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Technical Information Report
� PREPARED FOR:
Greene-Gasaway Architects, PLLC ,
PO Box 4158 '
Federal Way, WA 98063-4158
PROJECT: ��
Tiffany Park Elementary School '
Portables
; 1601 Lake Youngs Way SE
Renton, WA 98058
- Project No. 2150098.10 ,
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PREPARED 8Y: I
Adam C. Braun, PE
Project Engineer
.:
` ` REVlEWED BY:
, William J. Fierst, PE
� Project Manager
Sean M. Comfort, PE
` Principal
DATE:
April 2015
Revised June 2015
Civil Engineers • Structura!Engineers • Landscape Architects • Community Planners • Land Surveyors • Neighbors
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Technica/ Information Report
PREPARED FOR:
Greene-Gasaway Architects, PLLC
PO Box 4158
Federal Way, WA 98063-4158
PROJECT:
�, �T ",�� Tiffany Park Elementary School
�. �a� Portables
��� .er�,�4� 1601 Lake Youngs Way SE
`���� ''��' Renton, WA 98058
Project No. 2150098.10
� ' PREPARED BY:
�`�s�o ����� A m . Br n
HAL da C au , PE
Project Engineer
I hereby state that this Technical
Information Report for Tiffany Park REv1EWED BY.•
Elementary School Portables has been
prepared by me or under my supervision, William J. Fierst, PE
and meets the standard of care and
expertise that is usual and customary in Project Manager
this community for professional
engineers. I understand that City of Sean M. Comfort, PE
Renton does not and will not assume
liability for the sufficiency, suitability, or Principal
performance of drainage facilities
prepared by me. DATE:
April 2015
Revised June 2015
Table of Contents
Section Page
1.0 Project Overview............................................................................................................................1
2.0 Conditions and Requirements Summary....................................................................................1
2.1 CR 1 - Discharge at the Natural Location........................................................................... 1
2.2 CR 2 - Offsite Analysis........................................................................................................2
2.3 CR 3- Flow Control.............................................................................................................2
2.4 CR 4- Conveyance System................................................................................................2
2.5 CR 5- Erosion and Sediment Control.................................................................................3
2.6 CR 6- Maintenance and Operations ..................................................................................3
2.7 CR 7- Financial Guarantees and Liability..........................................................................3
2.8 CR 8 -Water Quality...........................................................................................................3
2.9 SR 1 - OtherAdopted Requirements..................................................................................3
2.10 SR 2- Flood Hazard Delineation........................................................................................4
2.11 SR 3- Flood Protection Facilities........................................................................................4
2.12 SR 4- Source Control.........................................................................................................4
2.13 SR 5-Oil Control................................................................................................................4
2.14 SR 6—Aquifer Protection Area...........................................................................................4
3.0 Offsite Analysis..............................................................................................................................4
3.1 Task 1 —Study Area Definition and Maps...........................................................................4
3.2 Task 2—Resource Review.................................................................................................5
3.3 Task 3—Field Inspection....................................................................................................5
3.4 Task 4—Drainage System Description and Problem Descriptions....................................6
4.0 Flow Control and Water Quality Facility Analysis and Design..................................................6
5.0 Conveyance System Analysis and Design..................................................................................7
6.0 Special Reports and Studies ........................................................................................................7
7.0 Other Permits .................................................................................................................................7
8.0 Construction Stormwater Pollution Prevention Plan (CSWPPP)Analysis and Design .........7
9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant.......................................8
10.0 Ope�ations and Maintenance Manual ..........................................................................................8
11.0 Conclusion......................................................................................................................................8
Tech�cal Information ryeport Q Q . a
Tiffan Park Elementa School Portables
Project No.2150098.10
Appendices
Appendix A
Technical Information Report(TIR)Worksheet
Exhibits
A-1.............Vicinity Map
A-2.............Existing Conditions Map
A-3.............Site Plan
A-4.............Area Calculation
A-5.............FIRM Rate Map
A-6.............Operations and Maintenance Manuai
A-7.............City of Renton Bond Quantities Worksheet
A-8.............King County Districts and Development Conditions
A-9.............City of Renton Aquifer Protection Map
A-10...........Storm Drainage Report by Warner Engineering, December 20, 1999
A-11...........Geotechnical Document Review by Associated Earth Sciences, Inc,
March 16, 2015
A-12...........As-Built Drawings by Warner Engineering, June 1, 2000
A-13...........Transcription of Voicemail from Steve Lee, City of Renton, April 7, 2015
A-14...........Conveyance Calculations
Tech ycal Information yeport Q Q . Q
Tiffan Park Elementa School Portables
Project No.2150098.10
1.0 Project Overview
Tiffany Park Elementary School is located at 1601 Lake Youngs Way SE on Parcel
No. 2123059057, Renton, Washington. See Exhibit A-1 for a Vicinity Map. The project site area
is 9.73 acres, with 4.84 acres of existing impervious coverage. The 2015 portable classr�om
project proposes to install one double portable classroom, landing, ramp, and stairs at Tiffany
Park Elementary School on an existing paved area. The new portable classroom will be located
directly over an existing detention pipe that was constructed in 1999-2000. In order to keep
drainage infrastructure accessible for maintenance purposes, a portion of the existing detention
tank will be removed and the remainder of it will be capped and filled with controlled density fill
(CDF). A replacement detention tank, flow control structure, drainage pipes, and associated
pavement will be constructed in a location where the portable classroom will not interfere with
maintenance of the drainage system. The detention tank will be built to match dimensions of the
existing system, as they were originally constructed. See Exhibit A-2 for the Existing Conditions
Map and Exhibit A-3 for the Site Plan. This would result in 428 square feet of new impervious
surface and 1,497 square feet of replaced impervious surface, for a total of 1,925 square feet of
new plus replaced impervious surface. The site will realize a net increase of 428 square feet in
impervious surFaces. See Exhibit A-4, Area Calcutations.
The 2009 King County Surface Water Design Manua!(KCSWDM) and City of Renton
Amendments to fhe King County Surface Water Design Manual(February 2010) establish the
methodology and design criteria used for the project. As directed by Steve Lee, Development
Engineering Manager at the City of Renton, in a voicemail message left for Bill Fierst of AHBL on
April 7, 2015, at 4:30 pm, relocation of the existing detention tank will be done to match
conditions of the existing system. The Storm Drainage Report from construction of the existing
school, as-built drawings from construction of the existing school, and surveyed conditions of the
;ite are provided in Exhibits A-10,A-12, and A-2, respectively. The applicant acknowledges that
future improvements on the site may trigger drainage improvements based on the cumulative
added impervious areas over a 6-year period, as noted by Steve Lee in the voicemail.
2.0 Conditions and Requirements Summary
The project is subject to Targeted Drainage Review Project Category 2 because it modifies a
drainage pipe larger than 12 inches in diameter and results in less than 2,000 square feet of new
plus replaced impervious surface. Below is a summary of how the proposed project will meet the
Core Requirements (CR).
2.1 CR 1 - Discharge at the Natural Location
The natural discharge location of stormwater for the project area is the existing detention tank
located under the paved area where the portable classroom will be placed. The detention tank
discharges to a 12-inch pipe that flows west away from the portable classroom and discharges to
a 60-inch pipe that flows northwest away from the site. Stormwater is conveyed from this poi�+
through a city-maintained stormwater system northwest to an outfall near Royal Hills Wc
Stormwater runoff patterns will continue to flow into the rec�nstructed detention tank, wr
discharge to the same 12-inch pipe flowing west away from the portable classroom. Drainage
conditions downstream from this location will remain unaltered. Roof and site runoff will
discharge at the natural location, and thus will not adversely affect downstream properties or
drainage systems.
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Tiffan Park Elementa School Portables 1
Project No.2150098.10
2.2 CR 2-Offsite Analysis
AHBL staff performed a Level One Downstream Analysis for the project on April 15, 2015. The
analysis included:
• Defining and mapping the study area.
• Reviewing available infoRnation on the study area.
• Field inspecting the study area.
• Analyzing the existing drainage system, including its existing and predicted problems, if
any.
Please refer to Section 3.0 for the full offsite analysis.
2.3 CR 3 -Flow Control
CR 3 does not apply to Targeted Drainage Review Project Category 2. The existing detention
tank will be relocated and replaced in-kind, as described in Section 1.0, to avoid conflict with the
new portable classroom. All dimensions of the proposed detention system, including depths,
orifices, diameters, and slopes, will match the dimensions of the existing system to ensure
operation of the detention system matches the original design by Warner Engineering.
In an effort to mitigate increased stormwater runoff, this project will provide a Flow Control BMP
meeting the guidelines of Section 5.2.1.2 and applicable portions of Section C.2.2 and C.2.3 of
the KCSWDM. As this project is on a large lot with low impervious surface coverage, the BMP
will be applied to the new impervious surface, per Section 5.2.1.2 of the KCSWDM. Full
dispersion is not feasible, as the site does not have any forested areas present, nor are any
forested areas available for use adiacent to the site. Full infiltration is not feasihle for this site, as
the site is underlain by a loamy sand, as described in the attached Geotechnical Report. Limited
infiltration has been deemed the most effective BMP that can be constructed on this site of the
nine options presented under Subsection 3 of Section 5.2.1.2 of the KCSWDM, and is provided in
accordance with Section C.2.3, as prescribed. As specified by Section C.2.3, an infiltration
device, from Section C.2.2 is provided. A Geotechnical Report is included, as specified by
Section C.2.3.1. The soil is a loamy sand, as allowed by Section C.2.3.2. As specified by
Section C.2.3.3, because the soil is a fine sand/loamy sand, 75 feet of infiltration trench will be
provided per 1,000 square feet. For the 448 square feet of impervious surface tributary to the
infiltration trench in lieu of the 428 square feet of new impervious surface located elsewhere on
the site, the length of required trench is defined as:
(448 SF/1,000 SF)x 75 LF = 33.6 LF
35 linear feet of infiltration trench is provided, exceeding the required length.
2.4 CR 4-Conveyance System
The new double portable classroom will include downspouts that discharge onto splash blocks
prior to flowing over pavement and entering existing and proposed catch basins onsite. No new
pipe systems will be constructed, and pipe systems constructed to replace existing pipe systems
will be built, to the extent feasible, to match existing conditions.
The change to the amount of impervious area tributary to the conveyance system is insignificant,
amounting to less than 0.01 acre on a 9.73-acre site, with a tributary area of 9.99 acres, of which
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Tiffan Park Elementa School Portables 2
Project No.2150098.10
4.84 acres is impervious according to the Storm Drainage Report, prepared by Warner
Engineering dated December 20, 1999.
Based on Section 1.2.4.1 of the KCSWDM, new pipe systems shall be designed with sufficient
capacity to convey and contain the 25-year peak flow, with a minimum of 6 inches of freeboard
between the design water surface and structure grate. In addition, runoff from the 100-year peak
storm event cannot create or aggravate a severe flooding problem or severe erosion problem.
The new pipe system is constructed in a manner to match existing conditions as closely as
physically possible. Moreover, the basins contributing to the conveyance system in the project
area do not significantly change. The conveyance calculations provided in the Storm Drainage
Report, prepared by Warner Engineering and dated December 20, 1999, demonstrate that the
existing conveyance system has capacity to convey both the 25-year peak and 100-year peak
flows within the pipes.
Catch basin rims do not overtop in the 100-year peak storm event, and there are more than
6 inches of freeboard between the design water surface and structure grate during the 25-year
peak storm event. No severe flooding problems or severe erosion problems are created or
aggravated in the 100-year storm event. See Exhibit A-10 for the referenced report.
Calculations in Exhibit A-14 show that the replaced conveyance elements in the new storm
system have capacity to convey the 100-year storm, which exceeds the requirement of conveying
the 25-year storm. To maintain consistency with the existing system, the 100-year design flow
rates from the original 1999 report have been used, as referenced.
2.5 CR 5- Erosion and Sediment Control
Onsite land disturbance will consist of small amounts of clearing the work site, pavement
demolition, removal and abandonment of existing drainage structures, and construction of new
replacement drainage structures. Erosion and sediment control will be provided with the use of
temporary and permanent seeding within the work limits, silt fence or wattles, and inlet sediment
protection. A Temporary Erosion and Sedimentation Control (TESC) Plan has been included in
the plan set. See Section 8.0 for Construction Stormwater Pollution Prevention Plan (CSWPPP) ,
Analysis and Designs.
2.6 CR 6 -Maintenance and Operations
Maintenance and operations of all drainage facilities will be maintained by the owner. The project
proposes new area drains and catch basins onsite. See Exhibit A-6 for the Operations and ,
Maintenance Manual. '
2.7 CR 7- Financial Guarantees and Liability
This project will provide financial guarantees and liability per City of Renton requirements. See
Exhibit A-7 for the City of Renton Bond Quantities Worksheet.
2.8 CR 8-Water Quality
CR 8 does not apply to Targeted Drainage Review Project Category 2.
2.9 SR 1 -Other Adopted Requirements
Special Requirement(SR) 1 does not apply to Targeted Drainage Review Project Category 2.
Tech ycal Infortnation Report Q Q . O
Tiffan Park Elementa School Portables 3
Project No.2150098.10
2.10 SR 2- Flood Hazard Delineation
SR 2 does not apply to Targeted Drainage Review Project Category 2.
2.11 SR 3- Flood Protection Facilities '
SR 3 does not apply to Targeted Drainage Review Project Category 2 i
2.12 SR 4-Source Control
The proposed projec. ,.. ; . . .. _. : ,., .,.: -. . :_ _ ..
commercial, indu�
2.13 SR 5-Oil Contrc
SR 5 does not aFr , ._ _-.�--
2.14 SR 6—Aquifer Protection Arc
The project is located within an , , ,
any of the drainage facilities that have special requirements applicable to Aquifer Protection Area,
Zone 2. See Exhibit A-9 for the City of Renton Aquifer Protection Map.
, 3.0 Offsite Analysis
Other portions of the existing Tiffany Park Elementary School site contribute drainage to the
project area, as documented in the attached Storm Drainage Report, dated December 20, 1999,
prepared by Warner Engineering, included as Exhibit A-10.
3.1 Task 1 —Study Area Definition and Maps
Tiffany Park Elementary School proposes to place one new portable classroom building on the
9.73-acre site located at 1601 Lake Youngs Way SE in Renton, Washington. AHBL staff visited
the site on April 15, 2015.
The project site lies within the Lower Cedar River Drainage Basin, as delineated by the King
County Water Features Map. There are no known wetlands on or in the vicinity of the project site
basin. The existing project site consists of one double portable classroom building, one portable
ramp, an asphalt play area, an asphalt fire lane, a storage container, and a grassed area.
The project site basin receives upstream stormwater from the existing onsite school building and
paved play areas, as documented in the Storm Drainage Report, prepared by Warner
Engineering and dated December 20, 1999. In existing conditions, there is one discharge
location from the project site. Stormwater from the existing portable roofs is conveyed via
, downspouts and splash blocks, and sheet flows to existing and proposed catch basins onsite.
Stormwater flows via stormwater pipes into a detention tank located onsite. Flow from the
detention tank discharges at a controlled rate to a 12-inch storm pipe, which flows west to a
120-inch diameter catch basin located at the west corner of the site. Stormwater then flows
northwest through a fi0-inch diameter storm pipe, which continues for over 1,320 feet beyond the
site, located primarily under Lake Youngs Way SE toward Royal Hills Drive SE. This stormwater
pipe discharges to an open ditch along the southeast side of Royal Hills Drive SE.
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Tiffan Park Elementa School Portables 4
Project No.2150098.10
3.2 Task 2—Resource Review
The following resources were reviewed to discover any existing or potential problems in the study
area:
• Civil Engineering Plans: Tiffany Park Elementary School, dated December 20, 1999,
prepared by Warner Engineering.
• FEMA Map: FEMA Flood Insurance Rate Map 53033C0983F, dated May 16, 1995,
indicates that the project site lies within Zone X—areas determined to be outside the
500-year floodplain (see Exhibit A-5).
• City of Renton Sensitive Area Maps: The project site is not located in any of the following
mapped critical areas:
o Erosion Hazard Areas
o Landslide Hazard Areas
o Steep Slope Hazard Areas
• City of Renton Sensitive Area Maps: The project site is located in the following mapped
critical areas:
o Aquifer Protection Area, Zone 2
o Coal Mine Hazard, Moderate Severity
• King County iMap: The project site is not located in any of the following mapped critical 'I
areas: I
o Erosion Hazard Areas ��
o Landslide Hazard Areas �
o Seismic Hazard Areas �
o Wetlands �,
• Soils Information: Site soils have been classified as ablation till over lodgment till, based I,
on a geotechnical engineering report dated June 18, 1999, prepared by GeoEngineers. ,
This report is included as a portion of the Storm Drainage Report, attached as Exhibit A-10. �,
Soils at a nearby site have been classified as medium dense to very dense Vashon ��,
lodgment till, based on the Geotechnical Document Review, attached as Exhibit A-11. I
• City of Renton COR Maps: The downstream conveyance system was identified by a site
visit on April 15, 2015, with the aid of City of Renton COR Maps, which were referenced in I
the field. '
3.3 Task 3—Field Inspection
On April 15, 2015, AHBL staff performed a Downstream Analysis of the drainage system
receiving stormwater runoff from the proposed portable classrooms at Tiffany Park Elementary
School.
1. Investigate any problems reported or observed during the resource review: No problems
were reported or observed during the resource review.
2. Locate all existing/potential constrictions or lack of capacity in the existing drainage system:
No constrictions or lack of capacity in the existing drainage system was observed.
Tech�cal Information Report QQ . Q
I Tiffan Park Elementa School Portables 5
Project No.2150098.10
3. Identify all existing/potential downstream drainage problems as defined in Section 1.2.2.1:
No existing/potential downstream drainage problems were observed.
4. Identify existing/potential overtopping, scouring, bank sloughing, or sedimentation:
No existing/potential overtopping, scouring, bank sloughing, or sedimentation was
observed.
5. Identify significant destruction of aquatic habitat or organisms (e.g., severe siltation, back
erosion, or incision in a stream): No significant destruction of aquatic habitat or organisms
was observed.
6. Collect qualitative data on features such as land use, impervious surfaces, topography, and
soil types: The land use on the project site is a school site, which consists of one double
portable classroom building, one portable ramp, an asphalt play area, and asphalt fire lane,
a storage container, and a grassed area. The project site area is 9.73 acres, with
4.84 acres of existing impervious coverage.
7. Collect information on pipe sizes, channel characteristics, drainage structures, and relevant
critical areas (e.g., wetlands, stream, and steep slopes): Pipe sizes were determined by
using survey information and City of Renton COR Maps. The pipe running downstream �
flowing northwest away from the site is a 60-inch diameter pipe. No critical areas were �
observed.
8. Verify tributary basins delineated in Task 1: Based on the topography onsite, the basin
delineation based on the survey was confirmed.
9. Contact nei hborin ro ert owners or residents in the area about ast or existin
9 9P P Y P 9
drainage problems, and describe these in the report (optional): This requirement is not
applicable for this project.
10. Note the date and weather conditions at the time of the inspection: The site visit occurred
on April 15, 2015. The weather was dry and 50 degrees.
3.4 Task 4—Drainage System Description and Problem Descriptions
The natural discharge location of stormwater for the project area is the 60-inch diameter storm
pipe that flows northwest away from the site. In existing conditions, there is one discharge
location from the project site. Stormwater from the existing portable roofs is conveyed via
downspouts and splash blocks, and sheet flows to existing and proposed catch basins onsite.
Stormwater flows via stormwater pipes into a detention tank located onsite. Flow from the
detention tank discharges at a controlled rate to a 12-inch storm pipe, which flows west to a
120-inch diameter catch basin located at the west comer of the site. Stormwater then flo�.�,s
northwest through a 60-inch diameter storm pipe, which continues for over 1,320 feet be: rc tr,e
site.
No signs of flooding, overtopping, or erosion were evident at the time of the inspecti�
4.0 Flow Control and Water Quality Facility Analysis and Design
See Sections 2 3 and 2 8 above for the Flow Control and Water Quality.Ana�;� � -�
,,�� ��� �� � , ,�.�, ��--. - -
Tiffany Park Elementar
Pro�ect No 2150098 "
5.0 Conveyance System Analysis and Design
The project proposes replacement of storm drainage facilities in the project vicinity of the
proposed double classroom portable. Storm drainage from proposed asphalt pavement and
grassed areas sheet flows to existing and proposed catch basins onsite prior to connection to the
replacement detention system and existing downstream conveyance system. Basin conditions
have not significantly changed since the original Storm Drainage Report was completed in 1999,
so conveyance capacity calculations provided are referenced from the Storm Drainage Report,
prepared by Warner Engineering and dated December 20, 1999, and are included in
Exhibit A-10.
6.0 Special Reports and Studies
The Storm Drainage Report prepared by Warner Engineering and dated December 20, 1999, for
the construction of the original Tiffany Park Elementary School has been included as
Exhibit A-10.
7.0 Other Permits
No other permits are required as part of this proposed development.
8.0 Construction Stormwater Pollution Prevention Plan (CSWPPP) Analysis
and Design
The proposed devel�pment shall comply with guidelines set forth in City of Renton drainage
requirements. The plan will include erosion/sedimentation control features designed to prevent
sediment-laden runoff from leaving the site or adversely affecting critical water resources during
construction.
The following measures are shown on the ESC plans and will be used to control sedimentation/
erosion processes:
• Clearing Limits—All areas to remain undisturbed during the construction of the project will
be delineated prior to any site clearing or grading.
• Cover Measures—Cover measures will be implemented for the disturbed areas.
• Perimeter Protection—Filter fabric fences for site runoff protection will be provided at the
downstream site perimeter.
• Traffic Area Stabilization—All traffic areas on the site are covered with existing pavement,
which will minimize erosion and tracking of sediment offsite.
• Sediment Retention — Inlet sediment protection will be utilized as part of this project.
• Storm Drain Inlet Protection— Inlet sediment protection will be provided on all new and '�,
existing catch basins downstream of construction activities. �
• Surface Water Collection—Catch basins and conveyance pipes will provide surface water II
collection. '
• Dewatering Control —Dewatering Control is not applicable for this project.
Technical Information Report I,
Tiffany Park Elementary School Portables 7 Q Q � Q �,
Project No.2150098.10 �
. Dust Control —Dust control measures, including sweeping and water truck, will be
implemented when exposed soils are dry to the point that wind transport is possible, and
roadways, drainage ways, or surface waters are likely to be impacted.
• Flow Control—Flow control is not applicable for this project.
9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant
See Section 2.7 above for CR 7— Financial Guarantees and Liability. See Exhibit A-7 for the City
of Renton Bond Quantities Worksheet. Facility Summaries and Declaration of Covenant are not
applicable to this project.
10.0 Operations and Maintenance Manual
Maintenance and operations of all drainage facilities will be maintained by the owner. The project
proposes �ew catch basins onsite and a replacement detention tank and control structure. SeF
Exhibit A-E
11.0 Conclus :
This site has been aesign�:c �o rneet or exceea Lne requirer��ents oi tne ��u� r�ing �,ou
Surface Water Design Manual(KCSWDM), as amended by the City of Renton Amendn
the King County Surface WaterDesign Manua!(February 2010` � �
utilize City of Renton standards for sizing stormwater conveyar
This analysis is based on data and records either supplied to or obtaine.. _, �.� __� �.�__..
are referenced within the text of the analysis. The analysis has been prepared using procedures a�
practices within the standard accepted practices of the industry.
AHBL, Inc.
��
Adam C. Braun, PE
Project Engineer
ACB/lsk
April 2015
Revised June 2015
Q:1201 5121 5 0098\WORDPROC�Reports120150623 Rpt(TIR)2150098.10.docx
Technical Information Report Q Q O Q
Tiffany Park Elementary School Portables 8 .
Project No.2150098.10
� i-�
Appendix A
Technical Information Report (TIR) Worksheet
Exhibits
A-1....................Vicinity Map
A-2....................Existing Conditions Map
A-3....................Site Plan
A-4....................Area Calculation
A-5....................FIRM Rate Map
A-6....................Operations and Maintenance Manual
A-7....................City of Renton Bond Quantities Worksheet
A-8....................King County Districts and Development Conditions
A-9....................City of Renton Aquifer Protection Map
A-10..................Storm Drainage Report by Wamer Engineering, December 20, 1999
A-11..................Geotechnical Document Review by Associated Earth Sciences, Inc,
March 16, 2015
A-12..................As-Built Drawings by Warner Engineering, June 1, 2000
A-13..................Transcription of Voicemail from Steve Lee, City of Renton,April 7, 2015
A-14..................Conveyance Calculations
Tech�cal Information�eport QQ - Q
Tiffan Park Elementa School Portables
Project No.2150098.10
KItiG COU\ 1'l', WASHI�GTO1�, SURF.aCE \k'ATER DESIGN V1A\UAI.
KING COU'�'TY, WASHINGTON
SURFACE WATER DESIGN �VIANUAL
REFERENCE 8-A
TECHNICAL INFORI�ZATION
REPORT (TIR) WORKSHEET
2009 Surface Vb'ater Design I�4anual 1;�9�2009
KIrG COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL
TECHNICAL INFORMATION REPORT (TIR) WORKSHEET
Part 1 PROJECT OWNER AND Part 2 PROJECT LOCATION AND
PROJECT ENGINEER DESCRIPTION '
Project Owner Renton School District Project Name Tiffany Park Elementary Portables
Phone (425) 204-4403 DDES Permit#
Address 7812 S 124th St Location Township 23 N
Seattle, WA 98178 Range 5 E
Project Engineer Adam Braun, P.E. Section 21 ',
Company AHBL Site Address 1601 Lake Youngs Way SE I
Phone 253 383-2422 Renton, WA 98058
Part 3 TYPE OF PERMIT APPLICATION Part 4 OTHER REVIEWS AND PERMITS
❑ Landuse Services ❑ DFW HPA ❑ Shoreline
Subdivison / Short Subd. / UPD Management
❑ COE 404
� Building Services ❑ DOE Dam Safety � Structural
M/F/Commerical / SFR RockeryNaulU
❑ Clearing and Grading ❑ FEMA Floodplain � ESA Section 7
❑ Right-of-Way Use ❑ COE Wetlands
❑ Other ❑ Other
Part 5 PLAN AND REPORT INFORMATION �
Technical Information Report Site Improvement Plan (Engr. Plans)
Type of Drainage Review Full / argete / Type (circle one): Full Modified /
(circle): Large Site mall Sit
Date (include revision Aqril 20, 2015 Date (include revision April 20, 2015
dates): dates):
Date of Final: Date of Final:
Part 6 ADJUSTMENT APPROVALS
Type (circle one): tandar 1 Complex / Preapplication / Experimental/ Blanket
Description: (include conditions in TIR Section 2)
Date of A roval:
2009 Surface Water Design�Ianual 1 9 200y
1
KING COUNTY, WASHINGTON, StiRFACE R�ATER DESIGN �4ANUAL
TECHNICAL INFORMATION REPORT (TIR) WORKSHEET
Part 7 MONITORING REQUIREMENTS
Monitoring Required: Yes ! No Describe:
Start Date:
Completion Date:
Part 8 SITE COMMUNITY AND DRAINAGE BASIN
Community Plan : n/a
Special District Overlays: n/a
Drainage Basin: Lower Cedar River
Stormwater Requirements: Not Applicable to Project(Level 2 Flow Control/Basic WQ)
Part 9 ONSITE AND ADJACENT SENSITIVE AREAS
❑ River/Stream ❑ Steep Slope
❑ Lake ❑ Erosion Hazard
❑ Wetlands ❑ Landslide Hazard
❑ Closed Depression 0 Coal Mine Hazard Moderate
❑ Floodplain ❑ Seismic Hazard
❑ Other ❑ Habitat Protection
0 Aquifer-Zone 2
Part 10 SOILS
Soil Type Slopes Erosion Potential I
Arents,Alderwood Material(AmC) 6% - 15% Low to Moderate
❑ High Groundwater Table (within 5 feet) ❑ Sole Source Aquifer
❑ Other ❑ Seeps/Springs
❑ Additional Sheets Attached
2009 Surface��'ater Design�ianual 1/9.%2009
2
KI\G COUNTY, wASHII�GTON, SliRFaCE V�'ATER DESIGI� �1ANi:AL
TECHNICAL INFORMATION REPORT (TIR) WORKSHEET
Part 11 DRAINAGE DESIGN LIMITATIONS
REFERENCE LIMITATION/SITE CONSTRAINT
❑ Core 2 —Offsite Analvsis
❑ Sensitive/Critical Areas
❑ SEPA
❑ Other
❑ I
i ❑ Additional Sheets Attached
Part 12 TIR SUMMARY SHEET provide one TIR Summa Sheet per Threshold Dischar Area
Threshold Discharge Area:
name or descri tion 1 -site area
Core Requirements (all 8 apply)
Dischar e at Natural Location Number of Natural Dischar e Locations: 1
� Offsite Analysis Level: 1 / 2 / 3 dated:
Flow Control NOT APPLICABLE Level: 1 / 2 / 3 or Exemption Number
incl. facili summa sheet Small Site BM s
Conveyance System Spill containment located at: CB 4
i
i Erosion and Sediment Control ESC Site Supervisor:
I Contact Phone: TO BE DETERMINED
After Hours Phone:
Maintenance and Operation Responsibility: Private Public
If Private, Maintenance Lo Re uired: Yes /No
Financial Guarantees and Provided: Yes / No
� Liabili
Water Quality Type: Basic Sens. Lake / Enhanced Basicm / Bog
(include facility summary sheet) or Exemption o.
NOT APPLICABLE Landsca e Mana ement Plan: Yes / No
S ecial Re uirements as a licable
Area Specific Drainage Type: CDA/SDO/MDP/ BP/LMP/Shared Fac. /None
�, Re uirements Name:
Floodplain/Floodway Delineation Type: Major I Minor / Exemption / None
100-year Base Flood Elevation (or range):
Datum: �
Flood Protection Facilities Describe:
Source Control Describe landuse:
(comm./industrial landuse) Describe any structural controls:
2009 Surface��'ater Design��ianual 1!9 2009
3
KING COUNTY, WASHINGTON, SURFACE WATER DESIGN vIANUAL
TECHNICAL INFORMATION REPORT (TIR) WORKSHEET
Oil Control High-use Site: Yes / No
Treatment BMP:
Maintenance Agreement: Yes / No
with whom?
Other Draina e Structures
Describe:
Existing 48-inch diameter detention tank and control structure to be replaced in-kind.
Part 13 EROSION AND SEDIMENT CONTROL REQUIREMENTS
MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS
DURING CONSTRUCTION AFTER CONSTRUCTION
0 Clearing Limits 0 Stabilize Exposed Surfaces
❑ Cover Measures 0 Remove and Restore Temporary ESC Facilities
0 Perimeter Protection � Clean and Remove All Silt and Debris, Ensure
� Traffic Area Stabilization Operation of Permanent Facilities
❑ Sediment Retention ❑ Flag Limits of SAO and open space
preservation areas
❑ Surface Water Collection ❑ Other
❑ Dewatering Control
0 Dust Control
0 Flow Control
Part 14 STORMWATER FACILITY DESCRIPTIONS Note: Include Facili Summa and Sketch
Flow Control T e/Descri tion Water Quali T e/Descri tion
X❑ Detention Re-build existing detention tank
❑ Biofiltration
❑ Infiltration ❑ Wetpool
❑ Regional Facility ❑ Media Filtration
❑ Shared Facility ❑ Oil Control
❑ Flow Control ❑ Spill Control
BMPs
❑ Flow Control BMPs
❑ Other
❑ Other
2009 Surface Water Design�Zanual 1/9i2009
4
KII�G COUNTY, WASHINGTON, SURFACE WATER DESIGN �1ANtiAL
TECHNICAL INFORMATION REPORT (TIR) WORKSHEET
Part 15 EASEMENTS/TRACTS Part 16 STRUCTURAL ANALYSIS
❑ Drainage Easement ❑ Cast in Place Vault
❑ Covenant ❑ Retaining Wall
❑ Native Growth Protection Covenant ❑ Rockery > 4' High
i
❑ Tract ❑ Structural on Steep Slope '
❑ Other ❑ Other
Part 17 SIGNATURE OF PROFESSIONAL ENGINEER
', I, or a civil engineer under my supervision, have visited the site. Actual site conditions as observed were
' incorporated into this worksheet and the attached Technical Information Report. To the best of my
kn ledge the information provided here is accurate.
• � _
Sr ned/Date
2009 Surface�l�ater Design�ianual 1l9%2009
5
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CFederal Emergency Manageme»t Agency
SOUIH[AST 161S --------------- �
This is an official copy of a poRion of the above refirenced flood map. It
was extracted using F-MIT On-Line. This mep does not rellect changes
oi amandmenta which may have been made subsequent to the dete on the
title block For the latest product information aboiR Natronal Flood Insurance
Program flood ma{�s r.heck the FCMA Flood Map Store at vwaw.msc.fema gov
EXHIBIT A-5
1PPEI�D1�A �1AI\TENAV"CF REQU[R�M�\TS FOR FL01V C:O\TROL.COV��,�'1�_t�:1\CE..aV�D 1��Q FAC1L1"I�IES
NO. 3-DETENTION TANKS AND VAULTS
Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Site Trash and debris Any tresh and debris which exceed 1 cubic foot Trash and debris cleared from site.
per 1,000 square feet(this is about equal to the
amount of trash it would take to fill up one
standarcl size oftice garbage can). In general,
' , there should be no visual evidence of dumping.
Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation �
constitute a hazard to County personnel or the removed according to applicable
public. regulations. No danger of noxious
vegetation where County personnel
or the public might normally be.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of
pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations.
Source control BMPs implemented if
appropriate. No contaminants
present other than a surtace oil film.
Grass/groundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a
height. height no greater than 6 inches.
Tank or Vault Trash and debris Any trash and debris accumulated in vault or tank No trash or debris in vault.
Storage Area (includes floatables and non-floatables).
Sediment Accumulated sediment depth exceeds 10%of the All sediment removed from storage
accumulation diameter of the storage area for Yz length of area.
storage vault or any point depth exceeds 15%of
diameter. Example:72-inch storage tank would
require cleaning when sediment reaches depth of
7 inches for more than Yz length of tank.
Tank Structure Plugged air vent Any blockage of the vent. Tank or vault freely vents.
Tank bent out of Any part of tank/pipe is bent out of shape rnore Tank repaired or replaced to design.
shape than 10%of its design shape.
Gaps between A gap wider than'/�-inch at the joint of any tank No water or soil entering tank
sections,damaged sections or any evidence of soil particles entering through joints or walls. li
joints or cracks or the tank at a joint or through a wall. '
tears in wall
Vault Structure Damage to wall, Cracks wider than'/�-inch,any evidence of soil Vault is sealed and structurally '
frame,bottom,and/or entering the structure through cracks or qualified sound.
top slab inspection personnel determines that the vault is
not structurally sound.
InIeUOutlet Pipes Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes Gear of sediment.
accumulation
Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes.
pipes(includes floatables and non-floatables).
Damaged Cracks wider than'/rinch at the joint of the No cracks more than Y.-inch wide at
inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe.
at the joints of the inleUoutlet pipes.
EXHIBIT A-6
PAGE 1 OF 8
2009 Surface R-'ater Design Manual—Appendix A 1 i 9/2009
A-5
APPENDIX A MAINTENANCE REQUIREMENTS FLOW CONTROL,CONVEYANCE,A1�D WQ F.ACILITIES
NO. 3- DETENTION TANKS AND VAULTS
Maintenance Defect or Problem Conditions When Maintenance is Needed ResuFts Expected When
Component Maintenance is PerFormed
Access Manhole Cover/lid not in place Coverllid is missing or only partially in place. Manhole access covered.
Any open manhole requires immediate
maintenance.
Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools.
not working maintenance person with proper tools.Bolts
cannot be seated. Self-locking cover/lid does not
work.
Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and
remove cover/lid after applying 80 Ibs of lift. reinstalled by one maintenance
person.
Ladder rungs unsafe Missing rungs,misalignment,rust,or cracks. Ladder meets design standards.
Allows maintenance person safe
access.
Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it
doors/plate to open opened/rernoved using normal equipment. can opened as designed.
Gaps,doesn't cover Large access doors not flat andlor access Doors dose flat and covers access
completely opening not completely covered. opening completely.
Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings suffiaent to lift or
rusted or plate. remove door or plate.
I
�
�
�
EXHIBIT A-6
PAGE20F8
1/9.�2009 2009 Surface Water Design vlanual—Appendix A
A-6
APPENDIX A MA[�1TENAVCE REQUIREMENTS FOR FLO�V COtiTROL,COhVEYAVCE,AI�D WQ FACILITIES
NO. 4-CONTROL STRUCTUREIFLOW RESTRICTOR
Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Structure Trash and debris Trash or debris of more than YZ cubic foot which No Trash or debris blocking or
is located immediately in front of the structure potentially blocking enVance to �,
opening or is blocking capacity of the structure by structure. '
more than 10°k. '
Tresh or debris in the structure that exceeds�I3 No trash or debris in the structure. '
the depth from the bottom of basin to invert the
lowest pipe into or out of the basin.
Deposits of garbage exceeding 1 cubic foot in No condition present which would
volume. attract or support the breeding of '
insects or rodents.
Sediment Sediment exceeds 60%of the depth from the Sump of structure contains no
bottom of the structure to the invert of the lowest sediment.
pipe into or out of the structure or the bottom of
the FROP-T section or is within 6 inches of the
invert of the lowest pipe into or out of the
structure or the bottom of the FROP-T section.
Damage to frame Corner of frame extends more than 3/,inch past Frame is even with curt�.
and/or top slab curb face into the street(If applicable).
Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks.
cradcs wider than Y.inch.
Frame not sitting flush on top slab, i.e., Frame is sitting flush on top slab.
separation of more than 3/.inch of the frame from
the top slab.
Cracks in walis or Cracks wider than'/�inch and longer than 3 feet, Structure is sealed and structurally
bottom any evidence of soil particles entering structure sound.
through cracks,or maintenance person judges
that structure is unsound.
Cracks wider than%z inch and longer than 1 foot No cradcs more than'/,inch wide at
at the joint of any inleUoutlet pipe or any evidence the joint of inleUoutlet pipe.
of soil particles entering struclure through cracks.
SettlemenU Structure has settled more than 1 inch or has Basin replaced or repaired to design
misalignment rotated more than 2 inches out of alignment. standards.
Damaged pipe joints Cracks wider than Yrinch at the joint of the No cracks more than Y,-inch wide at
inleUoutlei pipes or any evidence of soil entering the joint of inleUoutlet pipes.
the structure at the joint of the inleUoutlet pipes.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of
pollution as oil,gasoline, concrete slurries or paini. according to applicable regulations.
Source control BMPs implemented if
appropriate. No contaminants
present other than a surface oil film.
Ladder rungs missing Ladder is unsafe due to missing rungs, Ladder meets design standards and
or unsafe misalignment,rust,cracks,or sharp edges. allows maintenance person safe
access.
FROP-T Section Damage T section is not securely attached to structure T section securely attached to wall
wall and outlet pipe structure should support at and outlet pipe.
least 1,000 Ibs of up or down pressure.
Structure is not in upright position(allow up to Structure in correct position.
10%from plumb).
Connections to outlet pipe are not watertight or Connections to outlei pipe are water
show signs of deteriorated grout. tight;structure repaired or replaced
and works as designed.
Any holes--other than designed holes—in the Structure has no holes other than
structure. designed holes.
Cleanout Gate Damaged or missing Cleanout gate is missing. Replace cleanout gate.
2009 Surface Water Design Manual-Appendix A EXHIBIT A-6 �`9�2009
A-7
PAGE30F8
APPENDIX.A MANTE\.A�CE REQli[REME\TS FLOW CO\TROL,COnVEY,4tiCE,.A�D\�Q FACILITIES
NO. 4-CONTROL STRUCTURE/FLOW RESTRICTOR
Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Cleanout gate is not watertight. Gate is watertight and works as
designed.
Gate cannot be moved up and down by one Gate moves up and down easily and
maintenance person. is watertight.
ChaiNrod leading to gate is missing or damaged. Chain is in place and works as
designed.
Orifice Plate Damaged or missing Control device is not working properiy due to Plate is in place and works as
missing,out of place,or bent orifice plate. designed.
Obstructions Any trash,debris,sediment,or vegetation Plate is free of ail obstructions and
blocking the plate. works as designed.
Overtlow Pipe Obstructions Any trash or debris blocking(or having the Pipe is free of all obstructions and
potential of blocking)the overflow pipe. works as designed.
Deformed or damaged Lip of overflow pipe is bent or deformed. Overflow pipe does not allow
Iip overflow at an elevation lower than
design
InIeUOutlet Pipe Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment.
accumulation
Trash and debris Trash and debris accumuiated in inlet/outlet No trash or debris in pipes.
pipes(includes floatables and non-floatables).
Damaged Cracks wider than Yrinch at the joint of the No cracks more than'/.-inch wide at
inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe.
at the joints of the inleUoutlet pipes.
Metal Grates Unsafe grate opening Grate with opening wider than'/g inch. Grate opening meets design
(If Applicable) standards.
Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris.
of grate surface. footnote to guidelines for disposal
Damaged or missing Grate missing or broken member(s)of the grate. Grate is in place and meets design
standards.
� Manhole Cover/Lid Covedlid not in place CoveNlid is missing or only partially in place. Cover/lid protects opening to
� Any open structure requires urgent structure.
i maintenance.
Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools.
Not Working maintenance person with proper tools.Bolts
cannot be seated. Self-locking cover/lid does not
work.
Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and
Remove coverAid after applying 80 Ibs.of lift. reinstalled by one maintenance
person.
EXHIBIT A-6
PAGE40F8
1/9/2009 2009 Surface Water Design Manual—Appendix A
.4-S
aPPEND[X A :VI.AI�TENAtiCE REQU[REMEVTS FOR FLO�V CO\TROL,CO\VEYAtiCE,A�D�'�Q FACILITIES �
NO. 5-CATCH BASINS AND MANHOLES '
Maintenance Defect or Problem Co�dition When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Structure Sediment Sediment exceeds 60°k of the depth from the Sump of catch basin contains no
bottom of the catch basin to the invert of the sediment.
lowest pipe into or out of the catch basin or is
within 6 inches of the invert of the lowest pipe
into or out of the catch basin.
Trash and debris Trash or debris of more than YZ cubic foot which No Trash or debris blocking or
is located immediately in front of the catch basin potentiaily blocking entrance to
opening or is blocking capaciry of the catch basin catch basin.
by more than 10%. i
Trash or debris in the catch basin that exceeds No trash or debris in the catch basin.
'/3 the depth from the bottom of basin to invert the
lowest pipe into or out of the basin.
Dead animals or vegetation that could generate No dead animals or vegetation
odors that could cause complaints or dangerous present within catch basin.
I gases(e.g., methane).
Deposits of garbage exceeding 1 cubic foot in No condition present which would
volume. attract or support the breeding of
insects or rodents.
Damage to frame Corner of frame extends more than'/.inch past Frame is even with curb.
and/or top slab curb face into the street(If applicable).
Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks.
cracks wider than�/.inch.
Frame not sitting flush on top slab, i.e., Frame is sitting flush on top slab.
separation of more than'/.inch of the frame from
ihe top slab.
Cracks in walls or Cracks wider than'/:inch and longer than 3 feet, Catch basin is sealed and
bottom any evidence of soil particles entering catch structurally sound.
basin through cracks,or maintenance person
judges that catch basin is unsound.
Cracks wider than'/z inch and longer than 1 foot No cracks more than�/4 inch wide at
at the joint of any inleUoutlet pipe or any evidence the joint of inleUoutlet pipe.
of soil particles entering catch basin through
cracks.
SettlemenU Catch basin has settled more than 1 inch or has Basin replaced or repaired to design
misalignment rotated more than 2 inches out of alignment. standards.
Damaged pipe joints Cracks wider than'/rinch at the joint of the No cracks more than'/.-inch wide at
inleUoutlet pipes or any evidence of soil entering the joint of inlet/outlet pipes.
the catch basin at the joint of the inleUoutlet
pipes.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of
poilution as oil,gasoline,concrete slurries or paint. according to applicable regulations.
Source control BMPs implemented if
appropriate. No contaminants
present other than a surface oil film.
InIeUOutlet Pipe Sedirnent Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment. I
accumulation
Trash and debris Trash and debns accumulated in inlet/outlet No trash or debris in pipes. '�
pipes(includes floatables and non-floatables}.
Damaged Cracks wider than'/rinch at the joint of the No cracks more than Y.-inch wide at
inlet/outlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe.
at the joints of the inlet/outlet pipes.
EXHIBIT A-6
PAGE50F8
2009 Surface��'ater Design Manual—Appendix A 1�9�`2009
A-9
.4PPENDIX� MAINTE\AtiCE REQUIREh4E\TS FLOW CO�TROL,CO1�4'EY.4VCE,AnD��v'Q F�CIL[TIES
NO. 5-CATCH BASINS AND MANHOLES
Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Metal Grates Unsafe grate opening Grate with opening wider than'/e inch. Grate opening meets design
(Catch Basins) standards.
Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris.
of grate surface. footnote to guidelines for disposal
Damaged or missing Grate missing or broken member(s)of the grate. Grate is in place and meets design �'
Any open structure requires urgent sNandards.
maintenance.
Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in place. Covedlid protects opening to
Any open structure requires urgent structure. �
maintenance.
Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. ''
Not Working maintenance person with proper tools.Bolts
cannot be seated. Self-locking cover/lid does not
work. ;
Cover/lid difficult to One maintenance person cannot remove CoveNlid can be removed and
Remove coverAid after applying 80 Ibs.of lift. reinstalled by one maintenance
person.
EXHIBIT A-6
PAGE 6 OF 8
1/9/2009 �009 Surface�V"ater Design lfanual—Appendix A
A-10
APPENDIX A 14AItiTENA\CE REQUIREMEtiTS FOR FLO�V CO\TROL,COtiVEl'.A�CE,A\D�i'Q FACILITIES
NO. 6-CONVEYANCE PIPES AND DITCHES
Maintenance Defect or Problem Canditions When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Pipes Sediment 8�debris Accumufated sediment or debris that exceeds Water flows freely through pipes.
accumulation 20%of the diameter ot the pipe.
Vegetation/roots Vegetation/roots that reduce free movement of Water flows freely through pipes.
water through pipes.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of '
pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations.
Source control BMPs implemented'rf
appropriate. No contaminants
present other than a surface oil film.
Damage to protective Protective coating is damaged;rust or corrosion Pipe repaired or replaced. '
coating or corrosion is weakening the sVuctural integrity of any part of
P�Pe•
Damaged Any dent that decreases the cross section area of Pipe repaired or replaced. '�
pipe by more than 20%or is determined to have �
weakened structural integrity of the pipe.
Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared frnm �
square feet of ditch and slopes. ditches.
Sediment Accumulated sediment that exceeds 20%of the Ditch cleaned/flushed of all sediment
accumulation design depth. and debris so that it matches design.
Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation
constitute a hazard to County personnel or the removed according to applicable
public. regulations. No danger of noxious
vegetation where County personnel
or the public might normally be.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of
pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations.
Source control BMPs implernented if
appropriate. No contaminants
present other than a surface oil film.
Vegetation Vegetation that reduces free movement of water Water flows freely through ditches.
through ditches.
Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding.
slopes
Rock lining out of One layer or less of rodc exists above native soil Replace rocks to design standards.
place or missing(If area 5 square feet or more,any exposed native
Applicable) soil.
EXHIBIT A-6
PAGE70F8
2009 Surface Vb'ater Design Manua(-Appendix A l 9/'009
A-11
.APPENDIX A MAI�1TEtiAI�CE REQUIREME�TS FLOW COVTROL,CO�iVEYA1�CE,AND WQ FACILITIES
NO. 11 -GROUNDS (LANDSCAPING)
Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When
Component Maintenance is Performed
Site Trash or litter Any trash and debris which exceed 1 cubic foot Trash and debris cleared from site.
per 1,000 square feet(this is about equal to the
amount of trash it would take to fill up one
standard size o�ce garbage can). In general,
there should be no visual evidence of dumping.
Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation
constitute a hazard to County personnel or the removed according to applicable
pubiic. regulations_ No danger of noxious
vegetation where County personnel �
pr the public might normally be.
Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of �
pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations.
Source control BMPs implemented if
appropriate. No contaminants
present other than a surtace oil film.
Grass/groundco�er Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a
height. height no greater than 6 inches.
Trees and Shrubs Hazard Any tree or limb of a tree identified as having a No hazard trees in facility.
potential to fall and cause property damage or
threaten human life. A hazard tree identified by
a qualified arborist must be removed as soon I
as possible.
Damaged Limbs or parts of trees or shrubs that are split or Trees and shrubs with less than 5% '
broken which affect more than 25°k of the total of total foliage with split or broken I
foliage of the tree or shrub. limbs.
Trees or shrubs that have been blown down or No blown down vegetation or
knocked over. knocked over vegetation. Trees or
shrubs free of injury.
Trees or shrubs which are not adequately Tree or shrub in place and
supported or are leaning over, causing exposure adequately supported;dead or
of the roots. diseased trees removea.
EXHIBIT A-6
PAGE80F8
U9'�009 ?0119 Surface�Vater Design tiTanual Appendix A
A-16
Site Improvement Bond Quantity Worksheet
Original bond computations prepared by:
Name: Adam C.Braun oate:April 15,2015
PE Reglatration Number. 46� Tel.#:(253)383-2422 '
Fi►m Name: AHBL '
Address: 2215 N 30th St,Suite 300,Tacoma,WA 98403 Pro)ect No: 2150098.10
ROAD IMPROVEMENTS&DRAINAGE FACILITIES FINANCIAL(�UARANTEE REQUIREMENTS
PERFORMANCE BOND'," PUBLIC ROAD&DRAINAGE
AMOUNT MAINTENANCE/DEFECT BOND','"
Stabilization/Erosion Sediment Control(ESC) (A) $ -
Existing Right-of-Way Improvements (B) $ -
Future Public Road Improvements&Drainage Facilities (C) $ -
Private Improvements (D) $ -
Construction Bond'Amount (A+g+C+D) = TOTAL (T) $ -
Minimum bond'amount is$1000.
(g+C)x
Maintenance/Defect Bond'Total 0.20= $ -
NAME OF PERSON PREPARING 80ND"REDUCTION: Date:
•NOTE:The word"bond"as used in this document means any financial guarantee acceptable to the City of Renton.
`*NOTE: All prices include labor,equipment,materials,overhead and profit. Prices are from RS Means data adjusted for the Seattle area
or from local sources if not included in the RS Means database.
REQUIRED BOND"AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY RDSD EXH I BIT A'7
Page 1 of 8 Unit prices updated:2/12/02
Version:4l22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
Site Improvement Bond Quantity Worksheet
Existing Future Public Private Ruantity Completed
Right-of-Way Right of Way Improvements (8ond Reduction)'
8 Draina e Facilities Quant.
Unit Price Unit Quant. Cost Quant. Cost Qua�t. Cost Com lete Cost
ENE IT S o.
Backfll&Com action-embankment GI-1 $ 5.62 CY 0 0.00 0 0.00 0 0.00 0 0.00
Backf II&Com action-trench GI-2 $ 8.53 CY 0 0.00 0 0.00 400 3,412.00 0 0.00
ClearlRemove Brush,b hand GI-3 $ 0.36 SY 0 0.00 0 0.00 0 0.00 0 0.00
Clearin /Grubbin /Tree Removal GI-4 $ 8,876.16 Acre 0 0.00 0 0.00 0 0.00 0 0.00
Excavation-bulk GI-5 $ 1.50 CY 0 0.00 0 0.00 0 0.00 0 0.00
Excavation-Trench GI-6 $ 4.06 CY 0 0.00 0 0.00 400 1,624.00 0 0.00
Fencin ,cedar,6'hi h GI-7 $ 18.55 LF 0 0.00 0 0.00 0 0.00 0 0.00
Fencin ,chain link,vin I coated, 6'hi h GI-8 $ 13.44 LF 0 0.00 0 0.00 0 0.00 0 0.00
Fencin ,chain link, ate,vin I coated, GI-9 $ 1,271.81 Each 0 0.00 0 0.00 1 1,271.81 0 0.00
Fencin ,s lit rail,3'hi h GI-1 $ 12.12 LF 0 0.00 0 0.00 0 0.00 0 0.00
Fill&com act-common barrow GI-11 $ 22.57 CY 0 0.00 0 0.00 0 0.00 0 0.00 I
Fill R com act- ravel base GI-12 $ 25.48 CY 0 0.00 0 0.00 0 0.00 0 0.00
Fill 8 com act-screened to soil GI-13 $ 37.85 CY 0 0.00 0 0.00 0 0.00 0 0.00
Gabion,12"dee ,stone filled mesh GI-14 $ 54.31 SY 0 0.00 0 0.00 0 0.00 0 0.00
Gabion,18"dee ,stone filled mesh GI-1 $ 74.85 SY 0 0.�0 0 0.00 0 0.00 0 0.00
Gabion.36"dee ,stone filled mesh GI-16 $ 132.48 SY 0 0.00 0 0.00 0 0.00 0 0.00
Gradin ,fine,b hand GI-17 $ 2.02 SY 0 0.00 0 0.00 0 0.00 0 0.00
Gradin ,fine,with rader GI-1 $ 0.95 SY 0 0.00 0 0.00 0 0.00 0 0.00
Monuments,3'lon GI-1 $ 135.13 Each 0 0.00 0 0.00 0 0.00 0 0.00
Sensitive Areas Si n GI-20 $ 2.88 Each 0 0.00 0 0.00 0 0.00 0 0.00
Soddin , 1"dee ,slo ed round GI-21 $ 7.46 SY 0 0.00 0 0.00 0 0.00 0 0.00
Surve in ,line 8 rade GI-22 $ 788.26 Da 0 0.00 0 0.00 3 2,364.78 0 0.00
Surve in ,lot location/lines GI-23 $ 1,556.64 Acre 0 0.00 0 0.00 0 0.00 0 0.00
Traffic control crew 2 fla ers GI-24 $ 85.18 HR 0 0.00 0 0.00 0 0.00 0 0.00
Trail,4"chi ed wood GI-2 $ 7.59 SY 0 0.00 0 0.00 0 0.00 0 0.00
Trail,4"crushed cinder GI-2 $ 8.33 SY 0 0.00 0 0.00 0 0.00 0 0.00
Trail,4"to course GI-27 $ 8.19 SY 0 0.00 0 0.00 0 0.00 0 0.00
Wall,retainin ,concrete GI-2 $ 44.16 SF 0 0.00 0 0.00 0 0.00 0 0.00
Wall,rockery GI-2 $ 9.49 SF 0 0.00 0 0.00 0 0.00 0 0.00
Page 2 of 7 SUBTOTAL 0.00 0.00 8,672.59 0.00
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
Site Improvement Bond Quantity Worksheet
Existing Future Public Private Bond Reduction'
Right-of-way Right of Way Improvements
&Draina e Facilltles Quant.
Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost
AD IMPROVEMENT No.
AC Grindin ,4'wide machine<1000s RI-1 $ 23.00 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Grindin ,4'wide machine 1000-200 RI-2 $ 5.75 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Grindin ,4'wide machine>2000s RI-3 $ 1.38 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Removal/Dis osal/Re air RI-4 $ 41.14 SY 0 0.00 0 0.00 1255 51,630.70 0 0.00
Barricade, e I RI-5 $ 30.03 LF 0 0.00 0 0.00 0 0.00 0 0.00
Barricade, e III Permanent RI-6 $ 45.05 LF 0 0.00 0 0.00 0 0.00 0 0.00
Curb 8 Gutter,rolled RI-7 $ 13.27 LF 0 0.00 0 0.00 0 0.00 0 0.00 ,
Curb&Gutter,vertical RI-e $ 9.69 LF 0 0.00 0 0.00 0 0.00 0 0.00 �
Curb and Gutter,demolition and dis osa RI-9 $ 13.58 LF 0 0.00 0 0.00 0 0.00 0 0.00
Curb,extruded as halt RI-10 $ 2.44 LF 0 0.00 0 0.00 0 0.00 0 0.00
Curb,extruded concrete RI-11 $ 2.56 LF 0 0.00 0 0.00 0 0.00 0 0.00
Sawcut,as halt,3"de th RI-12 $ 1.85 LF 0 0.00 0 0.00 0 0.00 0 0.00
Sawcut,concrete, er 1"de th RI-13 $ 1.69 LF 0 0.00 0 0.00 0 0.00 0 0.00
Sealant,as halt RI-14 $ 0.99 LF 0 0.00 0 0.00 0 0.00 0 0.00
Shoulder,AC, see AC road unit rice RI-15 $ - SY 0 0.00 0 0.00 0 0.00 0 0.00
Shoulder, ravel,4"thick RI-16 $ 7.53 SY 0 0.00 0 0.00 0 0.00 0 0.00
Sidewalk,4"thick RI-17 $ 30.52 SY 0 0.00 0 0.00 0 0.00 0 0.00
Sidewalk,4"thick,demolition and dis o RI-18 $ 27.73 SY 0 0.00 0 0.00 0 0.00 0 0.00
Sidewalk,5"thick RI-19 $ 34.94 SY 0 0.00 0 0.00 0 0.00 0 0.00
Sidewalk,5"thick,demolition and dis o RI-20 $ 34.65 SY 0 0.00 0 0.00 0 0.00 0 0.00
Si n,handica RI-21 $ 85.28 Each 0 0.00 0 0.00 0 0.00 0 0.00
Stri in , r stall RI-22 $ 5.82 Each 0 0.00 0 0.00 0 0.00 0 0.00
Stri in ,thermo lastic, for crosswalk RI-23 $ 2.38 SF 0 0.00 0 0.00 0 0.00 0 0.00
Striping,4"reflectorized line RI-24 $ 0.25 LF 0 0.00 0 0.00 287 71.75 0 0.00
Page 3 of 7 SUBTOTAL 0.00 0.00 51,702.45 0.00
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF B-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015 �
Site Improvement Bond Quantity Worksheet
Exlating Future Publlc Private Bond Reduction'
Rtght-of-way Right of Way Improvements
&Draina e Facilities Quant.
Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost
ROAD S RFACING (4"Rock=2.5 base 8�1.5"top course) For'93 KCRS(6.5"Rock=5"base&1.5"top course)
For KCRS'93,(additional 2.5"base ad RS-1 $ 3.60 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Overla , 1.5"AC RS-2 $ 7.39 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Overla ,2"AC RS-3 $ 8.75 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,2",4"rock,First 2500 SY RS-4 $ 17.24 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,2",4"rock,Q .over 2500SY RS-5 $ 13.36 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,3",4"rock,First 2500 SY RS-6 $ 19.69 SY 0 0.00 0 0.00 1684 33,157.96 0 0.00
AC Road,3",4"rock,Q .over 2500 SY RS-7 $ 15.81 SY 0 0.00 0 0.00 0.00 0 0.00
AC Road,5",First 2500 SY RS-8 $ 14.57 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,5",Q .Over 2500 SY RS-9 $ 13.94 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,6",First 2500 SY S-1 $ 16.76 SY 0 0.00 0 0.00 0 0.00 0 0.00
AC Road,6",Qt .Over 2500 SY S-1 $ 16.12 SY 0 0.00 0 0.00 0 0.00 0 0.00
As halt Treated Base,4"thick S-1 $ 9.21 SY 0 0.00 0 0.00 0 0.00 0 0.00
Gravel Road,4"rock,First 2500 SY S-1 $ 11.41 SY 0 0.00 0 0.00 0 0.00 0 0.00
Gravel Road,4"rock,Q .over 2500 S S-1 $ 7.53 SY 0 0.00 0 0.00 0 0.00 0 0.00
PCC Road,5",no base,over 2500 SY S-1 $ 21.51 SY 0 0.00 0 0.00 0 0.00 0 0.00
PCC Road, 6",no base,over 2500 SY S-1 $ 21.87 SY 0 0.00 0 0.00 0 0.00 0 0.00
Thickened Ed e S-1 $ 6.89 LF 0 0.00 0 0.00 0 0.00 0 0.00
Page 4 of 7 SUBTOTAL 0.00 0.00 33,157.96 0.00
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
Site Improvement Bond Quantity Worksheet �'�
Existing Future Public Private Bond Reduction• I
Right-of-way Right of Way Improvements
8�Draina e Facilitles Quant.
Unit Price Unit �uant. Cost Quant. Cost Quant. Cost Com lete Cost
DRAINAGE (CPP=Corrugated Plastic Pipe,N12 or EqUivalent) For Cutvert prices, Avera e of 4'cover was assumed.Asaume perforated PVC is same rice as solid pipe.
Access Road,R/D D-1 $ 1674 SY 0 0.00 0 0.00 0 0.00 0 0.00
Bollards-fixed D-2 $ 240.74 Each 0 0.00 0 0.00 0 0.00 0 0.00
eollards-removable D-3 $ 452.34 Each 0 0.00 0 0.00 0 0.00 0 0.00
' CBs include frame and lid
CB T e I D-4 $ 1,257.64 Each 0 0.00 0 0.00 1 1,257.64 0 0.00
CB T e IL D-5 $ 1,433.59 Each 0 0.00 0 0.00 0 0.00 0 0.00
Ce T e II,48"diameter D-6 $ 2,033.57 Each 0 0.00 0 0.00 2 4,067.14 0 0.00
for additional de th over 4' D-7 $ 436.52 FT 0 0.00 0 0.00 18 7,857.36 0 0.00
CB T e II,54"diameter D-8 $ 2,192.54 Each 0 0.00 0 0.00 0 0.00 0 0.00
for additional de th over 4' D-9 $ 486.53 FT 0 0.00 0 0.00 0 0.00 0 0.00
CB T e II,60"diameter D-10 $ 2,351.52 Each 0 0.00 0 0.00 1 2,351.52 0 0.00
for additional de th over 4' D-11 $ 536.54 FT 0 0.00 0 0.00 9 4,828.86 0 0.00
CB T e II,72"diameter D-12 $ 3,212.64 Each 0 0.00 0 0.00 0 0.00 0 0.00
for additional de th over 4' D-13 $ 692.21 FT 0 0.00 0 0.00 0 0.00 0 0.00
Throu h-curb Inlet Framework Add D-14 $ 366.09 Each 0 0.00 0 0.00 0 0.00 0 0.00
Cleanout,PVC,4" D-15 $ 130.55 Each 0 0.00 0 0.00 0 0.00 0 0.00
Cleanout,PVC,6" D-16 $ 174.90 Each 0 0.00 0 0.00 0 0.00 0 0.00
Cleanout,PVC,8" D-17 $ 224.19 Each 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,PVC,4" D-18 $ 8.64 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,PVC,6" D-19 $ 12.60 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,PVC, 8" D-20 $ 13.33 LF 0 0.00 0 0.00 0 0.00 0 0.00
CulveR,PVC,12" D-21 $ 21.77 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,8" D-22 $ 17.25 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,12" D-23 $ 26.45 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,15" D-24 $ 32.73 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,18" D-25 $ 37.74 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,24" D-26 $ 53.33 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,30" D-27 $ 71.45 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,36" D-28 $ 112.11 LF 0 0.00 0 0.00 8 896.88 0 0.00
Culvert,CMP,48" D-29 $ 140.83 LF 0 0.00 0 0.00 83 11,688.89 0 0.00
Culvert,CMP,60" D-30 $ 235.45 LF 0 0.00 0 0.00 0 0.00 0 0.00
Culvert,CMP,72" D-31 $ 302.58 LF 0 0.00 0 0.00 0 0.00 0 0.00
Paye 5 of 7 SUBTOTAL 0.00 0.00 32,948.29 0.00
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
Site Improvement Bond Quantity Worksheet
Existing Future Public Private Bond Reduction'
Right-of-way Right of Way Improvements
DRAINAGE CONTINUED 8 Drainage Facilities Quant.
No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost
Culvert,Concrete,8" D-32 $ 21.02 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,12" D-33 $ 30.05 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,15" D-34 $ 37.34 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,18" D-35 $ 44.51 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,24" D-36 $ 61.07 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,30" D-37 $ 104.18 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,36" D-38 $ 137.63 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,42" D-39 $ 158.42 LF 0 0 0 0 0 0 0 0
Culvert,Concrete,48" D-40 $ 175.94 LF 0 0 0 0 0 0 0 0
Culvert,CPP,6" D-41 $ 10.70 LF 0 0 0 0 0 0 0 0
Culvert,CPP,8" D-42 $ 16.10 LF 0 0 0 0 95 1529.5 0 0
Culvert,CPP,12" D-43 $ 20.70 LF 0 0 0 0 36 745.2 0 0
Culvert,CPP,15" D-44 $ 23.00 LF 0 0 0 0 0 0 0 0
Culvert,CPP,18" D-45 $ 27.60 LF 0 0 0 0 0 0 0 0
CulveR,CPP,24" D-46 $ 36.80 LF 0 0 0 0 0 0 0 0
Culvert,CPP,30" D-47 $ 48.30 LF 0 0 0 0 0 0 0 0
Culvert,CPP,36" D-48 $ 55.20 LF 0 0 0 0 0 0 0 0
Ditchin D-49 $ 8.08 CY 0 0 0 0 0 0 0 0
Flow Dis ersal Trench 1,436 base+ D-50 $ 25.99 LF 0 0 0 0 0 0 0 0
French Drain 3'de th D-51 $ 22.60 LF 0 0 0 0 0 0 0 0
Geotextile,laid in trench, 1 ro lene D-52 $ 2.40 SY 0 0 0 0 0 0 0 0
Infiltration ond testin D-53 $ 74.75 HR 0 0 0 0 0 0 0 0
Mid-tank Access Riser,48"dia, 6'dee D-54 $ 1,605.40 Each 0 0 0 0 1 1605.4 0 0
Pond Overflow S iliwa D-55 $ 14.01 SY 0 0 0 0 0 0 0 0
Restrictor/Oil Se arator,12" D-56 $ 1,045.19 Each 0 0 0 0 2 2090.38 0 0
Restrictor/Oil Se arator,15" D-57 $ 1,095.56 Each 0 0 0 0 0 0 0 0
Restrictor/Oil Se arator,18" D-58 $ 1,146.16 Each 0 0 0 0 0 0 0 0
Ripra , laced D-59 $ 39.08 CY 0 0 0 0 8 312.64 0 0
Tank End Reducer 36"diameter D-60 $ 1,000.50 Each 0 0 0 0 2 2001 0 0
Trash Rack,12" D-61 $ 211.97 Each 0 0 0 0 8 1695.76 0 0
Trash Rack,15" D-62 $ 237.27 Each 0 0 0 0 0 0 0 0
Trash Rack,18" D-63 $ 268.89 Each 0 0 0 0 0 0 0 0
Trash Rack,21" D-64 $ 306.84 Each 0 0 0 0 0 0 0 0
Page 6 of 7 SUBTOTAL 0 0 9979.88 0
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
Site Improvement Bond Quantity Worksheet
Existing Future Public Prlvate Bond Reductlon'
Right•of-way Right of Way Improvements
8�Draina e Facilities Quant.
Unit Price Unit Quant. Price Quant. Cost Quant. Cost Complete Cost
P KIN L T ACING
N o.
2"AC,2"to course rock&4"borrow PL-1 $ 15.84 SY 0 0 0 0 0 0 0 0
2"AC, 1.5" to course&2.5"base cou PL-2 $ 17.24 SY 0 0 0 0 0 0 0 0
4"select borrow PL-3 $ 4.55 SY 0 0 0 0 0 0 0 0
1.5"top course rock 8 2.5"base course PL-4 $ 11.41 SY 0 0 0 0 0 0 0 0
UTILITY POLE STREET LIGHTING U61i ole relocation costs must be accom nied b Franchise Utlli 's Cost Statement
Utility Pole(s)Relocation UP-1 Lump Sum 0 0 0 0.00 0 0.00 0 0.00
Street Li ht Poles w/Luminaires UP-2 Each 0 0 0 0.00 0 0.00 0 0.00
W E-1 -IT M
Such as detention/water uali vaults. No.
Control Structure additional cost WI-1 $ 500.00 Each 0 0.00 1 500.00 0.00
cost for catch basin,frame,cover WI-2 0 0.00 0.00 0.00
included above in CB,T pe II,60" WI-3 0 0.00 0.00 0.00
W I-4 0 0.00 0.00 0.00
W I-5 0 0.00 0.00 0.00
W I-6 0 0.00 0.00 0.00
W I-7 0 0.00 0.00 0.00
W I-8 0 0.00 0.00 0.00
W I-9 0 0.00 0.00 0.00
wi-�0 0 0.00 0.00 0.00
SUBTOTAL 0.00 0.00 500.00 0.00
SUBTOTAL(SUM ALL PAGES): 0.00 0.00 136,961.17 0.00
30°/CONTINGENCY 8 MOBILIZATION: 0.00 0.00 41,088.35 0.00
GRANDTOTAL: 0.00 0.00 178,049.52 0.00
COLUMN: B C D E
Page 7 of 7
EXHIBIT A-7
Unit prices updated:2/12/02
Version:4/22/02
REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date:04/15/2015
; King Cour�ty
King County Districts and Development Conditions for parcel 2123059057
Parcel number 2123059057 Drainage Basin Lower Cedar River '���.�
Address 1601 LAKE YOUNGS WAY SE 98058 � : �
Jurisdiction Renton �s�- _,�,` �
Zipcode 98058 PLSS SW-21-23-5 +`� `'f�_ �-
-- _ _ _
Kroll Map page 371 Latitude 47.46466 • _ �- -� .
Thomas Guide page 656 Longitude -122.177t9 ��, ' ,, �
_ _— _ — ___ —_
- Electoral Districts
---- - — - ----_ _ _ — __
— RNT 11-2581 Fire district does not apply
District 5,— Water district does not apply
(206)477-1005 � Sewer district does not apply
Congressional district 9 Water&Sewer distrid dces not apply
Legislative district � Parks&Recreation disirict does not appty
School district — Hospital district Public Hospftal District No.1
Seattle school board district doe8 not apply(not in Seattle) Rural library district Rural King County Librery System
District Court electoral district Southeast Tribal Lands? No
- King County planning an�designations _ __
— NA,check with jurisdiction does not apply
None — No
does rat apply does not apply
— Urban — 335
dces nal apply does not apply
Soos Creek Forest Production district? No
Coal mine hazards? None mapped Agricultural Production district? No
Erosion hazards? None mapped ? None mapped
Landslide hazards9 None mapped 100-year Hood plain? None mapped
Seismic hazards? None mapped Wetlands at this parcel? None mapped
20.1 ppm to 40.0 ppm
EstknabU Arw�k ConaMntlon In Soil
This report was genereted on 4/13.�2015 8:57:47 AM
Co�tact us at
�2010 King County
EXHIBIT A-8
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Information Technology-GIS
mapsupport@rentonwa.gov Aquifer Protection
Printed on: 11/12/2014 ��� Renton City Limits
Zone 1
Data Sources: City of Renton, King County � Education '��
r:'.
This document is a graphic representation, not guaranteed
.��;� Fire Station Z011e 1 MOdlfled
to survey accuracy, and is based on the best information Q Valley Medical Center Zone 2
available as of the date shown. This map is intended for
City display purposes only.
��...
Coordinate System:NAD 1983 HARN StatePlane Washington NoRh FIPS 4601 Feet Ci of
ty r �
..�"''� r y_. �
Projection:Lambert Conformal Conic ,,
A � �" .i'� � �•�
Datum:North American 1983 HARN EX H I B IT A�.7 --'-~-�-^��""�"� �' �� � �1' t ��� �� ; , ;'
ST��t:��1 D�;�INAG� R�PORT
f�r
T���FANY PARIC ELEMENTARY SCHOOL
RENTON SCHOOI,DISTRIC`T
R�NTON, WA
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Frepared By:
WARNER ENGINEERING
5122 Olym�>ic Dri�e NV4', Suite B204
Cxig Harbor, WA 98335
{253) 858-8577
Deceznbe�� 2U, 1999
Job Numi�er�, dQ2021
�
�
EXHIBIT A-10
�
f
TABLE O�� CnNTENTS
I, Praject Uver��ie��J
II, Existing Co�ldifio��s S�mm.ary
III. De�eloped Canditions Summar}�
�V. nisc�ssion of Core l�eqraire�nents
W'. Discassion of Sp�ci�l Reqi�ire�nents
�'I. ConErey�a�ice Syst�7n .����lysis a�id DeSig�i
�%!I, �1�ater Qt€a:ity ,4n�.Jysis anc�i i�es;gtl
VII�, Appencl'zces
Appendix A- Vicinity h�.ia_�
:4ppei�dix B - SCS Soil NI:�p
Appendix � - Predeveloped Basi��Ivlap
��ppendix D - Postdeveloped Basin iv�ap
App�idix E -Isoptuvial Maps; 2-, lU-, 100- �'caa•
�ppendix F - R�tnoff Caefficients
Appendix G - VS�aterworks progra�n Calc��latio�is
Ca��eyance
«later Quality
Anpe�7ciix I-� - Flowll�iaster Calcu�atioils - �Vater Qu�.tit��
:�p�ci7dix I - Tecl�iic�f Infonnation Report�'orksheet
Ap��cnJit T- Geo€ec�':u3ical Engincer�rxg ,Stuciy
1X, l�efe�'encus
�
'i`i f�any�Pa:�k F�len:et:tary, Ret�t�z�, ��T�1
I. PROJECT OVERVIEVti'
This p�'fl�(:Ct W1I1 COf]5h�uct a ncw clen�antaty sc�lool bui�diiig on the current scliool site.
'�'he �xisting buildings, except onc, will bc dEmolishec�, The existing parking areas and
�lay�ields will be demolisl�ed. New play�clds and parking lots will be eonstructed. Tl�e
10 acre site is bouikded on the southwest by Dakesdale Avenue SW,on th�;west and �iorth
by La1ce Yo�tngs Way, and on the e�st �nd saut3� by resic�entiul dev�lopmeni:. The proje�t
encompasses develo�ment of ihc entire sitc, The work shall also incl��de one ne�v
driveway access fro�n Lake Youngs Way, and la�idscapiiig areas. See A�Spendix A for a
vicinity ma��,
II, EXISTING CO�€D1'I`iONS StiMMARY
�QILS
Soils on #he site are ident:�'iet� by tt:e SCS Soil Survzy for ki�1g C�t:��ty' as Arents-
Alderwooc� (AinC}- see Appcndix B for SCS Soils inap, The SC;S description for this
soil does not inatcl� tllc aetuai soil logs d�i�e foa• ihis site, The existing site soils a��e
inainly �ray, btack and brown sitty Sancis ��d gravels with accasic�nal organic mariez�,
Therefore, based upon the geotec;hnical ciaia «�e ulill assume tl�at a hydrelogic soiE oroup
C soil is prescnt ou the site,
EXISTING DEV'�LOPME�]T AND DRA.I�AGE
The sife curreiitly is comprised �f the element�� sclzool buildings, pGr�ir�� are�.s,
playficlds, nees �tnd brush a�•eas. T13e building area of the site is relati�ely fl�ct, There is �
treect knc�ll wit�k steep slopes and a vegetatcd natura! bcini aion� tlie no��th pF•operty li�ie
adj�tcent to Lake Youn�s Way, 'I'here is a total vcrtical relicf of acrass t�ie sitc of about
]4 fect, not incluc�ing the knotl, There is an existing drainage system for the school and a
detentiou systezn for one of the buildinbs, These syst�ns tie into an �xisiing 6U" starm
pipe which runs throu�h the site. See the Pre<ler��eloped Ba�in P��ap, Appendix C,
Orr-�ITE AN�Dp'4VNSTREAM DRAINAGE
'There is no off-site drauzdge onto this site. See the I'redeveloped B�siii Map, A����endix
C.
S�orn�watcr fi'on3 tl�e site #7ows to a 60" storm pipe. This system continues to tt3e
l�or�l�west approximately 70� feet where it diseliarges �o a swale near the intersection of
Lake Youngs V4'ay and Royal Hills Drivc. It contiilues in the swale �or ap�roxin�ately
,
�
Tif9<�ily P«rk clemcntai-y; Rejtf�n, l�b'_�1
?OU £eet wtlere it crosses u��der Royal Hi11s Drive, lt cont:nues i�o�-t3�ward appro�in3atelv
130Q feet in a sinall tributary to tl�e Cedar River,
III. DEVEI,OI'ED CONDI'1'IONS SUIVIMARY
ON-SITf DEV�LE�PMENT AND DRA.INAGE
Ca1cE�lafion sliow that the ii�crease in peak runoff for the 100-year siorni i5 1Css than 0.5
cfs tl3erefors tlus project is exeir��t from additioii�i detention require�uents. ��Vater
quality, however, is still rcq��ircd.
Stor�n c�rainage for the sile will be as foltows:
Tlie storm wa.ter from tiie parking areas and bus loop will be collected ul a series
of catch basii�s and pipes and wilt flow to the Uiofiltratioiz swale. Thc bioswale
will discharge to t�e GO" storm pipe which rttns #hrough the site, Tlie biiilding
downspouts and fo�ndation c�rains will be piped �l�raugh a separate storni systcm
with a separate conr�ection io the 60" stortn �ipe. 'T'l�ere is an existing detention
system that wilt be c�emolished, An eq�;at ait3a.�nt oi�c�etentioil �vill be installed iu
t�le new systenl.
Tlie biofi�ti•atio�i swale will pror�ide £or w�ater qiiality for tilose areas subjeci to veluciilar "
lraffic. See the Postdevcloped Basin Map,Appendix D.
{�FF-SITE IMPROVEMENTS ArID DRAtNAGE
No off-sitc i�npro�emeFits are��roposed.
I�T. DISCUSSIDN UF COR�; REQL'IH�:#�IE�YTS
C��re Rec�uirerne�il #1- 17ischarge at liie Natii3•ai Locat�on
As disc�issed in EXISTING CONDITIOI�S S11�MA.RY aUove, is sitc curre��tty drains to
the 60" stort�i��ipe. The proposcd stocrn systccns will co�itinue to dFseharge to tlxis pipe.
Gore Reqttit�ement�2- Off-Site A�lalysis
I�o offsit� drainage enters the site. See Appeiidix C- Prede�veloped Basin iVla�s. A Le�ei
One Downstream Analysis is desc��ibed in the Existing Conciitions �ummary, Tliere are
no knawn drainage problems iii this systcin,
a
Tiffar�y P�rk�leFne�zta3�y�,R�nian, V4'A
' r R uireine�it��3- Runvff Control
This site is exernpt fram On-siEe Peak Rate Runo�'f Contrc�l because tlze incz�ease in the
p�ak flow for the iU0-year stonn is less than 0.5 cfs,
Core Requircnlent#4- Convevarice System
Tlie project sto7�n syslem will coiivey the sitc 104 year design storm.
Core ReqL}trement#5-ErosionlSeclimentation �ontrol Plan
A�t Erosion and sedimentation plan will be de�elopcd far tliis site as outlined in tlie ICir�g
Cou�ity Surface Water I)esign Ma�ival. Filtcr fences, temporary scdiment pvnd, CB i��lct
prote�tifln, C�i iizlet sedi�nent trap and canstruction entrances wili be installed.
Core Rec�uiren�ent#6-lVlaintena�lce and 4peration
Niaiiitenance and o�eration of atl of the stormwatcr systerri on this site will be the
��esponsibility of ilie ite�iton School District.
C�re R�uireinent�7-Bonds and Liabilitv
Bonds anct liability insurance v�ill be providect by the Renion Sehool Disliict.
V. DISCUSSIQN OF SPEC�AL REQUIREMEi�TS
S�ecial Reqi�iremen#.#l- Critical Drainage Arcas
The City has not ir�aicate�i t�at tl�is site is in a critical drainage basin.
�
St�eciai Reai�iremen�#2- Gomoli<tnce With Existi�i�Master Draina c�an
There is r�o existing known Master Drainage P1an that includes thzs site.
S�ecia[�et�uire�nent #3- Conc�itions Rec}uir�n� a Master Draina�e�
This project site does nc�t trigger any of the thresholds that rec�uire a Master Drainage
Plan.
5
'I'ii�:�tty �'ark Ele�nenta_-y, R,;nion, WA
Saeciat ReqtFirement #4- A�ontec� Basin or Coininu��ity P:a1ts
'I,lle site is i�ot in any k��owzl ac�o}�ted basi�nr community ptan�,
�ecia�Req�iremezlt #�5- S�yecial Water Ouality Cvntrflls
Tl�is �t'oject does not trigger special water quality� cc�niroi�.
Special Requiz'enleiit#6- Coa�esci���Plate QiIfV4"a€er ��par:�tars
A cnaleseing plate oillwater separator is not requireci,
Sl�ecial Reqt�irement #7- Closed Depression
There are no closecf ciepressions on the��rojeet site. .
S�ecial Re �ire�nent 8- Use n�'Lakes Vtretla�ids o� Closec� De ressians for Pea�C. Ruz�o�f
Contro 1
Th�.prniect��il� ��rt use a la�e, ����tla:�d or clo�e<i depressiol� fc��� �>eak i•ti�iof:�col�t��ol,
SU�.ial Re���i:ezne��t�9- Delineation c�f 100 Ye�r Fioodplain
T��e site is not within the 10�-ycar flood plai�i,
Sbeei�l Rectuirement#lU- Flaoc�Pt�otec�ion Facilitiz;s ('or`�'vpc 1 a��d ? Streanis
`I'I�is project is not near a t�pe 1 nr 2 strean�.
S�recial Reyuireinent#I 1- Geotechnical Analvsis and Report
A geotec�u�ical analysis and report is incl�id�d as Ap��4n�ix J.
Snec�al Requirernent #I2- Soils An�l sis�and Re��ort
Soils re�art is included as Appendix.i,
Special R�quiremeni�#13 - Aquifcr Rechar��. and Protec�ir.n rlrcas
This site is not:n an aquif�r recharge or protection area.
6
?"iffa.�y Park Elenl��ltary, Rentoil, tixr.t�
Vi, CUI�VEYANCE SY�TEM ANALY'SIS AND DESIGN
See Appcndix G fo�• basin information. St�inrna�-ized below ax� the prelirninary design
ciata:
Constants
PZ �2.0�n. Soil Type C
Plo =2.9 in. CN =BI.�woodec3
P,�a= 3,9 iti, CN =$G.0 shor# grass/lai3c�sca�irtg
CN �-98.(3 inlpervious
Conveyance calc�l�tions are inciti�ded in Appendix I3.
VII, WATER Qi1Alf1'�Y ANALYSIS AND D�SIGirt
Tl1e bip�lii•ation swalc is desi�ncd per King County standards. The water quality sto��nl
is the peak �low from thc developcd 2-y�ar stor�n event. See Appe��dix G a�id Ap�endix
H for computer calculations,
i '
i
T1��31]y Park Elemen:afy, Rento.3, VLrA �
v. Arr��vn�ccs
Ap��endix A - Vicinity Map
Appendix B - SCS Soil Niap
Ap�endix C - Predeveloped Basin Ma�
Appendix ll - Postdcvelopeci Basin Map
Appenciix �- Isopluvial Maps: 2-, 10-, 100-Yct�r�torni Event
Appendix F- RtEnoff Coef�ci�nts
Ap�eiidix G- VVaterwocks �rogram Calcu�ations
Conveyance
Water Qualiry
Appendix H - Flowmaster Ca�c«lations - Water Quality
Appe�ldix I -T$chnical Infonnation Repoit Worksheet
Appendix J- Geotechnicai E��ginccring Study
8
Tiff�ny Par�Elementary, Renton, V�'A
VI. ItEFERENCES
I.
Soil Su��vev af Ki��� Ca�ntv Area, Wasl�itlgton. United �tates Dcpartment of
A�cicult�ire, �ail Ga�iseivalion Sei�ice. November 1973.
7I,
Surface Water T7esi�n Manual, Kin�itv, V+Iashin�, King Cot�nty Departmeni
of I'ublie �hlorks. JaniEa�y 199�. Revisec�N��em�er 1995.
�rl.
Waterworks. Software fQr Hyc�rolo�y, Ve�sioj� �,I2e. Engez�zo�is Systerns, lnc,
Seattle, VVashingtfln,
IV.
Flowinaster. ��ersio�i 4.1, I�aestad Methoc�s, I�tc. WaEerbt��•y,
Connecticut.
�
9
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GilipE TO I�iAPPIMG IiNITs
E�ox a fu11 dcscziption of a mapping iu►it, rea� i�oth the descri�tion of the �xpping unit and that oP the sail
series to which t]►e mappfng �it belflngs, See tab2e 6, page 70, for descriptians of woodland grossps. Other
in£ora�ation is given in .tables as foliows:
Acxeage anci extent, table 1, page 4. Town and eountry planni�ig, table �3, �age 57.
Engineering uses a£ the soils, tables 2 and 3, Recreational uses, table 5, page 64.
}�ages 36 th�ough 55. Pstimated yields, tab2e 7, page 79.
A'oodland
Describcd Capahilzty unit gro�p
Map an
symbot Atapping unit ��age 5ymbal Page Symbo2
Ag8 Alde�twaod grarrelly sandy loarn, 0 to 6 percent slopes---------- 10 IVe-2 76 3d2
AgC Aldezwood gra�elly sa�idy loarn, 5 to 25 pexcent slopes--------- 8 IVe-2 76 3d1
Agb Aldezxoad gravelly sandy loam, I5 to 34 percent slo�es-------- ]0 VIe-2 78 3d1
1�cF Aldezwt�od ancl Kitsap soils, very steap------------------------ 10 VTIe-1 78 2d1
Am13 Arents, Aldcx�aood materiai, 0 to b �excent slopes 1/---------- 1Q IVe-2 76 3d2
�AmC Axa�ts, Alden�ood materi.ai, G to I5 percent slopes 1l--------- 30 1Ve-2 76 3d2
An Rrents, Everett material 1/----------------------------------- lI I�'s-1 77 3f3
i3e� Seausite gravelly sandy loasn, fi to 15 gercent slopes---------- lI IVc-2 7b 3d2
acD Beausite b�avelly sandy laam, 15 ta 30 percent siopes--------- 12 Vle-2 78 3dl
�ef� Beausite grav�lly sandy loam, 40 ta 75 percent slopes--------- t2 UIle-1 78 3dI
Bh Aelling}iam siit loam------------------------------------------ l2 IIIw-2 7G 3w2
Br Briscot silt loa�n--------------------------------------------- 13 YIw-2 75 3wI
Bu Huckley si�t Ioam-____..--------------------------------------- 13 IITw-2 7b 4w2
Lb Coastal beaches----------------------------------------------- 14 VtIIw-i 78 ---
lia Earlmont silt 1oa�n--------------------------------------�----- 14 lIw-2 75 3w2
Ed Ldgewick finc sandy laam------------------------^------------- i5 113w-1 75 2a1
F.v9 ��erett gravelly sandy laani, 0 t o S percent slopes------------ IS IVs-1 77 3£3
EvC Gverett gravelly sandy laam, 5 to I5 �ercer�t slopes----------- 16 Vis-I 78 3f3
EvD Everatt gxavelly sandy loam, 15 to 30 percent s2opes---------- 15 V1e-1 77 3f��
EwC 'EvereYt-Aldexi.eod gxa�elly sa3�dy Ioaeis, b to 15 percent
slopes----------------^--------------___-------------------^ 25 VIs-1 78 3f3
1nA Tndianala lnxmy fine s�nd, 0 to 4 Ftexcent slapes-------------- 17 IVs-2 77 As3
InC lndi�aia loamy fine sand, d to ]5 �iercent siopes------------- 25 1Vs-2 77 4s3
TnD Indianala loamy fine sand, 15 to 3D pexcent slopes------------ 17 VIa-1 76 4s2
K�B Kitsap s3lt 2oam, : ta 8 percent siopes---------^------------- I7 IIIe-1 75 2d2
KpC Kitsap siit loafn, 8 to 1� gercent slopes---------------------- 18 TL'e-1 76 t�2
[cpD Kitsap silt loa:n, 15 ta 30 percent slapes--------------------- 18 VIe-2 78 2di
KsC Kla�s gravelly Ioamy sar��i, 6 to IS percent slopes------------- 18 Vls-1 78 3£I
Ma Mixed al]uvial 2and-----------^------------------------------- 18 VJw-Z 78 Zoi
i�eC Neilton very gra�eliy 2aamy sand, 2 Ca 15 pexcent slopes------ 19 VIs-1 78 3f3
Ng Newberg silt laam-----------------^--------------------------- 19 IIw-1 74 201
AGc Nooksack sidt loam--^--------------------^-------------------- 20 1Tw-1 74 20:
No 1:osssa sandy loam---------------------------------------------- 20 IIIw-3 7b 3w2
Or Orcr�s peat-----=--- -___ ----------^-------- 2i VFITw-1 78 ---
---------------- ----
6s Oridf a silt loam--------------------^------------------------- 21 llw-2 75 3xI
OvL' 4vall gxavelly loam, 0 to 15 pexcent slopes------------------- 22 IVe-2 76 3d1
OvD Ovall gravelly loam, l5 to 25 peresnt s�opes------------------ 23 Y1e-2 78 .idl
Qvfi Ova]1 gz�aveliy laam, 40 ta 75 percent slopes------------------ 23 VIIe-1 7$ 3d:
Pc Pi.ld�uck 2aamy fii�e ss�3d--------------------^----------------- 23 VIw-I 78 2sI
PEc Pilchuck £ine sandy loam-------------------------------------� ?3 xVw-1 7G 2s1
Pu Puget si�ty clay Iosnj----------------------------------------- 2d II1�-2 7b 3wZ
Py Puyallug fzne sandy loam-------^-------^---------------------- 2d 3Iw-1 74 2oI
RaC Ragnar fine saridy loma, G to I5 percent slopes---------------- 25 1Va-3 77 dsi
Rab Ragnar £ine sxndy loam, 15 to 25 ��xcent slopes--------------- 2b VYe-2 78 4s7.
RdC Ragnar-indianola association, sloping: I/---------------------- 26 ____---- -- ---
Aagnar sail----------------------------�-------------___ __ YVe-3 77 4s1
Fndianola sail------------------------------------------- -- IVs-2 77 4s3
RdE Ra�,m ar-Indianola association, moderately steep: I/------------ 25 -------- -- ---
Ra�ar soil--------------------------------�_------------ -- VIe-2 78 4s1
Indianoia sail---------------------^-----^--------------- -- VIe-� 77 �s2
4
E
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tF. 3. OOVSItiQMETIT PAIN713iC OFFICS:IST� D� 988•26t
STQRMWAT�R MA.tlACwME�T MA3iUA1. FOR T�E pUGET SOU�D SASZ�
Tabk BI-t,b Hydrologi�Soif Group�foaSoili in the PuYat 5ound Baaia
Hyd�loYic Soil 3iydrologia 5oil
Soil Type Group Soil T��pe Grou¢
Apncw C Cot.er C
�� B Custcr ND
tiu C €?�bo� NA
AJlerwood C E}elphi 1�
Arenu� AJderwr,od H Dick t�Ef�
,lseau,Evercq 8 Dim.i D
A�hoe 8 bupoot D
8x�aa,iu a F�rlmonc C .
g��� C Fdyeaick C
&umg�rd $ �d 8
6eauaiie $ Eiwelt B
Belfast C �quatul B .�.
&11ingAam D Everett A
6eflingh�m vari4nt G Eveno� �
Boistfon B Galvin � �
8ow D Qstchell A
grika 1� Oiics �
Huck3ay C Godftty D
Bunker 8 Grcenw�ler A
CaQcy C Grove C
Cari�borg ND Hacuirx • C
Casey ND Nartni� N�
C+scolary C Hoh ��
Csthun S Hoi:o NA
Centr:ti� 8 Haodapon I�II3 �
Chchali� :: a Eio4$dt3 G �
Checaw A Noypue N13 �
Cinebas B Hual N�
CIt11am C Indi+noli N17
i
Clayton $ Jorui $
Coasul beschea Ysri�bla 7umpa �¢
Kapowiin C/D 1{ilaloch C
}C�wiu C Rer�ton n
Kikhi� C Repubkie g
Kitsap � C Ftivarwa�h wri�ble
. }U�ua TIU Rober C
Klarx f1p Silal C
I..aua C Salkum �
L.eba,q $ Sammetttieh p
� Luavrii ND San luen Np
Lynnwood ND Scamman �
Lvscair ND Schneider B
Mal C Se.tUe D
Maoley 8 Sckiu �'b
Aiuhel S Semishmoo p €
Mavtown C 3haicar � `
�!
hStKciusa D Shsno a i�
Mc�furtay ND Shdton C "
hfelbourne 9 Si C
l+fenu} ND Sintleil �
Mixcd Alluvial va«able Skipop� B �
MoEcon 8 Skylcomiih B ;
' Y�tukil�eo C/D Stuhopish M� �
Na{'f 8 Sna'�on�sh �7 >
f�'+cyr A 5olduc B
Nalioru! ND So11ek� Hp
Neitcon JI Sp�aa �
II_—�-9 FESR'3ARY. �992
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. STORMWATER MANAGEMENT MANUAL FOR THE PUG�T SOUND $ASIN
Table ITI-1.3 &CS Wsatern Washingtan Runoff Curve Numbere
{Published by 5CS in 1982) Runoff cuzve numbers for selected agricultura2,
suburban and uzban
land use for T e lA rai�fal2 distribution, 24-hour atorm dura�ion.
LAND USE DESCRIPTIaN GURVE NUMBERS 8Y
HYDROL4GIC SOTL GROUP
A 8 C D
Cultivated �and{J.y : winter candi�ion 86 91 94 95
Mountain open areas: 3aw grawing brush & c�raealands 74 82 89 92
Mea€3ow ar paature: 65 7a 85 89
Wood or foreat l.and: undzsturbed 42 64 76 81
Wvod or foreat Iand: young second qrowtt� or brush 55 72 81 86
orchard: ' wiEh covQr cro 81 II8 92 94 .
Op�n spacea, lawns, parks, golf ccsurses, certzeteries,
iandscaping.
cood condition: c}rass cover on �'15� of the 68 80 86 90
area
Fair condition: grass cover on Sa-75� of 77 85 30 92
the �rea
Gravel roada & parking lots� 76 8S 89 4].
Di.rt roads & arkinq lots: 72 82 87 89
Im�ervious surfaaes, pavement, roofs etc. 98 98 9$ 98
O en water bodiss: lakes, wetlande, and9 e�c. 1�0 3.0� 100 100
Single fami]y residen�ial(2y :
Dwelling Unzt/Grvsa Acze gimpervious(3) Separate curve number
I.0 AU/GA 15 shali be selected for
�.5 Dt3/GA 20 pervious & impervious
2.0 DU/GA 25 porL•iong of the si��
2, 5 DU/GA ' 30 or basin
3.0 �U/GA 34 �
3. 5 DiJ/GA 38
4.0 t�U/GA 42
4.5 DU/GA 46
S,0, Dt![GA �1.8
S:�a• DUfGA 5Q
6.0 DU/GA 52
b.5 D[3/GA 54 .
�.a Du/c�, �s
PUA`s, condos', apartments. �impervious
comrnercial ?ivainesses & must be
induatriai .area� computed
(1} �or a�mare_detail.ec3�"de�crip�S.on ,,o:f,, aqricul.•tural larid use curve nucnbera refer
to Natidn�i'�ngineeri�g Hanc�book,� Sec.:•+#, Hyd,rv,lqgy, �Chapter 9t August 1972.
(2) Assumeg zoti£� an�l' driveway runaff is directed. inEa str��t/storm system.
(3} The remaining gervious areae .�lawn) 'are co�ssidared to be in �good
conditian` €or these curve nutmber�.
_ rII-1-12 . . . . F�BRUARY, 1992
AF'PEl�DIX F
�4/].3J99 8: 42:50 am Warner �ngineering pa�e 1
Pr��iminary Storm Ca1c�
T�f�any Park �lernentary
BASIN S�]I�IMARY
BASIN �D: postl0 NAME:
SBUH METHOD�LOGY
TOTAL AREA. . . . . . . : 9.99 Acres BASEFLOWS: 0.00 c�s
RAINFALL TYPE. . . . : KCZ4HR PERV IMP
PRECTPTTATT��f. . . . : 2.90 inches AREA. . : 5.15 Acres 4 . 8�# Acxes
TIME INTERVAL. . . . : 10. 00 rnin CN. . . . : 85.52 98 . Q0
TC. . . . . 10. 00 ma.rt 5.00 ma.n
ABSTRACTION COEFF: Q. 20
PEAK R�►TE: 5.33 cfs VOL: 1.7�4 Ac-ft T�ME: 470 min
BASTI�F TD: n�st�00 NAME:
S�UH a-�';'H��€}�C}GY
TOTAL AREA. . . . . . . : 9 .9� Acres BASEFL�WS: O .Q4 c£s
RAINFALL `PYPE. . . . : KC24�iR �ER'EI zMP
PRECTPITATION. . . . : 3.9Q iriches AREA. . : �. :�..� Ac�es 4. 8� Acres
TIME INTERVAL� . . . : 10.00 rnin CN. . . . : 8�. 52 �8. 00
TC. . . . . lo. Do min 5. D0 �in
ABSTRACTION COEFF: 4. 2�
PEAK RATE: 7 .76 cfs VOL; 2 . 51 Ac�ft TI�fE: 470 rnin
BASIN ID: post2 NAME:
S�UH METHaDOLOGY
TOTAL AREA. . . . . . . : 9.99 Acres BASE�LOWS: O .OD afs
i2l�INFALL TYPS. . . . : KC24HR P�RV IMP
PRECIPITATION. . . . : � .�0 inches AREA. . : 5.15 Acres 4.8� Acres
T�P�E �NTERVAL. . . . : 10. 00 min CN. . . . : 85.52 98.00
TC. . . . : �0.00 rnin 5. 00 min
A�S�'RACTTON C4EFF: 0.20
PEAK R�1TE: 3 .23 cfs VOL: 1.07 Ac-ft TII++I�: 474 min
BASIN ID: pt�st5mo NAME:
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 9 � 99 Acres BASEFF�WS: 0. 40 �fs
RATNFALL TYPE. . . . : KCZ4HR PERV iMP
PRECIPITATI�N. . . . : 1.28 incY[e� AREA. . : 5. 03 Acres 4.96 Acres
TIM� ZN`I'ERVAL. . . . : 10.04 min CN. . . . : 85. 52 98 . ��
TC. . . . : 10. 00 min 5. 00 min
ASSTRACTION CO�F�': 0.20
PEAK RATE. 1. 71 cfs VaL: 0. 58 Ac-ft TTME: 470 rnin
�os} to�a - P r��ae .. 'Z.`t t, - '1.2.8 - C�,�t 8 � t�.S b
� • 1 �� v�l SJ1 `�Ly`1 1 ����i �L/�
APPE� D�X �
10J13/99 8: 42: 5Q am War�er Engineering page 2
Preliminary Storm Calcs
�iffany Park Elementary
BASIN SUMMARY
BASI� ID: pre10 NAME:
SBUH �ETNO�LOGY
TaTA� AREA. . . . . . . : 9 .99 Acres BASEFLOWS: 0. 00 cfs
RAINFALL TYPE. . . . : KC24HR PERV IMP
PR�CIP�TATION. . . . : 2. 90 inches AREA. . : 6. 00 Acres 3 . 99 Acres
TIME TNT�RVAL. . . . : 10.Q0 min CN. . . . : $4. 80 98. �0 �
TC. . . . : 10. Q0 mi� 5.00 min
ABSTRAC�I4N COEFF: 0. 20
PEAK RATE: 4 .89 cfs VOL: 1. 53 Ac�ft TIME: 48� min
BASIN ID: prel0a NAME: �
SBUH METHOD�LOGY
T�TAL AREA. . . . . . . : 9 . 99 Acres BASEFLOWS: Q.O� cfs �
RAI�FALL TYPE. . . . : KC24HR PERV T�P
PRECIPSTATTON. . . . : 3.90 inches AREA. . : 6.�0 Acres 3. 99 Acres
TSME �NTERVAL. . . . : 10. 00 min CN. . . . : 84 .80 98. Q0
TC. . . . : i0. 0a min 5. 00 min �
ABSTRACTION COEFF: 0.20
P�AK RATE: 7. 28 cfs VOL: 2 . 39 Ac-Pt TIME: 48� min
BASS� ID: gre2 NAME: �
SBUH METHflBOLOGY
TaTAL AREA. . . . . . . : 9.99 Acres $ASEFLOWS: 0. 00 cfs �
RA7NFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATTON. . . . : 2. Do inches A�2EA. . : 6. 00 Acres 3.99 Acres
TTME INTERVAL. . . . : 10. 00 min C[�. . . . : 84. 8� 98. OQ •
TC. . . . : lfl.00 m�n 5.�o min
ABSTRACT�QN C�EFF: 0.2�
PEAK RATE: 2 .8b cfs VaL: Q.98 Ac-f� TYME: 470 min
12/2�J99 9: 5�:20 am Warner Engineerinq page 1
TIFFANY PARX ELEMENTARY
CONVEYA�CE CALCS
100 YEAR STORM EVEIdT
_-���-_---�_���.�.�_---___--�------_--=�-�-_---__�����..._-----.__-_-__�
BASIN SUMMARX
BASTIV ID: AD01 NA�+tE:
SBLIH METH�OflLUGY
T�TAL AREA. . . . . . . : 0. 10 Acres BAS�FLaWS: O.DO cfs
RAINFALL TYPE. . . . : KC24HR PERV TMP
PRECIPITATIot�. . . . : 3 .90 inches AREA. . : O .oO AGres 0 . 10 Acres
TIi�iE INT�RVAL. . . . : 10.00 min CN. . . . : 8&.00 98 . 00
TC. . . . : 1�.D0 ma.n 5. 00 min
ABSTRACTION COEF�': 0. 2�
PEAK RATE: 0. 10 cfs VOL: 0. 03 Ac-ft TIME: 470 �ttin
BASI[d Id: CBO� NAME:
SBLJH METHODOLOGY
T�TAL RREA. . . . . . . : 0. 00 Acres BASEFL�WS: 0 .00 cfs
RAT1+1�'ALI.,, TYPE. . . . : KC24HR PERV IMP
PRECTPITATTflN. . . . : 3. 90 inches AREA. . : 0. �0 Acres 0. 0� Rcres
TTME �NTERVAL. . . . : 1t�. 00 tt13.71 CN. . . . : 8b. 00 98. 00
TC. . . . : 3.0. �0 min 5. 00 min
ABSTAACTIflt+1 COEFF: 0. 20
PEAK RATE: 0.00 cfs V4L: 0. 0{� Ac-�t TTME: 0 min
BASIN �D: CB02 NAME:
SBUH METHODflL4GY
TOTAL AREA. . . . . . . : 0. 01 A�res SASEFLflWS: O .DO c�s
RAII�I�'ALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3.90 inches AREA. . : 0. 00 Acres a. 01 Acres
TIME IN`I'ERVAL. . . . : 10.00 3maZ't CN. . . . : 8G . 00 98. 00
TC. . . . : 10. 0� min. 5. 00 �1tir�
ABSTRACTI�N COEFF: 0. 20
PEAK RATE: 0.01 cfs VOL: 0. 00 AC�ft TTME: 470 min
BASTN �D: CB03 NAME:
SBUH MET�iOD4LOGY
TOTAL AREA. . . . . . . : T. 70 Acres BASEFLOWS: 0 . 00 cfs
RAINFALL TYPE. . . . : KC24HR PERV IMP
�RECIPITATI4M. . . . : 3 . 90 inch�s AR�A. . : 0 . 00 Acres �. 70 Acres
TIME INTERVAL. . . . : 1fl. 00 min CN. . . . : 86 . 0� �B. Oo
TC. . . . . 10 . 00 min 5. 0o min ,
ABSTRACTIDI�f COE�'F: t3. 20
PEAK RATE: 3. .74 cfs VOL: 0 . 52 Ac-ft TTME: 470 min ',
�2/20/99 9 : 50: 20 am Warner Engineering page 2
TIFFA�Y PARK ELSMENTARY
CONVEYANCE CALCS
100 YEAR STORM EVENT
BAS IN SUNIMARY ,
. I
BASII� ID: CB04 NAME.
SBUH METH�f30LOGY
T4TAL AREA. . . . . . . : 1. 44 Ac�es BASEF�04JS: 0 . 00 c�s
RAINFALL TYPE. . . . : KC24HR PERV T:UiF
PRECIPITAT�ON. . . . : 3 . 90 inches AREA. . : 0. 00 Acres 1.44 Acre�
TIME ZNTER�AL. . . . : �0 .00 mirt CN. . . . : 86 . 00 98.00
TC. . . . . 10 . 0{3 min 5.00 mir
ABSTRACTTON coEFF: 0. 20
PEAK RATE: 1.47 c€s VOL: 0. 44 Ac-ft TIME: 470 min
BASIN �B: CB05 IdANIE:
SBUH METHODaL�GY
TOTAL AR�A. . . . . . . : 0. 03. Acres BASEFLOWS: 0. 00 cfs
RAIN'FAI�L TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3 . 90 inches AREA. . : 0. 00 Acres 0. 01 Acres
TIME INTERVA�. . . . : 10 .00 �in CN. . . . : 86. 00 98. �0
TC. . . . : 10.00 min 5. 00 r.;in
ABSTRACTIOI3 COEFF: 0 . 20
PEAK RATE: Q. C1 cfs VOL: 0. 00 Ac-ft TTME: 470 min
BASIN ID: C$06 i�tAME:
SBUH METHdDOLO�Y
T�TAL AREA. . . . . . . : 0. 13 Acres BASEFLQ�S: 0. 00 afs
RAINFALL TYPE. . . . : KC24HR PERV I:�IP
PRECIPITATI4N. . . . : 3 . 90 inches AREA. . : 0. 13 Acres 0. 0� Acres
TIME It�TERVAL. . . . : 10 . 00 �in CN. . . . : 86. 00 98. 00
TC. . . . : 20. 00 min 5 .0� min
ABSTRACTI�I� COEFF: 0. 20
PEAK RATE: 0.08 cfs V4L: 0. �3 Ac-€t TI:�E: 480 min
BASTN ID: CB07 NAME:
S$UH METH�D�LOGY
T4TAL AREA. . . . . . . : t3. 00 Acres BASEFLOtdS: 0 . 00 c�s
RAINFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3 . 90 inches AREA. . : 0. 00 Acres 0. 00 Acxes
TIME INTER�IAL. . . . : 20. 00 mJ.n CN. . . . : 86.00 98 . 00
TC. . . . : 10. 00 min . ,��:� -;i r
ABSTRACTIaN' COE�F: 0.20
r.r-.-r n�mr�. n nn „�., ••,-,T . n �n ,._r+- mrr..��• n
12/2a/99 9 : 50: 2� am Wa�ner Engineer�ng page 3
TIFFANY PARK ELEMENTARY
CONVEYANCE CALcs
1Q0 YEAR ST�Ft�+I EVENT
BASTN SUMI�SARY
BASIN TD: G8�8 NAT�E:
SBUH METHOD�LOGY
TOTAL AR�A. . . . . . . : Q.QQ Acx�es BASEFL�WS : �.OQ cEs
RA�AIFALL TXPE. . . . : KC24�IR PER� IMP
PRECIPITATTON. . . . : 3 .90 inches AREA. . : 4. OQ Ac�es Q .OQ Acr�s
TIME INTERVAL. . . . : 10 .00 min CN. . . . : 86. Qa 98 . 00
TC. . . . . 10. 00 min 5. Q0 min
ABSTRACTION CQE�F: �.2�
pEAK RATE: 0. D� cfs VOL�: 0.00 Ac--ft TTri�E: 0 mir�
BASIN ID: CB09 NAM�:
SBUH METH�DOLOGY
TOTAL AREA. . . . . . . : I. 09 Acres BASEFLOWS: 0 . 00 cfs
R.AINFALL TXPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3.90 inches AREA. . : O. QQ Aares 1. Q9 Acres
TIM� INTERVAL. . . . : 1�. oo �ttir� CN. . . . : 86. 00 98. i3D
TC. . . . : 1a. 00 min 5 . QQ min
ABSTRACTIaN COE�'�: 0.20
PEAK RATE: 1. 11 cFs VOL: Q . 33 AG-�t T�ME: 470 ma.n
BA82N ID: CB].Q NAME;
SBUH r�ETH011�LaGY
TOTAI.� AREA. . . . . . . : �. 6Q Acre� BASE�`LOWS: 0. 00 cfs
RAINFALL TYP�. . . . : KC24HR PERO IMP
i PRECIPTTA���N. . . . : 3 .90 inches AREA. . : D. 00 Acres 0. 6Q Acres
T�NiE TNT�RVAL. . . . : �.�.00 m�n cN. . . . : a6. 4o 9a. 00
TC. . . . . 10. 0� �in 5. Q0 min
ABSTRACTT�N CO�FF: Q. 20
PEAK RAT£: 0. £� cfs VOL: � . 18 Ac-ft TIhiE: 470 min
BASIN ID: CB11 NAME:
SBETH �ETHQDOLOGY
T(3TAL AREA. . . . . . . : o. �.2 ,�cres BASEFLaWS: 0 . 00 cfs
RATNFALL TYPE. . . . : KC24HR PERV TMF
PRECIPITATION. . . . : 3. 9Q inches AR�A. . : O . QO Acres 0. 12 Acres
T2Ni� INTERVAL. . . . : I0.0� mit� CN. . . . : 8�. 00 98 .�Q
TC. . . . . 10. Q0 mi,n 5. �� min
ABSTR.ACT�4N COEFF: �. 2�
1�EAK R,ATE: � . �.2 cfs VOL: 0 . 04 Ac-ft TTME: �7� tt��.n
12/2oJ99 9: �0:20 am Warner Engine�ring page 4
TIFFANY PARK ELEMENTARY
CODIVEYANCE CALCS
100 YEAR STORM EVENT
BASTPS SU2Ii�.RY
BASTL�T TD: CB12 IdAAfE:
SBUH METHODflLOGY
TOTAL AREA. . . . . . . : 0. 03 Acres BASEFLOWS: 0. 00 cfs
RAII�FALL TYPE. . . . : KC24HR PERV IMP
FRECTPITATION. . . . : 3 . 90 inches AREA. . : 0 . 00 Acres 0. 03 Acres
TINi� INTERVAL. . . . : 14. 00 min CId. . . . : 86. 00 98. 00
TC. . . . : 10.00 min 5 . 0£� mi.n
ABSTRACTIDN COEFF: i3. 2�
PEAK RATE: 0.03 cf5 V'�L: 0.01 Ac-ft TTA'IE: 470 tttin
BASIN ID: CB13 NAME:
SBUH METHOI30LUGY
TOTA� AREA. . . . . . . : 0. 58 Acres BASEFLOWS: 0. 00 cfs
RATNFALL TYPE. . . . : KC24HR PERV TMP
PRECIPITATION. . . . : 3. 90 inChes AREA. . : 0 . 00 Acres 0.58 Acres
TIME TNTERVAL. . . . : 10. 00 min CN. . . . : 85.00 98. 00
TC. . . . : 1.0.00 min 5, 0o min
ABSTRACTION COEFF: 0 . 20
PEAK RATE: 0. 59 cfs VOL: 0 .18 Ac-f't TINSE: 470 min
BASIN ID: CBI4 IdAME:
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 0 . 77 Acres $ASEFL�WS: O. OD cfs
RATIdFALL 'IYPE. . . . : KC2�4HR PERV II�iP
PREC�PITATION. . . . : 3 . 9(3 inches AREA. . : 0. 00 Acres 0.77 Acres
TTME INTERVAL. . . . : 10 .00 m�.� CN. . . . : 86 . 00 98.Ot3
TC. . . . . 10 . Ofl mi.n 5 . 00 min
ABSTRACTION COEFF: 0. 2a
PEAK RATE: 0.79 cfs VOL: 0 . 2q Ac-ft TT?�iE: 470 min
BAS�Id ID: CB15 IdAME:
SBUH METHODOLOGX
T�TAL AREA. . . . . . . : 0. 31 Acres BASEFLOL�]S: 0. 00 cfs
RAIIJFALL TYPE. . . . : KC24HR PERV TI�iP
PRECTPITATT�N. . . . : 3. 90 inches AREA. . : 0. 0o Acres 0 . 31 Acres
TIi+'!E TNTERVAL. . . . : 10 .00 min CN. . . . : 8&. Ot3 98 .00
TC. . . . . 10 . Oa min 5 . 00 min
ABSTRACTION COEFF: 0 . 24
PEAK RATE: 0. 31 cfs V�L: fl. 09 Ac-f� TIME: 470 min
i2/20/99 9 :50:20 am Warner Engineering page 5
TIFFANX PARK ELEM�NTARX
CONVEYANC� CALCS
100 YEAR ST4RM EVENT
BASIN SUMMARX
BASIN ID: CBI6 NAME: I
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 0.28 Acres BASEFLOWS: 0 .00 cfs
RAINFALL TYPE. . . . : KC24HR pERV IMP
pRECIPITATTON. . . . : 3.90 inches AREA. . : 0 . 00 Acres 0. 28 Acres
TIME INTERVAL. . . . : 10. 00 min GN. . . . : 86. 00 98. ��
TC. . . . : 10.00 min 5. 00 min
ABS�'RACTIDN COEFF: 0 .20
PEAK RAT�: 0 . 29 Cfs VOL: �. 09 Ac-ft TIMF: 470 min
BASIN ID: CB17 MAME:
SBUH M�THODOLOGY
TOTAL AREA. . . . . . . : fl. 34 Acres BASEFLOWS: 0. (30 afs
RAINFALL TYpE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3 .90 inches AREA. . : 0. 00 Acres 0. 34 Ac�res
TTME TNTERVAL. . . . : 10. 00 min CN. . . . : 8G. 00 98 . i3d
TC. . . . : 10. 00 mitl 5.00 min
ABSTRACTIdN COxFF: 4.20
PEAK RATE: 0. 35 cFs VOL: 0. 30 Ac-ft TIME: 470 min
BASTN ID: CB18 I3AM�:
SBUH M�THODOLOGY
TOTAL AREA. . . . . . . : 0.24 Acres BASSFLOWS: 0.00 cfs
RAINFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 3. 90 inches AREA. . : 0. 00 Acres 0. 24 Acres
TIME TNTERVAL. . . . : 10. 00 min CN. . . . : 86. 00 98. 00
TC. . . . : 10. 00 min 5. 00 mzn
ABSTRACfiI03J C��FF: 4. 2 0
PLAK RATE: 0. 25 cfs VOL: 0. 07 Ac-ft TIME: 47fl min
�
12/20/99 9: 50: 20 am Warner Engineering page 6
TIFFANX PARK EL&MENTARY
CONV�YANCE CALCS
100 XEAR ST�RM EVENT
- -_==���W�---=___---_��_--------��-���T_-=-=--------------���
REACH SUMM�RX
PIPE REACH ID No. PQ1
From:C`.�oi `I'o: C('�r..�
Pipe Diameter: 2. 000� ft n: 4 .012�
Pipe Length : s�� . 0000 ft s: o.oioo
Up invert : 365 .oaoo £t dflwn invert: 363 . 8800 ft
Collection Area: 3 . 5960 Ac.
Design Flow : 3 . 6735 cfs Dsgn Depth: �. 78 ft
Pipe Capacity : 4. 1631 cfs
Design Vel. : 5. 6072 fps Travel Time: Q.34 min
Pipe FuI�. Vel : 5.4399 �ps
PIPE REACH ID No. P02
From: C������ To: �S:�t
Pipe Diameter: 4 . �Q�0 ft n: 0. �120
Pipe Length . 96. 0040 ft s: 4.4050
Up invert : 3b5. 5000 ft down invert: 365. 020� ft
Collection Area: 1. 816Q Ac.
Design �'low : 1.8551 c�s Dsgn Depth: 0 . 36 ft
Pipe Capacity : 118. G844 cfs
Design Vel . 3 . 2995 fps Trave� Time; 4 . �8 min
Pipe Full Ve3 : 9. 6328 fps
PIPE REACH ID 2v'o. PQ3
Fram:C�',e>3 To: c�'�� ;_
Pipe Diameter: 1. 0000 ft n: O. OlZo
Pipe Length . 64 . 000o ft s: Q. 0141
Up invert : 365. 40U0 ft down invert: 365.4976 ft
Collection Area: 1. 848� Ac.
Design Flow : 1 . 8470 cfs �sgn Depth: 4.44 ft
Pipe Capacity . 4.9434 cfs
Design Vel : 5. 5322 fps Travel Time: 0 . 19 min
Pipe Full Vel : G .4595 fps
PIPE REACH ID Na. PO4
From: tC>�:r� 'Z'O: C(',r���
Pipe Diameter: 0. 6667 ft n: 4 . 0120
Pipe Length : 234. QOQ0 ft s: �. 0059
Up invert : 371. 2400 ft down invert: 3b9 . 8194 ft
Coll.ection Ar�a: 4.�11Q Ac.
Design �'low . Q.0112 c�s Dsgn Depth: 0 . 05 ft
Pipe CapaCity . 1.0846 cts
Design Vel . 0 .9575 fps Travel Time: 4 . Q7 min
Pipe Full. Vel : 3 . 1888 fps
12/20/99 9:50:20 am Warner Engineering page 7
TIFFANY PARK ELEMENTARY
CONVEYANCE CALCS
1Qp YEAR STORM EVENT
REACH Si3MMARY
PIPE REACH ID Na. P05
From:Cf�n'� To: �°�r�i
Pipe Diameter: 1. 0000 ft n: t�. Q120
Pipe Length : 62. 000o ft s: 0 .0100
Up invert : 371.27�0 ft down invert: 370. 6500 �t
Collection Area: 1.44�0 Ac.
17esign Flow . 1.4710 afs Dsgn Dep�h: 0.43 ft
Pipe Capacity . 4 . 1631 cfs
Desi.�n Vel : 4. 5911 fps Travel Time: 0. 23 min
Pipe FuJ.I Vel . 5. 4399 �ps
PIPE REACH ID No. POG
From: C.,C3�"� To: C:�n,
Pipe Diameter: 0. 6667 ft n: 0. 0120
Pipe Length : 87. 000o ft s: �. �200
Up invert : 369. 2Q00 ft down invert: 3�7. 4600 ft
Collection Area: 0.340� Ac.
Desi.gn Flow : 0. 3473 cfs Dsgn Depth: 0 . 20 f�
Pipe Capa��ty . 1. 99&9 �fs
17esign Vel : 4. �732 fps Trave3 Time: 0. 3& min
Pipe Fu13 Vel . 5. 873.0 fps
PIPE REACH ID No. P07
From: C��To: C.L��
Pa.p� Diameter: 1.0000 ft n: 0 . 012� '
Pip� Length : 27.0000 ft s: 0. 0101
Up invert : 362. (300D ft down 9.nv�x't: 361 .8283 ft
Co1l,ection Area: 4 . 14"70 Ac.
Design Flow : 4 . 1764 c£s Dsgn Depth: 0.92 ft
Pipe Capacity . 4 . 1838 cfs
Design Vel : 5 .5166 fps Travel Time: p. 05 min
Pipe Full Vel : 5.4670 fps
PIPE REACH ID No. P08
�'rom: �,°�n� To: i.S',c�r
Pi.pe Diameter: 1. U000 ft n: 0. 0120
Pipe Length : 150.0000 ft s: p.0230
Up inve�t : 358 .0�00 �t down invert: 3&6. 0500 ft
Collection Area: 2. b570 Ac.
Desiqn Flow . 2 .7143 cfs Dsgn Depth: 0. 57 ft
Pipe Capacity : 4. 7466 cfs
Desiqn Vel : 5.9066 fps Travel Time: 0.42 min
Pipe Fu1l Vel : 6 .2024 fps
12/2�/g9 9 : 50:20 am Wazner Engzneering pagE 8
TIFFANY PARIi ELEMENTARY
CONVEYANCE CALCS
1�0 YEAR STt1RM EVENT
__�^�_________._......r-====.--�....__.��^^_____-----__-_-_........----__��....__-_____
REACH SUidMARY
PIPE REACH Ip No. P09
From: C(��s3 To: �.C,c�'�
Pipe Diameter: 1 . 0000 �'t n: 0. 012�
Pipe Length : 107. o0D0 ft s; �.0257 '
Up invert : 370. 75�� ft dot�n invert: 368 . 0001 ft
Collection Area: 2 . 5570 Ac.
Design F1ow : 2 .7143 afs Dsgn Depth: 0. 46 ft
Pipe Capacity : 6. 6739 cfs
Design Vel : 7 . 63G0 fps Travel Time: 0. 23 min
Pipe Fu11 Vel . 8 . 7208 fps
PIPE REACH TD Na. P�.O
From: ���? Ta: CC�i�>
Pip� Diameter: 1. 00D0 ft n: 0. 012�
Pipe Length : 30G. �000 ft s: 0 . 0083
Up invert : 373 .3t300 ft �c�wn inver�: 370. 76G2 ft
Co1le�tion Area: 2 . 4170 Ac.
pesign Flow . 2 . 4691 cfs Dsgn Dep4h: t? . f2 ft
Pipe Capacity : 3 . 7928 cfs
D�sign Vei : � . 85'16 €ps Travel Time: 1 . 05 r��n
Pipe Fu11 Vel : 4. 9560 fps
PIPE REACH ID No. P11
From:�C�i�� To: CC�n�
Pipe Diameter: 0 . 66b7 ft n: 0. 0120
Pipe Length . 45 . 0000 f� s : 0 . �133
Up invert : 373 . 9000 ft c:o:vn invert: 373 . 3015 ft
Co1leCtzon Area: O. G000 Ac.
Design Flow . 0. 6129 cfs Dsgn Depth: 0 . 30 f+
Pipe Capacity : 1. 6284 cfs
Design Ve1 : 4 . 1081 fp: � . _ . � .. _ ,
Pipe Fu11 Vel . 4. 7876 fp:.
PIPE REAGH ID Na. P�.�
Fram: ��'��l To: C�o`�
Pipe Diameter: 0 . 6667 f� n: 0. 0120
Pipe Length : 110. 000o ft s: 0. 008Q
Up invert : 374 . 38�0 ft down invert: 373. 300� ft
Callectian A�ea: 0 . 727� Ac.
De��.gn Flow : 0. 7427 cfs Dsgn Depth: 0 . 38 �"t
Pipe Capacity : 1. 2629 afs
Design Vel : 3 . 5586 fps Travel Time: 0. 52 min
Pipe F�11 Vel : 3 . 7i31 fps
12j20/99 9 : 50 :20 am Warne� Engineering page 9
TIFFA�Y PARK ELEM�NTARY
CONVEYANCE CALCS
100 YEAR STOR�'i EVENT
REACH SUMMARY
PIPE REACH ID No. P13
Fro�: C��i�?_ To: CC�;I
Pipe Diameter: O. f667 �t n: D. �120
Pipe Length : 135. 0000 ft s: 0. 0050
Up fnvert : 374. 8600 ft down invert: 374 . 1850 ft
Coll�ctian Area: 0. 6100 Ac.
Desiqn Flow : O . b231 cfs Dsgn Depth: 0_ 40 ft
Pipe Capaaity : 0. 9984 cfs
�esiqn Vel : 2. 852.1 fps Trave�. Time: 0. 79 min
Pipe Fu�.l Vel : 2. 9355 fps
PIPE REACH TD No. Pl�
From: CU�:'.y To: CC����
Pipe Dialtt�ter: 0. 6667 ft n: 0 . 0120
Pxpe Length . 48 . 0000 f� s: 0. 0050
I3p invert : 375. 1000 ft down invert; �74 . 8600 f�
ColZection Area: 0. 5800 Ac.
Design Flow : 0. 5925 cfs Dsgn 3epth: 0 . 39 ft
Pipe Capacity . 0. 9984 cfs
Design Ve�. . 2 . 8192 fps Travel Tirae: (3. 28 min
Pipe Ful�. Vel . 2 .9355 fps
PIPE REACH �D No. P15
From: i_C��� To: (�f�h i
Pipe Dia;�eter: 0. 6667 ft n: 0 . 0120
Pipe Length : 293 . 0004 ft s: 4. 0097
Up invert : 368 .8900 ft d�wn invert: 36G. 0479 ft
Co13.ection Area: 1. 3600 Ac.
Design Flow . 1. 3893 cfs Dsgn Depth: 0. 62 ft
Pfpe Capacity : 1. 3907 �fs
�esign Ve1 : 4. 1155 fps Travel Time: 1 . 19 min
Pipe Ful� Vel . 4 . 0887 fps
PIPE REACH I� Ido. P16
From: ��'>�J To: c_��r���
Pipe Diameter: 4. 6667 ft n: o , t112.o
Pipe Length : '72 .0000 ft s: 0. 0229
Up invert : 374 .3500 f� down inv^rt : '�.r.�� , ?�', .% ;�-
Collection Area: 0. 59f3Q Ac.
Desiqn Flow : 0 . 6027 cfs _ : _
Pipe Capacity : 2. 1368 cfs
Design Vel . 4 . 9900 fps Tr.avel Tir�e: C� . 24 m '
Pipe Fu1.1 Vel . 6. 2822 �
12/2Q/99 9: 50:20 am War�er Engineering page 10
TTFFANY PARK ELEME�TARY
CONVEYANCE CALC3
10 0 Y EAR STOR�'� EV EATT
RFACH SUMMARY
PIPE REACH ID No. P17
From:Ci°�tta To: C G i`,
Pipe Diamster: 0.6657 ft n: 0. 0120
Pipe Length : 135. 0000 ft s: 0.0222
Up invert : 373. 350Q ft down invert: 370.3530 ft
collectian Area: 0. 2820 Ac.
Design Flow : 0. 2881 cfs Dsgn Depth: 0 . 17 ft
Pipe capacity : 2. 1039 C�s
Design Vel : 4. 0073 fps Travel Time: 0.56 min
Pipe Full VeI : 6. 1855 fps
PTPE REACH ID l�o. P18
From: A�c�i Ta: C�,c��
Pipe Diameter: �. 6667 ft n: 0 .0220
Pipe Length : 43 . 0000 ft s: 0. 0140
Up invert : 370.2500 ft down invert: 3b9. 820a ft
Collect�on Area: 0. 0970 Ac.
Design Flow : 0. 0991 cfs Dsgn Depth: 0. 12 ft
Pipe Capacity . 1. 412� cfs
Design Vel . 2.2137 fps Travel Ti�ne: 0. 32 :��in
Pipe Full Vel : 4. 1514 fps
PIPE REACH ID No. P19 . �->> :'��'�;
From: C�r�; To: ����,
Pipe Diameter: 1. 0000 ft n: 0.0120
Pipe Lersgth : 200 .0000 ft s: d. �100
Up invert : 366. 0000 ft do:an :nvert: 3G� . 0000 rt
Collection Area: 4 . 0170 Ac.
IIesign Flow . 4 . 1036 cfs Dsgn Depth: 0 . 89 ft
Pipe Capacity : 4 . 1631 cfs
Design Ve3 : 5.5586 fps Travel Time; 0 . 60 min
Pipe Full Ve3 . 5 . 4399 fps
Network Reach nt
REACH <-qAEA> �-0:R> LENG7H SLOPE � n > DSGN Q � Pi?E tvCe�th %�epEh 'J2c: Viutt C_A^ea
ID (Ac) (ft) (ft) 4t/ft ----- (cfs) ------ (ft) ---�-� (f{xs) (fps)
--------_====�s_cc-vssacc=====----========��_-__�==_=
12/24/99 9: 50: 20 am Warner Engineerzng page lI
TIFFA�Y FARK EL�MENTARY
CONVEXANCE CA�CS
10 Q Y EAR STC3RM EVENT
REACH Si3MNIARY
Hetuork Resch n2
REACH <-AREA> <-0fA> LENGiH SLOPE < n > 4&GN G X RIPE Ndepth 9:Depth Vect V#ulf C_Area
ID (Rc) (ft) (ft} ft!#t --•--• (cfs) •-•••- Cft1 ------ (fps) (fps)
__��������"��!'..L1'i"SRa3�J�r��������__������CIZ:L.-..:GC�C�uC���..v������___________ST_'�IIMissiax�-��
P14 0.58 0.67 ti8.00 Q.aa5o 0.0120 0.59 59.34 �.34 58.oS 2.82 2.94 ca13
p13 0,61 0.67 t35.00 8.4050 0.01Z0 0.62 b2.41 0.40 54.97 2.8� 2.9k CB12
P12 0.73 0.67 �to.ao �.oaao 0.0120 0.74 58.84 0.38 57.7z 3.56 3.79 CB11
llctko�k Reach n3
ttEACH <-AREAy <�11A> LENGTH SLOPE < n > �SCiJ a % P3PE Ndepth ,tDepth VpCt Yfull C_Ares
ip CAc} (ft) (ft} #t!#t --•-- tcfs) ------ (ft? ------ {fps) (f�s)
............................ ������������� ..��..�........�.�.z=��������..sn=nn=nn�C��'-'rro��=� eeaee=�
__������_____C�.�..:............�������..���_�_____������������ _�_____
a40 2.�2 1.€3fl 30b.00 0,0083 O.Ct20 2,47 65.14 O.b2 b9,b7 4.BG 4.% C904
P09 2.b6 1.Ofl 107.00 O.Q257 �.Q120 2.7'� 40.67 0.46 46.27 7.64 8.72 C818
P08 2.b6 1.Ofl 15�.00 O.Q130 �.C�12ff 2.7'. 57.18 �.57 56.70 5.91 6.2t� CB07
12/20/99 10: 20: 35 am Warner Enginee�ing page �
TI�FANY PARK ELEMENTARY
WATER QUALITY CALCS
2 YEAR ST4RM EVII�tT
REACH SUMMARY
PIPE REACH ��l Na. PO8
Fram: Ta: �'
Pipe �7iameter: 1 .t}040 £� n: 0. (}�2�
Pipe Length : 15C}.0�00 ft s: 0. 0134
Up invert : 368. 0004 ft down in�ert: �66. 050o ft
Coilsction Arsa: 2 . 6570 Ac.
Design FlaW : 1. 343a cfs Dsgn b�pth: a. 38 ft
Pipe Capacity : 4 .7466 cfs
' Design Vel : 4 .9305 fps Travel Time; 0 . 51 min
� Pipe Full VeI : C . 2Q24 fps
PIPE REACH ID Na. P15
�'rom: �'o:
Pipe Dia�neter: 0. 6567 f� n: 0. 0120
Pipe Length : 293. Uoo0 ft s: O. aa97
Up inVeYt : 368.89�0 ft dowtl invert: 36&. 0479 ft
Collection Area: 1. 3600 Ac.
Tlesign Flow . �. b874 cfs Dsgn De�
Pipe Capacity . 1. 3947 cfs
Design Ve1 : 3 .7604 fps Travel r}' :
Pipe F't1I.1 Vel . 4 .0887 fps
� !<';��ut ��<;�.� �.. ;,�aai �r 0_i,�� _ � _ � � ��
A�P�� DIX H
Gaiculatians for Biaswale
ItVorkshest far Trapeaoidal Channel
Pr�ec#E]esariptlan
Praject File c:Idrawings1002c102�4jlstor�n',projecti.f�r�2
Worksheef bioswale
�low Elemsnt Trapezakdal Ghann�l
A�Isthod Manning's Formula
So've For Botton,Wi�t;h
Inpu# DaEa
Mannings Caefficient 0.030
Channef Slope 0.0'f0(}00€tlft
Depth 0,25 6t
�ef# Side Slope 3.00 H : V
Righ#S�de Slope 3.00 H : V
Dischar�e 2,d3 ft'�s
Results �
89ttorn Widtf� 3.86 Ft ::ti.::.�,� �_�:.�� �-i �..��ca.:i-��:
Flaw Area 1.15 ft2
Wet#ed Perim�ter 5.44 f�
�"op Width 5.36 .+
Critical Dep#h 0.'i9 n
Critical Slope f}.023988 ftlft
Velocity 1.?6 ft/s
Velocity Head 0.05 ft
Specific Energy 0.3Q fE
Froude Number �.67
Flow is subcritical.
- . :-- �:,, , _,.:, .
Page 1 of 2
K1ng County B�iidZng and Land Development Divlslon
TECHI�ICAL tNFC)RMATiON REP�RT {TIR) WORKSHEET
. . � � . � . • � • • � •
. � � r •
ProjectOwner , 2��a� :r�a�� �;',n�r,<�{ � Pro;eciName t �;-rr;,, �ier�e��Ur, :�cr:;.�l
Address locatian
� Phone Township�
� Projec!Engineer ... R�� J �
Section J 2_1 _
Company Project Size �� ___. AC
Address Phone 1�pstream Dta�nage Basin Size AC
. � . . . � , . � .
Q Subdivision � pp��}��q [] Shorellne Management
[] Short Sutxtivision Q COE 40A [� Rockery
� Gradir�g (� DOE Dam Saieiy � Structtsral Vaults
� Commercial Q FEMA Floodpiain CJ Other
�Q Other . — Q CpE Wetlands � HPA
� • • • i •
communiry ,
,
; Drainage Basin
Q River� _ .._ � � F€aodplain ,_._ .--
� Stream __.....� � Q Wetfands _
0 Critical Stream Reach � SsepslSprings
[7 DepresslonslSwales [] High Gsoundwater 7able
Q Lake —. � Groundwaier Rect�arge
C7 Steep Sbpes Q ather .- ;
Q LakesidelErasion Hazard
.
• Soll T Slopes Erosion Potentraf Eros�re Velocities
Ar�n`�S� Ic�.4swo�. <�o��5b`!. -- -
i
�
Q Additionaf Sheets Aitatched
APPENDfX I �
Page2oi2
Kln9 Coanty Be,llding�nd Land Deve#opment Dtvislon
TEGHNiCAI. lNF4RMATIflN REP�RT (3!R) W�RKSHEET
� . • .
REFERENCE LiMITAT�OWStTE CONSTRAINT
Q �.h.4• �ownstream Anaiysls
0
0
Q
� .
� . �
Q AdditionaE Sheets Atiatched
� � s
MiNfMIlM ESC REOUIREMENTS t�A1NIMEJM ESC REOUIREMEl�[TS �
DURING(�NS�RUCTION FO�.LOiNINGCONSTRUCTI�N
� Sedimentaiion�acililies C� Stabilize Exposed Surface
� Stabil'tzed Constructfon Entranoe � Remove and Restore Temporary ESC Faafities
Q Perimeter Runoff Controi .C.�x ClearS and Remove A!I Si�t and Debris
� Clearing and Grading Restric4o�s � Enst�re Operation ot Permanent Faalities
O Co�er Praclices � Flag Lrmiis of NGPES
0 Conslruction Sequance � �ther
Q Other
�
L�h Grass Llned Char�nsi C� Tank Q tnfiltration Method oi Analysls
I� Pipe System �J Vauff 0 �ep3'ession
Q Open Channel C] Energy Qissapator [] Flaw Dispersaf CompensationlMiligatian
(� Dry Pond C� Welland � Waiver of�liminated S�te Storage
Q Wet Pond C� Stream 0 Regional Detent�on
Briet Description of System Operation Cn�cJ�. L�a.�:�,�, Col,2c�- �circn w«-��Q� , No..re.Mc.n� �
a�-e�s �t�L� � ��k ���� .,�.1 .
Facifity Related Sile Lirnitations Q Additiona!SFreets Attatcf7ed
Reference FdC�ity Urnitatlon
. .
� . �
Q Dra�tage Easement
�} Cast in Place Vault Q Other � Ar�cess Easeme�i
� Reta�nEng Wall Q Native Growth Protection�aserr�ent
� Rockery>4'High Q Tract �
�
� Structura!on Steep Siope � O'.her i
. , � . � � .
; I at a civll engineer ander sny supervislon heve vlsited the site. Actuaf
sfte condltlons a9 ab9erved wsre inoorposated Into thls woNcsheet and tha
ettstchrrtente, To the best of rr�y knowlec�ge!he intotmstion provlded �4nb-P�'►.�r�,.e�l.� J�1�7�'�9-
h�'e Is nccurete. •
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. . . _ ,
,: � ,,�` , � . ' �. : . Planned Additiar�s and Impravements to
. � . . � � � Ttffany Park Elerr�en#ary Schaol ..
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. - O a.o E n g i n e e t t� , . " � ' ��ile No.2074-OQ4-0U-1130106I&99
!�1�
G�(r��;�:.�1�[17C'��'S
June i 8, i 999
Coi:Si�ltiitg F;Etgincc�•s
a>>d Ccuscicittlsts
[)(��ieea iti�K'�Shirt�t+.lE3
l,lE'C�;OtI,;311i{,1��5„2l
Renton School District No. �03
1220 Ptorth 4th Street
Renton,Washington 98055
Attention: Mike Torgerson
Ws ace pleased to preseni four copies ofaur"Repflrt,Geotechnical Engineering Services,
Plartned Additions and Icnproveinents to Tiffany Park Blernentary Schoot, Runton, Washington,"
�ur services were completed in genesal accordarice with the scope of services presentcd in
aur proposaE datid April 7, 1999. Our services were forinally authorized by you on May 4, 1999.
The project was in the preEiminary design phase at the time this rcport was prepared and fir�al
buiiding loads are not available. We recommend that additional geotechnical evalu�tion be
completed after building loads havc bcen determined to assess the potential impacts of building
settlement where foandations are supForted above the compressibie silt and clay encountcred i��
our explorations.
. 1Ye apprcciate d�e opportu�ity to be of service to you on this project. Please call us if you
�a�e any questions regardiug the eontents ofthis report or when we rnay b;.of f'urther assist�v�ce,
Yours very trulti,
GeoEngineers,In�, ;i ��
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CQNT�NTS
Page Nc.
INiRODLCTION...............................,,.,..........,.....,.....,...,,.,.........,,,.,................. .........�f
sCOPE.......................................................................................................................................#
P�iqSE 1 �-G�O'T'ECHNICAL [2ESIGN SERVICES 2
F'3�ASE 2—G�C3T�CHNICAi.SUPPORT OURENG DESiGN 3
Sl�'E O�SCRIP710N............................................ .... .. ....................................:.........................3
S�lR�ACE CONOiTiO�iS 3
SiJBSUR�ACE CONOfTIONS 3
Ger�eraE 3
General Geology 4
Soil Conditlons � �
. Ground Water Conditions 6
CONCLUSIONS AND RECaMMENDATIQNS ........................ .6
.............. ....... ...... .... .. .. .
G EN ERAL 6
S1TE PR�PARATION ANO EAR7HUVORK 7
Oemolition 7
Clearirtig and Site Preparation 7
Sedlmaniatio�arxl Erosion Cor�iro! 9
Structural Filf 9
. Qpen Cut Excavations �0
Permaner�Cut and Fil�Slnpes 10
FOiJNOATION SUPPORT 'E�
LATERAL R�StSTANCE 12
FLOflR SLAB SUPPOFtT 12
RETAINING INALLS 12
PAVEME[VT �ESIGN 't3
- SEISMICITY 'f4
Generai 14
Unifonn Buiiding Gode (UBC) Site Cnefficient 44
Oesi�n Ear#hquake Levels 1�
tiquefacfaon Potential 1 b
ORAINAGE CONSIOERATEONS 15
LIMiTAT10NS ...................................................................................... .... .. ............................15
Figufes Fi ure No.
Vleinify Map 1
Sife P€an 2
G e o L• n g i n e e r s t File No.20?4-0G�4-OC-I I30'�Ab1849
COt�IT�N�S (CO[�T.j
P��� No,
APPENQIXA FIELQEXPLORAT�ONS................................................................................... A-1
APP�NDiX A �IGU�iES � Finure Na.
S41L CLASSIFICATION SYST�1�h A-1
KEY�O BORING LOG SYMBOf�S A-2
L�G OF �ORI N� A-3...A-�4
APPENDIXB LAB4RATORYTESTING................................................................................. B-�
GENERAL B-4
VISUAL CEASSfFICATtONS e-1
M03STURE CONTENT DETERMINATIONS B-1
DRY �ENSiTY DEfERMINA710NS B-1
PARTICAL SfZE ANALYSIS B-1
ATTERBERG LfMITS B-2
CONS�LIDATION TESTS E-2
Af'f'�NCJ{X B FIGU19�5 Fis��re No,
SIEVE ANALYSES RESULTS B-1
ATTERBERG L1Mi7S 'l'EST RESUL7S B-2
GONSOLiDA7EON '1"EST RESULTS B-3...B-4
G e u E n g i n e o r s 11 File'.�e,20?�•0'JA�bO-1 i3Cti3F,l899
�
REPORT
GEOTEGHNICAL ENGiNEER1NG SElZV�CES
PLAN�IE�AD�tT10NS AND iMPROVEMEAITS TO
TI��ANY PARK ELEMENTARY SCHOOL
RENTON,WASHINGTON
�C}R
RENTON SCHOOL DISTRICT NO. 4�3
INTRODUCTION
'I'�is report ��esents ihe results of our gcotechnical engineering serviccs for the planned
additions and improvements to the Tif�amy Park Elementary School lacated along Lake Youngs
Way Souiheast in Ren#on,Washington. The site Iocation is shown on the Vicinity Map, Figurc F.
We ifnderstand t��at d�c project includes demolition of all existing structures with d�e
exception ofthe classrcxym building located on the southwest portion of the property, 'I'1�e project
was in ihe preliminary design phase at the t'tme this report was prepared. I-�vwevcr, a reccirt
conceptual schcmatic design for a new site layflut indie�tes ihat new buildings may include
classrooms added to the nortlrwest end of the existing classresom building {fi�ush floflr at about
Ele�ation 372,5 feet} tliat witl remain and a new multi-purpose building conta.ining a gym,
commons area, music roflm, and classrooms (finis}t flcx�r at about Elevation 37�1,5 to 376.5 feet}.
Final foundation loads are noi known at this time, We understand however, ihat exicrior �vait
loads will be about 1,Sd0 pounds per linea.r faot and #hat calumns can be supparted on £ootings
proportiflned for a 2,004 pound per square foot (psf� bearing pressurc. In additifln, improvements
will inclucfe a new covcred play area in the west portion of thc site, ball fields on tlic no►thwcst
por�ion of ihe property, and at-grade parking areas north an.d east of the proposed buildings. ,
E�ci�sting an�d proposed site improvemenis are shown on the Site Plan, �igure 2, ,
Most af the improvemenis and construction will be ai or near existing gr�des. However, auts !
on the arder of about 15 feet deep wi]1 �e reqaired east of the proposed new �utti�pur�ose '�,
Building and up to 7 feei deep in the northwcst portion of the s[te for#he batl felds. Most o�the �,
proposed parking and access road areas wil� be wi#hin a coup�e of fcet of exasting site grades, �
except for thc access ro�d from ihe east parking lot to the north parking �ot where cuts on Lhe '
order of about 10 feei are planned. !
SCOPE '
The pu�posc of our geotechnieal engineering serviees is to evalu�te Lhe subsurface soil and I,
ground wa#er conditions as a basis for providing gcotcchs�ical recommendations regazding the �'
proposed acFditions, new buiidings and improvements at the Tiffany Paric Elementary School. In j
our proposal we providect scopes of work and costs for tivee p�sases or woric ineluding our initiaE I
investigation and geotechnical design services (Phase 1), support during the design p�ase
(Phase 2), and far geoiechs�ical construction services (Phase 3). �'hases i and 2 �vere approved at
this time and our services for these two phases includes the following tasks;
G e o E n g i rt e o r s 1 File F�{o. 2C7d-QC4-OG-113�J'�061849
PNASE 1 —GEOTECHNlCAL QESiGN SERVtCES ,
Complcte a ficld cxploration program consisting of shallow barings using track-maunizd
hallaw-stcm auger drilling equipment. �btained soil samples at abaut 5-faot intervais for
lat3oratory testing to determine sail sircngth and settlement characteristics, where appro�riate,
Our specific scopa of services inclWdes the foltowing tasics:
1, Re�iew availahle geologic and subsurfacc information for the site,
2, Explore subsutface conditions at the site by driiling 12 borings using a track-mounted drifl r:g
(rubber cleats) ad�ancing hatlow stem augers. The borings werc advanced between 9 and
23,5 fcct below the graund sunface{bgs),
3, Evait�ate the physical and engineering c�araeteristics of the soi)s based on laboratory tests
perforrned on samplcs obtain�d from tt�e explorations, Tl�e laboraiory tests c�nsisi of p�rticle
size and plasiicity tests, moisture conient and density determinaiions, ��d consalidatians
tests.
4. Pro�ide rccommendations for ihe following:
a, Site preparation and eartliwork including clearing criteria, suitabitity of on-site soits for
' use as structural ftll, constraints for wet weather construction, gradat�on criteria f4r any
stn�ctural fill material which may have to be imporced, and structural f}ll placement a�na
compaction rcquirements.
b. Temporary and permancnt cut andfor�11 slopes.
c. Provide recommendations for sedimentation and crosiou control dt�r�ng and followir,g
construction, and germgnent site drainage.
d. De�etop recommendations for fo�ndation support includine ailoti�ablc soi] i�e��ring
press�ires, settlement estxmates, minimum faoting sizes for pad and strip faotiii�s, and
minimum depth of faotings beiow finished grade.
e, Aliowable increases in sai! bearing when supporting seismic gcncrated�oads.
f Acti�e and pass��e soil pressures for design of founda;�or� �:��9 �_,alis
g, Coeffteient of base friction for resisting lateral force�
�, Provide recommendatioizs for sU �
at�d�apor retarder as appropriate
i, D'ascuss seismicity at�he site and , � , . . �, �
type and site cocfficient basetj on 199�7 Uniform Bui�dirtg Codc(UBC)cri#eria.
j. Design pavement sections for ace$ss drivew�ays and parking areas.
_ k. Provide recommendations for surface and subsueface drainagc bascd an ground water
cond'ttions cncaunLered in Lhe explorations or expecte�i.n the area. Disct�ss gcatechnical
considerations related to groandwater and scepagc canditions �ncluding anticipated
seasonat fluctuations,
�. Comment on any anticipated construction diff�cuities identified from the resulis
site s#tic�ies and from our exper�ence on prajects at similar sites,
S, Prepare a written report presenting our conc4usions and recommendat[ons tag�her witti
supporting field and laboratory i�formation for incorporation into design of ihc project.
G e a B n g i n a e r s Z FiEs No. 2474-004-0U•1 1 30106 1 849
PHASE 2— GEOTECHNICAL SUPP�RT DURING DESIGN
During and after pur geotechnical report has bcen suhmitted, we wili pro�ide design support
including consuitation for alternative design approaclics for elements such as retaining walls and
detention faci(ities, geotechnicat design criter�a for specification preparaEion, plan �nd
s�;eci�cation review,and atter�ding design meetings.
S1TE DESCRiPTI�N
SUF2F'ACE CaNDITIONS
We reviewed inforn�ation provided hy McGranahan Par#nership that included an existing site
survey nsap prepared by D,A. Berg, Tnc., dated ApriE 28, 1999 and a schematic drawiug showing
a conceptual sitc layout for the proposed improvements prcpareci by Weisman Design Graup,
daicd April 20, 1999, Our Si� Plar2 (Figure 2) shows ihe existing features with the proposed
(mpst recent) (ayout of impro�ements superimposed on Lhe plan.
Tiffany� Park Elementary School is located at 1fi01 La}ce Yourzgs Way SE, west af the
ir.tersvction of Lake Youngs Way and Kirkland Avenuc SE, The appraximately 10-acre site is
presen#ly occupied by the existing Tiffany Parlc Elemeniary School. The site is bardered to thc
narth and east by Lakc Youngs Way SE and by residentiat devetopments to the south and west.
The schoal site �s situated on a glacial till upland above the Cedar River valley, about
3,00� feet south of the Cedar River and Siate Route I59. The ground surface generally slopes
dawn tA the wcst partiou of the site from the north arzd £rom the east. The ground sarface
elcvations rvige from about 372 to 377 feet in die centr.�l aszd south portions of L3�e site wbere the
exisCing buildings are located. The grpund surface in Lhe north portion of the site s[opes up to the
north to about Eie�ation 382£eet,while the ground sur#'ace in the east portion ofti�e site slopcs iip
to the east to about Ele�ation 390 fcet. The lowest area on ih� site is along the west property line �
at ahauE EEevation 3b8 fect.
Three builrlings and a vovered pEay azea occupy the central and sauih portians of t�e site with
the n�west building located aiong i�e southr�vest property line. Asphalt pa�esi parking areas and
aocess raads are located on the southeast side of the property. A portable classroon� huilding is ,
locatcd northwest of the main classroom huilding. Thc huildings are typicatty surrounded by
asphait or conc�e�e surfaces, 'I7�c no�ttt and west portions of the site are cavered with lawn and
accupied by se�eral eonifer and decic�ous trees. . The east to northeast portions of the si#e are
forested with numerous targe conifer and deciduous Ere�s, The locations of surface features are I
shown in Figure 2. !,
SUSSURF'ACE C4ND{TiONS
General
- We cxplored subsvrf'ar,a sai�and groundwater canditions a#the site hy tlrElling twclve harings
to depths ran$ing from about 9 to 23,5 fcct hgs. Halt Drilling Inc. af Puya3lup, Was3�ing#an j
compieted the barings on May 5 and 6, 1999 using track-mounted hollow-stem a�rger driliing
equipment. 'Fhe locatians of the barings are shown in Figure 2. The deta�ls of our field
G e o B n g i n t e r s 3 �i£c?Ya 2'J74-00�-()0•113'J`U6S899 I
exploration program ar►d exploration 3ogs are presented i� .r�gpcndix A. Our laboratory testing
ptpgram is sumn�a.rized in.Apper�dix B,
Genera! Geology
The project site is 3ocated alon� the edge of a glaeiai tili uplaazd, soutli aP tha Ccdar River
�Ialley. Bascd on #he Geologic map of the Re�ton Quadrangl�, King Couzity, WasEungton,
(Mullineaux, 19b5), glacial graund moraine de�wsits eonsisti�g of ablation #ill o�er ladgment ti13
exists at relati�eiy shallow degths in a.nd around the school property. I.odgtnent ti�l in fhe area is
generally a cannpact,unsorted �ixture of silt, clay, sand, and gra�ci. Ths over[ying ablation till is
gancralty ti�in (Z to i 0 feet thick) ar►d muci�less cornpaet,
Three areas were identifi�d on the map as ltaving localized iaeustrine deposits around tl�e sitc
and onc appea�rs to be on or adjacent t� the aorth side of the school properry. Mapp�d iacastEine
deposits are described as typically consisting of mEactuc�es af si�t, clay, and peat. Lacustrine
deposits are suseepti6�e to consolidation settieznent.
Soil CQ�tditio�ts
In gcneral,thc subsurfaee soi� eonditio�is �ary across t�ie site, but are relatively� unifQrm iki die
proposed buiiding area near #he eenter of the s3te, �'or thc purpose of describing thc soil
conditions at t�ie site, subsurface conditions under #he m�jor new improvemenCs arc described
sepaxately belaw.
Progosed Multi»Use Building: Borings B-4 tl�rough B-3 were drilled i� accessible areas
� arourtd the proposed Multi-use Building near thc middle of the site. �n gcneral, all the borin�s,
except B-9, encountered similar soil eonditions where soft to stiff lacustrine deposits eonsisting of
silt an.d clay were encountered aver medium dense to very dense or hard giacial deposits. Barin&
B-9,drilled at the north cnd of the proposed building, encountered about 1A feet of inedium�dense
silty sand fiil soils o�er�ery dense glaeial till.
Tiie soft ta stiff lacustrine deposits ranged from depths of ahout lQ to lb feet bgs. On the
sauthwcst sidc af Ehe main classroom building the laeustri��e depasits were eiscauntcred ta depths
of 1Q to 12 fcet in bonings B-4 aazd B-5, and on the east sidc they were encountered from depths
of 11.5 ta t6 feet in borings B-f #hraugh B-8, 'Fhe lacustrine deposits generaity cansist af
compressiblc, soft ta stiff, silt and elastic silt with occasiattal laycrs t�f silty sand or poarly graded
sand. Approx.imaiely fi ta 7 feet of saR to medium stiff lean clay was encauntered i� the upper
po�tion af baring B-4. The saiis iii the upper 5 to? fect af eaeh boring had the appear�ce of�Ii
due to observed mi�ced sail conditions, Tree raats were encounter�d ta a dc�t� af a�out i 0,5 feet
in baning B-8,
Medit�m dense to very dense sand deposits ar glacial till soils ursderlie t�ie iacustrine deposits
encountered in the borings, "�'he sarzdy soiis generatly consist of inedium dense to very dense
� silty sand or pc�rly grac�d sand. Tbe glacial lili generally consists of very dense silty saa�d wi�.h
gravel. Boring B-7 encaurrtere� hard larninated silt with fine saazd that appeared ta be siltstone
about IS feet bgs,
G c o E n g i n e e r s � Filo ho. 2074-sh'?4-00�k:34'�,�61899
The ground surface clevations �+ary significantly araund the proposed building area with
as�ha�t and concrete s�rfaces, lawn, and forested areas. `The asphait encauntcrc:d in the borings
around#he existing buildings was generally 2 to 3 inches #hick and o�erlies about 3 to 4 inches of
base inaterial, The lawn or sod areas were gencrally about 3 inehes t�vck. Forest duff was
encountered in bo�ing B-8, but it was only about 1-inch thick.
Praposed Classroom Additifln: Boring B-2 was drilted to a depth of about 23,5 feet in the
area where #he classroom addition is proposed on the northwest s�de of#he existing efassroam
building. Approximately 3 inches of sod was enco�ntered at the graund surface, Approximate€y
4 feet of inedium stiff, compressible, org,�nic silt was eneo�ntered beiow the sod overlying aboc�t
4 feet of mcdium dense silty sand fill,which in turn averlie a 5-foot thick stiff silt lAyer, Medium
dense siIty sand was encouncered �rorn a depth of about 13 to i7 feet over�ying �ery dense silty
sand with gravel at deptl�,
Prepased Covered Play Area: Borinp, B-3 was dril�@d to a dc�th of about 1 t feet at the
iocation af the proposed cavercd play area. Approximately 6 inches of sad vvas encountered at
the ground surfaee, Approximately 3,5 feet of compressibk organic silt with scattered wood
dehris was encountered below the sod overlying abvut 2.S feet of inedium stiff to st�ff silt,
Compressible, stiff, iean clay was encountered from a depth of 6 to 1Q fc�t bgs. At a depth of
i 0 feet deep,very dense glacial till composed of siity sand with gravei was enco�ntered.
Propased Par�ng Areas: The two main proposed parking areas arc locaEed norfhcast and
south of the propased Multi-use Buitding, The south parking area is where btiis parking and bus
traffic witl occur,while#he northe.a.st parking area wiIl be for general parking.
Bor�ngs B-1, &6 and B-7 were drillcd in the area near the south pa.rking iot, Boring B-i was
drilIed through the existing parking surface and encountered about 6 inches of asphalt ovex
2 inches of base material. Underiying the pavement matcria[s, soft silt fil[ was encountered to a
depth of about 3 feet overlying a soft ta medium stif£, compressibEe argar�ic si(t Iayer t�iat
extended down to a deptl► of about a.5 feet bgs. �tiff silt was enco�ntered to the bottom of Lhe
bor�ng �t a depth of abaut 1 I,S feet, A wet sand layer ahout 12 inches thictc was encountered in
the silt. Borings B-b and B-7 cncournered 13,5 a�d I i,S fiect, res}�ectively, of fitl �td �acustrine
deposits ov�r denser glacial suiis, The upper 4 feet ofB-6 and ihe upper'7 fcez of B-7 appeared to
�fill soils consisting ofinedi�m stiff silt ar det�se mixed siity sand and siIt,
Borings B-i� ar�d B-11 were drilled in the area around the proposed northeast parking lot.
Three t,o fo�r inches of sod was encouatered at ihe graund surface in borings B-i(3 and B-11.
Boring B-i0 encountered aboui 2,S faet of inedium dense silty sand fii# ovex[ying dense soils,
�� Bocing B-11 encountered about 4,5 feet of silty sand filt overIying �acustrine depasits consisting
of�nedium stiff silt and taose si�ty sand to the bottnm af the boring af a depth of 14 feet.
Bor�ng B-8 was drilled near Lhe taeation where a road cut w�l be made to access the northeast
' parking tot, Soils encountered in B-8 incIe�de 5 feet af�ll soils camposed of 2 feet of arganic silt
overtying 3 feet of elastic silt overlying compressible, medium �tiff, lacustr�e silt tliat was
�ncount�red to a depth of about I2 feet. Loose silty sand was eneountered below the Iacustrine
G e a � n g t t1 e c r s � File Itia 2t�?4-0G4-09-1 1301Cb18?9 II
sitt to a depth of about t7 feet o�erlying stiff to very stiff silt. The underlyirtg silt laycr was
encouncered to#he�ottorn of#he baring aL a depth of about 21.5 feet.
14�ulfa-Use Turf Fietd and BasebaII Fieid. Boring B-I2 was drilled o:�the slope to the north
af the proposed �elds. Boring 8-12 encountered about 3 fcet of compressible organic silt
pver�ying about 3 feet of inedium dense sandy silt. :�7eciiurn dertse to very dense siity sand soils
w�re encaursier�d b�low a depth ofabout 6 feet.
Ground Water Conditions
We observed ground water seepage in �ve of the borings (B-1, B-�, �-�, B-7, u�d B-S}
drilled at thc site, aixi moist to wet soil layers in three othcr borings {B-2, B-1 1, a.nd B-12}, No
ground water seepage or wet soils were observed in the other borings.
Based on our explorations, ground water seepage appears to be preser�t wit;nin sandy 3ayers
within the lacustrine deposits and mare cammonly in sandy iayers lncated below the [aeustr�ne �!,
deposits ar�d o�er the dense, less permeable gtacial till soils, Crround uvatec seepa�e is also I
present as perclied watcr on top of the s�allow low permeability silts as evident by wet surface �
conditions in the north portion of the site, Borings B-4, B-5, B-7, and B-� cncountered ground
watcr seepa$e at depths of i3, $,5, l I.S, and 12.5 feet bgs, respecti�ety, within sandy Iayers
u�derlying #he softer lacust�ine dcp�si#s, but overlying very dense ti11 or hard silt. Boring B-1
encountcred grau�d water at a depth of 9,S feet in a sand layer wit�iin t��c lacustrine deposits.
Moist to wet sails were observed in a silty sand layer in B-2 at a dcptl�of aboat 9,5 fes#, in B-I i
' in silt and silty sand between depths af at�out 4 and 9 feet,and in B-I2 in a silty sand 3ayer frerri a
depth of aEsout 6 to 7 fee�,
Graund water levels at the site should be expected to fluctuate as a fitnetiot� of seasona)
prccipi#ation, ar�d other factors. We expect thai the ground water scepage levels observed in the
sandy layers above the glacial till across the site are (ikely near their highest levels, This
expectation is basEd on the #irnc of year our cxplorations �vere completed and #he r�mount of
precipitation xecei�ed in the Pu�et Sound region tf�is past wintcr. We also cxpect that wet ground
surface conditions will persist in areas where 1ow permeability silt underlies the sod and rest�ic€s
infittration of rain and irrigation water,
CdNCLl�SiQNS AND REC�NICI�I�NDA1'iQN5
GENERAL
Based on the results of aur explorations, laboratory testing and engineering analyses, we
_ canctude that the site can be satisfactorsty developc� and the building supported on shallow
founda#ions, as proposcd. Howcvcr, speciaE consideration must be given to building fou�zciatioa
and flaor slab support for tfie two bu�ldings because coFnpressible soil is present at shallow depths
- in t�e bui[�ing area.
Go�npressible silt, clay, and organic silt cxtcnding from near#he ground s�rfaee to 13,5 feeE
or more beZow the exiting ground surface is preserit under#he proposed build�ing areas. 'l�e silt
and clay will compxess wr�der fo�ndatson and floar slab loads in the building arra and#o a lesser
dsgree below• paved roadway and parking areas depending on fnal site grades. Iang-#crm
G e u E n g i r r e r s � �ite Na. 2fl74-�?�4-QO-]13D�A61849
secondary wmpression of the organic siit which was encountered at relatively shallow deptl�s
will occur over the[ife of ihe siructure and is more difficult to predict. We therefore recommend
that Lhe compressible organic silt be removed when ene�urnered in footing are�s and be replaced
with structura! fzlt. Bccause the compressibEe si�t and cIay soils extend to depths up [0 14 feet, we
recommend that a Z-foat thicicness of the compressible soils be rcmoved from faoting areas and
replaced with structural filI to reduce the risk of unacceptahlc magnitudes of post-constructia�
sett�emenE.
The near surface on-site soils inelude silt, organic silt, elastic silt and lean clay that are very
rnoisture se��sitive and will be difficult to operate heavy equipment on in a[l but Lhe driest
��eather, It will also he very diffieult to achie�re adet;uate compacdon with thcse soiLs to allow
their use as stcuctura!�il due io their fine-grained composition and high in-situ moisture contents.
Thcrefore, we recomrnend that you plan to use clea� imported granular structural f�ll for all ,
building pad, roadway and parking area filt. It wiil be neeessary to irnport fill for use in much of
the utitity trcnch backfifI to replace ihe unstiitable silt and organic silt when eneountered within
these areas.
It may be possihle to seleciively use the most suitable ai site soils for use when grading thc
ball field areas. Hawever, due to the high rnoisture content of#hc soils, discing and aeration oi
the soits will be needed to dry them su�f'iciently to achieve proper compaction.
The following secdons af this reparE present our conclusions and recommendations for site
devclopment,foundation sapport and performance estimaies of Lhe proposed structurc.
SITE PREPARATION AND EAR��WaRK
D�molition '
At this time we understand that Lhe only building that will remain is the newer classroom
buiiding on the southwest partion ofthe site, We recommend that atl buitding foundations, sept[c
systems, utilities, p�vements and other unprovements associated with the eYisting strucivres be
removed from withia the proposed building and pavement areas, Any depressions created by the
remv�al of these facilities shouid be eleaned free of loose material and filled witfi structural fill
compacted as deseribed in a subsequent section of this report. If not removed from the site, we
recommend that abandoned utilities around Lhe proposed buiEding pads be grouted full to pre�cnt
potential unwanted migration of watcr or caIfapse. 'Ihis would include abandoned stonr►, sewer,
�anitary sewer, and water tines 6 inches or greater in diameter,
Clearing ancE Site Prepara#ion
We reconur�end that proposed pavement and building areas be stripped of all existing
vegetation, sad and root syscems, �1Ic recommend that trees, stumps, brush, sad, debris, and
-. topsoil be cicareti from the proposed building and pavement areas,and areas that will receive new
fills; The topsoil materiats can bc separat� and stackpiled for use in areas to be landscaped.
Debris shoald be re�noved from the site, but orgar�ic matcrials eouki be chipped/eornposted and
also reused 'tn landscape areas, if desired. Based on our explorations, the depth of stripping
required�vill generally be an the ocder of b 'tnches.
G a o E n g i n e a r s � FileNo. 2074-i304-00-EI30'�46i899
It may be difficult to oper�te heavy equipmciit on the site be�ause of the lacustrine silticlay
deposits that will be exposed at the surface after stripping, Wc recommend that wide srack dozers
be used to ca�splete much of the site s�rip�ing to avoid significant dis#urbanee of thc undcrlying
sal if it is to remain 'tn piace. Yf the stripping opera�ons cause disturbaneL of the underlying soit,
addidenal exca�ation may be ne�essary. Disturbance of the shallow subgrade soils should �e
expected if site preparation work is done during periods of wet wcather or wl�.en the subgrade
soals are still wet from seasonal rainfalt. We therefore reeommend site gsading ta3ce pt�ec ducing
the drier summer months {July through September} to reduce graciir►g cosis. Material from ih:.
strfpping ope�ations should be sent offsite for disposal or used for landscaping purposes.
We atso recommend thai the lacustrine deposits exposed at subgrade elcvation in pavement
areas be disced to aerate and dry the soil prior to compacting it to a firm unyielding condition.
The site should be graded to a slightly crowned surface once stripping has been cornpfeted,
Th'ss grading should bc done to enh�ce drainage fro�n ihe site and proposed buifding areas, and
to prevent ponding of water in areas to receive any additional fifl.
'i'hc exposcd subgrazles in building, roadway and parking areas should be evaluated as �e site
grading is completed ic�each area. Proofrotling with heavy rubber-tired eomtruction equipment
sl�ould be used for this purpose, if practicable. The site shouid be prapfrolied only aRer an
extended period (at least t�vo �veeks) of dry �veather. Probing should be uscd to evaluate tlie
subgrade during periods of wet �veafher or tvhen the subgrade soils are more t�ian two or
three perccnt wetter than their opiimum inoisture ca+ttent. Any soft areas nated during
proafrolling or probing sliould be excavated and replaeed with cotripacted structurat filt. We
rccommeiid that exposed subgrade in walkway a�as be evaluated by probi�tg, or by prc>ofro[ling
if practical,
Once the subgr�a�de in pavement areas has been prepared, a11 traffic exeept that requircd to
place subsequent layers ef maierial should be kept off the area untii paving is completed. Wc
recornmend that ternporary roads and taydown areas be constntcted to reduce the risfc of
dis#urbing the subgr�e soils, Temporary roads should eonsist of 12 to i 8 inches of quarry spalls
or clean granular strueturat fill placed over geotextiie fabrie, The geotextile should be a woven
fabric intcnded for soil separation and reinforeen�ent t�vithin roadway emba.izl:�ne3�ts, such as
Mirafi SflffX or Aznaco2002.
The reeommended paveinent sections presented in a subsec�uent section of this report is not
intended to support heavy construction Lra�'ie, If ali or any part of Ehese pavemcnt sections is
placed whiie building eonstruetion is still in progress,these areas sj�ould be barricaded and roped
off to prcvcni vehic�e access, This is to reduce the risk of softe�ing of the subgrade,
contaminaiion of the subbase 2u�d base eourse matcrials soils, ar pa�ement ftiilure, The use of an
asphalt treated base 4ATB) pavernent section for temporary road«�ay�s is discussed belo�v under
"Paven�ent Desien."
G e o E n g i n e c r s g File No. 2ES7�S-00�-OC.1134'�051899
Sedimentation and Erosian Cant�al
in aur a�inian, thc e�asian potent� af the on-sit� sails is law to mad�rate b�cause of the
relativcly flat site gracies, Canstructian activities iuotuding stripping and grading will sxpose
sails to the erasional effec#s of vvind and water. The amaunt and patcndal impacts af emsion are
partly related to the tiirae af year that c�nstruct'san actually accurs. WeE weather cansiructiaa wilF
increase the amaunt and exient af erosion and patential se�imen#at'san,
Erasian�d sedim�entatian cantral measuxes may be implemented by using a combir�atian af
intcrceptor swales, straw balc barricrs, sili �ences and straw mulch far t�mporary erasian
pratectian of exposed soils, ��cisting starm water systems and o£f-site areas shauId bc pratceteci
during constructian to reduce the risk af sedimentation. All distu�bed areas should be finish
gracied and seeded as soon as prac#ica� ta reduce the risk of erosion. Erasian and sedimenratian
control �neasures shauld be instalted and maint�incd in accordance witt� the requircrnents af the
Citv aF Rentan.
Struc#urai Fiil
All nev�+ fills in building and pa��ment areas sl�auld Ue placed and compactcd as structural
fitl. The suitabiliiy of soil for use as struc�ral fill will depend oa� its gradatian and maisture
content, ln o�c apinian, �Eie lacustrine silt and clay sails encouncer�d in our expiaratians s�auld
iiot be consideced for use as st�ictura! £'ill. These soils and the silty sand and sanc�y silt sails cut
fmm t3k�slapcs narth of the ball ficlds and east af the existing buildings rn�y be used as fill in #hc
ball fleld axeas provided that proper moishire conditioiung anc# comp�ction are achicvcri. This
t�rill tikely require discing and drying af the sails during warm, dry weadter far accep#a�le
placement and c�tnp�ctian. We recammend, thercfare, that the pra�ect be pla�ned ta includc
imparEing strudural fll io replace exca�ated sails in all utility irench excavations, and £or
achicvin$ grad� and replacing the camp€essible si�t an� argas�ie silt remaved fram thc praposed
building�reas.
We recammend that al�impo�ted siructural fill consist of sand and gravel cantaining less than
3 percent fine.s (material passing U,S, Standard ?�a, 2�Q sieve} by weight relative to thc fractian
a�' the material p�ssing the 1-inch sieve. This material should be free af debris, bF$�I1iC
can#aminants and rock fragments �acger than 3 inchc�.
All structur�►1 fill placed to suppart fountia.tions and f�oor slatrs shauld he compacted to at
least 95 percent af the maximum dry density (II�DD}, per ASTM D-1557, Pavemsnt ar�a fill,
including tati�ity trench backfil�, should bc compaci�d to at least 9�3 peccent aF 11+�DD, except far
- thc upper 2 feet below finished subgradc sur£ace, W�11CI1 should be campacted ta at least
95 percenL of 11�DD. Strnctural fill to suppart walkways s�auld bc ptaced after thc subgrade is
evaluated as recammended above and be campa�ted to ai least 94 percent vf MDD, �ill pla�ed iu
the t�all fi�ld areas shauld be compacted ta at least 90 percent of MDD.
Str�etural fill shauld be placed in laase �ii�s not exeeeding 8 inches in ihickness. Eac� li�t
should be ca��iitianed ta the p€aper moisture conteni and compaeted to the specified density
befare plac�g subsequent tifts. We rec�mmen$ that a repres�n#ative from our firm be preseni
Cr e e E n g i n e e r s } File No. 2E�74-CO�t-QO-11301061894 j
during proofrolling and/or probi�t�; of tl�c c�.poseci subgracie soils in paven�cn: areas and
place�ncnt af struc#ural ftll, flur rcpresentati�c wii� evaluate tf;e adequacy af the subgrade sails
a�d 'zdentify areas needing fi3rthcr wark, perform in-place tnoisture�ensity tests in t�e fill to
detertnine if the campactioa specifieatians are bcing met, and advise o� alty madi�cations to
procedure which might be apprapriate for the prevailing conditions.
Open Cu#Exca�atians
The stability af ogen cut slopes is a function of soil t}�ge, ground water leve6, slope
inclination, slage height and nearby surface toads, 'Fhe use af inadequately designed open cuis
could impact die stabi�ity of adjacent work areas, existing utilities, a�d cndangcr persor�neL In
our opinian, tl�c contractor will be in ihc bes# gasttian to ahservc subsurfacc conditions
canti�uous€y Lhroughout the canstruetion pracess and to respond to variable soiE and graund
water canditions, ?herefore, the contractar shauld have the pcimary respansibility for decidinb
whether or�ot to use opcn cut siopcs raLher than same forrn af temporary exca�vation support, and
for establishing t#�e sa� inclinatian of ti�e cut slopc, All opcn cut sl�pcs and temporary
excavadan suppott should be constructed or installed, and rnain#ained in accar�iance wiih t��e
re�uire�nents o#'Che appropriate gavernmental agency.
For plannin�pusposes anly, we reeommend tl�at terrEporary cut slapes be no steeper ihan
1,SH:1� (hariza�tal;vertical) in thc existing �Jl ar lacustrsne deposits. St��ble cu# slopes in tl�e
corrmxessible lacustrine silt, c�ay, and organic sift laycrs wiil bc partially dege�den#os� the time af
� year consiruction occurs �td on ground water condi#ia�ts. Dependiug an thc ground watcr
conditians du�ing contstructioi� stable sloges in t�ese soils could vary front about 1.SI-I:1 V to
3H;I V, Accegtable slope inclinations should be determi»ed during cons#ruction and sl�oulc3 be in
accordance with QSHA and WISHA guicfetines.
The above guidelines assume that surface �oads such as equiprnent loads and starage loads
rvilt be kept a su�'icieiit dis#ancc away from ihe #ap of ihe cut so iha# ihe stability of the
excavation is not affected. We recommend that ihis dis#attce he nat less than thc depth af ihe cut.
It sl�ould be expected that eacca�ation faces wi11 exper�ence svme s�oughing and raveling.
Benns, swales, or d.rainage ditches should be installecf around the perimeter af each excavation co
intecaept surfac�run�ff and reduce Lhe patentiai for#Irnv over the top of slopcs,
So�ne ground water seep�ge may be encountered in tl7e cxcavations dependin� on ihe time of
year, We expect that ditching and sutrtp pumping during�construetiait will bc su�I'icient to keep
water frvm panding in relatively shallatv cxcavation,
Permanent Cut and Fill Slopes
. We recommend that any perrnanent slapes constructed in the l�c�strine d�pasits be
� canstructed at 3H:1 V,ar flatter, Flaiter slopes might be considered far easc of mainta�ance.
Unpratected slopes will b� subject to eroxion until a protectirre vegeta#i�e cover is weil
establish�d. Therefore, we recommend#hat any slope surfaces be plante� as soon as practic� to
G e o � n g i n a a r s �� Fi1e No, �C^4�G4-:�U-J k3�`L�616�9
cninimize tk�e potentiaf for crosion. A ternporary covering, such as jute mesh, should be installcd
on the slopes as necessary until the vegetativc cover has talcen effecx.
Appropriaie drainagc measures, as dcscribed bclow in ihe "Drainage Considerations" seotion
of #his report, should be imptemented ta collect and control sur#'ace runoff and ground w�ter
secpage.
FOUNDA�'ii?N SEJPP�RT
We recotnmend tha#the new buildings be supported on conventional spread foatings bearu�g
on a pad of stractural fill, Exterior building footings shoutd be supported on a pad of structura[
fill with a minimum thickness of Z feet. Column footings should be supported on a pad of
stzuctural �fill with a minimt�m #hirJcness of 2 fect or one-half the foating width whichevcr is
�rcater, The structural �ill pad will provide more �iform bearing support ihan the existing soils
and wi3t reducc footing settlements, The zoa� of stractural fill sho�ld extcnd laterally beyond#he
footing edges a horixontal distance at least e�ual to one-half the tl�ickness of#he fill. This �nethod
of support lias proven s�ceessful an a large number of projeds in similar sail conditions araund
the Puget Sound.
To reefuce the potential itnpacts of diffe3rentiat settlement where building footi�gs extend into
areas aecUpied by existing buildings, it may be necessary to increase the thiekness of structural
fill below #ti.c fvotin�s to transition into t�iesc areas that have been loaded by the existing
stracturc, We recommend that additional evaluations be completsd after final foundation �oacis
have bcen dctermined, Depending on thc results of the evaluations it rru�y be necessary to
campleted additional cxplorations to deternline #he thickness of fill, is any, be€ow the existing ,
buildings, It inay also be possible to devetop additional reconimendations for the stsucturai fill
ihickness tr�nsition fl�at can be vcri�ed by completing test pst expforations during eonstn�ction ;
wiihin ihe areas of#.he existing buildings.
We recosnmend that cxterior footings be founded at least I8 inches below lowest adjacent �
finished gra�de. Ti�e top of interior footin�s should !�e founded a minimum of 12 inches below '
bottom of slab. T4ic recommended a€lowable bearing pressure for footings supported as ;
recammended is 2,€?04 psf. The allowable soil bearing pressure applies to the totaE of de�d plus
long-trrm live loads ar�d znay be increased by up to onc-third for siiori-term live toads such as �
wind or seismic forces.
We estimate tha#the total sel#iemeat offootings founded on st�ructural fill overlying lacustrinc
deposits as described above, cvill be less that� 1-inch and that post-consiruction settlement will be
_ iess than %z i�eh. Pos#-construction differential setttcmen# �ctween equglIy loaded eolumn
footin$ or along a 25-foot section of continuous wali footing should be less than '/s-inch. We
expect much of the footing settlements will occur as loads are appliec3. L.00se os dishsrbed soils
not re�toved fro�n the footing excavation prior W placing conerete wi11 result in additional
settlement.
�+Ve recorrunend thai ait footing exca�ations be evalua#ed by a representative of our £�rm
imrciediatcty before atny structur�ci filt, mud mat, steel ar concrete is placed, to e�alua#� if #he
d c o E n g i n c e r s �1 Filo No, 2474-004-40-1130105I849
wcrk is being completed in accorclanee with eur recommendations and that subsurface conriitions
are as expecied.
LATERAL I�ESISTANC�
Lateral loads can he resisted by passive resistance on the sides of thc faoti�gs and by friction
on the base o�the fobtings, Passive resistance should be evaluated usi�g an cx�uivaient fluid
dcnsity of 340 pounds per cubic foot (pcf} where footings are surrounded by structural filE
compactecl to at �easi 95 pereent pf Mi3D, as reconvnended, Resistarsce to passive pressure
shaiilrl be caiculated from the bottom of adJacent f]oor slabs and paving or betow a depti�of 2 feet
w�ere the adjacent area is unpave$, as appropriatc, Frictional resistance can be e�alusted usiiig
0,4 for the coefficient of base friciion against footinss, The above values incorporate a faetor of
safe#y of about 1,5, �
FLOOR SLAB SUPPORT
We recommend tt�at floor slabs be support�ri on at le�si a l 2-incli thickness of structural f 11
placed anri compacted as recomrtiended above in the"Site Preparaeion anci Earthworlc"sectior�. �f
prcvention of mois#ure migr�tion through the s[ab is essencial in the b�ilding, (i.e., in portions ef
tlie builriing areas where an adhesive will bc used to aitach tile or carpeting, for storage areas, and
for enclosed areas), a vapor retarder such as plastic sheet�g should be ir�stalled betwcen t3ie slab
and the gra�el base course. It may also be prudent to apply a seater to the slab to further retard
di� migration of mois#ure through the flflor, A 2-inch t�iick layer of fine to inedium s�nd
conta'tning less than 3 percent flnes m�y be placed over the vagor retander to protect it c3uring slab
construction and to airi in unifot�t�i curing of� concrei�,
RETAI�ING INALLS �
Retaining wa11s that are typically not consEra�ned from rataEing oui«�arti should he desi�ned
for a �ateral pressure based on an equivalent f�uid dcnsity of 35 pounds per cubic foot (pcfl.
Walls that arc typically constra�ned fram rotaEittg outwarrl, shou}ri be desi,gned for a latcral
pressure based on ssn equivglent fluid ciensity of SS pcf Heavy compaction equipmcnt should not
bc operaf.ed adjacenE to the walls wiiliin a distarsce equal to the height of the walls. The fill ���ithin
this zone should be compacte�with re]ative]y light,hand-operated niechanical equipment,
Positive drainage should be provided behind retaining wa11s by placing a zone of frea
draini»g sand and gravel (eontaitting less than 3 percent fines for the fraction passing the '/,-inch
- sieve) against the wail. This drainage zonc should be a.t least I2 incl�es wide (measurcr!
horizontalty) aud extend along the enrire height of the wal�, Perforateci pipe must be installed at
the base of this drainage layer and be connected to tightiines that dir�t the flow tca thc storm
=� drain or other suitable disposal poin�,
Pasaive and frictional resist�sce acting on portions of the walts and footings should be
evaluaicd as discussed above in the "Lateral Resistance"se�tion of this report.
C e o E n g t n e s r s IZ Fife No 2073-004-aQ-1 1 3 0106 1 8 44
PAVEMENT �ES1GN
'I`he exposcd subgracic in pavement areas shouEd be prvafro€led ar atherwise examir�ed as
discussed above in ihe "Sitc PrcQaration and EarEhwork" sectian ta dctect areas of saft subgr�de
ar unsuiiable sails. This is cspecialty i�nport��t where the laeustrine deposits e��cist 6elow the
pavement areas, Soft or disturt�ed areas which dcvc�ap in Lhe subgrac�e should be rernoved and
rq�laced with granular fitl comgacted as recommendcd ta provide ac€equate pavement support.
'T`#�e #hic�ess of addiiianal sand and gravel fill required wilt dcpend upan the firmness of the
subgrade at specific locatians and should bc evalUated dur�ng constructian.
We recommend that the pavement sectian in autornabile parking areas consist af at 3east
2 inche.s of C[ass B asphalt concretc, 4 inches of clean crushcd ruck hase, and I2 inches of
subbase overlying a geatextitle for svi� separatian and ac3ditional subgrade strength where
eampressible silt and ciay arc cxpased at subgrade elevation, In roadway and bus
loasiinglparking areas,the minimum thickness shauld be 4 inches of asphalt concrete� b inches of
crusl3ed rock base and 12 inches s��bbase aver a geotextile. "I'�ie subbase material should meet the
requircmcnts previausly speeified far gradatian of struciural fill. These pavecnent sections
rcquirc that #he subgrade is prepazed as recommended and that pavernent caitstruction is done
during a period of extended dry wcather.
The crushed rock base caurse and subbasc shauld each be campacted to at least 9S �ercent of
thc maacimum dry density deterrnined in accardanec with ASTM D 1557, �t is impartant ta
paverrient performance #.�at backfill in �ti�ity trenclies located in areas ta bc pa�ed alsa be
� compacted as spec��ed far structural fiil.
All new Class B asphaEt concrcte pavement materials and placement sbauld gencrally
confarm #o Sectian 5-04, Washingtan State Departmcnt af Transpartation {WSDOT)
1995 Standard Specificatians far Road, Bridge a�d IVlunicipa� Gonstruction. AsphatE con�retc
should be compacicd to at lcast 92 petcent af Rice density. All crushed rock should canfarm to
Soctian 9-03,9(3}of the Stanrfard SpecificaLians,
The geotextile should be a woven fabric intended far soil separatian and reinforcement in
roadway ernbankments, Mira� SOQX and Amaco 2002 ar+c two such sui#abte geatextilcs far this i
applica#ion. Similar gcatextiles are avaiiable from oi�er manufacturers.
It may be desirable to place aspt3alt Lreatcd base {ATS) in piace af t�c base coursc layers if
permanent roa,dway alignrnents will be used for access durin� cans#r�etian. '�"his will be
particularly important if building eonstruction continues into #he winter seasan asid raadway and
parking areas have not yet becn pavcd, T'he ATB witl, in conjv�ciian with the subbase, pravide a
sectian less susceptib�e to damage than the base course and subbase layers anly.
We recommend that this alternativc pavement section in automobile parking areas cor�ist af
at least 2 inches af Class B asphalt concrete, �inchcs af ATB and 8 inches af subbase avcrlying a
' geotextile wherc campressibie sih and ciay are exposcd at subgrade ele�aiian, In roadway anci
bus lcaading/parking areas, #hc minimum t�iclmess' stiauld be 3 xnches of aspha�t concrete,
6 iaches of ATB and 14 inches of subbase overlying a geote3rtile. It is i.rr�portant ta realizc that
some dama�e wil! likely occur to the ATB and subgrade dariag constructivn and repair rr�ay be
G e a F, u g i n e e r s �� File h'o, 20:'4-,".04-09•1130166 t 899
I
recessary prior to f�na.i paving. .�=ea.s accessiblc to tteavy construetion tr�c sl�ou�d be timit�d
to prevent excessive damage to the ATB a�id subgrade,
VIFe recammend that the ATB be �valuated by proofrolling prior po placing �tnal pavem�nt.
Soft areas observed during proof rolling should be removed and the subgrade repaired as
recommendeii abave under "S�te Preparation and Earth�c�ork."
SEISM�CITY
Ge�aral
The Puget Sound� area is a seismica3ly acti�e region and has cxpericnced thousands o£
earthquakes in �istorical time. Hawever, only five to �0 of these are typica�ly felt bec�use tlxe
majonty o€recorded earthc�uakes ara smal�er than Ric�iter magnitu�e 3. Seismiciiy in#his region
is attributed primarily io the interaciion between the Pacific, Juan dc Fuca and �iQrth American
plates. The luan de Fuca plate is subducting besse.�th the N�rth Am�rican Pf�te, Eaclt ycar 1,441Q
to 2,000 earthquakes occur in Qregon and WashingDon.
�n recent years two large earthquakes occurred which resulted in sonzc liquc�action in loosc
alluvial deposits and significant da�nage to some structures. The first earthqu�tc�, which was
centered in the Qlympia area, accurred in i949 with a Rich#er magnitude of 7,1, The second
earthquake,which occurred in I955, was centereci 6ctw�en S�attt� arid Tacoma alid t;ad a Riehter
ma�ni[ude of 6,5,
� Uniform 9�itding Cacle (UBC} Site Cae�cient
The Pug�t.Sound region is designated as a Seismic Zone 3 in the 1997 editiot� of the Uniform
Buildir�g Code (UBC}, For Zonc 3 locations, a �ci�mic 2one �'actor (Z) of�,30 is applicabl�
based on UBC Table Ib-I, ln our opinion, the soil profile at t�e s'stc is b�st c�aracter'sz�ci as
Tv�e So, �aseri oii UBC Tabl� 16-J.
aesigr� Earkhquake Le�eis .
The key seismic design para�ueters are the pealc acceieration and the Rcht�r magr►it7�de of the
eartl�quake, In ge�neral, a �csign earthquake is chos�zt bas�d on the pro�ability that t.hc �iesign
carthquake will not bc cxcceded o�cr a given time period. 'i'he l�ve] of seismicity r�commended
'vn thc 1997 edition of the UBC ��r h�man accupancy bui�dings is an ea�#hquaice with a 10 percent
probability of being exceeded in a ��-year period. 'i'he design earthquake event that corresponds
to this probabitity is an earthquake with a Itichter magniE�de of 7.S anii a peak horizontal gound
_, acceleration of approximate�y 0,3g.
Liqu$faction PotentiaE
LiyuefactiQn is a condition �where soils e:�p�rience a rapid loss of int�rnaf stre�zgth as a
conseqacnce of strong ground slfalcing, C`iround se�Element, lateral spreading andlor sand bQils
may result frocn soil liquefaction, Structures supported on lxquefiabEe soiis can suffsr foundation
sdtlement or la�eral moveme�t dur�ng earthquakes that may be severe�y damaging to the
��F uC`�VS i
G e a E n g i n e a r s 1� File No, 2074-OC9-00-1 i301061899
Conditions favorable to (i�ucfaction occur in ioose to medium dense, clean to moderately
silty santi that is @elow the grouud watcr table, Ground water was observed in five borings a.s
discvssed the "Ground Water Conditions" se�tion of this report, Two of ttte borings {B-0 an�
B-S) encountered ground water in dense soils that are not susceptibte to tique�acfio�. Boxin�B-1
encountarcd a saturated approximately i-foot thick sand laysr about 9,5 feet below the existing
ground surface, Boring B-7 encountcred a saturated approximately 1,5-foot thick sand fayer
about I i.5 feet bgs, Boring B-8 encountered a saturated sitty sand layer that was about 4 feet
thiek and located from about 12 to 16 feet below the e�cisting ground surface.
In our opinion, the saturated sand layers encountcred in onr cxploratioczs have a low to
moderate susceptibility to iiquefaciion. Furthertr�on, it is our opinion that the pdeniial
settlement in ihese layers during strong ground shakin�should be less thaza � inch.
DRAINAGE CONSlDERATi4NS
We expect #l�at shallow perc�ed groundwater may be encountered dciring grading, and
foundatiou and utility excavation, Ground water was encovnterari near the propased subgrade
elevation of cc�t areas to be located in the east portion of the site. We antici�ate that this water
can he temporar�ly handled during construction by ditching and pumping from sumps, as
necessary. Howa�er, additional trenches and dewatering efforts may be necessary in portions of
tIic site dependin� on ground water levels at the time of consiruc#ian, All cullected water should
be safety routed to suitable discharge points,
We recommend that perimeter footing drains bc iFlstatled for all baiidings. `�he perimeter
drains should be installed at the base of Ehe exterior footirtgs, Tlie perimeter drains shoul�l be i
provided with clea�outs and sf�ould coi�sist of at least 4-inch-diameter perforated, smooth-walled ��I
polyvinyl chloride(PVC}pipe plaeed on a 3-inch bed of, and surrounded by 6 inches of drainagc I
material enclosed in a non-woven geotextile to pre�er�t fine soil from migratuig into the drain
material. The tlrainage snateria! sl�ould eot�sist of free-draining gra�el containing Iess t.han
3 pezcent fines. 'Ihe perimeter drains s}wuld be sioped to drain by gra�ity, if practieable, to a I
sui#able dischs►rge point, preferably a stortn drain. Water collected in roof downspout lines mast '
not be connected to t}�e f4oting drau� lines and should be routed to apprapriate discharge points in !
separa#c pipe systems. i
All pa�ved and lattdscaped areas shoutd 6e graded so that surface c�xainage is directed away �
from il�c buildings to appropria�e catch basins,
- LfMfTAT#ONS
We have prepared this repoct for use by Renton School Dis�riet No, 4£�3 and members of thc
design tcam for use in tl�e dcsign of the proposed impro�ements. The conclusions and
-� recommendations in this report should be applied in their entirety, 'Ihe data and report shouid be i
provided to prospec#i�e eonVactors for bidding or estimating parposes; but our rep4rt,
couclusians and interpreta#ions should nat be cotistrued as a warranty af the subsur£ace
canditio ns.
Q e o H n g i n e a f a iJr rile No, 2074�OQ4-OQ-1 L3816d1899
The project was in the preliminary design stage�at #he #ime this report was prepare�, We
cx�ect that additiona� consuttafiion will be neeessary d�ring clesign developrnent. Additional
consultation is especially important for fucther evaluatiou of potential settlemern a�is� building
performance. �f there are any c�anges in ttfe gr�des, location, configuration, loads or type of
constructioex pl�ned, the conclusions and recommendatio�s presented in this repart might not be
fully appIieat�le. If s�ch changes are m�de, we should be engaged to review vuc canclusions a�d
recorr�mcndations and to providc wriiten mo,di�cation ar �erification, as apprapriate. When the
design is finalized, we reeommend t�iai we be cngaged ta review those por#ions of the
_ speci�cations and drawings that relate to geotechr►ical cousidcrations to sce t3�at our
recornmendations have been inter�reted and 'unplerriented as intended,
Tfiere are possible variations in subsurface conditions between the locntions of ex�lorations.
Varia#ions rt�ay alsa accux with time, Somc eontingency for unantieipated canditions shoulc! be
in�luded in the projeci budget and schedulc, We strongty recommend tt�# sufficicnt rnonitoring,
testing arad. consultation be provided by our firm during construction to (1}dctern�inc if #he
conditions eafcountercd are consistcnt with �ose indicuted by the e�plorations, (2}pro�vide
recommer�dations for design changes should tlte conditions reveated during�e work c�iffer £rom
#hose ar�ticipated, and {3)e�aluata whether or not earthwork ancf foundation �nstallation activities
comp�y wi#h the contr�ct plan�and specifications.
Wi#hin �e lirnitations of scope, schedule and 6udget, our services hav� been cxecutect in
accordance with generally accepted practices in tliis are�ai the time the report was prepared. No
� warranty or otlicr conditions, express or impiicd, shouls� be understood,
, �r ►
G c o E n g i a o a r s �6 FilsAta. 2074--0t74--l1C-1 3 39146 1 84 4
We trust this provides the �nfarmatian you requirc at this time. We appreciatc the
opportunity to be of servicc ta yau on this prajec� Pleasc cantact us shauEd you have any
questians concerning our findings or recommendations, ar shauId yau require additional
infarmation.
� Respecifulty subinitted,
�/ '�,
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EXP1f�ES 3 4 0� McFadden, P.E, �
SOCi�ie
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YICINtTY MAW
' 9 Gea Engineers
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o� EkP�Ai+��T143N; � �.� ��� . � � � � `�. .$a �.L : �
,
0 8-1 APPROXt�tATE $4Rft�G LOCAT�dN ��o " ��:.�,� .' `�'�� ���`� \ � Rr+4�t 't• • �� 0 80 160
N � . 3 = t ,r
� --^�-- PROPOS�D iMPRaVE��NTS �A�PRQX. �tiCATlOi�} � �' � , '"i '� ' ; :� SCA€�E IEV �E�
%f
Nate: The IocQtians of all features shown are opproximate.
� � StTE PLAN
Q f�eference; Base t�ap Prep�red by p.A. Berg, ING. dated April 28, 1999. Proposed Improvement taken €rorrt �Q �+���r�
� Drowing entitled "�i#fc�ny Pork Elementt�ry Rentor:, Wc�shi�qtan, Prelin'tinary Site P�rtn" #�y Weisrnart Desiqn ��
x GrouQ dated DA�/2D/99. �ft�llRE 2
_ f':. . ' . . , . .. . . . .. . - . . , � _
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� � _APPEN�IX A '� .. . . - � . . ,
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. , - - O o o�E n g i p,a e t s - , " . , Fita No,2Q74-0Q4-OQ-1330 " •
APPEND�X A
�IELD EXPLORATIONS
VVe explpred subsurface soil and gratuidwater conditions a#the si#e by dril3ing tv��el�e borings
{B-1 #hrough B-12)to depthc ranging from 9 #0 23,5 fe�t bclow the existing ground surface. Holt
Drilting Inc, of Puyallup, Washington completed the borings on May S and G, 1999 using track-
moun#ed dzilling equipment with hollow-stem augers.
L,ocations of the borings were determincd in tl;e �eld by pacing or measuring distances from
existing si#e features and/or matehing tt►e contours on the site sc�rvey prepared by ll.A. Berg, Inc.
dated Agrit 28, I999. Ground surface eleva#ions shov�m on t�ie t�oring Iogs are based on the saini
topographic map, The locations of the borings are shown on the Site Plan,Figtire 2,
Ti�e borings were continuously monitaed by a geologist fro�n our fir�n whn visually
examincd and classified the soiis encountered, obtained representative sail samplcs, obscrvcd
ground water condi#ians, and prepared a detaifed log of c�h boring. A 3-inch_outside-diameter,
heavy-duty split-barrel sampler with brass liner rings was used to obtain relaiively undisturbed
samptes fram the borings. A 3Q0-ppund safety hammer (wireline}was uscd to drive thc sampler,
T1�e lslow coun#s resulting frpm drivin� the sampier with thc i�ammer falling 30 incltes are
roughly cqui�alen#to tt�ose from the Standard Penecratipn.Tesi. Tlle n�mbcr pf blows required to
dri�e t3ie sampler the leas# I2 inches, or other indica#ed distance, is recorded on the bor�ng logs.
Soils cncountered were visualty classified in generat aecordance with the classifiea#ion system
deseribcd ii�Figurc A-�. A key to khe boring lpg symbols is present�d in Figure A-Z. 'I'he baring
kogs ar� presen#ed 'en Figures A-3 through A-14, 'I't►e logs are based on our in#erpretation of the
field and labora#ory da#a and indica#e the various types of soils encoun#ered, 'I'�tey also indicaie
the depths at which the soi�s or their chacacteris#ics ehange,althpugh the change might actu�ttly be
gradual. Th:e densities notesl an the boring logs are based on the bIow coun�s, The ground
surface etevations presented pn the boring logs are based on the sitc survcy prepared by
D. A. Berg, Ine. da#ed Aprii ?�, I999. T}ie borings ���ere backfiE(ed in ge;�crai accor�ance tvith
laca� re�Tulatory� requirements,
G a o E e g i n e e r e sdl.-I FiEeNo.2074-OfJ4-00-1130tObt899
SOIL ClA3SIFICATION SYSTEM
MAJQR D#VIS{ONS C'R��P GROUP NAME
SYMBOL
4W WELL-0RADEO dRAYEE,FlNE TQ COARSE aRAVEL
4RAVEL CLESN OAAVEi
COARSE aP POORLY-RRADEO ORAVEL
�A��� Mora Tl�an 50%
SOIlS o1 Conne F�actton C�iYI SILTY C�HAYEL
C#tqVEL
Ratalnad
on Na.4 Slava ►N}TH FlNES
flC CLAYEY oRAVEL
SW WELL-0RADEp SAIVp,fINE TO COAAS£SANO
SANb CLEAN SANO
More Thms 609b • BP POORLY•QAADED SANO
Ratdned on �yjo�e Then 50%
Na 200 Sieva 8M SIL7Y SANO
o�Coxeo Prac�loi+ SAND
Paesa� W1Yf�Flr3ES
SC CLAY�Y SAND
Nn,A 31eve
!NL SILT
FINE gILT AND RLAY 1NOR�ANIC
ClRA1NED CL CLAY
SOILS ilquld llmlt
ORtlAN1C Oi aR4Al�tC SILT,pRQANIC CIAY
Ler�Than 5Q
MH SIL7 oF HlaH PlAs71CkTY,ElAs71C SJL7
l41wa Thcn 5096 51L.T AHO CLAY f�IORaANIC
Patea� CH CLAY OF HIOH PLASTIC£TY,FAT CLAY
Na. 240 6ieve �y�ld LFmli
OQOANIC OFi OROANIC CLRY,OROANIC SIL7
8D ot Mors
HIOHLY ORQANIC SOILS PT pEAT
SOIL PAEOOININAFIT�Y COMPOSEb OF COAt FHAQMENTS CF COAL PRAQ�1EAfTS
{8EE No7E BEIQYVI
NOTEB: 301L 1NOSTVRE MOOIflERS:
7. Fi�ld daralfleatlar b baaed on Neud wcaerdnatlw� oi soll ;n pn. Absa�es of mdstura,duaty.ury to the touefr
gsnard aeaordenca wltfi A9TM p2488-80.
2. Sail d�saidcsaion udrg 1nbelatory ta�to Is In ponernl �0�°� Oamp,but no vhlbla watot
ecaordenes wlth ASTIYI D2487 80. Wet- Vfalda Irae wate►or eaturetsd,usuaEly sdl Is obtdn�f}rom balow
3. Doactiptlans af saY dan�tty ot eo�dRancy ere Erasad on watmtabie
Irterprststla'i a#blow court date, rtsusl appeeranca ot soElr,
andla to�dxte.
4. Fiil banoath mucb of fhs�ite conctsh o}ead}ragmems. The
— ead arigintrtad from rtelaing aperadon� oortduoted oa nearby
p�apartles. The taxtun af tMs materiai vertsr, but cortdsts
ptedomtnantEy of d!t• and smd•dre coal ltagmentr wlth
octatfond gravd•dza irapmarte.
/�;l�� � 8013. CLABSIFICATIOiV SYSTEM
Geo��E��I����S FlGUFiE A-1
v/
f:�soita-l.doc
L.A60i�A3'ORY TES'�S SO1L GRApH:
AL Atterberg Limits S� Sail Group Sy�ol
CP Com�activn (See Note 2)
CS Gonsoiidaiian
�5 Qir�ct shear
GS Grain s4ze
%F €'ercent fines D€stinct Contact Between
HA Hydrometer Analysls 5ail Strata
Si( Permeability
SM Maisture Conisnt Gradual or Approximate
MD Moislure and density Location of Change
SP 5welling peessure Betw�en 5oil Strata
"CX Triaxia!compression
UC Uncortf€�ed compression
CA Chemical analysis � 1lVater Level
Battom af Boring
BLDW GOUNTJSAMPIE �JATA:
22 � �ocation of relatively
B1ows�equir�c!to dri�e a 2.4-inch t.D. und€sic�rbc�i sar�ple
spiit-barrel sampier 12 inches or t2 Q� �.acatior� af disturbed sample
afh�r indicated distances using a
3bQ-paund harrimer falling 3�inches,
�7 Q E.acation a#sarnpling at#ern�t
with�o eecovery
�° 0 Location of sample abtained
B€ows r�quired to drive a 1.5-inch LD, it�generai accardance with
(SpT)sp�it-barrei sampfer'12 inches Standard Penetr�tlor� 7esE
or other indicated dista�ces using a {ASTI41 D-1586} procedures
140-pound hammec€a(ting 30 inches,
26 (� Location o�SPT sampling
atterrtpt with no recavery
�.
Q Location of grab sample
� "P"indicat�s samp��r pushed with
� weigh#af hamms€ar against weigf�t
0 of driil rig.
_ o
`a
a
O
O
� NOTES:
- X �, T'he reader mus�eefer ta the d'€scussion in the repor�text,the Key to Soring Log Sym�ols and the
� e�iarat�on iogs for a proper understanding af st�bsurfac�condltlons,
X2, Soii classificatio� system is summarized in�igure A-�.
p
O
�
O
Q ��� � KEY T� BaRiNG LOG 3YM8��.S
$ 1�����l�n�n�'�rS ��GUR�A-2
'r�,s�'Daa'A BORiNG B-1
I3f�.SCRif''TION
ZVSDFStLSYC �5�7
Conteat I?ensity Blow Crroup Surfaca L•:lavatiort�R,): �371
[abTests (%l fPnl� Count Sarn les SymbaE
� ASYF�'AI,T 5 inches asphalt over brawn sundy fine ta coaesc gravcl{2-;r�ch fl
-`GW subbuse)
ML 8iownish gray silt(sofi,moist)(filt)
MU 1Q6 45 S � flL park�rown arganic silt witlt 3-incli��ood Fragrner�ls(soil to �
:ncdivm ssif� moistj(topsail)
� � ML Browni�h gray silE witlr orangc mo#tlas(stif'�maist}
�z � _
z
fl �
:: SP Gcay�ne send(mcdium densc,wetj I
.�� . 3
ML 8rownish grny silt witli o�cvsionAl coarsc sanc!(stif7;moist){sliglit
I1 � piaSticitY)
Boring co�sipEeted ut I 1,5 feut on(351t3S/99
� Ground wncer cncauntcred ut 9.5 fcct duiing drilling �
u1 w
� 4 w
z �
x �
�
� �� �
. �
q
5
. S
� za
� -
h
�
U1 -
�
g
t� 7
a
_.i
Q
�
25
— 8
�
0 9
� 30
�
0
n Note:See�gure A-2 f�r ex�stana3ion of synthu�s
��kr• L�G O�80R1NG
� �eo��Eng�ne�rs �IGl1RE A-3
TEST DATA BURENG B-2
DESCRIi�"I'EON
Moissurc Bry
Conient Da�ily Blcw Groug Surfacc Gcvstion{I�.)� �372
iab'£c�ls (°!a) (paf� Cm:nE Siun Ics Symbol
� '"'''- SO�] 3-inch so�layer fl
OL $ratvn organic silt(medium sti(�moist)(fill)
�
'::°SM Gtay,61xck and brown silry sund witli Qrganic silt inclusions,
;��� plastic fragmants,orgaaics,and charcoal(mcdiuzn densc,mnist)
' '� (fill)
MD 20 i0U 12 �: :�
�
ML GrF!}'31It WItI1 OIAIk�'C II1�nI1R&�SZI�,I130{S1�
�
f0 �
cs, 3i 9a 12 �
l�I,,
M€.l '
� � '�
w �
:U w
"' :: SM BrowRish gray s;lty tina san�with sih lnyorx and ornngo rnottling � uj
z
x (modiuin�lcnso,n�uist to wet) � j
�
� � I
a 15 - � I
ML� 23 105 2G �:.�.::, _ � I
_ �
:: SM 1lotts: Hnrri drilling nt E7€cet
Grny silty fitte to coar.so sand witli ftr.e 3e coarse g�nvc#(vcry desise,
moist) _
. S
n 20
m
" SU15.5" �]:
D
A
�
J
�
K
so�s" �: 7
J
; T3oring compEekcd as 23.5 fcc4 an O5J(16f99 -
_ i3o grt�tsnd watar encoui�tered�uring dritlin�
25
-- 8
_, � 9
�
� 30
�
V idote��Cee�igure A-2 far expEanatian of.rymbals
hi'��� � LOG OF BOFt1�IG
�e��������er� FIGURE A-4
�r�:s1'Un�rA 80RI[�G B-3
DESCRIP'ffON
Maisiura bry
Content Dens�ty Blow Groug Surface£lcvatinn{R.�: � 369.5
Lab'Fesls (%) �c� Gount Sam les S mbol
� •:- SOD 6-inch sod laycr p
, UUSivt Brown organic silt mixed wiih silty fine to mecfium saud and
' � i accasiaaal nr�anias,raot(cts uncl�vood Ga�;rncnls(soft,r[[aist) -
' i ; (511)
II '
� ��.
Ml} 13 SS 3 � �L Uark brown organic silf(soft,moiat) 1
ML Gray sili witli arangc r�otilutg(atcsiiuw stifCto stif��i�oist)(sligLt
5 p�asticity)
9 �
CL Gray aud brown]csn clay wit}i ftste sund,occasional coars�sand z
and fsnc to cn:trse gravat(sti�;moist)
15 �
10 3
SM �Fatc: Hurd drilling aE IO Fcct
501G" �:.�';;: Gsny silly finc su�id witls coarsc sn�,d and fine to coarsc grazal(vcry
daiso,moist)(tilF) '�
►- Aor�ng coaiplctcd at 1 I.0 feet on aSJ(35ly9 N
� No gtattnd watcr eucottntcrcJ d4riisg dtiiltn� �
� A �
� z
d
p 15 �
• w
0
5
8
rn 20 '
�
�
�
�
u q
�
�
�
25
— e
� o
g9
.} 3U
ti
0
'�' Nata See Pigure A-2 for explanatian o!'symlxiis
��l�� LOG O�BORlNG
� Ge���Eng�neers f IGURE A-5
'T'E4'F DATA 60RING H�i
D�SCRI€'TiON
Mois3urc €)ry
(;untent Uciuity $It�w Grouj� St�rfaca Etevatioei(R,}: t 373
[,aU T�124 (°to} ({�c!} Count S�unplcs Synikmt
� ASPI•IAF.'I' 3 inchcs usphult ovor 3 inchcs saady gravei(subba:s�:} �
C3P Brau a and gray clay with�nc sand and accasional modi►►m sand,
CL ftne gtavet aad waad fragmexts(sofl to medium sEif�moist) _
(fi€1)
1
�
MD 28 93 5 � _
2
MT. Brownish gray siEt wiih£�nc sand and orungc mott2ing(stifl;maist} _
�� 3
M€� a7 iaa t5 �
� �
W : SP-Stv( �Browo fiitc to rttedium snnd with siEt{dcnsc, wct) �
� "" Ground watcr cncountcred at 13 fcct 4 �
z �
7C - x
F– —
tL g
Q i5 - R
Mll i9 t 12 31 ,. �
�;: d
5
ML Cray s't(!widt fir.c snnd 3ayers(hflrd,muis!}
� 6
z �� � -
�' SQ13° � f
'9 t3oristg compleled at 2f,0 feei nn�Sf06f99
y Ground water anenuntered at 13.0 Teet duting drilli�g
i
z
U 7
� - i
�
�
�
25 " I!,
_ 8 �I
>
' � 9
'r �
i
� ivot�;See Figura A-2 fur explanatian of'symhols
�//�� LOG OF BOR3NG
Geo��E.�g�neers
FIGURE A-6
�'�:s't'r�t�'r�. BORiNG F�-S
DLSCW P'f102�
Moisturo 1�ry
(:ontcnt De��ity 81otiv Gmup Surtaec Elcvation(R.J: �.�'73
Lab"E'esis (e5} (pc� Couat Saruplcs Symbol
� ASPHAI.T 2 incl�es aspi�alt ovcr 3 inchcs braivn sancty finc grav�E basc 4
GP Gray sitt�vith 5no sand and occasional organic mattcr(stitl;maisE) -
N(F, tC1I�}�SIEsEIt�fI&S�1GIIy�
1
5
MD 22 l U i I3 ,
2
�L'iraund wafeF encouiEtercd at 8.5 feet perelicd on Eop c�f til!
;a . 3
:: SIvf Atotc: Hurd drilling nt 10 faet
MC3 t0 122 73 ,j;,�,:� Gray sifEy iinc snnd witlt occasional f�ne gravei(vcry dcnss,moist)
(till)
r �'�
u3 �
w t�
�- 4 �
z
� IviL 13rou�n snd gray�enunatcd 6ac sandy�itt(hurd,moist) �
�
. Q 18 �
MD 15 118 72 , a
f3c�riag complcted ai[6.5 fcet ua 05/OG199 5
Gn�und wntcr esico��ntcrod at approycimatcly 8.5 tccE during driliin�,
6
� 20
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N
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u
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t� �
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0
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2S
- 8
� 9
g so
F
O
N 1+toto:Sce Figure A-2 for cxpt8nation afsymbols
���� LOG OF BORI�G
G����Eng�neers ��GUR�A-7
TESTI3A'rA BURIlVG 8-6
DLSCRIPTFON
Moistu:e
Coiitcnt peruity Blow Gtaup Surfare�lcvation(R.}: �373.5
Lab Tests {°lo) (�cf� ConnE Samples S mboi
a ' S0�'] 3-ineE�sad lnycr a
ME. Dro�an,$ray and bIack sitt witlt occasional acgani�motter(tnedin nt
stit�maist)(fiil){sligF�t plasticity)
SM 2Q 7 � i
� . MUSM fiiray sFlt wit�i o�ange rrtattting gcades So fine s�a�dy silt to silEy sand
(stiff,evois!)(sEiyht giasticiEy)
CS. 23 lfl3 i0 �� �,� : : -
AL.
Mi? 2
Mll 23 lU3 17 � : .� � .
1Q 3
ML Browtiish gtay fino sAndy silt witls ornngc mok?ling(very st'sf�
MU . 2Q 148 22 � moist}
� �
w �
u�. q �
I � �
_ �
r ''':: SM i�iata: CsraveJfy drilling at 14 fcet �
� � Dra�v�ish gruy lami»atcd�itYy line sand svitb cecasianal large ure�s �
Q �'' ������� of orange mottEiiig{cnccfiltm densG to dcitsc,anoist) �
M� 24 104 30 .... �
�
5
Bonng aoin�jete�dt tG.S€cet ot��SfOSl99
No graind wuscr ancauntcrcd dtiring driEting
� I
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n
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35
- B
-• o
� &
ti
30
a
`�' T3otc:Sca I`igure A-2 for explas�ali ws of symbols
��� LOG OF BQRl11iG
��`�����II�I*S �1GURE A-8
TEST nATa BORWG 8-7
DESCRIPTION
Moistiuc Dry .
Content Ociu�fy BEo�v Crtoup S3tr�acc Elevation(ft.}: �-375
Iab Trsis (°!o} {pct� Cnnpt Sam Ics Svmbol
� ' S�D 3-inch sod layec d
tviVSM Mixr,�l'�rovni and gray silt with Gne ta niedinm saad and oce�ionat �
finc ta co�sa;gravcl(dcnsc,rrioist}(fit(}(sligl�E plysticiry}
�'. •• � 3
sM 22 3x � �.• , . �
5
2
M`. I3rownish gray sift witii lsycrs of siEty ft�te sand end occasiai�al tinc
gravel(stil�moisi)(sligltt plasticiry}
MD 32 94 12 , �
10 3 '�
Q
:: SP - t'iround wntcr ancounEcred aE 1 E.3 fcet.
� IIrown f ne to medium sand(mcdiuiu dense,wetj �
� q u�j
? tviD 2t I07 (7 ., ML Brot�misl� r;t silt witls la crs of Gtie sand vc sfi mosst sli lit z
� � ..' S Y Y � fY � � )� fi " Z
� plasticityj —
� z
a �� - �
. ,es
ML Browv aud gr�y]a�ninated silt with rine Yaud(vcry denso,iaoixE} c
{semcxited,liwks like sihseonc;bcdding incEined t3Q dt�rees 5
' from l�orizontut)
MD I2 I I S 50l4" ,
Boring comploted at 19.5 fcet on 05/06199 $
� Za Ground wnter encountored at 1 1,5 fect�uring dciliiag
�
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Z3
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_ 8
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34
6
'� I�FoLc:Sae�'igure A 2 for oxgtanatiort of symb�ls
���•• �oc o�eo�i�uc
- �eo���n(�t'neers
�r!` b'� FIGURE A-s
'C£S'I'DA'i'A so���v� s-a
ncsaur��aor�
ivfaistu�e nry
Contcnt 3?ensity Blow Group Sutfaco Elavation{!t.}: t 384.5
Lab Tests {°�b; (pct) Count Sumples Symhol
� OL i inch fo[ast duR'over brownish gray orgunic silt wit�i occasional �
charcael fragm�nts(sofl,n�oist)(fili}
� I�EIt Mi�ced brotivn awJ gtuy silt witlz accasianai roots aLd cE�xrcoflS
fragments(stifT;muist}(Sll�
MU 2B AS 17 � � � � �
� � �
5 CL Brownish ru clu
g y y(mcdium siif�rrtoistj
g � -
z
MH I3rawn silt wit�j luyers of silly finc sand�inedium stit�muest}(slig}it
MD 25 8G 9 � I � ' plasticity)
� � � Dfotc: T�eu coot aE 9 fcet
f0 . � 3
Tv�E•E Brown siit with fina sus�d(mcdium stiff,moist)(trc4 rooc in
MQ 29 93 $ � I � I san�plcr)
�
� :: SM Q Sro��n sitty�ine sond wit1�oecasionat tLin silt layers.(mcdium sti(T, �
w ::::::: wet) u�
z MB 3D 94 9 Groustd wntar encountered aE I2,5 fce:t. d �
� �
T z
� x
0 1 s u�, '
Lu
a
...; hfL Grny lina snndy s;lt wiEh Iayers af fine sancl(very stiff;wet) $
MD ZS 101 27 �
� �� , ML E`itay sil!witlt oceasio�tnl layers of fine satld aiid sihy fttic sund �
rni (stif};moist}{slight plasticity)
ti MD 26 98 20
D
; {3oring com�tcted at 21.5 fcet on 45105/99
� Ground wafer encountered at 12 5 fcet duri�ig drilEing
�
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8
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ti
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n Nota:Sco Pigure A-2 for explanatioil of symbols
-: ���� �oc oF got��vc
�eo��Engineers FIGURE A-�a
TEsr��r� BORi{VG B-9
DESCRFP'('tQAI
tvloisturo Dcy
Ccatrnt Densily �ilow Gmvp Surface Ekvstian(tl.): � 379
Iab'FesRv j°Jv} (pcE� Count St►m les S bol
° •� ASFkIAI.T s Fnz��es sspha�c °
:: 5ivi T3rown ta dark bEown silty fine to caatsc sxnd with Gnc gravcl -
(ma4ium dcnsc,moist)(f�fl)
i
5
MD 9 1 t4 2l � �
2
�Q . :: SM f3rownish gtay silry finc sund wid�coarse sand und occas'sonal finc 3
YO COALSL gTAYE��vcry denso,mo'tst}(ti11}
M17 12 125 90/tfl" �� j
H- v�
u� a
w �u
� 4 �
z �
�-�- ?
u. x
• � t� 0.
Mf7 8 t 14 SDIG" � � n
Horiag compicted et tfi.S fixt an OSlOGJ97 5
No gmund watcr eatcauatarcd during dc�lling
• 6
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25
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30
g' Notc:See Figun:A 2 for explanstian a€symbo]s
��� LOG OF HORING
�eo���n�neers
�tGua�A-��
TFST DATA 80RiNG 8-90
T?ESCRIPTI�N
Moisturc IIry ,
Caittent Beas�ty I3low Group S�rSace E.levatiart(R.): t 378
La6 Tesls (°ro) � Count Saat ks Symbo[
� '.': SQ�} 3-tv 4•inch sod isyer g
�� SM Brown witls Ulack silty fine to medi�m sand(enedium dense,mo'sst)
{�i!(?
:: Slvf Oratigish hroti�n silty finc to caarsc saRd with finro to co�csc gruvcl
SM 8 31 �::::::; (ck:nsc,tsioist) �
� � ° GM 13rown silty linc to roarsc gruve!with tnedium to conrse sacsd(very
dcnsc,maistJ
72 � °
o � o
2
�� S►vi F3rown siity F[na to coarse sand with finc grave[and ncoa�si�>na3
coarse gru��t(vcry dcnse,mus�t}
SOi5.5" •• ....
�:::::::
I3oring campletcd at 4.4 Cr.�t oa OSJ05199 -
jd E�o grou�td watc�ancounicred cluring dci!ling 3
w a
€u w
� k �
2
�
� z
l►- T
Q �5 �
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Q
5
6
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U 7
k ,
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- 8 I
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30
0
''` Aiote;5eo Figere A 2 for axplenation af symhvls
Geo����t�� LOG OF BORENG '�
�En 'neers
`�1I � �'iGURE A-92
TEST i3e17'A BORWG 8-11
D�SCf2IPT�ON
Moistase
Content Den.sity Blow Gsoup Surfaco L�lcvatic�n(ll.)� t i80
iab'1'es�s % {pcf� Covnt Snmplcx 5ymbol �
Q •'• SOD 3•inch sad layer
:; SM Gruy brown silty f�ne snnd utith occasionaF coarse sand and Gne to -
caarse gravci�d orsanic r�tter(loosa, mdstj{tili)
M13 i8 t12 b
�::::::• t
5 ML Dark brown silt with oci:asiunal chxrcaal fragrstcnts(in�dium stif�
� asoist to wai}(rlt}
MD dl 74 7
SM Gray s►'lty tiae sa�►d{laoso,moist to wet) 2
b �
�fl '�i � � MEC Grny silt wid�occsisionaf luycrs vf fine sund and silty snnd(soft to 3
mediusn stiP�moist}
' � I � I
� � I
� 7 � � � � q �
z � � E . �
� z
� —
Q j5 IIorir.g contpteicd af 1-0.4 fcef ua 05/05/99 �
2�€o grounct watcr cncountvred ciaring drilliug W
A
S
� 6
�
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N
�
C3
�
� 7
J
❑ '
�
25
- S
— � 9
� 30
0
`�' NnEe:Scc�guse A Z farexplonatia�of symbals
-� ��� �a� oF so��Nc
Geo��Eng��eers �lGUFtE A-�3
T�Sz'DATA SORiNG B-12
D�scRiP-r�ou
MoisWra Ihy .
Cantent Density Blow Grnu� Surface Elcvation(ft.}; t 3$2
LaU Tc.gt4 {°/a) � Count S¢m�l�s Symbnt
a '' ,SOD 3-�nch sad layc[ fl
OL Brown und darlc browe argar.'to silt{so{!,rnoist)
ML Light brown Fine sariJy sitt with oceasional coarse sand and fl�e
GS, 12 121 23 � gru�el(mediam dense,moist) �
MD
5
IS � •
': SM Brawn silry fine to medium sund w'ttii occnsional firie raots{denxe,
mosst to wut} 2
'�• :: SM �3rown si€ty lina ssr�d;vitf�coursc�and uttd occasional li��c gravel
Mb 10 127 d7 (dcnse to vcry cEenso,moist)
�
1 tl • "'' 3
5016" �':;
� Baring cotnpfcted nf 11 S feoi on QS/b5199 a
� I�Fo ground�vater cnccwntarcd daring drsltir,g �
x 4 �
z �
� z
a �
a 15 �
w
tz
5
6
m 2� '
� -
r
�
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�
U
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�
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_ $ �
� 9
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I�Ioto:See Figure A-2 for cxpfanation af symbols
. :���� �.OG aF BORING
Gea��E��ineers
FIGURE A-'t+�
. . ' ' .. �i ... �. . . . . . . . - .
. . ' I: ... ' . . � . _ ' , .. � . . . . . . . . . . . .
. :� . . ' . � . . - ' '. . . - . . . � � � . � � .
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. ., . .. .�.:: ' , ''. . �' '
•
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. . . • . . � . .. � . . . . ... . � . ' � . . . . , . ..� ' . . , . .
.. �� "' .�. � ' . ' . . , ' ' ' . , .' .. . ' . . ' ' '
f '' . ' . " _ , . . . . '' .. ' ' . . . . . . �. . � . . ' . . ' -. . .� . .
. . "" .. � � . . � I 1 � . , ' , .. ` . .. . . . . �. .
. .. 1 ' ' � _ . . . _ .. . .. . _ " . . . . .. . � , � . .
. . ` .. .�� . . . . ...% ' '.' .. ' . .� � � ' . . � ' � . . ' . . .. ..
-_ _ ' . .1 , `:. • . ' ' ! . .. ... � ' . ' . _�I ' � .. . . _ . '
• . .� .. : . .. .. .. . . . . _ . . . .
.. . . . _... . ' '..i �� . � . .. - . . . .. . . _ � � � � . � ' ,' �.
- -- . . - APPENDiX� � : � �
, �: � . � ' , .: . . ,
� -. . . ,:.. :.. L.A80RATORY TESTING -. ..
� . . .
_.. . _ , :
. . , >, - . . .
_ . . . . ._ •, . . _ . . . .
. . _ . ' ti, k' . ' _. . _ _ ' . .. . � � 1 ' .. '. . . ' ' ' . . .. �� .
.. . . � �j. � � .. . . _ . - .:.. . ' , �. � , ' ' . .
� � � ! i�' � .. . ' - ` .' . . ..... .. ' ... � .. . � - . ' .
_.�' ' _ � . ..� . � .. . " ' - .- . . . . " . ' . . . .
. . .. "` . . _ . . . . . , . .
� � .. � '� . . ' ' � �:\. . . . ' . . . . � . . . . � - . . .. ...
' . . . �_ .. ' .. �.. ' . . . . . . .. . . .. ' ' . �. _ ' . ' ' . . . _ �_ .
'�_ . . . ' • ' .. . :� ' . . . . . ' . . .. . . . .
. . . � . . . � .. . , .
.. . � � ., . . , . . . .
.
, ., ,. ; . .. ,. �. ' . . . .�.- �� j . ' . . ... . . . �
. . � . . ..- � 1. � � ' . . '. ' ' . ' . . . . . . . , . . ..
, .,'. _ . - .. . . , � , ' . - •
'_ _ • .. '.' :_(. .. ' .... . . . . � . . . . :- I . . .
. . � ��� � ` ' .. • � . . .. • ' • . . . � . . � . .
��� . .. . • • .. � . . ' ' ' ' � . ' . �. . . � � .
, .. . . . . . . .. . . .
. � . : .'. '. . _ . . . ' .. . .
: ..' ..�'. . . .' :..:.�� ... . � . - . . . � ' . .
.. ^ � - ' • • _ ' . -- � • � • ' ' . . ' . . ' �:; ' ' , .. . . . • , . .
. ,-� ' • ' •• . . ' . � , .. ' . � .. . . . ' .
' - .. � � . ' _ ' ' ..,` .1 , .. . . . . . . . . . " . " .
.. •1 . . ' " ' . ' . .. -.. � . , ' : ' . . . ' � -.... . ' � : . .. .
' `: .': ; �:°_ �'G.,e o.� �:8'�.�� p"a.r s . ' ' . • � Fiie No. 207d-004�0-I130 ,
. .y" - ' , : � . . � .
, '� _ , .
APPENDtX B
I.,AB�RATORY TESTING
GENERA�
Soil samptes obtained from ti�e_borings were tr�trssported to oux laboratory and examined to
co�rm or madify field ciassifications, as well as to evaluate strength and consolidation
groperties affhe soil. Regresentative samples were se�ected far 3aborttory tcstiicg consisting of
moisture content and den5ity deterrn�ations, sieve anulyses, and Atterberg Limits and
consolidatian tssts. Tlie #csts were pecformed in general accordance v�+�th test methods of the
American Society for Testing and Materials (ASTM)or other apgiicable grocedures.
'�he results af the la6ora#ory tests are presentcd in Figures B-1 thra�gh B-4. 'lhe results of
tl�e moisture canferrt and dry d�nsity determinations are presented on the exploration logs at the
respeciivc samgle deptli in Appendix A.
iliSUA� CLASSIFICATIOAIS
A11 sail samgles obtained from the borings wcre �isualEy ct�ssified in thc field azuilor in aur
laboratory using a systen� based an the Unified Soil Classificarion System {USCS) and ASTM
classification methods. ASTM test method D 24$8 was used to visually classify the soii samples,
while ASTM D 2487 was uscd to classify the sails baseci on labara�ory #ests results, 'Chese
classificatian grocedures are incarparated in the boring logs si�awn in Fig�ires A-3 though A-I4,
in Ap�cndix A.
MOiSTUR� CO�ITENT �ETERMINATiQNS
Moist�re cantents were defermincd in general accordance w'sth ASTM D 2215 for numerous
samgles obtained from the borings. The results of Lhese tests are gresented on #he tags at tlze
resgecfive sample depih an Apgendix A.
DRY DENSITY �ETERAAiNAT10NS
Dry densities were detcrmined performed on numera�s relatively undist�trbed sam}�les
abtained with ihe sgiit-barrei ring sampler in tl�c borings. The tests were conducted in accordance
wiih ASTM D 2937 and ihe resutLs are presented oa the boring logs in Agpendix A at the
res�tive sampte depih.
PARTiCAL SIZE ANALYSIS
Particle size analyses were performed an one sarriple in general accordar�cc with ASTM D
422. The sample was se€ected fram the cut area where the progosed ball fields witl be grac�ed in
order to thc s�itabilsty of the soil for on-site use. The wct sieve analysis method.was �scd to
- determ�ne the percentage of soil greater #han tlis U.S, Na. 204 mesh sieve. The results of the
}iarticle size analysis was gtotted, classified in general accordancc with the USCS, and pr�senied
i»�igure B-1,
G e o � n g i n e e r s Q-1 File No,2074-404-UO-t 130/061899
ATTERBERG L1MlTS
Atterberg limi�.s wer� determined fvr twa lacustrine soil sanzptes, which also were selected
for consolidation testing. The tests were used to elassify the soil as well as ta Iselp detercnin�
indcx propert�es a��d consolidation eharacteristics af the iacustrinc deposits. Thc iiquid liuiit and
thc p�astic lim'tt were determined in generai aecorda�ace rvFth ASTM D 43I8. The results af the
Atterberg liinits are summarized in Figures &2. The plasticity chart reIates tEie plasticity index
(liquid limit mirn�s the plastic Iimit)ta the liquid ]imit.
C�NSOUDATlQN TESTS
One-dimensionai eousolidation tests were eonducted vn two rclatevcly undisturbcd soil
samples tested directly from sings from the split-barrel ring sampler. Tests were conductcd in
B-2 at 10.5 feet bgs and B-6 at 5,S feet bgs. Thesc samples were selected to best characterize Et�e
lacsistrine soils that were er�countered with respect to the proposed building foundations. We
evnducted the tests in general accordance witl� ASTM� 2435, �sing a fixed-ri�g consotidometer,
The primary purpase vf t13e consolidatian tests is to aid in the estimation of potential
consolidatian and secandary settlement E�pon subseq�ent baitding loads. Figures H-3 and B-�#
summanzc the consolidation test resnits.
G e a B n g i n e e r s $-� File No.2673-UOd.00�-13343W61899
i
2f]7A--00�4-0�f2cM:11RBB:mb4 52�199(Sleves.PPt)
U.S. STAi�1ARD56EVESIZE
3" 1.3^ 3/4" 318" 1�4 �#10 ;20 k40 �6Q �10U R200
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N EKPLORATION SAMPLE
SYM90L �UM8�f2 DEPTH SOIL CLASSIFICATlON
* g_12 3.0' Brotin►n fine sandy sift{ML}
_ . i:; , ..
2D74-a�-[1Q RCM:NEBB:mbb 5125l39(Att�stbet9$-PPi�
PLASTECR1f CHART
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N y s�B04 E7(pLpRqT101+E SAMPLE M<715TUR� LIQi11D PLAS7ICI'YY
„„� NUM9Eit D�PTH CotaTErrr{9'o) t,ItuilF(%) 11�CO�X(�'a} SO[LDESGRtPTIoN
�
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r' � B-2 1D_5' 34.9 40 13 Gray 5ilt(ML)
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� B-6 5.5' 27.1 33 �� Gray clay(CL)
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March 16, 2015 i
Project No. KE150128A
Renton School District
c/o Greene Gasaway Architects, PLLC
P.O, Box 4158
Federal Way, Washington 98062
Attention: Mr. Sam Rosendahl
Subject: Document Review
Portable Classroom Placements
Renton School District
Multiple Locations
Dear Mr. Rosendahl:
This report presents the resutts of Associated Earth Sciences, Inc.'s (AESI's} review of AESI's past
project files and exploration logs at schools currently planned to receive new portable
classrooms. This summary of available subsurface exploration information has been prepared
for the eight elementary schools identified by Greene Gasaway Architects, PLLC. Where past
explorations have been identified, preliminary findings, including our opinion regarding the
feasibility of storm water infiltration, are provided.
Written authorization to proceed with this study was granted by Greene Gasaway Architects,
PLLC. This review was accomplished in general accordance with our original proposal letter
dated March 6, 2015. This report has been prepared for the exclusive use of the Renton School
District, and its agents, for specific application to this project. Within the limitations of scope,
schedule, and budget, our services have been performed in accordance with generally accepted
geotechnical engineering and engineering geology practices in effect in this area at the time our
report was prepared. No other warranty, express or implied, is made.
PROJECT AND SITE DESCRIPTIONS
We understand that the Renton School District is proposing the placement (or replacement) of
portable classroom buildings at the following elementary schools:
Kirkland Office � 911 Fifth Avenue � Kirkland,WA 98033 P � 425.827.7701 F� 425.827.5424
Everett Office � 2911 Y:Hewitt Avenue,Suite 2 � Everett,WA 98201 P � 425.259.0522 F � 425.252.3408
Tacoma Office � 1552 Commerce Street,Suite 102 � Tacoma,WA98402 P � 253.722.2992 F � 253.722.2993
www.aesgeo.com EXHIBIT A-11
Portoble Clossroom Plocements
Renton Schoo!DistriCt Document Review
Proposed placement durin� 2015
• Maplewood Heights: 130 -Jericho Avenue SE, Renton, Washington
• Hazelwood; 7100 - 116`h Avenue SE, Newcastle, Washington
• Campbell Hill: 6418 S 124th Street, Seattle, Washington
� Sierra Heights: 2501 - Union Avenue NE, Renton, Washington
Proposed placement possiblv durin� 2016
• Tiffany Park: 1601 Lake Youngs Way SE, Renton, Washington
• Talbot Hill: 2300 Talbot Road South, Renton, Washington
� Lakeridge: 7400 South 115th Street, Seattle, Washington
• Bryn Mawr: 8212 South 118`h Street, Seattle, Washington
We understand that the portable buildings will be self-contained, and each will consist of a
wood-frame building supported on concrete foundation bearing strips. A crawl-space floor
design is expected, without a slab-on-grade floor. We understand that infiltration of collected
storm water is currently under consideration for the proposed portable buildings.
AE51 DOCUMENT REVIEW - FINDINGS
AESI has completed a review of AESI's past project files and exploration logs of the above-listed
sites. The following sections provide a brief overview of the anticipated subsurface conditions
at each site, based on the data gathered during our document review. Copies of previous AESI
exploration logs and site plans reviewed for this study are attached to this report.
Maplewood Heights Elementary School
AESI completed subsurface explorations at the Maplewood Heights Elementary School (ES) site
in January 2012 and January 2015. In summary,these explorations encountered medium dense
to very dense Vashon lodgement till, overlain in places by fill. The Vashon lodgement till is
generally considered suitable for foundation support of portable classroom structures. We
consider the density and texture of the lodgement till encountered in our past explorations,
along with our previous experience with sites exhibiting similar soil conditions, to preclude the
use of infiltration for the handling of storm water runoff at the Maplewood Heights ES site, in
our opinion.
March 16, 2015 ASSOClATED EARTN SCIENCES,lNC.
1PL/pc-K£ISOIZ8A2-Pro�eC5�20150128}KE�WP Page 2
Portoble Clossroam P/ocements
Renton School District Document Review
Hazelwood Elementary School �
AESI completed subsurface explorations at the Hazelwood ES site in 1une, luly, August and
November 2003, and February 2004. In summary, these explorations encountered medium
dense to very den5e Vashon lodgement till, Vashon advance outwash, and Tukwila Formation
bedrock, overlain in places by fill. The lodgement till, ad�ance outwash, and bedrock are
generally considered suitable for foundation support of portable classroom structures. We
consider the density and texture of the lodgement till, and bedrock encountered in our past
explorations, along with our previous experience with sites exhibiting similar soil/rock
conditions, to preclude the use of infiltration for the handling of storm water runoff. The
Vashon advance outwash soils, encountered primarily at the northern and eastern portions of
the Hazelwood ES site, may be conducive to storm water infiltration. We recommend a
site-specific exploration for the proposed portables to evaluate the feasibility of storm water
infiltration at the planned locations ofthe new structures.
Campbell Hill Elementary School
AESI completed subsurface explorations at the Campbell Hill ES site in December 2000. In
summary, these explorations encountered medium dense to very dense ablation till, lodgement
till, and Tukwila Formation bedrock, overlain in places by fill. The ablation till, lodgement till,
and bedrock are generally considered suitable for foundation support of portable classroom
structures. We consider the variability in density and texture of the ablation till, the density
and texture of the lodgement till, and bedrock encountered in our past explorations, along with
our previous experience with sites exhibiting similar soil/rock conditions, to preclude the use of
infiltration for the handling of storm water runoff at the Campbell Hill ES site, in our opinion.
Sierra Heights Elementary School
AESI completed subsurface explorations at the Sierra Heights ES site in September 1993. In
summary, these explorations encountered very dense Vashon lodgement till, overlain in places
by fill. The Vashon lodgement till is generally considered suitable for foundation support of
portable classroom structures. We consider the density and texture of the lodgement till
encountered in our past explorations, along with our previous experience with sites exhibiting
similar soil conditions, to preclude the use of infiltration for the handling of storm water runoff
at the Sierra Heights ES site, in our opinion.
Tiffany Park Elementary School
Our research did not reveal past AESI subsurface explorations at the existing Tiffany Park ES
site. AESI completed subsurface explorations at a potential Tiffany Park ES site, located to the
southeast of the existing Tiffany Park ES campus, in September 2012. In summary, these ,
Morch 16, 2015 ASSOGATED EARTN SCIENCES, lNC.
1Pi,�pc-KEI501?BA2-Prc/ecu��0150�28'iKEi,WP Page 3
Partable Classraam Pfacements
Rentan Schaal Distrrct Dacument Review
explorations encountered medium dense to very dense Vashon lodgement till. Also, our review
of the Geologic Map of King County, Washington, by Derek 8. Booth, Kathy A. Troost, and Aaron
P. Wisher, 20Q6, indicates that the existing Tiffany Park ES site is underlain by lodgement till
sediments. The Vashon lodgement till is generally considered suitable for foundation support
of portable classroom structures. We consider the density and texture of the lodgement till
encountered in our past explorations at the nearby site, along with our review of the regional
geologic map and our previous experience with sites exhibiting similar soil conditions, to likely
preclude the use of infiltration for the handling of storm water runoff at the existing Tiffany
Park ES site, in our opinion. We recommend a site-specific exploration for the proposed
portables to evaluate the feasibility of storm water infiltration at the planned locations of the
new structures.
Talbot Hill Elementary School
AESI completed subsurface explorations at the Talbot Hill ES site in April 1996. In summary,
these explorations encountered very dense lodgement till and Renton Formation bedrock,
overlain in places by fill. The lodgement till and bedrock are generally considered suitable for
foundation support of portable classroom structures. We consider the density and texture of
the lodgement till, and bedrock encountered in our past explorations, along with our previous
experience with sites exhibiting similar soil/rock conditions, to preclude the use of infiltration
for the handling of storm water runoff at the Talbot Hill ES site, in our opinion.
Lakeridge Elementary School
AESI completed subsurface explorations at the Lakeridge ES site in April 1991, January 1993 and
March 1994, and issued a letter dated April 22, 2014 providing our opinion regarding #he
feasibility of storm water infiltratian, based on previous explorations in the vicinity of the site.
In summary, the referenced explorations, both on-site and in the vicinity, encountered very
dense Vashon lodgement till, overlain in places by fill. The Vashon lodgement till is generally
considered suitable for foundation support of portable classroom structures. As mentioned in
our April 22, 2014 letter, we consider the density and texture of the lodgement till encountered
in our past explorations, along with our previous experience with sites exhibiting similar soil
conditions, to preclude the use of infiltration for the handling of storm water runoff at the
Lakeridge ES site, in our opinion.
Bryn Mawr Elementary School
Our research did not reveal past AE51 subsurface explorations at the Bryn Mawr ES site. AESI
recently issued a proposal to complete subsurface explorations for support in design of ADA
improvement at the existing Bryn Mawr ES campus. We recommend that these explorations be
March 16,2015 ASSOCIATED FARTH SCIENCES,lNC.
,pv��-r:E��oszaaz-��o;e�r5�zo.so�zs�x�,�,ti<P Page 4
Portoble Classroom P/ocements
Renton Schoo!District Document Review
expanded to include a site-specific expioration for the proposed portables to evaluate the
feasibility of storm water infiltration at the planned locations of the new structures.
CLOSURE
We are pleased to have had the opportunity to prepare this summary of anticipated subsurface
conditions at the above-listed sites, based on the data gathered during our document review.
We are confident that this report will aid in your design process. As stated above, we
recommend that site-specific explorations be completed for selected sites where currently-
available information is lacking or suggests variability in subsurface conditions. If you should
have any questions, please do not hesitate to call.
Sincerely,
ASSOCIATED EARTH SCIENCES, INC.
Kirkland, Washington
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Jeffrey P. Laub, L.G., L.E.G. Kurt D. Merriman, P.E.
Senior Project Engineering Geologist Senior Principal Engineer
Attachment A: Site Plan and Exploration Logs— Maplewood Heights ES
Attachment B: Site Plan and Exploration Logs—Hazelwood ES
Attachment C: Site Plan and Exp{oration Logs—Campbell Hill ES
Attachment D: Site Plan and Exploration Logs—Sierra Heights ES
Attachment E: Site Plan and Exploration Logs—Tiffany Park ES (nearby site)
Attachment F: Site Plan and Exploration Logs—Talbot Hill ES
Attachment G: Site Plan and Exploration Logs— Lakeridge ES
MprCh 16,2015 ASSOCIRTFD EaRTN SClENCES,1NC.
iPL,/pc—Y.EISG123A2—Pro;ec:s,20?SG?28�t(e5'st�P Page 5
Attachment A: '�
Site Plan and Exploration Logs I
Maplewood Heights ES ��
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REFERENCE:AHBL REDUCE ITS EFFECTIVENESS AND LEAD TO INCORRECT INTERPRETATION.
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v a S S o c i a t e d SITE AND EXPLORATION PLAN FIGURE 2
@ ,��'N e �a E� t �� s c i e: ra �; E� � MAPLEWOOD HEIGHTS ELEMENTARY SCHOOL DATE 1/15
o RENTON,WASHING70N PROJ.NO. TE140638A
associated EX IorationLo
` � e a r t h s c i e n c e s Project Number Exploration Number Sheet
� -�" " � ° ' � = � ' � z a TE140638A NB-1 1 of 1
Project Name Ma.plewood Heights Elementa�School Ground Surface Elevation(ft)
Location Renton WA Datum N!A
Driller/Equi{xnent HandBorinq DateStart/Finish 1l19/��,1/��11b
Hammer WeighUDrop N/A Hole Diameter(in) �,If1ChBS
C N UO � � (p N
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� T �' �� DESCRiPTiON � 3 m 10 20 3o ao � I
Vashon Lodgement Tiil '
Medium dense,moist to very moist,gray,silty fine SAND,some fine to �,
S-1 : . coarse gravel,trace medium to coarse sand(SM). I
� Dense at 1 foot. I�
S-2
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Bottom af expbratirn bwing at 2 feet
No seepage. No caving.
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� � 2"OD Split Spoon Sampler(SPT) 0 No Recovery M-Masture Logged by: LDM
� m 3"OD Split Spoon Sampler(D&M) � Ring Sample S? Water Level() Approved by: CJK
; � Grab Sample �; Shelby Tube Sample 1 �ater Level at time of drilling(ATD)
Q _
aSso � � ated ! Ex IoratianLo
' f e a r t h �c i e n c e s Project Number i Exploration Number Sheet
��,
w.� ; �; � orF � � � � Ed TE140638A HB-2 1of1
Project Name Maplewood Hei�hts Elementary School Ground Surface Elevation (ft)
�ocation Renton WA Datum ��/A
DriileriEquipment Hand Boring Date StartlFinish �/1�1/1.r,�1/1 A/1.ri
Hammer WeighUDrop N/A Hole Diameter(in) a��hes
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DESCRIPTION � � �0 20 3o ao �I
i
Vashon Lodgement Till '
I
Medium dense,moist to very moist,gray,silty fine SAND,some fine to
g_� . � coarse gravel,trace medium to coarse sand(SM).
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.• Dense at 2 feet. I
S-2 . I
Bottom of exploration boring at 2.5 feet I
No seepage. No caving.
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o m 3"OD Split Spoon Sampler(D&M) � Ring Sample � Water Level() Approved by: C��
w � Grab Sample � Shelby Tube Sample i �rater Level at time of dnlling(ATD) I
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m Associated Earth Sciences,Inc. SITE ANQ EXPLORATION PLAN FIGURE 2
a
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N �,.r�:+ � �Y� ---� � MAPLEWOOD NEIGHTS ELEMENTARY-COVERED PLAY AREA DATE 1l12
s RENTON, WASHINGTON PROJ,NO. 1'E120020A
Associated Earth Sciences,Inc. �X loration Lo
. :j,}- 'a ��� /��:� � ,� Project Number Exploration Number Sheet
r= TE120020A EB-1 1 of 1
ProjecF Name Mapiewood Heiahts Elementary- Covered Plav Area Ground Surface Elevation (ft)
Location Renton, WA Datum �j/A
Drilter/Equipment Geologic Drill/Trailer Mounted HSA Date Start/Finish _iJ�7/19,i l��/��
liammer WeighUDrop 140#/30�� Hole Diameter(in)
c m ,�
� � V p � p�j ip �n
� a Q E �,m -� 3 Blows/Foot �
m S E � �` �Em ° �,
� T `� �� DESCRIPTION � � m �0 2o so ao °
8 inches Forest Duff,Or anic
Vashon Lodgement Till(Weatheredj
Very moist,gay,silry fine to medium SAND,with gravel,slight oxidation 2
S-1 stain�ng. 6 � 7
11
5 Vashon l..odgement Till(Unweathered} �
S_2 Wet to very moist,gray,silty fine to medium SAND,with gravel,orange 20
oxidation stvrnng. 2� 50
26
S-3 � �et,gray,siity fine to medium SAND,with gravel. g �
14
12
10 Very moist,gray,fine to medium SAND,with gravel,slight horizontal ��
S-4 oxidation staining. �5 �3
21
S-5 Moist,gray,fine to medium SAND,with gravel. �
w �s� �
Botlom of exploraCron bor'ux,7 at i 3.5 feet
15 �round watet seepage at 5 feet.
20
25
�
30
35
N
O
N
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I
1
2
a
m
�
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O
N Sampler Type(Sl�:
N m 2"OD Split Spoon Sampler(SPT} Q No Recovery M-Moisture logged by: MT
fl � 3"OD Split Spoon Sampler(D&t�1} � Ring Sample SZ Water Level Q Approved by:
� � _ . r' � 1M11�1..�1 �..,.i �i�.�� �[J_:ii'__ �ATr��
Associated Earth Sciences,Inc. �X loration Lo
� a .{� � � ProJect Number Exploration Number Sheet
'�"- ' � TE120020A EB-2 1 of 1
1i1l: i Y��
Project Name Ma�lewood Heights Elementark- Covered Plav Area Ground Surface Elevation(ft)
Location Renton WA Datum N/A
Driller/Equipment Geologfc Dri(i/Trailer Mounted HSA Date StarilFinish 1177/19,1/�7/19
Hammer WeightlDrop 140#/30" Hole Diameter(in)
� N U 0 ,O > � �
o, ta� � � SIOWS/FOOt F
� � E mm � 3
n. S E >, � �? o m
°' m C7� E
� T � DESCRIPTION � � m 10 2o so ao °
4 inches Sod/To soil
Fill
Wet,gray,sitty fine to medium SAND,with gravel,slight orange oxidation �i
S-� staining. 14 �►
21
5
S-2 �
5 11
� 6
Vashon Lodgement Tii!{Unweathered) 4�
S-3 Wet to very moist,gray,fine to medium SAND,with silt,and gravel. �� y�� 2,.
10 g_4 Moist,gray,si[ty fine to medium SAND,with gravel. 4Q
a • sa 2°
Bottom of exploration bwing at 11 feet
Ground water seepage at 71eeL
15
20
25
i �
30
�
35
�
�
�
a
m
ti
�
a
c7
o Sampler Type(5T}:
N m 2"OD Sp(it Spoon Sampler(SP'i] D No Recovery M-�Vloisture Logged by: MT
m � 3"OD Sp(it Spoon Sampler{D&M) � Ring Sample Q Water Level{� Approved by:
S!? Ivl C;rah Samn(e i:`I Ghcfhv Ti ihc.C�mnio� ��ti�8.er Level a;time of drillina i,4TD'I
Associated Earth Sciences,Inc. �X laratian Lo
� � � -�--� � Project Number Exploration Number Sheet
�'�" � TE120020A EB-3 1 of 1
Project Name Maplewood Heights Elementary-Covered Plav Area Ground Surface Elevation (ft)
Locatlon Renton WA Datum tv/A
DrilledEquipment Geologic Drill/Trailer Mounted NSA Date Start/Finish iJ97/19,.]/97/19
Hammer WeighUDrop 140#/30° Hole Diameter(in)
C d w
w tn U p 0 � tD ♦ N ��.
y � L� 01 _1 y B�QWS�F��L }.� �
� � ro� °'a 3
a S � °' o d
� �T `� �� DESCRIPTION � `" m L
V �' 1� 20 30 40 � i
6 inches Forest Duff,Organic
Vashon Lodgement Till(1Neathered)
Very moist,gray,fine to coarse SAND,with silt,and gravel. 29
S-1 14 30
16 �
� Very moist to wet,gray,fine to coarse SAND,with silt,arid gravel. 8 I
S-2 �17 31 i
14
Vashon lodgement Till(Unweathered) 14
S-3 Wet to very molst,gray,siltyfine to medium SAND,with gravel. � 2.
10 Moist,gray,silty fine to medium SAND,with gravel. 3�
S-4 87/ 2"
Bottom oF expbrafion boring at 11 feet
Ground waler seep�cfe at 6 feet
15
20
�
25
30
35
N
O
N
�
�
D
U
LL
�
d
�
N Sampler Type(S�:
g m 2"OD Split Spoon Sampler(SPT} Q No Recovery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M) � Ring Sample � Water Level Q Approved by:
`� � Grab SamolP � Rhalh�i Ti iha Camnlc 1 Water Level at time of drillino(ATDI
Associated Earth Sciences,Inc. � �X �OPt�tl01'1 �O
� ❑ � � � Project Number Expioration Number Sheet
�`f` s . �`�; t�_ ► TE120020A EB-4 1 of 1
Project Name Maplewood Heights Elementan�-Covered Plav Area Ground Surface Elevation(ft}
Location Renton WA Datum N/A
Driller/Equipment Geologic Drill/Trailer Mounted HSA Date Start/Finish �/�7/��,�,��
Hammer Weight/Drop 140#/30" _ Hole Diameter{in)
c a� w
,^� y p� p � � y
� a f a� �u� -� n BIOWS/FOOt �
fl. S E `� �, �� � o u�
Q T � ['3 cn o m pp s
DESCRIPTION � � �0 2o so ao °
4 inches Sod/To soil '
Fill
�
Wet,gray,silry fine to coarse SAND,with gravel,slight oxidation staining. 3
S-1 g �78
9
5
S-2 j �1
Vashon Lodgement Till(Unv+eathered) 8
S-3 Mast,gray,sitty fine to medium SAlVD,with gravel. 14
37 79
42
10 S-4
sa °
Bottom of e�loration boring at 10.5 teet
Ground water seep�qe at 25 feet.
I
15
20
�
i
25
i
30
N 35
0
N
n
�
A
2
a
m
LL
�
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c9
N Sampler Type(S�:
g m 2"OD Split Spoon Sampler{SP� Q No Recovery M-Moisture Logged by: MT
N
o � 3"OD Split Spoon Sampler(D&M) � Ring Sample SZ Water Level Q Approved by:
m �
. f!? IL'1 (iraYt CamnlA �^� Cholhv Ti�ho C�mnlos VVater ievei at time of driilina(ATDI
Attachment B:
Site Plan and Exploration Logs
Hazelwood ES
�
� i-��i•��� ` '°'n\.\ LEGEND
I '}-j) ��:. ,����,
( �+� �����-_� EP-1 ■ Approximate location of exploration pit
� �� �., , �.
I �� (� \i�.�'�� �'
� � +: ��`•?`�'�;��^:\�...,_��..,`�'-_, , EB_1 • Approximate focation of exptoration boring
' � �-��..\ -�:::�.. '� �
I •, i ;t` ��_`-__ .��,_ �� A A'
I , I � � � �� ��`�,...--�,,�.,,����`�-� 'i' T Approximate location of cross-secfion
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o I� - - �{�-� �,..:.._ _ _�^_T�—�r--- --=,,�'�_----__._.__�.—REF_EBENCE:__C_OUGHI,IN.PORTF�2 LUNDEEN,
,r _ _Y�,.-•��,-�--�..�J...�.,.t_-. ' — -.._.._...�_.. .
N � � ' � , ,=��`�'-�' T �'�=`,�"` � �`' ,-�����—� 42Q-04 ELEC7RONIC TRANSMITfAL.
� � � '�.�� i � �� � �
g FIGURE 2
� Associated Earth Sciences, Inc. SITE AND EXPLORATION PLAN DA7E 8/03
� HAZELWOOD ELEMENTARY REVISED Q104
� � � � PROJECT N0. KE03329A
� � � NEWCASTL.E, WASHINGTON
�
�
�
LOG OF EXPLORATION P!T N�. EP-1
' � � This !og is patt of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and shouid be
t read together with that report for complete interpretaGon.This summary applies only to the locaflon of this trench at the
� time of excavation.Subsurface conditions may change at this location with the passage of time.The data presented are
a a simplfication of actua!conditions encountered.
DESCRIPTION
Loose, moist,dark brown, SILTY flne SAND,orc,�anic�eaf moEd and root hair�________
-- --- ----- --------- — — ---�.
— Vashon Lodgement Till J
� �Loose, moist red to li ht brown SILTYfine to medium SAND, j
� _--- �-----=----------------- -- �
------ ------------ ---
Medium dense, moist, gray, fine fo coarse SAND with rounded, fine to coarse gravels.
2
� 3
4 � Becomes dense below 4'.
�
�
6
�
7 Secomes very dense be(ow 7'. I I
I I
g _ f
(
�
9 .. I '
I
10 � � ;
�
11 - � i
� I I
9 2 - - - -- --�
Bottor�of exploraticn pit�i�9epth 12 feet '
13 No ground water seepage cncouMered during exploraGon. No qving. I
i
14 ;
�
15 -
C
16
17
18
19
�
0
0
� Hazelwood Elementary
� Newcastle, lNA
.,
a
c�
� Associated Ea�th Sciences, lnc.
N Logged by: MT Project No. KE03329A
a APPfoved by: !� � � � � � June 2003
F
LOG OF EXPLORATION P!T NO. EP-2
� This log is part of the reporl prepared by Associated Earth Sciences, Inc.(AES()for the named project and shouid be
� read together with that repor�for complete inierpretafion.This summary applies only ta the locafion of fhis trench at the
� Ume of excavation. Subsurface cpnditions may change at this location with the passage of time.The data presented are
o a simplfication of actual oonditions encountered.
DESCRIPTfON
Loose, moist, dark brown, SILTY fine SAND, or anic leaf moid and root hairs .
Vashon Lodgement Till
� Loose, moist, red-brown, fine to medium SAND, trace fine rounded gravel.
2
3 -----------------------------------------------------
Dense, moist, gray, S1LTY fine to caarse SAND, rounded,fine to coarse gravel.
4
�
5 �
s
7
8
9
10 -- �
Bottom of exploration pit at depth 10 feet
11 No ground water seepage encountered during exploration. No caving.
12 I
13 '
94
15
16
17
18
�
19
�
a
0
" Hazelwood Elementary
� Newcastle, WA
�
�
�
� Associated Earth Sciences, Inc.
� Logged by: MT Project No. KE03329A
� Approved by:� � � � � � June 2003
�
LOG OF EXPLORATfON PIT NO. EP-3
' � This log is part of the report prepared by Associated Earth Sciences,inc.(AESI)for the named project and shoutd be
� read together with that repoK for complete interpretation.This summaryap plies onty to the locafio�of this Uench at the
� tlme of excavation.Subsurface condifions may change at this locafion with the passage of time.The data presented are
o a simpifi�ztion of actual conditions encountered.
�ESCRIPTION
Loose, moist, dark brown, SILTY fine SAND, organic{Ieaf mold and root hairs). _�
Vashon Lodgement Till
� Loose, moist, lighf brown, SILTY fine to medium SAND, rounded fine to medium gravel.
2
--------------------------------------------------------
3 Dense, moist, gray, SILTY fine to coarse SAND, rounded, tine to medium gravel.
4
5 Very dense at 5'.
6
7
8 .
,
g -1—-- -- �
, [3ottom r,f exptoration pit at depth 9 feet ' I
10 f No grnund water seapage encountered during exptoration. No cavinc�. `
1
�� -� '
(
,2 (
I
13
14
15
16 i
i
17 �
18 �
19
�
�8
0
0
� Hazelwood Elemen�ary
� Newcastle, WA
�
a
�
' Associated Earth Sciences, fnc.
N Logged by: MT Project No. KE03329A
� � � � � �
� Approved by:M June 2003
a
r
L.OG OF EXPLORATI�N PIT NO. EP-4
� This log is part of fhe report prepared by Associated Earth Sciences,Inc.(AESi}for the named project and shouid be
L read together with ihat report far complete interpratation.This summary appiies only to the loca6on of this french at the
� time of excavation.Subsuriace canditions may change at this IacaUon with the passage of time.The data presented are
o a simpification of actual conditions encountered.
DESCRlPTIOt3
Loose, moist, dark brown, SlLTY fine SAND, or anic leaf mold and root hairs .
Vashon LodgementTill
� Loose to medium dense, moisf, light red-brown, SILTY fine to medium SAND, raunded fine to
medium gravel, root zone at 18".
2
3 -----------------------------------------------------
Dense, moist, gray, S1LTY fiine ta coarse SAND,fine to coarse gravel and cobble.
4
5
6
7
8
9 '
10 gottom of explora6on pit at deptii 9.5 feet I
No ground water seepage encountered during expioraGon. No caving.
11
12
13
i '14
15 I
16
17
18
19 i
�
�
0
0
� Hazelwood Elementary
� Newcastle, WA
a
c�
Q Associated Earth Sciences, Inc.
� Logged by: MT Project No. KE03329A
a� � � � � �
Approved by: � June 2003
�
LOG OF EXPLORATION PIT NO. EP-5
' � This log Is part of the report prepared by Associated Earth Sciences, {nc.(AE51}for the named p.roject and shouid be
� read togett�er w'ith that report for complete interpretation.This summary appiies only to the IocaUon of this trench at the
� Ume of excavat�on.Subsurface condifions may change at this location with the passage of time.The data presented are
o a simplfica6on of actuai conditions encountered.
DESCRlPTION
Loose, maist, dark brown, SILTY fine SAND, organic(leaf mold and root hairs}.
Loose, moist, dark brown, SILTY fine SAND, organic__ ___________�'
� �------------------- -----------
Tukwila�ormation
Loose to medium dense, moist, light yellow-brown, fine to medium SAND, some rounded grave! and
2 cobbles. weathered 7ukwila Formation _______________�-
-----�---------------�---------------
3 Very dense, moist, dark gray, SANDSTONE, fractured (4'to 8" bfacEcs) dark red to bEack oxidation
staining on fracture surfaces.
4
5
Bottom of exploration pit at depth 5 feet
6 No ground water seepage encountered during expioration. No caving.
7
8
I 9
� �
10 �
11
12
13
14
15
16
17
18
19
i
M
a
a
N Hazelwood Elementary
� Newcasfile, WA
a
t9
Q Associated Earth Sciences, Inc.
n Logged by: MT Project No. KE03329A
� Approved by: ?/1 � � � � � June 2003
LOG OF EXPL4RATIDN PIT NO, EP-6
� This log is part of the report prepared by Associated Earth Sciences, Inc.(AESI)for the named project and should be
� read together with ihat repor�for complete interpretation.This summary applies only to the locafion af this trench at the
� lime of excava6on, Subsurface canditions may change at this location with the passage of time,The data presented are
o a simplfication of actua!conditions encountered.
DESCRIPTION
Loose, moist, dark brown, SI�TY fine SAND, organic(leaf mold and root hairs). �
� �Loose,moist, dark brown_SILTY fine SAND, organic_________________________t
Advance Outwash
Loose to medium dense, moist, yeilow-gray-brown,fine to medium SAND,few fine #o coarse gravel,
2 may roots upper 12".
------------------------------------------------------
3 Dense, moist, gray, fine to coarse SAND with fine to coarse, rounded gravel.
4 ------------------------.-----------------------------
Tukwila Forma#ion
5 Dense, moist, dark gray SANDSTONE, frach►red with dark red to black oxidation staining on
fracture surfaces.
6
7 Boriom of exploration pit at dEpth 6.5 feet
No ground water seepage encountered during exploration. No caving.
$
y
i
�
�
1L �
11 �
i
I
�2
13
1� '
'I 5 I
1 fi
17
i
18
19 (
�
.,�
1
�
a
a
r Hazetwood Elementary
� Newcastle, !NA
�
a
c�
� Associated Earth Sciences, 1nc.
� Logged by: MT Project No. KE03329A
� � � � � �
� Approved by:� Jttne 2003
a
L�G OF EXPLORATIOiV PIT NO. EP-7
' � This log is part of the report prepared by Assoaated Earih Sciences,inc. (AESI)for the named project and should be
a read together wifh that report for complete interpretation.This summary applies only to the laqtion of this trench at the
time of excavation.Subsurface conditions may change at this location wifh the passage of time.The data presented are
� a simplfication of actual conditions encountered.
DESCRtPTION
Loose, moist, dark brown, SILTY fine SAND, organic(leaf mold and root hairs).
1 ----------------- -------------------
Advance Outwash
2 Loose to medium dense, moist, yellow-gray-brown, fine to medium SAND, some fine to coarse,
rounded gravel.
3
4 Dense with depth below 3'.
5
6 Dense to very dense, moist, gray, fine to cAarse SAND, few fine to coarse, rounded g�avel, trace
cobble.
7
8
�
g � i
,
� 10 i
! i
1� �
� I
12 '
13 pense,wet, gray, GRAVELLY SAND/SANDY GRAVEL.
14 '
15
16
Bottom of exploration pit at depth 16 feet ;
17 No ground water seepage encountered during exploration. No caving. i
18
19
�
f
�
a
0
" Hazelwood Eiementary
� Newcastle, WA
�
a
c�
� Associated Earth Sciences, inc,
; tagged by: MT Pro}ect No. KE03329A
� Approved by: � � � � � � June 2003
LOG OF EXPLQRATION P!1' tVO. EP-8
---�
" This log is part of ihe report prepared by Associated Earth Sciences, Inc.{AESI}for the named prajeci and shouSd be
L read together with that�epor�for complete interpretaGon.This surnmary applies oniy to the localion of this trench at the
m time of excavation. Subsurface conditions may change at this location with the passage of time.The data presenied are
o a sfmplfication of actual conditions encountered.
QESCRIPTION
Loose, moist, dark brown, SlLTY fine SAND, organic{leaf mold and root hairs).
Advance Outwash
� Loose to medium dense, moist, yellow-gray-brown, fine to medium SAND, trace silt, few raunded,
fine to coarse gravel.
2 Roots upper 18".
3
4
5
6
I7
8 ---------
Medium dense, moist, light reddish gray,fine to coarse SAND, few medium gravel.
9
10 ;
11
12 �
13 I
14 � '
15
16
Bottom of exploration pit at depth 16 feet
17 No ground water seepage encountered during exploraiion. No caving.
18
19
nn
I
��
n
0
0
r Hazelwood Elementary
� Newcastie, WA
a
�
� Associated Earth Sciences, If1C. p�o ect No. KE03329A
� Logged by: MT 1
� � � � � � �
� Approved by: June 2003
a
�
LOG OF EXPLORATION PIT NO. EP-9
, � This log is part of the report prepared by Associatecl Earth Sciences,Inc.(AFSI)for the named project and should be
� read together with that report for complete interpretation.This summary appiies only to the loca6on of this trench at the
� time of excavation. Subsurface conditions may change at this IocatiNaz with the passage of time.The data presented are
o a simpification of actuai conditions encountered.
DESCRiPT10N
Loose, moist, dark brown, SILTY fine SAND, organic (leaf mold and root hairs}. '-
�Dr�to moist, brown SILTY SAND._ _ ___�
� ----------------
Advance Outwash
Loose to medium dense, moist, red-brown-gray, fine fo medium SAND with rounded, fine to medium
2 �gravel.___________ -
-------------------------------------�
� Medium dense to dense, moist, gray,medium to coarse SAND, few fine to coarse, rounded gravel.
3
4
� 5
I 6
� 7
� j
� $
�
I 9 -
� �
i �� '
�
11 - I
12
13
14 I
15
16 - i
Bottom of exploration pit at depth 16 feet '
17 - No ground water seepagg encountered during exploration. No cavi�g.
18
19
�n
�
8
" Hazeiwood Efemenfary �
� Newcastle, WA
�
a
cs
Q Associated Earth Sciences, Inc.
N Logged by: M i Project No. KE03329A
a Approved by: � � � � � � June 2003 �
LOG OF EXPLORATION PIT NO. EP-10
� This log is part of the report prepared by Associated Earfh Sciences,Inc.(AESI)for the named project and should be
� read together with that report for comp(ete interprehation.This summary applies only to the location of this trench at the
m time of excavation.Subsurface conditions may charige at this tocatian with the oassage of time.The data presented are
o a simplfication of actual condi6ons encountered.
DESCRIPTION
Loose, maist, dark brown, SILTY fine SAND, organic(leaf mofd and root hairs).
-----------------------------------------------------
� Advance Outwash
Loose to medium dense, moist, red-brown-gray, fine to coarse SAND, abundant fine to coarse,
2 rounded gravel and cobbles.
-----------------------------------------------------
3 Dense, moist, gray, fine to medium SAND with rounded, fine to coarse grave!and some cobble.
4 Dense, moist, gray, medium to coarse SAND with rounded, fne to coarse gravel, few cobble.
5
6
%
8 I
g More fine to coarse gravel and cobble. � 1
10 �
� I
1'! j
i
12 �
�
�
13 �
---------- '
14 Dense,moist,gray GRAVELLY coarse SRNDISANDY medium GRAVEL. � I
15
16
Botforn of exploratian pit at depth 16 feet
17 No ground water seepage encountered during exploration. No caving.
18 I
19 �
�
0
0
� Hazelwood Elementary
� Newcastle, WA
�
a
�
� Associated Earth Sciences, I�C. project No. KE03329A
N Logged by: MT
� Approved by: � � � � � � June 2003
LOG OF EXPLORATiON PiT NO. EP-'i'�
� ' � This log is part of the report prepared by Associated Earth Sciences, Inc.{AE51)for the named project and should be
� read together with that report for complete interpretation.This summary applies only to the location of this trench at the
� time of excavat�on.Subsurface conditions may change at this iocation with ihe passage of time.The data presenied are
o a simpification of actual conditions sncountered.
DESCRIPTIDN
Loose, moist, dark brown, SILTY fine SAND, organic(leaf mold and root hairs).
-----------------------------------------------------
,� Advance Oufwash
Loose to medium dense, moist, yellow-brown-gray,fine to coarse SAND, few rounded gravel, roots
2 to 2'. '
3 Tukwila Formation
4 Dense, moist, dark gray to brown tuffaceous SANDSTONE, fractures 4" to 6" blocks, dark red to
black oxidation staining on fractured surfaces.
5
6
7
8 - -
Battum of exp�oration pit at depth 8 feet I
9 No ground w2ter seepage encountered during exploration. No caving
I
10
'I 7
I
12 I
13
14
15
1
16
17 �
18
19
i
�., - - -
�
�
a
0
� Hazelwood Elementary
� Newcastle, llVA
�
a
c9
� Associated Earth Sciences, 111C. Project No. KE03329A
� Logged by: MT
�
a Approved by: � � � � � June 2003
LO� OF EXPLORATION PIT' NO. EP-12
" This log is part of the report prepared by Associaled Earth Sciences,Inc.{AESI}for the named praject and should be
w read together wiih that repor�for cornpfeie interpretation.This summary applies only to the locafion of this trench at the
� 6me of excavation, Sttbsurface condifions may change at this location with the passage of time.The data presented are
o a simpification ofi ach�al conditions encountered.
DESCRIPTION
Loose, moist, daric brown, SILTY fine SAND, organic(ieaf maid and root hairs).
-----------------------------------------------------
Advance Outwash
� Loose t�medium dense, moist, yellow-gray-brown, fine to medium SAND,few rounded gravel.
2
3
Tukwila Formation
4 Dense, moist, dark gray tuffaceous SANDSTONE and TUFF, fractured into 4"to 8" blocks, dark red
to black oxidation staining on fractured surfaces. Altered fo clay.
5
6
i
I 7
i �
� 8 f
! 9 - __ _______- �
�
4 Bottom o�exploration pit at depth 3 feet �
� 10 No ground water seepag?encounteied during�axptorati::❑ No caving. �
�
I
� 11
I
12
13 -
14 '
15
16
17
18
19 I
�
0
0
� Hazelwood Elementary
� Newcastle, WA
�
a
c7
Q Associated Earth Sciences, Inc.
Projecf No. KE03329A
; Logged by: MT � � � � �
a Approved by: ry(i June 2003
LOG OF EXPLORATlON PIT NO. EP-13
' = This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be
� read together with that report for complete interpretalion.This summary applies only to the location of this trench at the
� time of excavaUon.Subsurface condifions may change at this location with the passage of time.The data presented are
o a simpiftcation of actual conditions encountered.
DESCRfPT10N
Loose, moist, dark brown, SILTY fine SAND, organic(leaf mold and root hairs).
-----------------------------------------------------
� Advance Outwash
Loose fo medium dense, moist, yellow-gray-brown,fine to medium SAND,few rounded gravel.
2 Tukwila Formation
3 Dense, moist, dark gray ANDESITE,fractured with dark red to black oxidation staining on fracture
surfaces.
Less fracfured with depth.
4
5
, 6
7
i Bottom of exploration pit at depfh 7 feet
8 No ground wafer seepage encountered during explo2Gon. No caving.
�
9
� 10
11
12
13
14
15 I
16
17 i
18 I
19
�
0
" Hazelwood Elementary
� Newcas#le, WA
�
a
`� Associated Earth Sciences, InC. Projecf No. KE03329A
N Logged by: MT
� � � � � �
� Approved by: � June 2003
a
...
LOG OF EXPLORATION PIT NO. EP-14
� This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be
� read together with that report for complete interpretati�.This summary applies only to the locaElon of this trench at the
� time of excavation. Subsurface condifions may change at this location with the passage of time, The daia presented are
o a simpification of actual conditions encountered.
DESCR{PTION
Loose, moist,dark brown, SILTI'fine SAND,or�anic�eaf mold and root hair�___________�
Advance Dutwash
� Medium dense, moist, yelfow-green-brown,fine to medium SAN�, few rounded, fine to coarse
g ravel.
2
3 Tukwila Formation
4 Dense, moist, darlc gray, tuffaceous SANDSTONE, fractured 4"to 6" fragments, dark red to black
oxidation staining on fracture surfaces.
5
6 �
8ottom of exploration pit at depth 6 feet (
7 No ground water seepage encountered during exploration. !Vo pving.
8 �
�f j -
I g i
10 -�
11 � I
12
13
14 -
15 '
16 I
17
18
19
�
0
a
" Hazelwood Elementary
� Newcastle, WA
�
a
c�
a Associated Earth Sciences, inc.
Project No. KEQ3329A
� �o99ed by: MT � �`J+ � � �
m Approved by: � June 2003
a
LOG OF EXPi.ORATION P!T IVO. EP-15
! � This log is part of the report prepared by Associated Earth Sciences,inc.(AESI)for the named�ro}ect and should be
L read together with ihat report for complete interpretation.This summary app[ies only to the locafion of this trench at the
a time of excavaGon. Subsurface condi6ons may change at this IocaGon with the passage of time.The data presented are
o a simplfication of actuat conditions encountered.
DESCRIPTtON
Loose, moist,dark brown, SILTY fine SAND1orsanic�eaf mold and root hairs�___________�
------ ----- ------ — ----------
Fill
� Dense, moist, dark brown, SILTY SAND, 1" to 16" diamefer sandstone fragments.
2 Loose, moist, gray SILTY SANQ, momed, 4"to 12" diameter sandstone fragments.
3 Sides of hole caving.
� � 4 3'by 3' boulder.
5
6 Many 12"to 18"sandstone fragments.
7
8
i
9
10 �— —--- — - -- --- I
Bottom of exploraGon pit at depfh 10 feet
11 No ground water seeoage encountered during exp;oration.Caving 6eiow 3'.
12
13
14
15 ,
16 �
17 I
18
19
0
0
N Hazelwood Elementary �
' Newcastle, WA
a
�
Q Associated Earth Sciences, Inc.
� Logged by: M7 Project No. KE03329A
a Approved by: � � � � � � June 2003
�
LOG OF EXPLORATlOiV PIT NO. EP-16
" This log is part of the report prepared by Associated Earth Saences,Inc.(AESI}for the named project and shouid be
� read together w�th[hat repo�t for complete interpretation.This summary applies only to the location of this trench at the
� Gme of excavaUon. Subsurface conditions may change at this location with the passage of time.The daia presented are
o a simplfication of actual conditions encountered.
QESCRIPTION
Trash 1 Fill
� Loose, moist, brawn SILTY SAND.
3Q% wood and organics.
2 Wood, branches, plastic, rebar, metai fencing, steel cable, glass soda bottles, more chain link
fencing, concrete curbs - many 1'to 3'sections of 6"curb.
3
4 '�
5 Loose to medium dense, moist, red-yellow-brown, fne to coarse SAND, rounded, fine to coarse
GRAVEL, some cobble, mottled.
6
7
$ Advance Outwash
;
9 _ Medium dense, moist, gray,fine to coarse SAND, rounded fine to coarse GRAVEL,few cobble.
I f i
' '10 -� I
� Tukwila Formation
11 � Dense, moist, dark gray SANDSTONE, 6" to 8" fracture blocks, dark red to black oxidation staining
� on fracture surfaces.
12
Bottom of exploration pit at depth 12 feet
13 No ground water seepage encountered during exploration. No caving.
14 ,
15
16
17
18
19
�
�6
0
0
N Hazelwood Elementary
� Newcastle, WA
�
a
c�
Q Associated Earth Sciences, Inc.
� Logged by: MT Project No. KE03329A
� Approved by: � � � � � � June 20�3
a
�,
LOG OF EXPLORr4TI0N PIT iVO. EP�17
' � � This log is part oi lhe repo�t prepared by Assor,iated Earth Sciences,Inc. (AESI)for the namedproject and should be
L read together with that report for complete interpretation.This summary appiies only to the location of this trench at the
� time of excavation.Subsurface conditions may change at this location with the passage of time.The data presented are
o a simplfication af actual conditions encountered.
1
DESCRIPTION
l_oose, moist, dark brown, SILTY fine SAND, organic(leaf mold and roof hairs),
� Vashon Lodgement Tili
Loose to medium dense, moist, yellow-green-brawn, fine to medium SAND,with rounded fine to
Z coarse�rav_el, few cobble.________
�__�__�_�__�_��__��_���__��__�J
Medium dense, moist,gray,fine to coarse SAND with rounded, fine to coarse gravel, few cobbles.
3
4
5
s
� �
�
;
a
s
` �t� '-- ._ .--- � — - -—
I I
Boriom of exploration pit at depth 10 feet
1 1 — No ground water seepage encountered during exploration. No caving.
12 '
13
14 I
15
16
17
18
19
�., _
�--�-- --- - -
0
0
N Hazelwood Elementary
' Newcastie, WA
a
c�
� Associated Earth Sciences, Inc.
a Project No. KE03329A
N Logged by. MT
� � F�:� � � �
� Approved by: � June 2003
a
�
U
LOG OF EXPLORATION PIT IVO. EP�'9 8
� This log is part of the report prepared by Assoaated Earth Sciences, Inc.(AESI)far the named project and should be
� fead together with that report for complete interpretaGon.This summary applfes only to the location of fhis trench at the
� time of excavaiion.Subsurface conditions may change at this location with the passage of lime.The data presented are
� a simpification of actual conditions encountered.
DESCRiPTION
Loose, moist, dark brown, SILTY fine SAND, organic(ieaf mold and root hairs).
1 Vashon Lodgement Till
Loose ta medium dense, moist, yellow-brown,fine to medium SAND, with raunded fine to caarse
2 ra_vei, fewcabble____________
______________�_______________J
Dense, maist, gray, fine to coarse SAND with rounded,fine to coarse gravel,few cobbles.
3
4 �
5
6
7 ,
8
9 '
Bottom of exploration pit at depth 9 feet
' 10 No ground water seepage encountered during exploration. No caving.
11 '
12 I
13
14
15 i
,
16
17
18
19
�
a -,�
tV _
E Hazeiwood Elementary
d
= Newcastle, WA
�
a
c7
Q Associated Earth Sciences, Inc.
; Logged by: MT Ptoject No. KE43329A
� Approved by: � � � � � June 2003
U
Y
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Expioratton Number Sheet
KE03329A EB-1 1 of 1
Project Name Hazelwood Elemenfary Ground SurFace Elevation(ft}
' tocacion Newcast(e. WA natum N�q
DriiledEquipment Davies DrillinQ/HSFA Date Start/Finish �R/��/Q, /��tf��_
Hammer WeighUDrop 140#/3Q�� Hole Diameter(in)
v N V � � N � y
t Q na �,� � � BIOWS/FOOt �
p T � � T o � m
m
�� DESCRIPTION � 3 io 2o ao ao �
s-1 o sr �z �s-
Vashon Lodgement Till
Dry to moist,light brown,S ILTY fine SANDlfine SANDY SILT,few fine
gravel.
Moist,gray,SILTY fine to medium SAND with fine to medium gravei; 14
I S-2 rounded. 27 oa
Moist,gray,fine to coarse SAND with fine to coarse gravel,trace silt. 37
� 5
S-3 Mast,gray,fine to coarse SAND,some f+ne t o coarse gravel. ZS soi -
oi
S� 34
0 50J "
10 Bottom of expbralion boring at 9 feet
, 15
_`
20
25
36
35
0
�
�;
�
�
�
a
�
� Sampier Type(ST}:
� Q 2"OD Split Spoon Sampler(SPT) � No Recavery M-Moisture Logged by: MT
o � 3"OD Split Spoon Sampler !D &Pf) � Ring Sample � Water Levei O Approved by: �
Associated Earth Sciences, Inc. EX loration Lo
� � � � � � Project Number � Exploration Number Sheet
KE03329A EB-2 1 of 1
Project Name Hazelwood Elementark Ground Surface Elevation(ft)
Location NewCastle. WA Datum �/A
Driller/Equipment Davies Drillf�lq / HSFA Date Start/Finish fiF!'��! 3,R13�/fl�
Fiammer Weight/Drop 140#/30��. Hole Diameter(in}
c a� ,y
� � L� � N � �
a �E °�a� 3 B�ows/Foot �
m 5 � a �E � o m
� T `� �� DESCRIPTION " � m �0 20 3o ao °
Weathered Vashon Lodgement Till 3
S-� Mast,light orangish brown to gray,SILTY fine to coarse SAND,few 4 A
rounded gravel. s
S-2 3 s
4
� Vashon Lodgement Tili
S-3 �oist,brown-gray,fine to coarse SANDY GRAVEUGRAVELLY SAND. 2�
Rock in tip of sample. a� as
4b
S-4 �
50
Bottom of expbration boring al 8 feet
10 No ground water or seepage encountered during expbralion.
15
20
, 25
30
35
0
N
A
�
�
�
a
�
� Sampler Type(ST):
; m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT'
o � 3"OD Split Spoon Sampler(D&PA) � Ring Samole SZ Water Level() Approved by: �
�' `-' � -• �• — .. � ♦ Uvat r I evel at time of drillinq;ATO)
Associated Earth Sciences, inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-3 1 of 1
Project Name Hazelwood Elementar� Ground Surface Elevation (ft)
� Location Newcastle. WA Datum NJq
Dri�tedEquipment Davies Drillinq/HSFA Date StarUFinish n� l��,���nm�
Hammer Weight/Drop 14d#130" Hole Diameter(in}
v y V O � N � �
� o, n'n �d -� � B�OWS/FOQt �
o T � C��' �o `° m t
�' DESCRiPTI�N � � to 20 30 40 °
S-� Fill 3 �t
Dry to moist,light brown,SILTY fine SAND,few fine grave[,mottled,some 3
orange oxidation.
S-2 Same 4
3 10
7
5 Guttings more brown and more medium gravel.
--------- ---------- 6
S-3 Vashon lodgementTill 2� 60
Mast,brown-gray,SILTY fine to coarse SAND,few rounded gravef. 39
10 S-4 �
50! •
BoHom of expbration boring at�0.1 feel
Bottom at 10_1'on rock-could not drill or sample through.
45
20
25
30
35
0
N
O)
7
�
"f
a
c9
� Sampier Type(ST};
a m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M} � Ring Sample SZ Water Levei() Approved by: �{
♦
m '�' � ^�-��- T..�- �...--,..r Water Level at time of drilling(ATD)
Associated Earth Sciences, Inc. EX foration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-4 9 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft}
Location Newcastle. WA Datum N/A
DrilierlEquipment Davies Driilingl HSFA Date Starf/Finish n�«nm� �l�nm�
Hammer Weight/Drop 14d#I 30" Hole Diameter{in} �
.�i y L�O � N � N
� a a �� � n BIOWS/FoOt �
� T � U'�u� o m m t
DESCRiPTION � � �o zo 3o ao °
S-'1 8
Vashon Lodgement Till 2e 58
Dry to moist,light brown,flne SANDY SILTISIITY flne SAND,trace ao
gravel.
g_2 Moist,gray-brown,fine to coarse SAND with 6ne to coarse rounded gravel, �
mottled. o! ao/a^
5 �
S"3 5 15. • SOJ 5•
10 S� zs
Moist,gray-brown,SILTY fine fo coarse SAND with fine to coarse, o� so! �
rot�ded gravel.
S_5 01
Moist,dark gray,medium to coarse SAND,some grounded gravel. 5ot '
15 S-fi o!
50/ "
Bo11om of explora!'wn boring at 15.5 feet
No ground water or seepage encountered during exptoration
20
25 '
30
35
0
�
�
T
7
�
�
LS.
<.7
� Sampler Type(ST}:
� m Z"OD Split Spoon Sampler(SPT) � No Recovery M-Mofshue Logged by: MT
o m 3"OD Split 5poon Sampier(0&M) � Ring Sample � �Naier Levei() Approved by: �
m '—' � - — . - • e ��ni�m.i avPi at rime�f driilina lATO)
_ _ . _._ _ _ __ __
Associated Earth Sciences, inc. EX lora#ion Lo
� � � � � Project Number Exploration Number Sheet
KEQ3329A EB-5 1 of 1
Project Name Hazelwood Elementar}� Ground Surface Elevation(ft)
Location Newcastle. WA Ratum N/A
' Driller/Equipment Davies D�lling /HSFA Date Start/Finish ��,/q�/(13,�i�nms
Hammer WeighURrop 140#!30" Hole Diameter{in}
�
� N U p O � � p (A
L d p,'n �N .` 1 O�OW.S����t F�
p T � �� o � m �
DESCRIPTION �
V � 1 0 2 0 3 0 4 0 �
/4" o r uali A urFa 1/4"min s.
S-1 FII o �22
Mast,fight brown,fine to medium SANR,few rounded gravel. s2
Moist to wet,olive-gray,fine ta coarse SAND,trace silt,few rounded fine 3
S-2 gravel. 3 ♦
4
5
S-3 3 0
a
�a Wet,olive to gray,fine to medium SAND,Vace silt,trace fine gravel, 1/4" 5
5-4 tfii k or nic zone t f m 1 r. 5 A2
Advance Outwash 2t
j 5 Moist, brown-gray,coarse SAND,fine ta medium gravel,yellow oxidation, �Z
S-5 reddish,rounded gravel near tip of sampler,bits af black qrbon. sy a�
a2
20 Moist li ht brown- ra coarse SAND few fine vel ellow-oran e �
, . 9 9 Y� . 9T� ,Y 9 �a
S-6 ox�datlon. 2q 4g
25
25 Wet to saturated,gray-brown,coarse SAND,slight orange oxidation. = 13
S'7 0� Sa •
30 tvtoist,gray,fine to coarse SAND. �p I
5-8 23 52
29
8ottom of exploration boring at 31.5 feet
Seepage at 2S
35
0
N
ti
�
�
�
a
�
� Sampler Type{ST}:
� m 2"OQ 5p�it Spoan Sampler(SPT) D No Recovery M-Moisture Logged by: MT
� � 3"OD Split Spoan Sampler(D& ��q) C. Rinq Samole � Water!evel O Approved by: 'n
m � ra a ini..�.,.i.,,..,i-,�fs..,e.,F rlriuFnn�nTn�
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE43329A EB-6 1 of 1
Project Name Hazelwood Elementarv Ground Surface Elevation (ft) _
Location NewCaStle. WA Datum N/A
Driller/Equipment Davies Drilling/ HSFA Date StarflFinish n���n/n3 t,�f1/fl3
Hammer Weight/Dr�p 140#/30" Hole Qiameter(in)
c d �
" m L� —� � � BIOWS/FOOt �
a S E �>, �a � o �
p T � �N o � m L
DESCR1PTlON " � 10 20 3o ao °
�o
S-1 Fill t2 ez
Qry to moist,light brown, SILTY fine SAND,few rounded gravel. ta
Dry to moist,Ilght gray-brown,fine to medium SANDY
GRAVEVGRAVELLY SAND.
S-2 Mast,light brown-gray,fine to coarse SAND,few rounded gravel. 14 AZ4
+o
5
S-3 Moist to wet,dark brown SILTY SAND,trace rounded,fine gravel,organic, 3 d
reddish oxidation zone. 5
-------------------------------
Advance Outwash
1d =
S� WeF to saturated,light gray,medium to coarse SAND,few Rne gravel. 26
za so •
a
�
15 Wet,gray, medium to coarse SANll, (ew fine gravel,orangish oxidation. 24
S-5 � ��
»
Zd S-6 Wet, gray,medium to coarse SANO. �o -
i6 7
21
25 � '
Wet to saturated,gray,medium to coarse SAiVD. �y
S'� 23 55
32
Bottom of exploretion horing at 28.5 feet
Seepage at 10'and 25'
30
35
0
N
ti
�
�
�
a
c�
� Sampler Type(ST):
� � 2"OD Split Spoon Sampler(SPT} � No Recovery M-Moisture togged by: MT
o � 3"OD Splif Spoon Sampler(D&ivl? � Ring S2mple 2 Water Level O approved by: �
� '—' � s t+e.,��.I ,,,,al 04 fimo n,f ririllinn/ATn�
Associated Ea�th Sciences, lnc. EX loration Lo
� � � � � Project Number 6cpioration Number Sheet
KE03329A EB-7 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft)
' Location NeWcastle. WA Datum �/q
DrillerlEquipment Davies Drillinq!HSFA Date StarUFnish �/1/(13�7/1/(l3
Hammer WeighUDrop 140#/30" Hale Diameter(in)
� � L� .� m �p N
Q a �� -� �n BIOWS/FOOt �
�o E a � 3
O T cn �� �o `� m t
DESCRfPTiON � � �0 20 3o ao �
d 2
5-1 Fill
6 •14
Moist,gray, medium SAND. e
Moist,dark brown,fine SANDY SILT.
Moist,light brown-gray,medium SAND,orange oxidation.
S-2 Moist,gray-brown SAND. � eZ
Mast,dark brown,fine to medium SANDY SlLT,orange oxidation. �
Mast reddish light brown,medium to coarse SAND,orange oxidatlon.
5 Wet,reddish brown,SILTY fine to medium SAND/SANDY SILT,few fine
S-3 rounded gravel. 2 �5
3
10 Wet,light gray,very fine SANDY SILT,orange oxidation. 5
S-`� W t br wn- ra n to e i AND trac fr r v I y e2
Advance Outwash t6
Wet,gray,fine to medium SAND.
�� Moist,gray,fine to coarse SAND,few fine to medium gavel,some orange 15
S-$ oxidation. 4o a3
43
20
8ottom of expbratlon boring at 21.5 feet
No gmund waler or seepage encountered during exploreUon
25
30
35
�
8
N
N
�
�
�
a
c�
� Sampler Type(ST):
� m 2"OD Splii Spoon Sampler(SPT} � No Recovery M-Masture Logged by: NIT
� �I I 3"OD Split Spoen Sampler(D&Fv1} C Ring Sample � VJater Level� Approved by: '�
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sfieet
KE03329A EB-8 1 of 1
Project Name Hazefwood Elementary Ground Surface Elevation(ft} _
Location Newcastle. WA Datum N/A
Driller/Equipment Davies Drilling/ HSFA Date Start/Fnish 7/f11/(1�,7/1/(l�
Hammer Weight/Drop 140#/30" Hole Diameter(in)
^ C y N
� N L� � � � q1
L a o, �a� J v� BIOWS/FOOt F
p T � �� �o iam L
DESCRIPTION " � �0 2o s� ao °
o ,2
S-1 Fill 20 � 7
Dry to moist,light brown SlLTy fine SAND,rounded gravel and cobble. �7
S 2 Wet,gray-brown,SILTY fine to coarse SAND,few rounded fine gravel. 3 e
3
4
5
S-3 Advance Outwash �q S g
Moist, red-brown to gray,fine to medium SAND,few rounded gravel, 14
moriled.
�� Wet to moist,yellowish gray SiLT grading to flne to medium SAND,orange 4
S-4 oxidation. �7 3o
Fractured gravel in middle of sampler. �3
�5 Moist,gray,fine to coarse SAND,few rounded gravei in tip;horizontal 8
S-$ 1/10"iaminations-dark/light. ts ss
2Q
2� Moist,gray,fine to coarse SAND. 7
S'6 21 s2
3'1
Aottom of expbration 6oring at 21 5 feet
25
30
35
0
N
Qf
�
�
�
d
�
� Sampier Type(S"n:
o m 2"OD Split Spoon Samp{er(SPT) � No Recovery M-Moisture Logged by: MT
o � 3"00 Split Spoon Sampler{D &M) � Ring Sample SZ Water Level() Approved by: ^,�
i�
m '-' � -.. �. — , ..- --_,_ ♦ vdaiar Level at time of driHin9(ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Expioration Number Sheet
KE03329A EB-9 1 of 1
Project Name Hazelwood Elementary Ground Surface Eleva6on(ft)
Loca6on NeWCaStle. WA Datum NIA
' DrillerlEquipment Davies DriNing/HSFA Date Start/Finish 7!(11l�3,7/1/f13
Harnmer WeighUDrop 140#/30° Hole Diameter(in)
c a� �
� � L D � m � �
� Q Q �,� � � Blows/Fo4t �
o T � �� �o � m =
DESCRIPTION " 3 �0 20 3o ao �
S-1 Vashon LodgementTill p s22
Dry ta moist,light brown, SILTY 6ne SAND,few fine rounded gravel. �z
Moisf,light hmwn,fine Eo coarse SAND with silt,fne to medium rounded
gravel. �
S-2 Moist,light brovm,fine to medium SAND,ttace sift,fine to medium �5. ^ 50/ .s•
�41�Rd�B��b�•------------------------
Moist,light brown-gray,fine to coarse SAND,rounded gravel.
5
S-3 16
43 50 "
0/
Boriom of expbrelion boring at 6.5 feel
10
15
2p
25 �
�
30
I
35
0
N
O1
�
�
"�
0.
�
� Sampler Type(ST}:
o m 2"OD Split Spo� Sampler(SPT) [� No Recovery M-Moisture Logged by: MT
� � 3"OD Split Spoon Sampler(D&M) � Ring Sample 2 Water Level Q Approved by: �,/
`" —' '-' - � - � � ♦ tti�arer Levet at time of drilling(ATD) �/�
Associated Earth Sciences, inc. EX Ioration Lo
� � � � � Project Numher �xploration Number Sheet
KE03329A EB-10 1 of 1
Project Name Hazeiwood Elementary Ground Surface Elevation(ft)
Location Newcas�le. WA Dafum ntl,4
Drilier/�quipment Davies Drillin� /HSFA Date Start/Finish 7111f1��7/9/(1'3_
Hammer Weight/Drop 140#/30�� Hole Diameter(in)
c a� �
v y V D � � � N
°' L � � N BioWSIFQOt �
a S E �° a �Qd a y
� T � C�cn o m �p .c
DESCRiPTION , " � �0 20 3o aa °
Vashon Lodgement Ti{I g
S-� Dry to moist,light brown,SILTY fine SAND/fine to medium SANO. 27 s2
35
S 2 Moist,gray,SILTY fine to medium SANO,rounded fine to coarse gravel. 15
29 84
55
5 g_3 Moist,gray,SILTY fine to medium SAND,rounded fine to coarse gravel. 19
a � so� �
10 g-4 � .
Bottom of exploration boring at 102 feet
No ground water or seepage encountered during exptoration.
15 I �
I
� I
I
1
2�
I
25 '
1
i
30
35
0
N
�
7
"�
�
a
�
� Sampler Type(STj:
o m 2"OD Split 5poon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
� I I I 3" OD Split Spoon Sampier(D& �vi} ❑ Ring Sample SZ 'Nater�evel O Approved by: �
Assaciated Earth Sciences, ���. Ex loration Lo
� � � � � Project Number Expioradon Number 5heet
KE03329A EB-11 1 of 1
ProJect Name Hazelwood Elementa� Ground Surface Eleva6on(ft)
�ocation Newcastle. WA �atum Nl,4
' DriilerlEquipment Bortec/HSFA and Diamond Ri#Rack Core Date Start/Finish R(�p�,R/41Q3
Hammer WeighVDrop 140#/30" Hole Diameter{in)
� N V O � d � �vl
� a Q� �,� -� y BiowslFoot ;
a S E m T ��' a; o �
� T �' �N DESCRIPTiON � � m t
v �' '10 20 30 40 �
Vashon Lodgement Til!
Damp to moist,yeliow-brawn,SiLTY SAND with gravei(SM);contains
scattered cobbles.
5 5-1
Damp to moist,grey,SANDY GRAVEL(GW); contairts scattered cobbles.
S_7 2 Change from auger to roc4t core at 7'2". 32
5-7.5 RQD=0% �, � �
0
RQQ=0%
5-9.5 0
10
Rounded gravel 1J4"to 1 1!2".
-12. �
RQD=0°�
0
-14.
�$ RQD=0°/a
, -15. --------------.----------------- o
Tukwila Fortna6on
Moist,dark gray andesitic BRECCIA and VolcanicTUFF. �
-17. RQD=80%(good).
20 RQD=83%(good}.
83
-22.
2� RQD=95%{excelient).
95
-27.
RQD=909'0(excellent).
30 9a
5-31
Bottom of exploration borfng at 31 feet
g 35
N
n
N
E
m
>
0
2
�
d
�
m Sampler Type(ST}:
o � 2°QD 5plit Spoon 5ampler(SPT) Q No Recovery M-Moisture Logged by: MT
o � 3"OD 5plit 5poon Sampler(D&M) � Ring Sample 2 Water Level() Approved hy:
� k� .._� ,.___�_ �? choih,i Tiihc Cmm�lP S NJater Levei at 6me of drilGng(ATD)
Associated Earth Sc(ences, ��,�. Ex lora#ion Lo
� � � � Project Number Expbratlon Number 5heet
KE03329A EB-12 1 af 1
Project Name Hazelwood Elementafy Ground Surface Elevation(ft)
Lacation Newcastle. WA Datum �11A
Driller/Equipment Bortec/ HSFA and Diamond Rit Rack Core Date StarUFinish R/5iC13,R/5/O3
Hammer WeighUDrop 140#/3d" Nole Diameter(in)
� y U� O 7 � N
� �E �Q � 3 BIOWS/FOOt °�
d � y �
� S � �� �E � o a�
� T �' DESCRIPTlON � � m �0 2o so ao �
Vashon Lodgement TII
Damp,light brown-gray,SIL1Y SAND vrith gavel(SM);contains scattered
cobbles.
g S-1 � b3
32
5-2 Switch to rock core at 9'. 5ot "
10 5-9. ------ -------------
Tukwila Forrnation
RQD=0% (very poor). s5
_�� Damp,light brown to gray.
VOl.CANlCLASTIG SANDSTONENOLCANIC TUFF,weathered fractured,
highly weathered sandstone in fractures,red oxidation staining on fracture
surfaces. - �
RQD=09�e(very poor). ga ',
-14.
-------------------------------
15
RQD=26%(poor).
90
_�g. Dark gray,VOLCANICLASTIC SANDSTONE!VOLCANIC TUFF,
weathered clay so+l with fractures.
20 RQD=1&°/a{very paor).
ss
Brown to tan VOLCANICLASTIC SANDSTONENOLCANIC TUFF '
S-24 weathered, maximum fragment=2".
25 RQD=0°� (very paor).
Less weathered with depth. 85
-Zs.
RQ�=0% (very poor).
_28 80
RQD=0°/a (very poor).
30 S-30 85
floriom of exploration boring at 3Q feet
I
0 35 I
0
n
�
d
� !�
a
z
�
a
�
� Sampler Type(ST):
� m 2"OD 5plit Spoon Sampler(SPT) Q No Recovery M-IVioisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M) � Ring Sample 2 Water Level Q Approved by:
� '�'-' r_�.,ti c��,,,,io � Shalhv Tiihe Samnle 1 �'%ater Level at time of drilling(ATD} (
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-13 1 of 1
Project Name Hazelwood E3ementary Ground Surface Elevation(ft)
Loca6on Newcastle. WA Datum N!A
� �ritlerJEguipment Bortec/ HSFA and Diamond Rit Rock Core �ate StaruFinisn g�5�[1�,R/5��3
Hammer WeighUDrop 140#/ 30" Hole Diameter(in)
c a> �
� y t � a � � N
BIOWS/FOOt E-
� S E coE °'a� 3 �
� � C�tn �E � o a�
� T �' DESCRIPTION � � m �0 2o sa ao °
Vashon Lodgement Till
Damp to molst,yellaw-brovm,SILTY SAND,trace rounded gravel and
cobbles.
Tukwila Formation
Damp to moist,lighf brown-gray, VOtCANIC TUFF,reddish oxidation
staining.
5 S-1 6 5p
S-6.2 45
---------------------------------
Dark brorm-gray VOLCANICLASTIC SANDSTOtVE,slightly weathered,
some red oxidation.
10 RQO=0.229'0 (very Poor))
90
-11.
RQD=20°k(very poor)
90
15 -15. Blue-gray interbedded andesitic BRECCIA and TUFF,some red-black
oxidation staining on fracture surfaces.
-16. RQD=50%(fair). �
RQD=569'0{fair).
1Q
-------------------------------
20 8rown-gray VOLCANICLASTIC SANDSTONE.
-21.
�
RQD=40°�(pc�or).
25 �
Blue-gray,interbedded andesitic BRECCIN and TUFF.
-26.
RQD=80%(goodj.
30 S-30 to
Boriom of expbration boring al 30 feet
g 35
0
N
r
d
G
E
d
>
0
Z
�
a
c�
a Sampler Type(ST):
a m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Masture Logged by: MT
o � 3"OD Split Spoon Sampler(D&M} � Ring Sample SZ WaEer Level() Approved by:
m
N � �...w o.......�., i Chalhv Ti�ho�a�„�iP 1 Water Level at time of driiling(ATD)
Associated Earth 5ciences, ���. Ex loration L.o
� � � � � Project Num6er Exploration Number Sheet
KE03329A EB-14 1 of 1
Project Name Hazelwood Elementary Graund Surface Elevation(ft}
Location Newcastle. WA Datum �IA
DrillerlEquipment Bortec/ HSFA and Diamond Bit Rock Core Date StartlFinish R171p3,�3����nn3
Hammer WeightlQrop 140#/30" Hole Diameter(in)
v ° L� � °' `� Blows/Foot �
� a aE �g � �n
� S � � >, SSEa: o d
� T �' �� DESCRfPTION � � m �p 20 30 4a �
Vashon Lodgement Till
Damp,ye{low-brown,SILTY SAND(ML),few rounded gravel.
5
S-1 _ 15
Damp to moist,brown-gray to gray,SILT`(SAND(ML)�nnth rounded gravel. qg 51
10 a�
S-2 50/
Moist,gray,GRAVELIY SAND(SW),trace silt.
i5
S-3 41
32 50f '
5 5. "
20 S-4 21
50! "
25 Moist,blue-gray,SILTY SAND(SM),rounded gravel. 33
S-5
as 5a "
30 �6 31
/ 60/ .•
0 35 27
N g7 5� „
�
DBottam of exploraBon baring at 35.8 feet
> I
0
Z
�
a
�
� 5ampler Type(ST):
� m 2"OD Split Spaon Sampler(SPT) Q No Recovery M-Moisture Logged by:
o � 3"OD Spiit Spoon Sampler(D 8�M) � Ring Sample Q Water Level() Approved by:
� � �.^�c^^��i� � Shelhv Tube Samolel �`Jater Level at time of drilling(ATD) I
_...__ _
Associated Ea�th Sciences, Inc. EX loration Lo
� � � � � Project Number Facploration Number Sheet
KE03329A EB-15 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft)
Location Newcastle. WA Datum NIA
' Driller/Equipment Bortec I HSFA and Diamond Rit Rock Core Date StarvF�nisn �3/71n�r�3n�p�
Hammer WeighUDrop 140#I 30" Hole Diameter(in)
C N _ N
.1.'v' v) U p O � � ♦ y
� a aL —� J N BIOW$IFOOI �
0 T � c�7� �'o m —�° .°�c
DESCRIPTION � � i o 2 0 3 0 4 0 °
Fill
Loose to medium dense,damp to moist,SILTY SAND(SM),oxidation,
mottling.
5
�� Tulcwila Formation
Dense, moist,yeilow-brown,VOLCANIC TUFF with gravel,weathered.
15 B�own-gray,VOLCANICLASTIC SANDSTONENOLCANICTUFF, �
S-� weathered,fractured. 2a • 8
za
RQD= 13%(very poor).
90
_.�g Switched to rodc core at 19'6".
20
RQD=27%(poor).
Gray,VOLCANICLASTiC SANDSTONENOLCANIC TUFF,weathered, s5
gouge zone at bottom of sample,yel(ow clayey si[t in fractures.
25
-26.7
RQD=0%(very poor).
95
30 _30.
Botlom of explaation baing at 3a.5 feet
0 35 I
0
N
^
d
a
E
u
>
0
Z
-a
a
�
� Sampler Type(ST):
o m 2"OD 5plit Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o � 3"OD Split Spoon Sampter(D&M) � Ring Sample SL Water Level O Approved by:
N �'`i Rrah Camnla � Shelbv Tube Samole 1 water Level at Gme of driliing(ATD}
Associated Earth Sciences, ���. Ex loration Lo
� � � � � Project Number Exploration Numbe� Sheet
KE03329A EB-1fi 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft)
�ocation Newcastle. WA Datum �IA
DnllerlEquipment Bor#ec/ HSFA and Diamond Bit Rock Core Date Start/Finish /{�RIt13�R/R1�[l(1�
Hammer WeighUDrop 140#/30" Hole Diameter(in}
c a� _ �
� y V� � N � q�
� a o, �,a� -� mf BIOWS/FOOt F
aQi S � �° �' �E=? o� �
� T �' �� DESCRIPTION " � m �o zo 3o ao °
Forest DufflTopsoil
��fUD��.��9wn SILTY�BIVD o��Cd�:—————————————
Vashon Lodgement Till
Damp,yellow-brown.SILTY SAND(SM),contains rounded gravel.
5
S-1 �
40 88
48
10
S-2 �
Moist,gray, SILTY SANO(SM)with rounded gravel. �5' so� 5�
15 Color change to blue-gray below 15'. a5
S-3 5 4. " 50/ 5"
20 S� 40
SOI ^
Bottom of exploraGon boring at 23 feet '
25
30
0 35
N
n
m
a
u
>
0
Z
�
a
c9
�a�' Sampier Type (ST):
� m 2"OD Split Spoon Sampier(SPT) D No Recovery M-Moisture Logged by:
o !,ll 3"OD Split Spoon Sampler(D&M) � Ring Sample SL Water Level{) Approved by:
� i� (,roh Qamnla � Sheibv Tube Samole 1 ��ater Level at time of driiling(ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-17 1 of 1
Project Name Hazelwood Elementary Ground SurFace Eievation{ft)
Locaaon Newcastle WA oatum �/A
' Dril(erlEquipment Bortec!HSFA and Diamond Bit Rock Core Date Start/Finish g/R1p,3,8�R/�(1(L3
Hammer Weight/Drop '140#1 30" Hole Diameter{in)
��.. y t�O '•��- N � N
� Q a y� -r �n BIOwS/FOOt f-
p T � �� �o � m �
DESCRIPTION " � �0 2a so ao °
Forest Duff
os am dark r tivn fLTY D M o i .
Vashon Lodgemerrt Till
Damp,yeflow-brown,SILTY SAND (SM),few raunded gravel and cobb{e.
5
S-� o' so; �• I
�� S'2 Damp,gray SIITY SAND(SM)with gravei. � 5or ��
15
20 S-3 r .
No sample recovery. 50l �
25 g� �
50! "
Bottom of exploratio�boring at 25 feet
30
1
0 35
N
r
d
a
E
v
>
0
z
�
a
c�
m Sampler Type{ST):
o m 2"OD Split Spoon Sampler(SPT) D No Reccrvery M-Masture Logged by:
o � 3"OD Split Spoon Sampler(D 8�M) � Ring Sample � Water Level(} Approved by:
� �? rr�h Camnin � She(bv Tuhe Sam�le Z �'Jater Leve!ai time of drilling{ATD)
Associated Earth Sciences, ���. � loration Lo
� � � � � Project Number Expioratlon Number Sheet
KE03329A EB-18 1 of 1
Project Name Hazelwood Elementary Gmund SurFace Elevafion(ft}
�.ocation Newcastle. WA Datum NIA
Driller/Equipment Bortec/ HSFA and Diamond Bit Rock Core Date 5tart/Finish �/�31[]��$JRl2(l�'�
liammer Weight/Drop 140#/30" Hole Diameter(in)
v � Up O > � v�i
L a —� � � BlowslFoot °'
a 5 E �� F
°�n � 3
0 T � a � m .c
DESCRIPTiON � � �0 20 30 40 °
Vashon Lodgement Till
Damp,yellow-brown,SILTY SAND(5M)with rounded gravel and cobble.
5
5 � 23
36 50/ "
0l
Damp to moist, gray,SILTY SAND(5M),with rounded gravel and cobbie.
10
Gravel content increases with depth.
15 5-2 r 50l „
Bottom of expbration horing at 15 feet
i
I
20 I
25
30
$ 35
N
�
d
a
E
a
�
a
2
�
a
�
� Sampler Type(ST):
� � Z°OD Split Spoon 5ampler{5PT} � No Recovery M-Moisture Logged by:
o � 3"OD SpUt 5poon Sampler(D E�UI) � Ring 5ample � Water Level() Approved by:
n �� r_��r, c�,T,.,ia l� ShPihv Tuhe Samnle 1 `�ater Level at time of drilling (ATD)
__._.. _....._.__ _ _ _ _ .. _ _
Associated Earth Sciences, Inc. EX IOCat10Pt LO
� � � � � Project Number Exploration Number Sheet
KE03329A EB-19 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevatlon{ft)
Location Cdewcastle. WA Datum N/A
, DrilledEquipment Bortec/HSFA and Diamond Bit Rock Core Date StartlFinish RI�m��R/$�QQ3
Hammer WeighUDrop 140#/30" Hole Diameter(in)
v y C)� O > � l i N
� a a'� a� J N B�OWSfFOOG H
� S m c�cA �E m ° z
° � `� DESCRIPTI�N " � m 10 2o so ao °
Vashon Lodgement Till
Damp,yellow-hrown,SILTY SAND(Sh4)with rounded gravel,scattered
cobble.
5 S-i Damp, brnwn-gray,SILTY SAND{SM)with rounded gravel and cobble Q� , Sol ^
10 S-2 �� •
Increase in gravel cantent wifh depth.
15
Moist,blue-gray,SILTY SAiJD(SM}with rounded gravel and cobble.
20 S-3 5 !2. ° I
50/ .5"
25
S-4 �! '
30 5oi <.
Bottom of exploration boring at 30(eet
a 35
ry
A
m
E
m
>
0
z
�
a
�
� Sampler Type(ST}:
o m 2"OD Split Spoon Sampler(SPI� Q No Recavery M-Moisture Logged by:
o � 3"aD Split Spoon Sampler(D&M) D Ring Sample Q Water Level(} Approved by:
m � �_..� c....,..�„ I� ShalhvTiEha Samnle 1 �ater Level at time of drilling(ATD)
Associated Earfh Sciences, Inc. EX loration Lo
� � � � Pro}ect Number Explorat(on Number Sheet
KE03329A EB-20 1 af 1
Project Name Hazeiwood Elementary Ground Surfiace ElevaUon(ft}
�ocacion Newcastie. WA Datum �q
Driller/Equipment Bortec/ HSFA and Diamond Rit Rock Core Date SiartiFinish ���� ����fp�
Hammer WeightlDrop 140#/30" Hole Diameter(in)
v y L O j � � y
d N
� 5 E n,a m°1 � � BIOWS/FOOf �
p T tj C�u� �o cv m �
DESCRlPTfON � � 16 20 3o ao �
Tukwila Formation
S-1.4
Blue-gray,interbedded andesitic BRECCIA and TUFF,red oxida6on,
fracture surfaces.
RQD=Q%(very poor},
1
5 S-4.6
Yellaw and gray clay in fracture at 6'.
Weathered to red-brown sand at battom.
RQD=0%(very poor).
S-8,4 �
10
RQD=0°� {very poor}.
..11.7 95
B1ue-gray,interbedded andesitic BRECCIA and TUFF
RQD=95%{exceilent).
15 to
-'[6.
RQD=90%(excellent).
2Q �o
-21.
' RQD=95% (exceilent). ,
25 t o
S-27
Bottom of expioraUon boring at 27 feet
30
g 35
N
^
N
E
>
0
z
�
a
c�
� Sampier Type(ST):
� � 7'00 Split Spoon Sampler(SPT) � No Recovery M-Masture Logged by: MT
o m 3"OD Split Spoon Sampler(D 8 M} � Ring Sample 2 Water Level(} Approved by:
m � �.�� e^^-��� �I �halhv Ti�ha Samole 1 Water Level at time of drilling(ATD)
Associated Earth Sciences, tnc. EX loration Lo
� � � � � Project Number Exploratlon Number Sheet
KE03329A EB-21 1 of 1
Project Name Hazelwood ElementaryL Ground Surface Elevation(ft)
�ocation Newcastle. WA Datum nl/A
� DrillerlEquiQment Bortec/ HSFA and Diamond Rit Rock Core Date StartlFinish R/11/tl'��RJ11/f1:�
Hammer Weight/Drop 140#130�� Hole Dlameter(in}
c a� �
o > _
$ a a� �� � u� BIQWS/�OOt �
p T �j C�c� �o � m �
DESCRIPTION � � �0 2o so ao °
Tukwila Fomeation
Loose to medium dense,damp,yellow-brown,SILTY frne ta medium
_.� 7 SAND SM .
---�—�--------------------------
Biue-gray,interbedded andesitic BRECCIA and TUFF.
RQD=0%(very pOOr).
S-3.4 95
5
RQD=78%(good).
to
S-8.5
RQD=70%(fair).
10 -S0. ta
RQD=73°�6(fair).
1Q
-13.
15 �
RQD=95% (excelient).
io
-18.
20
RQD=$°�6(good}.
to
-23.
25
RQD=95%(exceilent).
�o
S-29
30 Botiom of exploration boring ai 29 feet
a 35
N
n
W
E
u
>
0
z
�
e
c�
� Sampler Type(S3):
o m 2"OD Split Spoon Sampler(SPT) Q No Recovery M-Moisture Logged by: M7
� � 3"OD Split Spoon Sampler(D 8 M) ❑ Ring Sample 2 Water Level{) Approved by:
0
� � C;rah Samnla � Shelbv Ttibe Sampie 1 Water Level af time of dnlling(ATD}
Associated Earth Sciences, f��. Ex loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-22 1 af 1
Project Name Hazelwood Efementar� Ground Surface Elevation(ft}
Location NewcaStle WA Datum N/A
DrilledEqulpment Bortec!HSFA and Diamond Rit Rock Core Date Start/Finish �f1�p.�,�11�I(1,�._
Hammer WeighUCkop 140#130" Hoie Diameter(in}
� N V � J � � y
� Q aa �a� -� y BIOWS/FOOt F
o T � �� �o � m �
�� DESCRIPTION � � 10 20 3o ao °
5-0.4 Tukwila Formation �
'Blue-gray,interbedded andesitic BRECCIA and TUFFACEOUS
SANDSTONE,fractured(i"to 3"fragments)dark red to black oxidation
staining an fracture surfaces.
RQD=10%(very poor}.
so
5 -4.7
Yellowish sand filled frach�res,biack and orange oxidation staining on
fracture surfaces.
RQD=54% {fair},
1
�0 -10.2
Some black oxidaGon staining on fracture surface. �
RQD=90°�(excel�ent).
�o
-14,
15 1 1!2"of fractured ANDESITE in middle of sample.
f2QD=83%(good}.
�c
-19.
20
RQD=9D%{excellent}.
------------------------------- ;o
Blue-gray andesitic BRECCIA. �
-2A,
25
RQD=86°!0(good}.
�o
-29.
30
Bottom oF expioration ba-ing at 29 5 feet
0 35
N
n
N
C
E
v
>
0
Z
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m Sampler Type(ST):
� m 2"OD Split Spoon Sampler(SPT} � tJo Recovery M-Moisture l.ogged by: MT
o � 3"OD Spiit Spaon Sampler(D&M} � Ring Sample 2 Water Levei() Approved by:
m 1 Water Levei at lime of driiling(ATD)
:n r r_��ti e�.,,,,ie I-I Shelhv Tiihe Samole -
Associated Earth Sciences, inc. EX IOi'attOCl LO
� � � � � Project Number Exploration Number Sheet
KE03329A EB-23 1 of 1
Project Name Hazelwaod Eiementary Ground Surface EfevaHon(ft}
t..ocatton Newcastle. WA Datum (�/A
t Drillerl�quipment Bortec! HSFA and Diamond Bit Rock Core Date StartlFinish R!1�l{L�/1�/�,(�,3
Hammer WeighUDrop '140#!30" Hole Diameter(in)
� N U 0 � � � N ��.�.
" �� �,� � � Blows/Foot � I
� S � �� �E � o L
" T `� DESCRiPTION � � � �a zo so ao �
Vashon Ladgement Till
Damp,yellow-brown,SItTY SAND(SM)with rounded gravel and cobble.
5 S,1 30 50�
Color change at 6.5'to gray.
10 �2 21
ol SOI ^
15
20 S-3 � �
50! `
25
Cotor change to blue-gray at 26'.
30 g.4 01
50/ ^
Bottom of expbration boring at 30.5 feet
0 35
0
n
�
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>
0
2
�
a
t�
� Sampier Type{ST):
� � 2"OD SpGt Spoon Sampler(SPT) � No Recovery M-Moisture logged by:
o � 3"OD Split Spoon Sampler(D&M) � Ring Sample SL Water Level() Approved by:
�? ��1 (;rah Samole � Shelby Tube Sample 1 �Nater Level at time of drilling(ATD)
Associated Earth Sciences, Inc. EX IOCat1011 LO
� � � � � Projecl Number Exploration Number Sheet
KE03329A EB-24 1 of 1
Project Nama Hazelwood Elementary Ground Surface Elevation(ft)
�ocation Newcastfe. WA �atum N�A
Driller/Equipment Bortec/ HSFA and Diamond Bit Rock Core Date StartlFinish �/1�l(1,�,�(1���Q�_
Hammer WeightlDrop 14Q#/30" Hole Diameter(in)
v `� V O � N � y
,= n a� =y a� -� v� BIOWS/FOOt �
p T � �� �o � m r
DESCRIPTiON � 3 �o �o so ao °
Vashon Lodgement Titt
Damp,yellow-brown,SILTY SAND(SM}with rounded gravel and cobble.
5
10 S_� 5 /5_ "
Golor change to gray at 10'. so� s•�
15
Boulder at 17'-moved 5'east.
20 S-2 rs. �
5oi s"
Color change to blue-gray at 22'.
25 '
I
3� S-3 � 4
Bottom of expbretion boring at 30 25 feet �
�" 35 (
0
N
T
W
D
O I
Q
Z
7
� !
� Sampler Type (ST): I
� m 2"OD Split Spoon Sampler(SPT) � No Recovery M-(Noisture Logged by:
� m 3"OD Split Spoon Sampier(D&M) ❑ Ring Sample � Water Levei() Approved by:
0
m �`v Grab Samole � Shelby Tuhe S2mple 1 �Nater Level at time of driliing(ATD)
_ -- -J
Associated Earth Sciences, Inc. EX 101'atlOtl LO
� � � � � Project Number Explora6on Number Sheet
KE03329A EB-25 1 of 1
Project Name Hazelwo0d Elementary Ground Surface Elevallon(ft) 360
Location NeWcaStle. WA Datum N/,g
' DrilferlEquipment Bot'teC Date StartlFinish 11!'!4/Q3,11/14/�fln4
Hammer WeighUDrop 140#/30'� Hole Diameter(in)
� ° �� � " `� Blows/Foot �
'� J u�
G� S E � 7Er �a N O m
°� � C9 cn E ia — .c
� T `� DESCRIPTION ��� m �0 2a so ao °
Topsoil
L o m i t da b wn 1 TYSn t i D
Advance Outwash
Loose to medium dense,light brown to brown-gray,SILTY fine to coarse
SAND with fine to coarse rounded gravel.
5
�
10
----------- TukwilaFortnatio�-----------
Dense,moist,9raY SANDSTONE.
'f 5 8otiom of exploration troring at t4 feet
2a
i
2s
30
0 35
N
O
N ,
V
a
E
m
>
0
Z
�'a I
U �
� Sampler Type (S"n:
o m 2"OD Split Spoon Sampier(SPT) � No Recovery M-Moisture Logged by: MT
� � 3"OD S I�t S oon Sam ler D&M Rin Sam le �? Water Leve! Approved by:
o P` P P E ) ❑ 9 P t)
� �� - - � ��_��..T_�_ �___�_ Y Water Level at time of drillinq(ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � Project Numbet Exploration Number Sheet
KE03329A EB-26 1 of 1
Project Name Hazelwood Element0ry Ground Surface ElevaUon(ft� 401
Location Newcastle. WA Datum N/A
DriiledEquipment BOrteC Date StartlFinish 11114/(1g,11/14l�C1(13
Hammer WeighUDrop 140#/30" Hole Diameter(in)
� tn UO '.Oa d � c t�n
n Q� �N J �p B�OW.S/I���t E-�-
a S E �° � ��m o u�
� T `� �� DESCRIPTION � � m io 20 3o ao °
Topsoii
s m i t a k b w I TY fi AND
Advance Outwash
Medium dense.moist to wet,yetlow-gray-brown,fine to medium SAND,
few rounded gravel.
--------------.-----------------
fukwila Formation
Medium dense,maist to wet,yelk�w-gray-brown,SILTY fine to coarse
5 SAND.
10
Medium dense,satwaffid,blue-gray, SILTY f ne to coarse SA1VD.
15
-------------------------------
Dense 15.5'to 17'.
-------------------------------
Medium dense 17'to 20'.
2a -----------------------
Very dense at 2Q'
Bottom of exploration boring at 27 feet
25 '
I
30
0 35
N
O
N
Y
a
E
m
>
0
2
�
a
�
� Sampier Type(S7):
� � 2"OD Split Spoon Sampler{SPT� � No Recovery M-Moisture Logged by: MT
o � 3"OD Split Spoon Sampler(D&M) � Ring Sampie SZ Water Level(} Approved by:
v��i � r_��h c�,,,�io �:'� Shalhv Tuhe Samoiel �'fater L2vel at time of drilling(ATD}
Associated Earth Sciences, ���. Ex loration Lo
� � � � � Project Number Exploratlon Number Sheet
KE03329A EB-27 1 of 1
Project Name Hazefwood ElementarX Ground Surface Eleuation(ft) 390
location Newcastle.WA Datum NJA
' DrillerJEquipment BOtteC Date Start/Finish 11(14/(���11114i7(1(1�
Hammer WeighUDrop 140#/30" Hole Diameter(in?
c m
� �n U`p , O y iD �n
� a o,a =y� � �n BIOWS/FOOf F
o T v�i �� �� f9 m '�
DESCRIPTiON � � 10 20 3o ao �
To psoii
Loose,moist,darfc brown,SILTY fine to medium SAND,organic.
- ---------- --------------
-----Tiil
Medium dense,moist,yellow-hrown to gray,SILTY fine to coarse SAND,
rounded gravel{weathered).
5
10 Dense,moist,brown-gray io gray,SILTY fine to coarse SAND,rounded
grave!(unweathered).
1� Moisture content increase.
-------------
+ Tukwila Formation
Moist,biue-gray BEDROCi(.
V nse t 1 '.
20 Boriom of expbra4on boring at 19 feel
25 I'
30
a 35
N
O
N
S
E
d
>
0
2
7
a
�
� Sampler Type (ST):
o m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisfixe Logged by: MT
� � 3"OD S lit S oon Sampler D 8 M Rin Sam le �? Wate�Level Approved by:
o P� P t ) 9 P 0
� � (,roh Camnlc. � Shelbv Tube Samo:e 1 �h'ater Levef at Gme of drilling(ATO)
Associated Earth Sciences, (nc. Ex loration Lo
� � � � � Project Number Exploration Number SFtaet
KE03329A EB-28 1 of 1
Pro}ect Name Hazelwood Elementary Ground Surface Elevation(ft) 403
Location Newcsstle. WA Datum j�/A
Driller/Equipment BorteC Date StartlFinish 11/1d!(��,11/14/�f111�
Hammer Weight/Drop 140#!30" Hole�iameter(in}
� N V O a 'U � N
�a S E �0 E y a� 3 BIOWS/FOOt `
U�`u�'S �E m � r��.
p T � o m
DESCRIPTION " � �a za 3a ao °
Fi11
4"to 8"quarry spafis.
Vashon Lodgement Till
Medium dense to dense with depth,brown to gray,SILTY fine to coarse
SAND,rounded gravei.
5
10
Wet at 13'.
15
Very dense.
Tukwila F rmation
Bottom of expbration boring at 18 feet
20
25
�I '
30
� 35
0
0
N
O
N
d
E
a
�
0
z
�
a
c�
� Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: �(T
o � 3"OD Spiit Spoon Sampler(D&M) � Ring Sample �? Water l.evei(} Approved by:
� F� �__� �_....,_�_ i:'1 cho�ti„ ,—„ho c�m�io� Water Level at time of drilling(ATD}
Associated Earth Sciences, Inc. EX toration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-29 1 of 1
Project Name Hazelwood Elementary Ground Surface Eleva6on{tt) 404
Location Newcastle. WA �atum _N/A
' Dnller/Equipment BOrteC Date StarUFinish �1i1Qrn��11/1d1�(lll�
Hammer Weight/Drop 140#/30" Hole Diameter(in)
�3
� °' �� ' � � Blows/Foot �
—� � �
o. S E La° E, �'a u� 3 �
o T � C9 cn �o i� m L
DESCRIPTION � � 10 20 3o ao °
Topsoil
Loose,wet,dark brown,SILTY fine SAND,organic.
Vashon Lodgement Til!
Medium dense,wet,light brown,SILTY SAND,rounded gravel.
Medium dense,moist,light browm to brown,SILTY SAND with gravel.
5
Tukwiia orm ion
Boriom of exptoration boring at T teet
10
15
20
25
30
^ 35
0
N
O
N
O
E
m
>
0
Z
�
a
� �
� Sampler Type(ST):
� m 2"OQ Split 5poon Sampler(SPT} D No Reco�ery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&tvtl � Ring Sample � Water Level Q Approved by:
a � r-�� c�m��� �'. Shalbv Tube Sam�le 1 `�"���er Level et time of drilling(ATD}
Associated Earth Sciences, Inc. �X loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-30 1 of 1
Project Name Hazelwoad Elementarv Ground Surface Etevadon(ft) _408
Location NeWCastle WA Datum �!A
nrilledEquipment Bartec Date StartlFinish �9114JQ3,�1/14/�()tl�
Hammer Weight/Drop '140#/30'� Hole Diameter(in)
v � L� —N J y �
Blows/Foot �-
a S E �E, �a � o `y
0 T N C9 cn o m m .c
DESCRIPTION � � �0 20 3o ao °
Topsoil
Loose,moist,dark brown,SILTY fine to medium SAND,aganic.
Vashon Lodgement Till
Medium dense,mast,light brown to gray-brown,SILTY fine to medium
SAND with fine to medium rounded gravei.
5
Dense below 5.
Wet at 9'.
10
15
Tukwila Form tion
8ottom of exploration boring at 17 feet
20
25 ,
3Q
0 35
N
O
N
D
E
>
0
z
�
a
c�
� Sampler Type(ST):
� m 2"OD SpGt Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Spfit Spoon Sampler(D 8 Nt) � Ring Sample Q Water Level() Approved by:
N h�� f:rah CamnlP n Shelhv Tuoe Samolet �Vater Level at time of drilling(ATD)
� Associated Earth Sciences, lnc. EX loration Lo
� � � � � Project Number Expioratlon Number Sheet
KE03329A EB-31 1 of 1
Prqect Name Hazelwood ElementarX _ Ground Surface Etevation(ft) 416
Locatlon Newcastie. WA Datum N�q
, DrilledEquipment BOfteC DateStartlFinish 11/14/f1'�,11/1df�(�(1�
Hammer WeighUDrop 140#/30" Hole Diameter(in}
�
a S E �$ c�j � � BIQWS/FOOt F-�.
t � � ` N
❑ T � �� �� � m t
DESCRIPTiON � � �0 2o so ao °
Topsoii
toose,moist to wet,dark brown,SILTY fine SAND.
Vashon Lodgement Tiii
----------
Wet to moist(below 3'),light brown to gray-brown,fine to medium SAND,
rounded gravel.
5
10
15
Tukwila Formation
Botlom of expbraiion boring al 16 feet
20
25
30
g 35
N
C
N
W
E
d
>
0
Z
�
a
�
� Sampler Type(ST):
� m 2"OD Sp1it Spoon Sampler(SPT} � No Recovery M-Masture �gged by: MT
� � 3"OD S lit S oon Sam ier(D 8 M Rin Sam le �? Water Level Approved by:
o P� P P ) � 9 P �)
" � � � -. ,. `-! ��..��.,,-,.�.. �_.....�,.Z th'ater Level at time of driliing(ATD)
Associated Earth Sciences, Inc. � �X loration Lo
� � � � � � Project Number ExploraUon Number Sheet
KE03329A EB-32 1 af 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft) 415
Location Newcastle.WA Datum �IA
Driller/Equipment BorteC Date Start/Finfsh 11/14/Q�3,11/14[�Cif1�
Hammer Weight/Drop 140#/30" Hole Dlameter(in)
� y U— O > ° "
L a a E �a` y BIOWS/FOOt �
aQi S m �tj �E � ° t
n T `� DESCRIPTION � � m 10 20 3o ao °
Topsoil
Loose,moist,dark brown,SILTY SAND,organic. ,
-------------------------------
Vashon Lodgement Trll
Medium dense,damp to moist,yellow brown to gray,SILTY SAND with
gravel.
5
Dense at T.
1Q T Fo ati n
Boltom of expbration boring at t0(eet
15
20
25 ,
30
�
I
0 35 �
0
N
O
N
Y I
� '
�
Z
�
a
c�
� Sampler Type(ST}:
� m 2"OD SpGt Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Spiit Spoon Sampler(D&M} a Ring Sample 2 Water Level() Approved by:
� � l:rah�amnla r� Shelbv Tube Samnle S �ater Level at time of dritling {,4TD) I
Associated Ea�th Sciences, Inc. Ex loration Lo
� � � � � Project Number Exploratlon Number Sheet
KE03329A EB-33 1 of 1
Project Name Hazefwood Elementary Ground Surface Elevation (�t) 417
�ocation Newcastle WA • Datum NIA
� Drilier/Equipment BO�teC DateStart/Fnish 11/14/ '�,11/1d/�f1��
Hammer Weight/Drop 140#/30" Hole Diameter(in)
c a� �
� ° L� —� J `� 8lows/Foot ,�
o T in �� �E y � �
DESCRIPTION o � m �
v � 10 20 3Q 40 �
Topsoil
Loose,moist,dark txown,SILTY fine SANO.
Vashon Lodgement Tili
Medium dense,moist,brown to gray,fine to medium SAND,rounded
gravel.
5
Tukwila Forma i n
Bottom af explaration boring at 8 feet
10
i5
20 '
�I
25
30
$ 35
N
O
ry
m
�
>
O
Z
�
a
c�
� Sampler Type(ST):
o m 2"00 Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: Ml"
o � 3"OD Split Spo�n Sampler(D&P�) � Ring Sample 2 Water Level Q Approved by:
Q � - . .. � `-I ��„�,,,,T,,,,,, �.,.�„�„1 VJater Level at time of drilling(ATD)
Associated Earth Sciences, �►,�. Ex loration Lo
� � � � � Project Number Exploratlon Number Sheet
KE03329A EB-34 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft) 413
Location NewCaStle. WA Datum N/A
DriilerlEquipment BOfteC Date Start/Finish ��/� /f14��1�R12Qji4
Hammer WeighUDrop 140#/30" Hole Oiameter�n)
� � L� O > ° fn
� � d � N
� a Q �m � N BIOWSIFOOt �-
a T � �u''i �'�� o `m
DESCRiPTiON � � m L
U � 10 20 30 40 �
Vashon Lodgement Till
Dense,moist, light yeliow-brown, SILTY SAND with fine to medlum gravei.
5 Dense to very dense,moist,light gray,SILTY SAND wiifi fine to medium
gravel.
�� Smootfi impenetrabie surface encountered at 12.5'interpreted to be i
Tukwila Formation.
Bottom of exploratio�boring at 12_5 feet
No ground watedseep2ge.
15
za
25 , '
30
35 I
0
N
N IG
�
�
� l
� Sampler Type(ST): �
� m 2"00 Split Spoon Sampler(SPT) � No Recovery M-Moisture �ogged by: MT
p � 3"OD Split Spoon Sampier(D&M} � Ring Sample � Waier Level() Approved by:
m I� (:rah Samnla i 1 Shelbv Tube Sample 1 �'Vater Level at time of dnlling(ATD) I
Associated Earth Sciences, �n�. Ex Ioration Lo
� � � � � Project Number Explo2dan Number Sheet
KE03329A EB-35 1 of 1
Project Name HaZelwOOd ElementarX Ground Surface Elevatisan(ft) 416
�ocation Newcastle. WA Datum NIA
' drillerlEquipment BOTteC Date Start/Finish ��(��/(L*�i�F��nna
Hammer WeighUDroQ 140#1 30" Hole Diameter(in)
� � V p o y �p u�i
'�� � -� �n BIOWS/FOOt �
a 5 E �° E, °'n � 3 �
°' �n c�v� �� � ° °'
� T �' DESCRIPTION � � m to 2� ao ao �
Tapsoil
Q�.���1,dd�b�4�YEi..�L�,TY_fi��A�1�2�9��3�i�————————
Vashon lodgement Titl
Medium dense,wet to saturated,(ight yellow-brown,SILTY SAND with
g ravel.
Dense,moist,light yellow-brown,SILTY SAND with gravel.
5
�� Becomes light gray at 10'.
More moist and coarse at 12'.
Wet at 14'.
�5 More gravel at 14.5'
fus on b drock surtac - li irr ula surta .
9oBom of explorotion boring at 15 feel
No ground v�raterJseepage
20
25 I
I
3a
35
0
N
�
U
N
�
7
a
�
� 5ampler Type{ST):
� m 2"OD Split 5po�Sampler(5PT} Q No Recovery M-Moisture Logged by: MT
o � 3"OD Split Spoon Sampler(0&M) � Ring 5ample .2 Water Level() Approved by:
m 1 Water Level at time of drillin ATD
�n � r...ti e.,.,,,.,ie rr I Shelhv Tuha SamolP - 9� �
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Expioration Number Sheet
KE03329A EB-36 1 of 1
Project Name Hazeiwood Elementar}C_ Ground Surface Eievation(ft} 415
LocaHon NewCBstf e WA Datum N/A
DriNer/Equlpment BOrteC Oate Start/Finish n���fi�na��l�fil2{Z�Q
Hammer Weight/0rop 140#/30" Hofe Diameter(in}
� y V O J N � p)
n �E �a� 3 B{OWS/FOOt !—
O T `u°� C7v� �'� m � t
DESCRIPTION � �
v 3 10 20 30 40 �
Topsoii _
J-Qose�rao�t.�alk��sv�n s1�L�'�a��ANQ.4��————————�
Vashon Lodgement Tiii
Medium dense to dense,wet to moist(upper 6"saturated)light
yetlow-brown,SILTY SAND with gravel.
5
i
i
�
BecQRle�lfg.h�a�.at�5'--------------------
10 Tukwil Formati •sm h dril in su '
6ottom of expb2tion boring at 8.5 feet
No graund water/seepage.
15
20
25 � '
I
30
35
0
N
N
V
A
�
�
a
�
� SampierType(ST):
o � 2"OD Spiit Spoon Sampier(SPT) � No Recovery M-Moistu�e Logged by: MT
o � 3"OD Split Spoon Sampler(D&M) � Ring Sample S_Z Water Level Q Approved by:
�' � Grab Samole � Sheiby Tube Sample 1 �'�'2ter Level at time of dnlling{ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-37 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft) 417
�ocanon Newcastle. WA oatum �,�p
' Driller/Equipment BOfteC Date Start/Finish n�i��ma,2/�t� f)d
Hammer WeighUDrop i40#/30" Hole Diameter(in)
�
� ° L� � ° � B1ows/Foot ,�
�y J tA
a S � L° � �am` a y
p T � �� o � m L
DESCRIPTION " � �0 2o ao ao °
Topsoil
Qo�e,�i�,,�ark�rQws�.q re�bro�r���Y fine SANt�o���.___
Vashon Lodgement rll
Medium dense to dense,moist, light gray-brown,SILTY SAND,few gravei.
g
5
10 �tc�tedat 10'.------------
------------
Tukwila Formation
Medium dense to dense,saturated,yellow-brown, SILTY SAND.
15
-------------------------------
Dense,saturated,yellow-brov�m,SILTY SAND.
�
20
Flowin w t r at 1 .5'. V d at 19 5' s'
Boliom of explorafron bosing at t9.5 feet
Seepage at 17 5'and 19 S
25
30
35
8
N
1p
L
u
m
�
a
c�
� Sampler Type(ST):
� m 2"OD Split Spoan Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Spiit Spoon Sampler(D&M) � Ring Sample Q Water Level() Approved by:
N � �.-,., c�r„��o (-1 .�nomv T��t,o SamnlP 1 `N2ter Level at time of d�lling(ATD)
Associated Earth Sciences, Inc. EX foration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-38 1 of 1
Project Name Hazelwood Efementary Ground Surface Eleva6on(ft) 414
LocaGon Newcastle.WA Datum NlA
DrilledEquipment B01teC Dafe StartlFinish �7/�R/f14,�/�Fi/�f1(ld
Hammer WeighUDrop 14Q#/30" Hole Diameter{in)
� � � �
.."".. M V� 0 � � + tll
L a aa �N J t� B�OWS�FOOI �
p T � �� �o � m -5
DESCRIPTfON � � �0 2o ao ao °
Tapsoil
_Loo�r�js.t,��rk brows SLLTY fne SAND,organi�________��
Vashon Lodgement Titl
Dense,moist to wet,light brown-gray,SILTY SAND with gravel.
5 More gray at 5'.
-------- --------------------
Tukwita Formation(weathered)
Dense,moist to wet,light yellow-brown to dark blue(altemating)SILTY
SAND,dark blue 1/4"to 1/2"sandstone fragments.
10 1/ " k 9' dens with
Bottom of explaralion boring af 10 feet
Seepage at 7.5'
15
20
25 '
3d
35
0
N
fV
N
7
a
C9
� Sampler Type(ST):
o � 2"OD Split Spoon Sampler(SPT) � No Recovery M-hAoisture Logged by: MT
o � 3"OD Split Spoon Sampler(D&M) D Ring Sample n Water Level() Appraved by:
m n n _. .. _ . _ . � �nt�tor I c�ro!ot t�ma nf ririlli�n lATfll
_ _ .. _.
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE43329A EB-39 1 of 1
Project Name Hazelwood Elementarv Ground Su�face Elevation(ft) 418
Location Newcastle. WA Datum ��q
' Driller/Equipment Bartec Date Start/Finish (}�/��,/�d��/�F�l�Q�4
Hammer WeighUDrop 140#/30" Hole Diameter(iny
� a� �
� N L� '.�� C�1 � N
—a� -� �n BIOWSiFaO� I—
y S � �° E, '?E a? o a`>
U' tn � —
� T �' DESCRIPTION " 3 m �0 2o ao ao °
Topsoil
.�Qo�e m�i�t,Si3�k�rows SILTY�n��/�lVp.4rgani�————————J
Vashon Lodgement Tiil
Medium dense to dense,moist,gray to yeilow-brown,SILTY SAtVD,few
gravel.
5
Very little gravel 5'to 1o'.
10 Tukwita Formaiion
Dense,moist,brown to blue,SILTY SAND, 1/4"sandstone fragments
weathered.
Diffic It to drill at 12. '- lue ss a t 1!4"to 1/ ".
Bottom of expb2lion boring at 12 5 feet
No grotmd waterlseepage.
15
20
25
30
35
a
0
N
�
�
m
�
�
a
�
m Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SPT) a No Recovery M-Masture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M) � Ring Sample n Water Level() Approved by:
0
in � r�__�, c.......�,. � Chnlhii Ti iha C�mnlo 1 `rti'ater Level at time of driliing(ATD)
AssociaEed Earth Sciences, inc. EX loration Lo
� � � � � Project Number Exploratlon Number SheeE
KE03329A EB-40 1 of 1
Project Name Hazelwood Elementary Ground Surface E�evation(ft) 412
Location Newcastfe. WA Datum NlA
DrillerlEquipment BOrteC Date StartiFinish fl�/?71f14,2/�7(2Q(14
Hammer Weight/Drop 140#/30" Hole Diametet(in)
v N U� O > ' y
SO
� a aa m�a� � Tn $IoWS/FOOt �
o T <n �`n �a iv m .c
DESCRIPTION " � �0 20 3o ao °
Fill
Organic debris on surface.
Loase,moist,variable color,blue,gray,brown,sandstone fragments 2"to
2'boulders.
5
-------------------------------
Vashon Lodgement Til!(Weaihered)
loose to medium dense,wet,light yellow-brown,SILTY SAND,with gravel.
10 ,
Bottom of e�cploration boring at 11 feet
Drill rig could not get past 4'in either the origirial locatian or the location 5'to the east
Backhoe coukl not excavate fhrough siltstone boulders hAoved approximtely 20'south arid
expvated NS test pil extending into adjaceni!ow area
45
20
25 ,
30
35
�
0
0
N
�
G
u
�a
�
�
a
c7
� Sampler 7ype(ST):
� m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M) C Ring Sample 2 Water Level(} Approved by:
N � �.^� c��^��� �� Shalhv Ti�ha Samole� `�Vater Level at time of drilling (ATQ)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-41 1 of 1
Project Name Hazelwood Elementark Ground Surface Elevation(ft) 408
Location Newcastfe. WA Datum NtA
, Driller/Equipment BOfteC Date Start/Finish ��l��!(L,2/?R/?Offd
Hammer WeightlDrop 140#/30" Hole Diameter(in)
c a�
� a�i s� �° a�i �D aNi
—� -1 �n B�OWSIFOOt F-
y S � `� T �Ea? o a�
(7!!I t0 ( L
� � `� DESCRIPTION �' 3 m �0 2o so ao �
Topsoil
Qo�e m�i�,d�,r�brovv�,�1�TY fin��I�ND org�n��._________
Vashon Lodgement Tili
Dense,moist,light yellow brown,SILTY SAND,little gravel.
5
More gravel at 6'.
C:olor change to light brown-gray at 9'.
10
--------------------
Tukwila Formation(weathered)
Dense,mast,blue,SANDSTONE,fractured(cuttings= 1/4"to 1/2'
sandstone fragments).
15 `
Alternates between blue to yellow-brown at 1'to 2'intervals.
20
Wet at 22.5'.
Saturated at 23.5. �[
bVa r at 24' ve dens fr ctur .
25 Botiom of expbraiion boring ai 24 feet
Seepa9e at 24'
30
35 '
a
N
�
�
A
�
a I
c�
� Sampler Type(ST): 'I
o m 2"OD Split Spoon Sampler(5PT) � No Recovery M-Moisture Logged by: MT �
o � 3"OD Split Spoon Sampler(D�M) � Ring Sample 2 Water Level() Approved by:
� � r_��h c�,-,�io �I Sheibv?ube Samole 1 Water levei at Gme of driiling(ATD) i
Associated Earth Sciences, Inc. EX loration Lo
� � � � � ProJect Number Exploration Number Sheet
KE03329A EB-42 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation{ft) 412
Location Newcastle.WA Datum ntlA
DrillerlEquipment BOrteC Date StartlFinish (1?12R/f14��1�R/�(1f14
Hammer Weight/Drop 140#/30" Hole Diameter(in)
� � v a � a�i � v�i
t a Q �,� � y BIoWS/FOot �
o T cn c�v� �a `° m r
DESCRIPTION � 3 tio 2o ao ao �
Topsoil .
_LQo�e.rtlqi�t.��rk br�v�m SILLY_fir��A�lp,org�ni�________J
Vashon Lodgemerrt Tiil
Medium dense,wet,light gray-brown,SILTY SAND vrith gravel.
5 Dense,moist,U ht
g gray-brown,SILTY SAND with gravel.
Dense to very dense belaw 7.5
_ �p l.ight gray below 9'.
�
�� Blue-gray at 15';more gravel and coarser sand.
' Moisture increase to very moist to wet at 17'to 18'.
i
20
T kwila orm tion•smo th drilii su ae
Bottom of expbra6on boring at 22.5 feet '
No ground v�rater/seepage.
25
30
35
<
0
N
�
u
`m
�
�
a
�
� Sampler Type{ST};
� m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
a � 3"OD Split Spoon Sampler(D&M) � Ring Sample n Water Level{) Approved ay:
m �^'� � � � —�- :'i c���ti.,T„ti� c�,,,.,�01 Water l.evel at time of drilling(ATD)
Associated Earth Sciences, lnc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-43 1 of 1
Project Name Hazelwood Efementary Groimd Surface Elevation(ft) 410
Loca6on Newcastle. WA �atum N/A
, DrillerlEquipment BOfteC Date Start/Finish ?I�RlQd��/�Rl�(lj}d
Hammer Weight/Drop 140#/30" Hole Diameter(in)
y H �a �aJ3 v�i
"' L� BlowslFoot �
o. S E L° � �E _a`? o a�
p T N �� o � m �
DESCRIPTION " � � �0 2o ao ao �
Topsoil _
�2��r►1a��t,��b�+ND SILTY..f����N�,4r9�PJ�————————-�
Vashon Lodgemarrt Till
Dense,moist,light red-brown,SILTY SAND with gravel.
-------------------------------
Dense to very dense,light yeElow-brown to gray,SILTY SAND with gravel.
5
10
-------------------------------
Very dense,moist,blue-gray,SILTY SAND with gravei.
15 -----------,--------------------
ukwita F rmati s th driliin im enat table at 95 5'
Boriom of expbration boring at 15.5 feet
No ground vratedseepage
20
25
30
35
0
N
N
U
A
�
�
a
c�
� Sampier Type(ST):
o � 2"OD Split Spoon Sampler(SPT) Q No Recovery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M} � Ring Sample 2 Water Level () Approved by:
N � �rah Samnle � Shelby Tube Sampie 1 Water Level at time of driiling(ATD)
Associated Earth Sciences, Inc. ` EX loration Lo
� � � � � Project Number Exploration tJumber Sheet
KE03329A EB-44 1 of 1
Project Name Nazelwood Elementar� Ground Surface Elevation(it) 406
Location Newcastle. WA Dacum N/A
DrillerlEquipment BOI'teC Date Start/Finish ��l�gl1'Ld��l�sj?fl(ld
Hammer Weight/Drop 140#/30" Hde Diameter{in)
v � V � � N � N
� a a� �a� � � BIOwS/FOOt �
aai S m �� �E � � �
p T � o � m �
DESCRIPTI�N " � �0 20 3o ao °
Topsail
Loo�e mgi�t,s93_.rk�r�vyT SI�LY�ip_g,SAN0,4rg�r iE________J
Vashon Lodgement Till
Medium dense lo dense,moist to weE,yellow-brown,SILTY SAND with
gravel.
Wet at 4', then moist with depth.
5
Gray and slfghtly coarser with depth.
10
15
Wet at 16'.
7ukwila F rmafon
BoBom of expbration boring at 17 5 feet
Seepage at 4'and 16'.
20
25
30
35
<
0
0
N
N I
u +
m` 1
f
�
�
� Sampler Type(ST): I
� m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: h4T
o m 3"OD Split Spoon Sampler(D&M) � Ring Sample � Water Level() Approved by:
� � 1 `Nater Level at time of drillin ATD)
� r;ran Samnle � Shelby Tube Sample - 9� (
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-45 1 of 1
Project Name HaZelwood ElementaN Ground Surface Elevation(ft) 403
Location Newcastle. WA Datum N/p
' Driller/Equipment Bortec Date Start/Finish 11�/�7/(14,�/�7J��C14
Hammer WelghtlDrop 140#/30° Hole Diameter{in}
c m ,�
� a na m� � h BIOWS/FOOt �
Q T �E `� � �o� m d
C7� ca L
DESCRIPTION � 3 �0 20 3o ao °
Fill
Medium dense,mnist,hlue-gray,SANDSTQNE,cobbles and small
boulders.
-------- ---------------
Vashon Ladgement Till
Loose to medium dense,wet,light brown to gray,fine to coarse SAND,
trace silt
5
10
Dense tn very dense below 12'.
15
Tukwila Formation
Bottom o(expEoratio�boring at 18 feet
See�age at 4'
20
25
30
35
0
N �
� �
L IU
A
�
7
a
�
� Sampler Type(ST):
� m 2"OD Split Spoon Sampler(SPT) � No Recavery M-Moisture Logged by: MT
� I�i 3"OD Split Spoon Sampler(D 8 M} � Ring Sample 2 Water Level() Approved by:
9 �' � . � .- � ����„T,.�.. �-,T..�..1 �Nater Level at time of drilling(ATD) I
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Explora6on Number Sheet
KE03329A EB-46 1 of 1
Project Name Hazelwood ElementaN Gmund Surface Elevation(ft) 404
Location Newcastle. WA oatum N/A
Driller/Equipment BOtteC Date Start/Finish n�i��m4,�/�71�C1(ld
Hammer Weight/Drop 140#130" Hole Diameter(in)
c a� � �
a � � �
� a n �,� � N BIOWS/Foot ,�
o T �n �� �o `��° m =
DESCRIPTION " � �a 20 3o ao �
Vashon Lodgement Till
Medium dense to dense,wet bo saturated,light yellow-brown,S1LTY fine to
medium SAND with fine to medium gravei.
5
Dense,coarser,and light gray with depth.
10 --------------.-----------------
Tukwila Formation
Dense to very dense,moist to wet,blue-gray sandstone fragmenis in
SILTY SAND material ,fragments to i/4"diameter.
15
Boriom of exploration boring at 14 5 feet
No ground watedseepage
20
25 '
!
I
34
I
35 (
0
�
N
V ��
'a
c�
� Sampler Type(Sl�: �
� m 2"OD Split Spoon Sampier(SPT) � No Recovery M!-Moisture Logged by: „4T
o � 3"OD Split Spoon Sampler(D& M) � Ring Sampie � Water Level Q APproved by:
m � Water Level at 6me of drillin (ATD) I
W � Grab Sample � Shelby Tube Sample g
Associated Earih Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Shaet
KE03329A EB-47 1 of 1
Project Name Hazelwood Elementarx Ground Snrface Elevation(ft} 399.5
LoCation Newcastle. WA ' Datum �(jQ
, Driller/Equipment BOPteC Date StartJFinish (j2l�7/ 4 �/�7(�(L4
Harnrr�er WeighUDrop 140#I 30" Hole Diarr�eter(in)
y y �p I � � � N
� a o,'� �m -� v� �IOWS/FQOt �
� T � C7 tn� �� m p�p .c
DESCRlPT10N � � �o zo 3o ao °
Vashon Lodgement Titt
Medium dense to dense,moist tn wet,brown to light brown-gray,SILT(
SANO with gravel.
5 Dense to very dense below 5'.
Gradual color change to light gray.
10
�� Calor change to blue-gray at i5',wet.
Tukwi[ F rmation
Bottom ot exptaration boring at 17 feet
Possi6le seepage al 16'io�7'
20
25
30
35
a
N
h
G
V
A
�
7 �
C
�
m Sampler Type(ST):
o m 2"O�Spiit Spoon Sampier(SPT) � No Recovery M-Moisture Logged by: MT
o m 3"OD Sptit Spoon SarrFpler(D&M) �! Ring Sample S_Z Water Level O Approved by:
N � a�.h Camnla i:1 Shalh�Ttihe Samolel water Level at time of drilling (ATD)
Associated Ea�th Sciences, ���. Ex loration Lo
� � � � � Project Number Exploration Number Sheei
KEQ3329A EB-48 1 of 1
Project Name Hazelwood Elementary Ground Surface Elevation(ft) 40Q
tocation Newcastle. WA Datum �!A
DrillerlEquipment BOrteC Daie Start/Finish 1}2(2�(�4��/��1�f�(14
Hammer Weight/Drop 140#I 3d" Hale Dlameter(in)
�
v tA U Q O Q� � tA
� a n� �,a` � Blows/Foo# �
o T � �`n 3 0 � m s
DESCRIPTION � � �0 2o so ao °
Aclvance Outwash
M�um dense to dense,wet to saturated,light yellow-bmwn,SILTY fine
SANQ with few gravel,
5
--------------.-----------------
TukwiEa Format�on
dense to very dense,maist,ANDESITE BRECC{A and TUFF, 1/8"to i!2"
dark fragments.
10
Bottom of exploration 6oring at 10(eet
15
20
25 '
(
30
35
0
N
N
u
A
�
�
st
V
� Sampler Type(ST):
� m 2"OD Split Spoon Sampler(SP'n � No Recavery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampter(D&M} � Ring Sampis S_Z Water Levei{) Approved by:
N �� f�r�h Samola n Shelbv TuCe Sample 1 Water Leve(at time of drilEing{ATD}
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-49 1 of 1
Project Name Hazelwood ElementarJ� Ground Surface Elevation(ft) 382
�ocation Newcastie. WA Datum NIA
, DriHedEquipment BO�teC Date Start/Finish a�/�R/(14��/�R/�QQ4
Hammer WeightlDrop 140#/30" Hole Diameter(in}
� w U� O � � y
a S E �i, -°' -' � BlawslFoat �
°'o. �- 3 �
� � U tn � E � o a�
� T �' DESCRIPTION " � m �0 20 3o aa �
Topsoil
Loose,moist to wet,dark brown,SILTY ftne SAND,organic.
----------
Advance Outwash
Dense,mast,light brown,GRAVELLY SAND.
Tukw'la Fo ation
Bottom of exploration baring at 3 feet
5 No graund vratedseepage
10
15
20
25
30
35
0
N
N
u
m
�
�
a
�
q Sample�Type(ST):
o � 2"OD Split Spoon 5ampler(SPT) � No Recovery M-Mdslure Logged by: MT
o � 3"OD Split Spoon Sampler(D&M) � Ring Sample S_Z Water level() Approved by:
� � Grab Sample � 5helby Tube Sample 1 '��`�ter Levet at time of drilling(ATD)
Assoc'safed Earth Scier�ces, �n�. Ex loration Lo
� � � � � Project Number ExploraGon Number Sheet
KE03329A EB-50 1 of 1
Project Name Hazelwood Elementary Grcwnd Surface Elevation(ft} 362
�ocation Newcastle. WA oatum NIA
DrilledEquipment BorteC Date StartiFinish ��/�gJ(14,�2�i�nna
Hamrner WeIghUDrap 'f 40#I 30�� Hole Diameter(in)
c N �
� N V O � N � y
BIOWSIFOOt E—
L a a� �� ` 3 a�
a S E � >, � � o d
°� � C9�n E m —
� T �' DESCRIPTION " � m io 2a so ao °
Topsoil
LQ.o�e rnpi�t9 w�t,dark�rQwn,S51�TY fine SANQ,Qrg�nic______J
Vashon Lodgement Till
Dense, moist,light yellow-brown to tight gray,SILTY SAND wifh gravel.
5
10
Dense,wet,�ight gray,SILTY 3AND with fine to coarse gravel.
Wet at 13'.
15 Wetat 15'.
T i Formation
Bottom of expto2tion boring at 16 5 feel
20
25 '
30
35
0
rv
N
U
l9
�
�
a
�
� Sampler Type(ST):
^ m 2"OD 5plit Spoon Sampler(SPT) Q No Recovery M-Moisture Logged by: MT
o m 3"OD Split 5poon Sampler(D&M) � Ring Sample � Water Level() Approved by:
`� � Grab 5ample a 5helby?ube 5ample 1 '�'ater Level at tirne of drilling(ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-51 1 of 1
Project Name Hazeiwood Elementary Ground Surface Elevation{ft} 366
Location Newcastle. WA �atum s�p
' Drilier/Equipment BOI'feC Date Starf/Finish fl�!?71{Ld��1�7!?Qj}d
Hammer Weight/Drop '140#/30" Hole Diameter(in)
c a� N
L a Q� o > � u�
E �,�� `� Biows/Foot �
�a�i S � �� s'E � o m`
� m �
a `� DESCRIPTION � � io 20 3o ao °
Fili
Loose,wet to saiurated,black,SILTY SAND,few gravel.
5 Loose,wet,yellow-brown,SILTY SAND,few gravel.
Loose,wet,mottled black to gray,SiLTY SAND with gravel.
10 --------
------
Vashon Lodgement Tili
Medium dense to densa,wet,yellow-brown to gray,SILTY SAND,fine
gravel. '
15
20 -------------------------------
Tukwila Formation
Battom of expbration 6oring at 21 feet
Boring relocaled 5'north due to prior refusal.
25
30 I
35
e
0
N
�
�L.1
10
�
7
a
�
� Sampler Type(S�:
� m 2"OD Split Spoon Sampler(SPT) Q No Recovery M-Moisture Logged by: MT
o m 3"OD Split Spoon Sampler(D&M) a Ring Sampfe 2 Water Levef(} Approved by:
m
W �� Grab Sample � Shelby Tube 5ampfe� Water Level at ti�r e of drilling{ATD)
Associated Earth Sciences, Inc. EX loration Lo
� � � � � Project Number ExpSoration Number Sheet
KE03329A EB-52 1 of 2
Project Name !-lazelwood Elementar,y Ground Surface Elevation(ft) 382
Location Newcastle. WA �atum nl/a
DrillerlEquipment BolteC Date StartlFinish Q2l�1f14�?/?7/�(tn4
Hammer Weight/Drop 140#/30" Hole Diameter{in)
c a�
,'�.�' � U Q O > � y
L� °1 8loWSlFoot �
o S �n �ET �a` 3
�� a: o a�
T �� o � m L
DESCRIPTION " 3 �0 2o so ao �
Topsoii
L99�e m.4i�,daric br_4wn..�S��'fr�g SA�1Q Qrg�nic�--------
Vashon Lodgement Tili
Medium dense to dense,wet to moist,light brawn,SILTY SANa with
gravel.
5
10
15
i
Color change at 17'fo light gray. �
i
�
I
Seepage at 23'.
25 r
30
I
35
0
�
�
u
A
�
a.
�
� Sampler Type(ST):
� m 2"OD Split Spoon Sampler{5PT} � No Recovery M-Moisture Logged by: MT
o � 3"OD Split Spoon 5ampler{D&M) � Ring 5ample �? Water Levei() Approved by:
� � Grab 5ample � Shefby Tube Sample= Water Level at time of dril(ing (ATD)
Associated Earth Sciences, Inc. EX �oration Lo
� � � � � Project Number Exploration Number Sheet
KE03329A EB-52 2 of 2
Project Name Hazelwood Elementar� Ground Surface Elevation(ft) 382
LocaGon Newcastle. WA Datum iJtA
, DrilledEquipment BOfteC Date StarUFinish n����tpa,�l�7/�f)p�i
Hammer Weigfit/Drap 140#I 30" Hole Diameter(in)
c a�
� y L o � ayi �? a`�'i
� a �o� °�a� 3
BIOWSI�OOt �.-
p T v� �� 3 0 19 m L
DESCRIPTiON � � �0 2o sa 40 °
45
1/8"diameter andesite fragments coming up in cut6ngs.
5a Tu il Formati n
Battom oF exploration boring at 50 feet
Seepge at 23'.
55
60
65
70
I
�
75
a
�
�;
�
�
�
�
a
�
� Sampler Type(ST):
� m 2"OD Split Spoon Sampler(SPT) � No Recovery M-Moisture Logged by: MT
� m 3"OD Spiit Spoon Sampler(D 8 M) � Ring Sample 1 Water Level() Approved by:
� � C;rah Sarnnie [� Shelbv Tube Sample 1 Water Levet at 6me of drilling(ATD)
'
Attachment C: �
Site Plan and Exploration logs �i
Campbell Hill ES '�,
,_
�
` I ; � � ; f
;�! � ; ; : ;
. - i�'� , �' ._ ( . ` I
, I " 1 - - ` �
- '� l—.'y.. =.- �`.-----�-� J '
- __`.---------- _. . ,i � :�� . - —._--__--------_-- -- , I�.
_ � � �1 �.�p ' ' �t0lM t77'W SIIZIt
' .� -^-_--�•--�-'---- -�_'-'_-- � , = ��' _� _ �1�� .r ' a,
� _�.�,j— _---a � y '...
--- • �
...._ � : _--- �,�4_.,.. --- ' � `"r
.I'.;, - r' �.. �
� �x_�--._.—�:- .-- -- -� `--�- - -- - - _ ..-� - .
. ._ -----;{---- . - oEs..a_�-=:_ :� ;(�"
Qa i� ----- I•- �:r:-_-.._.__.._.:...�._.._.._-�. " - \ `�.. 1 ' � '� .
� I r" " � � ' - _ .. - - - -..1��:.._. - - I . .
. . - - - -�- � ���.._. "�� n :�
. - :---�--- �_ - ; � �
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_J � ����.����������������.��.���������
� s� ;s�x s � �
� '�' _ � �� t ':,i�=:��•. �t/TH •—o�r'.�` "�f ' '.�"�"'� �'� !A!M INM .
�� , �i ;� 'S_..t�_ ,�'"� � _�, . N
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:� t� � � -.�- �.r r � y� �`� - �
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i �� /� �-
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'r-� 1�'.� .'. �
'� ---~y�' i" Legend __ � �° ,°°
_ % `:'•� r[cT
;1 �, �" � -� � EB-1 � Approximate location of exploration boring
� Reference: D.A. Berg, lnc.
' i \�. � . /• /r �
FIGURE 1
Assoaatsd Earth Saences, lnc. SITE AND EXPLORATION PLAN
� � � � � DATE 01/01
CAMP6ELL HILL ELEMENTARY SCHOOL RENOVATION
SEATTLE, VVASHINGTON PROJECT N0. fCE00851G
�soc�►�o Ex toration Lo
EARTH Project Number Exploratlon Number Sheet
9C1E1VCE9�INC KE00851 G EB-1 1 of 1
Project Name Campbell Hill Elementary Groand Surface Elevation(ft) 388'
' Loca�on Seattle WA Dabum Tp,�nnr�nhi�,��i�_
Dri1ledEquipment Gregorv Drilling/CME 45C Date Start/Finish ��/�7/(1p,��i����nnn
Hammer WeightlDrop 140#/30" Hole Diameter rn) ��"
v y =� a N � (n
N
m BIOWSIFOOt �
o. aF m°' �
a S E `�° 5. �n � � y
� T �' �� OESCRIPTION � � m o
10 ZO 30 40
� „� •�
S-1 : Fill? 4 2t
Medium dense,moist,mottfed brown,SILN fine to coarse SAND with fine T
to coarse gravel and trace cobbles. (SM)
An�auo►,ri�
5 Mediam dense,very moist,mottled gray,fine to coarse SAND,little sil� 3
S'2 � (SM) 5 t�
- - - - - - -- - - -- - --- - -- - - - - - - s
�� Medium dense,moist,gray,interbedded StLTY SAND and SANd with silt, y
S-3 f w i r v �� 20
Tukwila Fortnation Bedrock e
15 g_4 � Very dense,moist,oxidized brown,SiLTY SAND wiEh Gttle fine gravel. i6
o� • soi •
Boriom of exploration boring at i6 feet
20
25
30
35
$
N
�
�
C�
N
�
�
? Sampler Type(ST):
$ m 2"OD Split Spoon Sampler(SPT) Q No Recovery M-Moisture Logged by: BWG '
o m 3"OD Split Spoon Sampler(D&M) � Rir,g Sample 2 Water Level() Approved by: ;
����,A.�o Ex loration Lo
EARTH Project Number Explo26on Number Sheet
SCIEJVCE9�INC KE00851 G EB-2 1 ofi 1
Project Name Campbeli Hill Elementar�r Ground Surface Elevation{ft) 389'
�.ocation Seattle WA Datum TopnJ�����„-„PT
Dril�erlEquipment Gregory Drilling/CME 45C Date Start/Finish ��i��mn ��i��i�nnn
Hammer WeighvDrnp 140#/30" Hole Diameter(in) i Q^ '
c d �
� ayi V a a m � m
'�� BIOWSIFOOt �
a S E �� °'a `' ;
� � t7� ' �� � ° a`,
T
� `� DESCRIPTION " � � �0 20 3o ao °
�� � �` i�
S-1 = Fill 2 �6
Loose,moist,dark brown,fine GRAVELLY fine SAND,little sil� (SM) a
S-2 �: - . Grades to very loose, � �
1 2
Abtatlon Tili �
5 � Medium dense,moist,gray,SIL7Y fine to medium SAND. (SM) g
S-3 e �ts
7
�� Grades to dense.
S-4 . �a
18 41
23
Tukwila Fartnation Bedrock
�5 S_5 Dense,moist,mottled dark brown,SIL7Y fine SAND.Iittte gravel. (SM} �o A
20 8
18
Bottom of expfo2tion boring at 16.5 feet
20
25
30
35
0
N
(V
�
�
C
n
�
-�
� Sampler Type(ST):
o m 2"OD Sptit 5poon Sampler(SPT} a Na Recovery M-Moisture Logged by: BWG
� � 3"OD S�lit S000n Samoler(D&Ml � Rinn Samole 1 Water I evel fl Approved by;
,�soc,A�o Ex loration Lo �
EARTH Project Number Expforabon Number Sheet
aci�ces��nac KE00851 G EB-3 1 of 1 '
Project Name Cam�bell Hill Elerrtentary Ground Surface Elevation(ft) 394'
' Loqtion Seattle. WA Datum Tn�n�r�nhir.Si�rv�
Dnller/Equipment Gre o DI'lII1f1 /CME 45C Date Start/Finish 1�l�7!(L,1�/77/�flf3(1
Hammer WeighUDrop 140 /30" Hole Diameter(in) ���
I
� N L� � m � N �
a S E �� °'a� 3 Blows/Foot L I�
°� -� m C7�n � �'E � � °'
� `� DESCRIPTION � 3 m �0 20 30 40 °
� i'.� � � 3
S-1 Fill s ,s
Loose,moist,brown,S1LTY fine SAND,trace gravel and cobbies. (SM) 3
Ablatlon Till
5 S_2 Dense,mast,gray,SILTY fine to coarse SAND,IitUe gravel. (SM) � e
t1 33
22
li
10 S-3 . _ Dense,moist to very moist,gray,fine SAND,few silL (SP) s s I
iE a3
25
j� As above.
to
S-4 2p � 7
17
Bottom of expbration boring at 76.5 feet
20
25
30
35
s
N
lV
N
7
C
W
�
�
� Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SP� Q No Recovery M-Moisture Logged by: BWG
o � 3'OD Split Spoon Sampler(D&M) �j Ring Sample 2 Water Level() Approved by:
���,�,� Ex loration Lo
��EARTH Project Number ExploraGon Number Sheet
sc[eeuces,�wc KE00851 G EB-4 1 of 1
Project Name Campbell Hill Elementar}L. Ground Surface Elevation{ft) 394'
location Seaitle.WA Datum Sn��ranhir.Si irvPv _
Drilier/Equipment Greaory Drillincz/CME 45C Date 5tartlFinish �, �2��m:p,i������nnn
Hammer WeighbDrop 140#/30" Hole Diameter(in) 1f}�'
.�_. m L� p m � N
—m -� �n BIOWSIFOOt F--
S a � d— .. ;
a S E ��. ` . � o `m
m m E '- -
a T �' � DESCRIPTfON � � m io 20 30 40 °
�t vi
Abiatlon Tpl
�� _ Me�um dense,moist,gray,SILTY 6ne SAND,trace fine gravei. (SM) g
9 21
12
5 S_2 • Grades to dense. -
9
17 3
19
1� S-3 Very stiff,moist,gray,fine SANDY SILT. (MLy �o s �
I ( I 13 B ,
15
i
Lodgement Tifl
15 Very dense,moist,mottled gray,SILTY fine ta coarse SAND with gravel. 14
S-4 (SM) 2a sz
2a
Bottom of exploration boring at 76.5 feet
i
20
�
�
25
30
35
0
N
l`I
�
7C
R
�
�
a Sampler Type(STy:
�
o m 2"OD Split Spoon Sampier(SPT) Q No Recovery M-Moisture Logged by: BWG
o m 3"OD Split Spoon Sampler(D&M) � Ring Sample Q Water Levei() Approved by:
mr_� _ . _ . —
��A99DCIATED Ex loration Lo I
EARTH Project Number Exploration Number Sheet
sc��o�s.�nac KE00851 G EB-5 1 of 1
Project Name Cam�bell Hiii Elementary Ground Surface Etevation(ft) 398'
Loqtion Seattie.WA Datum �n�graPhir.S���_ I
' Driller/Equipment Grggory Drilling/CME 45C Date Start/Finish i�J�7/flQ�1�/�7/�tl�� I
Hammer WeighUDrop 140#/30" Hole Oiameter pn) 1�°
� � U � � N � N
y
m L a Blows/Foot �
� °� � dm � 3
p T y �� �a � m �
DESCRIPTION " � ip 20 3o ao �
� vi
Ablatlon TiU
Medium dense,moist ta very moist,brown,SILTY fine SAND,little fi�e 3
S-� gravel. (SM) e �zz
ta
5 As above.
S-2 �o ,
11 8
17
'O S-3 Very stiff,moist,gray S1LT,some fine sand. (ML} 7 s
12 7
15
Lodgement Till
�� g.q Very dense,moist,gray,51LTY fine to coarse SAND,some gravel. (5M} 20
ar • 5or •
Bottom of expbration boring at 1&Feet
20
25
30
35
0
N
� �
e`d
7
C
i0
�
� 5ampler Type(ST}:
m m 2"00 Split Spoon Sampler(SP'T7 � No Recovery M-Moisture Logged by: BWG I
S �
0 3"OD 5plit Spoon Sampler(D&M) a Ring Sample � 4'Vatar Level p Approved by: .
m �
�„,$��,a,.�o Ex toration Lo
EAA'TH Project Number Exploration Number Sheet
8CIENCEB�INC KE00851G EB-6 1 of 1
Project Name Campbell Hilf ElementarJ� Ground Surface Elevation(ft) 400'
Location Seattle.WA Datum T��p��nhir.Sitrv�v
Driller/Equipment Gre�ory Drillinq/CME 45C Date StaNFinish 1�l��f��1�/�7/7flnn
Hammer WeighbDrop �140#/30” Hote Diameter('in) �(1^
� m v a a m � in
L� —d � �n BIOWS/FOOt �
a S � ��, °7 '' 3 a�
� T � �� E � o
� `� DESCRIPTION " 3 � �0 2a so ao °
n i vi
S-j Ablatlon Till 7 �12
Medium dense,moist,gray,SILTY fine SAtVD,trdce fine gravel. (SM) s
5 �2 Dense,mast,gray,SIL1Y fine to coarse SAND with gravel. (SM) 9 �
�s
2s
10 S 3 Very stiff,maist,gray SILT,Ifttle fine sand. (ML) 6 �
' � i9
15 Medium dense,mast,
S� `SM) gray,SILTY fine to coarse SAND,littJe fine gravef. 5
12 8
16
Bonom of exploretion baing at 16.5 feet
20
1 �
25
30
35
s
N
�
�
7
C
N
�
�
� Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SPT} � No Recovery M-Moisture Logged by: BWG
c � 3"OD Split Spoon Sampler(D&M) � Ring Sample � Water Level () Approved by: .
0
m r.
assoc,ea-rso Ex [oration La
EARTH Projeci iJumber Expioration Number Sheet
9CiENCE9.lfVC KE00851 G EB-7 1 of t
Project Name G�mDbell Hif( Elementar� Graund Surface Elevation(ft} 397'
Loca6on Seattle.WA Datum TnTna���hir.4rinrP�
' Dn1ledEquipment Gr�,gory Drilfin4/CME 45C DateStart/Fnish _1�/�7/fif1r1�/�7l�nM
Hammer Weight/Drop 140#/30" Haie Diameter(in) ����
c 3i �
� N V � .��. m `� (JS
r,,,, n, nn �m -� y B�OWS/F04t �
a S E � � �a � o d �
� T �' �� DESCRlPTION � � `� �
v � 10 20 30 40 O I
S-1 � W Fiii 2 �4 I
Very loose,very moist,brown,SILTY fine SAND with fine gravel. (SM} 2
5 S_2 Grades fo loose,wet,gray,StLTY fine SAND,little gravel. (SM} 5 �i
s 10
a
Ablation Till I
10 Very dense, mast,gray,SILTY fine to coarse SAND with graveL (SM) t1
� 30 56
26
�� Grades to dense.
S-4 a
iT 8
21
8ottom oE exploradon boring at 16.5 teet
20
25
30
35
0
N
fV
�
�
C
W
�
�
a
�? Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SPn Q No Recovery M-Moisiure Loggad by: BWG
o m 3"OD Splif Spoon Sampler(D 8 M) � Ring Sample � Water Level() Approved by:
mr� .. , .. . —
,��c�,,.�� Ex loration Lo
EARTH Project Number Exp{oration Number Sheet
9CIENCEB�INC KE00851 G EB-8 , 1 of 1
Project Name Campbell Hif( Elementary Ground Surface Elevation(ft) 398'
Location Seaftle.WA Datum TaRngranh;�.,,4i�rvPT
DriiierlEquipment Gregarv•Dri(ling 1 CME 45C Date Start/Finish 1�1�7/(1Q,�����n�n
Hammer Weight/Drop 'f40#/30" � Hole Diameter(n) i(}"
c a� �
� m t� � m � ai
� a o, �d —i y BlowslFoot �-..
o T � �� � �o � m �
DESCRIPTION � � �0 20 3o ao °
w �
S-1 . Fill 2 As
Very bose,very moist to wet,darlc browr�,S1LTY fine SAND,trace wood. �
•, {SM}
Ahlatlon Titl
5 S_2 : Medium dense,moist,mottled brovm,SELTY fine SAND,little gravel. (SM) 7 �
to z
�s
10 S'3 No Recovery. No samples recovered. ProbablyTukwita Fortnation r • soi -
bedrock.
15 S� No Recave . Probable bedrodc.
J 50! '
Boriom of explaraGon boring at�5 feet
20
'
25
30
35
s
N
fV
�
�
C
N
�
�
�? Sampler Type(ST):
o m 2"OD Spfit Spoon Sampier(SP'f') � No Recovery M-Moisture l.ogged by: BWG
o � 3"OD Split Spoon Sampler(D&M) � Ring Sample Q Water Level O Approved by: �
m � ^—� ^---�- r" _
���,c,a,.�� Ex loration Lo
F�A'T1-i Project Number Expiora6on Number Sheet
ac��ces,in�c KE00851 G EB-9 _ 1 af 1
Project Name Campbell Hi!( Elementar� Ground Surface Elevation(ft) 384'
�ocaeon Seattle.WA Datum �n�ra�hir.�L]!A?
' DriliedEquipment Greaarv Drilling!CME 45C Date StartJFnish ����mn�1�l�7/�t1t1Ct
Nammer Weight/Drop 140#/30" Hole Diameter(in) 9�^
� m U � � N � N
r� o, o,� �m —i �n BIOWSIFOOt F
� �
n�'i T � �j� . �i� � o a`�
� �' DESCRIPTION � � m �0 20 3o ao °
rt T il e
S-� �' Fill 6 -13
Medium dense,moist,brown,SILTY fine to coarse SAND,few fine gravel. 7
(SM)
Topsoi{{cuttings)
5 Loose,very moist,daric brown,SILTY fine SAND with little gra�e!and trace 3
S'2 ' WOOd. (S{V�) 3 9
fi
Ablation Til!
10 S_3 Very stiff,moist,tan SiLT,little fine sand. (ML) 5 A
s z3
14
15 S� Grades to hard,gray. 6
12 30
18
Bottom of exploration boring at 16.5 ieet
20
25
30
35
s
0
N
n
c
�
�
�
�? Sampler Type(ST):
o m 2"OD Split Spoon Sampler(SPT) Q No Recovery M-Moishtte Logged by: BWG
o � 3"OD Spllt Spoon Sampler(D 8�M) � Ring Samp{e -� Water Level() Approved by:
m �-, _ . _
,
Attachment D:
Site Plan and Exploration Logs
Sierra Heights ES �
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J
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i.;: i _.?:.� s I. ' .` i ..% � .7.,.�..�. �, i.:� �� I.�..J.. � _�. �.. �. i ,i � � i _j I. . . � � �...1. .i. , , . ' �- . ' . . � .
, , )
.�. � � f I t t _� ' �. f ) �I , -i ; . . . .
. ._ . ._.,.,� . ..:�.. .... ,,�,.,�,.v.r..,.....i.,. .,. _..� _
1 � �� , �
. , , . ,
, , ,
,f ... .
: , � ' , '
, .;...1....,.: _ �.., . � • ; � �
� . . ._ � �-.. � `
�-i. � � .•. . : , :�...
� , ,�, �.-.` l ..+.. • } � , , + �• ,,
' , ; ;,. ,
i . �... .
� �r..1...t. ........1... ... � . . , i, .
r
HAN� EXPLQRATlaN H�LE '�,
NUMBER EH-1 SEDIMENT DESCRIPTION 'I
0
2" Sod.
'
Medium dense, dry, silty, fine to medium sand. (Fill}
6"
Dense, dry to damp, gray, silty, fine to medium sand with some gravel .
(Lodgement Till)
12" �
BOH @ 12"
Note: No seepage; no caving.
NUMBER SEDMAENT DESCF�PTION
0
Subsu�face condftlons depk:tetl represeM os�observatlons at the tMe and location of tfils eupioratory hole,modiied blr geolagic
Irrierpretatbn,engineertng anelysis,and judgment They are not necessarYy representaUve of othef tines and IocatMns. We w�not f
accept reapo�IbNtly far the use or IMerpretatlon by others of informatlon presented on tMs log. '
G93192A 9/93 �
Sierra Heights School
Renton, tJashington
assoc�,aTEa
EARTH
SCtENCES, !NC
EXPL4RATION BORING L4G EB-1
= N = � Z x STANDAF�PENERATtON RESISTANCE
¢ y SEDIMENT DESCRiPT10N a � �H Blows/Foot
W Q
� _ � y �� 10 20 3Q 40
Damp, gray /light brown, fine to
medium sand with some silt. {Fill) � •
S
Damp, gray, silty, fine to medium � 6'�
sand with some gravel. (Lodgement
Till} ���
I
Bax � 9� l�
Note: Na seepage.
'
e conditians d ' ted r sent o�u obsefvatians at tfie tirtee a�location of tF�is ex lorato modif'ied
SubsEs-fae ep�c eP�'e �� P Tl+�, 6'!�9�9�
irrtetpretation,engineering analysis,and judgment They are not necessariy representaiive of other times and locations. We wiB not
accept respons�bility for the use or irtterpretation by otlters af irtformation presented o�ti�+is log. �
G93192A 9/93
Sierra Heights School
Renton, Washington ASSOCIATED
EARTH
SCIENCES, iNC
EXPL4RATION B�RING L4G EB-2
= N � � Z o� STAt�DARD PEt�AAT10N REStSTAhCE
� � SEDIMENT DESCRlPT{ON � g �Q �0���
�
' cZ � � �� t 0 24 30 40
Damp, brown, fine to medium sand ,
with some silt and gravel. (Fill} T
1
5I
Damp, gray, fzne to medium sand 73
with some silt and gravel. (Lodge-
ment Tzll)
I �9
BOH @ 9' IO
Note: No seepage.
5ubsurFace conditiorts depicied represeM our observations at ihe time and location of tt�is expbratory t�ole,modfied by geobgic
interpretatio�,engineering anatysis,and ryd9meM-Th�Y�e nat necessariiy►►epresentative of otfiec times and bcations. We w�not
accept respoos�bi5ty for the use or inierpretation by oibers of infortnation presertted on it�is tog. '
�93192A 9/93
Sierra Heights School
Renton, Washington
a►ssoci�►-rEo
EARTH
SCIENCES, INC
EXPLQRATIDN B4RING L�G EB-3
_ � � � Z¢ STArDARD PEI�AATtON AESISTANCE
Q N SEDIMENT OESCA1PTlON � � �Q �M+slFoot
� � d � �� 10 20 3Q 40
Damp, brown, silty, fine to medium
sand with some gravel. (Fill) � 31
I
Damp, gray, silty, fine to medium 5 T „
sand with some gravel. (Lodgement 1 6
Till)
I 4,�
BOH @ 9` 10
Note: No seepage.
'
Subs�afaoe conditions depicted represent a�r obsefvaGons at the time and location af this exploretory hoie,mod'ified by geobgic
irtterpretation.encpneering analysis,and�dgmeM.They are nat necessanly represetttative of other tunes and locations. We w�l not
accept responsihility for the use ar interpretation by oihers of inPormation prese}�ted'on ihis log. "
G93192A 9/93
Sierra Heights School
Renton, Washington ASSOCIATE D
EARTH
SCfENCES, !NC
EXPLQRATION BORtNG L4G EB-�}
= N � � Z¢ STAN[)ARD PENEfi�4T10N RESJSTANCE
q � SEDIMENT DESCRIPTlON � � Q Q �O���t
Cz a N �� I 0 20 30 4U
�
Damp, gray, silty, fine to cnedium
sand with some gravel. (Lodgement � 78 �,
Till) '
5I5,t
BOH @ 62'
Note: No seepage.
la
5ubsur#ace conc�tions depicted represent aa obsenrations a1 the time and locatian of this exploratory hok,modified 6y geologic 'I
iMerpretation,enguneeting aeralysis,and judgmenL They are not necessarly representative of other times and locatio�s. We w�not �i
accept responsiio8ity far the use or interpretatian by others of informalion presented'on Nsis log. "
G93192A 9/93 �
Sierra Heights School
Renton, Washington ASSOCIATE D
EARTH
SClENCES, INC
EXPL�RATIDf� B�RING LOG �B-�
� y = � Z tC STANDARII PENERATtON RESlSfANCE
Q ' S�DIMENT DESCRlPTION a � �F�- Bbws/Foot
c� � N �� 10 20 30 40
Moist , gray/brown,: fine to medium I
sand. (Fill)
I '
Damp, gray, silty , fine to medium 5 T
sand with some gravel. (Lodgement 1
4"
Till)
��
BOH � 9' ZO
Note: No seepage.
°° = pounding on a rock. No N value
recorded.
,
Subsvrface con�tions depicted represent our observations at tfie time and bcation of lhis expioratory hole,modfed by geoloc,p"c
6iterpretation,en�teetir�g analysis,and judgmeM.They are not rtecessar�y.re�xesentative of other times and locations. We wili not
accept respons�iGty for the use ar interpretation by others of irrformatian presented'an this log.� �
G93192A 9/43
Sierra Heights School
Renton, Washington �ISSOCIATED
EARTH
SCIENCES, t1VC
1
Attachment E:
Site Plan and Exploration Logs
Tiffany Park ES (nearby site)
'� ^�\ \\ .�5 �\
�. _ ��\ � :� �
'! �\\ � �
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,�� ^. _;� �,. �EP-3 � , �
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,� � � � � ��'_�F; . `. ��, APPROXtMATE LOCATiON �'
,� '�, � a �� . . -
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`�'`�, � �-°;���.:�� . ;��� ' i .. ��. � �� TYP -�'"
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, ; �_�, , �.� .,,
� �
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, � � a � � g-�-$-�s �
`V / D .�. \ q 0� ' . ' . '.
� v; '� ; .. _- /�>ir �,• , ,�a, ``�i�ye`�� EP-7 `\ ' •
. r9� � �•\ '�EP-8 � . .
r� $`� 7 yj319 � //;
. ' �
` \\ ����� �.s, . -. � •� '... ._ 1 _ 0 { ". ,v0�� �� 1\ . . ... � . .. . �t\
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1 V�� . . -\ � '9 �` �•fYr.P � . � �a-ea.u•. �- _ . •� \
1 _ `\, . . ._ . . ,\ —_ ;� �`. �Q_ !: � _ . . `—__ __ •-=ry i6�� xo:i�� _ �_ ��
� __ __------'";, r. _ _ -- OEP-10 '�,fi-'� `��- ; �,�,µ;�"_ � ` � \ ;,
1 r�_��`\ \ `� .°p'\ .° ` 1�"`_ RR.Q p��.
W '_� , i \` . � � . .. � \ � I� ��.
\ \ ' � '_ �t'�
. g�• �
9 `l ' �\ � ���pi2 �j�j� _'__'__________�_'� 1_
. 1 � � ����t�'i _� -�--�-___�_ ___'_ �__.�
.+ 1 \ _ r� - _ �- �
y ` � __ ->_ aA�yva.e `__- -_ '�-
i
M _ --rJ'` �� �-_- ' ``���
0
' Q 75 150
n
a
a FEEF
� REFERENCE: AHBL
,� — - - - -- —
� Associated EarEh Sciences,Inc. S1TE AND EXPLORATION PLAN FIGURE 2
�
� � TIFFANY PARK SITE DATE 9/12
N �1J �• � � �
N s- #., RENTON, WASHINGTON PROJ.NO. KE12�359A
LOG OF EXPLORATtON PIT N0. EP-1
�
` This log is part of the report prepared by Associated Earth Sciences, Inc.(AESI)for the named project and should be
Y read together with that repori for complete interpretation.This summary applies only to the loca6on of this trench at the
� time of excavation.Subsurface conditions may change at this location wdh the passage of time.The data presented are
� a simplfication of actual oonditans encountered.
DESCRIPTION
Topsoil �
1 �'
Weathered Vashon Lodgement Till ',
2 Medium dense, moist, mattled gray and brown, fine to coarse SAND, with silt, litt(e fine to coarse
gravel; no stratification or structure (SM).
3 I�
4 �
5
Vashon Lodgement Till 1 Vashon Advance Outwash Transitional Sediments
' 6 Dense, moist, brown, fine to coarse SAND, with fine to coarse gravel,few silt; no stratification (SW).
7
8
9 Very dense, moist, mottied gray,fine to coarse SAND, with siit, littie fine to coarse gravel; no
stratification or structure (SM).
10
i ��
i Bottom of exploration pit at depth 10.5 feet
No seepage. No caving.
i, 12
13
! 14
� 15
i
� 16
17
18
19
� .,� - -- -
o - -
N
m
a Tiffany Park Site
E
� Renton, WA
�
�
m Associated Ear�h Sciences, Inc. pro ec#No. KE12Q359A
� Logged by: BWG �
� APProved by: y '� ���,f , {r- ���_ 9/6/12
1 i i'� �:-.- �.
LOG OF EXPLORATION PIT NO. EP-2
" This log is part of the report prepared by Associated Earth Sciences,Inc.(AESi)for the named project and should be
� read iogether wiih that repor�for complete interprelation.This summary app�ies oNy to the locafion of this irench at the
� iime of excavation. Subsurface conditions may change at this location with the passage of time.The data presented are
o a simplfication of actual conditions encountered.
DESCRIPTIOfV
Topsoil
i Weathered Vashon Lodgement Till
2 Medium dense, moist, light brown,fine SAND, with silt,few fine gravel; no stratification or structure
(SM).
3
4 Vashon Lodgement Titt/Vashon Actvance Outwash Transition Sediments
5 Dense grading to very dense, very moist, mottled gray grading to gray, fine to coarse SAND, with
silt, little fine gravel (SM); pockets of gray,fine to medium SAND, few silt(SP).
6 ,
7 � '
8
9 I
10
11 Bottom of exploration pit at depth i0.5 feet
No�epage. No caving.
12
13 1
,
14
15
16 �
i.
17 f
�
i8 !
l
19
N nn
a- - -- - ---- -
N
W
a Tiffany Park Site
E
N Renton, WA
�
a
� Logged by: 8WG Associated Earth Sciences, Inc. Project No. KE120359A
= � a -�- � �
d
Approved by: � '�" � 9/6/12
LOG OF EKPLORATION P{T NO. EP-3
� This log is part of the report prepared by Associated Earth Sciences, Inc.(AES!)for the named project and should be
-� read Eogether with that report for compiete interpretation.This summary applies only to the locaiion of this trench at the
� time of excavafion.Subsurface conditions may change at this location with the passage of time.The data presented are
o a simplfication of actual conditions enco�tered.
DESCRIPTION
Topsoil
1
Weathered Vashon Lodgement Til!
2 Medium dense, moist, light brown, fine SAND,with siit,few fine gravel; no stratffication or structure
(SM).
3
Vashon Lodgement Til!
4 Dense grading to very dense,very moist, gray, fine to coarse SAND, with silt, few fine gravel; no
stratification or structure (SM).
5
i
6
7
8
9
10
Bottom of exploration pif at depth l0 feet
� 11 No seepage. No caving.
12
13
14
15
I ,6
�
;
17
i 18
N
� j9
O GV
N
� II
a Tiffany Park Site I
�
� Renton, WA
'e '
N Associated Earth Sciences,Inc.
o Logged by: BWG Project No. KE12�359A
a � � �-c- �-'`-ir- _.. ��i� ���
�, Approved by: � �'' '" 9/6/12 I
LOG OF EXPLORATION PIT NO. EP-4
" This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be
� read together w'ith ihat report for compfete interpretation.This summary applies only to the location oi this trench at the
� time of excavation.Subsurface conditions may change at this location with the passage of time.The data presented are '
o a simp(fication of actual conditions encountered. f,'
DESCRIPTION
Topsoit
1
Weathered Vashon Lodgement Till
2 Medium dense, moist, reddish brown, fine to medium SAND, with silt, few fine gravel; no
stratification or structure (SM).
3
4 Vashon Lodgement Till
Dense grading to�ery dense, moist, gray,fine to coarse SAND,with silt, few fine gravef; no
5 stratification or structure (SM). i
�
6
7
8
9
I
10 �
1� Bottom of exploration pit at depth 10.5 feet
No seepage. No ca�ing.
12
13
14 �
15
16
17
i
18 I
19
N nn
0
N
�
a Tiffany Park Site
�
� Renton, WA
�
a
� Associated Earth Sciences Inc.
�
o Logged by: BWG ' Project No. KE120359A
a tiPP�oved by: �?�` n ��`�t�'.� : �r" �F'�: :;7 9�6��'1
LOG OF EXPLQRATION PIT NQ. EP-5
� = I This log is part of the report prepared by Associated Earth Sciences,inc.(AESI)for the named project and should be
� t � read together with that report for complete interpretation.This summary applies only to the location of this trench at the
m time of exoavation.Subsurface condi6ons may change at this location with the passage of time.The data presented are
i o a simpification of actual conditions encountered.
i
DESCRIP'fION
I
Topsail
1
E 2 Weathered Vashon Lodgement Tii!
Medium dense, moist, mottled brown,fine to medium SAND, with silt, few fine grave(; no
I 3 stratification or structure (SM).
i
4 Vashon Lodgement Till
Dense grading to very dense, very moist, mottfed gray,fine to coarse SAND, with silt (SM).
� 5
�
I 6
i
7
8
i
� 9
10
11 gottom of exploration pii at depth 10.5 feet
No seepage. No caving.
12
,
' 13
�
� 14
i
i 15
E
!
� 16
17
18
� 19
i
N�
nn
a GV
c�
m
D Tiffany Park Site
E
� Renton, WA
�
a
" Associated Earth Sciences Inc. pro ect No. KE120359A
m Logged by: BWG � 1
T �,�,..,'r� q....
A roved b `-� �' t� „r�:�T�,I � 9/6/12
� PP Y� "�_'
LOG OF EXPLORATION PIT NO. EP-6
� This log is paR of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be
� read together w'tth that repor�fw complete interpretation.This summary applfes only to the location of this trench at the
� time of excavation.Subsurface conditions may change at ihis iocation with the passage of time.The data presented are
o a simpification of actual conditions encountered.
DESCRIPTION
Topsoil
1
Weathered Vashon Lodgement Till '
2 Medium dense, moist, mottfed brown, fine to coarse SAND,with siit, little fine to coarse gravei; no +
stratification or structure (SM}.
3 ;
Vashon Lodgement Till
4 Dense grading to very dense, very moist to wet, mottled gray grading to gray, fine to coarse SAND, �
with silt, little fine to coarse gravel; no stratification or structure {SM).
5
s �
7
8
9
10
Boftom of exploration pit at depth 10 feet
11 Weak seepage zones below 8 feet No caving.
12
i
13 I
14
15 �
16 �
17
1g �
19
N ryn I
o L
N
�
D Tiffany Park Site
E
�, Renton, WA
�
a
" Associated EarEh Sciences, Inc. � �,,_-
N
o Logged by: BWG Pro;ect ��Jo. KE12J����a�u
� APProved 6�: '� � 3� ��`uz .k=�`= � 9/6r
d
LOG OF EXPLORATI4N PIT NO. EP-7
! � I This iog is part of the report prepared by Associated Earth 5ciences,Inc.(AESI)for the named project and should be
; r read together w'ith that report for crom�lete interpretation.This summary applies only to the location of this trench at the
'• m time of excavation,Subsur�ace conditions may change at this laca4on with the passage of time.The data presented are
i a a simpliication of actual conditions encountered.
DESCRIPTION
- i Topsoil
;
, �
� Weathered Vashon Lodgement Till
2 Medium dense, moist, light brown,fiine SAND, with silt, few fine gravel; no stratification or structure
(SM).
3
4 Vashon Ladgement Titl
Dense grading to very dense, very moist, mottled gray grading to gray, fine to coarse SAND, with
I 5 silt, Eittfe fine gravel, trace coarse gravel and cobbles, one boulder; no stratification or structure
� 6 (SM).
7
8
I g
i
10
Bottom of exploration pit at depth 10 feet
11 No seepage. No caving.
12
I 13
i
I 14
i5
!
16
17
i8
19 �
N ^n
O
N
�
9 Tiffany Park Site
�
N Renton, WA
�
" Associated Earth Sciences Inc. pro ect No. KE120359A
o Logged by: BWG �-. � �
� A roved b�: �"�� "� � ���w
� PP 5 � -- �;y� �� � 9/6/12
L
LOG OF EXPLORATiON PIT NO. EP-8
" This log is part of the report prepared by Associated Earth Sciences,Inc. (AESI)#or the named project and should be �
w read together with that repori for complete interpretation.This summary applies oNy to the location of this trench at the
� time of excavation.Subsurface condifions may change at this location with the passage of time.The data presented are
o a simplfication of actual condiiians encounlered.
DESCRIPTION
i Topsoii
1 i
Weathered Vashon Lodgement Tiil
2 Medium dense, very moist, reddish brown,fine to medium SAND, with silt, few fine to coarse gravel;
no stratification or structure (SM).
3
4 Vashon Lodgement Tiil
5 Dense grading to very dense, very moist, mottled gray, fine to coarse SAND,with silt, little fine to
coarse gravel, trace cobbles; no stratification or structure (SM).
6
7
8
9
10
Bottom of expioration pR at depth 10 feet
11 No seepage. No caving.
12
13 i �
14 ''
15
16
17
18
19
N /1A _
p _ __-- _ ___
N
m
� Tiffany Park Si#e
E
� Renton, WA
�
a
" Associated Earth Sciences Inc. pro sct No. KE120359
o Logged by: BWG � 1
� APProved by: � 3 � �. T, � 9/6/`.
s.s:> _��
LOG OF EXPLORATI4N PIT NO. EP-9
� This log is part ot the report prepared by Associated Earth Sciences, Ina(AESI)for the named project and should be '
� read together with ihat repori for complete interpretation.This summary applies only to the location of this trench at the
� time of excavation.Subsurface conditions may change at this location with the passage of time.The data presented are
o a simpliication of actual conditions encountered.
DESCRIPTION
Topsoil
1
2 Weathered Vashon Lodgement Till
r ' Medium dense, moist, mottled brown, fine to medium SAND, with silt; no stratification or structure
3 {SM).
�' Vashon Lodgement Till �
� Dense grading to very dense,very moist, mott{ed gray,fine to coarse SAND,with silt, little fine fo
i �
coarse gravel, frace cobbles and boulders; no stratification or strucfure (SM).
� �
� 6
� ;� 7
8
I � �
9
I
Bottom of exploration pit at depth 9 feet
1 a No seepage. No caving.
11
12
13
14
15
1fi
17
18
19
N ^n
o G V
N
W
� Tiffany Park Site
E
�, Renton, WA
�
a
" Associated Earth Sciences Tnc. Pro ect No. KE120359A
� Logged by: BWG ` 1
a ����-... �� s�'�`�` .�'��r� �
Approved by: �� 9�sf 12
LOG OF EXPLORATION PIT NO. EP-10
� This log is part of the report preparecf by Associated Earth Sciences,inc.(AESI}for the named project and should be
� reaci together wtth that report for complete interpretation.This summary applies only to the locafion of this trench at the
� time of excavat�on.Subsurface condit-ions may change at this location with the passage of time.The data presented are
o a simp)fication of actual conditions encountered.
DESCRlPTION
Topsoil
1
2 Weathered Vashon Lodgement Till
Medium dense, moist, light brawn, fine SAND,with siit, trace fine gravel; no strati#ication or structure
3 �SM).
4 Vashon Lodgement Tii!
5 Dense grading to very dense, moist, mottled gray,fine to coarse SAND, with silt, few�ine to coarse
gravel; no stratification or structure (SM).
6
7
S
Bottom of exploration pit at depth 8 feet
9 No seepage. No caving.
10
11
12 i
13 �
14
15
i
` 16
17 '
�
1$ �
19
�
ti__��
s
�
�
D Tiffany Park Site
E
� Renton, WA
�
�
a
� Associated Earth Sciences, Inc. pro ect No. KE120359A
a Logged by: BWG �
N .-.+.y _.-. � -T'� ':�~�� �
;� Approved by: :.�- .�. r g�g�12
LOG OF EXPLORATION PIT NO. EP-11
� �
� This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be �
� read together with that report for complete interpretation.This summary appties onfy to the location of this trench at the � '
� time of excavation.Subsurface conditions may charge at this location with the passage of time.The data presented are
o a simpification of actuai conditions encountered.
DESCRIPTION
Topsoil
I �
� Weathered Vashon Lodgement Till
; 2 Medium dense, moist, light brown, fine SAND, with sift,trace fine gravel; no stratification or structure
� (SM).
� 3
I
� 4
� Vashon Lodgement Till
5 Dense grading to very dense,very moist, mottled gray,fine ta medium SAND, with sift, few fine to
caarse gravel, trace cobbles; no stratification or structure (SM).
6
7
8
9 Bottom of exploration pit at depth 8.5 feet
No seepage. No caving.
10
11
12
13
i 14
15
I 16
I
I �7
� 18
19
�` ��
��
ni
m
D Tiffany Park Site
E
� Renton, WA
�
a
" Associated Earth Sciences Inc. p�o ect No. KE120359A
o �o99ed by: BWG ' 1
a � � ��� ;c-�� J� �
Approved by: -�� �� �. . �._ 9J6/12
�
LOG OF EXPLORATION PIT NO. EP-12
` This log is part of the report prepared by Associated Earth Sciences,inc. (AESI)for the named project and should be
L read together with that repor�for complete interpretation.This summary applies only to the location of this trench at the
m time of excavation.Subsurface conditEons may change at this location w'ith the passage of time.The data presented are
o a simplfication of actual conditions encountered.
DESCRIPTION
Topsoil
1
Weathered Vashon Lodgement Til(
2 Medium dense, moist, light brown, fine SAND,with siit, trace fine gravel; no stratification or structure
(SM).
3
4 Vashon Lodgement Till
Dense grading to very dense, moist, mottled brown and gray grading to gray, fine to coarse SAND,
with siit, few fine gravel; no stratification or structure (SM).
5
6
�
7 �
8
I
g �
i
10
i
Bottom of explorati�pit at depth 10 feet '
11 No seepage. No caving. '�
�
12 '
�
�
13
i
14 ;
i
15 �i
16
17
�$ i
19
N `S/1 _
N—L� __ -- — _ _ - — _ _
m
a Tiffany Park Site
E
y Renton, WA
�
a
� Associated Earth Sciences, Inc. Pro ect No. KE120359A
o Logged by: BWG �
� -� � � � �
� APProved by: _-s-�- �, r,. ,�. ..
F � �--: ,c•. �� 9/6/12
Attachment F:
Site Plan and Exploration Logs
Taibot Hill ES ,
,__
�
, ;
i
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:��
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,
.\ I 1 � 1 / �r A , ' 1
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� � � .. � i ; ` �L' ' � I
�` � ��ti\ � 4AFq � I
�� 1'. �� - �\ � '� �EB-14` �F,�.� EB-12 � i i
�
.
� � , �� g.ys�s�ti � , �
\ � �
- .
, .
, � �, �o �o�� ,,- �
, , �, '�, � tia t � '
. , `'
�� ,
� � � .� .
- � ,
�� ' � �� ' EB-10
�, � � �, � , r ` s
. ,, � -, , ..� �
. , � �
. � � \ � '`
. � � �
� , � , , i
. � � , � �'
---- ' - ' -
�
o � W � � �'� o���y�.
0 o a a o
o � �.
PJ
LfiG�!d� �
E,B-'� � Approxlmete toratlan of expioratlon baring
FIGURE 1: SITE AND EXPLORATIOPt PIL�
TALBOT HILL ELEMENTARY
SCH04L RENOVATION
RENTON, WASHINGTON
NORTH PROJECT IdO. G9fi09514
0
�o0 20o MAY 1996
� - � --------�
SCALE IN FEET AS'SOCIA'TEC�
E�►R"�'1�11
REFERENCE: T.C.A.INC.SUFaVEYOFiS-ENGINEERS-DEVELOPMENT CONSUI.TANTS''TALBQT HtLL S C 1 E N G E a, I IV�
ELEMENTARY TOPOGRAPWIC SURVEY",DATED 10/23�95.
_ EXPL�RATI�N B�RfNG LQG
Number EB-1
= W z� STANDARD PENETRATION
F- -� �w RESISTANCE
SEDIMENT DESCRIPTI�N �- °' O Q
WQ � �� BlovrsiFoot
� �
(Moislure
contenG;�) 10 20 30 40
�,
Moist, gray-brown, silty SAND with gravel and
occasional cobbles. (Fill}
35
I - .
5 '-�
------------------------------------------------------------------------------- �
Moist, brown and gray, weathered SANDSTONE/
SILTSTONE. (Bedrock}
I 50/4" f�
10 � 1 � �
50/5"
BOH @ 10-1/2'
Note: Bedding plane approximately 45 degrees to -
horizontal.
15
20 �'I
25
�
3d
Subsurtace condiGons depicted represent our observafions at the time and location of this e�bratory hole,modfied by geologic
fnfetpretations,engineering anatysis,and judgmeni. They a2 not necessariry rep2sentative of other llmes and locations. We mn'll not
accept responsibility for the use or interpretation by others of it�formation presented on this log. RQVIBW@CI BY ,s{��
Associated Earth Sciences, Inc. Tafbot Hifl Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkfand, Washington 98033 Renton, Washing�on
Phone: 206-827-7701 Project No. G9fi095A
- _ ' � •■ JAAA
EXPLORATION BORING LOG
Number EB-2
� � STANDARD PENETRATfON
SEDIMENT DESCRiPTION ~ i �F' RESISTANCE
oQ � � emws�oot
� �
(Moisture
content,%) 10 20 30 40 � �
�
Moist, 6rown, silty SAND with gravel. (Fill)
-------------------------------------------------------------------------------
I
Moist, gray, sandy SILT with occasional wood debris; T ♦4 � -:F
hydrocarbon odor. (Fill) 5 1 ` J
-------------------------------------------------------------------------------
Moisf, green-gray, silty SAND with occasional gravel. �p 1 <�':
cF�ii, _ T �o
!
-------------------------------------------------------------------------- 50I5" '
Moist, gray and brawn, weatheretl SANDSTONEI I
I LTST NE. Bedrock �� S 50/6" f `
BOH @ 15-112'
Note: Bedding plane approximately 60 degrees to
harizontal.
E
20
25 �
30
Subsurface cond�8ans depicted represent our observafions at the time and location of this expioratory hole,modfied by geologic
interpreta�ons,engineering analysis,and judgment They are not necessarily representative of otl�er Umes and locatians. We will no;
accept responsbil'ity for the use or irAerpsetafion by others of information presented on this tog. ReVI@W2CI B}I s�7
Associated Earth Sciences, Inc. Talbo# Hill Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Ren#on, Washington
Phone: 206-827-7701 Project No. G96095A
. .. ...,...
EXPL4RATION BORING L�G
Number EB-3
0 � STANDARD PENETRATION
F-=- � � � RESISTANCE
SEDIMENT DESCRIPTION W � O�, � B�owS�Foot
� � �
crAoxt��e
conteM,k) 10 20 30 40
.��,
�-� Moist, gray, sandy GRAVEL with cobbles and trace
� silt�..(Fill)-..........-�--�- � -�-�- ___. . .-� ' - ---"�:••
Moist, red-brown, silty SAND/weathered SANDSTONE. 11
�
5 l �..
Moist, red-brown and gray, silty SAND/weathered �� T 19� ;
SANDSTONE. (Bedrock} 1 50/0" '
_
BOH @ 11-1/2'
15 ' -
20
_ _ _ _
25
30
Subsurtace condllions depicted represent our observations at the time aod location of this explorabry hole,modified by gealogic
intetp2ta6ons,engineering anatysis,and judgment They are not necessarily representative of other times and bcations. We will not
accept 2spons�iti(y for the use or In�e�preWtion 6y others of infumiatio�presented on this bg. R2VI@W@C) By �
Associated Earth Sciences, lnc. Talbot Hili Elementary
911 Fifth Avenue, Suite '100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Ph�ne: 206-827-7701 Project No. G96095A
� •• IAAA
EXPL4RATi4N BORING LOG
Number EB-4
W Z� STANDARD PENETRATION
� —> >W RESISTANCE
SEDfMEiVT DESCRIPTION o- °- o Q
wQ Q �� 6�ow5�Fooc
� �
(Mbisture
content,y} i0 20 30 40
?ys
Moist, gray-brown, sandy SILT with occasional gravel. T
(Fill)
-------------------------------------------------------------------------------
Moist, gray-brown, sandy SILT with occasional gravel.
(Lodgement Till) T 73
� l � ; ti.�
Moisf, yellow-brown, silty SAND. (Weathered Sandstone)
@ 8' moist, yellow-brown and gray, weathered
NDST NE. Bedrock � 50/4"
BOH @ 8'
Note: Bedding plane approximately 45 degrees to
horizontal. �� '"�
15
20
2� '
30
Su6surface conditims depicted represent our observations at the time and location of this exploratory hde,modfied by geologic
interpretaUons,engineering analysis,and judgfner�t. They are not necessarily represe►�tative of olher times and locations. We will not
accept responsibifily for the use or inlerpretation by others of infortnaUon presented on this log. R@VI@W@CI By %s
Associated Earth Sciences, Inc. Talbot Hill Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
PhnnP� 2�6-827-7701 Project No. G96095A
EXPLORATION B�RING LOG
Number EB-5
= W Z �C STANDARD PENETRATION
F- � � w RESISTANCE
SEDIMENT DESCRIPTION n- a o Q
WD ¢ � � BlowslFoot
� �
{Mouture
Con!ent,^�} �4 Zp 3Q 4Q
_-Z`,,;
Moist, gray-brown, silty SAND with gravel. (Fill)
I
-------------------------------------------------------------------------------
Wet, gray-brown, fine to coa�se SAND with gravel and
some silt. (Fill) � � 63 �� �
r- -- �,�
Moist, gray, weathered SILTSTONE with stringers of
coal. �Bedrock)
= 5014"
10
BOH @ 1 Q'
15
20
_ i
25 ;
3�
Subsurface conditions depicted tepresent our abserva6ons at the 6me and location of this explordtory fiole,modified by gealogic
interpretafions,engineering anatysis,and judgment. They are not necessanly re.presentaBve of other times and locadons. We wiA not
accept respons�bifity fur the use or(nterpreta2ion by others of ir�formatlon presented on ihts tag. R2VI2W2CI By Tj�
Associated Earth Sciences, Inc. Talbot Hill Elementary
91'I Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phnne: 206-827-7701 Project No. G96095A
EXPLORATIUN BORING LOG
Number EB-6
= W Z � STANDARD PENETRATION
SEDIMENT DESCRIPTION � i � Q RESISTANCE
W � � � BlowslFoot
� � (a
(Moisiure
Content,�6) 10 20 30 40
Moist, gray-brown, sandy SILT. (Fill) _
Wet, gray-brown, graveliy SAND with some silt. (Fill) f
I t�7.2, 2�
5 -{
Moist, red-brown to light brown, weathered SILTSTO�IE/
SANDSTONE. (Bedrock)
= 50/1"
BOH @ 9-1/2' 1Q -'"
15
Za
25 '
30
Subsurface condit�ans depicted represent our obsecva6or6 at the dme and locaiion of this expbratory hde,mod'fied by geologic
interpretations,engineering analysis,and Judgmerrt. They are rwt necessarily represerdative of ather 8mes and locations. We vnll not
accept responsibility for ffie use or irderpretation by others of infortnation presented on this log. RBVIBW2{� By �
Associated Earth Sciences, lnc. Talbot Hilf Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phone: 206-827-7741 Project No. G96095A
- - � - � - - �. ..,.,,.
EXPLORATION BORING LOG
Number EB-7
= W Z� STANDARD PENETRATION
F- -� �W RE5ISTANCE
SEDIMENT DESCRIPTION Q ¢ �� s�owsrFoot
� �
�nno�5w�e
Contenk'/o) 1fl 20 3� 40
•r
Moist, gray-brown SILT. (Fi11)
Z
Moist, green-gray and brown, sandy SILTwith sorne ��
organics. (Fii1) 5 I r��
♦
22 i
Moist, brown and red-brown, sandy SILT. �� 1 � G
(Lodgement Tiil) -
-------------------------------------------------------------------------------
Dry, black, thinly laminated (1/16") COAL WITHIN
S1 LTSTONE. �5 T 50 J ;,_
No recovery. (Biack dust on sampfer} (Bedrock) 1 ��5-
I ��2,�
BOH @ 16-1/2'
2�
25
30
Subsurface cordiNons depided represent our observatioru at the Y�ne and IocaSon of ihis exploratory hde,modified by geologic
interpretations,engineering analysis,and judgment, They are not necessanTy representative af olher Bmes and bcaHons. We w�l not
accepi responsi6ilily far the use or inte�pretat(on by others af i�ortnation presented on lhis log. R@VI@WeCI By �jl/
Associated Earth Sciences, Inc. Talbot Hill Elementary
9'11 Fifth Avenue, Suite 100 School Renovatians
Kirkland, Washington 98033 Renton, Washington
Phone: 206-827-7701 Projec# No. G96095A
EXPLC)RATION BORI NG LOG
Number EB-8
� ao� STANDARD PENETRATION
=� RESISTANCE
SEDIMENT DESCRIPTION Q � �� eioW�Foot
�MoiS���e
content,�) 10 20 30 40
Moist, yellow-brown SILT. (Fili)
I
Moist, gray-brown, gravelly SAND with some siit. (Fi(I)
I 4$
5 (15.7) ♦
Moist, light gray, weathered SANDSTONE/SILTSTONE. 50/5"
(Bedrock}
I
BON @ 8'
10
15
20
25
30
Subsurface conditions depicted rep2sent our observa6ons at the tane and location of this expbretory hole,modified by geologic
1Merpretatlons,engineering analysis,and judgment They are not necessarily rep2sentative of other times and IocaGons. We will not
accept responsibifily for the use ot Interpretation hy ofhers of information preseMed on thts log. RgVIeW� By Tj'l
Associated Earth Sciences, Inc. Talbot Hill Elementary
9�i 1 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phone: 2�6-827-7701 Project No. G9G095A
� �■ lAAA
EXPLORATION BORING L�G
Number EB-9
= w Z� STANDARD PENETRAT[ON
F— —> >w RESISTANCE
SEDIMENT DESCRIPTION Q Q �� etows�Foot
� �
(Masture
Cornent,�} 10 20 30 4�
Moist, dark brown, silty SAND with gravel and pieces of =
asphalt. (Fill} —
Moist, brown, sandy SILT with wood and charcaal pieces. T 8�
(Fill) 5 1
-------------------------------------------------------------------------------
Moist, brown-gray, sandy SILT. (Lodgement Till) 25
,o
I �
Moist, red-brown, silty SAND.
Red-brown, weathered SANDSTONE.
5013"
_
BON @ 14-1i2' �5
20
__ .
. .
25
30
Su6surface conditions depicted represerrt onr observations at the time and txation of this exploretory hde,modfied by gedogfc
hrterprelations,engineering analysis,and judgment They are not necessarAy represe�rtative of other times and locations. We v+il not
accept responsi6il'dy for the use or fiterpretation by others M infartnation preserrted on this log. RBVIeWOd By T.j%�'J
Associated Earth Sciences, Inc. Talbot Hill Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Dhnna• 7(1F�i_R��-7701 Project No. G96095A
_
EXPLORATION BORING LOG
Number EB-10
�� STANDARD PENETRATiON
� � �W RESISTANCE
SEDIMEiVT DESCRIPTION � °' o¢
w � �� eiowS�Foot
� � �
(Moisture
Content,%) 10 20 30 40
(i'opsoi.�.._...._. _.
Wet, brown, sandy SILT.
Moist, gray-brown and red-brown, silty SAND. � WD i .13
(Weathered Bedrock) � �21 2�
Saturated, very soft zone from 5-1/2' to 6'. 50/5
= 1/2"
BOH @ 7'
WD = while drilling 10
i
�
15
20 —
25
30
Subsurface condifions depicted represent our observa6ons at the time and IocaHon of Ihts exploratory hole,modified by geologfc
inEerpretaUons,engineering analysis,and judgment. They are nd necessan'ly 2presentative of other 6mes and locatiar�s. We will not
accept respons�b{fty for the use or intetpretation by others of infartnatim preseMed on this log. R@VI@WECI BY �j�h'J
Associated Earth Sciences, inc. Tatbot Hill Elementary
911 Fifth Avenue, Suite 100 Schoot Renovations
Kirkland, Washington 98033 Renton, Washington
Phone: 206-827-7701 Project No. G96095A
EXPL4RATION BORING L�G
Number EB-11
= W z� STANOARD PENETRATION
�– a �� RESISTANCE
SEDIMENT DESCRIPTION Q Q �� B�ows�oot
� �
crno�s���e
Content,��) 10 20 30 40
._..apsoi l..__.._._._._...._--�--._..._._.._......__...__._....____..._.................._.__...__............_.....
VVet, gray-brown, sancfy SILT. (Fill)
Moist, light gray, weathered SANDSTONEISILTSTONE. �» 6
Bedrock I � 50l5
BOH@3' 1l2"
Note: Seepage into boring at 1-1/2'.
5
10
15
20
— 25
30
SubsurFace conditions depicted represent our obserrations at the time and loqtion of this exploratary hole,modfied by geologic
interp2tations,engineering analysis,and judgment. They are not necessanly representative ot other times and IocaUons. We will not
accepl responsibflitty for the use or interpreta6on by others of infirtnation presented on this log. RBVI@W@d By TS
Associated Earth Sciences, Inc. Talbot Hill Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phone: 206-827-7701 Project No. G96095A
. _ _.. ..,.,..
EXPLORATI�N BORING L�G
Numbec EB-12
= W z W STANDARD PENETRATION
a a O¢ RESISTANCE
SEDIMENT DESCRfPT[ON Q � �� BiowSiF�t
� �
crh�isture
Content,ss� 10 20 30 40
_�_opsoi)--------------------------------------------------------------------
I (23.1)
Wet, gray-brown, sandy SILT. (Fill) �
WD
------------------------------------------------------------------------------- 50/5
Moist, red-brown and gray-brown, weathered T 1/2"
SANDSTONE/SILTSTONE. (Bedrock) 5 1
BON @ 5-112'
1Q
15
— 20
25 '
30
Subsurface condRions depicted represent our observatians at the time and location of this exploratory hote,modified by geologic
iMerpreta6ons,engineering analysis,and judgment. They are not necessariry reptesentadve of other Yrtnes ard locations. We wiA not
accept iesponsibility for the use or fnterpretation by others of iMortnation presented on this log. (�eVl@W2f� By T.s/�J
Associated Earth Sciences, Inc. Talbot Hiil Elementary
911 Fifth Avenue, Suite 100 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phone: 206-827-7701 Project No. G9fi�95A
- w �_:� ann�
_ _..___ . _ __. __ _ _ _ __
_ _ _
EXPLORATI4N BORING L�G
Number EB-13
� � STANDARD PENETRATION
t-=- � � �-W- RESISTANCE
SEDIMENT DESCRIPTION °-
o ¢ �� eioWs��t
� �
c�m5���
Content,�) 10 2� 30 40
_ _opsoi
-------------------------------------------------------------------- i
Moist, brown, sifty SAND with some gravel. (Fil!)
-------------------------------------------------------------------------------
Moist, gray-brown and red-brown, sandy SiLT with
some gravel. (Lodgement Till) 5014"
5 T
BOH @ 5'
10
15
2a
__ _ _ �
_ _ ,
25 I
30 '
Su6surtace c�diQons depicted reptesent our obsetvations at the time and locatbn of this exploratory hofe,modified by geologic
interpretaUons,engineeting anaEysis,and judgment. They are not necessarity representative of olher times and locations. We witl not
accept responsbility f�the use or intetpretation by others of intormation prese�ted on this tog. R2Vf2W@CI By Tj�%1�f
Assaciated Earth Sciences, (nc. Talbot Hill Elementary
911 Fifth Avenue, Suite 100 School Renovations I
Kirk(and, Washington 98033 Renton, Washington I
Phone: 206-827-7701 Project No. G96095A I
� ■ �www
EXPL�RATION B�RING LQG
Numbec EB-14
� � STANDARD PENETRATION
I=— � �� RESISTANCE
SEDIMENT DESCRIPTION o- °- O ¢
o Q �� eiowS�Faot
� �
(Moisture
Conlent,°�) 10 20 30 40
--�-�SO�-=-------------------------------------------------------------
Moist, gray-brown, silty SAND and sandy SILT with
pieces of gray sandstone/siltstone. (Fill)
15
5
1 (16.0) �
--------------------------------------------------------------------------------
14
Moist, gray and gray-brown, sandy SILT. (Lodgement T {18.5) �
Till) 10 1
I 5016"
BOH@14' _ ��
20
25 '
30
SubsurFace condiBons depided represent our observations at the fane�d bcation of this e�loratory hole,modified by geologic
inlerpreta6ons,engineering analysis,and judgment. They are not necess�1y representative of other times and locations. We vrtll not
accept responsibtlity for the use or interpretation by others of informai�on presented m this log. R@VI@W@t� By �„S/f
Associated Earth Sciences, lnc. Talbot Hill Elemen#ary
911 Fifth Avenue, Suite 1�0 School Renovations
Kirkland, Washington 98033 Renton, Washington
Phone; 206-827-77�1 Project No. G96095A
Attachment G:
Site Plan and Exploration Logs
Lakeridge ES
w �
s a
0
� \
\ \
\
\ \
\ �
\ �
360 - - - - - - - -' - - - - - - - - - - - - - - - l -� \ \
\ �
\ � �
�
� \ �
�` � \
. EB-2 EB-3 �� � � No�rt�
� �
� - -� 1 `
EB-1� �, � ��
I EB-4 �! �� \� �
L �_� � , �
COVERED PLAY �
STRUCTUF�, `�o
�
' �
�
. � �
� �
� �
� �
� �
� �
� �
SOUTH � SCHOOL BUILDING ' �
— T i 5TH — -`'' � `
STREET �� �
� `
� �
. � ��,
�
a
�
�
l
\
�
�
, . . . \ /
w
°'o
LEGEPIQ
EB-4 � ApproxNnete locadon of exploratbn bortng
0 80 160
�
Scale In Feef
LAKERIDGE ELEMENTARY SCHOOL A880CIATED
7400 SOUTH 115TH STREET EAATH
RENTON, WASHINGTON 8 C 1 E N C E�, f N C
9104-21 G April 1991 Figure 2
EXPLORATION B4RING LOG EB-1A
s � _ � z� STANDARD PENERATtON REStSTANCE ::
Q � SEDIMEl�1T DESCRIPTION a~. � �H Bb++vs/Foot
o a
c7 N �� lU 2Q 30 4Q
4" To so'
Moist, brown, grey, tan and black,
mottled, oxidized, organic, silty
sand to sandy silt. (Fill} T ♦
S �
I •
Wet, brown and grey, mottled, 10
silty sand with gravels, (Fill) I '�
Rock in driveshoe at sample S��'�
interval 10-11�. F
— — 15 — �
iZoist, brown-grep, slightlp oxicliz � �� �
ed, silty, fine to coarse sand taith
gravels. (Lodgement Till} 5t
BO�I 16�
�ZO
B = sampler bouncing on roc!c
4ID = While drilling
�� Samples taken using a Dames & '
P400re Sampler wi:th a 300 lb hammer.
SPT blow counts-_ �aere converted
fror� the Dames & Moore blow counts.
Subsurface condtians depicted represent our obaerrationa at the time and location of thia expbratary hde,modrfied bY 9�b9�
irtterpretation,er�ineering anaFysis, and judgrnent They are not necess�ar�7y represeatative of athef tbnes and locatioe�a We w�not
accept resporssibe�ty for!he use or irrierpvetation by others cf mformation presented on Uus log.
Lakeridge Elementary School 9104-Z1G April 24, 1991
7400 S 1Z5th Street
Renton, Washington
ASSOCtATED
EARTH
SCIENCES, iNC
Ex��o�a-rio� �a��NG �oG E�-2A
= y � � Z� SiAt+DARD PENERATION RESISTANC� �
� = SEDIMENT DESCRIPTIQN W � p Q 81ou+s/Foot
cz � uQj �� 10 20 30 48
4n
Moist, brown, tan and black, mottled,
organic, silty, fine to coarse sand � ,
(Fill) 1� �
- - - - - - - - - - - - - - - - - - - S � _` ♦
[dD
Moist, brown oxidized, becoming less
oxidized with depth, silty, fine �
to coarse sand with gravels. Gravel �
content increasing with depth.
(Lodgement Till) 10 �`
1 �
So-
�ox 11�
WD = While drilling 15
�' Samples taken using a Dames &
Moore Sampler with a 300 lb hammer.
SPT blow counts were converted
'Ofrom�-t�ie�'D'a�'�a�s'-&�loe%e`�blo�;�=counts.
Sub�xfaCe conc6tions depic;ed represern our observatio�es at ihe time ared location of this expbratary hole,modfied by geolocp'c
intespcetation,er�gneering anaEysis,and judg�ne�t TheY�e not neeessanlY reRresentative of oU�er t'ss�es and locations. We wi�not
a+ccept respons�7'+ty for the use or arterpretation by otl►eis of informatian presented an this tog.
Lakeridge Elementary School 9104-21G April 24, 199i
7400 S. 115th Street
Renton, Washington
ASSOCIATED
EARTH
SCIENCES, 1NC
EXPLC)RATiON B4RING L�G EB-3A
= y = � Z cC STAPDARD PENERATiOlV FiESJSTANCE
Q y SEDIMENT DESCAIPTION W � Q Q �ws�FoOt
� � � N �� I 0 2Q 30 40
4" To soil
Moist, brown, tan and black,mottled, � `
organic, siltp, fine to coarse sand
with gravels. (FiII)
5 �
�
Wet, brown and tan, oxidized, � �'�
mottled, silty sand with gravels.
- - - �ill� - -- - - - — — - IO T
Moist, broan, oxidized, gravelly,
silty, fine to coarse sand. Becom- � B �
ing gravelier with depth. � .
Rock in driveshoe at 122-14'-limited
sample return� (Lodgement Till)
B �
15 I __ ,
B �
BOH 16�
B = sampler bouncing on rocic
WD = While driiling 2a
'
" Samples taken using a Dames &
Moore Sampler with a 300 lb hauuner
SPT blow counts were converted
from the Dames & Moore blow counts
Subsurface condrtior�depicted represent ax abservationa at tfie time and location of ttgs expbraiory hole,mod�fied bY 9��
interpretation.en9�9�Ya+s,�l��T�Y��^��Y rMresentative of other fane�and bcations. We wiY ttoi
accept responsr'b�ty for the use or 9►rterpretation by otfiera oE infwmation presented on this log.
Lakeridge Elementary School 9104-21G April 24, 1991
7400 S 115th Street
Renton, Washington
�ssoc�aTEo
EARTH
S�iENCES, INC
EXPLORATIflN BC)RiNG L�G EB-4a
y � Z� STA[�DARO P�l�FRATtON AESiSTANCE -x-
� N SEDIMEMT DESCRIPTION W � Q Q �+�+$/�oot
�
� Q N �S 10 20 3d d0
Moist to wet, brawn, mottled, silty,
fine to coarse sand with organics.
(Fill) T �
1
SZ
Moist, brown, ogidized, silty, fine 5 T � A
to coarse sand. (Fill) 1
Moist, brown, gravellp, silty, fine T 0
to coarse sand. Lod ement Till 1
BOH 9' IQ
WD = While drilling 50+
15
'•` Samples taken using a Dames �
P'Ioore Sampler with a 300 lb
hamrner. SPT blow counts were
converted from the Dames & Moore
blow counts.
Subsur-Face '' depicted represent our obserrrationa at the time and location of iws expioratory hol�modfied by geo{o�c
�rte*i���•��^9�Y��1�t They ae not necessan7y representative of other t'snes aml bcations. We wiH not
accept responsbi'ity for tlt�use or interpretation by oUtets of informateon pre•'..ented oo tfiis log.
Lakeridge Elementary School 9104-21G April 24, 1991
7400 S 115th Street
Renton, �+lashington
ASSOCIATED
EARTH
SCtENCES, iNC
South 114th Sfreet
''s . FlGURE 1: SITE AND EXPLORA�I�N PLAN
- - __- - - - - . .. �„
, . - - - - - - - - -__ _ , .
, ; � ,
, , `1 `� �
h°' % EB-9 ' `��" � ` ��'
�y ; , `�� � �. ��
i • ` �`� � � ��
� � �� � � �\
,� �� � ,�` �� � �1
�
,�h�° EB$�,1� � � ��
s , � , � � �
. � < < � ` � ' �
ti , , , � �, �
�
Grass Pla Fieid �i � � ,� � �
y , , � , , � �, , �
,' `� � `� , \
� � � � � � � �
EB-14 ' ` `
� � � � `� � � � a
. Q
, , � � `� � � � �� � 1
� � � ct � � � \ � � � Q
'�A � ` , __ ` \ \ /L�
f ��\ � ' ` \ ��\�` `� ���\� �i
vI ! �
\
� / � -- - - - - - - - -- - - - -. ��` �� ��\� �� `�� \ .�C LEGEND
� . �
� � - , - �D -- �'. �. � . . � � � �
G � �� EB-7 � '.� `, ``���\ � �\ ` � � EB-� � Approximate locatlon of exploration bor'a�g for current study
� � � . ___ - ---- � — - - -- ---•.� �� �` . � � � �
� � " — - - - - - - --- � � � � ' �
Q ' / � �- - -- - ---. � � � � � t � � � � �
,' � � i Grass Play Area � � ��`� � � ��� � � EB�yA • Approximate location of exploraUon bor�g for prevlous study
� � •� , � � �
".' ' EB-11� • -- , . . � , , ,\ � C
NORTH � '
, E 6 r ``, `•�` �`����`\` �;�`'` , �
^ � , r t ... •, � � � � , � ,
� � 1 �..�EB-2A EB-3A� �� ��, `�`�',`,`�,l`:'', � ¢
� � i �,
� � r � -Covered A/C Basketball Area ` �� '�"'
i I
1 1 � , '. � ` �` � � \ � `,�`��`��`�\ � '
1 � � � �\�\ \\\\�� �� �� �` � .
� EB-1 A�, `, �' '`
�` � i ' EB:A , \ � � ,`�;� � 1,\,
' i � � ' , � , '� � � � � � � � � � a
� � � � \ � � ` � � � � � � � � p
, i ( � , � , � � � � � � � � �
� � EXISTING BUILDING Wood Chip � �\ � � � � � � � � �
� � � Play Area � �, `\�� � � � �` ` �
1 I � . t � �� �
� 1 � � � \ � \� � \
�\ ��� \ � \� �.
I 1 � �
, << ; � EB-5 � �, '.,�� `, L`
, � `�
� ` � �e � ��``. �� ��� � �'�
! � f G�cte �B-1 `, �� � ` � � � so
', i O . � � � � , �
, ; r i Grass E8-4 • ` ` ' �� � '
� � � � �
- , i � � � ` � � �
South 'I 15th Street ' � ' ` � �
, , ,
, � o � � � �
� , , �
, � , i EB-2 EB-3 � a �, , �
� � � � ` � �
� i � • �
� ' �� �
, � � , � ' �.
', � � Asphali ,' � N ; `� \
, P-2a P-2s P-22 � Q , � LAKERIDGE ELEMENTARY SCHOOL
,' ,' i ;� % _ _- - - _ _ _-- _---_ - _ _ _ _ _ = _ - _ - ` `��° RENTON, WASHINGTON
r , � ' _ - _ — =' __—_ _ _ _ _ _ __-'---_ - — = - � —� PROJECT NO. G93010A
�
� � ' " � �7 0" � � � " � '° FEBRUARY 1993
�
o �o0 200
SCALE IN FEET ASSOCIATED
EARTH
South 1 '16fh Street SCIENCES, INC I
EXPL�RATION B�RiNG LOG EB-i
_ � z¢ SiAJ�DAi�PEI�ERATION REStSTANC�
SEDIMEM'DESCRIPTION � � a Q Bbws/Foot
� y �� 10 20 30 4d
3 Topsoil.
Moist, brown, slightly silty to silty, fine � s
to medium sand with gravels. Becoming
unsorted, silty, fine to coarse sand with
gravels. Oxidized to 62' . (Lodgement Till) S �
81 �
Ias,�" B
BOH @ 9' 10
B = sampler bouncing
5ubsurface condtions depicted�epreserrt our observatio�s at the time and location of tlus eacploraiory hote,mocfefied by geobcy'c
interpretation,er�geneering anaFysis,and judgmeni TheY�e noi necessar�ly reprerzniative of other mnes and locations, We will nd
accept responsbiGiy for!he use or interpretaiion hy others of infamation presented on tfiis fog.
G93010A 1/18/93
Lakeridge Elementary School
South I15th Street ASSOClATED �
Seattle, �dashington EARTH
SCtENCES, INC
EXPLORATI4N BOR{NC LOG EB-2
_ � _¢ STAI��AFia PEI�RATION AES�STANC�
SEDqNENT DESCRIPTfON �a � O Q Blows/Foot
� y �3 I 0 20 30 40
4"-6" Asphalt
Moist, bro4rn becoming gray, unsorted, silty,
fine to coarse sand with gravels. Slightly T 52/6" �
oxidized at sample interval 5'-62' . 1
(Lodgement Till) 5
I 9�, .
8�„
2
BOH @ 62'
10
�
'
Subsscface conc5tio�depicted tepresent our observatiorfa at the time and location of ihs expio�atory hol�modified by geobgic
irHerpretation,ergmeer�9 analysis.and 1�9��Y ae not necessanly repre`�r►tative of ather times and tocations. We witl not
accept respons��ty for the use or interpretation by others of inforrnation presented on ttis log "
G93010A 1/18/93
Lakeridge Elementary School
South llSth Street AS SOCIATE D �
Seattle, Washington
EARTM
SCiENCES, INC
EXPL4RATI�N �ORING LQG �-3
_ � 2�t STAPAAFiD PETERATION RESISTANCE
SF�IMFM DESCRtPTION W � p Q Blows/Foot
� N �� t0 20 30 40
3" Asphalt
Moist, brown, slightly silty to silty, fine
to medium sand becoming silty, fine to "�' �
coarse sand with gravels. (Fill) 1
5
Moist, brown, unsorted, silty, fine to coarse 50/4"
sand with gravels. (Lodgement Till) _
BOH @ 8`
10
Subsvrface con�tions depicied►epresent our observatians at the time and location of Uvs expbratory feole,modrfied by geobgic
�terpretabor►,etx,�eefin9�N�S,�1�9�t Tt�eY are not necessan7y reprr_mtaiive of other tunes and locations, we wiU not
accept respansb�ty far tl�e use or Pnterpretatian by oihers ot ir�formation presenled on this Tog. '
G93010A 1/18/93
Lakeridge Elementary School
South 115th Street � ASSOCIATE D
Seattle, [dashington EARTH
SCIENCES, INC
EXPL�RATIDN B�RING LaG EB-4
_ � Z� STAI�UAAQ PErE.RATION RESiSTAtJC�
SEQIMENT DESCRIPTtON W � p¢ Blows/Foot
� y �3 10 20 30 40
z" Asphalt
Moist, tan to brown to dark brown, oxidized,
mottled, clayey, silty to slightly silty, fin �
a
to medium sand with scattered gravels. (Fill)
Moist, brown, unsorted, silty, fine to coarse 5
sand with gravels. (Lodgement Till)
. I -
BOH @ 9' l�j
�
1
Subsurface condtions depicted represent our observatiorts at the time and bcation of thes exploratory hole,modfied by geo[ogic
inte�pretation,erg�eering arsaiysis,and judgment. They are not necessar�iy repr�mtative of other t6nes aod locations. We wiil not
accept respons+bTity for the use or'viterpretation by atlters of information presented on tltis log. '
G93010A 1f18/93
Lakeridge Elementary School
South 11.5th Street
seattle, washington ASSO CIATE D -
EARTH
SCIENCES, iNC
EXPLORATIC�N BORING L�G EB-5
_ � Z 2 STAt�Af�PF�JERATtON REStSTANC�
SEDIN�JdT DESCFllPT10N � � p Q Bbws/Foot
� N �3 10 2D 30 40
4" Asphalt.
Moist to wet, brown and tan, mottled, silty,
fine to coarse sand with gravels. (Fill} �
I
Moist, brown, unsorted, silty, fine to coarse 5
sand with gravels. (Lodgement Till)
Z 53/6" �
BOH @ 8'
10
�
Subsau�face condrtions depicied represent our observations at the time and location of ttus expbratory hole,nwdified by geolagic
irtterpretation,engneerirg analysjs,and jucicpt�e�rt,They ae not necessan7y repr�s�ntative of other times and(ocations. We wiU not
accept resporssb�iiy for the use or e�terpretation b�r olhers of information presented or�tltis fag.
G930109 1/18/93
Lakeridge Elementary School
South 115th Street ASSOClATED �
Seattle, Washington EARTH
SCIENCES, INC
EXPL�RAT{ON BORfNG L�G EB-6
_ � Z¢ STAl�ARO PENFAATION RESISTANC�
SEDIMENT DESCRIPTIQP! � � �Q Bbws/Foot
� y �3 10 20 30 40
6" Cedar chips.
Moist to wet, brown, oxidized, mottled,
silty, fine to medium sand with minor T �
organics. (Fiil) 1
5
b8 a
�loist, brown-gray, unsorted, silty, fine to T
coarse sand with ravels. Lod ement Till 1
BOH C� 9' 10
�
'
Subswface condtions depicted represent our observations at the time and focation oE ttris expioratory hde,modfied by geota,pc
irtterpretation,engineering analysis,�d judgment They ae not necessanly reprr_rntative of other times and bcations. We w�not
accept respons+biGty for tfie use or int+erpretation by otftets of irtformafion presentetl on tftis log.
G93010A 1/18/93
Lakeridge Elementary School
South llSth Street
seatt�e, Washingtan ASSQCIATE D .
EARTH
SCIENCES, tNC
EXPLORATION B�RIN� L�C EB-7
� � i� sraroaao�anoN REstsraric�
SEDIMENT DESCRIPTION `a � p a Blows/Foot
Q N �� 10 2U 30 4C3
3" Topsoil.
Moist, brown, oxidized, mottled, silty, fine
to coarse sand with gravels. (Fill) �
Moist, brown, unsorted, silty, fine to coarse 5
sand with gravels. (Lodgement Till)
.Z �'2�6�� •
BOH � 8'
10
B = sampler bouncing (rock in driveshoe)
I
Subsur#aee condtions depicted cepreser�t our observations at the time artd location of tttis expforatory hole,mo�fied by geobgic
�,s�ta�w�,n,�,eern,y anatv�;s.ar,d iudsmer�c.rn�y ae not n��y reQ��t;,,r�ot on,er mnes and�o�aeor,s. We wiB not
accept responsb7'ity for the use or interpretation by othets of�formation preseoied on this bg -
G93010A 1/18/93
Lakeridge EZementary School
south 115th Street ASSOCIAT E D �
Seattle, Washington EA RTH
SClENCES, t1VC
EXPLORATIaN BORING L4G EB-8
_ � z� STAt�DAf�PE�ERATiON REStSTANGE
SED�AENT DESCRIPTION W � p Q Bbws/Foot
n y �3 !0 24 30 40
3" Topsoil.
Moist becoming wet with depth, brown,
oxidized, mottled in areas, clayey, silty to � '�
slightZy silty, fine to medium sand wi.th
gravels and minor organics. (FilZ) 5
��
I '
Moist, brown, unsorted, silty, fine to coarse 1 SO/6'
sand with graavels. (Lodgement Ti.11)
BOH C� 132t
�
,
Subsurface condPtions depicted represent our observatians at the 6me and location of tftis expbratory hole,modfied by geologic
interp�etatiw�.e+gu�eeriny analYsis,and judcynent They are rtot necessanly repr�zntaiive of other�nes a�d locatior�s. We wi�not
accept respons��d'ity fw ihe use or interpretation b!/others of inEormation presented on this log. �
G93010A 1/18/93
Lakeridge Elementary School
south 115th street ASSOCIATE D -
Seattle, washington EARTM
SCIENCES, [NC
EXPLORATIaN B�R1NG LOG EB-9
� z¢ STAADAAD PE�ERATfON RESISTANC�
SEDBVfE�fT DESCRIPTION �a � p� Bio+ws/Foot
� N �� IU 20 3Q 40
4" Topsoil.
Moist, brown, oxidized, silty, fine to
medium sand becoming silty, fine to coarse T
sand. (Fill) 1
S
Moist, brown, unsorted, silty, fine to
coarse sand with gravels. Containing � 93 •
coal bits. (Lodgement Till)
10
I ��9" .
Box @ ls�' ,
is
�
Subsurface condtior�s depieted represent our obse:vations at the time a�locatiort of tfiis exploratory hole,mo�fted by geoFogic
interpretaiion,rrtgineering artafysis.and judgment'They ae not necesaan7Y reP�zntative of athe�t6nes and locatioas. we w�rot
accept respons�Tity for tfie use or inie�etation by othcrs of mfwmation presented on this log. �
G93010A 1/18/93
Lakeridge Elementary School
South 115th Street AS S OCIATE D �
Seattle, tJashington
EARTH
SC[ENCES, INC
EXP�ORATION BORING L4� EB-10
= J Z� STAI'�AAD PErERATION RESJSTANC�
SEDIMENT DESCRIPTION � � �a Bbwa/Foot
� y �3 l0 2� 30 4�
3" Topsoil.
Moist, brown, oxidized, silty , fine to
medium sand. (Fill) � •
Moist, bro�an, unsorted, silty, fine to 5
coarse sand with gravels. (Lodgement Till)
I77/9" �
BOH @ 9` 10
, ,
Subs�pface con�ti�s depicted represertt our observations at the time and focation of this exploratory hole,modfied by geabpc
irtterpretation,engineetn�g analysis,and judgment They�e not necessardy repre�rntaiive of other t�es and(ocatior�s. We wi0 not
accept responst'biGty for the use or interpretation bY othets of urformation p►esented on this fog. '
G930IOA 1/18/93
Lakeridge Elementary School
South 115th Street ASSOCIATE D �
Seattle, Washington EARTH
SCIENCES, INC
EXPLORAT1aN B�R1NG LOG EB-�l
_ � Z 2 SCAMARD PEtEFiAl10N RESI5TANC�
SEDIMENT DESCR�TION � � 0 Q 6bws/Foot
� y �3 10 20 30 40
4" Topsoil.
Moist, brown, oxidized, silty, organic,
fine to medium sand. (Fill) T �
1
5
Moist, brown-gray, unsorted, silty, fine
to coarse sand with gravels. (Lodgement Till
I92,s� •
BOH @ 9' 10
5ubswface candrtioas depicted represent our observatiorts at the time and location of ttris exploratory hd�modfred by geofogie
irrterpretation,engineering anaiysis,and jud�neM.They az nat necessan'!y reprezantative of other times and bcatiorts. We wiA not
accep!responsbd'ity for the use or b�terpretatian by oihers of information presented on tf�is log. � j
G9301�A 1/i8J93
Lakeridge Elementary School
South 115th Street ASSOCIATED -
Seattle, Washington EARTH
SCIENCES, INC �
1 1 \
� 1 \
� � \
� � \
� �
� \
Waod Chlp `� � �\
Play Area � �� �
Covered �� � ��
A/C Basketball \ � �
Court � � �
(To Remain) `� � o '
� 1
�
i '
t_ � �
'�'-�.-� �-__ _ ._ � �
� , ,
- � EB-12A, B, C � �
� ;
Proposed Bu�ding ' `� �
Wood � �
Chip � � �
Play '� �
Area \�
`�.. �� \
EB-i3• � , ,
I� � �
� �
. �
� �
� � �
� w�
, m
EB-14• ��
Existing Bw1d'mg `�
��,..- .
c� � 1� �� �� .�
,, r� �
� �
.
� �
s- ,
,,
s �
\
\
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W
6�
O
LEGEND
�.14 � Approxlmate lacation of expluratbn boring N�TM
0 40 80
SCALE IN FEET ADDITIONAL EXPLORAT{ON MAP
A880C1�►TED
LAKERIDGE ELEMENTARY SCHOOL E A RTi-!
RENTON, WASHlNGTON 8C1 E RI C E�� 1 N C
G93010A 3/94 F'1GURE 1
EXPLORATION BOf�ING LOG
Number EB-12
STANDARD PENETRATIGN
_ � �c RESISTANCE
SEDIMENT DESCRIPTION Q Q �Q e,a��F�ot
� � �
C4
�0 2o so ao
Wet,dark brown to brown,sl[fy,�ne to medium
SAND wltt�trace gravel. (Fiq
2.5
�2
5.0
�14
7.5
44
•
Molst,Ifght brown to gray rv(tt�orange motfiting,s(lty,
fine to medium SAND with same grwel.
<Lodgement T1i,weothered In upper 1 to 2 feet)
10.0
t50
BOH� 11-1/2'
12.5
�bsurfaca condttbru deplcted represent our observaifons cst ihe ttme and bcafbn of thLs e�loratory hole,modified by esolop!c
interpretations,ertAt�ee�ing anaysts,and Judgment. They�e not necessarily representatNe of other iimes and locciffons. We wfll nc�
accept responslbNttyforthe use or IrNerpretatfon by others of Informatfon presertited on this tog. Revlewed 8y ��
Associated Earth Sclences, Inc. Lakeridge Elementary Sch�ol
911 Fiffh Avenue, Suite i00 Renton, Washington
Kitkland, Washington 98033 Project No, G93010A
Phone; 206-827-770� March 1994
Grrv� '�n/,_R77_�,�17/1
EXPLORATI�N BOf�ING LOG
Number EB-13 �
STANDARD PENETRATION
_ � Z� RESISTANCE
SEDIMENT DESCRIPTION w g �Q e�o+Ns�Foot
o � ��
c�
�0 2o so ao
2.5
�3
MoisF to wet,brown to ilght brown,sitty,flne to
medium SAND wlth irace gravel. (Fl1D
5.0 r �
�4
�
--------------------------------------------------------------------------------
Molst to damp,gray,silty,fins to medium SAND wlth �'5
sorne gravel. (Lodgement TNI) �p/6•
BOH �9' 10.0
Note: Minor seepage at 7'.
12.5 '
Subsvrfxe condlfloru deplcted rapresent out observatfons at the tlme and tocctlon af ihls e�loratory hole,modMed bY 9�o81c
Intsrpretarioris,enghee�ing rnatysts.and)udgment. fiey are not necessadly representotive ot other flmes and bcallons, Wa wla not
accept re�or�slYbpEtv ror me�e or�nrerpretot�on by otners of�nr«manon presentee on m!s tog. Revlewed By L_._J
Assoclated Earth Sciences, �nc. Lakeridge Elementary School
911 Fltth Avenue, suite �oo Renton, Washington
Kirkland, Washington 98033 Pro'ect No. G93010A
Phone; 206-827-7701 March 1994
r,..... nnc on� c.tn n
EXPLOf�ATION B�RING LOG
Number EB-14
STANDARD PENETRATION
_ � Z� RESISTANCE
W � �Q Blows/Foot
SEDIMENT DESCRIPTION o � �3
�a 20 3o ao
Moist to wet,Oght brown to brown to gr�y with 2'�
depth,s9ty,flne to medlum SAND wlth irace �
gravel anci organlcs. (Fill) �
5.0 9
7,5
31
�
-------------------------------------------------------------------------------- � ;
l0A j
Damp,gray,silty,fine to med(um SAND with +� �
some gravel. (Lodgement TO()
i
12.5 T !
BOH� 13' 1 50/b• I
Note: Mlnor seepage at 9-1/2' ;
Subs�xface cond�fortis ciepicted tepresent au observaibns ct the rime and locatfon of it�ls e�bratory hole,modMed by gedoglc
�terpretatbru,engineerin8 anah/sls,and Judement. fiey cue not necessadly represerrtatNe of oiher limes and locnHons. We wIG nat
nccept responsror�try tor the use a��Nerpratoflon by omers of�ntormat�on presented on mts tog. ReVIAWed By �
Assoclated Earth Sciences, inc. Lakeridge Elementary Schoo!
911 Fiffh Avenue, Suife 100 Renton, Washington
Kirkfand, Washington 98033 Project No, G93410A
Phone: 206-827-7701 M�rc�h 1994
� '+.v i n�-ti r •n �
i !
o � �
� �w - ¢U
I � �
SECTION 21 , TOWNSHIP 20N, RA.NGE SE, W.M.
� � TIFFANY PARK ELEMENTARY
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C1. t EXISTING CONDlT(DlVS (N) Y' '�':-` '', a '�—� � ',����_ �',`� - ,,� �'���., ;
C1.2 EXiSTJNG C�NUlT10NS (S) 'i a � � �; �s �� ,� n�, " � :- `�,� �a �`µ:� '
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C2.2 EROSION CONTROL PLAN (S) =' �� �'�a i .`� ;s � . t � � � �
CZ 3 EROSION CONTROL NOTES � � ���' ' ,��,�� ,. �� . ` °;;��� s=�s .�;� �t a a . �
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C2.4 EROSIQN CONTROL DETAlLS �F ��� �,�� ���'� �a � -t = i ' �b�� ' � ' '
C3. l GRADING, PAVING, AND STORM PLAN (.N) ���- �.. �� -. g=��"'F` ' �� `-Y '�:`' �`rA`.� ;
� �� C3.2 GR,4DING, PAVING, AND STORM PLAN (S) ' ��� .� �=f ~� t, . �Y� _ _> �,, f""� ��
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�""� C3.4 STORM DRAINAGE DETAILS �' � ' ���'=�' . `�` '" :' ' u'
` C3.5 STORM DRAINAGE DETAI�S � �, '� ( — -
F p��� C3.6 �'AV1NG DE IAtLS ANU NU 1�S
� ��¢� C3J PAVING DE�AILS ��?84���
� C3.8 STORM PROFlLES -
C4. 1 WATER AND SEWER PLAN (N) (
� G4.Z VYATER AND SEWER PLAN (S)
� � � � C4.3 SEWER DETAILS AND NOT€S ��+� LEGEND �� VICINITY MAP j
� � � � � C4.4 WATER DEiA1LS AND NOTES wx� u� � N.T.S. �
f
� C4.5 WATER DE.TAILS "'^� � � � �
� G4.b WATER DETiilLS `�' `�
� urai aAsn� ■
C5. 1 COMPOSITE UTlLITY PLAN ;N) -, �� �� � ����,,
� C5.2 COMPOSITE UTILITY PL4N (S) ; s,r„T„�,,�,,,,,,o,� � VERTICAL DATUM:
DABEI�G.NG.
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. WATER VALVE y F�V. 30Ali69 SPELLJV6iLA�LS -
�- SANfiARY Ltf� ,� .
BY 765T
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� �: �QT ELEVA7TON ---i 9.80 '
µ �a �;,,°' EXHIBIT A-12 ;
c�:;r�tii•.,p� ��;-���� riaE t�r6wNrt �
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�'`� _ i� � �WARH�R �� : PAGE 1 OF 16 �
� � ,t�' � �FNc�iNEF.�iNc INDEX OF CIVIL DRAWINGS C1_0 ��
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C3.5 STORM DRA�NA�E DETAILS r .�- I , ; � j
� ���� C3.6 PAVIN G D E TAtLS AN D N O T E S
� z ���;� C3.7 PAVING DETAI�S �!
� � C3.3 �TO(?M l'ROFiLES �
C4. 1 WATER AND S�WER PLAN (N}
C4.2 WATER AND SEWER PLAN (S}
� � � � C4.3 SEWER t1ETAfLS AND NOTES ��T� LtGENG P+�tU VICINITY MAP
� � � � � C9.9 W/1TER t�ETAILS .�ND NOTES w,,�t ,� � N.T.S.
g C4.5 WATER DETAILS "'"'� �a`� �
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� C4.6 WATER DETAILS
4 C5.1 COMPOSITE UT1Ll71' PLAN (N} - ��H e�s�h �
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4~`MO �� PAGE 10 OF 16
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' °� '��'�`' PAGE 13 OF 16
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F I � ! � WHEU THERE i5 A FI�4NTING STRIP EXPANSION JOINT
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TELEPHONE MEMO ��C=3t�
TO: Bill Fierst DATE: April 7, 2015, 4:28 pm
FROM: Steve Lee PROJECT NO.: 2150098.10
Development Engineering Manager pROJECT NAME: Tiffany Park Elementary School Modular
City of Renton Classroom Improvements
SUBJECT: Tiffany Park Elementary School Modular Classroom Improvements
This is Steve Lee, City of Renton, returning your email message. I had kind of looked into your unique situation
for that school. What we can do are two things: 1) I was going to ask you if you have a copy of the TIR or Storm
Report for that old structure, or 2) if you do not, if you can as-built that structure—get the diameters, the depth of
bury, invert elevations, orifice sizes, etc., then, essentially, that would be fine to move it and have it all connected
with the same type of elevations and everything in a different location. That then would relate back to what your
as-built plans would include on your survey, and you can put that as your existing survey information.
When you come in for the final information when you are completed, you would have the proposed location and
all that good stuff, as well as the as-built provided to us so we can inventory that within our GIS database. How is
that for a solution? You will be below the 2,000-square foot requirement, so that does not trigger anything new.
But, if that site does have an additional improvement, what we start looking at now is, within the six-year period,
are you inserting one after another after another portable? Then the next one would trigger a storm drainage
review and requirements, etc., that would account for this one too. If you do not have a next one, then you would
not have that trigger.
That is kind the gist of what you can do and submit for that portion of Tiffany Park Elementary School. Hopefully,
that makes sense, and if it does not, feel free to give me a call.
Prepared by: Linda Katzenberger
Word Processor
Thrs message was transcribed from a vorcemai!message and is not verbatim. Please refer to the.wav file for the exact recording.
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EXHIBIT A-13
Page 1 of 1
N-001
�
IV-UO2 �
� �✓
� o� w-oo4
DETE IOPI
� �
P� �
N-003
,���Id-0
i ✓
c
w-oo� N-n s
'������ DOWNSPOUT �
--�- � �
__ - -- -
NODE ID & REACH ID ,
�. ,
;
�
,-
i
,-
, ;
,
,
�_
; _
372.785 ft
�
�
367.078 ft
1.47 s
� . �s�367.529 � 368.1 • ft
` �.
��.s �y�
365.i184 ft
.i �s 365�905 it
T� /
�
0.3 ds
368.750 ft 36 432 ft
��-0,{ds 368.799 ft �
�� �
�
�
HGL & DESIGN FLOW
315.470 ft
�
�
373.790 ft /
36.� ft
� -�,�,,, 4 373.700 ft
��'` 377.9 ft
� �,
�o. �e
;
375.790 ft �
', � 373r�J10 ft
Oft ,
�
57. ft
�
�
372.570 ft 372�410 ft !
� '
'♦` 0 n 372.200 ft �
� �
i
_ - - - �
MAX (RI1Vn ELEVATION & LENGTH
CONVEYANCE CALCULATION: REFERENCES TAKEN FROM PAGES 6 & 7 OF THE
CONVEYANCE CALCULATIONS FROM THE 1999 TIFFANY PARK ELEMENTARY
SCHOOL TIR.
PIPE REACH ID No. PO1
From:CSot To: CC',n�
Pipe Diameter: 1.0000 ft n: 0.0120
pipo i.an7th iia _ nnnn ft c� n. ninn
Up invert : 365.0200 ft down invert: 363.8800 ft
DESIGN FLOW=3.67 CFS
C:OI1CCCt10I1 Area: 3.�9t50 AC. DOWtVSTREAM VF DL`-rtENTIbIV
Design Flow . 3.6735 cfs Dsgn Depth: 0.78 ft
Pine CaDacitY : 4.1631 cfs
Design Vel . 5.6072 fps Travel Time: 0.34 min
Pipe Full Vel . 5.4399 fps
PIPE REACH ID No. P05
FrOm:Cf���l TO: C`��>i
PipP niamPtPr: 1.0000 ft n: 0.0120
Pipe Length . 62.0000 ft s: 0.0100
Up invert : 371.2700 ft down invert: 370.6500 ft
DEEIGN FLOW_1.47 CF�,CB 1 TO CB 4
Collection Area: 1.440o Ac.
Design Flow . 1.4710 cfs Dsgn Depth: 0.43 ft
Uir,o �`arar.ity _ 4.1fi31 Cfs
Desiqn Vel . 4.5911 fps Travel Time: 0.23 min
Pipe Full Vel . 5.4399 fps
PIPE REACH ID No. P06
From: Ct�t"1 To: C:���I
Dipo Diama�or- tl_fff7 ft T►: 0.0120
Pipe Length : 87.0000 ft s: 0.0200
Up invert : 369.2000 ft down invert: 367.4600 ft
Collection Area: 0.3400 Ac. �ESIGN FLOW=0.3�CFS,C8 6 TO CB 4 0
Design Flow : 0.3473 cfs ' Dsgn Depth: 0.20 ff.
Pipo Capao3ty* . 1_ i196A �fs�
Design Vel . 4.0732 fps Travel Time: 0.36 min 'i
Pipe Full Vel . 5.871d fps �
FLOW FROVI THE DO�'�'vSPOUT TO CB 7 1S NiODELED AS BASIN v��VIED II!
"DOV�'NSPOUT" I
History Cleared: 11:09:37 Wednesday, June 24, 2015
ROUTEHYD [] THRU [Untitled] USING KingCountyIr AND [25 ,yr] NOTZERO
RELATIVE RATIONAL
-- _ _ _ __
' Reach Area TC Flow Full Q Full nDepth Size nVel tVel CBasin /
ID ' (ac) (min) ', (cfs) (cfs) ' ratio (ft) ; (ft/s) (ft/s) Hyd
_ --- -- --- --- - __ __ --- __ - --
12��
P-004 1.1920 6.32 3.6662 3.4615 1.06 ' ----- Diam 4.6680 4.4073 B-004
--- - -----_ _ -- -- - -- - - - - -
12"
P-002 1.1920 6.57 3.6595 ; 3.4615 1.06 ----- Diam , 4.6594 4.4073
--- _ - -- _- -- - - - - -
12"
P-008 1.1920 6.72 3.5676 , 3.4615 1.03 ----- 'I Diam 4.5424 4.4073
P-007 0.0100 6.36 0.0308 0.6095 0.05 : 0.0767 6�� 1.6133 3.1042 B-ROOF
Diam
_ _ _- � _ _ - ___� _ _ - ----- -
g��
P-006 0.1100 ' 6.54 0.3383 1.8564 0.18 � 0.1927 Diam ; 4.0449 ' S.3181 B-006
-- - ----- - ------ ----- ---
12"
P-001 ' 0.4770 6.38 1.4671 7.4704 ' 0.20 0.3003 niam �•3933 9.5116 B-001
From �iode To vode Rch Loss App Bend Junct H�'�' Loss :�1ax El
(ft) (ft) (ft) Loss (ft) Elev (ft) (ft)
- - - ------ _
- - _
365.0840
� 1V-008 j N-003 � 365.8210 �0.3371 ' 0.4206 � ------ 365.9046 373.9100
� N-002 N-008 366.9393 �0.3384 0.4768 � ------ ',' 367.0778 ; 373.7900
' =- - �
N-004 N-002 : 367.5286 ------ ------ ------ 367.5287 373.7000
-- - -- - -- - -- --
DOWNSPOUT N-007 368.7985 ------ ------ ------ 368.7985 372.2000
-- -
- ---
. - ' _ '
; N-006 DETENTION'; 369.4318 ------ I ------ , ------ 369.431 S 372.4100
j _-� - ;---- ------
N-001 DETENT'ION' 372.7846 ------ � ------ ------ 372.7846 375.4700
Record Id: B-ROOF
j -� Design Method Rational IDF Table: � KingCountyIr
� Composite C Calc
;Description � SubArea ,Sub c
_ __ _ _ - - - _ - -- --
�Pavement and roofs (n=0.90) 0.01 ac 0.90
� Directly Connected TC Calc
i Type Description Length ' Slope �oeff VIisc ' TT
--- - - ----- - -- - - -----
Fixed Minimum Tc �6.30 min
_ __ -- -
' Directly Connected TC � 6.30min
Record Id: DETENTION
Descrip: Prototype Record.Increment,0.10 ft
�Start El. 367.9100 ft �Ma�c EL 377.9100 ft
�__ .-- -.. ._ _.---
'Dummy Type Node
Record Id: DOVVl�SPOUT
Descrip: Prototype Record Increment 0.10 ft
jStart El. ,368.3600 ft IMax El. ;372.2000 ft '
`Classification,Catch Basin �Structure Type 'CB- PYT E 1
- ---- - ---- ---�
Ent Ke Groove End w/Headwall (ke=0.20) 'C ah nnelization Curved or Deflector
Catch 1.4160 ft Bottom Area 3.9700 sf
Condition Existing
Stage Storage RaNng Curve
368.3600 ft 0.0000 cf 370.3600 ft 7.9400 cf
368.4600 ft 0.3970 cf 370.4600 ft 8.3370 cf
368.5600 ft''0.7940 cf 370.5600 ft 8.7340 cf
368.6600 ft 1.1910 cf 370.6600 ft 9.1310 cf
368.7600 ft 1.5880 cf 370.7600 ft 9.5280 cf
-- __--
368.8600 ft 1.9850 cf 370.8600 ft 9.9250 cf
368.9600 ft 2.3820 cf 370.9600 ft 10.3220 cf
369.0600 ft 2.7790 cf 371.0600 ft 10.7190 cf
369.1600 ft 3.1760 cf 371.1600 ft 11.1160 cf
369.2600 ft 3.5730 cf 371.2600 ft 11.5130 cf
369.3600 ft 3.9700 cf 371.3600 ft 11.9100 cf
369.4600 ft 4.3670 cf 371.4600 ft 12.3070 cf
369.5600 ft 4.7640 cf 371.5600 ft 12.7040 cf
369.6600 ft 5.1610 cf 371.6600 ft 13.1010 cf
369.7600 ft 5.5580 cf 371.7600 ft 13.4980 cf
369.8600 ft 5.9550 cf 371.8600 ft 13.8950 cf
369.9600 ft 6.3520 cf 371.9600 ft 14.2920 cf
370.0600 ft 6.7490 cf 372.0600 ft 14.6890 cf.
370.1600 ft 7.1460 cf 372.1600 ft 15.0860 cf�
372.2000 ft 15.2449 cf�
Record Id: N-001
-- _ - --
Descrip: Prototype Record Increment ;0.10 ft
- -- -- - -
Start El. 372.0600 ft Max El. 375.4700 ft
-__ --- ------- -----
Classification;Catch Basin Structure Type 'CB-TYPE 1 '
Ent Ke jGroove End w/Headwall (ke=0.20) Channelization Curved or Deflector
Catch '1.4160 ft ZBottom Area 3.9700 sf
Condition Existing
Stage Storage Rating Curve
372.0600 ft 0.0000 cf 373.8600 ft 7.1460 cf
372.1600 ft 0.3970 cf 373.9600 ft 7.5430 cf
372.2600 ft 0.7940 cf 374.0600 ft 7.9400 cf
372.3600 ft 1.1910 cf 374.1600 ft 8.3370 cf
372.4600 ft 1.5880 cf 374.2600 ft 8.7340 cf
372.5600 ft 1.9850 cf 374.3600 ft 9.1310 cf
372.6600 ft 2.3820 cf 374.4600 ft 9.5280 cf
372.7600 ft 2.7790 cf 374.5600 ft 9.9250 cf
372.8600 ft 3.1760 cf 374.6600 ft 10.3220 cf '
372.9600 ft 3.5730 cf 374.7600 ft 10.7190 cf
373.0600 ft 3.9700 cf 374.8600 ft I 1.1160 cf
373.1600 ft 4.3670 cf 374.9600 ft 11.5130 cf
373.2600 ft 4.7640 cf 375.0600 ft 11.9100 cf
373.3600 ft 5.1610 cf 375.1600 ft 12.3070 cf
373.4600 ft 5.5580 cf 375.2600 ft 12.7040 cf
373.5600 ft 5.9550 cf 375.3600 ft 13.1010 cf
373.6600 ft 6.3520 cf 375.4600 ft 13.4980 cf
375.4700 ft 13.5377 cf
Record Id: N-002
'Descrip: ,Prototype Record �Increment '0.10 ft
- _-- -_ _- - ----- ----
'Start EL :364.9800 ft Max El. 373.7900 ft '
�Classification�Catch Basin I,Structure Type B TYPE 1� I
'Ent Ke �Groove End w/Headwall(ke=0.20) ;Channelization Curved or Deflector�
ICatch �;1 4160 ft ;Bottom Area 3.9700 sf
�Condition � Existing
--- _ __- �----
Stage Storage RaNng Curve
364.9800 ft 0.0000 cf 369.4800 ft 17.8650 cf
365.0800 ft 0.3970 cf 369.5800 ft 18.2620 cf'
365.1800 ft 0.7940 cf 369.6800 ft 18.6590 cf
365.2800 ft: 1.1910 cf 369.7800 ft 19.4560 cf
-- --
365.3800 ft 1.5880 cf 369.8800 ft 19.4530 cf'
365.4800 ft 1.9850 cf 369.9800 ft 19.8500 cf
365.5800 ft 2.3820 cf 370.0800 ft 20.2470 cf'.
365.6800 ft 2.7790 cf 370.1800 ft 20.6440 cf'
---- ---
365.7800 ft 3.1760 cf 370.2800 ft 21.0410 cf
365.8800 ft 3.5730 cf 370.3800 ft 21.4380 cf'�
365.9800 ft 3.9700 cf 370.4800 ft 21.8350 cf�
366.0800 ft 4.3670 cf 370.5800 ft 22.2320 cf
366.1800 ft 4.7640 cf 370.6800 ft 22.6290 cf
366.2800 ft 5.1610 cf 370.7800 ft 23.0260 cf
_-- - -
366.3800 ft 5.5580 cf 370.8800 ft 23.4230 cf
366.4800 ft 5.9550 cf 370.9800 ft 23.8200 cf
366.5800 ft 6.3520 cf 371.0800 ft 24.2170 cf '
366.6800 ft 6.7490 cf 371.1800 ft 24.6140 cf:
366.7800 ft 7.1460 cf 371.2800 ft 25A110 cf�
366.8800 ft 7.5430 cf 371.3800 ft 25.4080 cf
__ ___ _
366.9800 ft 7.9400 cf 371.4800 ft 25.8050 cf'
367.0800 ft 8.3370 cf 371.5800 ft 26.2020 cf
367.1800 ft 8.7340 cf 371.6800 ft 26.5990 cf
367.2800 ft 9.1310 cf 371.7800 ft 26.9960 cf
367.3800 ft 9.5280 cf 371.8800 ft 27.3930 cf
367.4800 ft 9.9250 cf 371.9800 ft 27.7900 cf
367.5800 ft 10.3220 cf 372.0800 ft 28.1870 cf
367.6800 ft'10.7190 cf 372.1800 ft 28.5840 cf
367.7800 ft 11.1160 cf 372.2800 ft 28.9810 cf,
367.8800 ft 11.5130 cf 372.3800 ft 29.3780 cf',
367.9800 ft 11.9100 cf:372.4800 ft 29.7750 cf'
368.0800 ft 12.3070 cf 372.5800 ft 30.1720 cf
368.1800 ft 12.7040 cf 372.6800 ft 30.5690 cf
368.2800 ft 13.1010 cf 372.7800 ft 30.9660 cf
368.3800 ft 13.4980 cf 372.8800 ft 31.3630 cf
368.4800 ft 13.8950 cf 372.9800 ft 31.7600 cf
368.5800 ft 14.2920 cf 373.0800 ft 32.1570 cf
368.6800 ft 14.6890 cf 373.1800 ft 32.5540 cf
368.7800 ft 15.0860 cf 373.2800 ft 32.9510 cf
368.8800 ft 15.4830 cf 373.3800 ft 33.3480 cf
368.9800 ft 15.8800 cf 373.4800 ft 33.7450 cf
369.0800 ft 16.2770 cf 373.5800 ft 34.1420 cf
369.1800 ft l 6.6740 cf 373.6800 ft 34.5390 cf
369.2800 ft 17.0710 cf 373.7800 ft 34.9360 cf
373.7900 ft 34.9757 cf
Record Id: N-003
� _ r
'',Descrip: �Prototype Record Increment 0.10 ft
':Start El. 364.0840 ft �Max EL ,375.7900 ft
Dummy Type Node
'
Record Id: N-004
�Descrip: �Prototype Record Increment 0.10 ft
,
- - - -_ _ -
�Start El. �65.0200 ft Max El. 373.7000 ft
-- - - - - --- �_s_ - ---- - --
�Classification Catch Basin ,Structure Type ;CB-TYPE 1
,Ent Ke Groove End w/Headwall (ke=0.20);Channelization'',Curved or Deflector
Catch �1.4160 ft 'Bottom Area i3.9700 sf
,Condition Existing
Stage Storage Rating Curve
365.0200 ft 0.0000 cf 369.4200 ft 17.4680 cf
365.1200 ft 0.3970 cf 369.5200 ft 17.8650 cf
365.2200 ft 0.7940 cf 369.6200 ft 18.2620 cf
365.3200 ft 1.1910 cf 369.7200 ft 18.6590 cf
365.4200 ft 1.5880 cf 369.8200 ft 19.0560 cf
365.5200 ft 1.9850 cf 369.9200 ft 19.4530 cf
365.6200 ft 23820 cf 370A200 ft 19.8500 cf
365.7200 ft 2.7790 cf 370.1200 ft 20.2470 cf I I
365.8200 ft 3.1760 cf 370.2200 ft 20.6440 cf '
365.9200 ft 3.5730 cf 370.3200 ft 21.0410 cf
366.0200 ft 3.9700 cf 370.4200 ft 21.4380 cf
-- ___ __ _ _
366.1200 ft 4.3670 cf 370.5200 ft 21.8350 cf
366.2200 ft 4.7640 cf 370.6200 ft 22.2320 cf ',
366.3200 ft � 5.1610 cf 370.7200 ft 22.6290 cf� '�,
366.4200 ft 5.5580 cf 370.8200 ft 23.0260 cf i '
--- --
366.5200 ft 5.9550 cf 370.9200 ft 23.4230 cf
366.6200 ft 6.3520 cf 371.0200 ft 23.8200 cf'
366.7200 ft 6.7490 cf 3711200 ft 24.2170 cf i '
366.8200 ft 7.1460 cf 371.2200 ft 24.6140 cf j
�
366.9200 ft 7.5430 cf 371.3200 ft 25.0110 cf i
---- - �
367.0200 ft 7.9400 cf 371.4200 ft 25.4080 cf�
-- --__
367.1200 ft 8.3370 cf 371.5200 ft 25.8050 cf
367.2200 ft' 8.7340 cf ;371.6200 ft 26.2020 cf
367.3200 ft 9.1310 cf '371.7200 ft 26.5990 cf; '
367.4200 ft 9.5280 cf 371.8200 ft 26.9960 cf i
--- -----�
367.5200 ft 9.9250 cf 371.9200 ft 27.3930 cf'
367.6200 ft 10.3220 cf 372.0200 ft 27.7900 cf;
367.7200 ft 10.7190 cf 372.1200 ft 28.1870 cf'
367.8200 ft 11.1160 cf 372.2200 ft 28.5840 cf
367.9200 ft 11.5130 cf 372.3200 ft 28.9810 cf'
368A200 ft 11.9100 cf 372.4200 ft 29.3780 cf
368.1200 ft 12.3070 cf 372.5200 ft 29.7750 cf
368.2200 ft 12.7040 cf 372.6200 ft 30.1720 cf
368.3200 ft 13.1010 cf 372.7200 ft 30.5690 cf
368.4200 ft 13.4980 cf 372.8200 ft 30.9660 cf '
368.5200 ft 13.8950 cf 372.9200 ft 31.3630 cf
368.6200 ft 14.2920 cf 373.0200 ft 31.7600 cf
368.7200 $'14.6890 cf 373.1200 ft 32.1570 cf
368.8200 ft 15.0860 cf 373.2200 ft 32.5540 cf
368.9200 ft 15.4830 cf 373.3200 ft 32.9510 cf
369.0200 ft 15.8800 cf 373.4200 ft 33.3480 cf
369.1200 ft 16.2770 cf 373.5200 ft 33.7450 cf
369.2200 ft 16.6740 cf 373.6200 ft 34.1420 cf
� 373.7000 ft 34.4597 cf
Record Id: N-006
�Descrip: iPrototype Record Increment 0.10 ft
'Start EL 369.0600 ft Max El. 372.4100 ft
_- - -- _ --- _--- - -
'Classification Catch Basin ,Structure Type CB-TYPE 1
-- -- - -- - -- -
Ent Ke Groove End w/Headwall (ke=0.20) Channelization Curved or Deflector
-- -T - _ - - --
Catch 1.4160 ft Bottom Area '3.9700 sf
;Condition �Existing
Stage Storage Rating Curve �
369.0600 ft 0.0000 cf 370.7600 ft 6.7490 cf
369.1600 ft'0.3970 cf 370.8600 ft 7.1460 cf
369.2600 ft':0.7940 cf 370.9600 ft 7.5430 cf
369.3600 ft'1.1910 cf 371.0600 ft 7.9400 cf
369.4600 ft 1.5880 cf 371.1600 ft 8.3370 cf '
369.5600 ft 1.9850 cf 371.2600 ft 8.7340 cf
369.6600 ft 2.3820 cf 371.3600 ft 9.1310 cf
369.7600 ft 2.7790 cf 371.4600 ft 9.5280 ci'
369.8600 ft 3.1760 cf 371.5600 ft 9.9250 cf
369.9600 ft':3.5730 cf 371.6600 ft 10.3220 cr
--- - -_
370.0600 ft 3.9700 cf 371.7600 ft 10.7190 ct
370.1600 ft 4.3670 cf 371.8600 ft 11.1160 c1
370.2600 ft 4.7640 cf 371.9600 ft 11.5130 ci
370.3600 ft 5.1610 cf 372.0600 ft 11.9100 cf
370.4600 ft 5.5580 cf 372.1600 ft 12.3070 cf�'
370.5600 ft 5.9550 cf 372.2600 ft 12.7040 cf
372.4100 ft 13.2995 cf
-- - --- --- _ _ �
Record Id: N-007 ��
Descnp: Prototype Record Increment 0.10 ft
'Start El. j-1.0000 ft �Maac El. �372.5700 ft
Dummy Type Node
Record Id: N-008 '
- - _
-- - - - ---
Descrip: ,Prototype Record Increment 0.10 ft
- -- - ---- --- --- - _-�
Start El. 364.4160 ft Max El. 373.9100 ft
- -- ---- __ _-
Classification Catch Basin Structure Type ;CB-TYPE 1
Ent Ke �Groove End w/Headwall (ke=0.20) Channelization'Curved or Deflector
- --- -- -- ----- -
Catch �1 4160 ft �Bottom Area 3.9700 sf '
Condition ;Existing
- - _--- - �
Stage Storage Rating Curve I
364.4160 ft 0.0000 cf 369.2160 ft 19.0560 cf�
364.5160 ft 0.3970 cf 369.3160 ft 19.4530 cf�
- - �
364.6160 ft 0.7940 cf 369.4160 ft 19.8500 cf�
364.7160 ft 1.1910 cf 369.5160 ft 20.2470 cf�
364.8160 ft 1.5880 cf 369.6160 ft 20.6440 cf{
-- _-- ,
3649160 ft 1.9850 cf 369.7160 ft 21.0410 cf;
�
365.0160 ft 2.3820 cf 369.8160 ft 21.4380 cf'
365.1160 ft' 2.7790 cf 369.9160 ft 21.8350 cf;
365.2160 ft 3.1760 cf 370.0160 ft 22.2320 cf
365.3160 ft 3.5730 cf 370.1160 ft 22.6290 cf
365.4160 ft 3.9700 cf 370.2160 ft 23.0260 cf
365.5160 ft' 4.3670 cf 370.3160 ft 23.4230 cf
365.6160 ft 4.7640 cf 370.4160 ft 23.8200 cf
365.7160 ft 5.1610 cf 370.5160 ft 24.2170 cf
365.8160 ft 5.5580 cf 370.6160 ft 24.6140 cf'
365.9160 ft 5.9550 cf 370.7160 ft 25.0110 cf'
366.0160 ft 6.3520 cf 370.8160 ft 25.4080 cf
366.1160 ft 6.7490 cf 370.9160 ft 25.8050 cf
.�_
366.2160 ft 7.1460 cf 371.0160 ft 26.2020 cf
366.3160 ft 7.5430 cf 371.1160 ft 26.5990 cf
366.4160 ft 7.9400 cf 371.2160 ft 26.9960 cf
366.5160 ft 8.3370 cf 371.3160 ft 27.3930 cf
366.6160 ft 8.7340 cf 371.4160 ft 27.7900 cf
366.7160 ft 9.1310 cf 371.5160 ft 28.1870 cf
366.8160 ft 9.5280 cf 371.6160 ft 28.5840 cf
366.9160 ft' 9.9250 cf 371.7160 ft 28.9810 cf
367.0160 ft 10.3220 cf 371.8160 ft 29.3780 cf
367.1160 ft 10.7190 cf 371.9160 ft 29.7750 cf
367.2160 ft 11.1160 cf 372.0160 ft 30.1720 cf
_-_ _ _
367.3160 ft 11.5130 cf 372.1160 ft 30.5690 cf
367.4160 ft 11.9100 cf 372.2160 ft 30.9660 cf
367.5 l 60 ft:123070 cf 372.3160 ft 31.3630 cf
367.6160 ft'12.7040 cf 372.4160 ft 31.7600 cf
367.7160 ft'13.1010 cf 372.5160 ft 32.1570 cf
� 367.8160 ft '13.4980 cf 372.6160 ft 32.5540 cf
367.9160 ft 13.8950 cf 372.7160 ft 32.9510 cf
368.0160 ft 14.2920 cf 372.8160 ft 33.3480 cf
368.1160 ft 14.6890 cf 3729160 ft 33.7450 cf
368.2160 ft 15.0860 cf 373.0160 ft 34.1420 cf
368.3160 ft 15.4830 cf 373.1160 ft 34.5390 cf
368.4160 ft 15.8800 cf 373.2160 ft 34.9360 cf '
368.5160 ft 16.2770 cf 373.3160 ft 35.3330 cf
368.6160 ft 16.6740 cf 373.4160 ft 35.7300 cf
368.7160 ft 17.0710 cf 373.5160 ft 36.1270 cf
368.8160 ft 17.4680 cf 373.6160 ft 36.5240 cf
3689160 ft 17.8650 cf 373.7160 ft 36.9210 cf
369.0160 ft 18.2620 cf 373.8160 ft 37.3180 cf
373.9100 ft 37.6913 cf
Record Id: P-001
- __ _ _ --- —
;Section Shape: �C ri cular
_-__ _-_ ------ - ---
�niform Flow Method: Manning's Coefficient: OA 120
--- - - --- -� -
IRouting Method: 'Travel Time Translation '; i
jDnNode 'DETENTION UpNode N-001
Material Plastic � Size �12'm
- ---- _ - -_ _
Ent Losses Groove End w/Headwall I
� ____ -- -- -- -- - - --
;Length 36.5000 ft Slope 3.73%
Up Invert 372.0600 ft Dn Invert ;370.7000 ft '
- - - - --
--- -__ __ _- -- -__
��- - Conduit Constraints �
_ -- - -- -
I
Min Vel Max Vel Min Slope Max Slope;Min Cover i
!�2.00 ft/s 15.00 ft/s ;0.50% 2.00% '3.00 ft
I
;Dr p ross MH �0.0000 ft �/Infil Rate 0.0000 in/hr
�Up Invert 370.7000 ft IDn Invert �372.0600 ft
Match inverts.
DnNode 'DETENTION UpNode IN-001
Record Id: P-002
---- -- —_-- _ - _ - -- --
'Section Shape: Circular
Uniform Flow Method: ;Manning's Coefficient: 0.0120
Routing Method: Travel Time Translation �—
DnNode �N- 00 8 �UpNode !N-002 �
____ - - - -- --- - --_ _ _-- - -
Material iPlastic Size 12" Diam
- - -- - ---- - -
Ent Losses Groove End w/Headwall
Length _ ;70.5000 ft � Slope j0.80% I
UUp Invert '364.9800 ft '.Dn Invert 364.4160 ft ;
--- ---T ____a� �
- _ _ _ _ - _ --- (
Conduit Constraints '
Min Vel iMax Vel Min Slope Max Slope;Min Cover'
',2.00 ftJs i 15.0 0.50% 2.00% �3.00 ft � i
Drop across MH 0.0000 ft �Ex/Infil Rate ;0.0000 in/hr,
Up Invert 364.4160 ft � ',;Dn Invert I364.9800 ft I
Match inverts. �
DnNode N-008 UpNode �002 �
Record Id: P-004
_ - ___ _
Section Shape: Circular
- _ - _ __
Uniform Flow Method: !Manning's Coefficient: 0.0120
--- _ - - -- - _ _
;Routing Method: Travel Time Translation
— _ -- -�-� _
�DnNode 1V-002 UpNode N-004
'Material 'Plastic Size �12" Diam
------ -- - -- -
!Ent Losses Groove End w/Headwall
-- - - -- -- - --
jLength 5.0000 ft 'Slope 0.80%
_ __ --- --- _-
;Up Invert 365.0200 ft jDn Invert '364.9800 ft
Conduit Constraints
_,_ _ --- -------
Min Vel �Max Vel Min Slope',Max Slope Min Cover;
----- _ ------ --- --- :
2.00 ft/s 'I15.00 ftJs 0.50°/a 2.00°/a 3.00 ft
_ ____ __ __ -----__ __ _ �_
Drop across MH 0.0000 ft Ex/Infil Rate '0.0000 in/hr
,Up Invert 364.9800 ft Dn Invert 365.0200 ft
iMatch inverts.
=--- - -�--- --�-- -----�- ---
DnNode �2 IUpNode �N-004
Record Id: P-006
Section Shape: Circular
.Uniform Flow Method: Manning's Coefficient: 0.0120
.
iRouting Method: 'Travel Time Translation'
- -_--- -
� DnNode 'DETENTION 'UpNode N-006
__ --_ --- --
Material ,Plastic Size 8" Diam
' __ _ - ' - -- - - -- --- _
�-
�Ent Losses ;Groove End w/Headwall
iLength 'S7.5000 ft Slope 2.00%
'Up Invert �'369.0600 ft �Dn Invert 367.9100 ft
---------_ _ .
_ _ _ -- -
Conduit Constraints :
- _ -- - - _ -- ---- -
Min Vel Max Vel Min Slope Max Slope Min Cover:
�2.00 ftis 15.00 ft/s �0.0 2.00% 3.00 ft
�— - - -__- _ _ _ -_ -
------ _-- — - _-
�rop across MH 0.0000 ft Ex/Infil Rate �0.0000 iiv`hr
----- --------- _ �-- _ -
;Up Invert 367.9100 ft Dn Invert 369.0600 ft
`Match inverts.
_ _ - -
�DnNode DETENTION UpNode N-006
Record Id: P-007
'Section Shape: 'Circular
Uniform Flow Method: Manning's Coefficient: 0.0120
- - - --- - _
.Routing Method: iTravel Time Translation
DnNode �-007 �UpNode DOWNSPOUT
Material 'Plastic Size 6" Diam
-- ---- -- - - __
Ent Losses Groove End w,�Headwall
- - ----- - - - _ -- - ---
Length 6.0000 ft 'Slope 1.00%
�Up Invert �368.3600 ft Dn Invert �368.3000 ft
�_ - - - :
Conduit Constraints
Min Vel Max Vel Min Slope Max Slope,Min Cover'
- -- ---
2.00 ft/s 15.00 ftls '0.50% 2.00%0 ;3.00 ft �
Drop across MH 0.0000 ft Ex/Infil Rate '0.0000 in/hr
_ _ --
Up Invert 368.3000 ft Dn Invert 368.3600 ft
Match inverts.
_ _ -- -- ----_. -- ---
DnNode 'N-007 UpNode DOWNSPOUT
Record Id: P-008
Section Shape: Circular
�Uniform Flow Method: 'Manning's Coefficient: 0.0120
irRouting Method: iTravel Time Translation ',
jDnNode !N-003 'UpNode �N-008
�Material Plastic �' Size 12" Diam
_ _ --- - -_ - --
Ent Losses Groove End w�T�eadwall
�- - ---_ _ _
�Length 41.5000 ft Slope 0.80%
_ __ - �
;Up Invert 364.4160 ft Dn Invert '364.0840 ft
Conduit Constraints
Min Vel Max Vel Min Slope Max Slope Min Cover
� �-
2.00 ft/s '15.00 ft,�s 0.50°% 2.00% 3.00 ft
Drop across MH 0.0000 ft ,ExrInfil Rate 0.0000 inihr
-– — — - __. ._�
Up Invert 364.0840 ft �Dn Invert 364.4160 ft
Match inverts.
DnNode 'N-003 UpNode N-008
Licensed to: AHBL
'