HomeMy WebLinkAboutM.19PRELIMINARY
TECHNICAL INFORMATION REPORT
Reserve at Tiffany Park
S.E. 18th Street and 124th Place S.E.
Renton, Washington
Prepared for:
Henley USA, LLC
11100 Main Street, Suite 100
Bellevue, WA 98004
November 12, 2013
Our Job No. 16055
CIVIL ENGINEERING,LAND PLANNING,SURVEYING
18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251-6222 (425) 251-8782 FAX
BRANCH OFFICES TUMWATER, WA LONG BEACH, CA WALNUT CREEK, CA SAN DIEGO, CA
www.barghausen.com
11/12/13
16055.003.doc
TABLE OF CONTENTS
1.0 PROJECT OVERVIEW
Figure 1 – Site Location
Figure 2 – Drainage Basins, Subbasins, and Site Characteristics
Figure 3 – Soils
2.0 CONDITIONS AND REQUIREMENTS SUMMARY
2.1 Analysis of the Core Requirements
2.2 Analysis of the Special Requirements
3.0 OFF-SITE ANALYSIS
4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN
A. Existing Site Hydrology
B. Developed Site Hydrology
C. Performance Standards
D. Flow Control System
E. Water Quality System
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN
6.0 SPECIAL REPORTS AND STUDIES
7.0 OTHER PERMITS
8.0 CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (CSWPPP) ANALYSIS
AND DESIGN
9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT
10.0 OPERATIONS AND MAINTENANCE MANUAL
11.0 APPENDIX A -Lower Cedar River Basin And Nonpoint Pollution Action Plan
Henley USA, LLC
(425) 709-6527
11100 Main Street
Bellevue, WA 98004
Barry J. Talkington P.E.
Barghausen Consulting Engineers
(425) 251-6222
Reserve at Tiffany Park
23N
5E
21
East of Intersection of S.E. 18th Street
and Monroe Avenue S.E. Renton, WA
x
x
x
x
October 12, 2013 October 12, 2013
Lower Cedar River Basin
AgC
AmC
6-15 percent
6-15 percent
High
High
Discharge to existing conveyance system at S.E. 18th Street and Lake Youngs Way S.E.
1
N/A
TBD
TBD
TBD
N/A
N/A
x
x
x
x
x
x
x
x
x
x
x
x Pond
x
StormFilter
StormFilter
x
x
x x
x
11/12/13
Tab 1.0
16055.003.doc
1.0 PROJECT OVERVIEW
The proposed Plat of Reserve at Tiffany Park is a single-family residential project consisting of
98 lots zoned R8. The project is 21.60 acres in size containing four tax parcels (212305-9044,
212305-9051, 212305-9054, and 212305-9061). The site is located at the dead end of S.E. 18th
Street near the intersection of Monroe Avenue S.E. in a portion of Section 21, Township 23 North,
Range 5 East, W.M., in the City of Renton.
The site is polygonal in shape and ties into two existing road stubs. The first is located in the
northwest corner of the site at the dead-end of S.E. 18th Street. The second road stub is located
to the southwest of the site on the southern side of the Cedar River Pipeline at the dead-end of
124th Place S.E. These road stubs are to be tied into and will be extended into the site to provide
public access and circulation. This site is undeveloped and is currently zoned R8; with a majority
of the site being composed of second-growth forest. The elevations of the site range from 456 to
398. There are four wetlands located on site; three of them are Category 2, with one Category 3.
For further detail please refer to the Wetland Determination Report prepared by C. Gary Schultz
within section 6.0 of this report.
The site is entirely surrounded by existing single family residences. Along the east property line
is the Mercer Island Pipe Line R/W. Along the south boundary is the Cedar River Pipeline R/W.
Access to the site from 124th Place S.E will require the developer to obtain right of way or an
easement through the Cedar River Pipeline R/W.
On-site soils are mapped as mostly Alderwood, with a small portion along the southern boundary
mapped as Arents. Please refer to the Soils Map in this section. All drainage calculations were
modeled as till soils.
The project will be constructing roadways consisting of curb and gutter, sidewalk, and street
trees. The site will tie into the existing roads at the dead-ends of S.E. 18th Street and 124th
Place S.E. All roads for this project have been designed to be 26 feet wide, with a 7-foot planter
strip at the back of curb and a 5-foot sidewalk. Overall the proposed public right-of-way is to be
53 feet in width.
The topography on site is gentle and rolling. The site generally slopes from east to west from
elevation 456 to 398. The project will be mass graded with cuts and fills balanced onsite. The
wetland areas will remain undisturbed along with portions of their buffers. Buffer averaging is
proposed. Other portions of the site will remain undisturbed in an effort to preserve as many
existing trees as possible.
The drainage facilities are required to meet the requirements of the 2009 King County Surface
Water Design Manual (KCSWDM). The drainage design shall meet at a minimum the
Conservation Flow Control and Basic Water Quality Treatment. The drainage facility located in
Tract A is a detention pond sized for Level 2 Flow Control. Water quality will be met by the use of
a StormFilter for this project. The project will be discharging the drainage from the pond to the
existing drainage system within S.E. 18th Street. Please refer to Section 4.0 for detailed drainage
calculations.
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VICINITY MAP
Job Number
18215 72ND AVENUE SOUTH
KENT, WA 98032
(425) 251-6222
(425) 251-8782
CIVIL ENGINEERING, LAND PLANNING,
SURVEYING, ENVIRONMENTAL SERVICES
N.T.S.N/A 16055
DATE: 11/04/13
Reserve at Tiffany Park
Renton, Washington
P:\16000s\16055\exhibit\graphics\16055 vmap.cdr
REFERENCE: Thomas Guide (2006)
SITE
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ASSESSOR MAP
Job Number
18215 72ND AVENUE SOUTH
KENT, WA 98032
(425) 251-6222
(425) 251-8782
CIVIL ENGINEERING, LAND PLANNING,
SURVEYING, ENVIRONMENTAL SERVICES
N.T.S.N/A 16055
DATE: 11/04/13
Reserve at Tiffany Park
Renton, Washington
P:\16000s\16055\exhibit\graphics\16055 amap.cdr
SITE
REFERENCE: King County Department of Assessments (Dec. 2011)
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FEMA MAP
Job Number
18215 72ND AVENUE SOUTH
KENT, WA 98032
(425) 251-6222
(425) 251-8782
CIVIL ENGINEERING, LAND PLANNING,
SURVEYING, ENVIRONMENTAL SERVICES
N.T.S.N/A 16055
DATE: 11/04/13
Reserve at Tiffany Park
Renton, Washington
P:\16000s\16055\exhibit\graphics\16055 fema.cdr
REFERENCE: Federal Emergency Management Agency (Portion of Map 53033C0983 F, May 1995)
SITE
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SOIL SURVEY MAP
Job Number
18215 72ND AVENUE SOUTH
KENT, WA 98032
(425) 251-6222
(425) 251-8782
CIVIL ENGINEERING, LAND PLANNING,
SURVEYING, ENVIRONMENTAL SERVICES
N.T.S.N/A 16055
DATE: 11/04/13
Reserve at Tiffany Park
Renton, Washington
P:\16000s\16055\exhibit\graphics\16055 soil.cdr
REFERENCE: USDA, Natural Resources Conservation Service
LEGEND:
AgC = Alderwood gravelly sandy loam, 6-15% slopes
SITE
AmC = Arents, Alderwood material, 6-15% slopes
Tab 2.0
16055.003.doc
2.0 CONDITIONS AND REQUIREMENTS SUMMARY
2.1 Analysis of the Core Requirements
Core Requirement No. 1: Discharge at the Natural Location.
Response: The storm drainage from the project will be conveyed to a detention pond
that will outlet to the existing downstream drainage system in S.E. 18th Street per the
City of Renton’s request. This will serve as our project discharge location. A portion of
the lots along the existing wetlands (Wetland A, Wetland B and Wetland C) will discharge
their roof drains into the wetland areas to maintain wetland hydrology. Runoff from these
wetlands will be collected and routed to the onsite drainage facility.
Core Requirement No. 2: Off-Site Analysis.
Response: A Level 1 Downstream Drainage Analysis is provided in Section 3.0 of this
Technical Information Report.
Core Requirement No. 3: Flow Control.
Response: The project is providing a detention facility which is designed for
Conservation Flow Control (Level 2).
Core Requirement No. 4: Conveyance System.
Response: The conveyance and backwater analysis will be provided in final
engineering.
Core Requirement No. 5: Erosion and Sediment Control.
Response: Temporary erosion control measures will be provided in final engineering.
Core Requirement No. 6: Maintenance and Operations.
Response: A Maintenance and Operations Manual will be provided in final engineering.
Core Requirement No. 7: Financial Guarantees and Liability.
Response: The project will provide a Site Improvement Bond Quantity Worksheet to
establish a bond amount for drainage facility restoration and site stabilization financial
guarantee prior to construction.
Core Requirement No. 8: Water Quality.
Response: This project utilizes a StormFilter sized for Basic Water Quality Treatment.
Sizing will be completed during final engineering.
2.2 Analysis of the Special Requirements
Special Requirement No. 1: Other Adopted Area-Specific Requirements.
Response: The proposed project is not located in a designated Critical Drainage Area.
16055.003.doc
Special Requirement No. 2: Flood Hazard Area Delineation.
Response: As indicated by the FEMA Map included in this report (portion of Map
53033C0983 F, May 1995), the proposed site does not lie within a floodplain or floodway
or a stream, so this special requirement does not apply.
Special Requirement No. 3: Flood Protection Facilities.
Response: This project does not rely on an existing flood protection facility or propose to
modify or construct a new flood protection facility, so this special requirement does not
apply.
Special Requirement No. 4: Source Control.
Response: The project does not require a commercial building or commercial site
development permit, so this special requirement does not apply.
Special Requirement No. 5: Oil Control.
Response: This site is not classified as a High Use Site given the criteria in the 2009
KCSWDM, so this special requirement does not apply and no special control treatment is
necessary.
Tab 3.0
16055.003.doc
3.0 OFF-SITE ANALYSIS
Task 1 STUDY AREA DEFINITION AND MAPS
The proposed Plat of Reserve at Tiffany Park is a single-family residential project consisting of 98 lots
zoned R8. The project is 21.60 acres in size containing four tax parcels (212305-9044, 212305-9051,
212305-9054, and 212305-9061). The site is located at the dead end of S.E. 18th Street near the
intersection of Monroe Avenue S.E. in a portion of Section 21, Township 23 North, Range 5 East, W.M.,
in the City of Renton.
The site is polygonal in shape and ties into two existing road stubs. The first is located in the northwest
corner of the site at the dead-end of S.E. 18th Street. The second road stub is located to the southwest
of the site on the southern side of the Cedar River Pipeline at the dead-end of 124th Place S.E. These
road stubs are to be tied into and will be extended into the site to provide public access and circulation.
This site is undeveloped and is currently zoned R8; with a majority of the site being composed of second-
growth forest. The elevations of the site range from 456 to 398. There are four wetlands located on site;
three of them are Category 2, with one Category 3. For further detail please refer to the Wetland
Determination Report prepared by C. Gary Schultz within section 6.0 of this report.
The site is entirely surrounded by existing single family residences. Along the east property line is the
Mercer Island Pipe Line R/W. Along the south boundary is the Cedar River Pipeline R/W. Access to the
site from 124th Place S.E will require the developer to obtain right of way or an easement through the
Cedar River Pipeline R/W.
On-site soils are mapped as mostly Alderwood, with a small portion along the southern boundary mapped
as Arents. Please refer to the Soils Map in this section. All drainage calculations were modeled as till
soils.
The project will be constructing roadways consisting of curb and gutter, sidewalk, and street trees. The
site will tie into the existing roads at the dead-ends of S.E. 18th Street and 124th Place S.E. All roads for
this project have been designed to be 26 feet wide, with a 7-foot planter strip at the back of curb and a 5-
foot sidewalk. Overall the proposed public right-of-way is to be 53 feet in width.
The topography on site is gentle and rolling. The site generally slopes from east to west from elevation
456 to 398. The project will be mass graded with cuts and fills balanced onsite. The wetland areas will
remain undisturbed along with portions of their buffers. Buffer averaging is proposed. Other portions of
the site will remain undisturbed in an effort to preserve as many existing trees as possible.
The drainage facilities are required to meet the requirements of the 2009 King County Surface Water
Design Manual (KCSWDM). The drainage design shall meet at a minimum the Conservation Flow
Control and Basic Water Quality Treatment. The drainage facility located in Tract A is a detention pond
sized for Level 2 Flow Control. Water quality will be met by the use of a StormFilter for this project. The
project will be discharging the drainage from the pond to the existing drainage system within S.E. 18th
Street. Please refer to Section 4.0 for detailed drainage calculations.
UPSTREAM DRAINAGE ANALYSIS:
Upstream of the site to the northeast is the existing Mercer Island Pipeline. This pipeline is approximately
60 feet wide. The pipeline is fully cleared with grass overgrowth and is slightly crowned along the center
of the right-of-way for its full length adjacent to the project site. Due to the inability to efficiently bypass
the 30-foot-wide portion that flows onto the project site, it is proposed that this region of runoff be
collected and routed to the on-site drainage facility. As such, this area is being considered as part of the
pre-developed site and is not part of the upstream basin.
16055.003.doc
There is also an upstream basin to the east of the Mercer Island Pipe Line R/W that will be bypassed
through the site and around the onsite drainage facilities. This basin consists of runoff from a portion of
129th Place S.E. and the 19th Court S.E. cul de sac along with the surrounding homes. Runoff from this
basin is collected and routed by a series of catchbasins and storm pipes to an existing ditch along the
east side of the pipeline R/W. A twelve-inch culvert crosses the pipeline and discharges runoff into the
onsite Wetland "D". Runoff from this upstream basin and from Wetland "D" will be collected in a separate
conveyance system and routed through the site. For further detail please refer to the Upstream Basin
Map in Section 1.0.
16055.003.doc
TASK 2 RESOURCE REVIEW
• Adopted Basin Plans: The site is located within the Mainstem subarea of the Cedar River
Basin. The Mainstem subarea is included in the Lower Cedar River Basin and Nonpoint Pollution
Action Plan. Refer to Appendix A for the portions of the basin that applies to this project.
• Finalized Drainage Studies: This is not applicable.
• Basin Reconnaissance Summary Report: This site is located in the Mainstem subarea of the
Lower Cedar River Basin, which is covered by the Lower Cedar River Basin and Nonpoint
Pollution Action Plan dated July 1997 (included in Appendix A).
• Critical Drainage Area Maps: This project will not discharge to any critical areas or wetlands as
it is to tie into an existing storm drain conveyance system downstream of the detention and water
quality system. As a result no critical areas are to be affected.
• Floodplain and Floodway FEMA Maps: Please see the attached FEMA Map (Section 1.0)
utilized for this analysis. As indicated on the map the site is located in Zone X and is outside of
the 500-year flood plain.
• Other Off-Site Analysis Reports: A site investigation was conducted in preparation of this
Level 1 Off-Site Drainage Analysis. The United States Department of Agriculture Soils
Conservation Service Map is also provided. See Figure 3 – Soils Map in Section 1.0.
• Sensitive Areas Folios: Based on a review of the King County Sensitive Areas Map Folios, the
site does not contain any On-Site Wetlands, Erosion Sensitive Areas, Land Slide Areas, or any
Known Drainage Complaints. However, through field survey and analysis it has been determined
that there are four wetlands on site. As a result a formal wetland study is included in Section 6.0.
• Road Drainage Problems: This is not applicable.
• United States Department of Agriculture King County Soils Survey: Based on the Soils Map
(see Figure 3 – Soils Map Section 1.0) for this area, the majority of the site is located in the soils
configuration known as Alderwood gravelly sandy loam, and there is a small portion along the
south end of the project that is classified as Arents, Alderwood material.
• Wetland Inventory Map: Using the COR Maps and NWMaps applications on the City of Renton
website there is no known documentation or inventory of wetlands for the project site. However,
through field survey and analysis it has been determined that there are four wetlands on site. As
a result a formal wetland study is included in Section 6.0.
• Migrating River Studies: This is not applicable.
16055.003.doc
TASK 3 FIELD INSPECTION
The field reconnaissance for this Level 1 Off-Site Drainage Analysis was conducted on August 16, 2013
and November 5, 2013 for the purpose of analyzing the proposed project site and its upstream and
downstream corridors. The site visit on August 16, 2013 was sunny and dry with no evidence of standing
water or ponding along the ditch line north of the Mercer Island Pipeline. The visit on November 5, 2013
was cloudy with rain, with evidence of mild runoff from the cul-de-sac of S.E. 19th Court to its designated
collection system. It should be noted that there was some evidence of flowing or standing runoff along
the ditch line north of the Mercer Island Pipeline, but at the locations inspected depths did not exceed
more than 1 inch. The off-site drainage system was inspected one-quarter mile downstream following the
existing closed conveyance system to Tiffany Park Elementary School where the runoff is collected by a
60-inch trunk line and ultimately conveyed northwest to Ginger Creek.
3.1 Conveyance System Nuisance Problems (Type 1)
Conveyance system nuisance problems are minor but not chronic flooding or erosion problems
that result from the overflow of a constructed conveyance system that is substandard or has
become too small as a result of upstream development. Such problems warrant additional
attention because of their chronic nature and because they result from the failure of a
conveyance system to provide a minimum acceptable level of protection.
There were no conveyance system nuisance problems observed during the August 16, 2013 site
visit. Furthermore, based on a review of the drainage complaints received from the City of
Renton, there is no evidence of past conveyance system nuisance problems occurring in the
direct downstream drainage course, as there is a record of none having been submitted.
This site will have a Level 2 Flow Control, which will restrict the flow of the 2-year release rate to
50 percent of the pre-developed site and will provide adequate mitigation to prevent any future
drainage complaints as a result of this proposed site development.
3.2 Severe Erosion Problems (Type 2)
Severe erosion problems can be caused by conveyance system overflows or the concentration of
runoff into erosion-sensitive open drainage features. Severe erosion problems warrant additional
attention because they pose a significant threat either to health and safety or to public or private
property.
Based on our site visit there and the lack of drainage complaints, there was no evidence of or
potential for erosion/incision sufficient to pose a sedimentation hazard downstream within the
limits of the study. There are no defined drainage channels or ditches leaving the site. All runoff
is either infiltrated on site or sheet flows off site where it is collected by the storm drain
conveyance systems of the downstream suburban area. Stormwater runoff from the proposed
roads will be collected and conveyed to a detention and water quality facility where it will then be
discharged by tying into the existing stormwater conveyance system within S.E. 18th Street. As a
result no future erosion problems should occur because of this development downstream.
3.3 Severe Flooding Problems (Type 3)
Severe flooding problems can be caused by conveyance system overflows or the elevated water
surfaces of ponds, lakes, wetlands, or closed depressions. Severe flooding problems are defined
as follows:
• Flooding of the finished area of a habitable building for runoff events less than or equal to
the 100-year event. Examples include flooding of finished floors of homes and
commercial or industrial buildings. Flooding in electrical/heating systems and
16055.003.doc
components in the crawlspace or garage of a home. Such problems are referred to as
"severe building flooding problems."
• Flooding over all lanes of a roadway or severely impacting a sole access driveway for
runoff events less than or equal to the 100-year event. Such problems are referred to as
"severe roadway flooding problems."
Based on a review of the FEMA Map (Section 1.0) the proposed site is outside of the 500-
year floodplain, and there is no evidence of severe flooding problems encountered during our
visit.
16055.003.doc
TASK 4 DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS
DOWNSTREAM DRAINAGE ANALYSIS:
In the pre-developed condition all downstream drainage currently flows off site onto the properties
immediately adjacent to the west or onto S.E. 18th Street where it is collected by the existing stormwater
conveyance system.
In the developed condition stormwater being discharged from the site will be conveyed to any existing
catch basin at the intersection of Lake Youngs Way S.E. and S.E. 18th Street, approximately 590 feet
northwest of the site. The existing storm mainline within S.E. 18th Street will be lowered so that adequate
depth may be provided within the onsite detention facility. Upon discharging to the existing storm system
at Lake Youngs Way S.E. the existing 18-inch concrete pipe turns south and conveys stormwater to the
entrance of Tiffany Park. Our field investigation found that the existing stormpipe turns north and enters
the parking lot. At this point we were unable to follow the exact route of the existing storm as the remodel
of Tiffany Park Elementary added additional storm utilities within the parking lot. We requested as-builts
of the storm within Tiffany Park from the City of Renton but were unable to obtain the information. We
were able to obtain as-built information that shows a 60-inch CMP stormpipe runs along the west property
line of the school. This 60-inch storm pipe continues along the rear yards of the properties on the west
side of Index Court S.E. A review of the City's GIS map shows that the storm system within Lake Youngs
Way S.E. ties into the 60-inch trunk line at the southwest corner of the school property. The trunk line
runs northerly for approximately 1,100 feet before turning east to Lake Youngs Way S.E., approximately
150 feet west of the intersection with Index Court S.E. The 60-inch trunk line continues to flow in a
northerly direction within Lake Youngs Way S.E. for approximately 1,000 feet to the intersection of Royal
Hills Drive. The trunk line discharges to the headwaters of Ginger Creek at the southeast corner of this
intersection. At this point we are well beyond the quarter mile downstream point from the project.
Because the project will be providing Level 2 Flow Control and there is no evidence of flooding or erosion
within the downstream system we do not anticipate any significant impacts due to the project.
Tab 4.0
16055.003.doc
4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN
A. Existing Site Hydrology
The site is polygonal in shape and ties into two existing road stubs. The first is located in
the northwest corner of the site at the dead-end of S.E. 18th Street. The second road
stub is located to the southwest of the site on the southern side of the Cedar River
Pipeline at the dead end of 124th Place S.E. This site is undeveloped and is currently
zoned R8; with a majority of the site being composed of second-growth forest. The
elevations of the site range from 456 to 398. There are four wetlands located on site;
three of them are Category 2, with one Category 3.
The site is bordered by two pipelines. Along the entire length of the site to the south is
the Cedar River Pipeline. Similarly the northeastern boundary of the site is bordered by
the Mercer Island Pipeline along its entirety. The western and northern edges of the site
are surrounded by single-family homes on medium-sized lots. On-site soils are mapped
as mostly Alderwood, and a small portion of Arents. In the undeveloped condition runoff
flows off site onto the properties immediately adjacent to the west or onto S.E. 18th
Street where it is collected by the existing stormwater conveyance system. Please
reference the Pre-developed Basin Map in Section 1.0 for further detail.
B. Developed Site Hydrology
The completed project will create 98 lots. The total developed area will be 21.6 acres in
size and contain four tax parcels (212305-9044, 212305-9051, 212305-9054, and
212305-9061). New impervious surfaces will include roadways, driveways, and roof
areas. The project will be providing landscaped pervious areas, open space/park areas,
and a drainage facility.
A conveyance system consisting of catch basins and storm pipe will be constructed in the
roadways to collect drainage from impervious surfaces and lots and conveyed to the new
drainage facility.
A detention pond and StormFilter vault will be constructed in Tract A to provide water
quality and flow control for the project. The pond will contain a control structure fitted with
a riser overflow, a jail house grate, and an emergency overflow structure with birdcage.
Runoff will flow downstream of the control structure and emergency overflow structure to
a proposed 18-inch pipe which will discharge runoff into the existing storm drain
conveyance system at the intersection of Lake Youngs Way S.E. and S.E. 18th Street.
For further detail please reference the Developed Basin Map in Section 1.0.
C. Performance Standards
The KCRTS Runoff Time Series Program was used to size the detention facility. The
Detention pond was sized for Conservation Flow Control (Level 2) based on the
requirements of the 2009 KCSWDM and the City of Renton Amendments to the King
County Surface Water Design Manual. Please refer to the KCRTS computations
attached in this section. Based on Level 2 detention pond sizing calculations, the pond
volume required is 308,779 cubic feet
16055.003.doc
D. Flow Control System
Flow Control System details will be submitted during final engineering.
E. Water Quality System
A StormFilter will be utilized for water quality. Sizing of the StormFilter will be prepared
during final engineering.
Tab 5.0
16055.003.doc
5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN
Conveyance system analysis and backwater calculations will be provided in final engineering.
Tab 6.0
16055.003.doc
6.0 SPECIAL REPORTS AND STUDIES
The following special reports have been prepared and have been submitted under separate
cover.
• Wetland Determination prepared by C. Gary Schulz, dated October 30, 2013
• Subsurface Exploration, Geologic Hazard, and Limited Geotechnical Engineering Report
prepared by Associated Earth Sciences, Inc., dated September 28, 2012
Tab 7.0
16055.003.doc
7.0 OTHER PERMITS
This section will be completed in Final Engineering.
Tab 8.0
16055.003.doc
8.0 CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (CSWPP) ANALYSIS
AND DESIGN
This section will be completed in Final Engineering.
Tab 9.0
16055.003.doc
9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT
This section will be provided in Final Engineering.
Tab 10.0
16055.003.doc
10.0 OPERATIONS AND MAINTENANCE MANUAL
This section will be provided in Final Engineering.
11.0 APPENDIX A
Appendix A