HomeMy WebLinkAboutR_Drainage Report_121217_V3DRAINAGE REPORT
TACO BELL
Renton, Washington
4225 NE 4th Street
Renton, Washington 98059
Prepared For:
City of Renton
Design Engineer:
Jeremy White
Project Manager:
Rafia Darwish
Design Date:
November, 2017
Project Number:
2016088.28
____________________________ ________________
Darrin Kotecki, P.E. Date
12/11/17
07/31/18
1
TABLE OF CONTENTS
Technical Information Report (TIR) Overview and Background . . . . . . . . . . . . . . . . . . . . 2
Section 1 – Project Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Section 2 – Conditions and Requirements Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Section 3 – Offsite Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Section 4 – Flow Control and Water Quality Facility Analysis and Design . . . . . . . . . . . . 7
Section 5 – Conveyance System Analysis and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Section 6 – Special Reports and Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 7 – Other Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 8 – CSWPPP Analysis and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 9 – Bond Quantities, Facility Summaries, and Declaration of Covenant . . . . . . . 8-9
Section 10 – Operations and Maintenance Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Attachment A – ESM Consulting Engineers Technical Information Report (previously approved TIR)
Attachment B – Pipe Sizing Spreadsheet, Design Calculations and Variables, and Drainage Area
Delineations
Attachment C – Operations and Maintenance Manual
Attachment D – Special Requirement #4 - Source Controls
Attachment E – Bond Quantity Spreadsheet
Attachment F – ESC Maintenance Report
2
TECHNICAL INFORMATION REPORT (TIR) OVERVIEW AND BACKGROUND
The following technical information report is based on two previously approved technical information
reports, both located within Attachment A. Attachment A is a TIR completed by ESM Consulting
Engineers, LLC dated December 1, 2014. Within the ESM Consulting Engineers TIR are references to
another TIR by Barghausen, Inc, dated April 15, 2003, which is also located in Attachment A. Section
references throughout this drainage report conducted by GPD Group references the TIR conducted by
ESM Consulting Engineers, which may then in turn reference the TIR conducted by Barghausen, Inc.
Section 1 – Project Overview (Taco Bell Site Specific, by GPD)
The proposed Taco Bell project is located southwest of the intersection of NE 4th Street and Whitman
Court NE, just west of the United States Post Office, in the City of Renton, Washington. The project is
0.73 acres in size and zoned CA (Commercial Arterial).
The surface of the existing site contains asphalt pavement outlined on the outside edge by a curb and
gutter section, with roughly graded gravel areas located toward the center of the asphalt pavement. The
edges of the property are covered by roughly graded mulches, grass, and a pedestrian wood chip trail.
The developable portion of the existing site is sloped toward existing catch basins located throughout
the existing project site. The stormwater captured by these existing catch basins is then carried south
through a previously approved and constructed pipe network to a previously approved and constructed
water quality/detention pond. On the west side of the property is a wetland, which drains off site to the
south.
The surface of the proposed site will consist of a 1,856 square foot Taco Bell structure, as well as a drive-
thru lane, parking lot, landscaping and a rain garden to serve as a flow control BMP. The proposed site is
considered a large lot, high impervious and is required to treat 3,189 square feet of the target
impervious area. This will be accomplished by the installation of a rain garden sized to treat 4,151
square feet of impervious area along with 2,468 square feet of pervious area. The majority of rain water
not being captured by the rain garden will be routed to existing catch basins and pipe networks
throughout the site along with one proposed yard inlet to help convey storm water to the previously
approved and constructed water quality facility. For access, this project will utilize the existing driveway
access point on NE 4th Street.
The water quality design for this project is very unique due to the existing storm system that was
previously designed, approved and built. The existing drainage network and structures located
throughout the site are designed to drain to an existing detention/water quality facility located
southwest of the site. The existing water quality site was approved and determined to be sufficient to
handle pollutants and runoff from the proposed roadway and future lots. The size of the combined
detention/water quality facility was also previously evaluated and determined to be sufficient. The
proposed site is decreasing runoff of the existing site, and therefore will not require the combined
detention/water quality to be resized.
According to Appendix B of Attachment A, the site is underlain by native soils consisting of fill soils and
Vashon Recessional Outwash. Additionally, according to the USDA NRCS Web Soil Survey, the entire site
is underlain by Alderwood Gravelly Sandy Load, which varies from 8% to 15%.
3
Section 2 – Conditions and Requirements Summary (Taco Bell Site Specific, By GPD)
Core Requirement #1 Discharge at the Natural Location:
All of the collected storm surface water runoff will either be collected by a series of catch basins located
on site or sheet flow to the proposed on site flow control BMP. The water collected by catch basins will
be routed by an existing pipe network to a previously approved combined detention/water quality
facility designed to handle runoff from a previously constructed roadway and additional 39 townhomes
over an area of approximately 5.97 acres. The water that sheet flows to the flow control BMP will filter
through soil media into a 4” perforated pipe, where it is then routed to an existing storm sewer within
the public right-of-way and outlets to the same wetland as the previously approved detention/water
quality pond. The discharge elevation at both the existing pipe network and public storm sewer will
encourage positive flow away from the site.
Water traveling to the proposed flow control BMP is subject to section 1.2.3.2.E of the City of Renton
Amendments to the King County Surface Water Design Manual because the stormwater is proposed to
bypass the previously approved detention/water quality facility. These requirements include:
1. The point of convergence for runoff discharged from the bypassed target surfaces and from the
project’s flow control facility must be within a quarter-mile downstream of the facility’s project
site discharge point.
2. The increase in existing site conditions 100-year peak discharge from the area of bypassed
target surfaces must not exceed 0.4 cfs.
3. Runoff from the bypassed target surfaces must not create a significant adverse impact to
downstream drainage systems, salmonid habitat, or properties as determined by RDSD
4. Water quality requirements applicable to the bypassed target surfaces must be met
5. Compensatory mitigation by a flow control facility must be provided so that the net effect at the
point of convergence downstream is the same with or without the bypass. This mitigation may
be waived if the existing conditions 100-year peak discharge from the area bypassed target
surfaces is increased by no more than 0.1 cfs and flow control BMPs as detailed in Appendix C
are applied to all impervious surfaces within the area of bypassed target surfaces. One or
combination of the following methods may be used to provide compensatory mitigation by a
flow control facility subject to permission/approvals from other parties as deemed necessary by
RDSD:
· Design the projects flow control facility to retrofit an existing offsite flow control
facility as needed to achieve the desired effect at the point of convergence, OR
· Design the projects flow control facility or provide/retrofit an offsite flow
control facility to mitigate an existing developed area (either onsite or offsite)
that has runoff characteristics (i.e., peak flow and volume) equivalent to those
of the bypassed target surfaces but is currently not mitigated or required to be
mitigated to the same flow control performance requirement as the bypassed
targer surfaces. Consideration of an offsite area to be mitigated for must take
into account the likelihood of that area redeveloping in the future. Those areas
determined by the City to have a high likelihood of future redevelopment what
will provide its own mitigation may not be used as compensatory mitigation.
The bypass stormwater resulting from the proposed project meets the above requirements and satisfies
Core Requirement #1. This is because per existing records, the bypass stormwater captured by the flow
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control BMP will be conveyed to an existing pipe network that releases to the same wetland as the
previously approved water quality/detention pond and within a quarter-mile of the previously approved
facilities discharge point. The bypass stormwater will also be subject to the flow control BMP, limiting
the discharge into the existing pipe network located within the right-of-way, and will not create a
significant adverse impact to the downstream systems. The flow control BMP also treats the bypass
stormwater for water quality. This is because the flow control facility is a Rain Garden and the City of
Renton Amendments to the King County Surface Water Design Manual include a Rain Garden as the 9th
option for Basic WQ treatment, satisfying all of the requirements.
Core Requirement #2 Offsite Analysis:
Refer to Section 3 for a Level 1 offsite analysis.
Core Requirement #3 Flow Control:
Although the proposed site currently is draining to an approved detention/water quality facility sized to
handle the runoff generated from our site, we have also implemented an on-site flow control BMP. The
proposed site is subject to the “Large Lot High Impervious Requirements” because the lot is >22,000
square feet and >45% impervious. The proposed lot has approximately 21,331 square feet of impervious
surface which accounts for 66.9% of the total size of the lot. This means the flow control BMP is required
to treat 10% of the total lot. With total lot being 31,863 square feet, we are required to treat 3,189
square feet of impervious surface. The flow control BMP selected was a rain garden sized to treat 4,151
square feet of impervious surface, along with 2,468 square feet of pervious surface.
Core Requirement #4 Conveyance System:
Refer to Section 5 for a conveyance system analysis and design.
Core Requirement #5 Erosion and Sediment Control:
Erosion prevention and sediment control plans have been implemented in the SWPP Plan sheets. These
measures include a construction sequence, inlet protection, silt fences, a stabilized construction
entrance, concrete washout facility, compost filter sock and also defined clearing limits around the
construction site. The plans also include direction relating to dust control, mulching and temporary and
permanent seeding. In the event that the Department of Development and Environmental Services
(DDES) requires a written record be maintained, a standard ESC Maintenance Report shall be kept on
site throughout the duration of construction. An ESC Maintenance Report can be found in Attachment F.
Core Requirement #6 Operations and Maintenance:
Refer to Section 10 for Operations and Maintenance guidelines.
Core Requirement #7 Financial Guarantees and Liability:
No drainage facilities will be constructed as a part of this project.
5
Core Requirement #8 Water Quality
In an effort to maintain the characteristics of the previously approved emergency access easement and
storm system drainage design, the grading of the site was done so the storm water will drain to existing
basins on site. The water would then be carried from the existing catch basins through a pipe network
and be discharged to a previously approved detention/water quality facility sized to treat runoff from an
existing roadway and additional 39 townhomes coving an area of approximately 5.97 acres.
Section 1.2.8.1 of the City of Renton Amendments to the King County Surface Water Design Manual
allows for a site to be reduced from the Enhanced Basic WQ Menu to the Basic WQ Menu if it meets the
criteria listed. The criteria includes no leachable metals are currently used or proposed to be used in
areas of the site exposed to weather, a covenant must be recorded that prohibits future such use of
leachable metals on the site, less than 50% of the runoff draining to the treatment facility is from a
commercial land use with an expected ADT of 100 or more vehicles per 1,000 square feet of gross
building area, or the commercial land use cannot be involved with vehicle repair, maintenance, or sales.
The proposed site meets all the reduction criteria because it is not currently proposing or requiring
leachable metals, a covenant prohibiting the future use of leachable metals on the site shall be
recorded, less than 50% of the runoff draining to the previously approved detention/water quality
facility is from a commercial land use with an expected ADT of 100 or more vehicles per 1,000 square
feet of gross building area, and the proposed site is not involved with vehicle repair, maintenance, or
sales.
The proposed site satisfying all of the reduction criteria reduces the proposed site from being subject to
the Enhanced Basic WQ Menu to the Basic WQ Menu, and will utilize the previously approved
detention/water quality facility to satisfy the Basic WQ Menu requirements.
Special Requirement #1 Other Adopted Area-Specific Requirements
The proposed project is not within a critical drainage area, an area included in an adopted master
drainage plan, basin plan, salmon conservation plan, stormwater compliance plan, flood hazard
reduction plan, lake management plan or shared facility drainage plan.
Special Requirement #2 Flood Hazard Area Delineation:
The proposed site is not adjacent to a flood hazard area for a river, stream, lake, wetland, closed
depression, marine shoreline, or a King County-mapped channel migration zone.
Special Requirement #3 Flood Protection Facilities:
The proposed project will not rely on an existing flood protection facility for protection against hazards
posed by erosion or inundation. The proposed project will not modify or construct a new flood
protection facility.
Special Requirement #4 Source Controls:
The proposed Taco Bell is a commercial building, therefore water quality source controls shall be
implemented. The applicable source controls can be found in Attachment D
6
Special Requirement #5 Oil Control:
The proposed Taco Bell is considered a high use site according to the 2009 King County Surface Water
Design Manual, and therefore the project must treat runoff from the high-use portion of the site using
oil control treatment options located in Chapter 6 of the 2009 King County Surface Water Design
Manual. Due to existing site conditions that limit the options of preferred oil treatment, the proposed
Taco Bell will implement Oil Control Option – 1 Catch Basin Insert throughout the site to mitigate oil
runoff.
Special Requirement #6 Aquifer Protection Area
The proposed Taco Bell falls within Zone 2 of the Aquifer Protection Area. This special requirement
states that a flow control facility may require a liner in accordance with Section 6.2.4 of the City of
Renton Amendments to the King County Surface Water Design Manual. According to 6.2.4, no liner is
required for the proposed rain garden.
Section 3 – Offsite Analysis (Taco Bell Site Specific, by GPD)
Pre-Developed Conditions: Soils in the area are Alderwood soils, which are classified as glacial till. The
existing offsite drainage occurs at the western to northwestern portions of the project location. Water
landing within an existing combination of mulch, wood chip and brush areas along the western portion
of the project are carried to an existing wetland that runs north and south which is also located on the
western portion of the project. Water landing within the existing pavement in the northwestern portion
of the project currently flows down the existing asphalt drive to the existing drainage network located
throughout and within NE 4th Street. The water captured with the existing on-site catch basins is carried
to an existing pipe network located under Whitman Court and released into the approved
detention/water quality facility.
Post Developed Conditions: The proposed project consists of developing the 0.73 acre lot located at the
southwest corner of the NE 4th Street and Whitman Court NE intersection, but does not alter the existing
curb along the western portion of the project. With no curb alterations occurring in these locations, the
existing mulch, wood chip and brush areas will continue to drain to the existing wetland along the
western portion of the project location, identical to pre developed conditions. The water landing within
the northwestern portion of the project will flow down the drive and enter the existing drainage
network located in NE 4th Street, mimicking the pre-developed offside flow. The increase in water
landing within the pavement that will reach the drainage network located in NE 4th Street is negligible
(0.2% of overall project area) due to grading techniques used to maximize flow to the proposed rain
garden and existing on-site catch basins. The water captured within the on-site catch basins is carried to
an existing pipe network located under Whiteman Court and released to the detention/water quality
facility, matching the pre-developed discharge point.
All onsite drainage captured within the project site will be carried to the proposed rain garden or the
existing conveyance systems located at the southern end of the project. The storm water passing
through the rain garden will be conveyed north through a small system of pipes and will outlet into an
existing manhole. The storm water captured by the yard inlet and existing catch basins will be relayed
further south through a pipe network to a previously approved and constructed water quality/detention
pond, independent of the wetland located at the western portion of the project location.
7
See Attachment A for additional Whitman Court development analysis.
Section 4 - Flow Control and Water Quality Facility Analysis and Design (Taco Bell Site Specific, by
GPD)
The proposed Taco Bell lot consists of approximately 67% impervious surface, and is considered a Large
Lot High Impervious Surface according 2009 King County Surface Water Design Manual. This
classification requires the site to treat 10% of the total lot areas stormwater runoff. The site has a total
area of 31,863 square feet, therefore the site is required to treat 3,189 square feet of target impervious
area.
A rain garden was chosen as the flow control BMP and is located in the northwestern portion of the lot.
The rain garden is required to have a minimum water storage volume equivalent to 3 inches of runoff
depth from the impervious surface area. In other words, the minimum storage volume in cubic feet shall
equal 0.25 times the square footage of the impervious surface area required to be treated, resulting in a
minimum water storage volume of 797 cubic feet.
The minimum square footage treatment requirement was accomplished by using curb cuts along the
drive thru and access drive, allowing 4,151 square feet of target impervious area stormwater to sheet
flow into the flow control BMP. It also is required to store 2,468 square feet of the adjacent pervious
surface. Sizing of the rain garden was then calculated to account for not only the target impervious area
draining to the rain garden, but the pervious surfaces surrounding the rain garden as well, totaling a
storage volume of 1,189 cubic feet.
See Attachment B for delineated areas reaching the flow control BMP.
Due to the unique existing conditions and site constraints of this project, it was also requested that a
summary table be provided showing the existing conditions of the site, the previously proposed
drainage area delineations of the site, and the newly proposed drainage area delineations. Please see
Table 1 summarizing the drainage area delineations, as well as Attachment B for the drainage area
delineation maps and calculations.
Table 1
Site Impervious Surface Gravel Wood Chip Pervious Surface Total Area (ac.) Cumulative "C" Tc
Currently Existing 0.418 ac. 0.150 ac. 0.027 ac. 0.136 ac. 0.731 ac. 0.74 6.3 min
Previously Proposed 0.500 ac. 0.000 ac. 0.027 ac. 0.204 ac. 0.731 ac. 0.70 6.3 min
Proposed 0.488 ac. 0.000 ac. 0.027 ac. 0.216 ac. 0.731 ac. 0.69 6.3 min
Section 5 – Conveyance System Analysis and Design (Taco Bell Site Specific, by GPD)
Conveyance system analysis and design of the previously approved and constructed conveyance system
can be found and Attachment A.
A conveyance analysis was performed for proposed pipe located throughout the project site. The pipe
sizing spreadsheet, design calculations and variables, and drainage area delineations are located in
Attachment B. The proposed conveyance system’s parameters are as follows:
8
Backwater was analyzed using a Microsoft Excel spreadsheet, using rational methodology to analyze
each sub-delineation area. The project is not located near a location with an IDF curve table created;
therefore the peak rainfall intensity values were calculated per section 3.2.1 of the 2009 King County
Surface Water Design Manual.
Developed Land Uses Used:
Pavement/Roofs (C=0.90)
Gravel (C=0.80)
Wood Chip (C=0.30)
Lawns (C=0.25)
Rainfall Data Used:
25 Year: 3.42 inches
100 Year: 3.90 inches
Time of Concentration:
Time of concentration is set at the 2009 King County Surface Water Design Manual minimum of
6.3 minutes to add conservatism to the system design.
The System was designed to convey the 100 year storm with no capacity or backwater issues. This was
done to determine that no flooding or backwater would occur.
Section 6 – Special Reports and Studies (Refer to ESM Consulting TIR)
See Section 6 of Attachment A for the previously approved Special Reports and Studies information
prepared by ESM Consulting Engineers, LLC dated December 1, 2014.
Section 7 – Other Permits (Refer to ESM Consulting TIR)
See Section 7 of Attachment A for the previously approved Other Permits information prepared by
ESM Consulting Engineers, LLC dated December 1, 2014.
Section 8 – CSWPPP Analysis and Design (Refer to ESM Consulting TIR)
In an effort to minimize contaminants leaving the job site, a SWPP Plan sheet as well as notes and detail
sheets are a part of the construction plans. These measures include a construction sequence, inlet
protection, silt fences, a stabilized construction entrance, concrete washout facility, compost filter sock
and also defined clearing limits around the construction site. The plans also include direction relating to
dust control, mulching and temporary and permanent seeding. In the event that the Department of
Development and Environmental Services (DDES) requires a written record be maintained, a standard
ESC Maintenance Report shall be kept on site throughout the duration of construction. An ESC
Maintenance Report can be found in Attachment F.
Section 9 – Bond Quantities, Facility Summaries, and Declaration of Covenant (Refer to ESM
Consulting TIR)
See Section 9 of Attachment A for the previously approved Facility Summaries, and Declaration of
Covenant information prepared by ESM Consulting Engineers, LLC dated December 1, 2014.
9
See Attachment E for the City of Renton Bond Quantities Worksheet.
Section 10 – Operations and Maintenance Manual (Taco Bell Site Specific, by GPD)
The Operations and Maintenance Manual can be located in Attachment C.
Attachment A
Attachment B
Page 1 of 1Date: Date: Project Name: 25 0.009 for HDPE pipeProject Number: 100xxxx Denotes Water Surface Elevation Governs Sheet No. 1of11 2 3 7 10 11 12 13 14 15 16 17 18 19 20MH, CB, IB or HDWDelineation Color SideRunoff Coef.Size of Pipe (in.)Length (ft.)Slope (%)Invert at StructureInvert at Next Downstream StructureMean Velocity (ft/sec)Just Full CapacityRim ElevationFriction SlopeHead Loss (ft.)Elevation of Hydraulic GradientNo.AAtCtCi25i100CCACAQ25Q100L S Feet FeetVmcfs FeetsfH FeetSTM-103 Green 0.05 6.3 6.3 2.75 3.19 0.42 0.02 0.06 0.06 12 66 1.80 387.85 386.68 1.90 6.90 390.85 0.0000 0.0000388.16452016088.28Column 7 x Column 4Mannings "n"Year H.G.Just Full Capacity 25 Year Frequency Taco Bell - Renton9Discharge in cfs (Column 6 x Column 8)Year DesignDrainage Area (acres)Time of Concentration (min.)Rainfall (inches/hour)6/15/2017IDF Distribution for King County, WashingtonHydraulic Gradient 100 Year Frequency8STORM SEWER COMPUTATION SHEET (TRADITIONAL DESIGN - FOR PERV PVMT OVERFLOW BACKUP ONLY)Calculated by: JWChecked by: 6O:\2016\2016088\28 - Renton, WA\Dwg\Construction Documents\Civil\SWM\Pipe Sizing Calcs.xls
C
0.10
0.15
0.20
0.25
0.30
0.80
0.90
1.00
aR bR
1.58 0.58
2.44 0.64
2.66 0.65
2.61 0.63
kR
2.5
4.7
7.0
10.1
15.0
20.0
Forest w/ heavy ground litter & meadow
10 Years
25 Years
100 Years
Land Cover Category
Runoff Coefficients ‐ "C" Values for the Rational Method
Coefficients for the Rational Method "iR" Equation
Design Storm Return Frequency
2 Years
Open Water
General Land Covers
Land Cover
Dense Forest
Light Forest
Pasture
Lawns
Paved area and shallow gutter flow
kR Values for Tt Using the Rational Method
Fallow or minimum tillage cultivation
Short grass pasture and lawns
Nearly bare ground
Grassed waterway
Playgrounds
Gravel Areas
Pavement/Roofs
2.00
2.90
3.42
3.90
Return Period Rainfall Intensities
Return Period PR
2 Year
10 Year
25 Year
100 Year
C Area (ac.) C Area (ac.)
0.90 0.500 0.90 0.488
0.80 0.000 0.80 0.000
0.30 0.027 0.30 0.027
0.25 0.204 0.25 0.216
Runoff Coefficient Calculations
Proposed
Land Cover
Pavement
Gravel
Wood Chip
Lawns
Total Acreage
Land Cover
Pavement
Gravel
Wood Chip
Lawns
0.731
Previously Proposed
Time of Concentration Calculations
Previously Proposed Proposed
Length T1 (ft)
Runoff Coefficient 0.69
Total Acreage 0.731
Runoff Coefficient 0.70
Length T2 (ft)
0.37
47
Length T1 (ft)45
Slope T1 (ft/ft)0.035
KR T1 4.7
T1 Total (min)0.85
Tused (min)6.3
Slope T1 (ft/ft)
KR T1
29
0.077
4.7
T1 Total (min)
Peak Rainfall Intensity Calculations
TT (t1+T2)
Tused (min)
20.0
0.34
0.71
6.3
Slope T2 (ft/ft)0.013
KR T2
T2 Total (min)
1.09
2.18
2.75
3.19
Previously Proposed Proposed
Return Frequency IR
2 Year
Return Frequency IR
2 Year 1.09
10 Year 2.18
25 Year 2.75
100 Year 3.19
10 Year
25 Year
100 Year
Peak Flow Calculation
Previously Proposed Proposed
Return Frequency
2 Year
Return Frequency
2 Year
10 Year
25 Year
100 Year
QR (cfs)
0.54
1.09
1.38
1.60
10 Year
25 Year
100 Year
QR (cfs)
0.55
1.11
1.40
1.63
R/WR/WR/WR/WR/WR/WR/W ST ST ST ST ST ST ST ST ST ST ST ST ST ST
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NE 4TH STREET WHITMAN CT. NE (53 FEET WIDE)(WIDTH VARIES)
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VASHON CT NEVASHON CT NEww
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STP/LEXISTING STREAMCONTRACT DATE:
BUILDING TYPE:
PLAN VERSION:
SITE NUMBER:
STORE NUMBER:
TACO BELL
4225 NE 4TH STREET
RENTON, WA 98059
CALIF SOL
04.05.17
CALIF SOL
MED40
312178/441895
2016088.28
520 South Main Street, Suite 2531
Akron, OH 44311
330.572.2100 Fax: 330.572.2102
CURRENTLY
EXISTING
DRAINAGE MAP
1 of 4
LEGEND
(SEE SHEET C-001 FOR GENERAL LEGEND)
0
40
20
10
1"=20'
Horizontal Scale in Feet
EXISTING GRAVEL
C = 0.80
A = 0.150 AC
EXISTING PAVEMENT
C = 0.90
A = 0.418 AC
EXISTING VEGETATION
C = 0.25
A = 0.136 AC
EXISTING WOOD CHIP
C = 0.30
A = 0.027 AC
EXISTING DRAINAGE AREA TOTALS
C = 0.74
A = 0.731 AC
Tc = 6.3 MIN
TIME OF CONCENTRATION
ROUTE, Tc = 6.3 MIN
R/WR/WR/WR/WR/WR/WR/W ST ST ST ST ST ST ST ST ST ST ST ST ST ST
STSTSTSTSTSTSTSTSTSTST
STSTSTSTSTSTSTE E E
E
E
EP/LEEEEEP/L P/L P/LP/
LP/
LP/LP/LR/W
st
w
sn
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wwwww
ww
w
ww
w
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t
t
w
st
st
st
C
w
NE 4TH STREET WHITMAN CT. NE (53 FEET WIDE)(WIDTH VARIES)
w
VASHON CT NEVASHON CT NEww
P/L
P/LP/LP/LP/LP/L
P/L R/WR/WR/WR/WR/Wco
co
co
S
T
S
T
S
T
STP/LEXISTING STREAMCONTRACT DATE:
BUILDING TYPE:
PLAN VERSION:
SITE NUMBER:
STORE NUMBER:
TACO BELL
4225 NE 4TH STREET
RENTON, WA 98059
CALIF SOL
04.05.17
CALIF SOL
MED40
312178/441895
2016088.28
520 South Main Street, Suite 2531
Akron, OH 44311
330.572.2100 Fax: 330.572.2102
PREVIOUSLY
PROPOSED
DRAINAGE MAP
2 of 4
LEGEND
(SEE SHEET C-001 FOR GENERAL LEGEND)
0
40
20
10
1"=20'
Horizontal Scale in Feet
PREBIOUSLY PROPOSED IMPERVIOUS
C = 0.90
A = 0.500 AC
PREVIOUSLY PROPOSED VEGETATION
C = 0.25
A = 0.204 AC
PREVIOUSLY PROPOSED WOOD CHIP
C = 0.30
A = 0.027 AC
PREVIOUSLY PROPOSED DRAINAGE AREA TOTALS
C = 0.70
A = 0.731 AC
Tc = 6.3 MIN
R/WR/WR/WR/WR/WR/WR/W ST ST ST ST ST ST ST ST ST ST ST ST ST ST
STSTSTSTSTSTSTSTSTSTST
STSTSTSTSTSTSTE E E
E
GASGASGASGASGASGASGASGAS
GASGASGASGASGASGASE
EP/LEEEEEP/L P/L P/LP/
LP/
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NE 4TH STREET WHITMAN CT. NE (53 FEET WIDE)(WIDTH VARIES)
w
VASHON CT NEVASHON CT NEww
P/L
P/LP/LP/LP/LP/L
P/L R/WR/WR/WR/WR/Wco
S
T
S
T
S
T
STg392
P/LEXISTING STREAMSTSTSTST
391
390
392393392
391392
392391391392391393 394392
391
393
392
3
9
2
w
w
w
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CONTRACT DATE:
BUILDING TYPE:
PLAN VERSION:
SITE NUMBER:
STORE NUMBER:
TACO BELL
4225 NE 4TH STREET
RENTON, WA 98059
CALIF SOL
04.05.17
CALIF SOL
MED40
312178/441895
2016088.28
520 South Main Street, Suite 2531
Akron, OH 44311
330.572.2100 Fax: 330.572.2102
PROPOSED
DRAINAGE
MAP
3 of 4
LEGEND
(SEE SHEET C-001 FOR GENERAL LEGEND)
0
40
20
10
1"=20'
Horizontal Scale in Feet
PROPOSED IMPERVIOUS
C = 0.90
A = 0.488 AC
PROPOSED VEGETATION
C = 0.25
A = 0.216 AC
PROPOSED WOOD CHIP
C = 0.30
A = 0.027 AC
PROPOSED DRAINAGE AREA TOTALS
C = 0.69
A = 0.731 AC
Tc = 6.3 MIN
TIME OF CONCENTRATION
ROUTE, Tc = 6.3 MIN
R/WR/WR/WR/WR/WR/WR/W ST ST ST ST ST ST ST ST ST ST ST ST ST ST
STSTSTSTSTSTSTSTSTSTST
STSTSTSTSTSTSTE E E
E
E
EP/LEEEEEP/L P/L P/LP/
LP/
LP/LP/LR/W
st
w
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ww
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w
J J J J
J
J
J
JJ
JJ
J
J
stst
sn
sn
sn
w
t
t
w
g g g
st
st
st
C
w
NE 4TH STREET WHITMAN CT. NE (53 FEET WIDE)(WIDTH VARIES)
w
VASHON CT NEVASHON CT NEww
P/L
P/LP/LP/LP/LP/L
P/L
2 136547
1
11 STOPDRIVE-THRU18
10 R/WR/WR/WR/WR/Wco
co
co
S
T
S
T
S
T
STg
DO
N
O
T
E
N
T
E
R 392P/LEXISTING STREAMSTSTSTST
391
390
392393392
391YIELD392
392391391392391393 394392
391
393
392
3
9
2
6 7
w
w
w
w
1415
GASGASGASGAS
392
392CONTRACT DATE:
BUILDING TYPE:
PLAN VERSION:
SITE NUMBER:
STORE NUMBER:
TACO BELL
4225 NE 4TH STREET
RENTON, WA 98059
CALIF SOL
04.05.17
CALIF SOL
MED40
312178/441895
2016088.28
520 South Main Street, Suite 2531
Akron, OH 44311
330.572.2100 Fax: 330.572.2102
BMP & PIPE
SIZING EXHIBIT
4 of 4
LEGEND
0
40
20
10
1"=20'
Horizontal Scale in Feet
PERVIOUS AREA DRAINING TO
BIORETENTION = 2,468 SQUARE FEET
STM-103 PIPE SIZNG
C = 0.42
A = 0.046 AC
IMPERVIOUS AREA DRAINING TO
BIORETENTION = 4,151 SQUARE FEET
Attachment C
Attachment D
Please reference the following sheets for the required source controls per the 2016 King County
Stormwater Pollution Prevention Manual.
Stormwater Pollution Prevention Manual • King County 27
A-1 Required Best Management Practices for all Properties with Commercial Activities
The following Best Management Practices (BMPs) are required for all commercial, industrial,
agricultural, public, or residential properties with commercial activities in unincorporated King County.
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
Clean and Maintain Storm Drainage System
• Evaluate the condition of the catch basin by checking the amount of sediment in the bottom of the sump.
Catch basins must be cleaned out when the solids, trash, and debris in the sump reaches one–half of the
depth between the bottom of the sump and the bottom of the lowest inflow or outflow pipe connected to
the catch basin or is at least 6 inches below this point.
• Hire a professional drainage contractor to inspect and maintain your system or clean the system yourself. If
there is sediment or other debris in the drainage pipes, then a professional contractor must be hired to flush
or jet out the pipes.
• Small amounts of floating oil can be soaked up with oil absorbent pads, bagged and disposed of as solid
waste.
• Up to one cubic yard of nonhazardous solid material may be disposed of as solid waste in your regular
garbage. If you exceed this threshold hire a professional drainage contractor. All of the solids and stagnant
water collected from catch basin sumps must be disposed of properly. None of the sump contents can
be flushed into the catch basin outflow pipe. Depending on the nature of the pollutants in the sump, and
the associated types of activities taking place on the site, the sump contents may need to be handled
as contaminated waste. Contractors who perform catch basin clean–out services are required to follow
appropriate disposal requirements.
• Clean and maintain catch basins annually. Sites with activities generating a lot of sediments and other debris
will have to inspect and clean out their catch basins more often. Frequent sweeping of paved parking and
storage areas will save time and money in maintaining the drainage system.
• Other components of drainage systems such as ponds, tanks, and bioswales must also be maintained. If this
maintenance is beyond your ability, contractors are available to complete this work.
Label All Storm Drain Inlets on Your Property
• Stencil or apply storm drain markers adjacent to storm drains to help prevent the improper disposal of
pollutants. If the storm drain grate is stamped with warnings against polluting, then additional marking may
not be required if there is no evidence of pollutants being dumped or washed into the storm drain.
Stormwater Pollution Prevention Manual • King County28
Eliminate Illicit Connections to the Storm Drainage System
• Connections to the storm drainage system that convey substances other than stormwater are prohibited.
Examples are connections from internal floor drains, HVAC systems, industrial processes, sinks, and toilets.
• Illicit connections must be immediately removed, permanently plugged or re–plumbed.
• The discharge must be re–plumbed so that it goes to the sanitary sewer, a septic system, an on–site
treatment system, or a holding tank for off–site disposal. There are restrictions on what can be disposed of
to the sanitary sewer and septic systems. You may be required to do additional investigation to determine
where all stormwater and non–stormwater discharges go. This may include smoke, dye, and chemical
testing or closed circuit television inspection.
Additional Information:
• Drainage System Maintenance Contractors Information Sheet
• For stencils and instructions or to determine if you have an illicit connection, contact King County
Stormwater Services at 206–477–4811 or kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County 35
A-8 Storage or Solid and Food Wastes (Including Cooking Grease)
This refers to garbage dumpsters and outdoor waste containers such as cooking oil/grease receptacles.
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
• Store wastes in leak–proof containers with solid lids.
• Keep dumpsters closed except when adding waste.
• Used cooking oil/grease containers should be labeled with their contents.
• Clean up any spills immediately using dry methods. Grease cannot be left on the ground.
• Have spill cleanup materials nearby.
• Use a lid or cover when transporting cooking oil/grease containers from kitchens to outside grease
containers.
• Ensure that drip pans or absorbent materials are used whenever grease containers are emptied by vacuum
trucks or other means.
• Dispose of collected cooking oil/grease as garbage if it is not being recycled. Do not dispose of fats, oils or
grease (FOG) into the sanitary sewer or septic system.
Required Routine Maintenance:
• Keep the area around the grease container clean and free of debris.
• Check storage containers frequently for leaks and to ensure that lids are on securely.
• Replace leaking or damaged containers. Contact waste hauler for replacements.
• Sweep and clean the storage area as needed if it is paved. Do not hose down waste storage areas.
• When cleaning or rinsing waste containers, dispose of all wastewater into a sanitary sewer. If no sewer is
available, store in a holding tank, dead end sump, or truck off site to an approved disposal location.
Additional Information:
• Disposal Information Sheet
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County 39
A-12 Cleaning or Washing of Food Service Areas and Equipment
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here are
not enough to prevent contamination of stormwater, you will be required to take additional measures.
Required BMPs:
• The cleaning of cooking equipment, filter screens, floor mats etc. must be done indoors.
• All wash and rinse water must be discharged to the sanitary sewer or the septic system.
• Floor mop water must not be poured outside. Instead pour it into a sink or toilet.
• Wash and rinse water containing fats, oils or grease (FOG) may require pretreatment to remove FOG prior to
disposal to the sanitary sewer or septic system.
• Do not dispose of wash or rinse waster containing floor stripping or disinfectant chemicals into the septic
system as they can seriously inhibit wastewater treatment and cause the system to fail.
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County50
A-20 Concrete and Asphalt Application
This applies to sites where asphalt is applied or small amounts of concrete that is hand mixed on site.
The application of premixed concrete must follow the standards in the King County Surface Water
Design Manual.
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here are
not enough to prevent contamination of stormwater, you will be required to take additional measures.
Required Best Management Practices (BMPs):
• Use drip pans, ground cloths, heavy cardboard or plywood wherever concrete, asphalt, asphalt emulsion and
drips are likely to spill, such as beneath discharge points from equipment.
• Cover and contain all nearby storm drains at the beginning of the workday. Drain covers and other
containment devices are commercially available to keep runoff out of the storm drainage system. All solids
collected must be disposed of properly at the end of the workday (or more frequently) prior to removing the
containment or cover device(s).
• Contain and collect the slurry from exposed aggregate washing. Never allow the slurry to get into a storm
drain, ditch, roadway shoulder or gutter. Use a storm drain cover, inlet protection or other containment
device, such as a hand–dug, lined sump to direct and contain slurry. All collected runoff must be disposed of
properly.
• Do not discharge concrete, slurry, or rinse water into gutters, storm drains, or drainage ditches or onto the
paved surface of a roadway or driveway.
• Designate an area onsite where hand tools will be cleaned and the water collected for disposal. Commercial
products and services are also available for concrete, slurry, and rinse water containment and disposal.
• Do not use diesel fuel for cleaning or prepping asphalt tools and equipment.
Required Routine Maintenance:
• Sweep the pouring area at the end of the job or more frequently if needed. Collect loose aggregate chunks
and dust. Do not hose down the area to a storm drain.
Supplemental BMPs:
• A catch basin insert may be necessary for sediment removal. Catch basin inserts require frequent
maintenance to be effective.
Additional Information:
• Covering Information Sheet
• Containment Information Sheet
• Disposal Information Sheet
• Catch Basin Insert Information Sheet
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
• King County Surface Water Design Manual
Appendix D – Concrete Handling
• King County Surface Water Design Manual
Appendix D – Concrete Washout Area
Stormwater Pollution Prevention Manual • King County56
A-26 Landscaping Activities and Vegetation Management
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
• Train employees on the proper use and application of fertilizers and pesticides.
• Never apply pesticides and fertilizers if it is raining or about to rain.
• Do not apply pesticides within 100 feet of surface waters such as lakes, ponds, wetlands, streams, and
stormwater conveyance ditches unless the application is approved and permitted by the Washington State
Department of Ecology.
• Determine the proper fertilizer application for the types of soil and vegetation involved. Follow
manufacturers’ recommendations and label directions.
• Clean up any spills immediately.
• Remove weeds/vegetation in stormwater ditches by hand or other mechanical means and only use
chemicals as a last resort.
• Do not blow vegetation or other debris into the storm drain system, sidewalks, or street. Dispose of collected
vegetation by recycling or composting.
• Use mulch or other erosion control measures when soils are exposed for more than one week during the dry
season or two days during the rainy season.
• Ensure sprinkler systems do not “overspray” vegetated areas resulting in the excess water discharging into
the storm drain system.
• New and expanding golf courses must have a Golf Course Management Plan as described in addressed in
the King County Golf Course BMP Manual
Supplemental BMPs:
• Use integrated pest management (IPM); a comprehensive approach to the use of pesticides is the most
effective BMP measure that can be taken for herbicide, insecticide, and fungicide use.
• Test soils to determine the correct fertilizer application rates.
• Use mechanical methods of vegetation removal rather than applying herbicides.
• Use native plants in landscaping. Native plants do not require extensive fertilizer or pesticide applications.
Stormwater Pollution Prevention Manual • King County60
A-29 Building Repair, Remodeling, and Construction
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
• Do not dump any substance, wash water or liquid waste on the pavement or ground.
• Use drop cloths when painting, scraping, and sandblasting and properly dispose of collected material daily.
• Use a drop cloth, drip pan, or tub for activities such as paint mixing and tool cleaning.
• Clean paint brushes and tools covered with water–based paints in sinks connected to sanitary sewers or
in portable containers that can be dumped into a sanitary sewer. Brushes and tools covered with non–
water–based paints, finishes, or other materials must be cleaned in a manner that enables collection of used
solvents (e.g., paint thinner, turpentine, etc.) for recycling or proper disposal. Solvents may not be disposed
of to the sanitary sewer. Never dispose of any wash water to a storm drain.
• Use a storm drain cover, filter fabric, or other runoff control mechanism if dust, grit, wash water, or other
pollutants may escape the work area. Check runoff control mechanisms daily, and replace as necessary. Drain
covers, filter fabric, and other containment devices are commercially available if effective runoff control
cannot otherwise be provided.
• Cover trash bins and dumpsters and ensure they are not leaking.
• Follow Appendix D of the King County Surface Water Design Manual, “Erosion and Sediment Control
Measures” for dewatering activities.
Required Routine Maintenance:
• Keep spill cleanup materials in a common location on–site. Ensure that employees are familiar with proper
spill cleanup procedures.
• Sweep paved areas to collect loose particles for proper disposal. Wipe up spills with rags or other absorbent
material immediately. Do not hose down the area to a storm drain.
• Store hazardous materials under cover, using items such as tarps or other temporary cover materials.
Supplemental BMPs:
• Recycle or reuse leftover materials.
• Install catch basin inserts to collect excess sediment and debris if necessary. Inspect and maintain catch
basin inserts to ensure they are working correctly.
• Install temporary wheel wash facilities if track out occurs.
Stormwater Pollution Prevention Manual • King County 63
A-31 Vehicle and Equipment Parking and Storage
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
• Sweep parking lots, storage areas, and driveways as needed to collect dirt, waste, and debris. Do not hose
down the area to the storm drainage system.
• Clean up vehicle and equipment fluid drips and spills immediately.
• Place drip pans below inoperative or leaking vehicles and equipment, including employee vehicles.
• Collect and discharge wash water to a sanitary sewer or haul for offsite disposal if washing/pressure washing
of the parking lot occurs. There are businesses that will clean parking lots and collect water for off–site
disposal. Never drain wash water to the storm drainage system.
• Follow basic sediment controls as outlined in Appendix D (“Erosion and Sediment Control Standards”) of the
King County Surface Water Design Manual for gravel and dirt lots. These types of parking lots may require
additional BMPs to prevent sediment laden water from leaving your site.
Supplemental BMPs:
• Encourage employees to repair leaking personal vehicles.
• Encourage employees to carpool or use public transit through incentives.
• Encourage customers to use public transit by rewarding valid transit pass holders with discounts.
• Install catch basin inserts to collect excess sediment and oil if necessary. Inspect and maintain catch basin
inserts to ensure they are working correctly.
Additional Information:
• Disposal Information Sheet
• Catch Basin Insert Information Sheet
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County64
A-32 Sidewalk Maintenance
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here are
not enough to prevent contamination of stormwater, you will be required to take additional measures.
Required BMPs:
• Sweep sidewalks as needed to collect loose dirt and debris rather than blowing or pushing it into the street
or gutter or hosing it down. Collected materials must be disposed of as solid waste.
• Clean individual stains instead of washing the entire sidewalk if possible.
• Collect wash water and dispose of into the sanitary sewer or take off site for appropriate disposal if soaps or
other cleaners are used. If only water is used, install a catch basin insert or filter cloth in order to collect all
solids and debris.
• Use a minimum amount of sand or deicing salts and sweep up any remaining granules when the snow and
ice have melted.
Additional Information:
• Disposal Information Sheet
• Storage of Liquid Materials in Portable Containers – See Activity Sheet A-3
• Containment Information Sheet
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County74
A-41 Wheel Wash and Tire Bath Track Out Control
This activity applies to commercial and industrial operations where materials may be tracked off the
property. If a rocked construction–type entrance for unpaved site, or routine sweeping/vacuuming of
paved site, does not control mud and sediment track out; a wheel wash system must be installed.
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required Best Management Practices (BMPs):
• Install a portable wheel wash system
OR
• Permanent wheel wash system as described in Appendix D, Chapter D.3.4.3 of the King County Surface Water
Design Manual
Required Routine Maintenance:
• Change water as necessary. Dispose of wheel wash water to appropriate disposal location.
• Maintain the appropriate level of water per design.
Additional Information:
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County 75
A-42 Potable Water Line Flushing, Water Tank Maintenance and Hydrant Testing
Chemicals used in line flushing and tank maintenance are highly toxic to aquatic organisms and can
degrade receiving waters
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here are
not enough to prevent contamination of stormwater, you will be required to take additional measures.
Required BMPs:
• Discharge water to the sanitary sewer if super chlorination or chemical treatment is used as part of flushing.
If sanitary sewer is not available, the water may be infiltrated to the ground as long as it is dechlorinated to a
total residual chlorine concentration of 0.1 ppm or less and water quality standards are met, a diffuser is used
to prevent erosion, and the water does not cross property lines.
• Discharging water (chlorinated or dechlorinated) to a stormwater drainage system requires approval from
King County Water and Land Resources (WLRD). The water must be dechlorinated to a total residual chlorine
concentration of 0.1 ppm or less and pH adjusted if necessary. Water must be volumetrically and velocity
controlled to prevent resuspension of sediments in the MS4. Contact WLRD for approval.
Additional Information:
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Stormwater Pollution Prevention Manual • King County76
A-44 Dust Control for Commercial Operations
This activity applies to existing manufacturing and commercial operations as opposed to new
construction or land development. Material handling activities may include concrete crushing, cement
mixing, commercial composting, stone grinding, and wood milling.
Best Management Practices (BMPs) are required by King County Code 9.12. If the BMPs included here
are not enough to prevent contamination of stormwater, you will be required to take additional
measures.
Required BMPs:
• Sweep paved areas where dust and erodible materials accumulate. Use vacuum sweepers to minimize
generation of airborne dust and for more efficient dust removal.
• Clean equipment and vehicles that leave the property to prevent dust and track out of material. Create a
designated wash area to collect and properly dispose of the wash water. Never wash down equipment or
vehicles to the storm drainage system.
• Train employees in the proper operating procedures to minimize dust accumulation.
Supplemental BMPs–if the Above are Not Sufficient:
• Use dust filtration and collection systems such as bag house filters.
• Use water spray to flush dust accumulations to an approved treatment system or the sanitary sewer where
available and allowed by the local sewer authority and the King County Industrial Waste Program.
• Use approved dust suppressants such as those listed in the King County Surface Water Design Manual,
Appendix D, Erosion and Sediment Control Standards.
• When pH levels in stormwater rise above 8.5, the pH must be adjusted to the acceptable range of 6.5 to
8.5. Refer to the King County Surface Water Design Manual Appendix D Sections D.2.2.7 and D.2.2.8 for
information on pH adjustment.
Additional Information:
• Department of Ecology Publication “Techniques for Dust Prevention and Suppression,” #96–433. Please note
that not all dust suppressants are appropriate for use near storm drainage systems or surface waters.
• Contact Puget Sound Clean Air Agency and/or the Washington State Department of Ecology for air pollution
control regulations.
For more information or assistance contact the King County Stormwater Services at 206–477–4811 and
visit kingcounty.gov/stormwater.
Attachment E
Planning Division |1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430‐7200Date Prepared: Name:PE Registration No:Firm Name:Firm Address:Phone No.Email Address:Project Name: Project Owner:CED Plan # (LUA): Phone:CED Permit # (U):Address: Site Address:Street Intersection: Addt'l Project Owner:Parcel #(s): Phone:Address: Clearing and grading greater than or equal to 5,000 board feet of timber? Yes/No:NOWater Service Provided by:If Yes, Provide Forest Practice Permit #:Sewer Service Provided by: SITE IMPROVEMENT BOND QUANTITY WORKSHEETPROJECT INFORMATIONCITY OF RENTONCITY OF RENTON1 Select the current project status/phase from the following options: For Approval ‐ Preliminary Data Enclosed, pending approval from the City; For Construction ‐ Estimated Data Enclosed, Plans have been approved for contruction by the City; Project Closeout ‐ Final Costs and Quantities Enclosed for Project Close‐out SubmittalEngineer Stamp Required (all cost estimates must have original wet stamp and signature)Clearing and Grading Utility ProvidersN/AProject Location and Description Project Owner InformationImprovement Plans Taco BellIrvine, CA 926189374000400Taco Bell Corp. ‐ Steve Pulcheon17‐000288 949‐863‐386410/9/2017Prepared by:FOR APPROVALProject Phase 1jwhite@gpdgroup.comDarrin KoteckiGPD Group520 S Main Street, Suite 2531, Akron, Oh 44311330‐572‐21004225 NE 4th Street, Renton Washington1 Glen Bell Way, MD #534NE 4th Street/Whitman CourtTBDAbbreviated Legal Description:Lot 40, Whitman Court, recorded in volume 273 of plats, pages 19 through 25, in King County, Washington. The property descirbed is the same property as described in the Chicago Title Company of Washington commitment for title insurance number 0080346‐06 datedSeptember262016Page 2 of 14Ref 8‐H Bond Quantity WorksheetSECTION I PROJECT INFORMATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDUnitReference # Price Unit Quantity CostBackfill & compaction‐embankmentESC‐16.50$ CYCheck dams, 4" minus rockESC‐2SWDM 5.4.6.380.00$ EachCatch Basin ProtectionESC‐335.50$ Each 10355.00Crushed surfacing 1 1/4" minusESC‐4WSDOT 9‐03.9(3)95.00$ CYDitchingESC‐59.00$ CYExcavation‐bulkESC‐62.00$ CYFence, siltESC‐7SWDM 5.4.3.11.50$ LF 583874.50Fence, Temporary (NGPE)ESC‐81.50$ LFGeotextile FabricESC‐92.50$ SYHay Bale Silt TrapESC‐100.50$ EachHydroseedingESC‐11SWDM 5.4.2.40.80$ SYInterceptor Swale / DikeESC‐121.00$ LFJute MeshESC‐13SWDM 5.4.2.23.50$ SYLevel SpreaderESC‐141.75$ LFMulch, by hand, straw, 3" deepESC‐15SWDM 5.4.2.12.50$ SYMulch, by machine, straw, 2" deepESC‐16SWDM 5.4.2.12.00$ SYPiping, temporary, CPP, 6"ESC‐1712.00$ LFPiping, temporary, CPP, 8"ESC‐1814.00$ LFPiping, temporary, CPP, 12"ESC‐1918.00$ LFPlastic covering, 6mm thick, sandbaggedESC‐20SWDM 5.4.2.34.00$ SYRip Rap, machine placed; slopesESC‐21WSDOT 9‐13.1(2)45.00$ CYRock Construction Entrance, 50'x15'x1'ESC‐22SWDM 5.4.4.11,800.00$ EachRock Construction Entrance, 100'x15'x1'ESC‐23SWDM 5.4.4.13,200.00$ Each 13,200.00Sediment pond riser assemblyESC‐24SWDM 5.4.5.22,200.00$ EachSediment trap, 5' high berm ESC‐25SWDM 5.4.5.119.00$ LFSed. trap, 5' high, riprapped spillway berm section ESC‐26SWDM 5.4.5.170.00$ LFSeeding, by handESC‐27SWDM 5.4.2.41.00$ SY 908908.00Sodding, 1" deep, level groundESC‐28SWDM 5.4.2.58.00$ SYSodding, 1" deep, sloped groundESC‐29SWDM 5.4.2.510.00$ SYTESC SupervisorESC‐30110.00$ HRWater truck, dust controlESC‐31SWDM 5.4.7140.00$ HR 243,360.00UnitReference # Price Unit Quantity CostEROSION/SEDIMENT SUBTOTAL: 8,697.50SALES TAX @ 10% 869.75EROSION/SEDIMENT TOTAL: 9,567.25(A)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR EROSION & SEDIMENT CONTROLDescription No.(A)WRITE‐IN‐ITEMS Page 3 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.a EROSION_CONTROLUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostGENERAL ITEMS Backfill & Compaction‐ embankment GI‐16.00$ CY 150900.00Backfill & Compaction‐ trench GI‐29.00$ CYClear/Remove Brush, by hand (SY) GI‐31.00$ SYBollards ‐ fixed GI‐4 240.74$ Each 51,203.70Bollards ‐ removable GI‐5 452.34$ EachClearing/Grubbing/Tree Removal GI‐6 10,000.00$ AcreExcavation ‐ bulk GI‐72.00$ CY 200400.00Excavation ‐ Trench GI‐85.00$ CYFencing, cedar, 6' high GI‐9 20.00$ LFFencing, chain link, 4' GI‐10 38.31$ LFFencing, chain link, vinyl coated, 6' high GI‐11 20.00$ LFFencing, chain link, gate, vinyl coated, 20' GI‐12 1,400.00$ EachFill & compact ‐ common barrow GI‐13 25.00$ CYFill & compact ‐ gravel base GI‐14 27.00$ CY 3008,100.00Fill & compact ‐ screened topsoil GI‐15 39.00$ CYGabion, 12" deep, stone filled mesh GI‐16 65.00$ SYGabion, 18" deep, stone filled mesh GI‐17 90.00$ SYGabion, 36" deep, stone filled mesh GI‐18 150.00$ SYGrading, fine, by hand GI‐19 2.50$ SYGrading, fine, with grader GI‐20 2.00$ SY 9331,866.00Monuments, 3' Long GI‐21 250.00$ EachSensitive Areas Sign GI‐22 7.00$ EachSodding, 1" deep, sloped ground GI‐23 8.00$ SYSurveying, line & grade GI‐24 850.00$ DaySurveying, lot location/lines GI‐25 1,800.00$ AcreTopsoil Type A (imported) GI‐26 28.50$ CYTraffic control crew ( 2 flaggers )GI‐27 120.00$ HRTrail, 4" chipped wood GI‐28 8.00$ SYTrail, 4" crushed cinder GI‐29 9.00$ SYTrail, 4" top course GI‐30 12.00$ SYConduit, 2" GI‐31 5.00$ LFWall, retaining, concrete GI‐32 55.00$ SFWall, rockery GI‐33 15.00$ SFSUBTOTAL THIS PAGE:12,469.70(B)(C)(D)(E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B) (C)Page 4 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B) (C)ROAD IMPROVEMENT/PAVEMENT/SURFACINGAC Grinding, 4' wide machine < 1000sy RI‐1 30.00$ SYAC Grinding, 4' wide machine 1000‐2000sy RI‐2 16.00$ SYAC Grinding, 4' wide machine > 2000sy RI‐3 10.00$ SYAC Removal/Disposal RI‐4 35.00$ SYBarricade, Type III ( Permanent )RI‐5 56.00$ LFGuard Rail RI‐6 30.00$ LFCurb & Gutter, rolled RI‐7 17.00$ LFCurb & Gutter, vertical RI‐8 12.50$ LFCurb and Gutter, demolition and disposal RI‐9 18.00$ LFCurb, extruded asphalt RI‐10 5.50$ LF 11006,050.00Curb, extruded concrete RI‐11 7.00$ LFSawcut, asphalt, 3" depth RI‐12 1.85$ LF 300555.00Sawcut, concrete, per 1" depth RI‐13 3.00$ LFSealant, asphalt RI‐14 2.00$ LFShoulder, gravel, 4" thick RI‐15 15.00$ SYSidewalk, 4" thick RI‐16 38.00$ SY 1505,700.00Sidewalk, 4" thick, demolition and disposal RI‐17 32.00$ SYSidewalk, 5" thick RI‐18 41.00$ SYSidewalk, 5" thick, demolition and disposal RI‐19 40.00$ SYSign, Handicap RI‐20 85.00$ Each 185.00Striping, per stall RI‐21 7.00$ Each 18126.00Striping, thermoplastic, ( for crosswalk )RI‐22 3.00$ SF 80240.00Striping, 4" reflectorized line RI‐23 0.50$ LF 10050.00Additional 2.5" Crushed Surfacing RI‐24 3.60$ SYHMA 1/2" Overlay 1.5" RI‐25 14.00$ SYHMA 1/2" Overlay 2" RI‐26 18.00$ SYHMA Road, 2", 4" rock, First 2500 SY RI‐27 28.00$ SYHMA Road, 2", 4" rock, Qty. over 2500SY RI‐28 21.00$ SYHMA Road, 4", 6" rock, First 2500 SY RI‐29 45.00$ SYHMA Road, 4", 6" rock, Qty. over 2500 SY RI‐30 37.00$ SYHMA Road, 4", 4.5" ATB RI‐31 38.00$ SYGravel Road, 4" rock, First 2500 SY RI‐32 15.00$ SYGravel Road, 4" rock, Qty. over 2500 SY RI‐33 10.00$ SYThickened Edge RI‐34 8.60$ LFSUBTOTAL THIS PAGE:12,806.00(B)(C)(D)(E)Page 5 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR STREET AND SITE IMPROVEMENTSQuantity Remaining (Bond Reduction) (B) (C)PARKING LOT SURFACING No.2" AC, 2" top course rock & 4" borrow PL‐1 21.00$ SY2" AC, 1.5" top course & 2.5" base course PL‐2 28.00$ SY4" select borrow PL‐35.00$ SY1.5" top course rock & 2.5" base course PL‐4 14.00$ SYSUBTOTAL PARKING LOT SURFACING:(B)(C)(D)(E)LANDSCAPING & VEGETATION No.Street Trees LA‐1Median Landscaping LA‐2Right‐of‐Way Landscaping LA‐3Wetland Landscaping LA‐4SUBTOTAL LANDSCAPING & VEGETATION:(B)(C)(D)(E)TRAFFIC & LIGHTING No.Signs TR‐1Street Light System ( # of Poles) TR‐2Traffic Signal TR‐3Traffic Signal Modification TR‐4SUBTOTAL TRAFFIC & LIGHTING:(B)(C)(D)(E)WRITE‐IN‐ITEMSHMA, 3", 6" rock 30.00$ SY 78523,550.00SUBTOTAL WRITE‐IN ITEMS:23,550.00STREET AND SITE IMPROVEMENTS SUBTOTAL: 48,825.70SALES TAX @ 10% 4,882.57STREET AND SITE IMPROVEMENTS TOTAL: 53,708.27(B)(C)(D)(E)Page 6 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.b TRANSPORTATIONUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostDRAINAGE (CPE = Corrugated Polyethylene Pipe, N12 or Equivalent) For Culvert prices, Average of 4' cover was assumed. Assume perforated PVC is same price as solid pipe.) Access Road, R/D D‐1 26.00$ SY* (CBs include frame and lid)Beehive D‐2 90.00$ EachThrough‐curb Inlet Framework D‐3 400.00$ EachCB Type ID‐4 1,500.00$ EachCB Type IL D‐5 1,750.00$ EachCB Type II, 48" diameter D‐6 2,300.00$ Each for additional depth over 4' D‐7 480.00$ FTCB Type II, 54" diameter D‐8 2,500.00$ Each for additional depth over 4' D‐9 495.00$ FTCB Type II, 60" diameter D‐10 2,800.00$ Each for additional depth over 4' D‐11 600.00$ FTCB Type II, 72" diameter D‐12 6,000.00$ Each for additional depth over 4' D‐13 850.00$ FTCB Type II, 96" diameter D‐14 14,000.00$ Each for additional depth over 4' D‐15 925.00$ FTTrash Rack, 12" D‐16 350.00$ EachTrash Rack, 15" D‐17 410.00$ EachTrash Rack, 18" D‐18 480.00$ EachTrash Rack, 21" D‐19 550.00$ EachCleanout, PVC, 4" D‐20 150.00$ EachCleanout, PVC, 6" D‐21 170.00$ EachCleanout, PVC, 8" D‐22 200.00$ EachCulvert, PVC, 4" D‐23 10.00$ LFCulvert, PVC, 6" D‐24 13.00$ LFCulvert, PVC, 8" D‐25 15.00$ LFCulvert, PVC, 12" D‐26 23.00$ LFCulvert, PVC, 15" D‐27 35.00$ LFCulvert, PVC, 18" D‐28 41.00$ LFCulvert, PVC, 24" D‐29 56.00$ LFCulvert, PVC, 30" D‐30 78.00$ LFCulvert, PVC, 36" D‐31 130.00$ LFCulvert, CMP, 8" D‐32 19.00$ LFCulvert, CMP, 12" D‐33 29.00$ LFSUBTOTAL THIS PAGE:(B)(C)(D)(E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B) (C)Page 7 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B) (C)DRAINAGE (Continued)Culvert, CMP, 15" D‐34 35.00$ LFCulvert, CMP, 18" D‐35 41.00$ LFCulvert, CMP, 24" D‐36 56.00$ LFCulvert, CMP, 30" D‐37 78.00$ LFCulvert, CMP, 36" D‐38 130.00$ LFCulvert, CMP, 48" D‐39 190.00$ LFCulvert, CMP, 60" D‐40 270.00$ LFCulvert, CMP, 72" D‐41 350.00$ LFCulvert, Concrete, 8" D‐42 42.00$ LFCulvert, Concrete, 12" D‐43 48.00$ LFCulvert, Concrete, 15" D‐44 78.00$ LFCulvert, Concrete, 18" D‐45 48.00$ LFCulvert, Concrete, 24" D‐46 78.00$ LFCulvert, Concrete, 30" D‐47 125.00$ LFCulvert, Concrete, 36" D‐48 150.00$ LFCulvert, Concrete, 42" D‐49 175.00$ LFCulvert, Concrete, 48" D‐50 205.00$ LFCulvert, CPE Triple Wall, 6" D‐51 14.00$ LFCulvert, CPE Triple Wall, 8" D‐52 16.00$ LFCulvert, CPE Triple Wall, 12" D‐53 24.00$ LFCulvert, CPE Triple Wall, 15" D‐54 35.00$ LFCulvert, CPE Triple Wall, 18" D‐55 41.00$ LFCulvert, CPE Triple Wall, 24" D‐56 56.00$ LFCulvert, CPE Triple Wall, 30" D‐57 78.00$ LFCulvert, CPE Triple Wall, 36" D‐58 130.00$ LFCulvert, LCPE, 6" D‐59 60.00$ LFCulvert, LCPE, 8" D‐60 72.00$ LFCulvert, LCPE, 12" D‐61 84.00$ LFCulvert, LCPE, 15" D‐62 96.00$ LFCulvert, LCPE, 18" D‐63 108.00$ LFCulvert, LCPE, 24" D‐64 120.00$ LFCulvert, LCPE, 30" D‐65 132.00$ LFCulvert, LCPE, 36" D‐66 144.00$ LFCulvert, LCPE, 48" D‐67 156.00$ LFCulvert, LCPE, 54" D‐68 168.00$ LFSUBTOTAL THIS PAGE:(B)(C)(D)(E)Page 8 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B) (C)DRAINAGE (Continued)Culvert, LCPE, 60" D‐69 180.00$ LFCulvert, LCPE, 72" D‐70 192.00$ LFCulvert, HDPE, 6" D‐71 42.00$ LFCulvert, HDPE, 8" D‐72 42.00$ LFCulvert, HDPE, 12" D‐73 74.00$ LF 826,068.00Culvert, HDPE, 15" D‐74 106.00$ LFCulvert, HDPE, 18" D‐75 138.00$ LFCulvert, HDPE, 24" D‐76 221.00$ LFCulvert, HDPE, 30" D‐77 276.00$ LFCulvert, HDPE, 36" D‐78 331.00$ LFCulvert, HDPE, 48" D‐79 386.00$ LFCulvert, HDPE, 54" D‐80 441.00$ LFCulvert, HDPE, 60" D‐81 496.00$ LFCulvert, HDPE, 72" D‐82 551.00$ LFPipe, Polypropylene, 6" D‐83 84.00$ LFPipe, Polypropylene, 8" D‐84 89.00$ LFPipe, Polypropylene, 12" D‐85 95.00$ LFPipe, Polypropylene, 15" D‐86 100.00$ LFPipe, Polypropylene, 18" D‐87 106.00$ LFPipe, Polypropylene, 24" D‐88 111.00$ LFPipe, Polypropylene, 30" D‐89 119.00$ LFPipe, Polypropylene, 36" D‐90 154.00$ LFPipe, Polypropylene, 48" D‐91 226.00$ LFPipe, Polypropylene, 54" D‐92 332.00$ LFPipe, Polypropylene, 60" D‐93 439.00$ LFPipe, Polypropylene, 72" D‐94 545.00$ LFCulvert, DI, 6" D‐95 61.00$ LFCulvert, DI, 8" D‐96 84.00$ LFCulvert, DI, 12" D‐97 106.00$ LFCulvert, DI, 15" D‐98 129.00$ LFCulvert, DI, 18" D‐99 152.00$ LFCulvert, DI, 24" D‐100 175.00$ LFCulvert, DI, 30" D‐101 198.00$ LFCulvert, DI, 36" D‐102 220.00$ LFCulvert, DI, 48" D‐103 243.00$ LFCulvert, DI, 54" D‐104 266.00$ LFCulvert, DI, 60" D‐105 289.00$ LFCulvert, DI, 72" D‐106 311.00$ LFSUBTOTAL THIS PAGE:6,068.00(B)(C)(D)(E)Page 9 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B) (C)Specialty Drainage ItemsDitching SD‐19.50$ CYFlow Dispersal Trench (1,436 base+) SD‐3 28.00$ LF French Drain (3' depth) SD‐4 26.00$ LFGeotextile, laid in trench, polypropylene SD‐53.00$ SYMid‐tank Access Riser, 48" dia, 6' deep SD‐6 2,000.00$ EachPond Overflow Spillway SD‐7 16.00$ SYRestrictor/Oil Separator, 12" SD‐8 1,150.00$ EachRestrictor/Oil Separator, 15" SD‐9 1,350.00$ EachRestrictor/Oil Separator, 18" SD‐10 1,700.00$ EachRiprap, placed SD‐11 42.00$ CYTank End Reducer (36" diameter) SD‐12 1,200.00$ EachInfiltration pond testing SD‐13 125.00$ HRPermeable Pavement SD‐14Permeable Concrete Sidewalk SD‐15Culvert, Box __ ft x __ ft SD‐16SUBTOTAL SPECIALTY DRAINAGE ITEMS:(B)(C)(D)(E)STORMWATER FACILITIES (Include Flow Control and Water Quality Facility Summary Sheet and Sketch)Detention Pond SF‐1Each Detention Tank SF‐2Each Detention Vault SF‐3Each Infiltration Pond SF‐4Each Infiltration Tank SF‐5Each Infiltration Vault SF‐6Each Infiltration Trenches SF‐7Each Basic Biofiltration Swale SF‐8Each Wet Biofiltration Swale SF‐9Each Wetpond SF‐10 Each Wetvault SF‐11 Each Sand Filter SF‐12 Each Sand Filter Vault SF‐13 Each Linear Sand Filter SF‐14 Each Proprietary Facility SF‐15 Each Bioretention Facility SF‐16 20,000.00$ Each 120,000.00SUBTOTAL STORMWATER FACILITIES:20,000.00(B)(C)(D)(E)Page 10 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostSITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR DRAINAGE AND STORMWATER FACILITIESQuantity Remaining (Bond Reduction) (B) (C)WRITE‐IN‐ITEMS (INCLUDE ON‐SITE BMPs)WI‐1Yard Inlet WI‐2 500.00$ EA 1500.00WI‐3WI‐4WI‐5WI‐6WI‐7WI‐8WI‐9WI‐10WI‐11WI‐12WI‐13WI‐14WI‐15SUBTOTAL WRITE‐IN ITEMS:500.00DRAINAGE AND STORMWATER FACILITIES SUBTOTAL: 20,500.00SALES TAX @ 10% 2,050.00DRAINAGE AND STORMWATER FACILITIES TOTAL: 22,550.00(B) (C) (D) (E)Page 11 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.c DRAINAGEUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostConnection to Existing Watermain W‐1 2,000.00$ Each 12,000.00Ductile Iron Watermain, CL 52, 4 Inch Diameter W‐2 50.00$ LFDuctile Iron Watermain, CL 52, 6 Inch Diameter W‐3 56.00$ LFDuctile Iron Watermain, CL 52, 8 Inch Diameter W‐4 60.00$ LFDuctile Iron Watermain, CL 52, 10 Inch Diameter W‐5 70.00$ LFDuctile Iron Watermain, CL 52, 12 Inch Diameter W‐6 80.00$ LFGate Valve, 4 inch Diameter W‐7 500.00$ EachGate Valve, 6 inch Diameter W‐8 700.00$ EachGate Valve, 8 Inch Diameter W‐9 800.00$ EachGate Valve, 10 Inch Diameter W‐10 1,000.00$ EachGate Valve, 12 Inch Diameter W‐11 1,200.00$ EachFire Hydrant Assembly W‐12 4,000.00$ Each 14,000.00Permanent Blow‐Off Assembly W‐13 1,800.00$ EachAir‐Vac Assembly, 2‐Inch Diameter W‐14 2,000.00$ EachAir‐Vac Assembly, 1‐Inch Diameter W‐15 1,500.00$ EachCompound Meter Assembly 3‐inch Diameter W‐16 8,000.00$ EachCompound Meter Assembly 4‐inch Diameter W‐17 9,000.00$ EachCompound Meter Assembly 6‐inch Diameter W‐18 10,000.00$ EachPressure Reducing Valve Station 8‐inch to 10‐inch W‐19 20,000.00$ EachWATER SUBTOTAL:6,000.00SALES TAX @ 10% 600.00WATER TOTAL: 6,600.00(B) (C) (D) (E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR WATERQuantity Remaining (Bond Reduction) (B) (C)Page 12 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.d WATERUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
CED Permit #:TBDExisting Future Public PrivateRight‐of‐Way Improvements Improvements(D)(E)Description No. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Quant. CostClean Outs SS‐1 1,000.00$ Each 55,000.00Grease Interceptor, 500 gallon SS‐2 8,000.00$ EachGrease Interceptor, 1000 gallon SS‐3 10,000.00$ Each 110,000.00Grease Interceptor, 1500 gallon SS‐4 15,000.00$ EachSide Sewer Pipe, PVC. 4 Inch Diameter SS‐5 80.00$ LF 5400.00Side Sewer Pipe, PVC. 6 Inch Diameter SS‐6 95.00$ LF 918,645.00Sewer Pipe, PVC, 8 inch Diameter SS‐7 105.00$ LF 10511,025.00Sewer Pipe, PVC, 12 Inch Diameter SS‐8 120.00$ LFSewer Pipe, DI, 8 inch Diameter SS‐9 115.00$ LFSewer Pipe, DI, 12 Inch Diameter SS‐10 130.00$ LFManhole, 48 Inch Diameter SS‐11 6,000.00$ EachManhole, 54 Inch Diameter SS‐13 6,500.00$ EachManhole, 60 Inch Diameter SS‐15 7,500.00$ EachManhole, 72 Inch Diameter SS‐17 8,500.00$ EachManhole, 96 Inch Diameter SS‐19 14,000.00$ EachPipe, C‐900, 12 Inch Diameter SS‐21 180.00$ LFOutside Drop SS‐24 1,500.00$ LSInside Drop SS‐25 1,000.00$ LSSewer Pipe, PVC, ____ Inch Diameter SS‐26Lift Station (Entire System) SS‐27 LSSANITARY SEWER SUBTOTAL:35,070.00SALES TAX @ 10% 3,507.00SANITARY SEWER TOTAL: 38,577.00(B) (C) (D) (E)SITE IMPROVEMENT BOND QUANTITY WORKSHEETFOR SANITARY SEWERQuantity Remaining (Bond Reduction) (B) (C)Page 13 of 14Ref 8‐H Bond Quantity WorksheetSECTION II.e SANITARY SEWERUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
Planning Division |1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430‐7200Date:Name:Project Name: PE Registration No:CED Plan # (LUA):Firm Name:CED Permit # (U):Firm Address:Site Address:Phone No.Parcel #(s):Email Address:Project Phase: Site Restoration/Erosion Sediment Control Subtotal (a)Existing Right‐of‐Way Improvements Subtotal (b) (b)‐$ Future Public Improvements Subtotal(c)‐$ Stormwater & Drainage Facilities (Public & Private) Subtotal(d) (d)22,550.00$ (e)(f)Site RestorationCivil Construction PermitMaintenance Bond4,510.00$ Bond Reduction2Construction Permit Bond Amount 3Minimum Bond Amount is $10,000.001 Estimate Only ‐ May involve multiple and variable components, which will be established on an individual basis by Development Engineering.2 The City of Renton allows one request only for bond reduction prior to the maintenance period. Reduction of not more than 70% of the original bond amount, provided that the remaining 30% willcover all remaining items to be constructed. 3 Required Bond Amounts are subject to review and modification by Development Engineering.* Note: The word BOND as used in this document means any financial guarantee acceptable to the City of Renton.** Note: All prices include labor, equipment, materials, overhead and profit. 330‐572‐2100jwhite@gpdgroup.comImprovement Plans Taco Bell17‐0002884225 NE 4th Street, Renton Washington9374000400FOR APPROVALTBD520 S Main Street, Suite 2531, Akron, Oh 4431132,117.25$ P (a) x 100%SITE IMPROVEMENT BOND QUANTITY WORKSHEET BOND CALCULATIONS10/9/2017Darrin Kotecki GPD GroupR((b x 150%) + (d x 100%))S(e) x 150% + (f) x 100%Bond Reduction: Existing Right‐of‐Way Improvements (Quantity Remaining)2Bond Reduction: Stormwater & Drainage Facilities (Quantity Remaining)2T(P +R ‐ S)Prepared by:Project InformationCONSTRUCTION BOND AMOUNT */**(prior to permit issuance)EST1((b) + (c) + (d)) x 20%‐$ MAINTENANCE BOND */**(after final acceptance of construction)9,567.25$ ‐$ 22,550.00$ 9,567.25$ ‐$ 22,550.00$ ‐$ Page 14 of 14Ref 8‐H Bond Quantity WorksheetSECTION III. BOND WORKSHEETUnit Prices Updated: 06/14/2016Version: 04/26/2017Printed 10/14/2017
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