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Home My WebLink About26'0403-SherwinWilliams-TIR - APPROVEDT ERRA F ORMA DESIGN GROUP C I V I L E N G I N E E R I N G & L A N D S C A P E A R C H I T E C T U R E 5027 51st Avenue SW, Seattle, WA 98136 phone 206.795.9023 website www.terraformadesigngroup.com TECHNICAL INFORMATION REPORT _________________________________________________________________ SHERWIN WILLIAMS REMODEL LOCATION: 206 Wells Avenue South Renton, WA 98057 ISSUE DATE: April 3, 2026 PREPARED BY: Terraforma Design Group, Inc. 5027 51st Avenue SW Seattle, WA 98136 TDG No. 25030 4/3/26 DEVELOPMENT ENGINEERING HBray 04/16/2026 Surface Water Enginering jfarah 04/16/2026 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. TABLE OF CONTENTS I. Project Overview 1 II. Conditions and Requirements Summary 14 III. Off-Site Analysis 19 IV. Flow Control and Water Quality Facility Design 22 V. Conveyance System Design 23 VI. Special Reports & Studies 23 VII. Other Permits 23 VIII. Erosion/Sedimentation Control Design 23 IX. Bond Quantities, Facilities Summaries, 23 and Declaration of Covenant X. Operation and Maintenance Manual 23 APPENDIX A – SOIL MAPPING APPENDIX B – STORM OPERATION & MAINTENANCE MANUAL APPENDIX C – CIVIL PLANS SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. I. PROJECT OVERVIEW The proposed development consists of a remodel to the existing Sherwin Williams site at 206 Wells Avenue South in Renton, Washington. The subject property (Parcel #723150-1135) measures 11,513 sf (0.26 ac). The property is zoned CD – Commercial Downtown and within the jurisdiction of the City of Renton. The scope of work will include interior improvements to the existing building. The owner proposes to install new onsite catch basins and regrade the existing asphalt parking lot to remedy previous parking lot flooding. The proposed commercial construction requires a building and civil permits with the City of Renton. The total area is New + Replaced Impervious Surface is approximately 4985 sf. Full Drainage Review will be required. This Technical Information Report and civil engineering plans have been prepared in accordance with the 2022 City of Renton Surface Water Design Manual. The existing building structure was originally developed as early as 1940 according to the King County assessor data. The site consists of an existing 5639 sf building area , 5510 sf of paved parking and a few small planters. 2135 sf, parking, drive-aisle and perimeter landscaping. The existing site is approximately 97% impervious. The site is relatively flat. The parking lot predominately sheets drains to South 2nd Street; there are no onsite storm facilities. There are no areas of native vegetation. There are no wetlands or critical areas onsite or in the immediate vicinity. The site is not within a floodplain. The existing soils are mapped as Urban Land. See Appendix A. The project will result in the following: Net Impervious Area Increase= 0 sf Onsite New & Replaced Impervious Area= 4985 sf Onsite Pollution Generating Impervious Area= 4985 sf (Replaced) 1 CITY OF RENTON SURFACE WATER DESIGN MANUAL 2022 City of Renton Surface Water Design Manual 6/22/2022 8-A-1 REFERENCE 8-A TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 1 PROJECT OWNER AND PROJECT ENGINEER Part 2 PROJECT LOCATION AND DESCRIPTION Project Owner _____________________________ Phone ___________________________________ Address __________________________________ _________________________________________ Project Engineer ___________________________ Company _________________________________ Phone ___________________________________ Project Name __________________________ CED Permit # ________________________ Location Township ________________ Range __________________ Section _________________ Site Address __________________________ _____________________________________ Part 3 TYPE OF PERMIT APPLICATION Part 4 OTHER REVIEWS AND PERMITS  Land Use (e.g., Subdivision / Short Subd.)  Building (e.g., M/F / Commercial / SFR)  Grading  Right-of-Way Use  Other _______________________  DFW HPA  COE 404  DOE Dam Safety  FEMA Floodplain  COE Wetlands  Other ________  Shoreline Management  Structural Rockery/Vault/_____  ESA Section 7 Part 5 PLAN AND REPORT INFORMATION Technical Information Report Site Improvement Plan (Engr. Plans) Type of Drainage Review (check one): Date (include revision dates): Date of Final:  Full  Targeted  Simplified  Large Project  Directed __________________ __________________ __________________ Plan Type (check one): Date (include revision dates): Date of Final:  Full  Modified  Simplified __________________ __________________ __________________ BPG Investments XI LLC (206) 826-5787 206 Wells Avenue S Renton, WA 98057 Pedro DeGuzman, PE Terraforma Design Group, Inc. (206) 795-9023 Sherwin Williams Remodel 206 Wells Avenue South Renton, WA 98057 2/16/26 2/16/26 23N 5E 17 (SW1/4) FIGURE 1 - TIR WORKSHEET 2 REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 6/22/2022 2022 City of Renton Surface Water Design Manual 8-A-2 Part 6 SWDM ADJUSTMENT APPROVALS Type (circle one): Standard / Blanket Description: (include conditions in TIR Section 2) ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Approved Adjustment No. ______________________ Date of Approval: _______________________ Part 7 MONITORING REQUIREMENTS Monitoring Required: Yes / No Start Date: _______________________ Completion Date: _______________________ Describe: _________________________________ _________________________________________ _________________________________________ Re: SWDM Adjustment No. ________________ Part 8 SITE COMMUNITY AND DRAINAGE BASIN Community Plan: ____________________________________________________________________ Special District Overlays: ______________________________________________________________ Drainage Basin: _____________________________________________________________________ Stormwater Requirements: _____________________________________________________________ Part 9 ONSITE AND ADJACENT SENSITIVE AREAS  River/Stream ________________________  Lake ______________________________  Wetlands ____________________________  Closed Depression ____________________  Floodplain ___________________________  Other _______________________________ _______________________________  Steep Slope __________________________  Erosion Hazard _______________________  Landslide Hazard ______________________  Coal Mine Hazard ______________________  Seismic Hazard _______________________  Habitat Protection ______________________  _____________________________________ N/A Lower Cedar River Peak Rate Control, Basic Water Quality FIGURE 1 - TIR WORKSHEET (CONT.) 3 REFERENCE 8-A: TECHNICAL INFORMATION REPORT (TIR) WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 2022 City of Renton Surface Water Design Manual 6/22/2022 Ref 8-A-3 Part 10 SOILS Soil Type ______________________ ______________________ ______________________ ______________________ Slopes ________________________ ________________________ ________________________ ________________________ Erosion Potential _________________________ _________________________ _________________________ _________________________  High Groundwater Table (within 5 feet)  Other ________________________________  Sole Source Aquifer  Seeps/Springs  Additional Sheets Attached Part 11 DRAINAGE DESIGN LIMITATIONS REFERENCE  Core 2 – Offsite Analysis_________________  Sensitive/Critical Areas__________________  SEPA________________________________  LID Infeasibility________________________  Other________________________________  _____________________________________ LIMITATION / SITE CONSTRAINT _______________________________________ _______________________________________ _______________________________________ _______________________________________ _______________________________________ _______________________________________  Additional Sheets Attached Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Threshold Discharge Area: (name or description) Core Requirements (all 9 apply): Discharge at Natural Location Number of Natural Discharge Locations: Offsite Analysis Level: 1 / 2 / 3 dated:__________________ Flow Control (include facility summary sheet) Standard: _______________________________ or Exemption Number: ____________ Conveyance System Spill containment located at: _____________________________ Erosion and Sediment Control / Construction Stormwater Pollution Prevention CSWPP/CESCL/ESC Site Supervisor: _____________________ Contact Phone: _________________________ After Hours Phone: _________________________ Maintenance and Operation Responsibility (circle one): Private / Public If Private, Maintenance Log Required: Yes / No Financial Guarantees and Liability Provided: Yes / No Urban Land flat medium ONSITE 1 2/13/26 Peak Rate Control none * Not Determined Yet * Not Determined Yet #1 (< 5000sf new + replaced impervious) * To be provided with final permit FIGURE 1 - TIR WORKSHEET (CONT.) 4 REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 6/22/2022 2022 City of Renton Surface Water Design Manual 8-A-4 Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Water Quality (include facility summary sheet) Type (circle one): Basic / Sens. Lake / Enhanced Basic / Bog or Exemption No. _______________________ On-site BMPs Describe: Special Requirements (as applicable): Area Specific Drainage Requirements Type: SDO / MDP / BP / Shared Fac. / None Name: ________________________ Floodplain/Floodway Delineation Type (circle one): Major / Minor / Exemption / None 100-year Base Flood Elevation (or range): _______________ Datum: Flood Protection Facilities Describe: Source Control (commercial / industrial land use) Describe land use: Describe any structural controls: Oil Control High-Use Site: Yes / No Treatment BMP: _________________________________ Maintenance Agreement: Yes / No with whom? _____________________________________ Other Drainage Structures Describe: #1 (<5000 sf PGIS) N/A N/A N/A N/A None commercial retail general housekeeping FIGURE 1 - TIR WORKSHEET (CONT.) 5 REFERENCE 8-A: TECHNICAL INFORMATION REPORT (TIR) WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 2022 City of Renton Surface Water Design Manual 6/22/2022 Ref 8-A-5 Part 13 EROSION AND SEDIMENT CONTROL REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION  Clearing Limits  Cover Measures  Perimeter Protection  Traffic Area Stabilization  Sediment Retention  Surface Water Collection  Dewatering Control  Dust Control  Flow Control  Control Pollutants  Protect Existing and Proposed BMPs/Facilities  Maintain Protective BMPs / Manage Project MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION  Stabilize exposed surfaces  Remove and restore Temporary ESC Facilities  Clean and remove all silt and debris, ensure operation of Permanent BMPs/Facilities, restore operation of BMPs/Facilities as necessary  Flag limits of sensitive areas and open space preservation areas  Other _______________________ Part 14 STORMWATER FACILITY DESCRIPTIONS (Note: Include Facility Summary and Sketch) Flow Control Description Water Quality Description On-site BMPs Description  Detention  Infiltration  Regional Facility  Shared Facility  Other _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________  Vegetated Flowpath  Wetpool  Filtration  Oil Control  Spill Control  Other _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________  Full Dispersion  Full Infiltration  Limited Infiltration  Rain Gardens  Bioretention  Permeable Pavement  Basic Dispersion  Soil Amendment  Perforated Pipe Connection  Other _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ * None Proposed * None Proposed * None Proposed FIGURE 1 - TIR WORKSHEET (CONT.) 6 REFERENCE 8: PLAN REVIEW FORMS AND WORKSHEET TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 6/22/2022 2022 City of Renton Surface Water Design Manual 8-A-6 Part 15 EASEMENTS/TRACTS Part 16 STRUCTURAL ANALYSIS  Drainage Easement  Covenant  Native Growth Protection Covenant  Tract  Other ____________________________  Cast in Place Vault  Retaining Wall  Rockery > 4′ High  Structural on Steep Slope  Other _______________________________ Part 17 SIGNATURE OF PROFESSIONAL ENGINEER I, or a civil engineer under my supervision, have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attached Technical Information Report. To the best of my knowledge the information provided here is accurate. ____________________________________________________________________________________ Signed/Date N/A N/A 2/16/26 FIGURE 1 - TIR WORKSHEET (CONT.) 7 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. FIGURE 2 - SITE LOCATION 8 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. AERIAL – EXISTING CONDITIONS FIGURE 3A - AERIAL - EXISTING CONDITIONS 9 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS building planter paving planter pavin g SHERWIN WILLIAMS REMODEL DRAINAGE BASIN MAP FIGURE 3B - DRAINAGE MAP - EXISTING CONDITIONS 10 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS pavin g planter paving planter building SHERWIN WILLIAMS REMODEL DRAINAGE BASIN MAP 11 Soil Map—King County Area, Washington (SHERWIN WILLIAMS - RENTON) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/16/2026 Page 1 of 3 52 5 8 9 0 4 52 5 8 9 1 2 52 5 8 9 2 0 52 5 8 9 2 8 52 5 8 9 3 6 52 5 8 9 4 4 52 5 8 9 5 2 52 5 8 9 0 4 52 5 8 9 1 2 52 5 8 9 2 0 52 5 8 9 2 8 52 5 8 9 3 6 52 5 8 9 4 4 52 5 8 9 5 2 559849 559857 559865 559873 559881 559889 559897 559905 559913 559921 559929 559849 559857 559865 559873 559881 559889 559897 559905 559913 559921 559929 47° 28' 52'' N 12 2 ° 1 2 ' 2 0 ' ' W 47° 28' 52'' N 12 2 ° 1 2 ' 1 6 ' ' W 47° 28' 50'' N 12 2 ° 1 2 ' 2 0 ' ' W 47° 28' 50'' N 12 2 ° 1 2 ' 1 6 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84 0 15 30 60 90 Feet 0 5 10 20 30 Meters Map Scale: 1:375 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. FIGURE 3D - SOIL MAP SEE APPENDIX A - SOIL MAPPING FOR ADDITIONAL INFORMATION 12 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. LANDCOVER DATA Project Name:SHERWIN WILLIAMS - RENTON Project Number:25030 DRAINAGE CRITERIA:CITY OF RENTON Step 1) Site Data 1) General characteristics: Basin 1 Soil type Urban Land Development type retail Soil Group C/D Size (ac.) 0.26 Existing surface roof, paving, planter Flow Control Criteria Peak Rate Flow Predev Cover existing Water Quality Criteria Enhanced Basic Oil Control No Redevelopment Yes 2) Existing onsite characteristics: Landscape 351 sf = 0.01 acres Roof 5639 sf = 0.13 acres Paving 5510 sf = 0.13 acres Total 11500 sf = 0.26 acres 3) Developed onsite characteristics: Landscape 351 sf = 0.01 acres Roof 5639 sf = 0.13 acres Paving 5510 sf = 0.13 acres Total 11500 sf = 0.26 acres 4) Total New + Replaced Hard Surface New + Replaced Impervious 4985 sf = 0.11 acres 5) Total New + Replaced Pollution Generating Impervious New + Replaced PGIS 4985 sf = 0.11 acres Step 2) Drainage Improvement Criteria 1) Core Requirement 3: Flow Control Facilities Basic Exemption since < 5000 sf of New + Replaced Impervious Surface 2) Core Requirement #8: Water Quality Facilities Basin Exemption since < 5000 sf of New + Replaced Pollution Generating Impervious Surface 3) Core Requirement #9: On-Site BMPs Applicable since > 2000 sf of New + Replaced Impervious Surface. FIGURE 3E - LANDCOVER DATA 13 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. II. CONDITIONS AND REQUIREMENTS SUMMARY This Technical Information Report and the proposed drainage plans have been prepared in accordance with the 2022 City of Renton Surface Water Design Manual. Full Drainage Review will be required. The project will be classified as a Redevelopment. This Technical Information Report will address the 9 core and 6 special requirements of the manual, including a Level 1 downstream analysis. 14 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Core Requirement #1 - Discharge at the Natural Location The project will continue to drain to the existing City of Renton storm drainage system in South 2nd Street. Core Requirement #2 - Off-site Analysis A Level 1 Downstream Analysis is required for the project. The site drainage is part of the Lower Cedar River drainage drainage basin. We do not know of any downstream drainage problems. See Section 3 of this Report for additional information. Core Requirement #3 - Flow Control The property is within the City’s Peak Rate Flow Control map area. The project involves 0 sf of New Impervious and approximately 4985 sf of Replaced Impervious Surface. The proposed commercial development qualifies for a Basic Exemption from flow control since there will be less than 5000 sf of New + Replaced Impervious Surface. Core Requirement #4 - Conveyance System New catch basins and 8-inch storm drains are proposed to convey runoff from the regraded asphalt parking lot. See Section 5 of this report. Core Requirement #5 - Erosion and Sediment Control Erosion Control BMP’s will be provided for the project, including straw wattles and CB inlet protection. Considering the limited area of site disturbance, measures such as silt fencing or construction entrances are not warranted. See Section 8 of this report. Core Requirement #6 - Maintenance and Operations An Operations and Maintenance Manual for Storm Drainage Facilities is required. See Section 10 of this report. Core Requirement #7 - Financial Guarantees and Liability See Section 9 of this report. 15 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Core Requirement #8 - Water Quality The project is within the City’s Basic Treatment map area. The project qualifies for a Basic Exemption since we will have less than 5000 sf of New + Replaced Pollution Generating Impervious Surface. Core Requirement #9 – On-Site BMPs Since the project exceeds 2000 sf of New plus Replaced Impervious Surfaces, the project will require Low Impact Development BMPs to the maximum extent possible in accordance with Large Lot BMPs (for properties > 22,000 sf). As required by the 2022 City of Renton SWDM, Section 1.2.9.2.1, the feasibility and applicability of each BMP method must be evaluated. The following is an outline of our landcover area and the viability of each Onsite Stormwater Management BMP (viability analysis noted in bold): 1. Full Dispersion The feasibility and applicability of full dispersion as detailed in Appendix C, Section C.2.1 must be evaluated for all target impervious surfaces. If feasible and applicable, full dispersion must be implemented as part of the proposed project. Typically, small lot full dispersion will be applicable only in subdivisions where enough forest was preserved by tract, easement, or covenant to meet the minimum design requirements for full dispersion in Appendix C, Section C.2.1.1 ~ Not feasible since no native vegetated areas exist. 2. Full Infiltration Where full dispersion of target impervious roof areas is not feasible or applicable, or will cause flooding or erosion impacts, the feasibility and applicability of full infiltration as detailed in Appendix C, Section C.2.2 must be evaluated (note, this will require a soils report for the site/lot). If feasible and applicable, full infiltration of roof runoff must be implemented as part of the proposed project. ~ Not feasible due to the existing Urban Land onsite soils. We would not have adequate vertical separation to the underlying densic material. 3. Area Targeted BMPs All target impervious surfaces not mitigated by Requirements 1 and 2 above, must be mitigated to the maximum extent feasible using one or more BMPs from the following list. Use of a given BMP is subject to evaluation of its feasibility and applicability as detailed in Appendix C. Feasible BMPs are required to be implemented. The BMPs listed below may be located anywhere on the site/lot subject to the limitations and design specifications for each BMP. These BMPs must be implemented as part of the proposed project. A. Full Infiltration per Appendix C, Section C.2.2, or per Section 5.2, whichever is applicable. ~ Not feasible due to the existing Urban Land onsite soils. We would not have adequate vertical separation to the underlying densic material. B. Limited Infiltration per Appendix C, Section C.2.3, See 3A above. C. Rain Gardens per Appendix C, Section C.2.12, sized as follows: o Rain gardens have a maximum contributing area of 5,000 square feet. o Rain gardens must have a minimum horizontal projected surface area below the overflow that is at least 5% of the area draining to it. 16 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. ~ Not feasible due to the existing Urban Land onsite soils. We would not have adequate vertical separation to the underlying densic material. D. Bioretention per Appendix C, Section C.2.6: ~ See Item 3C above. E. Permeable Pavement per Appendix C, Section C.2.7 ~ Not feasible due to seasonal high ground water or an underlying impermeable/low permeable layer would create saturated conditions within one foot of the bottom of the lowest gravel base course or sand layer. 4. All target impervious surfaces not mitigated by Requirements 1, 2 and 3 above, must be mitigated to the maximum extent feasible using the Basic Dispersion BMP described below. Use of Basic Dispersion is subject to evaluation of its feasibility and applicability as detailed in Appendix C. Feasible BMPs are required to be implemented. Basic Dispersion BMPs may be located anywhere on the site/lot subject to the limitations and design specifications cited in Appendix C. The BMP must be implemented as part of the proposed project. • Basic Dispersion per Appendix C, Section C.2.4, ~ Not feasible as we cannot meet the 50- foot minimum vegetated flow path requirement. 5. BMPs must be implemented, at minimum, for an impervious area equal to at least 10% of the site/lot for site/lot sizes up to 11,000 square feet and at least 20% of the site/lot for site/lot sizes between 11,000 and 22,000 square feet. For projects located in Zone 1 of the Aquifer Protection Area, these impervious area amounts must be doubled. Doubling of the minimum impervious area required for BMP implementation in Zone 1 of the Aquifer Protection Area is not required for projects located within 200 feet of a steep slope hazard area, landslide hazard, or erosion hazard area. If these minimum areas are not mitigated using feasible BMPs from Requirements 1, 2, 3, and 4 above, one or more BMPs from the following list are required to be implemented to achieve compliance. These BMPs must be implemented as part of the proposed project. • Reduced Impervious Surface Credit per Appendix C, Section C.2.9, • Native Growth Retention Credit per Appendix C, Section C.2.10. • Tree Retention Credit per Appendix C, Section C.2.14 ~ None of these conditions apply to this project. 6. The soil moisture holding capacity of new pervious surfaces (target pervious surfaces) must be protected in accordance with the soil amendment BMP as detailed in Appendix C, Section C.2.13. ~ The proposed project will be required to install Soil Amendment to the planter beds (if disturbed) to provide adequate soil quality for the proposed landscape areas. 7. Any proposed connection of roof downspouts to the local drainage system must be via a perforated pipe connection as detailed in Appendix C, Section C.2.11. ~ See Item 3C above. 17 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Special Requirement #1 - Other Adopted Area Specific Requirements We do not know of any area specific requirements for our immediate vicinity. Special Requirement #2 – Flood Hazard Area Delineation Not applicable. Site is not within a floodplain or floodway. Special Requirement #3 - Flood Protection Facilities Not applicable. Site is not within a floodplain or floodway. Special Requirement #4 - Source Control The proposed office building should not trigger any specific Source Control requirements. Special Requirement #5 - Oil Control Not applicable; the proposed use does not meet the definition of a high-use related to traffic. Special Requirement #6 – Aquifer Protection Area The site is within Aquifer Protection Zone 1. Infiltration is prohibited in this zone. 18 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. III. OFF-SITE ANALYSIS A Level 1 Downstream Analysis is required for the development. The site drainage is part of the Lower Cedar River drainage sub-basin. Site runoff will continue to discharge to the storm drain system in South 2nd Street. The City storm system turns northward at Logan Avenue South and northwesterly at East Perimeter Drive before outfalling into the Cedar River. We do not know of any downstream drainage problems. See attached:  Downstream Drainage Map  Off-Site Analysis Drainage System Table 19 SITE 1 2 73' ~ 12"DI @ 0.1% 34 215' ~ 15"CONC @ 0.37%12"DI 6 5 76' ~ 15"CONC @ 0.37%298' ~ 18"CONC @ 1.12% 78 26' ~ 18"CONC @ 0.01% 308' ~ 21"CONC @ 0.29% 9 10' ~ 21"CONC @ 3.0% 10 61' ~ 24"CONC @ 0.87% 392' ~ 24"CONC @ 0.61% 11 4' ~ 8"DI @ 0.5% S 2ND ST. S 2ND ST. WE L L S A V E . S WI L L I A M S A V E . S BU R N E T T A V E . S LO G A N A V E . S SHERWIN WILLIAMS REMODEL DRAINAGE BASIN MAP 20 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. SITE ADDRESS: 206 WELLS AVE SOUTH, RENTON BASIN:1 SUBBASIN NAME: SUBBASIN #: DATE: 2/13/2026 SYMBOL DRAINAGE COMPONENT TYPE, NAME AND SIZE DRAINAGE COMPONENT DESCRIPTION SLOPE PIPE LENGTH DISTANCE FROM SITE DISCHARGE EXISTING PROBLEMS POTENTIAL PROBLEMS OBSERVATIONS OF FIELD INSPECTOR, RESOURCE REVIEWER OR RESIDENT see map Type: sheet flow, swale, stream, channel, pipe, pond, flow control/wq BMP; Size: diameter, surface area drainage basin, vegetation, cover, depth, type of sensitive area, volume % 1/4 mi = 1320 ft tributary area, likelihood of problem, overflow pathways, potential impacts 1 CB storm connection - 0 2 8" ductile roadway 0.50% 4 4 none none none 3 12" conc roadway 0.1% 73 77 none none none 4 12" conc roadway 0.1% 8 85 none none none 5 15" conc roadway 0.37% 215 300 none none none 6 18" conc roadway 1.12% 76 376 none none none 7 18" conc roadway 0.10% 298 674 none none none 8 21" conc roadway 3.00% 10 684 none none none 9 21" conc roadway 0.29% 308 992 none none none 10 24" conc roadway 0.87% 61 1053 none none none 11 18" conc roadway 0.61% 392 1445 none none none NO DOWNSTREAM DRAINAGE CONCERNS FOUND OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLE constrictions, under capacity, ponding, overtopping, flooding, habitat or organism destruction, scouring, bank sloughing, sedimentation, incision, other erosion 21 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. IV. FLOW CONTROL AND WATER QUALITY FACILITY DESIGN PART A – EXISTING SITE HYDROLOGY The site consists of an existing 5639 sf building area , 5510 sf of paved parking and a few small planters. 2135 sf, parking, drive-aisle and perimeter landscaping. The existing site is approximately 97% impervious. The site is relatively flat with the north parking lot predominately sheet draining to South 2nd Street. There are no onsite storm facilities. The site has had parking lot ponding due to minimal grade drop from the building entries to the South 2nd Street sidewalk. Refer to the survey for additional information. PART B – DEVELOPED SITE HYDROLOGY The scope of work will include minor interior improvements to the existing building. The owner proposes to regrade and repave the north parking lot and add two (2) new catch basins to address the parking lot ponding issues. A new 8-inch storm drain will route the drainage to an existing catch basin in South 2nd Street. The project will result in the following: Net Impervious Area Increase= 0 sf Onsite New & Replaced Impervious Area= 4985 sf Onsite Pollution Generating Impervious Area= 4985 sf (Replaced) PART C – PERFORMANCE STANDARDS The project is exempt from Core Requirement #3 – Flow Control and Core Requirements #9 – Water Quality since our proposed New + Replace Impervious Surface area is less than 5000 sf. No flow control or water quality treatment measures are proposed. PART D – FLOW CONTROL SYSTEM No flow control facilities are proposed. PART E – WATER QUALITY SYSTEM No water quality facilities are proposed. 22 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. V. CONVEYANCE SYSTEMS ANALYSIS AND DESIGN Due to existing parking lot flooding issues, onsite catch basins are proposed with a new storm drain connection to South 2nd Street. VI. SPECIAL REPORTS AND STUDIES No special report or studies were conducted. VII. OTHER PERMITS Not Applicable. VIII. EROSION/SEDIMENTATION CONTROL DESIGN Erosion Control BMP’s will be provided for the project, including straw wattles and CB inlet protection. A Temporary Erosion and Sedimentation Control (TESC) Plan is included with the sitework plans. IX. BOND QUANTITIES, FACILITY SUMMARIES AND DECLARATION OF COVENANT Bond Quantities Worksheet were included with the permit submittal. No proposed flow control or water quality facilities are proposed. Declaration of Covenant is not required since there are no on-site stormwater BMP's. X OPERATIONS AND MAINTENANCE MANUAL An Operations and Maintenance Manual is provided within Appendix B. 23 1055 South Grady Way – 6 th Floor | Renton, WA 98057 (425) 430-7200 • • Section I: Project Information • • • Section II: Bond Quantities Worksheets • • Section II.a EROSION CONTROL (Stabilization/Erosion Sediment Control (ESC)) • Section II.b TRANSPORTATION (Street and Site Improvements) • Section II.c DRAINAGE (Drainage and Stormwater Facilities): • Section II.d WATER - ONLY APPLICABLE IF WATER SERVICE IS PROVIDED BY CITY OF RENTON • Section II.e SANITARY SEWER - ONLY APPLICABLE IF SEWER SERVICE IS PROVIDED BY CITY OF RENTON • • • • • • Section III. Bond Worksheet • BOND QUANTITY WORKSHEET INSTRUCTIONS This worksheet is intended to be a "working" copy of the bond quantity worksheet, which will be used throughout all phases of the project, from initial submittal to project close-out approval. Submit this workbook, in its entirety, as follows: The following forms are to be completed by the engineer/developer/applicant as applicable to the project: The Bond Worksheet form will auto-calculate and auto-populate from the information provided in Section I and Section II. This section includes all pertinent information for the project Section II contains a separate spreadsheet TAB for each of the following specialties: (1) electronic copy (.xlsx format) and (1) hard copy of the entire workbook for civil construction permit submittal. Hard copies are to be included as part of the Technical Information Report (TIR). (1) electronic copy (.xlsx format) and (1) hard copy of the entire workbook for final close-out submittal. This section must be completed in its entirety Information from this section auto-populates to all other relevant areas of the workbook This section calculates the required Permit Bond for construction permit issuance as well as the required Maintenance Bond for project close-out submittals to release the permit bond on a project. All unit prices include labor, equipment, materials, overhead, profit, and taxes. Complete the 'Quantity' columns for each of the appropriate section(s). Include existing Right-of-Way (ROW), Future Public Improvements and Private Improvements. The 'Quantity Remaining' column is only to be used when a project is under construction. The City allows one (1) bond reduction during the life of the project with the exception of the maintenance period reduction. Excel will auto-calculate and auto-populate the relevant fields and subtotals throughout the document. Only the 'Quantity' columns should need completing. Additional items not included in the lists can be added under the "write-in" sections. Provide a complete description, cost estimate and unit of measure for each write-in item. Note: Private improvements, with the exception of stormwater facilities, are not included in the bond amount calculation, but must be entered on the form. Stormwater facilities (public and private) are required to be included in the bond amount. Page 1 of 16 Ref 8-H Bond Quantity Worksheet INSTRUCTIONS Version: 1/2/2026 Printed 4/3/2026 24 1055 South Grady Way – 6th Floor | Renton, WA 98057 (425) 430-7200 Date Prepared: Name: PE Registration No: Firm Name: Firm Address: Phone No. Email Address: Project Name: Project Owner: CED Plan # (LUA): Phone: CED Permit # (C):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:NO Water Service Provided by: If Yes, Provide Forest Practice Permit #:Sewer Service Provided by: Total Estimated Construction Costs E A + B + C + D 53,970.96$ Estimated Civil Construction Permit - Construction Costs2 Stormwater (Drainage)C 12,182.63$ As outlined in City Ordinance No. 4345, 50% of the plan review and inspection fees are to be paid at Permit Submittal. The balance is due at Permit Issuance. Significant changes or additional review cycles (beyond 3 cycles) during the review process may result in adjustments to the final review fees. Roadway (Erosion Control + Transportation)D 41,788.34$ Water A -$ Wastewater (Sanitary Sewer)B -$ AddressAbbreviated Legal Description: Lots 1 & 2, Block 13, Town of Renton, accord to plat thereof, recorded in Volume 1 of Plats, Page 35, records of King County City, State, Zip 206 Wells Avenue South, Renton 98057 206 Wells Avenue South Additional Project OwnerC26001238 (206) 826-5787 4/3/2026 Prepared by: FOR APPROVALProject Phase 1 pedro@terraformadesigngroup.com Pedro DeGuzman, PE 35646 Terraforma Design Group, Inc. 5027 51st Avenue SW, Seattle, WA 98136 (206) 795-9023 SITE IMPROVEMENT BOND QUANTITY WORKSHEET PROJECT INFORMATION CITY OF RENTON CITY OF RENTON Phone Engineer Stamp Required (all cost estimates must have original wet stamp and signature) Clearing and Grading Utility Providers N/A Project Location and Description Project Owner Information SHERWIN WILLIAMS REMODEL Renton, WA 98057 723150-1135 BPG INVESTMENTS XI LLC Page 2 of 16 Ref 8-H Bond Quantity Worksheet SECTION I PROJECT INFORMATION Version 1/2/2026 Printed 4/3/2026 25 10.5%2 All prices include labor, equipment, materials, overhead, profit, and taxes. City of Renton Sales Tax is: 1 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 Submittal Page 3 of 16 Ref 8-H Bond Quantity Worksheet SECTION I PROJECT INFORMATION Version 1/2/2026 Printed 4/3/2026 26 CED Permit #: Unit Reference #Price Unit Quantity Cost Backfill & compaction-embankment ESC-1 7.50$ CY Check dams, 4" minus rock ESC-2 SWDM 5.4.6.3 90.00$ Each Catch Basin Protection ESC-3 145.00$ Each 2 290.00 Crushed surfacing 1 1/4" minus ESC-4 WSDOT 9-03.9(3)110.00$ CY Ditching ESC-5 10.50$ CY Excavation-bulk ESC-6 2.30$ CY Fence, silt ESC-7 SWDM 5.4.3.1 5.00$ LF Fence, Temporary (NGPE)ESC-8 1.75$ LF Geotextile Fabric ESC-9 3.00$ SY Hay Bale Silt Trap ESC-10 0.60$ Each Hydroseeding ESC-11 SWDM 5.4.2.4 0.90$ SY Interceptor Swale / Dike ESC-12 1.15$ LF Jute Mesh ESC-13 SWDM 5.4.2.2 4.00$ SY Level Spreader ESC-14 2.00$ LF Mulch, by hand, straw, 3" deep ESC-15 SWDM 5.4.2.1 2.90$ SY Mulch, by machine, straw, 2" deep ESC-16 SWDM 5.4.2.1 2.30$ SY Piping, temporary, CPP, 6"ESC-17 13.75$ LF Piping, temporary, CPP, 8"ESC-18 16.00$ LF Piping, temporary, CPP, 12"ESC-19 20.50$ LF Plastic covering, 6mm thick, sandbagged ESC-20 SWDM 5.4.2.3 4.60$ SY Rip Rap, machine placed; slopes ESC-21 WSDOT 9-13.1(2)51.00$ CY Rock Construction Entrance, 50'x15'x1'ESC-22 SWDM 5.4.4.1 2,050.00$ Each Rock Construction Entrance, 100'x15'x1'ESC-23 SWDM 5.4.4.1 3,675.00$ Each Sediment pond riser assembly ESC-24 SWDM 5.4.5.2 2,525.00$ Each Sediment trap, 5' high berm ESC-25 SWDM 5.4.5.1 22.00$ LF Sed. trap, 5' high, riprapped spillway berm section ESC-26 SWDM 5.4.5.1 80.00$ LF Seeding, by hand ESC-27 SWDM 5.4.2.4 1.15$ SY Sodding, 1" deep, level ground ESC-28 SWDM 5.4.2.5 9.20$ SY Sodding, 1" deep, sloped ground ESC-29 SWDM 5.4.2.5 11.50$ SY TESC Supervisor ESC-30 125.00$ HR 4 500.00 Water truck, dust control ESC-31 SWDM 5.4.7 160.00$ HR Unit Reference #Price Unit Quantity Cost 4.00$ LF 140 560.00 EROSION/SEDIMENT SUBTOTAL:1,350.00 SALES TAX @ 10.5%141.75 EROSION/SEDIMENT TOTAL:1,491.75 (A) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR EROSION & SEDIMENT CONTROL Description No. (A) Straw wattle WRITE-IN-ITEMS Page 4 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.a EROSION_CONTROL Version 1/2/2026 Printed 4/3/2026 27 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost GENERAL ITEMS Backfill & Compaction- embankment GI-1 7.00$ CY Backfill & Compaction- trench GI-2 10.25$ CY Clear/Remove Brush, by hand (SY)GI-3 1.15$ SY Bollards - fixed GI-4 275.00$ Each Bollards - removable GI-5 520.00$ Each Clearing/Grubbing/Tree Removal GI-6 11,475.00$ Acre Excavation - bulk GI-7 2.30$ CY Excavation - Trench GI-8 5.75$ CY Fencing, cedar, 6' high GI-9 23.00$ LF Fencing, chain link, 4'GI-10 44.00$ LF Fencing, chain link, vinyl coated, 6' high GI-11 23.00$ LF Fencing, chain link, gate, vinyl coated, 20' GI-12 1,600.00$ Each Fill & compact - common barrow GI-13 28.75$ CY Fill & compact - gravel base GI-14 31.00$ CY Fill & compact - screened topsoil GI-15 44.75$ CY Gabion, 12" deep, stone filled mesh GI-16 74.50$ SY Gabion, 18" deep, stone filled mesh GI-17 103.25$ SY Gabion, 36" deep, stone filled mesh GI-18 172.00$ SY Grading, fine, by hand GI-19 2.90$ SY Grading, fine, with grader GI-20 2.30$ SY Monuments, 3' Long GI-21 1,025.00$ Each Sensitive Areas Sign GI-22 8.00$ Each Sodding, 1" deep, sloped ground GI-23 9.25$ SY Surveying, line & grade GI-24 975.00$ Day Surveying, lot location/lines GI-25 2,050.00$ Acre Topsoil Type A (imported)GI-26 32.75$ CY Traffic control crew ( 2 flaggers )GI-27 137.75$ HR Trail, 4" chipped wood GI-28 9.15$ SY Trail, 4" crushed cinder GI-29 10.25$ SY Trail, 4" top course GI-30 13.75$ SY Conduit, 2"GI-31 5.75$ LF Wall, retaining, concrete GI-32 63.00$ SF Wall, rockery GI-33 17.25$ SF SUBTOTAL THIS PAGE: (B)(C)(D)(E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) Page 5 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Version 1/2/2026 Printed 4/3/2026 28 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) ROAD IMPROVEMENT/PAVEMENT/SURFACING AC Grinding, 4' wide machine < 1000sy RI-1 34.50$ SY AC Grinding, 4' wide machine 1000-2000sy RI-2 18.25$ SY AC Grinding, 4' wide machine > 2000sy RI-3 11.50$ SY AC Removal/Disposal RI-4 40.00$ SY 530 21,200.00 Barricade, Type III ( Permanent )RI-5 64.25$ LF Guard Rail RI-6 34.50$ LF Curb & Gutter, rolled RI-7 19.50$ LF Curb & Gutter, vertical RI-8 14.25$ LF Curb and Gutter, demolition and disposal RI-9 20.50$ LF Curb, extruded asphalt RI-10 6.25$ LF Curb, extruded concrete RI-11 8.00$ LF Sawcut, asphalt, 3" depth RI-12 3.00$ LF 36 108.00 Sawcut, concrete, per 1" depth RI-13 5.00$ LF 16 80.00 Sealant, asphalt RI-14 2.25$ LF 36 81.00 Shoulder, gravel, 4" thick RI-15 17.25$ SY Sidewalk, 4" thick RI-16 43.50$ SY 9 391.50 18 783.00 Sidewalk, 4" thick, demolition and disposal RI-17 37.00$ SY 9 333.00 18 666.00 Sidewalk, 5" thick RI-18 47.00$ SY Sidewalk, 5" thick, demolition and disposal RI-19 46.00$ SY Sign, Handicap RI-20 97.00$ Each 1 97.00 Striping, per stall RI-21 8.00$ Each 1 8.00 Striping, thermoplastic, ( for crosswalk )RI-22 3.50$ SF Striping, 4" reflectorized line RI-23 0.55$ LF Additional 2.5" Crushed Surfacing RI-24 4.15$ SY HMA 1/2" Overlay 1.5" RI-25 16.00$ SY HMA 1/2" Overlay 2"RI-26 20.75$ SY HMA Road, 2", 4" rock, First 2500 SY RI-27 32.25$ SY HMA Road, 2", 4" rock, Qty. over 2500SY RI-28 24.00$ SY HMA Road, 4", 6" rock, First 2500 SY RI-29 51.75$ SY HMA Road, 4", 6" rock, Qty. over 2500 SY RI-30 42.50$ SY HMA Road, 4", 4.5" ATB RI-31 43.50$ SY Gravel Road, 4" rock, First 2500 SY RI-32 17.25$ SY Gravel Road, 4" rock, Qty. over 2500 SY RI-33 11.50$ SY Thickened Edge RI-34 10.00$ LF SUBTOTAL THIS PAGE:804.50 22,943.00 (B)(C)(D)(E) Page 6 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Version 1/2/2026 Printed 4/3/2026 29 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR STREET AND SITE IMPROVEMENTS Quantity Remaining (Bond Reduction) (B)(C) PARKING LOT SURFACING No. 2" AC, 2" top course rock & 4" borrow PL-1 24.00$ SY 530 12,720.00 2" AC, 1.5" top course & 2.5" base course PL-2 32.00$ SY 4" select borrow PL-3 5.75$ SY 1.5" top course rock & 2.5" base course PL-4 16.00$ SY SUBTOTAL PARKING LOT SURFACING:12,720.00 (B)(C)(D)(E) LANDSCAPING & VEGETATION No. Street Trees LA-1 Median Landscaping LA-2 Right-of-Way Landscaping LA-3 Wetland Landscaping LA-4 SUBTOTAL LANDSCAPING & VEGETATION: (B)(C)(D)(E) TRAFFIC & LIGHTING No. Signs TR-1 Street Light System ( # of Poles)TR-2 Traffic Signal TR-3 Traffic Signal Modification TR-4 SUBTOTAL TRAFFIC & LIGHTING: (B)(C)(D)(E) WRITE-IN-ITEMS SUBTOTAL WRITE-IN ITEMS: STREET AND SITE IMPROVEMENTS SUBTOTAL:804.50 35,663.00 SALES TAX @ 10.5%84.47 3,744.62 STREET AND SITE IMPROVEMENTS TOTAL:888.97 39,407.62 (B)(C)(D)(E) Page 7 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.b TRANSPORTATION Version 1/2/2026 Printed 4/3/2026 30 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost DRAINAGE (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 30.00$ SY * (CBs include frame and lid) Beehive D-2 103.00$ Each Through-curb Inlet Framework D-3 460.00$ Each CB Type I D-4 1,725.00$ Each 2 3,450.00 CB Type IL D-5 2,000.00$ Each CB Type II, 48" diameter D-6 3,500.00$ Each for additional depth over 4' D-7 550.00$ FT CB Type II, 54" diameter D-8 4,075.00$ Each for additional depth over 4'D-9 570.00$ FT CB Type II, 60" diameter D-10 4,225.00$ Each for additional depth over 4'D-11 690.00$ FT CB Type II, 72" diameter D-12 6,900.00$ Each for additional depth over 4'D-13 975.00$ FT CB Type II, 96" diameter D-14 16,000.00$ Each for additional depth over 4'D-15 1,050.00$ FT Trash Rack, 12"D-16 400.00$ Each Trash Rack, 15"D-17 470.00$ Each Trash Rack, 18"D-18 550.00$ Each Trash Rack, 21"D-19 630.00$ Each Cleanout, PVC, 4"D-20 170.00$ Each Cleanout, PVC, 6"D-21 195.00$ Each Cleanout, PVC, 8"D-22 230.00$ Each Culvert, PVC, 4" D-23 11.50$ LF Culvert, PVC, 6" D-24 15.00$ LF Culvert, PVC, 8" D-25 17.00$ LF Culvert, PVC, 12" D-26 26.00$ LF Culvert, PVC, 15" D-27 40.00$ LF Culvert, PVC, 18" D-28 47.00$ LF Culvert, PVC, 24"D-29 65.00$ LF Culvert, PVC, 30" D-30 90.00$ LF Culvert, PVC, 36" D-31 150.00$ LF Culvert, CMP, 8"D-32 22.00$ LF Culvert, CMP, 12"D-33 33.00$ LF SUBTOTAL THIS PAGE:3,450.00 (B)(C)(D)(E) Quantity Remaining (Bond Reduction) (B)(C) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Page 8 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Version 1/2/2026 Printed 4/3/2026 31 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Quantity Remaining (Bond Reduction) (B)(C) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES DRAINAGE (Continued) Culvert, CMP, 15"D-34 40.00$ LF Culvert, CMP, 18"D-35 47.00$ LF Culvert, CMP, 24"D-36 64.00$ LF Culvert, CMP, 30"D-37 90.00$ LF Culvert, CMP, 36"D-38 150.00$ LF Culvert, CMP, 48"D-39 218.00$ LF Culvert, CMP, 60"D-40 310.00$ LF Culvert, CMP, 72"D-41 400.00$ LF Culvert, Concrete, 8"D-42 48.00$ LF Culvert, Concrete, 12"D-43 55.00$ LF Culvert, Concrete, 15"D-44 89.00$ LF Culvert, Concrete, 18"D-45 100.00$ LF Culvert, Concrete, 24"D-46 120.00$ LF Culvert, Concrete, 30"D-47 145.00$ LF Culvert, Concrete, 36"D-48 175.00$ LF Culvert, Concrete, 42"D-49 200.00$ LF Culvert, Concrete, 48"D-50 235.00$ LF Culvert, CPE Triple Wall, 6" D-51 16.00$ LF Culvert, CPE Triple Wall, 8" D-52 18.00$ LF Culvert, CPE Triple Wall, 12" D-53 27.00$ LF Culvert, CPE Triple Wall, 15" D-54 40.00$ LF Culvert, CPE Triple Wall, 18" D-55 47.00$ LF Culvert, CPE Triple Wall, 24" D-56 64.00$ LF Culvert, CPE Triple Wall, 30" D-57 90.00$ LF Culvert, CPE Triple Wall, 36" D-58 149.00$ LF Culvert, LCPE, 6"D-59 69.00$ LF Culvert, LCPE, 8"D-60 83.00$ LF Culvert, LCPE, 12"D-61 96.00$ LF Culvert, LCPE, 15"D-62 110.00$ LF Culvert, LCPE, 18"D-63 124.00$ LF Culvert, LCPE, 24"D-64 138.00$ LF Culvert, LCPE, 30"D-65 151.00$ LF Culvert, LCPE, 36"D-66 165.00$ LF Culvert, LCPE, 48"D-67 179.00$ LF Culvert, LCPE, 54"D-68 193.00$ LF SUBTOTAL THIS PAGE: (B)(C)(D)(E) Page 9 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Version 1/2/2026 Printed 4/3/2026 32 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Quantity Remaining (Bond Reduction) (B)(C) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES DRAINAGE (Continued) Culvert, LCPE, 60"D-69 206.00$ LF Culvert, LCPE, 72"D-70 220.00$ LF Culvert, HDPE, 6"D-71 48.00$ LF Culvert, HDPE, 8"D-72 60.00$ LF Culvert, HDPE, 12"D-73 85.00$ LF Culvert, HDPE, 15"D-74 122.00$ LF Culvert, HDPE, 18"D-75 158.00$ LF Culvert, HDPE, 24"D-76 254.00$ LF Culvert, HDPE, 30"D-77 317.00$ LF Culvert, HDPE, 36"D-78 380.00$ LF Culvert, HDPE, 48"D-79 443.00$ LF Culvert, HDPE, 54"D-80 506.00$ LF Culvert, HDPE, 60"D-81 570.00$ LF Culvert, HDPE, 72"D-82 632.00$ LF Pipe, Polypropylene, 6"D-83 96.00$ LF Pipe, Polypropylene, 8"D-84 100.00$ LF Pipe, Polypropylene, 12"D-85 100.00$ LF Pipe, Polypropylene, 15"D-86 103.00$ LF Pipe, Polypropylene, 18"D-87 106.00$ LF Pipe, Polypropylene, 24"D-88 119.00$ LF Pipe, Polypropylene, 30"D-89 136.00$ LF Pipe, Polypropylene, 36"D-90 185.00$ LF Pipe, Polypropylene, 48"D-91 260.00$ LF Pipe, Polypropylene, 54"D-92 381.00$ LF Pipe, Polypropylene, 60"D-93 504.00$ LF Pipe, Polypropylene, 72"D-94 625.00$ LF Culvert, DI, 6"D-95 70.00$ LF Culvert, DI, 8"D-96 101.00$ LF 75 7,575.00 Culvert, DI, 12"D-97 121.00$ LF Culvert, DI, 15"D-98 148.00$ LF Culvert, DI, 18"D-99 175.00$ LF Culvert, DI, 24"D-100 200.00$ LF Culvert, DI, 30"D-101 227.00$ LF Culvert, DI, 36"D-102 252.00$ LF Culvert, DI, 48"D-103 279.00$ LF Culvert, DI, 54"D-104 305.00$ LF Culvert, DI, 60"D-105 331.00$ LF Culvert, DI, 72"D-106 357.00$ LF SUBTOTAL THIS PAGE:7,575.00 (B)(C)(D)(E) Page 10 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Version 1/2/2026 Printed 4/3/2026 33 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Quantity Remaining (Bond Reduction) (B)(C) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES Specialty Drainage Items Ditching SD-1 10.90$ CY Flow Dispersal Trench (1,436 base+)SD-3 32.00$ LF French Drain (3' depth)SD-4 30.00$ LF Geotextile, laid in trench, polypropylene SD-5 3.40$ SY Mid-tank Access Riser, 48" dia, 6' deep SD-6 2,300.00$ Each Pond Overflow Spillway SD-7 18.25$ SY Restrictor/Oil Separator, 12"SD-8 1,320.00$ Each Restrictor/Oil Separator, 15"SD-9 1,550.00$ Each Restrictor/Oil Separator, 18"SD-10 1,950.00$ Each Riprap, placed SD-11 48.20$ CY Tank End Reducer (36" diameter)SD-12 1,375.00$ Each Infiltration pond testing SD-13 143.00$ HR Permeable Pavement SD-14 Permeable Concrete Sidewalk SD-15 Culvert, Box __ ft x __ ft SD-16 SUBTOTAL SPECIALTY DRAINAGE ITEMS: (B)(C)(D)(E) STORMWATER FACILITIES (Include Flow Control and Water Quality Facility Summary Sheet and Sketch) Detention Pond SF-1 Each Detention Tank SF-2 Each Detention Vault SF-3 Each Infiltration Pond SF-4 Each Infiltration Tank SF-5 Each Infiltration Vault SF-6 Each Infiltration Trenches SF-7 Each Basic Biofiltration Swale SF-8 Each Wet Biofiltration Swale SF-9 Each 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 Each SUBTOTAL STORMWATER FACILITIES: (B)(C)(D)(E) Page 11 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Version 1/2/2026 Printed 4/3/2026 34 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Quantity Remaining (Bond Reduction) (B)(C) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR DRAINAGE AND STORMWATER FACILITIES WRITE-IN-ITEMS (INCLUDE ON-SITE BMPs) WI-1 WI-2 WI-3 WI-4 WI-5 WI-6 WI-7 WI-8 WI-9 WI-10 WI-11 WI-12 WI-13 WI-14 WI-15 SUBTOTAL WRITE-IN ITEMS: DRAINAGE AND STORMWATER FACILITIES SUBTOTAL:11,025.00 SALES TAX @ 10.5%1,157.63 DRAINAGE AND STORMWATER FACILITIES TOTAL:12,182.63 (B) (C) (D) (E) Page 12 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.c DRAINAGE Version 1/2/2026 Printed 4/3/2026 35 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Connection to Existing Watermain W-1 3,400.00$ Each Ductile Iron Watermain, CL 52, 4 Inch Diameter W-2 58.00$ LF Ductile Iron Watermain, CL 52, 6 Inch Diameter W-3 65.00$ LF Ductile Iron Watermain, CL 52, 8 Inch Diameter W-4 75.00$ LF Ductile Iron Watermain, CL 52, 10 Inch Diameter W-5 80.00$ LF Ductile Iron Watermain, CL 52, 12 Inch Diameter W-6 145.00$ LF Gate Valve, 4 inch Diameter W-7 1,225.00$ Each Gate Valve, 6 inch Diameter W-8 1,350.00$ Each Gate Valve, 8 Inch Diameter W-9 1,550.00$ Each Gate Valve, 10 Inch Diameter W-10 2,100.00$ Each Gate Valve, 12 Inch Diameter W-11 2,500.00$ Each Fire Hydrant Assembly W-12 5,000.00$ Each Permanent Blow-Off Assembly W-13 1,950.00$ Each Air-Vac Assembly, 2-Inch Diameter W-14 3,050.00$ Each Air-Vac Assembly, 1-Inch Diameter W-15 1,725.00$ Each Compound Meter Assembly 3-inch Diameter W-16 9,200.00$ Each Compound Meter Assembly 4-inch Diameter W-17 10,500.00$ Each Compound Meter Assembly 6-inch Diameter W-18 11,500.00$ Each Pressure Reducing Valve Station 8-inch to 10-inch W-19 23,000.00$ Each WATER SUBTOTAL: SALES TAX @ 10.5% WATER TOTAL: (B) (C) (D) (E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR WATER Quantity Remaining (Bond Reduction) (B)(C) Page 13 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.d WATER Version 1/2/2026 Printed 4/3/2026 36 CED Permit #: Existing Future Public Private Right-of-Way Improvements Improvements (D) (E) Description No. Unit Price Unit Quant.Cost Quant.Cost Quant.Cost Quant.Cost Clean Outs SS-1 1,150.00$ Each Grease Interceptor, 500 gallon SS-2 9,200.00$ Each Grease Interceptor, 1000 gallon SS-3 11,500.00$ Each Grease Interceptor, 1500 gallon SS-4 17,200.00$ Each Side Sewer Pipe, PVC. 4 Inch Diameter SS-5 92.00$ LF Side Sewer Pipe, PVC. 6 Inch Diameter SS-6 110.00$ LF Sewer Pipe, PVC, 8 inch Diameter SS-7 120.00$ LF Sewer Pipe, PVC, 12 Inch Diameter SS-8 144.00$ LF Sewer Pipe, DI, 8 inch Diameter SS-9 130.00$ LF Sewer Pipe, DI, 12 Inch Diameter SS-10 150.00$ LF Manhole, 48 Inch Diameter SS-11 6,900.00$ Each Manhole, 54 Inch Diameter SS-13 6,800.00$ Each Manhole, 60 Inch Diameter SS-15 7,600.00$ Each Manhole, 72 Inch Diameter SS-17 10,600.00$ Each Manhole, 96 Inch Diameter SS-19 16,000.00$ Each Pipe, C-900, 12 Inch Diameter SS-21 205.00$ LF Outside Drop SS-24 1,700.00$ LS Inside Drop SS-25 1,150.00$ LS Sewer Pipe, PVC, ____ Inch Diameter SS-26 Lift Station (Entire System)SS-27 LS SANITARY SEWER SUBTOTAL: SALES TAX @ 10.5% SANITARY SEWER TOTAL: (B) (C) (D) (E) SITE IMPROVEMENT BOND QUANTITY WORKSHEET FOR SANITARY SEWER Quantity Remaining (Bond Reduction) (B)(C) Page 14 of 16 Ref 8-H Bond Quantity Worksheet SECTION II.e SANITARY SEWER Version 1/2/2026 Printed 4/3/2026 37 1055 South Grady Way – 6 th Floor | Renton, WA 98057 (425) 430-7200 Date: Name: Project Name: PE Registration No: CED Plan # (LUA): Firm Name:CED Permit # (C): 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)888.97$ Future Public Improvements Subtotal (c)-$ Stormwater & Drainage Facilities (Public & Private) Subtotal (d) (d)12,182.63$ (e) (f) Site Restoration Existing Right-of-Way and Storm Drainage Improvements Maintenance Bond 2,614.32$ Bond Reduction 2 Construction Permit Bond Amount 3 Minimum Bond Amount is $10,000.00 1 Estimate Only - May involve multiple and variable components, which will be established on an individual basis by Development Engineering. 2 The City of Renton allows one request only for bond reduction prior to the maintenance period. Reduction of not more than 70% of the original bond amount, provided that the remaining 30% will cover all remaining items to be constructed. EST1 ((b) + (c) + (d)) x 20% -$ MAINTENANCE BOND */** (after final acceptance of construction) 1,491.75$ 888.97$ 13,516.08$ 1,491.75$ -$ 12,182.63$ -$ 15,007.83$ P (a) x 100% SITE IMPROVEMENT BOND QUANTITY WORKSHEET BOND CALCULATIONS 4/3/2026 Pedro DeGuzman, PE 35646 Terraforma Design Group, Inc. R ((b x 150%) + (d x 100%)) S (e) x 150% + (f) x 100% Bond Reduction: Existing Right-of-Way Improvements (Quantity Remaining)2 Bond Reduction: Stormwater & Drainage Facilities (Quantity Remaining)2 T (P +R - S) Prepared by: Project Information CONSTRUCTION BOND AMOUNT */** (prior to permit issuance) (206) 795-9023 pedro@terraformadesigngroup.com SHERWIN WILLIAMS REMODEL 206 Wells Avenue South, Renton 98057 723150-1135 FOR APPROVAL 5027 51st Avenue SW, Seattle, WA 98136 Page 15 of 16 Ref 8-H Bond Quantity Worksheet SECTION III. BOND WORKSHEET Version 1/2/2026 Printed 4/3/2026 38 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, profit, and taxes. Page 16 of 16 Ref 8-H Bond Quantity Worksheet SECTION III. BOND WORKSHEET Version 1/2/2026 Printed 4/3/2026 39 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. APPENDIX A - SOIL MAPPING A-1 Soil Map—King County Area, Washington (SHERWIN WILLIAMS - RENTON) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/16/2026 Page 1 of 3 52 5 8 9 0 4 52 5 8 9 1 2 52 5 8 9 2 0 52 5 8 9 2 8 52 5 8 9 3 6 52 5 8 9 4 4 52 5 8 9 5 2 52 5 8 9 0 4 52 5 8 9 1 2 52 5 8 9 2 0 52 5 8 9 2 8 52 5 8 9 3 6 52 5 8 9 4 4 52 5 8 9 5 2 559849 559857 559865 559873 559881 559889 559897 559905 559913 559921 559929 559849 559857 559865 559873 559881 559889 559897 559905 559913 559921 559929 47° 28' 52'' N 12 2 ° 1 2 ' 2 0 ' ' W 47° 28' 52'' N 12 2 ° 1 2 ' 1 6 ' ' W 47° 28' 50'' N 12 2 ° 1 2 ' 2 0 ' ' W 47° 28' 50'' N 12 2 ° 1 2 ' 1 6 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84 0 15 30 60 90 Feet 0 5 10 20 30 Meters Map Scale: 1:375 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. A-2 MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: King County Area, Washington Survey Area Data: Version 21, Aug 28, 2025 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 31, 2022—Aug 8, 2022 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—King County Area, Washington (SHERWIN WILLIAMS - RENTON) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/16/2026 Page 2 of 3 A-3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Ur Urban land 0.7 100.0% Totals for Area of Interest 0.7 100.0% Soil Map—King County Area, Washington SHERWIN WILLIAMS - RENTON Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/16/2026 Page 3 of 3 A-4 King County Area, Washington Ur—Urban land Map Unit Composition Urban land: 100 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Urban Land Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydric soil rating: No Data Source Information Soil Survey Area: King County Area, Washington Survey Area Data: Version 21, Aug 28, 2025 Map Unit Description: Urban land---King County Area, Washington SHERWIN WILLIAMS - RENTON Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/16/2026 Page 1 of 1 A-5 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. APPENDIX B - STORMWATER OPERATION & MAINTENANCE MANUAL B-1 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. STORM WATER OPERATION AND MAINTENANCE MANUAL _________________________________________________________________ SHERWIN WILLIAMS REMODEL LOCATION: 206 Wells Avenue South Renton, WA 98057 ISSUE DATE: February 16, 2026 PREPARED BY: Terraforma Design Group, Inc. 5027 51st Avenue SW Seattle, WA 98136 TDG No. 25030 B-2 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Introduction: The proposed Sherwin Williams remodel requires compliance with the Renton drainage requirements. These following guidelines represent the maintenance requirements for the proposed on-site drainage facilities. These requirements shall be performed by the property owner, or maintenance service in accordance with current City codes. Plan Goal The specific purpose for the storm water facility is to minimize pollution that is typically associated with modern development. In general, pollution from motor vehicles and pollution generated from erosion. Attached to this narrative is a maintenance manual, which offers guidelines to the owner for storm water facility maintenance. Also included are practices to prevent pollution during normal retail operations. On-Site Stormwater Facility Maintenance Requirements Regular inspections of the drainage facilities should be carried out twice per year, in the spring and fall. The responsible party should keep records of these inspections available for review by the City. Additional inspections may be required after severe seasonal storms. Routine maintenance of the site will include mowing, care of landscaping and the removal of trash and debris from the drainage system. The parking lots and driveways should be kept clean and in repair. Events such as major storms or heavy winds will require immediate inspections for damages. The following is a list of the on-site storm drainage facilities and their function. Also attached are the required maintenance requirements for these facilities.  Catch Basins - collects surface drainage  Conveyance Pipes - convey catch basin and roof drainage  Landscaping - prevent erosion of unpaved areas B-3 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS SHERWIN WILLIAMS REMODEL DRAINAGE BASIN MAP CB CB B-4 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Responsible Organization: BPG Investments XI LLC 206 Wells Avenue South Renton, WA 98057 Required Best Management Practices for Commercial Properties B-5 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Storage of Solid Waste and Food Wastes B-6 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-7 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. Landscaping Activities and Vegetation Management B-8 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-9 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. LOCATION: 206 Wells Avenue South, Renton, WA 98057 INSPECTION/MAINTENANCE CHECKLIST STRUCTURE DATE OF INSPECTION/MAINTENANCE Results/ Maintenance Date Comments Catch Basins Inspection Results Maintenance Done Conveyance Pipes Inspection Results Maintenance Done Landscaping Inspection Results Maintenance Done Inspection Results Maintenance Done Inspection Results Maintenance Done Inspection Results Maintenance Done * A COPY OF THIS MAINTENANCE LOG SHALL BE COMPLETED BY A DESIGNATED MAINTENANCE PERSON PER THE REQUIRED MAINTENANCE INTERVALS. THESE MAINTENANCE LOGS SHALL BE KEPT ON-SITE. INSPECTION / MAINTENANCE NOTES: B-10 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-11 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-12 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-13 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. B-14 SHERWIN WILLIAMS REMODEL TECHNICAL INFORMATION REPORT Terraforma Design Group, Inc. APPENDIX C - CIVIL PLANS LEGEND CALL AT LEAST 2 WORKING DAYS BEFORE YOU DIG CALL '811' DATUM: DATUM: DATUM: GOVERNING AGENCIES PROPERTY INFO VICINITY MAP PROJECT TEAMPROJECT DATA SHEET INDEX 405 SITE IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ERRAFORMA DESIGN GROUP, INC. NW1/4 OF SW1/4, SEC. 17, T23N, R5E, W.M., CITY OF RENTON, KING COUNTY, WA TDG JOB# 23015 4/3/26 SH E R W I N W I L L I A M S SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 6 R-4402 C2 6 0 0 1 2 3 8 TE D - 4 0 - 4 4 0 2 CIVIL COVER SHEET C1.1 SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 SITEWORK PLANS 1 01 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS LEGEND CALL AT LEAST 2 WORKING DAYS BEFORE YOU DIG CALL '811' DATUM: DATUM: DATUM: IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ERRAFORMA DESIGN GROUP, INC. NW1/4 OF SW1/4, SEC. 17, T23N, R5E, W.M., CITY OF RENTON, KING COUNTY, WA TDG JOB# 23015 4/3/26 SH E R W I N W I L L I A M S SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 6 R-4402 C2 6 0 0 1 2 3 8 TE D - 4 0 - 4 4 0 2 DEMO & TESC PLAN C1.2 2 02 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS LEGEND CALL AT LEAST 2 WORKING DAYS BEFORE YOU DIG CALL '811' DATUM: DATUM: DATUM: SITE NOTES 1 SAWCUT & SEAL EX. ASPHALT PAVING 2 REMOVE EX. A.C. PAVING 3 HOT-MIX ASPHALT PAVING PER DTL. 3/C1.5 4 REMOVE EX. CONCRETE ENTRY CONCRETE PAVING - HVY. DUTY PER DTL. 4/C1.5 5 ADA PARKING STENCIL PER DTL. 5/C1.5 6 ADA PARKING SIGN PER DTL. 6/C1.5 7 CONCRETE WHEELSTOP PER DTL. 7/C1.5 8 4" WIDE WHITE PARKING STRIPE 9 EX. CONC. CURB TO REMAIN 10 SAWCUT & REMOVE EX. CONC. SIDEWALK TO NEAREST JOINT FOR PROPOSED STORM CONNECTION 11 RESTORE CONC. SIDEWALK PER CITY STD. PLAN 102 IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ERRAFORMA DESIGN GROUP, INC. NW1/4 OF SW1/4, SEC. 17, T23N, R5E, W.M., CITY OF RENTON, KING COUNTY, WA TDG JOB# 23015 4/3/26 SH E R W I N W I L L I A M S SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 6 R-4402 C2 6 0 0 1 2 3 8 TE D - 4 0 - 4 4 0 2 SITE PLAN C1.3 3 03 SOUTH 2ND STREET WE L L S A V E N U E S O U T H AL L E Y SHERWIN WILLIAMS STORM NOTES D1 EX. CB (COR# 511256) RIM= 42.30 IE= 40.3± (EX. 8") IE= 40.30 (NEW 8"SE) D2 23' ~ 8" DI,CL50 @ 0.7% MIN. D3 CATCH BASIN TY. 1, GRATE RIM= 42.50 IE= 40.46 (8"W,NW) D4 52' ~ 8" DI,CL50 @ 0.66% D5 CATCH BASIN TY. 1, GRATE RIM= 42.40 IE= 40.80 (8"E) LEGEND CALL AT LEAST 2 WORKING DAYS BEFORE YOU DIG CALL '811' DATUM: DATUM: DATUM: PROFILE - STORM DRAIN D1 D2 D3 D4 D5 SOUTH 2ND STREET IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ERRAFORMA DESIGN GROUP, INC. NW1/4 OF SW1/4, SEC. 17, T23N, R5E, W.M., CITY OF RENTON, KING COUNTY, WA TDG JOB# 23015 4/3/26 SH E R W I N W I L L I A M S SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 6 R-4402 C2 6 0 0 1 2 3 8 TE D - 4 0 - 4 4 0 2 GRADING & STORM PLAN C1.4 4 04 ADA PARKING SIGN ADA PARKING STENCIL HOT-MIX ASPHALT PAVING CONC. PAVING - HEAVY DUTY CONCRETE SLAB / WALK NOTES (ONSITE ONLY) CONCRETE WHEELSTOP CONCRETE HANDLING NOTES EROSION CONTROL NOTES A.MAY 1 TO SEPTEMBER 30 - DRY SEASON AREAS LEFT UNWORKED FOR MORE THAN 7 DAYS MUST BE STABILIZED. B.OCTOBER 1 TO APRIL 30 - WET SEASON AREAS LEFT UNWORKED FOR MORE THAN 2 DAYS MUST BE STABILIZED. C.INSPECTION SCHEDULE: APPLICANT/CONTRACTOR SHALL INSPECT EROSION CONTROL FACILITIES DAILY AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTIONING. CONTRACTOR SHALL PROVIDE NEEDED REPAIRS TO EROSION/SEDIMENT CONTROL FACILITIES WITHIN 24 HOURS. 11. — — — — — — STRAW WATTLE CATCH BASIN INSERT SIGN TO BE WALL-MOUNTED IN COMPLIANCE WITH CITY OF RENTON STANDARDS T ERRAFORMA DESIGN GROUP, INC. NW1/4 OF SW1/4, SEC. 17, T23N, R5E, W.M., CITY OF RENTON, KING COUNTY, WA TDG JOB# 23015 4/3/26 SH E R W I N W I L L I A M S SHERWIN WILLIAMS REMODEL 206 WELLS AVENUE SOUTH, RENTON, WA 98057 6 R-4402 C2 6 0 0 1 2 3 8 TE D - 4 0 - 4 4 0 2 CIVIL DETAILS & NOTES C1.5 5 05 NW 1/4 OF THE SW 1/4 OF SEC. 17, T. 23 N., R. 5 E., W.M. 04 / 0 2 / 2 6 BB A La n d S u r v e y i n g Ph : 2 0 6 . 4 0 6 . 1 2 5 7 ni c o l e b @ b b a s u r v e y i n g . c o m ww w . b b a s u r v e y i n g . c o m DA T E RE V I S I O N DR N JOB NO. DRAWN BY: CHECKED BY: DATE: SHEET 2 0 2 5 , B B A L A N D S U R V E Y I N G , L L C , A L L R I G H T S R E S E R V E D C AL T A / N S P S L A N D T I T L E S U R V E Y SH E R W I N - W I L L I A M S 20 6 W E L L S A V E S RE N T O N , W A 9 8 0 5 7 12 / 1 5 / 2 0 2 5 12 / 1 7 / 2 0 2 5 04 / 0 2 / 2 0 2 6 SU R F A C E M O D E L F O R P A R K I N G L O T A N D A L L E Y DO O R S W I N G S A D D E D DA T U M U P D A T E S MA B MA B MA B MAB RSN 25183 10/23/2025 1 OF 1 LOTS 1 & 2, BLOCK 13, TOWN OF RENTON, ACCORDING TO THE PLAT THEREOF, RECORDED IN VOLUME 1 OF PLATS, PAGE 135, IN KING COUNTY, WASHINGTON; EXCEPT THE EAST 5 FEET THEREOF CONVEYED TO THE CITY OF RENTON BY DEED RECORDED UNDER RECORDING NO. 7905070627. LEGAL DESCRIPTION N WASHINGTON COORDINATE SYSTEM, NAD83(91), NORTH ZONE, DERIVED FROM WASHINGTON STATE REFERENCE NETWORK - ACCEPTED THE BEARING OF N 28°01'52" E BETWEEN THE SOUTH QUARTER CORNER OF SECTION 19, TOWNSHIP 23 N., RANGE 5 E., W.M., AND THE INTERSECTION OF SHATTUCK AVE S AND LINDHOLM AVE, BEING CITY OF RENTON SURVEY CONTROL POINT NOS. 1160 AND 476, RESPECTIVELY, BASED ON FOUND MONUMENTS IN CASE. BASIS OF BEARINGS LEGEND EXTENDED TITLE INSURANCE SURVEY PURPOSE SURVEYOR'S NOTES 1.THE INFORMATION ON THIS MAP REPRESENTS THE RESULTS OF A SURVEY MADE IN OCTOBER 2025 AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS EXISTING AT THAT TIME. 2.INSTRUMENTATION FOR THIS SURVEY WAS A 3-SECOND LEICA TS16 ROBOTIC TOTAL STATION AND/OR LEICA GS16 GPS RECEIVER. PROCEDURES USED IN THIS SURVEY MEET OR EXCEED STANDARDS SET BY WAC 332-130-090. 3.UTILITIES SHOWN ON THIS SURVEY ARE BASED UPON ABOVE GROUND OBSERVATIONS AND AS-BUILT PLANS WHERE AVAILABLE. ACTUAL LOCATIONS OF UNDERGROUND UTILITIES MAY VARY AND UTILITIES NOT SHOWN ON THIS SURVEY MAY EXIST ON THIS SITE. 4.SUBJECT PROPERTY TAX PARCEL NO. 7231501135. 5.APPROXIMATE SUBJECT PROPERTY AREA IS: 11,513 S.F. (0.26± ACRES) AS SURVEYED 6.ALL TITLE INFORMATION SHOWN ON THIS MAP HAS BEEN EXTRACTED FROM FIRST AMERICAN TITLE INSURANCE COMPANY'S "ALTA COMMITMENT FOR TITLE INSURANCE", CERTIFICATE NO. NCS-1278727-WA1, DATED SEPTEMBER 18, 2025. IN PREPARING THIS MAP, BBA LAND SURVEYING HAS CONDUCTED NO INDEPENDENT TITLE SEARCH NOR IS BBA LAND SURVEYING AWARE OF ANY TITLE ISSUES AFFECTING THE SURVEYED PROPERTY OTHER THAN THOSE SHOWN ON THE MAP AND DISCLOSED BY THE REFERENCED "ALTA COMMITMENT FOR TITLE INSURANCE". BBA LAND SURVEYING HAS RELIED WHOLLY ON FIRST AMERICAN TITLE INSURANCE COMPANY'S REPRESENTATIONS OF THE TITLE'S CONDITION TO PREPARE THIS SURVEY AND BBA LAND SURVEYING QUALIFIES THE MAP'S ACCURACY AND COMPLETENESS TO THAT EXTENT. 7.THE PROPERTY IS LOCATED WITHIN AN AREA HAVING A ZONE DESIGNATION "X", PER THE FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA), ON FLOOD INSURANCE RATE MAP NO. 53033C0977G, WITH AN EFFECTIVE DATE OF AUGUST 19, 2020 FOR COMMUNITY NO. 530088, IN THE CITY OF RENTON, KING COUNTY, STATE OF WASHINGTON, WHICH IS THE CURRENT FLOOD INSURANCE RATE MAP FOR THE COMMUNITY IN WHICH THE PROPERTY IS SITUATED. 8.SUBJECT PROPERTY IS ZONED CD (COMMERCIAL DOWNTOWN), PRESENTLY USED FOR SHERWIN-WILLIAMS. SETBACK REQUIREMENTS: MINIMUM FRONT YARD: FOR BUILDINGS, OR PORTIONS THEREOF, 25 FEET OR LESS IN HEIGHT, THE MAXIMUM FRONT YARD SETBACK IS 15 FEET. MINIMUM REAR YARD: NONE, UNLESS THE GROUND FLOOR FAÇADE PROVIDES WINDOWS FOR LIVING ROOMS OF ATTACHED DWELLINGS, THEN 10 FEET. MINIMUM SIDE YARD: NONE. MAXIMUM BUILDING HEIGHT: NOT FOUND IN CODE MAXIMUM LOT COVERAGE FOR BUILDINGS: NONE MINIMUM LOT SIZE: NONE FOR LOTS CREATED AFTER JULY 11, 1993. PARKING REQUIREMENT: MINIMUM PARKING: PARKING REQUIREMENTS ARE DETERMINED BY THE SPECIFIC USE AND ARE OUTLINED IN RMC CHAPTER 4-4-060, OFF-STREET PARKING AND LOADING. THE ABOVE ZONING INFORMATION IS PER RENTON MUNICIPAL CODE (RMC), CHAPTER 4-2-120B AND RELATED SECTIONS. IT WAS NOT PROVIDED BY THE INSURER AS IS REQUIRED BY THE 2021 ALTA/NSPS STANDARDS FOR LAND TITLE SURVEYS. ALL ZONING INFORMATION SHALL BE VERIFIED PRIOR TO USE. 9.THE TOTAL NUMBER OF DESIGNATED PARKING SPACES ON THE PROPERTY IS 11, INCLUDING 10 STANDARD SPACES AND 1 HANDICAP SPACE. 10. THERE IS NO OBSERVED EVIDENCE OF CURRENT EARTH MOVING WORK, BUILDING CONSTRUCTION OR BUILDING ADDITIONS AT THE PROPERTY. 11. THERE IS NO OBSERVED EVIDENCE OF USE OF THE PROPERTY AS A SOLID WASTE DUMP, SUMP OR SANITARY LANDFILL. 12.THERE IS NO EVIDENCE OF ANY PROPOSED CHANGES IN STREET RIGHT OF WAY LINES AT THE PROPERTY. 13.THERE WERE NO WETLAND DELINEATION MARKERS AT THE PROPERTY. TO:EDWARD ORDEMANN, MICHAEL F. FLETCHER AND LINDA FLETCHER AND FIRST AMERICAN TITLE INSURANCE COMPANY; THIS IS TO CERTIFY THAT THIS MAP OR PLAT AND THE SURVEY ON WHICH IT IS BASED WERE MADE IN ACCORDANCE WITH THE 2021 MINIMUM STANDARD DETAIL REQUIREMENTS FOR ALTA/NSPS LAND TITLE SURVEYS, JOINTLY ESTABLISHED AND ADOPTED BY ALTA AND NSPS, AND INCLUDES ITEMS 2 - 4, 6 - 9, 11, 13, 14, 16, 18, OF TABLE A, THEREOF. THE FIELD WORK WAS COMPLETED ON OCTOBER 18, 2025. MATTERS OF TITLE NUMBERING CORRESPONDS WITH HEREIN-REFERENCED TITLE COMMITMENT 12.RESTRICTIONS, CONDITIONS, DEDICATIONS, NOTES, EASEMENTS AND PROVISIONS, IF ANY, AS CONTAINED AND/OR DELINEATED ON THE FACE OF THE PLAT OF TOWN OF RENTON RECORDED AS VOLUME 1 OF PLATS, PAGE(S) 135, IN KING COUNTY, WASHINGTON. (NO ADDITIONAL PLOTTABLE INFO) 13.THE TERMS AND PROVISIONS CONTAINED IN THE DOCUMENT ENTITLED "HOLD HARMLESS AGREEMENT" RECORDED AUGUST 08, 2005 AS RECORDING NO. 20050808002719 OF OFFICIAL RECORDS. AT THE DATE OF RECORDING OF THE DOCUMENT, THE PARTIES THERETO HAD NO RECORD INTEREST IN THE LAND. (SHOWN HEREON) 14.ANY RIGHT, TITLE OR INTEREST OF PARKER PAINT MANUFACTURING CO. INC, AS DISCLOSED BY THE DOCUMENT RECORDED AUGUST 08, 2005 AS RECORDING NO. 20050808002719 OF OFFICIAL RECORDS. (SHOWN HEREON) MARK A. BORYS PLS# 46876 DATE 03/31/26 GRAPHIC SCALE 0 1 INCH = FT. 201055 10 CONTROL DIAGRAM NTS NAVD88 - ELEVATIONS SHOWN ON THIS DRAWING WERE DERIVED FROM INFORMATION PROVIDED BY CITY OF RENTON SURVEY CONTROL DATABASE. POINT ID NO. 476 - FOUND CONCRETE MONUMENT WITH BRASS PLUG, DOWN 1.0' IN CASE AT THE INTERSECTION OF SHATTUCK AVE S AND LINDHOLM AVE. ELEVATION: 132.86 FEET 2.0' CONTOUR INTERVAL ARE DERIVED FROM DIRECT FIELD OBSERVATIONS - THE EXPECTED VERTICAL ACCURACY IS EQUAL TO 1/2 CONTOUR INTERVAL OR ± 1.0' FOR THIS PROJECT VERTICAL DATUM & CONTOUR INTERVAL MATCH LINE MATCH LINE SV1 TE D - 4 0 - 4 4 0 2 R-440206 C2 6 0 0 1 2 3 8 6 OF 6