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22-102498-UPII-Simplified Technical Information Report-06-01-2022-V1Commons at Federal Way Pad H – Dick’s Drive-in Water Quality Treatment Update Simplified Technical Information Report June 1, 2022 Prepared for Smith Company 603 Stewart Street, Suite 610 Seattle, WA 98101 Submitted by ESM Consulting Engineers, LLC 33400 8th Avenue S, Suite 205 Federal Way, WA 98003 253.838.6113 tel 253.838.7104 fax www.esmcivil.com \\esm8\engr\esm-jobs\2013\001\018\document\rprt-004.docx Table of Contents 1. Project Overview ...............................................................................................................1 2. Conditions and Requirements Summary ...........................................................................4 3. Off-Site Analysis ................................................................................................................6 4. Flow Control & Water Quality Facility Analysis and Design ................................................7 5. Conveyance System Analysis and Design .........................................................................8 6. Special Reports and Studies .............................................................................................9 7. Other Permits ..................................................................................................................10 8. ESC Analysis and Design ................................................................................................11 9. Bond Quantities, Facility Summaries, and Declaration of Covenant ................................12 10. Operations and Maintenance .........................................................................................13 Appendix A: Reference Maps ..............................................................................................14 Appendix B: Developed Site Conditions ..............................................................................15 1 1. Project Overview The purpose of this report is to encapsulate the documents and analysis required by the City of Federal Way (City) for the Dick’s Drive-in project in the form of a Simplified Technical Information Report (report) that will be located at Pad H within Sub-Basin #1 of The Commons at Federal Way. Sub-Basin #1 has been upgraded from Basic to Enhanced Water Quality Treatment as documented in a previously submitted Commons at Federal Way Sub-Basin #1 Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated November 23, 2021. Furthermore, the Pad H parking area has been completed as part of the Pad H – Site Only construction plans (City of Federal Way No. 22-101773-CO) with the associated Commons at Federal Way Pad H Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated December 17, 2021. The project is considered a redevelopment site because the existing impervious surface coverage is more than 35%. Existing Site: The Commons at Federal Way – Sub-Basin #1 (Commons) project site is located in the NW quarter of Section 16, Township 21, Range 04E, W.M., at 1701 S Commons in the City of Federal Way, WA. The site (0.23 acres) is located on King County parcel 7622400015 (11.48 acres) and is zoned CC-C. See Figure 1.1 for the vicinity map and the existing site conditions. Existing Site Hydrology: The project site is currently developed as parking lot with landscaping, lighting, and storm drainage facilities and has been developed for the Dick’s Drive-in up to the curb, as part of Pad H – Site Only construction plans. The area in and around the project site is generally flat and is located in the Hylebos Creek drainage basin (WRIA number: 10). See Section 3 for more information and Appendix D for soils information. Stormwater runoff from the parking lot area is collected an existing conveyance system. Proposed Site Improvements: The proposed development includes the construction of the Dick’s Drive-in and associated sidewalk, patio, utility services, and landscaping on 0.23 acres. See Appendix B for the proposed site improvements. Proposed Site Hydrology: Stormwater will continue to generally flow as it is currently routed in the existing stormwater drainage system. Flow Control: Flow control for the entire Commons property (which includes the proposed improvements in the project site) is provided by existing detention facilities. Since this project is considered a redevelopment site, flow control mitigation is not required. Flow Control BMP’s: Since flow control is not required for this redevelopment project, Flow control BMPs are also not required. 2 Water Quality Treatment: The entire Commons property was updated to (at the time) current water quality standards between 2005 and 2014 to meet the standards of the 2009 King County Surface Water Design Manual (SWDM). The property was divided into 14 water quality sub-basins and Sub-Basin #1 was recently upgraded to meet the Enhance Water Quality Treatment criteria of the 2021 SWDM, which is the current water quality mitigation standard for the project site. The project site is located within water quality Sub-Basin #1 and will use the recently upgraded existing water quality treatment facility to provide mitigation for runoff from the project site. Refer to the November 23, 2021 TIR and Section 4 of this report for more information. 3 Figure 1.1 – Vicinity Map 4 2. Conditions and Requirements Summary Review of the 9 Core Requirements and 5 Special Requirements This section describes how the project will meet the SWDM Core and Special Requirements (as applicable). Core Requirement No. 1 Discharge at the Natural Location The entire site is fully developed and will continue to drain to the natural discharge location upon project completion. Core Requirement No. 2 Off-site Analysis The off-site analysis has been documented in Section 3. Core Requirement No. 3 Flow Control Flow Control is not required for this project because it is a redevelopment site. Core Requirement No. 4 Conveyance System Stormwater conveyance will perform as it does in the existing condition because the net impervious area onsite will be slightly reduced from the original design conditions for the existing conveyance system and the proposed system will use components (pipes, catchbasins, etc.) of equal or greater capacity. No conveyance calculations are needed for this project. Core Requirement No. 5 Erosion and Sediment Control Erosion and sediment controls to prevent the transport of sediment from the project site to downstream drainage facilities, water resources, and adjacent properties is provided in Section 8 of this report and on the construction plans. Core Requirement No. 6 Maintenance and Operations The Operations and Maintenance manual is included in Section 10 of this report. Core Requirement No. 7 Financial Guarantees and Liability All drainage facilities constructed or modified for projects will comply with the financial guarantee requirements as provided in the King County Bond Quantities Worksheet. Bond Quantities will be provided upon request. Core Requirement No. 8 Water Quality Enhanced Basic Water Quality Treatment will be provided by a water quality filter vault for Sub-Basin #1. Refer to the November 23, 2021 TIR and Section 4 of this report for more information. Core Requirement No. 9 Flow Control BMP’s Since flow control is not required for this redevelopment project, Flow control BMPs are also not required. 5 Special Requirement No. 1 Other Adopted Area-Specific Requirements This project does not have any Adopted Area-Specific Requirements; therefore, Special Requirement No. 1 does not apply. Special Requirement No. 2 Flood Hazard Area Delineation The developed project site location is not in a 100-year floodplain. Special Requirement No. 2 does not apply. Special Requirement No. 3 Flood Protection Facilities The developed project site is not protected by an existing flood protection facility. The proposed site improvements do not include the modification of an existing flood protection facility. Special Requirement No. 3 does not apply. Special Requirement No. 4 Source Control No source control measures are being proposed at this time for the site. Special Requirement No. 5 Oil Control The project does not have a “high-use site characteristic” and is not a redevelopment of a high-use site. Special Requirement No. 5 does not apply. 6 3. Off-Site Analysis A complete downstream analysis of the Creekside Commons development per Core Requirement #2 has been completed as part of the Commons at Federal Way Sub-Basin #1 Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated November 23, 2021 and is included following this section. This narrative is to provide a Level 1 Downstream Analysis for the proposed Creekside Commons development per Core Requirement #2, Section 1.2.2 of the 2016 King County Surface Water Design Manual (SWDM). The analysis is to identify and evaluate offsite flooding, erosion, and water quality problems that may be created or aggravated by the proposed project. The primary component of this offsite analysis is the downstream corridor. The second component is to evaluate the upstream drainage system to verify any offsite run-on that may impact the project. The following Level 1 downstream analysis is a qualitative survey of the downstream system of the project site and is composed of the following four tasks: Task 1 – Define and map the study area Task 2 – Downstream Resource Review for 1-mile downstream Task 3 – Field Inspection Task 4 – Drainage System Description and Problem Descriptions Task 1: Study Area Definition and Maps The project site is located within the Hylebos Creek Drainage basin, within the Puyallup River watershed which is a part of the Puyallup-White water resource inventory area (WRIA #10). The drainage study area is approximately 0.25 miles downstream from the site’s natural discharge location which comprises the site’s downstream corridor; however, approximately 1 mile is shown on the figures in this section of the report. The study area also includes a quarter mile downstream investigation of stormwater released from the project site. Figure 3.2 for the Downstream Analysis Flow Path and a map of the basic study area. Task 2: Resource Review Flow Control Map According to the Federal Way Flow Control Applications Map, the project is located within the Conservation Flow Control Area. Site Soils According to public soils information available in the Geotechnical Engineering Report by GeoTest Services, Inc., dated July 23, 2019, soils onsite include Vashon Till and is generally flat. Refer to Figure 1.3 of this report for the soils map from Web Soil Survey and the geotechnical report in Appendix D of this report for more information. Federal Way Critical Areas Map According to Federal Way Critical Areas map ( included at the end of this section of the report): Drainage Basin – The project is located within the Hylebos Creek drainage basin. Wetlands – There appear to be no wetlands indicated onsite. Streams – An unnamed creek is formed at the outfall of the existing piped public stormwater conveyance system (approximately 1 mile downstream of the project site discharge) and is tributary to Hylebos Creek. Erosion Hazard Area – None mapped onsite. Landslide Hazard Area – None mapped onsite. Lakes – None mapped onsite. Downstream Drainage Complaints Drainage complaints within the downstream corridor were found on King County iMap. Upon further study of these complaints, it was concluded there are currently no relevant open drainage complaints with the scope of the downstream analysis corridor. See Figure 3.2 for locations of existing downstream drainage complaints. Water Quality Assessment The Department of Ecology Water Quality Assessment 303(d)/305(b) lists were reviewed to see if there are any known downstream water quality concerns. Waters whose beneficial uses are impaired by pollutants that require a water improvement project are placed in the polluted water category (Category 5) and put on the 303(d) list. The 305(b) lists all waters and all categories. Pollutants of concerns could be Bacteria, Dissolved oxygen, temperature, metals, phosphorus, turbidity, or high pH. From the site, water is tributary to an unnamed Creek (tributary to Hylebos Creek) located approximately 1 mile downstream. According to the assessment, this unnamed Creek is classified as Category 5 water for copper, lead, zinc, and pH; however, this threshold does not necessitate further mitigation at this time. See Figure 3.1 in Task 4 for a map of the Water Quality Assessment. Designated water quality problems There are no designated water quality problems known at this time. Task 3: Field Inspection (Level 1 Inspection) A site visit was conducted on May 18, 2021, by ESM Consulting Engineers for the purpose of analyzing the project site and its upstream and downstream corridors. The weather conditions were sunny and approximately 69°F. A description of the drainage path is provided below. Refer to Figure 3.2 at the end of the downstream analysis for a map of the downstream flowpath and reference points. Upstream and onsite runoff Due to the existing topography of the site and the surrounding area, the site has no upstream areas tributary to the existing onsite stormwater facilities. Stormwater runoff generated from the existing development on the project site is generally collected in catch basins and piped to Lake 21 in the southwest corner of The Commons parcel group (at the intersection of S 324th Street & SR 99). Natural Discharge #1 Downstream Corridor The following reaches describe the downstream corridor from the point of discharge (Point #1 in Figure 3.1) from the site for a quarter mile. 0-ft to >1300-ft Upon leaving the site, stormwater continues in a piped conveyance system to the headwater of unnamed Creek at Point #2. The piped conveyance system path is highlighted in Figure 3.1. Task 4: Drainage Description and Problem Descriptions The downstream drainage system is comprised of an existing piped public stormwater conveyance system. See Task 3 for a narrative of the downstream flow path for a quarter mile downstream of the site. Downstream Drainage Problems There are no known or observed conveyance system nuisance problems, severe erosion, or flooding problems. Downstream Water Quality Problems Zinc, copper, lead, and pH problems were noted approximately 1 mile downstream, as noted in Task 2 of the Offsite Analysis. These water quality problems are beyond the quarter mile threshold to warrant mitigation as suggested in the SWDM Section 1.2.2.3. See Figure 3.3 below for a map of the classified 303(d) areas downstream of project site and Section 4 of this report for details regarding the proposed Enhanced Water Quality Treatment to prevent further agitation of these existing downstream problems. Ю±¶»½¬ Í·¬» Ù®»»² Ø·¹¸´·¹¸¬ ¼»²±¬»­ ¬¸» »­¬·³¿¬»¼ º´±© °¿¬¸ ©·¬¸·² ¬¸» »¨·­¬·²¹ °·°»¼ ­¬±®³©¿¬»® ½±²ª»§¿²½» ­§­¬»³ò Figure 3.1 - Downstream Flowpath б·²¬ ýï б·²¬ ýî ß°°®±¨·³¿¬»´§ ï ³·´» ¼±©²­¬®»¿³ King County Date: 5/19/2021 Notes:±The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a survey product. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on this map is prohibited except by written permission of King County. Legend index contours - 100 foot contours - 5 foot (below 1000 feet) and 10 foot Potential landslide hazard areas (2016, see explanation--->) Erosion hazard (1990 SAO) Seismic hazard (1990 SAO) Coal mine hazard (1990 SAO) Stream (1990 SAO) class 1 class 2 perennial class 2 salmonid class 3 unclassified Wetland (1990 SAO) Sensitive area notice on title Streams Bridges owned by King County Freeways freeway freeway ramp Arterial streets arterial street, principal arterial street, collector arterial street, minor Local streets and roads local street local access road, alley, or other Stormwater facilities Bonded Commercial-MF Commercial-SF Construction DOT FMD Regional Residential Drainage complaints Figure 3.2 - Drainage Complaints Ю±¶»½¬ Í·¬» ß°°®±¨·³¿¬»´§ ï ³·´» ¼±©²­¬®»¿¬³ Figure3.3-WaterQualityAtlas SW 312th St SW 320th St S 288th St S 272nd St S 312th St S 272nd St SW 320th St S 336th St SW 344th St PavillionsCenter Celebration Center SeaTac Village Pal-do World Plaza The Commons at Federal Way Gateway Center Twin Lakes Village Campus Square Federal Way Marketplace Federal Way Crossings Lakehaven Treatment Center (Redondo) Lakehaven Treatment Center (Lakota)Lake Grove Elem. Lake Dolloff Elem. Lakeland Elem Valhalla Elem. Silver Lake Elem. Wildwood Elem. Brigadoon Elem. Twin Lakes Elem. Adelaide Elem. Sherwood Forest Elem. Panther Lake Elem. Camelot Elem. Nautilus Elem. Mark Twain Elem. Rainier View Elem. Olympic View Elem.Green Gables Elem. Enterprise Elem. Mirror Lake Elem. Star Lake Elem. Illahee Middle School Lakota Middle School Sacajawea Middle School Kilo Middle School Totem Middle School Saghalie Middle School Sequoyah Middle School Public Academy Decatur High School Federal Way High School Thomas Jefferson High School Todd Beamer High School Truman H.S. Golf Golf Twin Course Course Lakes Northshore Golf Course Star Lake Park & Ride Federal Way/ S 320th Street Park & Ride Twin Lakes Park & Ride South Federal Way Park & Ride Redondo Heights Park & Ride Transit Center Dumas Bay Centre & Federal Way Community Center Knutzen Theater Steel Lake Annex City Hall Steel Lake Park Celebration Lakota Sacajawea Park FrenchParkLakePark Park Dumas Bay Park Adelaide Park Camelot Park Dash Point State Park SaghaliePark Lake Geneva Park GlenNelsonPark West Hylebos Wetlands Park Five Mile Lake Park Bingaman Pond Park Laurelwood Park Spring Valley Open Space Fisher'sPond Panther Lake Open Space Park PovertyBay Open Space Pacific RimBonsai Collection Rhododendron SpeciesBotanical Garden EnchantedPark King County Pierce County King County Pierce County Fire Station 65 Fire Station 61 FireStation 64 Fire Station 63 Training Center Fire Station 62 Fire Station 66 Federal Way Regional Library 320th Street Library Fife Milton Tacoma Des Moines Edgewood Pacific Auburn Federal Way Kent Puget Sound BayDumas PovertyBay Commencement Bay Lake Steel Star Lake MirrorLake Geneva Lake North Lake Lorene Lake Jeane Lake Easter Lake Trout Lake Five Mile Lake 161 99 !"#$5 99 !"#$5 !"#$5 509 18 509 509 161 99 509 509 White River Mill Creek Hylebos Creek Lower Puget Sound Lower Green River Hylebos Creek Lower Puget Sound 5 City of Federal Way Critical Areas Map Map Date: September, 2012 City of Federal Way, GIS Division 33325 8th Ave S Federal Way, WA 98003 (253) 835-7000 www.cityoffederalway.com ´ This map is accompanied by NO warranties, and is simply a graphic representation.J:\standard\reference\sensitive.mxd King County Hylebos Creek Lower Green River Lower Puget Sound Mill Creek White River Erosion Hazard Area Landslide Hazard Areas Wetlands (1998 City Survey) Lakes Streams Drainage Basins:Critical Areas:Water Features: Legend: Boundaries are approximate. Remember, ADDITIONAL SENSITIVE AREAS MAY EXIST. See Map Notes below for more information. Map Notes: Wetlands and streams were identified in a 1998 City of Federal Way survey. Data for the Landslide hazard and erosion hazard areas is provided by King County. Drainage basin boundaries within city limits have been verified by the City of Federal Way. Basin boundaries outside of city limits are provided by King County and have not been verified by the City of Federal Way. Critical area information is provided for illustrative purposes ONLY. Actual boundaries are subject of field verification. ADDITIONAL CRITICAL AREAS MAY EXIST. Critical areas in Pierce County are not shown. The City of Federal Way shall not be liable for any damages due to the use or misuse of the information represented on this map. Wetlands are only shown in Federal Way and its Potential Annexation Area. Contact the City for an explanation of these areas and the regulations that govern them. Source: City of Federal Way, King County 0 0.5 10.25 Miles Scale: 50 Acres 5 20 47°15'5.46831"N 47°21'46.42899"N 47°21'46.42899"N 47°15'5.46831"N A B C D E F A B C D E F 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Ю±¶»½¬ Í·¬» 7 4. Flow Control & Water Quality Facility Analysis and Design Existing Site Hydrology: The project site is currently developed as parking lot with landscaping, lighting, and storm drainage facilities. Developed Site Hydrology: The developed condition of this project will drain to the same location as existing with very similar flow rates due to the similarity in the land use type proportion. Since the project site will remain predominantly impervious and match the existing stormwater drainage characteristics, the site will have hydrology that matches the existing conditions. The basin areas are summarized below: Proposed Area (acres) Dick’s Drive-in Roof 0.10 Sidewalk 0.13 Pad H Site only Pavement 0.29 Total Impervious 0.52 Landscaping 0.09 Total Area 0.61 Flow Control: Flow control for the entire Commons property (which includes the proposed improvements in the project site) is provided by existing detention facilities. Since this project is considered a redevelopment site, flow control mitigation is not required. Flow Control BMP’s: Since flow control is not required for this redevelopment project, Flow control BMPs are also not required. Water Quality System: Condition #18 of the Findings for Approval of the Process III Project Approval for this project site requires that the project provide enhanced water quality treatment. Enhanced water quality treatment is provided by the BioPod filter vault that was installed as part of the previous project (City of Federal Way No. 21-104976-EN). See November 23, 2021 TIR. 8 5. Conveyance System Analysis and Design The total area draining to Sub-Basin #1 will not be changed with the proposed Dick’s Drive-in development, the existing stormwater conveyance system is anticipated to continue to operate as under current conditions; therefore, conveyance or backwater calculations are not provided. 9 6. Special Reports and Studies The following reports (previously submitted) were used as a reference in preparing this Simplified Technical Information Report: ·Geotechnical Engineering Report by GeoTest Services, Inc., dated July 13, 2019 ·Commons at Federal Way by ESM Consulting Engineers, LLC, dated March 2005 ·Future Pads C, D, E, F, & G: Commons at Federal Way by ESM Consulting Engineers, LLC, dated February 2006. ·Memorandum to Kevin Peterson, City of Federal Way, by ESM Consulting Engineers, LLC, dated March 13, 2013. ·Commons at Federal Way Sub-Basin #1 Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated November 23, 2021. ·Commons at Federal Way Pad H Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated December 17, 2021. 10 7. Other Permits Building permit will be required for this project, together with permits for utility connections. 11 8. ESC Analysis and Design The project disturbance area will be delineated with high-visibility fencing. Since the proposed improvements will only expose soils below the existing pavement surface in the surrounding area, the following BMPs are proposed to limit the amount of potential sediment transport during construction: ·Construction Entrance ·High visibility fence ·Silt Fence ·Catch Basin Inlet Protection The Erosion and Sedimentation Control Analysis is provided on the construction plans for Pad H – Dick’s Drive-in. 12 9. Bond Quantities, Facility Summaries, and Declaration of Covenant The Bond Quantities worksheet will be provided upon request. 13 10. Operations and Maintenance This section is not applicable to this project since it does not include any proposed stormwater system elements. The operations and maintenance elements of the Pad H – Site Only project is included in the Commons at Federal Way Pad H Water Quality Treatment Update Final Modified Technical Information Report by ESM Consulting Engineers, LLC, dated December 17, 2021. Appendix A: Reference Maps This portion of sub-basin #2 will drain to sub-basin #1 (0.17 Ac) This portion of sub-basin #14 will drain to sub-basin #1 (0.24 Ac) Appendix B: Developed Site Conditions PB IR IR PB S PB PB IR PB PB PB IR P IR IR PB S PB PB IR PB PB PB IR P PB S PB IR PB S PB IR IR IRIR S PB IR PB S PB IR IR IRIRPIVµ ΒΝΜΣΝΤΘ ΗΜΣ∆ΘΥ≅Κ < 0& ΡΒ≅Κ∆9 0! < 0 10 1/& 4020 Ο≅ΒΗΕΗΒ ΓςΞ Ρ PACIFIC HWY S{(PUBLIC RIGHT OF WAY)} N ETRAB .G A RU A 40111ANO R WFOE A SH NGTON T E R ED SG ENG NEE EFOR P TS SS TA ER N A E G H NO.DESCRIPTION/DATE BY REVISIONS DWG. NAME: DESIGNED BY: DRAWN BY: CHECKED BY: DATE: OF SHEETS JOB NO.: PRINT: DATE OF \\\\Esm8\\engr\\ESM-JOBS\\2013\\001\\018\\plots\\Pad H Dicks\\ST-01.dwg5/24/2022 8:54 AMPlotted:File:Plotted By: Greg FedoreEVERETTFEDERAL WAYΒ Ν Μ Ρ Τ Κ Σ Η Μ Φ ∆ Μ Φ Η Μ ∆ ∆ Θ ΡΚ Κ ΒCivil EngineeringProject ManagementLand SurveyingLandscape ArchitectureLand Planningwww.esmcivil.com(253) 838-6113(425) 297-9900Public WorksΕδχδθκ ςξ+ ς≅ 87//2223// 7σγ ≅υδ Ρ+ Ρτησδ 1/4≅ ΟΝΘΣΗΝΜ ΝΕ Μς 0.3 ΝΕ Ρ∆ΒΣΗΝΜ 04 ≅ΜΧ ΣΓ∆ Μ∆ 0.3 ΝΕ Ρ∆ΒΣΗΝΜ 05+ Σ− 10 Μ−+ Θ− 3 ∆−+ ς−Λ− ϑΗΜΦ ΒΝΤΜΣΞ+ ς≅ΡΓΗΜΦΣΝΜ ΧΗΒϑ&Ρ ΧΘΗΥ∆,ΗΜ Θ∆ΡΣ≅ΤΘ≅ΜΣΡΧΗΒϑ&Ρ ΧΘΗΥ∆,ΗΜ Ε∆Χ∆Θ≅Κ ς≅ΞHORIZONTAL CONTROL, SITE & PAVING PLANWASHINGTONCITY OF FEDERAL WAY2013-001-018 ST-01 LGB GFF 05/30/2022 ΡΣ,/0 3 00 Ο≅Χ Γ PAD H {(4,191 SF)}∆ΩΗΡΣΗΜΦ ∆ΜΣΘΞ ΧΘΗΥ∆OUTDOOR PATIO Κ∆Φ∆ΜΧ CONCRETE PAVING \A1;5.5' PAD I SEE SEPARATE CONSTRUCTION PLAN ϑ∆Ξ ΜΝΣ∆Ρ APPROVED DATE PERMIT NO. PAD H DICK'S NOTE: THIS APPROVAL IS VOID 1 (ONE) YEAR AFTER APPROVAL DATE. THE CITY WILL NOT BE RESPONSIBLE FOR ERRORS AND/OR OMISSIONS ON THESE PLANS. FIELD CONDITIONS MAY DICTATE CHANGES TO THESE PLANS AS DETERMINED BY THE CITY ENGINEER. DRY UTILITY TRENCH ∆ΩΗΡΣΗΜΦ ∆ΜΣΘΞ ΧΘΗΥ∆- CEMENT CONCRETE SIDEWALk \pxsm2.3;SEE SHEETS DT-01 - DT-03 FOR DETAILS. OUTDOOR PATIO \A1;10'\A1;10' \A1;12.1' \A1;6.5' \A1;34.6' \A1;23.7'\A1;23.7' \A1;22.2'\A1;8'\A1;8'\A1;5'\A1;5'\A1;5'\A1;1.5' \A1;1.5'\A1;8'SEE SEPARATE SITE PLAN PERMIT NO. 22-101773-CO FOR PAD H SITE IMPROVEMENTS SEE SEPARATE SITE PLAN PERMIT NO. 22-101773-CO FOR PAD H SITE IMPROVEMENTS S IR DD IR PB S PB PB IR PB PB PB IR P PB D PB S IR DD IR PB S PB PB IR PB PB PB IR P PB EV EVEV H=2.3'H=1.3'PIVS PB IR PB S PB IR D D IR IRIR ~ D D PB COCO S PB IR PB S PB IR D D IR IRIR N ETRAB .G A RU A 40111ANO R WFOE A SH NGTO N T E R ED SG ENG NEE EFOR P TS SS TA ER N A E G H NO.DESCRIPTION/DATE BY REVISIONS DWG. NAME: DESIGNED BY: DRAWN BY: CHECKED BY: DATE: OF SHEETS JOB NO.: PRINT: DATE OF \\\\Esm8\\engr\\ESM-JOBS\\2013\\001\\018\\plots\\Pad H Dicks\\GR-01.dwg5/19/2022 6:14 AMPlotted:File:Plotted By: Jeff HiivaEVERETTFEDERAL WAYΒ Ν Μ Ρ Τ Κ Σ Η Μ Φ ∆ Μ Φ Η Μ ∆ ∆ Θ ΡΚ Κ ΒCivil EngineeringProject ManagementLand SurveyingLandscape ArchitectureLand Planningwww.esmcivil.com(253) 838-6113(425) 297-9900Public WorksΕδχδθκ ςξ+ ς≅ 87//2223// 7σγ ≅υδ Ρ+ Ρτησδ 1/4≅ ΟΝΘΣΗΝΜ ΝΕ Μς 0.3 ΝΕ Ρ∆ΒΣΗΝΜ 04 ≅ΜΧ ΣΓ∆ Μ∆ 0.3 ΝΕ Ρ∆ΒΣΗΝΜ 05+ Σ− 10 Μ−+ Θ− 3 ∆−+ ς−Λ− ϑΗΜΦ ΒΝΤΜΣΞ+ ς≅ΡΓΗΜΦΣΝΜ ΧΗΒϑ&Ρ ΧΘΗΥ∆,ΗΜ Θ∆ΡΣ≅ΤΘ≅ΜΣΡΧΗΒϑ&Ρ ΧΘΗΥ∆,ΗΜ Ε∆Χ∆Θ≅Κ ς≅ΞT.E.S.C. & GRADING PLANWASHINGTONCITY OF FEDERAL WAY2013-001-018 GR-01 LGB GFF 05/30/2022 ΦΘ,/0 4 00 {PAD H} CUT:0 CY FILL:1,280 CY NET:1,280 CY (FILL) TRENCHES CUT: 860 CY (TRENCH OUTLINE SHOWN ON THIS SHEET MULTIPLIED BY 3' DEPTH FOR WATER AND DRY UTILITIES AND 5' DEPTH FOR SEWER) Ο≅Χ Γ PAD H {(4,286 SF)}∆ΩΗΡΣΗΜΦ ∆ΜΣΘΞ ΧΘΗΥ∆Ο≅ΒΗΕΗΒ ΓςΞ Ρ PACIFIC HWY S {(PUBLIC RIGHT OF WAY)} ΒΝΜΣΝΤΘ ΗΜΣ∆ΘΥ≅Κ < 0& ΡΒ≅Κ∆9 0! < 0 10 1/& 4020 µ CLEARING LIMITS FILTER FABRIC FENCE INTERCEPTOR DITCH INLET PROTECTION DAYLIGHT LINE EXISTING LANDSCAPE CURB, GUTTER AND SIDEWALK TO REMAIN. PROTECT FROM DAMAGE OR DISTURBANCE. ALONG PROPERTY FRONTAGE, CONTRACTOR SHALL REPLACE SIDEWALK PANELS THAT DO NOT COMPLY WITH ADA STANDARDS. ITEM TO REMAIN. PROTECT FROM DAMAGE OR DISTURBANCE. \pxt3;EX.TREE TO BE PRESERVED/PROTECTED PAD I SEE SEPARATE CONSTRUCTION PLAN ∆ΩΗΡΣΗΜΦ ∆ΜΣΘΞ ΧΘΗΥ∆ϑ∆Ξ ΜΝΣ∆Ρ ∆≅ΘΣΓςΝΘϑ ΠΤ≅ΜΣΗΣΗ∆Ρ Κ∆Φ∆ΜΧ APPROVED DATE PERMIT NO. PAD H DICK'S NOTE: THIS APPROVAL IS VOID 1 (ONE) YEAR AFTER APPROVAL DATE. THE CITY WILL NOT BE RESPONSIBLE FOR ERRORS AND/OR OMISSIONS ON THESE PLANS. FIELD CONDITIONS MAY DICTATE CHANGES TO THESE PLANS AS DETERMINED BY THE CITY ENGINEER. 1.PRE-CONSTRUCTION MEETING. 2.POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN). 3.FLAG OR FENCE CLEARING LIMITS. IDENTIFY AND PROTECT TREES TO BE RETAINED. 4.INSTALL PERIMETER PROTECTION, SUCH AS FILTER FABRIC FENCE, WHERE INDICATED. 5.GRADE AND INSTALL ROCK-LINED CONSTRUCTION ENTRANCE(S). 6.INSTALL SEDIMENT BARRIERS OVER EXISTING CATCH BASINS. 7.CLEAR TO LIMITS SHOWN ON PLANS AND INSTALL INTERCEPTOR DITCHES. 8.CONSTRUCT SEDIMENT PONDS. 9.ROUGH GRADE PARKING AREA AND BUILDING PAD. 10.INSTALL SANITARY SEWER SYSTEM. 11.INSTALL STORM DRAINAGE SYSTEM AND STORMWATER CARTRIDGE FILTERS. 12.INSTALL DOMESTIC WATER SYSTEM. 13.INSTALL SEDIMENT BARRIERS OVER CATCH BASINS. 14.FINE GRADE FOR CURB AND GUTTER, SIDEWALK, PAVEMENT, AND LANDSCAPING. 15.INSTALL CURB, GUTTER, AND SIDEWALK. 16.PAVE PARKING AREA. 17.REMOVE SEDIMENT BARRIERS. 18.COMPLETE LANDSCAPING. 19.MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH CITY OF FEDERAL WAY STANDARDS AND MANUFACTURER'S RECOMMENDATIONS. 20.RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH CITY OF FEDERAL WAY STANDARDS. 21.COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR TWO DAYS DURING THE WET SEASON WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR EQUIVALENT. 22.STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS. 23.SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. 24.UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE STABILIZED, HYDROSEEDED AND BMPS REMOVED IF APPROPRIATE. ΒΝΜΡΣΘΤΒΣΗΝΜ Ρ∆ΠΤ∆ΜΒ∆ SEE SEPARATE SITE PLAN PERMIT NO. 22-101773-CO FOR PAD H SITE IMPROVEMENTS