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Home My WebLink AboutSR_ERC_Report_K-12 Public Charter School_190918_v2_FINALDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Project Location Map SR_K-12 Public Charter School_190918_v2_FINAL ENVIRONMENTAL REVIEW COMMITTEE REPORT ERC Meeting Date: September 23, 2019 Project File Number: PR19-000287 Project Name: K-12 Public Charter School Land Use File Number: LUA19-000035, ECF, CU-H, SH Project Manager: Alex Morganroth, Associate Planner Owner: MBA Cascade Plaza LLC, 7420 SW 24th St, Ste 4, Mercer Island, WA 98040 Contact/Contact: Anna Johnson, Washington Charter School Development, 107 Spring St, Suite 4025, Seattle, WA 98104 Project Location: 17060 116th Ave SE Project Summary: The applicant, Washington Charter School Development (WCSD), is requesting a Hearing Examiner Conditional Use Permit, Site Plan Review, and Environmental (SEPA) Review to convert a vacant grocery store (former QFC) within the Cascade Village Shopping Center to a K – 12th grade public charter school. The 40,664 square foot building is located at 17060 116th Ave SE. The parcel is approximately 13.6 acres (APN 2823059009). The site is zoned Commercial Arterial (CA) and is located in the Urban District D Overlay. The applicant proposes to provide 60 parking spaces in the existing parking lot and convert several existing parking spaces (and some landscape areas) to bus loading and outdoor sport courts. The school would serve approximately 525 students. The school day would start at 8:00 am (Monday – Friday) and end at 3:30 pm. Afterschool clubs and tutoring may start as early as 7:00 am and end as late as 5:00pm (Monday – Thursday). The school seeks to occupy the existing structure by fall of 2020. Renovations would include interior tenant improvements, seismic upgrades, new mechanical and electrical systems, envelope improvements, landscaping and overall site improvements. The size of the building would not increase as a result of the project. Approximately 2,300 sq. ft. of new or replaced impervious surface is proposed. No critical areas are present on the project site. The applicant submitted a Drainage Report, Geotechnical Report, Traffic Study, and SEPA Checklist. Exist. Bldg. Area SF: 40,664 Proposed New Bldg. Area (footprint): Proposed New Bldg. Area (gross): N/A N/A Site Area: 13.6 ac Total Building Area GSF: 40,664 STAFF RECOMMENDATION: Staff Recommends that the Environmental Review Committee issue a Determination of Non-Significance - Mitigated. Building Location City of Renton Department of Community & Economic Development K-12 Public Charter School Staff Report to the Environmental Review Committee LUA19-000035, ECF, CU-H, SH Report of September 18, 2019 Page 2 of 4 SR_K-12 Public Charter School_190918_v2_FINAL ENVIRONMENTAL REVIEW In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. A. Environmental Threshold Recommendation Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials: Issue a DNS-M with a 14-day Appeal Period. B. Mitigation Measures 1. The applicant shall conduct a security survey of the site with a Renton Police Crime Prevention Representative prior to the issuance of the Certificate of Occupancy. 2. The applicant shall submit a traffic management plan with the Civil Construction Permit application for review and approval by the Public Works Plan Reviewer. C. Exhibits Exhibit 1: Environmental Review Committee (ERC) Report Exhibit 2: Neighborhood Detail Map Exhibit 3: Site Plan Exhibit 4: Floor Plans Exhibit 5: Landscape Plan Exhibit 6: Traffic Study (dated July 15, 2019 and prepared by Heffron Transportation Inc) Exhibit 7: Drainage Report (dated February 15, 2018 and prepared by Sitewise Design PLLC) Exhibit 8: Geotechnical Report (dated February 12, 2019 and prepared by GeoResources) Exhibit 9: Architectural Elevations Environmental Impacts The Proposal was circulated and reviewed by various City Departments and Divisions to determine whether the applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development. Staff reviewers have identified that the proposal is likely to have the following probable impacts: 1. Water a. Storm Water Impacts: A 12-inch stormwater main is located in 116th Ave SE. No private stormwater conveyance system is located on the project site. The existing roof drainage is collected via roof downspouts and sheet flows through the parking lot into the public conveyance system in the street. The applicant has indicated that the project would result in approximately 2,198 square feet of new or replaced impervious surface. Therefore, a full drainage review pursuant to the 2017 Renton Surface Water Design Manual is required to be submitted at the time of Construction Permit application submittal. A Surface Water System Development (SDC) fee would be assessed at a rate of $0.641 per square foot of new impervious surface, to be no less than $1,508.00, at the time of construction permit issuance. Staff anticipates that existing stormwater requirements and impact fees would adequately City of Renton Department of Community & Economic Development K-12 Public Charter School Staff Report to the Environmental Review Committee LUA19-000035, ECF, CU-H, SH Report of September 18, 2019 Page 3 of 4 SR_K-12 Public Charter School_190918_v2_FINAL mitigate any impacts created by the increase or replacement of impervious surface, therefore no further mitigation is recommended. Mitigation Measures: None Nexus: N/A 2. Fire & Police Impacts: The City of Renton Police Department provided a comprehensive set of comments and suggestions related to safety and security for the new school, applicable during both the construction and school operation phases (see Exhibit 10). Recommendations are primarily related to physical improvements such as the provision of adequate exterior lighting, installation of reinforced doors and windows, monitoring security alarms, and installation of territorial landscaping designed to create a clear boundary between public and private space. In addition, specifications for staff and pedestrian access control and lockdown procedures are also included in the recommendations. In addition to creating a safe environment in the school for teachers and students, adhering to the recommendations helps ensure the safety of City of Renton police officers should they need to respond to the school for any reason. Therefore, staff recommends as a mitigation measure that the applicant conduct a security survey of the site with a Renton Police Crime Prevention Representative of the premises prior to the issuance of the Certificate of Occupancy. Mitigation Measures: The applicant shall conduct a security survey of the site with a Renton Police Crime Prevention Representative of the premises once construction is complete. Nexus: SEPA Environmental Review 3. Transportation Impacts: The applicant submitted a Transportation Technical Report prepared by Heffron Transportation Inc. (Exhibit 6). The report included analysis related to site access and circulation, trip generation, parking needs and impact fees for the proposed new school. The consultant utilized recent traffic counts to evaluate the potential impact of the proposed project on the Level of Service (LOS) of multiple intersections near the project site. The report concluded that while the proposal would generate additional vehicle trips and delays at all studied intersections, the increase would be small relative to existing traffic volumes and would not result in any LOS decreases in the surrounding area. The consultant estimates that the school would generate approximately 1,300 new daily trips, the majority of which would occur outside of the commuter AM and PM peak hours. In comparison to the previous use on the site, a large supermarket, the proposal would generate a significantly lower number of trips (1,200 vs. 5,183 trips). The project site currently has five points of ingress/egress including three driveways off of 116th Ave SE, one driveway off of SE 168th St, and one driveway off of SE 170th St. The report recommends that the applicant create a traffic management plan that requires vehicular traffic at the proposed school to utilize the northern and southern most access points off of 116th Ave SE. This would be achieved by blocking certain entrances via a gate, utilizing pavement striping that directs the school traffic to a specific driveway, and providing education to bus drivers, parents, and students on the preferred way to enter and exit the site. The report concludes that utilization of the two preferred entrances of 116th Ave SE would be safest due to fewer opportunities for vehicular and pedestrian movement conflicts. Therefore, staff recommends as a mitigation measure that the applicant submit a traffic management plan with the Civil Construction Permit application for review and approval by the Public Works Plan Reviewer. Staff has reviewed the report and concurs with the analysis and recommendations made regarding access, circulation, and trip generation. Payment of the required impact fees would adequately mitigate the expected traffic impacts of the project and therefore no further mitigation is recommended. City of Renton Department of Community & Economic Development K-12 Public Charter School Staff Report to the Environmental Review Committee LUA19-000035, ECF, CU-H, SH Report of September 18, 2019 Page 4 of 4 SR_K-12 Public Charter School_190918_v2_FINAL Mitigation Measures: None Nexus: N/A D. Comments of Reviewing Departments The proposal has been circulated to City Department and Division Reviewers. Where applicable, their comments have been incorporated into the text of this report and/or “Advisory Notes to Applicant.”  Copies of all Review Comments are contained in the Official File and may be attached to this report. The Environmental Determination decision will become final if the decision is not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in writing together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057, on or before 5:00 p.m. on October 11, 2019. RMC 4-8-110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the City Clerk’s Office, Renton City Hall – 7th Floor, (425) 430-6510. CITY OF RENTON DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT STAFF REPORT TO THE ENVIRONMENTAL REVIEW COMMITTEE EXHIBITS Project Name: K-12 Public Charter School Land Use File Number: LUA19-000035, ECF, CU-H, SH Date of Meeting September 23, 2019 Staff Contact Alex Morganroth Associate Planner Project Contact/Applicant Anna Johnson Washington Charter School Development 107 Spring St, Suite 4025, Seattle, WA 98104 Project Location 17060 116th Ave SE The following exhibits are included with the ERC Report: Exhibit 1: Environmental Review Committee (ERC) Report Exhibit 2: Neighborhood Detail Map Exhibit 3: Site Plan Exhibit 4: Floor Plans Exhibit 5: Landscape Plan Exhibit 6: Traffic Study (dated July 15, 2019 and prepared by Heffron Transportation Inc) Exhibit 7: Drainage Report (dated February 15, 2018 and prepared by Sitewise Design PLLC) Exhibit 8: Geotechnical Report (dated February 12, 2019 and prepared by GeoResources) Exhibit 9: Architectural Elevations Exhibit 10: Advisory Notes STATE OF WASHINGTON ARCHITECT REGISTERED5087 BRADLEY S. MILLER Miller HayashiArchitects 118 North 35th St. Suite 200 Seattle, Washington 98103 Tel: 206 634 0177 Fax: 206 634 0167 PRELIMINARY COORD SETNOT FOR CONSTRUCTIONARCHITECT'S STAMP CONSULTANT'S STAMP CONSULTANT DATE PHASE REVISIONS 7/12/2019 K-12 Public Charter School 16950 116th Ave SE Renton, WA 98058 CUP Description Date K-12 Public Charter School 7/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G 168 SF SPRINKLER/ UTILITY 758 SF CLASSROOM MS 793 SF CLASSROOM MS 793 SF CLASSROOM MS 793 SF CLASSROOM MS 874 SF CLASSROOM HS 767 SF CLASSROOM HS 772 SF CLASSROOM HS 772 SF CLASSROOM HS 772 SF CLASSROOM HS 772 SF CLASSROOM HS 498 SF MECHANICAL 109 403 SF FLEX CR 777 SF CLASSROOM HS 764 SF CLASSROOM HS 2346 SF COMMONS A 454 SF SERVERY 3317 SF MULTIPURPOSE (300 SEATS) 455 SF TEACHER SUPPORT 750 SF CLASSROOM MS 753 SF CLASSROOM MS 833 SF ADMIN 463 SF FLEX CR 814 SF MS LAB 814 SF JOINT LAB 949 SF JOINT MUSIC 782 SF CLASSROOM MS 776 SF CLASSROOM HS 771 SF CLASSROOM HS 771 SF CLASSROOM HS 769 SF CLASSROOM HS H 57 SF TOILET 28 SF IDF 130 SF OFFICE 124 SF OFFICE 124 SF OFFICE 225 SF CONF ROOM 376 SF STORAGE 120 SF OFFICE (E) 20' - 11 5/8" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 0" +/-(E) 20' - 11 5/8" +/-28' - 0 3/4" 49 SF JANITOR 57 SF TOILET 1 A4.10 2 A4.10 1020 SF HS LAB 76 SF STOR 436 SF W/C PROJECTOR SCREEN TEACHING WALL TEACHING WALL 134 SF ED FLEX REF EXISTING CMU WALL, TYPEXISTING FRAMED WALL, TYP CMU WALL, TYP1 A4.11 71 SF WELLNESS 2 A4.11 117 SF CHANGING 138 SF STORAGE112 SF CHANGING 123 SF ED FLEX 127 SF ED FLEX 145 SF ED FLEX 157 SF ED FLEX 436 SF W/C 772 SF CLASSROOM MS 473 SF W/C 1 A3.20 1 A3.20 3 A3.20 3 A3.20 91 SF STORAGECL STEELF.O. FDNCL STEELCL STEELCL STEELCL STEELCL STEELCL STEELCL STEELCL STEELCL STEELF.O. FDNF.O. FDNF.O. FDN (E) 32' - 5 1/8" +/-(E) 18' - 1" +/-(E) 17' - 8" +/-(E) 31' - 9" +/-(E) 42' - 1 1/2" +/-(E) 28' - 11 3/8" +/-40' - 0"CL STL CL STL CL STL CL STL CL STL F.O. FDN F.O. FDN 4 A3.20 4 A3.20 2 A3.20 2 A3.20 2 A3.10A 4A3.10A3 P-173 P-166 A3.10A TEACHING WALL, TYP OVERHEAD DOOR 188 SF ELECTRICAL Floor Plan Legend FRAMED WALL/ PARTITION, TYPICAL TYPE 1A IF NO TAG IS PRESENT EXISTING FRAMED WALL/PARTITION DOOR, TYPICAL SEE SCHEDULE RELITE TYPE SEE SCHEDULE1012 RE2 EXISTING CMU WALL/PARTITION STATE OF WASHINGTON ARCHITECT REGISTERED5087 BRADLEY S. MILLER Miller HayashiArchitects 118 North 35th St. Suite 200 Seattle, Washington 98103 Tel: 206 634 0177 Fax: 206 634 0167 PRELIMINARY COORD SETNOT FOR CONSTRUCTIONARCHITECT'S STAMP CONSULTANT'S STAMP CONSULTANT C MILLER HAYASHI ARCHITECTS DATE PHASE SHEET TITLE SHEET NO. REVISIONS A2.00 First Floor Plan 2/15/2019 Excel Public Charter School 16950 116th Ave SE Renton, WA 98058 CUP 1808 1/8" = 1'-0"1 Floor Plan - Level 1 N Description Date K-12 Public Charter School 7/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G H EXISTING RIDGE SKYLIGHT MONITOR, TYP EXISTING STRUCTURE SLOPES 1/8" : 12"; PROVIDE INSULATION TO ACHIEVE 1/4" : 12" SLOPE, TYPEXISTING STRUCTURE SLOPES 1/8" : 12"; PROVIDE INSULATION TO ACHIEVE 1/4" : 12" SLOPE, TYPROOF DIVIDER EXISTING STRUCTURE SLOPES 1/8" : 12"; PROVIDE INSULATION TO ACHIEVE 1/4" : 12" SLOPE, TYPMECHANICAL UNIT DS DS DS DS DS DS ROOF MONITOR ROOF MONITOR MECHANICAL UNIT MECHANICAL UNIT STATE OF WASHINGTON ARCHITECT REGISTERED5087 BRADLEY S. MILLER Miller HayashiArchitects 118 North 35th St. Suite 200 Seattle, Washington 98103 Tel: 206 634 0177 Fax: 206 634 0167 PRELIMINARY COORD SETNOT FOR CONSTRUCTIONARCHITECT'S STAMP CONSULTANT'S STAMP CONSULTANT C MILLER HAYASHI ARCHITECTS DATE PHASE SHEET TITLE SHEET NO. REVISIONS A2.01 Roof Plan 2/15/2019 Excel Public Charter School 16950 116th Ave SE Renton, WA 98058 CUP 1808 1/8" = 1'-0"1 Roof PlanN Description Date STATE OF WASHINGTON ARCHITECT REGISTERED5087 BRADLEY S. MILLER Miller HayashiArchitects 118 North 35th St. Suite 200 Seattle, Washington 98103 Tel: 206 634 0177 Fax: 206 634 0167 PRELIMINARY COORD SETNOT FOR CONSTRUCTIONARCHITECT'S STAMP CONSULTANT'S STAMP CONSULTANT DATE PHASE REVISIONS 2/15/2019 Excel Public Charter School 16950 116th Ave SE Renton, WA 98058 CUP Description Date K-12 Public Charter School 7/12/2019 MATERIALS AND FINISHES SYMBOL DESCRIPTION PEDESTRIAN C.I.P. CONC. PAVING BROOM FINISH, SAND-COATED EXP. JOINTS, SAWCUT JOINTS, SCORING AS INDICATED ON PLAN PAINTED LINES ON EXISTING ASPHALT PAVING BIKE RACK, INVERTED U, HOT-DIPPED GALVANIZED STEEL, POWDER COATED. MODEL BR-3 AVAILABLE FROM FAIRWEATHER SITE FURNISHINGS. GALVANIZED STEEL FINISH. COLOR: SEMI-GLOSS BLACK. STONE SLAB: 24" W, 18" HT, 5' LONG, BLACK OR DARK GREY, GRANITE, SAWN TOP ROUGH CUT SIDES, SEE SPECS 4' HT. CHAINLINK FENCE, REF: ARCH. NOTES 1.ALL PLANTING AREAS TO RECEIVE 2" OF MULCH. 2.AT GRADE LANDSCAPING AREAS SHALL CONTAIN AT LEAST TWELVE INCHES OF TOPSOIL AT FINISH GRADE. PLANTING SOIL TO BE AMENDED PER COS 2011 STANDARD PLAN #142 3.ALL LANDSCAPE AREAS TO BE WATERED WITH A PERMANENT AUTOMATIC IRRIGATION SYSTEM. PLANTING SYMBOL BOTANICAL NAME/ COMMON NAME SIZE/COND./SPACING CARPINUS JAPONICA/ JAPANESE HORNBEAM 2" CAL./ B&B/PER PLAN BETULA POPULIFOLIA 'WHITESPIRE SENIOR'/ WHITESPIRE SENIOR GRAY BIRCH 2" CAL./ B&B/PER PLAN PARROTIA PERSICA 'VANESSA'/ PERSIAN IRONWOOD 2" CAL./ B&B/PER PLANDDPOWER LINETOWER BASETOWER BASE L2.00 1 FENCE/GATE, REF: ARCH. 15' PARTIALLY SIGHT-OBSCURING LANDSCAPED VISUAL BARRIER INTERIOR PARKING LANDSCAPING, TYP. 2' TYP. 5' TYP. 2' TYP.PARENT DROP-OFFBUS LOADINGOUTDOOR PLAY COURTS PARKING SWALE, TYP, POLE MOUNTED LIGHT FIXTURE, REF: ARCH POLE MOUNTED LIGHT FIXTURE, REF: ARCH EX. POWER LINE BASE 4' HT. CHAIN LINK FENCE 4' HT. CHAIN LINK FENCE SOD LAWN 5' MULCH RING @ TREE BASE, TYP.149'149'149'4'-8"151'-2"398'-9" 83'-9"136'EX. VEGETATION TO REMAIN EX. VEGETATION TO REMAIN 4' HT. CHAIN LINK FENCE 398'-9"217'151'STAT EO F W ASHINGTONNO .8 . K A R E N S KIES T 50 E X PLICENSE D LANDS CA P E A RC H ITECT. 1 2 1020/19/111 west john street suite 306 seattle washington 98119 206 323 6032 www.kk-la.com Karen Kiest Landscape Architects STAT EO F W ASHINGTONNO .8 . K A R E N S KIES T 50 E X PLICENSE D LANDS CA P E A RC H ITECT. 1 2 1020/19/111 west john street suite 306 seattle washington 98119 206 323 6032 www.kk-la.com Karen Kiest Landscape Architects Miller Hayashi Architects 118 North 35th St.Suite 200 Seattle, Washington 98103 Tel: 206 634 0177 Fax: 206 634 0167 ARCHITECT'S STAMP CONSULTANT'S STAMP CONSULTANT WCSD Cascade Village School 17060 116th Ave SE Renton, WA 98058 PARROTIA PERSICA 'VANESSA'/ PERSIAN IRONWOOD 2" CAL./ B&B/PER PLAN ACER CIRCINATUM / VINE MAPLE 2" CAL./ B&B/PER PLAN QUERCUS GARRYANA / GARY OAK 2" CAL./ B&B/PER PLAN CORYLUS COLURNA/ TURKISH FILBERT 2" CAL./ B&B/PER PLAN ZELKOVA SERRATA/ JAPANESE ZELKOVA 2" CAL./ B&B/PER PLAN SHRUBS & GROUNDCOVER SYMBOL BOTANICAL NAME/ COMMON NAME SIZE/SPACING/ MATURE HEIGHT ANDROMEDA POLIFOLIA 'NANA' / NANA BOG ROSEMARY 1 GAL./ 30" O.C./2' CORNUS STOLONIFERA 'KELSEYII'/ KELSEY'S DOGWOOD 1 GAL./24" O.C./2.5' JUNCUS EFFUSUS/ COMMON RUSH (50%)1 GAL./ /24" O.C./ 2' CAREX OBNUPTA/ SLOUGH SEDGE (50%)1 GAL./ /24" O.C./ 2' ROSA X 'NOASCHNEE' / FLOWER CARPET WHITE GROUNDCOVER ROSE 1 GAL./ 24" O.C./ 2' ILEX CRENATA 'CONVEXA' / JAPANESE HOLLY 1 GAL./ 24" O.C./ 4' VIBURNUM DAVIDII / DAVID'S VIBURNUM 2 GAL./ 36" O.C./ 3' SPIRAEA X BUMALDA 'DENISTAR' / SUPERSTAR SPIREA 1 GAL./ 24" O.C./ 2' LONICERA PILEATA / BOXLEAF HONEYSUCKLE 1 GAL./ 30" O.C./ 2' LIRIOPE SPICATA/ CREEPING LIRIOPE 1 GAL./ 24" O.C./ 2' MAHONIA AQUIFOLIUM / TALL OREGON GRAPE (25%)1 GAL./ 48" O.C./ 6' VACCINIUM OVATUM/ EVERGREEN HUCKLBERRY (25%)1 GAL./ 48" O.C. / 6' VACCINIUM CORYMBOSUM/ HIGHBUSH BLUEBERRY (25%)5 GAL./ 48" O.C./6' MORELLA CALIFORNICA/ CALIFORNIA WAX MYRTLE (25%)5 GAL./ 48" O.C./10' FRAGARIA CHILOENSIS/ COASTAL STRAWBERRY 1 GAL./ 24" O.C. FRAGARIA CHILOENSIS/ COASTAL STRAWBERRY 1 GAL./ 24" O.C. ALL SHRUBS AND GROUNDCOVER SHALL BE CONTAINER HYDHYDWV WV WV WVWV CTOWER BASEL2.00 3 L2.00 2 BLDG CANOPY, TYP. REF: ARCH PARENT DROP-OFFPARENT DROP-OFF STONE SLAB, TYP ENTRY PLANTING AREA, TYP.. POLE MOUNTED LIGHT FIXTURE, REF: ARCH POLE MOUNTED LIGHT FIXTURE, REF: ARCH EX. POWER LINE BASEPROPERTY LINE LEASE AGREEMENT SITE BOUNDARY GATE, REF: ARCH. EX. FENCE STONE SLAB, TYP. MOUNDED PLANTING AREA, TYP.1'-9"39'-10"1'-11"42'-2"1'-9"39'-10"37'-3"5' TYP.8' TYP. 13'-11"20'20'18'-6"18'-10"20'39'-5"27'-1"23'-10"19'-1"25'-9"17'18'-10"26'-4" CONC. PED PAVING EX. VEGETATION TO REMAIN EX. BUILDING PROPOSED PROJECT BUILDING216'-6"293'-5"4 1 ' - 8 " 30'-6"PRELIMINARY COORD SETNOT FOR CONSTRUCTIONMIN. 5' PLANTING STRIP IS REQUIRED AROUND THE PERIMETER OF ALL PARKING FRAGARIA CHILOENSIS/ COASTAL STRAWBERRY 1 GAL./ 24" O.C. SOD LAWN CITY OF RENTON 4-4-070 LANDSCAPING F.4. PROJECTS ABUTTING LESS INTENSIVE ZONES OR USES c.COMMERCIAL ZONE ABUTTING RESIDENTIAL ZONE: 15' WIDE PARTIALLY SIGHT-OBSCURING LANDSCAPE VISUAL BARRIER ALONG COMMON PROPERTY LINE F.6 PARKING LOTS b.INTERIOR PARKING LOT LANDSCAPING: 25 SF/PARKING STALL 60 STALLS X 25 SF = 1,500 SF REQUIRED 4230 SF PROVIDED, SEE PLAN FOR DIMENSIONS. H.2 PARTIALLY SIGHT-OBSCURING LANDSCAPED VISUAL BUFFER MINIMUM 6' HIGH AT MATURITY AT LEAST 50% SIGHT OBSCURING H.5 INTERIOR PARKING LOT LANDSCAPING a.TREES SHALL BE 2" DBH. AT LEAST ONE TREE FOR EVERY (6) PARKING STALLS 60 STALLS/6 = (10) TREES REQUIRED (12) TREES PROVIDED B.AT MINIMUM (1) SHRUB/20 SF LF LANDSCAPED AREA (50% MAY BE DECIDUOUS) 4230 SF/20 = (212) SHRUBS REQUIRED (350) SHRUBS PROVIDED REF: ARCHTECTURAL SITE PLAN FOR PARKING STALL COUNTS AND DIMENSIONSWVWVHYDWVCCGV G.M. BIKE RACKS (TYP. OF 4) LEASE AGREEMENT SITE BOUNDARY EX. BUILDING BUILDING 40'49'-8"23'-5"65'-8"132'-2"2 0 ' - 2 " C MILLER HAYASHI ARCHITECTS DATE PHASE SHEET TITLE SHEET NO. REVISIONS 2/15/19 CUP 1808 Description Date L1.00A Landscape Plan COLOR 0 scale 1" = 20' - 0" 20 40Landscape Plan1 Excel Public Charter School 16950 116th Ave SE Renton, WA 98058 K-12 Public Charter School 7/12/2019 CONDITIONAL USE PERMIT TECHNICAL INFORMATION REPORT Project:WCSD Cascade Village 17060 116th Ave SE Renton, WA 98057 Prepared For:Miller Hayashi Architects 118 N. 35th St. Suite 200 Seattle, WA 98103 Prepared By:Ryan Yokum, EIT Reviewed By:Marc Errichetti, PE Date:February 15, 2018 TRANSPORTATION TECHNICAL REPORT for Renton K-12 Charter School PREPARED FOR: Washington Charter School Development PREPARED BY: 6544 NE 61st Street, Seattle, WA 98115 ph: (206) 523-3939  fx: (206) 523-4949 July 15, 2019 February 12, 2019 WCSD 16950 116th Ave SE LLC 107 Spring Street, Suite 4025 Seattle, WA 98104 Attn: Ms. Anna Johnson (503) 970-7487 Geotechnical Engineering Report Proposed Building Improvements 17060 – 116th Avenue Southeast Renton, Washington PN: 2823059009 Doc ID: WCSD.CascadeVillage.RG INTRODUCTION This geotechnical engineering report summarizes our site observations, subsurface explorations, and engineering analyses and provides geotechnical recommendations and design criteria for the proposed improvements for the existing building located at 17060 – 116th Avenue Southeast in Renton, Washington. The site location is shown on the Site Location Map, included as Figure 1. Our understanding of the project is based on our conversations with Ms. Anna Johnson with Washington Charter School Development, our review of the conceptual Site Plan by Miller Hayashi Architects, LLC dated April 30, 2018, our review of the Survey Plan by Puget Sound Surveying, Inc. dated October 31, 2017, our December 14, 2018 site visit and subsurface explorations, and our experience in the City of Renton area. We understand that the development will consist of a structural retrofit of the existing building and improvements to the parking area. You are proposing to convert the old grocery store into a new school building that will include a new awning area in the front and a playground area in the existing parking area. You are currently planning to keep the existing building and its foundations. Portions of the current parking area that is impervious will be converted to landscape areas. We anticipate that any new additions or structures will be a one or two-story, steel framed structure likely founded on conventional shallow foundations, similar to the existing building. The site is currently developed with a storm system and all other typical utilities and you are not proposing to increase the impervious area at the site and are actually decreasing it. C H A R T E R S C H O O LK-1 2 P U B L I C C H A R T E R S C H O O LK-1 2 P U B L I C K-12 Public Charter School 7/12/2019