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HomeMy WebLinkAboutC_ERC_Determination_Agency_Letter_ForestTerrace_180921.pdf cc: King County Wastewater Treatment Division Ramin Pazooki, WSDOT, NW Region Boyd Powers, Department of Natural Resources Larry Fisher, WDFW Karen Walter, Fisheries, Muckleshoot Indian Tribe Duwamish Tribal Office Melissa Calvert, Muckleshoot Cultural Resources Program US Army Corp. of Engineers Gretchen Kaehler, Office of Archaeology & Historic Preservation Washington State Department of Ecology September 21, 2018 Washington State Department of Ecology Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 Subject: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION Transmitted herewith is a copy of the Environmental Determination for the following project reviewed by the Environmental Review Committee (ERC) on September 17, 2018: SEPA DETERMINATION: Determination of Non-Significance - Mitigated (DNS-M) PROJECT NAME: Forest Terrace Preliminary Plat, PR18-000081 PROJECT NUMBER: LUA18-000124, ERC, PP, MOD Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on October 5, 2018, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and information regarding the appeal process may be obtained from the City Clerk’s Office, (425) 430-6510. Please refer to the enclosed Notice of Environmental Determination for complete details. If you have questions, please call me at (425) 430-6593. For the Environmental Review Committee, Matt Herrera Senior Planner Enclosure: ERC Determination, Mitigation Measures/Advisory Notes, Notice of Environmental Determination, and Environmental Checklist (select recipients) DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT ENVIRONMENTAL (SEPA) DETERMINATION OF NON-SIGNIFICANCE - MITIGATED (DNS-M) PROJECT NUMBER: LUA18-000124, ERC, PP, MOD APPLICANT: Ivana Halvorsen, Barghausen Consulting Engineers, Inc. / ihalvorsen@barghausen.com / 18215 72nd Ave S, Kent, WA 98032 PROJECT NAME: Forest Terrace Preliminary Plat PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval, Environmental Review (SEPA), Critical Areas Variance, and two (2) modifications to subdivide a 596,570 square foot (13.70 acre) site located at 2611 Union Ave NE (subject property) into 25 single-family residential lots, four (4) open space tracts, and one (1) drainage tract. The subject property is located in the Residential-4 (R-4) zoning classification and Residential Low Density Comprehensive Plan land use designation. Proposed lot sizes would range from 9,038 to 19,584 square feet with an overall density of approximately 2.14 dwellings per net acre. One (1) existing single-family residence on the subject property would be removed. Access to the site would be via a new public residential access street extending from Union Ave NE through the subject property with stubs for future connectivity along the north and western property limits. The applicant would also construct frontage improvements on Union Ave NE along the subject property and the frontage of 2623 Union Ave NE. Stormwater would be conveyed via a system of catch basins and storm pipes throughout the development with flow control provided via two (2) detention tanks and one (1) detention vault located on the northwest portion of the property. A proposed stormfilter would provide water quality treatment. New eight (8) inch sewer and eight (8) inch water mains would be constructed within the subdivision's new public street and connect to the existing sewer and water facilities located in Union Ave NE. The applicant has requested a critical areas variance to remove an existing protected slope on the eastern portion of the subject property to construct a section of the new internal public street with the remaining slope proposed to be replaced with a terraced retaining wall. The applicant has requested a modification to the residential retaining wall height limitation of six (6) feet with proposed rockeries up to 10-feet in height in the southwestern portion of the of the subject property. A second modification is requested for frontage improvements along Union Ave NE for a modified minor arterial standard. A Lot Line Adjustment (LUA18 -000125) is also under review for the subject property and the abutting 2623 Union Ave NE that would alter the abutting lot’s property lines to accommodate the proposed subdivision’s new public street alignment and frontage improvements on Union Ave NE. The City’s Critical Areas map identifies potential regulated slopes on the property between 25-40 percent with isolated areas greater than 40-percent. The applicant has proposed to retain 119 of the subject property’s 847 viable trees. The applicant has submitted an arborist report, geotechnical report, transportation impact analysis, and drainage report with the preliminary plat application. PROJECT LOCATION: 2611 and 2623 Union Ave NE / APNs 042305-9142 and 042305-9114 LEAD AGENCY: City of Renton Environmental Review Committee Department of Community & Economic Development DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA SIGNATURES: Gregg Zimmerman, Administrator Public Works Department Date Rick M. Marshall, Administrator Renton Regional Fire Authority Date Kelly Beymer, Administrator Community Services Department Date C.E. Vincent, Administrator Date Department Of Community & Economic Development The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-9-070D Renton Municipal Code. These conditions are necessary to mitigate environmental impacts identified during the environmental review process. Because other agencies of jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14) days. Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on October 5, 2018. Appeals must be filed in writing together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and more information may be obtained from the Renton City Clerk’s Office, (425) 430-6510. PUBLICATION DATE: September 21, 2018 DATE OF DECISION: September 17, 2018 DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA 9/21/2018 | 9:53 AM PDT 9/21/2018 | 8:52 AM PDT 9/21/2018 | 8:24 AM PDT DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT Planning Division 1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2 www.rentonwa.gov DETERMINATION OF NON-SIGNIFICANCE – MITIGATED (DNS-M) MITIGATION MEASURES AND ADVISORY NOTES PROJECT NUMBER: LUA18-000124, ERC, PP, MOD APPLICANT: Ivana Halvorsen, Barghausen Consulting Engineers, Inc. / ihalvorsen@barghausen.com / 18215 72nd Ave S, Kent, WA 98032 PROJECT NAME: Forest Terrace Preliminary Plat PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval, Environmental Review (SEPA), Critical Areas Variance, and two (2) modifications to subdivide a 596,570 square foot (13.70 acre) site located at 2611 Union Ave NE (subject property) into 25 single-family residential lots, four (4) open space tracts, and one (1) drainage tract. The subject property is located in the Residential-4 (R-4) zoning classification and Residential Low Density Comprehensive Plan land use designation. Proposed lot sizes would range from 9,038 to 19,584 square feet with an overall density of approximately 2.14 dwellings per net acre. One (1) existing single- family residence on the subject property would be removed. Access to the site would be via a new public residential access street extending from Union Ave NE through the subject property with stubs for future connectivity along the north and western property limits. The applicant would also construct frontage improvements on Union Ave NE along the subject property and the frontage of 2623 Union Ave NE. Stormwater would be conveyed via a system of catch basins and storm pipes throughout the development with flow control provided via two (2) detention tanks and one (1) detention vault located on the northwest portion of the property. A proposed stormfilter would provide water quality treatment. New eight (8) inch sewer and eight (8) inch water mains would be constructed within the subdivision's new public street and connect to the existing sewer and water facilities located in Union Ave NE. The applicant has requested a critical areas variance to remove an existing protected slope on the eastern portion of the subject property to construct a section of the new internal public street with the remaining slope proposed to be replaced with a terraced retaining wall. The applicant has requested a modification to the residential retaining wall height limitation of six (6) feet with proposed rockeries up to 10-feet in height in the southwestern portion of the of the subject property. A second modification is requested for frontage improvements along Union Ave NE for a modified minor arterial standard. A Lot Line Adjustment (LUA18-000125) is also under review for the subject property and the abutting 2623 Union Ave NE that would alter the abutting lot’s property lines to accommodate the proposed subdivision’s new public street alignment and frontage improvements on Union Ave NE. The City’s Critical Areas map identifies potential regulated slopes on the property between 25-40 percent with isolated areas greater than 40-percent. The applicant has proposed to retain 119 of the subject property’s 847 viable trees. The applicant has submitted an arborist report, geotechnical report, transportation impact analysis, and drainage report with the preliminary plat application. PROJECT LOCATION: 2611 and 2623 Union Ave NE / APNs 042305-9142 and 042305-9114 LEAD AGENCY: The City of Renton Department of Community & Economic Development Planning Division MITIGATION MEASURES: 1. Clearing and grading of the subject property shall be limited to May 1 to September 30. 2. The applicant shall comply with the recommendations of the Geotechnical Report, Protected Slope Analysis, and Response to GeoEngineers Secondary Review Comments prepared by Terra Associates Inc. dated July 19, 2017, June 18, 2018, and August 14, 2018, respectively, and any future addenda to such reports. 3. The applicant’s geotechnical engineer shall review the project’s construction plans to verify compliance with the geotechnical report(s). The geotechnical engineer shall submit a sealed letter stating that he/she has reviewed the construction plans and in their opinion the plans and specifications meet the intent of the report(s). 4. The applicant’s geotechnical engineer shall identify those construction activities where observation onsite by a licensed geotechnical engineer should occur. Those identified activities shall be clearly stated on the construction plans to be submitted for review and approval by the Civil Plan Reviewer. 5. The applicant’s geotechnical engineer shall seal and certify all rockeries and retaining walls regardless of height on the construction plans and provide long term maintenance recommendations for future homeowners. 6. The applicant shall restore the Union Ave NE roadbed (curb to curb) along the subject property’s frontage to current City Standards prior to final plat recording. 7. The applicant shall video the approved haul route prior to the beginning of construction to identify the existing condition of the roadway. Following the completion of plat infrastructure, the applicant shall video the haul route again and identify the post construction condition of the roadway. The applicant shall repair the roadway to a condition equal or better to the condition of the initial video. Repairs to the haul route shall be completed by the applicant and reviewed and approved by the civil plan reviewer prior final plat recording. ADIVISORY NOTES: The following notes are supplemental information provided in conjunction with the administrative land use action. Because these notes are provided as information only, they are not subject to the appeal process for the land use actions. DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT LUA18-000124 ADVISORY NOTES TO APPLICANT The following notes are supplemental information provided in conjunction with the land use action. Because these notes are provided as information only, they are not subject to the appeal process for the land use action. Planning: (Contact: Matt Herrera, 425-430-6593, mherrera@rentonwa.gov) 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to the hours between nine o’clock (9:00) a.m. and eight o’clock (8:00) p.m. No work shall be permitted on Sundays. 3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an appropriate ground cover over any portion of the site that is graded or cleared of vegetation and where no further construction work will occur within ninety (90) days. Alternative measures s uch as mulch, sodding, or plastic covering as specified in the current King County Surface Water Management Design Manual as adopted by the City of Renton may be proposed between the dates of November 1st and March 31st of each year. The Development Services Division’s approval of this work is required prior to final inspection and approval of the permit. 4. A National Permit Discharge Elimination System (NPDES) permit is required when more than one acre is being cleared. 5. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. 6. The applicant shall erect and maintain six foot (6') high chain link temporary construction fencing around the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. 7. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is responsible for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and /or your U.S. Fish and Wildlife Service permit. Development Engineering: (Contact: Justin T Johnson, 425-430-7291, jtjohnson@rentonwa.gov)  See Attached Development Engineering Memo August 20, 2018 Fire Authority: (Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov) 1. The fire impact fees are applicable at the rate of $829.77 per single family unit. This fee is paid at building permit issuance. Credit will be granted for the removal of the one existing home. 2. The fire flow requirement for a single family home is 1,000 gpm minimum for dwellings up to 3,600 square feet (including garage and basements). If the dwelling exceeds 3,600 square feet, a minimum EXHIBIT 21 DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA ADVISORY NOTES TO APPLICANT LUA18-000124 of 1,500 gpm fire flow would be required. A minimum of one fire hydrant is required within 300-feet of the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. 3. Fire department apparatus access roadways are required to be a minimum of 20-feet wide fully paved, with 25-feet inside and 45-feet outside turning radius. Fire access roadways shall be constructed to support a 30-ton vehicle with 75-psi point loading. Access is required within 150-feet of all points on the buildings. An approved turnaround is required for all dead end streets ex ceeding 150-feet in length. Maximum grade is 15%. Per city ordinance, all homes on dead end streets that exceed 500 - feet, up to 700-feet long, require all homes to be equipped with an approved fire sprinkler system. Proposed lots numbered 10, 11, 12 and 13 all require the installation of fire sprinkler systems. Community Services: (Contact: Leslie Betlach, 425-430-6619, lbetlach@rentonwa.gov) 1. Parks Impact fee per Ordinance 5670 applies. 2. The Transmission line easement as noted on the plat is being proposed for 2 tracts of Open Space. These Tracts shall remain open for public access as people currently use this transmission line easement as a north/south walking path connecting to May Cree k to the north and Sierra Heights Park to the South. The Environmental Checklist specifes closing this trail route to the public. DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: August 20, 2018 TO: Matt Herrera, Senior Planner FROM: Justin Johnson, Civil Engineer III, Plan Reviewer SUBJECT: Forest Terrace Preliminary Plat 2611 Union Ave NE LUA18-000124 I have completed a preliminary review of the application of the above-referenced proposal located at parcel 0423059142 and have the following comments: The applicant is proposing to subdivide the lots into 25 single family lots with tracts for drainage and open space. All existing structures on the parcels will be removed. Pipe casings are required for the portion of the new water and sewer mains that will cross over the Olympic Pipe Line’s (OPL) petroleum pipelines and under the overhead PSE electrical power transmission lines. Permits or consent agreements must be obtained from OPL and from PSE for the installation of all utilities within their easement. EXISTING CONDITIONS The Site is approximately 13.7 acres in size and is rectangular in shape. The existing site is developed with an existing single family residence and a large amount of trees located throughout the parcel. Water Water service is provided by the City of Renton. The site is in the Highlands service area in the 565’ hydraulic pressure zone. The approximate static water pressure in Union Avenue NE is 68 psi at an elevation of 408’. There is an existing 12” ductile iron dead end water main east of the site in Union Avenue NE that can deliver a maximum flowrate of 1,240 gallons per minute (gpm). Reference Project File WTR2702847 in COR Maps for record drawings. Sewer Sewer service is provided by the City of Renton. There is an existing 8” PVC sewer running from south to north in Union Avenue NE east of the site. Reference Project File WWP2702907 in COR Maps for record drawings. Wastewater in this main continues to flow approximately 300’ north to a lift station at the northern City boundary Storm Runoff along the Union Avenue NE frontage is conveyed north by a shallow ditch to the City of Renton boundary. There is an existing 12” piped storm drain along the eastern DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 2 of 6 August 16, 2018 frontage of Union Avenue NE. Reference Project File TED4002907 in COR Maps for record drawings. There is no on-site drainage system. Drainage from the site either infiltrates or sheet flows north. Slopes on the site are moderate to steep with the majority of the site sloping at 15% to 25% to the north. Some portions of the site have slopes that exceed 25%. Streets The proposed development frons Union Ave NE along the east property line. Union Ave NE is classified as a Minor Arterial. Existing right-of-way (ROW) width is approximately 60 feet. CODE REQUIREMENTS WATER 1. A new water main will be required within the new internal roadways, Road A and Road B from the existing 12” main in Union Avenue NE to the west property line of the subject property. The size of the internal water main will be a minimum of 8” and up to 12” depending on the fire flow demand of the new homes to be constructed within the development. The maximum flow rate of the internal water main will be limited to 1,240 gpm. The flow restriction is due to a 300-ft section of 8-inch water main in Union Ave NE from NE 25th St to the north property line of Sierra Heights Elementary School. If this 300-ft section of 8-inch pipe is replaced with a new 12-inch pipe, the flowrate of the existing 12-inch main in front of the subject development will increase to 3,000 gpm. Residential buildings that have over 3,600 square feet of gross building areas may have fire flow demand of 1,500 gpm or more which will require the installation of residential fire sprinkler system. Please verify with the Renton Regional Fire Authority to determine the preliminary fire flow demand and size the water main(s) accordingly to provide adequate flow to the new hydrants. A cathodic protection system and pipe casing is required for the portion of the new water main that will cross over the Olympic Pipe Line’s (OPL) petroleum pipelines and under the overhead PSE electrical power transmission lines. Permits or consent agreements must be obtained from OPL and from PSE for the installation of the water main within their easement. 2. Each new lot requires a separate 1” water service. The service line and meter will be installed by the City of Renton. A pressure reducing valve is required downstream of the meter if water pressure exceeds 80 PSI at the meter. The 2018 fee to install the service line is $2,850.00. This fee is payable at construction permit issuance. The 2018 drop-in water meter fee is $400.00 for a 3/4-inch meter or $460.00 for a 1-inch meter. This fee is payable at building permit issuance. 3. The development is subject to system development charges (SDCs) for water service. The 2018 water SDC for a lot with a 3/4" or 1” water meter is $3,727.00. SDCs are due at the time of construction permit issuance. 4. Fire hydrants per City standards shall be installed per Renton Regional Fire Authority requirements. A minimum of one fire hydrant is required within 300’ of proposed homes. There are two existing fire hydrants located along the eastern frontage of Union Avenue NE. One is located across from the proposed road (COR Facility ID HYD-NE-00567) and the other is located at the corner of Union Avenue NE and NE 27th Place (COR Facility ID HYD-NE-00984). DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 3 of 6 August 16, 2018 5. Water system improvements shall be designed in accordance with Appendix J of the City’s 2012 Water System Plan. Adequate horizontal and vertical separation between new water mains and other existing and proposed utilities (sewer lines, storm drains, gas lines, power and communication ducts) shall be provided for the operation and maintenance of the water main. Retaining walls, rockeries, or similar structures cannot be installed over the water main unless the water main is installed inside of a steel casing. 6. The water main needs to be extended to the west past the paved surface and located to the west of the proposed sidewalk. SEWER COMMENTS 1. The development is subject to system development charges (SDCs) for sewer service. The SDC for sewer service is based on the size of the domestic water service. The 2018 sewer SDC for a lot with a 3/4" or 1” water meter is $2,837.00 per lot. SDCs are due at the time of construction permit issuance. 2. The development is located in the Honey Creek Sewer Interceptor Special Assessment District (SAD). The development is subject to fees related to this SAD. A SAD fee of $250.00 will be collected for each lot. SAD fees are due at the time of construction permit issuance. 3. Each lot shall be served by a sewer main with a minimum diameter of 8”. Sewer mains and manholes shall be designed and installed in accordance with City and Department of Ecology standards. 4. Each lot will require an individual sewer service line. The service lines shall be designed and installed in accordance with the City standards. The service line shall flow by gravity to the main where possible. The minimum service line size is 6”. 5. If each lot in the development cannot feasibly be served by gravity sewer main and gravity side sewers further design coordination will be required with the City Plan Reviewer and the City’s Wastewater Utility Department. 6. The downstream lift station is appropriately sized for this development. No capacity analysis or modification to the lift station is required. 7. The existing home is served by a private on-site septic system. The septic system shall be abandoned in accordance with King County Department of Health regulations and Renton Municipal Code. 8. The proposed sewer main improvements as shown on the composite utility civil plan submitted with the Land Use Application provides the required 8-inch sewer main extension from the existing sewer main located in Union Avenue NE and extending western property line for future extension by the City. The required extension of the new 8-inch sewer main from Union Ave NE into the future public ROW is shown on the conceptual utilities plan and provides the required sanitary sewer service to lots accessing off of internal project street except Lot 25 which will DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 4 of 6 August 16, 2018 connect directly into Union Ave NE. The lots accessing from NE 27th Place will obtain sanitary sewer service from the existing 8-inch sewer main within NE 27th Place. a. The sewer main needs to be extended to the west past the paved surface and located to the west of the proposed sidewalk. b. The sewer main will need to connect into MH3732 located at the center of the intersection at NE 27th Place. In order to meet flow requirements the sewer will need to be relayed along the east side of Union Ave to the lift station. STORM DRAINAGE COMMENTS 1. The development is subject to stormwater system development charges (SDCs). The 2018 stormwater SDC is $1,718.00 per lot. The SDC will be collected for each new lot. SDCs are due at the time of construction permit issuance. 2. Drainage plans and a drainage report complying with the adopted 2017 Renton Surface Water Design Manual will be required. 3. A preliminary Drainage Plan and Technical Information Report (TIR), dated June 18, 2018, was submitted by Barghausen Engineering with the Land Use Application. Based on the City of Renton’s flow control map, the site falls under Flow Control Duration Standards (Forested Conditions) and is located within the May Creek drainage basin. The development is subject to a Full Drainage Review in accordance with the 2017 Renton Surface Water Design Manual (RSWDM). All nine core requirements and the six special requirements have been discussed in the Technical Information Report. The detention, water quality and conveyance shall be designed in accordance with the RSWDM that is current at the time of the civil construction permit application. The applicant has proposed to install bypass located within Union Ave that collects the storm runoff from the south of the proposed frontage and connects to the norther Catch Basin. a. The development is proposes to install a stormwater detention vault located on the Northeast corner of the proposed development. The Storm water vault has been sized assuming that no BMP credits will be used for the individual build lots. b. The development is also proposing to install a detention pipe system within the access road located on the north end of the property. System will need to be sized in accordance with the 2017 RSWDM. c. The applicant is proposing to use a stormfilter in order for the project to meet the water quality requirements. The stormfilter is proposed within the access road along the north side of the detention vault. d. Applicant is proposing to discharge the water from the project via an 18 inch storm pipe located on the west side of Union Avenue. i. Pipe should be located within the curb line of the future roadway. Based on the proposed plans the storm line should be relocated to the east of the power poles. DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 5 of 6 August 16, 2018 e. On-site BMPs satisfying Core Requirement #9 will be required for the site. On-site BMPs shall be evaluated in order of preference by feasibility as described in Section C.1.3 of the 2017 RSWDM. Applicant proposes to use bio retention facilities wherever possible in the planter strips along the onsite roadway. Perforated pipes will be installed for each of the individual lots and will be tight lined to the proposed stormwater conveyance system. i. Per the Gerotechnical report submitted by Terra Associates, Inc, Bioretention is not suitable for this site due to the limited infiltration ii. Basic dispersion may be feasible. If feasible, basic dispersion should be implemented to the maximum extent feasible which may be more than 10% of the total lot area. Feasibility of on-site BMPs for each lot will be reviewed at the time of single family building permit. The restricted footprint BMP can still be used in addition to receive the 10% lot area modeling credit when sizing the detention vault. Final TIR should clearly explain how target surfaces from plat infrastructure (road and sidewalk) are mitigated by on-site BMPs or how BMPs are infeasible for these surfaces. 4. A Geotechnical Report, dated July 19th, 2017, completed by Terra Associates, Inc. for the site has been provided. The submitted report describes two different sections of soil characteristics. The southern section consists of dense silty sands with gravel where the norther portion of the site contains medium dense to dense sand with varying amounts of silt and gravel. Based on the report the site conditions consist of type C soils as described from the International building code, which contains a low risk for seismic hazard. The Geotechnical report includes multiple preventative measure that should be following during construction. Major concerns can be prevented by limiting site clearing and grading activities to dry months and limiting the area of disturbance. The Geotechnical report mentions that infiltration is not feasible due the types of soils that are located onsite, the geotech recommends that stormwater be detained to control the release of the stormwater. 5. Storm drainage improvements along all public street frontages (new internal site streets and Union Avenue NE) are required to conform to the City’s street standards. New storm drain shall be designed and sized in accordance with the standards found in Chapter 4 of the 2017 Renton Surface Water Design Manual. 6. A Construction Stormwater General Permit from the Washington Department of Ecology is required as site clearing will exceed one acre. TRANSPORTATION/STREET COMMENTS 1. The 2017 transportation impact fee is $5,430.85 per single family home. Fees are payable at the time of building permit issuance for each individual home. 2. All new internal site streets shall be designed in accordance with the residential access street standards found in RMC 4-6-060. The minimum right of way width for a residential access street is 53’. The minimum paved roadway width is 26’ which includes 2 – 10’ travel lanes and 1 – 6’ parking lane. A 0.5’ curb, 8’ planter, and 5’ sidewalk are required along both sides of the roadway. The required intersection turning radius is 25’ when intersecting with another DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 6 of 6 August 16, 2018 residential access street and 35’ when intersecting with an arterial street. Street grades shall not exceed 15%. a. Applicant will need to install a guardrail off of the north side of Road B and along the access road. b. The northside of cul-de-sac will need to maintain an 8-foot planter strip and 5 foot sidewalk to the end of the western property line. The cul-de-sac shall be located within City of Renton Right of way and shall need to be dedicated to the city. The City will be responsible for maintenance within this area and lot lines will need to be adjusted accordingly. The planter width should be maintained throughout the perimeter of the cul-de-sac. c. At the west end of the proposed Road A, a Future road connection sign will need to be installed with a permanent type 3 barricade. d. The proposed width does not include 26 feet of pavement as required. Roadway width will need to be adjusted during the civil construction permit application. e. Applicant will need to ensure that all proposed ramps are ADA compliant and should be shown on the plan set for the civil construction permit. 3. Union Avenue NE is classified as a minor arterial. Per RMC 4-6-060, the minimum right of way width for a minor arterial with four lanes is 91’. The existing right of way width is approximately 60’. The minimum paved roadway width is 54’ consisting of 4 – 11’ travel lanes and 2 – 5’ bike lanes. A 0.5’ curb, 8’ planter, 8’ sidewalk, and 2’ clear at back of sidewalk are required along each side of the roadway. A minimum 35’ curb return (turning radius) is required at the intersection with the new internal site street. A dedication of approximately 15.5’ along the Union Avenue NE frontage will be required to provide a half street right of way width of 45.5’ However, the City’s Transportation Department has determined a modified minor arterial standard is more appropriate for this portion of Union Avenue NE. The modified minor arterial standard would require a right of way width of 81’. The paved roadway width required would be 44’ consisting of 2 – 11’ travel lanes, 1 – 12’ travel lane, and 2 – 5’ bike lanes. A 0.5’ curb, 8’ planter, 8’ sidewalk, and 2’ clear at the back of sidewalk are required along each side of the roadway. A right of way dedication of approximately 10.5’ along the Union Avenue NE frontage will be required to provide a half street right of way width of 40.5’. A street modification would need to be submitted with the site plan submittal to request this modified street standard. a. Applicant has submitted a street modification that has address the concerns of the transportation division and designed a cross section consistent with what the City of Renton has outlined in the pre-application meeting. 4. A Traffic Impact Analysis (TIA) was performed by TenW on December 14th 2017. The Transportation Impact Analysis estimates an increase of 22 am trips and 26 pm trips. 5. Street lighting is required along all new internal site streets and along the Union Avenue NE frontage. Required streetlights shall be per City standards. A street lighting analysis and plan shall be submitted with the construction permit. 6. Per RMC 4-4-080, the maximum width of a single loaded garage driveway is 9’ and the maximum width of a double loaded garage driveway is 16’. If a garage is not present, the maximum driveway width is 16’. Driveways shall not be closer than 5’ to any property line. DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA Forest Terrace Subdivision Plat – LUA18-000124 Page 7 of 6 August 16, 2018 7. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Restoration and Overlay requirements. GENERAL COMMENTS 1. The fees listed are for 2018. The fees that are current at the time of the respective permit issuance will be levied. Please see the City of Renton website for the current development fee schedule. 2. Retaining walls that are 4’ or taller from bottom of footing and stormwater detention vaults will require a separate building permit. Structural calculations and plans prepared by a licensed engineer will be required as part of the building permit review. 3. All civil plans shall conform to the current City of Renton survey and drafting standards. Current drafting standards can be found on the City of Renton website. 4. A separate plan submittal will be required for a construction permit for utility work and street improvements. All plans shall be prepared by a licensed Civil Engineer in the State of Washington. 5. Please see the City of Renton Development Engineering website for the Construction Permit Application and Construction Permit Process and Submittal Requirements. Please contact the City to schedule a construction permit intake meeting. 6. All plan review for the City is now paperless. Please see http://rentonwa.gov/paperless/ for more information. DocuSign Envelope ID: 992E328A-402E-40F6-983D-87A47A2A03BA DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT Planning Division 1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2 www.rentonwa.gov OF ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE - MITIGATED (DNS-M) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION DNSM: THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED ACTION HAS PROBABLE SIGNIFICANT IMPACTS THAT CAN BE MITIGATED THROUGH MITIGATION MEASURES. DATE OF NOTICE OF ENVIRONMENTAL DETERMINATION: September 21, 2018 PROJECT NAME/NUMBER: Forest Terrace Preliminary Plat / LUA18-000124, ERC, PP, MOD PROJECT LOCATION: 2611 and 2623 Union Ave NE / APNs 042305-9142 and 042305-9114 LOCATION WHERE APPLICATION MAY BE REVIEWED: Applicant documents are available online through the City of Renton Document Center website. See also https://bit.ly/2MsHv3i PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval, Environmental Review (SEPA), Critical Areas Variance, and two (2) modifications to subdivide a 596,570 square foot (13.70 acre) site located at 2611 Union Ave NE (subject property) into 25 single-family residential lots, four (4) open space tracts, and one (1) drainage tract. The subject property is located in the Residential-4 (R-4) zoning classification and Residential Low Density Comprehensive Plan land use designation. Proposed lot sizes would range from 9,038 to 19,584 square feet with an overall density of approximately 2.14 dwellings per net acre. One (1) existing single -family residence on the subject property would be removed. Access to the site would be via a new public residential access street extending from Union Ave NE through the subject property with stubs for future connectivity along the north and western property limits. The applicant would also construct frontage improvements on Union Ave NE along the subject property and the frontage of 2623 Union Ave NE. Stormwater would be conveyed via a system of catch basins and storm pipes throughout the development with flow control provided via two (2) detention tanks and one (1) detention vault located on the northwest portion of the property. A proposed stormfilter would provide water quality treatment. New eight (8) inch sewer and eight (8) inch water mains would be constructed within the subdivision's new public street and connect to the existing sewer and water facilities located in Union Ave NE. The applicant has requested a critical areas variance to remove an existing protected slope on the eastern portion of the subject property to construct a section of the new internal public street with the remaining slope proposed to be replaced with a terraced retaining wall. The applicant has requested a modification to the residential retaining wall height limitation of six (6) feet with proposed rockeries up to 10-feet in height in the southwestern portion of the of the subject property. A second modification is requested for frontage improvements along Union Ave NE for a modified minor arterial standard. A Lot Line Adjustment (LUA18-000125) is also NOTICE under review for the subject property and the abutting 2623 Union Ave NE that would alter the abutting lot’s property lines to accommodate the proposed subdivision’s new public street alignment and frontage improvements on Union Ave NE. The City’s Critical Areas map identifies potential regulated slopes on the property between 25-40 percent with isolated areas greater than 40-percent. The applicant has proposed to retain 119 of the subject property’s 847 viable trees. The applicant has submitted an arborist report, geotechnical report, transportation impact analysis, and drainage report with the preliminary plat application. Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on October 5, 2018, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady W ay, Renton, WA 98057. Appeals to the Examiner are governed by City of RMC 4-8-110 and information regarding the appeal process may be obtained from the Renton City Clerk’s Office, (425) 430-6510. PUBLIC HEARING: A public hearing is tentatively scheduled for October 23, 2018 at 11:00 AM before the Renton Hearing Examiner in Renton Council Chambers on the 7th floor of Renton City Hall, located at 1055 South Grady Way. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. 1 Rev: 08/2016 18396.008 ENV ENVIRONMENTAL CHECKLIST Planning Division 1055 South Grady Way-Renton, WA 98057 Phone: 425-430-7200 | www.rentonwa.gov PURPOSE OF CHECKLIST: Governmental agencies use this checklist to help determine whether the environmental impacts of your proposal are significant. This information is also helpful to determine if available avoidance, minimization or compensatory mitigation measures will address the probable significant impacts or if an environmental impact statement will be prepared to further analyze the proposal. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Please answer each question accurately and carefully, to the best of your knowledge. You may need to consult with an agency specialist or private consultant for some questions. You may use “not applicable” or "does not apply" only when you can explain why it does not apply and not when the answer is unknown. You may also attach or incorporate by reference additional studies reports. Complete and accurate answers to these questions often avoid delays with the SEPA process as well as later in the decision-making process. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. INSTRUCTIONS FOR LEAD AGENCIES: Additional information may be necessary to evaluate the existing environment, all interrelated aspects of the proposal and an analysis of adverse impacts. The checklist is considered the first but not necessarily the only source of information needed to make an adequate threshold determination. Once a threshold determination is made, the lead agency is responsible for the completeness and accuracy of the checklist and other supporting documents. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: For nonproject proposals (such as ordinances, regulations, plans and programs), complete the applicable parts of sections A and B plus the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). Please completely answer all questions that apply and note that the words "project," "applicant," and "property or site" should be read as "proposal," "proponent," and "affected geographic area," respectively. The lead agency may exclude (for non-projects) 2 Rev: 08/2016 18396.008 questions in Part B - Environmental Elements –that do not contribute meaningfully to the analysis of the proposal. A. BACKGROUND 1. Name of proposed project, if applicable: Forest Terrace 2. Name of applicant: Pulte Homes of WA, Inc. 3. Address and phone number of applicant and contact person: Applicant Pulte Homes of WA, Inc. 3535 Factoria Boulevard S.E., No. 110 Bellevue, WA 98006 (425) 216-3466 Contact: Kyle Lublin Contact Person Barghausen Consulting Engineers, Inc. 18215 72nd Avenue South Kent, Washington 98032 Contact: Ivana Halvorsen 4. Date checklist prepared: February 2018, Revised June 2018 5. Agency requesting checklist: City of Renton 6. Proposed timing or schedule (including phasing, if applicable): Plat infrastructure construction is expected to occur in 2019. There are no plans to phase the project. Construction of the project is expected to take 4 to 6 months for site development and another 12 to 24 months for home construction, depending on market conditions. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. · Preliminary Plat plan set prepared by Barghausen Consulting Engineers, Inc. 3 Rev: 08/2016 18396.008 · Geotechnical Report prepared by Terra Associates, Inc. dated July 19, 2017 · Wetland and Stream Reconnaissance prepared by Altmann Oliver Associate, LLC dated May 20, 2017 · Arborist Report prepared by Tree Solutions Inc. dated December 15, 2017 · Boundary and Topographic Survey prepared by Axis Survey and Mapping dated November 29, 2017 · Boundary Line Adjustment prepared by Barghausen Consulting Engineers, Inc. · Preliminary Technical Information Report/Drainage Report prepared by Barghausen Consulting Engineers, Inc. dated June 18, 2017 · Traffic Analysis Report prepared by Transportation Engineering Northwest LLC (TENW) dated December 14, 2017 · Geotechnical Slope Stability Analysis prepared by Terra Associates, Inc. dated June 18, 2018 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No pending applications or approvals are known. 10. List any government approvals or permits that will be needed for your proposal, if known. · City of Renton Preliminary Plat Approval · City of Renton SEPA Determination · City of Renton Modifications (Retaining Wall and Street Standards) · City of Renton Variance (Alteration of a Protected Steep Slope) · City of Renton Construction Plan Approvals (roads, storm, grading, and utilities) · King County Right-of-Way Use Permit · King County Off-Site Engineering Construction Permit (if applicable) · Ancillary City of Renton Construction Permits, including Building Permits for Retaining Walls · Department of Natural Resources Forest Practice Application (if applicable) · Department of Ecology NPDES Permit · City of Renton Final Plat Approval · City of Renton Building Permits for Residential Homes · City of Renton Residential Design Standards Review 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.) 4 Rev: 08/2016 18396.008 The project involves the subdivision of approximately 13.7 acres of land into 25 single-family homes and several tracts for access, utilities, and open space. There will be approximately 1,356 lineal feet of public roadway (with utilities) constructed to serve the proposed lots and approximately 484 lineal feet of frontage improvements on Union Avenue N.E. An easement cooridor that contains Puget Sound Energy power lines and Olympic Pipeline natural gas mains bisects the site. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The subject property is located in Section 4, Township 23 North, Range 5 East and abuts Union Avenue N.E. at 2611 Union Avenue N.E. Please reference the attached Plan Set and Vicinity Map. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (check or circle one): Flat, rolling, hilly , steep slopes, mountainous, other _____________ b. What is the steepest slope on the site (approximate percent slope)? Slopes on the site approach 50 percent in localized areas. c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any agricultural land of long-term commercial significance and whether the proposal results in removing any of these soils. Soils on the site consist of Everett gravelly sandy loam (EvB, EvD) and Alderwood gravelly sandy loam (AgD, AgC). These soils are considered prime farmland. Historical use of the site for farmland is unknown; however, based on the King County iMap 1936 aerial photos, it does not appear that the site has been used for farm use. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. 5 Rev: 08/2016 18396.008 The applicant is not aware of any history of unstable soils on site or in the vicinity. The site is considered a low-seismic hazard area, high-erosion hazard area, and a moderate-landslide hazard area pursuant to the geotechnical engineering report. e. Describe the purpose, type, total area, and approximate quantities and total affected area of any filling, excavation, and grading proposed. Indicate source of fill. The site will be mass graded to accommodate the proposed house sites and new roads that will stub to adjacent properties to the north and west. Earthwork will be balanced on site as much as possible; however, a complete balance may not be possible. Approximately 80,000 cubic yards of cut and 110,000 cubic yards of fill will constitute the grading. Approximately 30,000 cubic yards of fill is likely to be imported during site development. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Soil erosion could occur as a result of the site clearing, excavation, and grading activities once soils are exposed to rainfall. However, as required by the City Code, a Temporary Erosion and Sedimentation Control Plan (TESCP) will be prepared and implemented to mitigate for such erosion potential. Additionally, erosion control Best Management Practices (BMPs) will be provided (i.e., straw mulch, silt fences, rock-check dams, etc.). g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? The on-site impervious surface (roadways and sidewalks) will be approximately 61,300 square feet (1.41 acres), equaling approximately 10 percent of the gross site area. Based on a maximum impervious area per lot of 80 percent, we have estimated a total impervious area of approximately 201,520 square feet (4.63 acres). Total 61,300 + 201,520 = 262,820 square feet (6.03 acres) = 44 percent of the gross site area. The maximum allowed impervious area for the site is 50 percent. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: All applicable BMPs and other typical and necessary TESC measures will be implemented and maintained during the plat and home construction phases. An NPDES permit will be acquired and the site will be monitored during the entire buildout phase of the plat. 6 Rev: 08/2016 18396.008 2. AIR a. What types of emissions to the air would result from the proposal during construction, operation, and maintenance when the project is completed? If any, generally describe and give approximate quantities if known. During plat and home construction, emissions from construction equipment and vehicles will occur on a temporary basis. When houses are completed, there will be emissions generated from automobile, service truck traffic, and other typical machinery used in single-family neighborhoods. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. The site is surrounded by existing single-family developments and a public school that are the source of emissions from potential fireplaces and vehicles. In addition, the site is located adjacent to Union Avenue N.E. which has moderate vehicular traffic. These sources and emissions are typical of suburban communities and are not expected to have any impact on the proposal. c. Proposed measures to reduce or control emissions or other impacts to air, if any: All construction equipment will be equipped to comply with all applicable air-quality regulations. Dust will be controlled during the dry season with water trucks. Gas fireplaces will be used in accordance with requirements of the Puget Sound Air Quality Board. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. There are no known surface waters on site or within 200 feet of the site. Unregulated roadside ditches exist along Union Avenue N.E. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. No site work will occur within 200 feet of any surface waters. 7 Rev: 08/2016 18396.008 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. The project does not propose to fill or dredge any surface waters. Existing off- site roadside ditches may be cleaned and regraded. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No. 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. No. The site is not mapped on FEMA or King County maps as flood plain. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No. b. Ground Water: 1) Will groundwater be withdrawn from a well for drinking water or other purposes? If so, give a general description of the well, proposed uses and approximate quantities withdrawn from the well. Will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. The project will be served by public water and sanitary sewer service from the City of Renton. The project will not involve any groundwater withdrawals or any discharge to the groundwater of septic system effluent. No discharges to the groundwater aquifer are proposed. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals. . . ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. None. c. Water runoff (including stormwater): 8 Rev: 08/2016 18396.008 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. Stormwater will be collected by a series of catch basins and conveyed by underground stormwater pipes to a water quality and detention vault in Tract A. The stormwater facility will discharge to the north via a pipe system and the roadside ditch along Union Avenue N.E. Stormwater runoff generated by the lots, Tracts A and F, Road A, and the Union Avenue N.E. frontage area will be routed to a detention vault. Stormwater generated by Road B and Tract B will be routed to a detention tank. The outfall from the detention vault and the detention tank discharges into a StormFilter for basic water quality treatment. The discharge from the StormFilter continues to a pipe system in Union Avenue N.E. which routes to a drainage swale along Union Avenue N.E., which finally connects to an existing catch basin at the intersection of Union Avenue N.E. and S.E. 95th Way. The stormwater continues within the existing drainage system outlets onto a hillside on the northern part of S.E. 95th Way which will eventually flow to May Creek. 2) Could waste materials enter ground or surface waters? If so, generally describe. This is unlikely. As discussed above, all stormwater will be collected and conveyed to new water quality facilities on site. All sewage disposals will be via the public sewer system. No on-site septic systems are proposed. 3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, describe. No. d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage pattern impacts, if any: The project is designed to detain and treat stormwater pursuant to local and state requirements. Discharge of stormwater is to the natural location. 4. PLANTS a. Check the types of vegetation found on the site: X deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other X shrubs X grass 9 Rev: 08/2016 18396.008 pasture crop or grain orchards, vineyards or other permanent crops. wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other water plants: water lily, eelgrass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? Trees and understory plants will be removed in the development area and for grading. c. List threatened and endangered species known to be on or near the site. The applicant is not aware of any threatened or endangered plant species known to be on or near the site. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Trees will be retained on site pursuant to the arborist's report. Preserved trees and vegetation will include maple and fir which are the dominant species on the site. e. List all noxious weeds and invasive species known to be on or near the site. No specific noxious weeds and invasive species are known to be on or near the site. 5. ANIMALS a. List any birds and other animals which have been observed on or near the site or are known to be on or near the site. No specific animals have been observed by the applicant; however, typical species as noted below would be expected as flyovers (birds) or pass-through animals in a typical suburban forest. Examples include: Birds: hawk , heron, eagle , songbirds , other: Mammals: deer , bear, elk, beaver, other: Fish: bass, salmon, trout, herring, shellfish, other b. List any threatened and endangered species known to be on or near the site. The applicant is not aware of any threatened or endangered animal species known to be on or near the site. 10 Rev: 08/2016 18396.008 c. Is the site part of a migration route? If so, explain. It is our understanding that the site is located in the "Western Flyway" migration route. d. Proposed measures to preserve or enhance wildlife, if any: Some habitat will be provided on site through preservation of approximately 4.3 acres of permanent native open space (Tract E) that will provide some wildlife habitat. e. List any invasive animal species known to be on or near the site. To our knowledge there are no invasive animal species known to be on or near the site. 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. Each lot will require power, natural gas, cable, and phone service. Power and natural gas will be the primary source for heating. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: All future homes will be designed in accordance with the Washington State Energy Code. Also, as required by code, the streetlights will use LED luminaires to reduce electrical consumption. 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste that could occur as a result of this proposal? If so, describe. 11 Rev: 08/2016 18396.008 This is unlikely. However, during construction there is always the risk of an accident involving construction equipment and hazardous or flammable materials during home construction. These risks are common to all construction sites. The site is bisected by a regional utility corridor that contains natural gas mains and power lines. The applicant will coordinate with the applicable utilities for permits and construction methods near and around the power lines and the natural gas main. 1) Describe any known or possible contamination at the site from present or past uses. There are none to our knowledge. 2) Describe existing hazardous chemicals/conditions that might affect project development and design. This includes underground hazardous liquid and gas transmission pipelines located within the project area and in the vicinity. The site is bisected by a regional utility corridor that contains natural gas mains and power lines. The applicant will coordinate with the applicable utilities for permits and construction methods near and around the power lines and the natural gas main. 3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the project's development or construction, or at any time during the operating life of the project. During the construction of the project, there may be stored diesel fuel and/or products. However, upon the completion of the construction, these materials will not be present. 4) Describe special emergency services that might be required. No special emergency services are anticipated. 5) Proposed measures to reduce or control environmental health hazards, if any: The site is bisected by a regional utility corridor that contains natural gas mains and power lines. The applicant will need to coordinate with the applicable utilities for permits and construction methods near and around the power lines and the natural gas main. b. Noise 12 Rev: 08/2016 18396.008 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Existing sources of noise in the immediate area are automobile traffic as well as regional urban/suburban noises. 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. During the construction phase, there will be short-term impacts to noise levels from the operation of heavy equipment and truck traffic as well as contractor tools. These impacts will be generated only during the hours of operation and will terminate permanently upon completion of construction. Upon occupancy of the homes, there will be added noise impacts from residential vehicles and activities consistent with what is already found in the surrounding community. 3) Proposed measures to reduce or control noise impacts, if any: All equipment and construction operations will comply with applicable City of Renton noise ordinances. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on nearby or adjacent properties? If so, describe. Adjacent properties include residential development and a public school. The proposed project is consistent with the surrounding properties. b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other uses as a result of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest land tax status will be converted to nonfarm or non-forest use? Historical use of the site for farmland is unknown; however, based on the King County iMap 1936 aerial photos, it does not appear that the site or immediate surrounding properties have been used for farming. 1) Will the proposal affect or be affected by surrounding working farm or forest land normal business operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If so, how: No. There is no existing farmland in the surrounding area. 13 Rev: 08/2016 18396.008 c. Describe any structures on the site. One home exists on the site. d. Will any structures be demolished? If so, what? The existing home will be demolished. e. What is the current zoning classification of the site? R-4, low density residential 4 du/acre. f. What is the current comprehensive plan designation of the site? Residential Low Density. g. If applicable, what is the current shoreline master program designation of the site? The site is not within the shoreline jurisdiction. h. Has any part of the site been classified as a critical area by the city or county? If so, specify. The site contains erosion and landslide hazard areas based on existing topography. i. Approximately how many people would reside or work in the completed project? Based on the average household size of 2.77 people per household and the average family size of 3.17 people per household, the expected population of the plat is expected to be in the range of 69 to 79 residents. j. Approximately how many people would the completed project displace? The project will not displace any people. k. Proposed measures to avoid or reduce displacement impacts, if any: None. l. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: As part of the preliminary plat process, the project will be reviewed in accordance with the R-4 development standards which are compatible with the surrounding 14 Rev: 08/2016 18396.008 property. Development as planned is consistent with neighboring development on both sides of the project. m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term commercial significance, if any: Not applicable to this project. There is no agricultural or forest lands near the site. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. The project will create 24 new housing units in the middle-income range. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. One house will be eliminated. c. Proposed measures to reduce or control housing impacts, if any: None. 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? The tallest structures would be the proposed single-family homes which have a maximum height as established in the zoning code of 30 feet without a variance. b. What views in the immediate vicinity would be altered or obstructed? Development of the site will not obstruct any views. c. Proposed measures to reduce or control aesthetic impacts, if any: All future homes within the project are subject to the City's building design standards. 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? 15 Rev: 08/2016 18396.008 Construction is expected to be in the daytime hours only (7 a.m. to 6 p.m. or 7 p.m.). During nighttime there may be streetlight illumination and car headlights as well as both interior and exterior lighting in houses typically found in single-family subdivisions. b. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off-site sources of light or glare may affect your proposal? None. d. Proposed measures to reduce or control light and glare impacts, if any: None. 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? Within 1 mile of the site are several recreation opportunities, including: · Sierra Heights Elementary School · Sierra Heights Park · May Creek Park · Honey Dew Park · Kiwanis Park b. Would the proposed project displace any existing recreational uses? If so, describe. The project will restrict and close to the public an informal trail within the power line easement that people have been using for walking and biking. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: The project will pay park mitigation fees as required. Private on-site open space will be retained for the residents of the project. 13. HISTORIC AND CULTURAL PRESERVATION 16 Rev: 08/2016 18396.008 a. Are there any buildings, structures, or sites located on or near the site that are over 45 years old listed in or eligible for listing in national, state, or local preservation registers? If so, specifically describe. According to the Assessor's records, the existing home on the site was built in 1954; however, the home is not listed in the preservation register. b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural importance on or near the site? Please list any professional studies conducted at the site to identify such resources. The applicant is not aware of any historical cultural use of the site. c. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the project site. Examples include consultation with tribes and the department of archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc. A search of the area on WISAARD database revealed no cultural or historic resources near the site. d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources. Please include plans for the above and any permits that may be required. In the event that cultural or historic artifacts are uncovered during construction, the developer will stop work and contact local government, tribes, and an archaeologist for additional review and permits as needed. 14. TRANSPORTATION a. Identify public streets and highways serving the site or affected geographic area and describe proposed access to the existing street system. Show on site plans, if any. The site is served by Union Avenue N.E., a minor arterial. A new public road will be constructed opposite N.E. 27th Place. b. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not, what is the approximate distance to the nearest transit stop? There are no transit stops or routes within 1/4 mile of the site. The Renton Bible 17 Rev: 08/2016 18396.008 Church Park and Ride lot located at 973 Union Avenue N.E. is approximately one mile south of the project site. c. How many additional parking spaces would the completed project or non-project proposal have? How many would the project or proposal eliminate? Each home will have two on-site parking stalls as required. No parking will be eliminated. d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state transportation facilities, not including driveways? If so, generally describe (indicate whether public or private). The project will improve Union Avenue N.E. along its frontage to meet the City of Renton's (modified) Minor Arterial road standards. Improvements will include pavement widening and the addition of a curb, gutter, sidewalk, planter strip with street trees, and street lighting. e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. The site is not near water, rail, or air transportation. f. How many vehicular trips per day would be generated by the completed project or proposal? If known, indicate when peak volumes would occur and what percentage of the volume would be trucks (such as commercial and non- passenger vehicles). What data or transportation models were used to make these estimates? Based on the Traffic Impact Analysis prepared for the project, approximately 281 Average Daily Trips (ADT) and 27 PM Peak Hour trips will result from the construction of new homes. g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products on roads or streets in the area? If so, generally describe. There is no agricultural or forest activity in the area so the project will not impact those activities. h. Proposed measures to reduce or control transportation impacts, if any: The project will construct frontage improvements on Union Avenue N.E. and new roads, including stubs for future connections. Payment of traffic mitigation fees will offset long-term traffic impacts. 18 Rev: 08/2016 18396.008 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, public transit, health care, schools, other)? If so, generally describe. The future construction of homes on each of the 25 lots will result in a proportional need for public services normally associated with single-family development such as police, fire, health care, schools, postal service, garbage service, etc. b. Proposed measures to reduce or control direct impacts on public services, if any. Property tax revenue will assist with offsetting the proportional impact on public services. Mitigation fees will be collected at the time of building permit for individual lots to offset traffic, fire, and school impacts. 16. UTILITIES a. Circle utilities are currently available at the site: electricity , natural gas , water, refuse service , telephone , sanitary sewer, septic system, other b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. The project will install pipes 8 inches in diameter and larger on site and off site for water, sewer, and/or stormwater utilities. Impacts to public or private property or critical areas, if any, will be restored to pre-existing conditions. · Water and Sewer: City of Renton · Electricity and Natural Gas: Puget Sound Energy · Refuse: Republic Services, Inc. · Telephone: CenturyLink, Inc. · Cable: Comcast Corporation 19 Rev: 08/2016 18396.008 C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Proponent Signature: Name of Signee (printed): Ivana Halvorsen Position and Agency/Organization: Senior Planner, Barghausen Consulting Engineers, Inc. Date Submitted: June 2018 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18 FOREST TERRACE PRELIMINARY PLATFOREST TERRACE PRELIMINARY PLAT6/18/18