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HomeMy WebLinkAboutEX_03_ECF_Environmental_Checklist_2023_signed_(2)SEPA Environmental checklist September 2023 Page 1 (WAC 197-11-960) SEPA1 Environmental Checklist 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 Please adjust the format of this template as needed. 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) questions in “Part B: Environmental Elements” that do not contribute meaningfully to the analysis of the proposal. 1 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/Checklist-guidance EXHIBIT 3 RECEIVED 09/29/2025 jding PLANNING DIVISION Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 2 (WAC 197-11-960) Background Find help answering background questions2 1. Name of proposed project, if applicable: Renton Highlands Short Plat (Ultima Homes LLC) 2. Name of applicant: Altaf Gilani, Ultima Homes LLC 3. Address and phone number of applicant and contact person: 17912 NE 27th St, Redmond, WA 98052 4. Date checklist prepared: September 2025 5. Agency requesting checklist: City of Renton 6. Proposed timing of schedule (including phasing, if applicable): 6-lot short plat with road extension (Pasco Place SE) — construction to begin after City approvals. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. None beyond proposed 6-lot plat. (at this point) 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Critical Areas Report (Sewall Wetland Consulting, May 20, 2025) 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. Preliminary Plat, SEPA Determination, Grading/Drainage Permits, Utility connections, possibly Mitigation Bank approval for wetland impacts. 10. List any government approvals or permits that will be needed for your proposal, if known. Parcel #1123059068, approx. 1.93 acres 5815 NE 8th Street, Renton, WA 98059. Legal description included in CAR. 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.) 2 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-A-Background Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 3 (WAC 197-11-960) The proposal is to subdivide an approximately 1.93-acre parcel into six single-family residential lots in the City of Renton. The project includes construction of homes, driveways, utilities, and stormwater facilities. To provide access, the City requires extension of Pasco Place SE into the site. This roadway extension will necessitate filling of two small onsite Category IV wetlands (totaling 991 square feet), which will be mitigated through the City’s Mitigation Bank or King County Mitigation Reserve Program. Associated infrastructure includes sanitary sewer, water, storm drainage, and underground utilities. The completed plat will result in six new detached housing units consistent with surrounding residential development. 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 site is Parcel #1123059068, located on the south side of NE 8th Street/SE 120th Street in the City of Renton, Washington. The property lies within the SW ¼ of Section 11, Township 23 North, Range 5 East, W.M. The total area is approximately 1.93 acres. The parcel is irregularly shaped and is bounded by single-family residential lots to the north, south, and west. The site consists of a mix of undeveloped forest, old pasture, and disturbed areas. Legal description, vicinity map, and wetland delineation survey are included in the Critical Areas Report prepared by Sewall Wetland Consulting (May 20, 2025) Environmental Elements 1. Earth Find help answering earth questions3 a. General description of the site: Mix of undeveloped forest, old pasture, and disturbed areas Circle or highlight one: Flat, rolling, hilly, steep slopes, mountainous, other: Mostly flat b. What is the steepest slope on the site (approximate percent slope)? Most of the parcel is flat to gently sloping (less than 5%). 3 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist- guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-earth Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 4 (WAC 197-11-960) 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. The site soils are classified as dense to very dense sand/silt (silty sand, SM) with glacial till characteristics (Type C soils) These soils are not classified as prime farmland or agricultural soils of long-term commercial significance. The proposal will not remove any designated agricultural soils. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. There are no known surface indications or history of unstable soils on the project site or in the immediate vicinity The geotechnical investigation did not identify landslide hazards, liquefaction, or slope instability. The site is generally flat with slopes less than 5%. 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. Purpose: To construct six single-family residential lots, utilities, storm drainage vault, and road extension. Total grading area: Approximately 1.93 acres (entire site). Quantities: Estimated 2,500–3,500 cubic yards of cut and fill combined (based on TIR and civil plans). Fill material: Primarily onsite soils reused where feasible, supplemented by imported structural fill and crushed rock from local commercial sources Affected area: Includes the roadway extension (Pasco Place SE), home pads, driveways, utility corridors, and the storm vault location. f. Could erosion occur because of clearing, construction, or use? If so, generally describe. Yes, limited erosion could occur during clearing and grading due to soil disturbance. However, the site is generally flat with slopes less than 5%, which reduces erosion risk. Standard construction best management practices (BMPs) will be implemented to mitigate potential erosion, including silt fencing, stabilized construction entrances, temporary soil covering, and catch basin inlet protection. These measures are included in the project’s Civil Plans and SWPPP and will be installed and maintained throughout construction to ensure soil erosion is minimized Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 5 (WAC 197-11-960) g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? After development, about 35–40% of the site will be covered by impervious surfaces (roofs, driveways, roads, sidewalks). Civil calculations show ~0.88 acres of impervious surface out of 2.04 acres h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any. The project includes a Construction Stormwater Pollution Prevention Plan (CSWPPP) with the following BMPs: Silt fences, filter fabric, and stabilized construction entrances. Stockpiling and re-use of topsoil onsite per City standards. Temporary plastic covering of exposed soils during wet season. Inlet protection for catch basins and use of a detention vault to manage runoff. Daily inspection and maintenance of erosion controls during construction 2. Air Find help answering air questions4 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 construction, short-term air emissions will include dust (particulate matter) from grading and clearing, and exhaust emissions (carbon monoxide, nitrogen oxides, hydrocarbons, and particulate matter) from construction equipment and trucks. These emissions will be temporary and localized. After completion, air emissions will be limited to vehicle exhaust from residents’ trips, typical of six single-family homes. There will be no industrial or commercial air emissions. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. 4 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-Air Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 6 (WAC 197-11-960) No. The site is located in a residential neighborhood of Renton. There are no industrial facilities, landfills, or other notable off-site sources of emissions or odors in the immediate area that would affect the proposal. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Dust control during construction by watering exposed soils, covering stockpiles, and limiting the disturbed area at any one time. Equipment maintenance to minimize exhaust emissions. Stabilized construction entrances to prevent track-out of soil onto public roads. Compliance with the Puget Sound Clean Air Agency (PSCAA) standards. Landscaping with trees and shrubs will provide some long-term air quality benefits by absorbing CO₂ and particulates. 3. Water Find help answering water questions5 a. Surface: Find help answering surface water questions6 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. Wetland A: 522 sf (Category IV). Wetland B: 469 sf (Category IV). Both proposed to be filled and mitigated 25103 Ultima CAR May 2025 5 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water 6 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water/Environmental- elements-Surface-water Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 7 (WAC 197-11-960) 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. Yes. The project site contains two small Category IV wetlands (522 square feet and 469 square feet) that are located within the plat boundary. Both wetlands are proposed to be filled to accommodate roadway and lot development. Although small, these wetlands are waters of the State, and therefore the work will occur adjacent to and within 200 feet of them. No streams, lakes, or marine waters are present on or adjacent to the property. Mitigation for wetland impacts will be provided through purchase of credits from an approved wetland mitigation bank (Renton Mitigation Bank or King County Mitigation Reserve Program), consistent with City of Renton requirements. Civil plans and the Critical Areas Report (Sewall Wetland Consulting, May 2025) are attached to document existing conditions, proposed impacts, and mitigation. 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. Wetland area affected: Two onsite Category IV wetlands totaling ~991 sq ft (Wetland A: 522 sq ft; Wetland B: 469 sq ft) are proposed to be filled to construct the plat roadway and lots. (25103 Ultima CAR May 2025) Fill vs. dredge: Fill only; no dredging is proposed. Estimated fill volume: Based on filling the wetland footprints to finished subgrade. Using an assumed average fill depth of ~1.5 feet over 991 sq ft, the estimated volume is ~55 cubic yards (calc: 991 sf × 1.5 ft ÷ 27 = 55 cy). To reflect grading variability, a reasonable range is ~40–75 cy assuming 1.0–2.0 feet of average fill depth. Final quantities will be confirmed in contractor takeoffs and civil grading calculations. Source of fill: Clean structural fill/borrow and crushed rock from a licensed commercial pit meeting City of Renton/WSDOT specifications; onsite soils may be reused where suitable per the civil plans and CSWPPP. 4. Will the proposal require surface water withdrawals or diversions? Give a general description, purpose, and approximate quantities if known. No. The project will not require any surface water withdrawals or diversions. There are no streams, lakes, or surface water features on or adjacent to the site that would be altered. The only surface waters present are two small Category IV wetlands (~991 square feet total), which are proposed to be filled and mitigated through purchase of wetland mitigation bank credits. Stormwater generated from impervious surfaces (roofs, driveways, and roadway) will be collected and managed on-site through a new underground detention vault and conveyance system per City Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 8 (WAC 197-11-960) of Renton standards. This is a closed stormwater management system and does not involve withdrawal or diversion of natural surface waters. 5. Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. Site not in 100-year floodplain. 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. The proposal does not involve any discharges of waste materials to surface waters. The two small onsite wetlands will be filled and mitigated, and there are no streams, lakes, or rivers on or adjacent to the site. During construction, temporary stormwater runoff may contain minor amounts of sediment; this will be managed through best management practices (silt fencing, inlet protection, and stabilized construction entrances) under a Construction Stormwater Pollution Prevention Plan (SWPPP). After construction, stormwater from impervious surfaces will be collected and conveyed to an underground detention vault and discharged to the City storm system in compliance with City of Renton and Washington State Department of Ecology standards. No direct discharge of waste or pollutants to surface waters will occur. b. Ground: Find help answering ground water questions7 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 a general description, purpose, and approximate quantities if known. No. The project will not withdraw groundwater from a well. Domestic water service will be provided by the City of Renton public water system. The proposal does not involve construction of a private well. 2. Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (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. No waste materials will be discharged to the ground. The project will be served by the City of Renton sanitary sewer system, which will connect each of the six new single-family lots to the municipal collection system. No septic tanks or on- site sewage systems are proposed. c. Water Runoff (including stormwater): 7 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water/Environmental- elements-Groundwater Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 9 (WAC 197-11-960) 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. Runoff will come from roofs, driveways, sidewalks, and roadways created by the six- lot subdivision. This stormwater will be collected in a conveyance system of catch basins and pipes, routed to a new underground detention vault (per civil plans), and discharged to the City of Renton storm drainage system in compliance with City standards. 2. Could waste materials enter ground or surface waters? If so, generally describe. No. The project is not designed to discharge waste materials to ground or surface waters. During construction, small amounts of sediment could enter runoff if unmanaged; however, the SWPPP (Stormwater Pollution Prevention Plan) includes BMPs such as silt fences, inlet protection, stabilized construction entrances, and stockpile covering to prevent this. After construction, runoff will be treated through approved water quality facilities before being discharged to the City storm system. 3. Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, describe. No,The project will formalize drainage patterns by collecting and routing runoff through the proposed storm drainage system to the detention vault. This will change the flow path but will not increase runoff beyond pre-development conditions, as the system is designed to meet City of Renton flow control standards. d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage pattern impacts, if any: Installation of an underground detention vault with water quality treatment to meet City and Ecology requirements. Implementation of flow control BMPs to limit peak discharges to pre-development levels. Use of roof infiltration trenches or dispersion trenches where feasible for lot-level stormwater. Construction BMPs (silt fence, inlet protection, covering of exposed soils, stabilized entrances) to prevent sediment transport. 4. Plants Find help answering plants questions a. Check the types of vegetation found on the site: Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 10 (WAC 197-11-960) ☐ deciduous tree: alder, maple, aspen, other ☐ evergreen tree: fir, cedar, pine, other ☐ shrubs ☐ grass ☐ 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 Bigleaf maple, alder, cottonwood, bitter cherry, Himalayan blackberry, sword fern, pasture grasses b. What kind and amount of vegetation will be removed or altered? The site is a mix of pasture, disturbed areas, and second-growth forest. Vegetation includes bigleaf maple, alder, cottonwood, bitter cherry, sword fern, grasses, and invasive Himalayan blackberry and Scotch broom For development of six single-family lots and roadway extension, most of the existing vegetation will be cleared or altered, including pasture grasses and invasive species, as well as scattered native trees and shrubs. Tree retention is planned where feasible in designated tracts as per site plan meeting the standard of the city, and landscaping with native and ornamental species will be installed as part of the subdivision improvements. c. List threatened and endangered species known to be on or near the site. No threatened or endangered plant species are documented on the site or in the immediate vicinity. A review of Washington Department of Fish and Wildlife (WDFW) Priority Habitats and Species (PHS) mapping and the site-specific Critical Areas Report found no listed species or priority habitats within or adjacent to the project area d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any. Landscaping with native vegetation; off-site wetland mitigation via bank. e. List all noxious weeds and invasive species known to be on or near the site. Himalayan blackberry and Scotch broom present. Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 11 (WAC 197-11-960) 5. Animals Find help answering animal questions8 a. List any birds and other animals that have been observed on or near the site or are known to be on or near the site. Examples include: • Birds: hawk, heron, eagle, songbirds, other: Common suburban and forest-edge species such as robins, sparrows, chickadees, crows, and seasonal songbirds. • Mammals: deer, bear, elk, beaver, other: Small mammals typical of suburban areas, such as squirrels, raccoons, and rodents. No large mammals (deer, elk, bear) have been observed. • Fish: bass, salmon, trout, herring, shellfish, other: None b. List any threatened and endangered species known to be on or near the site. No threatened or endangered wildlife species are known or documented on or near the site. Review of WDFW Priority Habitats and Species mapping and the CAR found no listed species or priority habitats in or near the project area c. Is the site part of a migration route? If so, explain. The site is within the Pacific Flyway, a broad regional migration corridor used by many bird species. However, the site itself is small, disturbed, and surrounded by residential development. It does not provide unique stopover or staging habitat for migratory birds beyond typical suburban vegetation use. d. Proposed measures to preserve or enhance wildlife, if any. Impacts to wetlands will be mitigated through purchase of credits from an approved wetland mitigation bank, which provides habitat functions off-site. Tree retention is planned within a designated tract, maintaining some canopy and habitat value. Landscaping will include native plants, which provide food and cover for birds and pollinators. Construction will comply with standard BMPs to avoid attracting or harming wildlife during development. 8 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-5-Animals Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 12 (WAC 197-11-960) e. List any invasive animal species known to be on or near the site. No invasive animal species are known or documented on the site. 6. Energy and natural resources Find help answering energy and natural resource questions9 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. The completed homes will use electricity and natural gas provided by local utilities (likely Puget Sound Energy). These will supply heating, cooling, lighting, appliances, and hot water. There will be no industrial or manufacturing energy uses. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. The proposed homes will be similar in height and scale to existing nearby single- family residences. They will not cast significant new shading on adjacent properties that would restrict the potential use of solar energy. 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. Homes will be constructed to meet or exceed the Washington State Energy Code, which requires insulation, high-efficiency windows, and energy-efficient heating and cooling systems. Use of high-efficiency appliances and lighting (LEDs). Landscaping will incorporate tree planting, which can provide passive cooling benefits and reduce energy demand. Compliance with current City of Renton building code standards ensures minimized long-term energy impacts. 7. Environmental health Health Find help with answering environmental health questions10 a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur because of this proposal? If so, describe. 9 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-6-Energy-natural-resou 10 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-7-Environmental-health Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 13 (WAC 197-11-960) No significant environmental health hazards are anticipated. The project is a residential short plat and does not involve industrial or hazardous land uses. 1. Describe any known or possible contamination at the site from present or past uses. There is no known contamination on the site. The parcel is currently undeveloped, with a mix of forest and pasture. 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. No hazardous liquid or gas transmission pipelines are located on or adjacent to the site. 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 construction, small quantities of typical materials (fuels, lubricants, concrete, adhesives, paints) may be stored and used by contractors. These materials will be handled in accordance with local, state, and federal regulations. After construction, no hazardous chemicals will be stored or used beyond typical residential household products. 4. Describe special emergency services that might be required. No special emergency services are anticipated. Standard police, fire, and medical emergency services provided by the City of Renton will be sufficient. Fire access has been incorporated into the site design to meet City code. 5. Proposed measures to reduce or control environmental health hazards, if any. Contractor compliance with City of Renton construction permit conditions and best management practices for handling fuels and chemicals. Storage of construction materials in secured areas with spill prevention measures. Immediate cleanup of any spills if they occur. Compliance with fire and building codes for construction and finished homes, reducing risks of fire or hazardous conditions. b. Noise 1. What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 14 (WAC 197-11-960) The site is located in a developed residential neighborhood in Renton. Existing noise sources include local traffic on NE 8th Street/SE 120th Street and Pasco Place SE, as well as typical residential neighborhood sounds (landscaping equipment, household activities). No significant industrial or commercial noise sources are nearby. 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)? Short-term: Construction noise (heavy equipment, trucks, grading, building activity) will occur during site development. This will be temporary and will occur during permitted construction hours, typically 8:00 a.m. to 5:00 p.m. on weekdays and Saturdays per City of Renton code. Long-term: Once completed, noise levels will be similar to surrounding residential development. The primary sources will be residential activities (vehicles, landscaping, household noise), comparable to existing neighborhood conditions. Traffic from six new homes (~60 average daily trips) will not significantly increase area noise levels. 3. Proposed measures to reduce or control noise impacts, if any: Compliance with City of Renton noise ordinance and restricted construction hours. Use of well-maintained equipment with proper mufflers during construction. Limiting idling of construction vehicles. No long-term noise mitigation is required, as the completed subdivision will be consistent with existing neighborhood noise levels. 8. Land and shoreline use Find help answering land and shoreline use questions11 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. The project site is currently vacant land consisting of pasture, second-growth forest, and disturbed areas. Adjacent properties are developed with single-family residential homes to the north, south, and west, with neighborhood streets providing access. The proposal to subdivide the property into six single-family residential lots is consistent with surrounding land uses and zoning. The project will not adversely affect current land uses on adjacent properties. 11 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-8-Land-shoreline-use Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 15 (WAC 197-11-960) 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 because 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 nonforest use? The project site has not been designated as working farmland or working forest land. 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. The project site is located in an established residential neighborhood in Renton. Surrounding properties are developed with single-family homes and urban infrastructure. c. Describe any structures on the site. There are currently no permanent structures on the site. The property is vacant land with pasture, second-growth trees, and disturbed areas. d. Will any structures be demolished? If so, what? No. Since there are no existing structures, no demolition is required. e. What is the current zoning classification of the site? The property is zoned Residential – R-4 (four dwelling units per acre) under the City of Renton Zoning Code f. What is the current comprehensive plan designation of the site? The site is designated Residential Low Density in the City of Renton Comprehensive Plan, consistent with the R-4 zoning district. g. If applicable, what is the current shoreline master program designation of the site? Not applicable. The site is not within 200 feet of a shoreline of the state and is not designated under the City of Renton Shoreline Master Program. h. Has any part of the site been classified as a critical area by the city or county? If so, specify. Yes. The site contains two Category IV wetlands (522 square feet and 469 square feet), classified as critical areas under the City of Renton Critical Areas Ordinance. These wetlands will be filled for development and mitigation credits purchased from an approved wetland mitigation bank i. Approximately how many people would reside or work in the completed project? The project proposes six single-family residential lots. Assuming an average household size of 2.5–3.0 persons, approximately 15–18 residents would live in the completed project. No commercial or employment uses are proposed. Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 16 (WAC 197-11-960) j. Approximately how many people would the completed project displace? None. The site is currently vacant, so no residents or workers will be displaced. k. Proposed measures to avoid or reduce displacement impacts, if any. Not applicable. No displacement will occur. l. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any. The subdivision is consistent with the City of Renton Comprehensive Plan and R-4 zoning designation, which anticipates single-family residential development at this density. The project will provide infrastructure (roads, sidewalks, utilities, stormwater) consistent with City standards, ensuring compatibility with surrounding residential neighborhoods. Landscaping and tree retention are included to soften visual transitions and integrate the site into the existing neighborhood. m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term commercial significance, if any: Not applicable. The site is not designated as agricultural or forest land of long-term commercial significance, and no such lands are adjacent to the site. 9. Housing Find help answering housing questions12 a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. The proposal will create six single-family residential units. These will be market-rate homes, anticipated to serve the middle-income range, depending on final home design and pricing. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. None. The property is currently vacant and does not contain any existing housing units, so no units will be eliminated. c. Proposed measures to reduce or control housing impacts, if any: No adverse housing impacts are anticipated. Instead, the project will increase the local housing supply consistent with the City of Renton Comprehensive Plan and zoning (R-4). No mitigation is necessary. 12 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-9-Housing Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 17 (WAC 197-11-960) 10. Aesthetics Find help answering aesthetics questions13 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 height of proposed single-family homes will be approximately 30–35 feet, consistent with the City of Renton zoning limit of three stories in the R-4 district. Principal exterior building materials will likely include wood or fiber cement siding, stone or brick accents, asphalt composition roofing, and standard residential windows and doors. Final finishes will be selected by individual builders but will be typical of single-family residences in the area. b. What views in the immediate vicinity would be altered or obstructed? The project will replace open, vacant land with single-family homes. This will alter views across the site from neighboring properties and along NE 8th Street/SE 120th Street and Pasco Place SE. However, the scale and character of the homes will be consistent with adjacent single-family neighborhoods, and no significant regional views, public viewpoints, or designated scenic resources will be obstructed. c. Proposed measures to reduce or control aesthetic impacts, if any: Tree retention tracts and landscaping will soften the visual transition between new homes and surrounding properties. Homes will be built in compliance with City of Renton residential design standards. Use of high-quality exterior materials and landscaping will ensure the project visually integrates into the neighborhood. Street frontage improvements (sidewalks, curbs, street trees) will enhance the streetscape. 11. Light and glare Find help answering light and glare questions14 a. What type of light or glare will the proposal produce? What time of day would it mainly occur? 13 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-10-Aesthetics 14 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-11-Light-glare Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 18 (WAC 197-11-960) The proposal will produce typical residential lighting, including exterior house lights, driveway and garage lighting, and street lighting required by the City of Renton. These sources will operate mainly during the evening and nighttime hours. b. Could light or glare from the finished project be a safety hazard or interfere with views? No. Light from the project will be similar to that of surrounding residential neighborhoods. It will not create glare that poses a safety hazard or significantly interfere with views. c. What existing off-site sources of light or glare may affect your proposal? Existing sources of light include streetlights, vehicle headlights, and residential lighting from adjacent homes. These are typical for an urban residential area and do not pose an unusual impact on the project site. d. Proposed measures to reduce or control light and glare impacts, if any: Exterior lighting for homes and streets will be down-shielded and directed to minimize spillover onto adjacent properties. Street lighting will comply with City of Renton standards, using fixtures designed to reduce glare and light trespass. Residential lighting will be typical of single-family neighborhoods and will not create unusual glare. Landscaping, tree retention, and fencing will help screen and soften any potential light sources. 12. Recreation Find help answering recreation questions a. What designated and informal recreational opportunities are in the immediate vicinity? The site is located in a residential neighborhood of Renton. Nearby recreational opportunities include City of Renton parks, playgrounds, and trails. Informal recreation such as walking, biking, and neighborhood play also occurs on local streets and open spaces. Within a short distance are public parks such as Highlands Park and other community facilities that provide active and passive recreation opportunities. b. Would the proposed project displace any existing recreational uses? If so, describe. Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 19 (WAC 197-11-960) No. The site is currently vacant land with pasture and second-growth vegetation. It is not formally designated or used for recreation. Therefore, no recreational uses will be displaced. 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 not reduce recreational opportunities. Instead, it will include sidewalks, landscaped open areas, and tree retention tracts that support neighborhood walking and play. Residents of the subdivision will also have access to existing City parks and recreational facilities. No mitigation measures are required. 13. Historic and cultural preservation Find help answering historic and cultural preservation questions15 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. No. The project site is currently vacant and contains no buildings or structures. There are no structures on or immediately adjacent to the site that are listed in, or appear eligible for, national, state, or local historic preservation registers. 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. No such features or evidence have been identified on the site. The site has historically been used as pasture and vacant land. No known archaeological sites, cemeteries, or areas of cultural importance have been documented within or adjacent to the project area. A Critical Areas Report and site investigations did not reveal any cultural resources. 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. Assessment included review of City of Renton records, Washington Department of Archaeology and Historic Preservation (DAHP) databases, and site inspections conducted as part of environmental and critical area studies. No resources were 15 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-13-Historic-cultural-p Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 20 (WAC 197-11-960) identified. If required by the City, consultation with DAHP and affected tribes would be conducted during permitting. 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. If any archaeological materials or human remains are discovered during construction, work will be halted immediately, and the City of Renton, DAHP, and affected tribes will be notified as required by law. Construction contracts will include inadvertent discovery protocols to ensure compliance with RCW 27.53 (Archaeological Sites and Resources) and RCW 27.44 (Indian Graves and Records). No impacts are anticipated; therefore, no additional mitigation measures are proposed at this time. 14. Transportation Find help with answering transportation questions16 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 located on the south side of NE 8th Street/SE 120th Street. Primary access will be provided by extending Pasco Place SE into the site as a local residential street. The subdivision road and private tracts will connect to the existing City street network. 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? The site is not directly served by public transit. The nearest King County Metro bus stop is located along Sunset Blvd NE/NE 3rd St, approximately 0.5–1 mile from the site. c. 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). Yes. The project will require construction of an extension of Pasco Place SE (public right- of-way) into the site, as well as frontage improvements along NE 8th Street, including curb, gutter, and sidewalk. A private tract will provide ingress/egress, drainage, and utility access to serve multiple lots.. d. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. 16 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-14-Transportation Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 21 (WAC 197-11-960) No. The project is a small residential subdivision and will not use or be affected by water, rail, or air transportation. e. 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 nonpassenger vehicles). What data or transportation models were used to make these estimates? The project will generate an estimated ~60 average daily trips (ADT) based on the Institute of Transportation Engineers (ITE) Trip Generation Manual (approximately 10 trips per single-family home). Peak-hour trips will occur during morning and evening commuting periods. f. 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. No. The project is located in an established residential neighborhood of Renton and is surrounded by urban development. The streets serving the site (NE 8th Street/SE 120th Street and Pasco Place SE) are local residential streets and are not used for the movement of agricultural or forest products. The proposal will not interfere with or be affected by such activities. g. Proposed measures to reduce or control transportation impacts, if any: Construction of roadway improvements (Pasco Place SE extension and frontage improvements) per City of Renton standards. Compliance with City transportation impact fees to offset traffic-related impacts. Provision of sidewalks and pedestrian connections to enhance non-vehicular access. Driveway placement and sight distance reviewed at building permit stage to ensure safe access. 15. Public services Find help answering public service questions17 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. Yes. The addition of six new single-family homes will result in a minor increase in demand for public services, including: 17 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist- guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-15-public-services Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 22 (WAC 197-11-960) Fire protection and emergency medical services from the Renton Regional Fire Authority. Police services from the City of Renton Police Department. Public schools in the Renton School District, with a small number of new students expected. Public transit demand may increase slightly, but the project’s scale will not significantly affect existing transit capacity. Health care and other city services may see minimal additional use consistent with a small residential development. Overall, the increase will be incremental and consistent with the City’s planning for residential growth in this area. b. Proposed measures to reduce or control direct impacts on public services, if any. The project will pay all required City impact fees, including transportation, fire, and school impact fees, which help offset the cost of increased public service demand. Homes will be constructed in compliance with the City of Renton Building and Fire Codes, ensuring adequate fire access and hydrant coverage. No additional mitigation is necessary because the project is consistent with the Comprehensive Plan and anticipated growth for the R-4 zoning district. 16. Utilities Find help answering utilities questions18 a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other: Electricity, natural gas, water, refuse service, telephone, sanitary sewer. (Septic system is not available; the site will connect to City sewer.) 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. Electricity & Natural Gas: Provided by Puget Sound Energy (PSE). New underground connections will be extended into the site to serve each lot. 18 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist- guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-16-utilities Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 23 (WAC 197-11-960) Water: Provided by the City of Renton municipal water system. Water mains will be extended and individual service lines will connect to each lot. Sanitary Sewer: Provided by the City of Renton sanitary sewer system. New sewer mains and laterals will be constructed within the subdivision road and tracts to serve all six homes. Stormwater: Onsite collection system and underground detention vault discharging to the City storm system. Refuse & Recycling: Service provided by City-authorized waste hauler. Curbside collection will be available to each lot. Telephone/Internet/Cable: Private utility providers will extend service to each lot through joint utility trenches. Signature Find help about who should sign19 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. X Type name of signee: Position and agency/organization: Date submitted: Supplemental sheet for nonproject actions Find help for the nonproject actions worksheet20 Do not use this section for project actions. Because these questions are very general, it may be helpful to read them in conjunction with the list of the elements of the environment. 19 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist- guidance/SEPA-Checklist-Section-C-Signature 20 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist- guidance/sepa-checklist-section-d-non-project-actions Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 24 (WAC 197-11-960) When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms. 1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? • Proposed measures to avoid or reduce such increases are: 2. How would the proposal be likely to affect plants, animals, fish, or marine life? • Proposed measures to protect or conserve plants, animals, fish, or marine life are: 3. How would the proposal be likely to deplete energy or natural resources? • Proposed measures to protect or conserve energy and natural resources are: 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection, such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, floodplains, or prime farmlands? • Proposed measures to protect such resources or to avoid or reduce impacts are: 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans? • Proposed measures to avoid or reduce shoreline and land use impacts are: 6. How would the proposal be likely to increase demands on transportation or public services and utilities? • Proposed measures to reduce or respond to such demand(s) are: Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41 SEPA Environmental checklist September 2023 Page 25 (WAC 197-11-960) 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. Docusign Envelope ID: 6A37E369-83A5-4681-BBCF-E252AC941B41