NOTICE OF APPLICATION/SEPA DETERMINATION (Optional DNS Process) Si necesita ayuda para entender este aviso o necesita más información, por favor llame al Departamento de Desarrollo Comunitario y Económico de la Ciudad de Pasco a 509-545-3441. SEPA Comment Period Deadlines: June 10, 2026 Proposal: On May 13, 2026, Peter Harpster, on behalf of Rocky Hills Management LP, submitted a SEPA Checklist (SEPA2025-030) and Preliminary Plat application (PP2025-004) for a proposed 693-lot single-family detached residential subdivision within the R-1 (Low-Density Residential) zoning district. The approximately 156-acre project site is comprised of 12 parcels that were recently established through a land division process involving parcels five acres or greater in size. The proposed development includes construction of single-family detached homes in ten phases. Associated subdivision improvements include mass grading, construction of public roads, and installation of water, sewer, irrigation, communication, and power infrastructure. The proposal also includes two public pedestrian/mixed-use pathways intended to improve neighborhood connectivity, a 2.25-acre park to be maintained by the Homeowners Association (HOA), a tract for a sewer lift station, and open space areas containing an underlying USBR irrigation easement right-of-way. The site was formerly identified as Parcel No. 115180030 and is now identified as Parcel Nos. 115180033, 115180211, 115180212, 115180213, 115180214, 115180215, 115180216, 115180217, 115180218, 115180219, 115180220, and 115180221, located in Pasco, Washington (99301), generally north of Burns Road, west of Broadmoor Boulevard, south of future Dent Road, and east of future Dent/Fraser Road. The proposal is subject to the applicable provisions of the Pasco Municipal Code. Public Comment Period: Written comments must be submitted to the Community Development Department by 5:00 p.m. on June 10, 2026. Only comments received by the referenced date will be included in the SEPA record. If you have questions on the proposal, contact the Planning Division at (509) 544-4146 or via e-mail to: barragani@pasco-wa.gov. Open Record Hearing: No public hearing is required for the SEPA. The SEPA determination will be established administratively by the Pasco SEPA Administrator. An open record hearing with the Hearing Examiner for the plat will be conducted at a later undetermined date. Determination of Completeness: The application has been declared complete for the purpose of processing. Environmental Documents and/or Studies Applicable to this Application: Environmental Determination No. SEPA2025-030 has been assigned to this proposal. The SEPA comment period will end June 10, 2026. It is probable that a Determination of Non-Significance or Mitigated Determination of Non-Significance will be issued for this proposal (WAC 197.11.355 optional DNS process). This may be the only opportunity to comment on the environmental impacts of this proposal or to appeal any State Environmental Policy Act related decisions. Preliminary Determination of Regulations Used for Project Mitigation: To evaluate the impacts of the proposed project, the following may be used for mitigation, consistency, and the development of findings and conclusions: Title 12 (Streets and Sidewalks), Title 16 (Buildings and Construction), Title 21 (Subdivision), Title 25 (Zoning), Title 28 (Critical Areas) regulations of the Pasco Municipal Code, and the land use policies contained in the Pasco Comprehensive Plan; Regulations of the Washington State Department of Fish and Wildlife, Washington State Department of Ecology, Washington State Department of Natural Resources and Washington State Department of Archaeology and Historic Preservation; Other required agency evaluations, approvals, permits, and mitigations as necessary. Estimated Date of the Decision: A DNS or MDNS threshold determination is anticipated to be issued following the close of the comment period on June 10, 2026. To receive notification of the subsequent threshold determination and any other information concerning this action, contact the Pasco Planning Division at barragani@pasco-wa.gov or at the address and telephone number listed below. Phone: 509-544-4146 Appeals: You may appeal the subsequent threshold determination by submitting a written appeal to one of the following addresses: Email: barragani@pasco-wa.gov Physical Address: City of Pasco – Community & Economic Development Department 525 N. 3rd Avenue, First Floor Pasco, WA 99301 Mailing Address: 525 N 3rd Ave Pasco, WA 99301 Appeals must be submitted within 14 days of issuance of the threshold determination. The appeal must be in writing, include a concise statement identifying the matter being appealed, and provide the basic rationale for the appeal. A filing fee is required in accordance with the City's Fee Resolution. Please note: Failure to file a timely and complete appeal shall constitute a waiver of all rights to an administrative appeal under City Code. All appeals should be directed to: Haylie Matson, CED Director All comments should be directed to: Ivan Barragan, Planner III Prepared: May 21, 2026 By: Ivan Barragan IPL0343109 May 27 2026