City of Tumwater MITIGATED DETERMINATION OF NON-SIGNIFICANCE Velkommen Duplexes Permit No. TUM-25-0431, TUM-25-0645, TUM-25-0897 September 5, 2025 Description of Proposal: Development and construction of seven (7) manufactured home duplexes, with 14 units total on 1.36 acres. Applicant: 7125 Little Rock Tumwater, LLC. 12600 SE 38th Street, STE 103, Bellevue, WA 98006. Location of Proposal: 7125 Littlerock Rd SW. Parcel number: 12704430500. Lead agency: City of Tumwater, Community Development Department. The lead agency for this proposal has determined that, as conditioned, 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). This decision was made after review of a completed environmental checklist and other information on file with the lead-agency. This information is available to the public on request. This MDNS assumes that the applicant will comply with all City ordinances and development standards governing the type of development proposed, including but not limited to, street standards, storm water standards, high groundwater hazard areas ordinance standards, water and sewer utility standards, critical areas ordinance standards, tree protection standards, zoning ordinance standards, land division ordinance standards, building and fire code standards, and level of service standards relating to traffic. These ordinances and standards provide mitigation for adverse environmental impacts of the proposed development. Condition of Approval for mitigating environmental impacts: Findings: 1. The Tumwater Boulevard/I-5 northbound ramps intersection currently operates at LOS F during both peak periods for the northbound left-turn movement. The project is projected to add five (5) trips to this intersection. The City has recently developed a SEPA improvement project for the Tumwater Boulevard/I-5 interchange that include intersection improvements at the northbound I-5 ramps intersection, with a peak hour per trip impact fee of $4,333 or as required in the most up to date fee schedule at the time of building permit for each trip entering the interchange area. Mitigation Measures: 1. Prior to issuance of the Building Permit: i. Construct a roundabout at the northbound Interstate 5 On/Off Ramp and Tumwater Boulevard intersection; or ii. Voluntarily pay a mitigation fee of $4,333 (or as required by the most up to date fee schedule at the time of building permit issuance) per peak trip generated by this project (5) under RCW 82.02.020 to be used as described herein: Tumwater Boulevard/I-5 Interchange: The City's planned transportation improvements at the Tumwater Boulevard/I-5 interchange include converting the interchange to a roundabout diamond interchange by replacing the southbound on/off ramp signal and northbound stop controlled intersections with roundabouts. The project shows 5 trips. This MDNS is issued under WAC 197-11-350; the lead agency will not act on this proposal for 6 days from the date below. Date: September 5, 2025 Responsible Official: Tami Merriman for Brad Medrud Brad Medrud, AICP Community Development Director Contact person: Sam Hunter, Associate Planner 555 Israel Road SW Tumwater, WA 98501 shunter@ci.tumwater.wa.us Appeals of this MDNS must be made to the City of Tumwater Community Development Department, no later than September 11, 2025, by 5:00 p.m. All appeals shall be in writing, be signed by the appellant, be accompanied by a filing fee of $2,000.00 and set forth the specific basis for such appeal, error alleged, and relief requested. IPL0269953 Sep 5 2025