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HomeMy WebLinkAbout2015-0415 Mitigated Determination of Nonsignificance Water Treatment LUP14-012 CITY OF PORT TOWNSEND RESPONSIBLE OFFICIAL'S MITIGATED THRESHOLD DETERMINATION OF NON-SIGNIFICANCE (MDNS) Description of Proposal: Construction of a municipal filtration and chlorination water treatment facility on a 12-acre City-owned site. Approximately 5.2 acres will be cleared for the planned work with approximately 1 acre being converted to impervious surface (building plus asphalt). On-site portions of the completed project include a new 6,600 square foot building together with on-site parking, landscaping, storm drainage, water, sewer and power service. Also planned are the installation of process piping, membrane filtration units, chlorination appurtenances and storage, mechanical screens, pumps, flow meters, electrical systems, and backup power supply. Construction on and off the project site will incorporate approximately 3,000 feet of sewer and water line, City utility communication system upgrades, perimeter fencing of the facility, and underground power extensions. Off-site, the project anticipates the continuation of hard surfaced improvements along the south half of 20'h Street (from Howard Street to the project access road entrance). In addition, gravel construction access improvements are anticipated along Rainer Street (south of the site to its intersection with Discovery Road) and include relocation of the existing multi-modal trail to the eastern side of the City property. Project work within these off-site right-of-way corridors requires review and permitting under the City's critical areas ordinance due to the presence of confirmed wetland buffers within and/or adjacent to them. File Reference: LUP14-012 Proponent: City of Port Townsend, Public Works Department David Peterson, City Engineer 250 Madison St., Ste. 2R Port Townsend, WA 98368 Location/Legal Description:In general, the Drinking Water Treatment Facility building would be located west of Howard Street and south of 20th Street. The City's main water reservoir and stand pipe, addressed as 2011 20th Street, lies immediately west of the Drinking Water Treatment Facility site. The planned off-site improvements are along 20th Street (adjacent to an existing half-section of pavement) and within the Rainer Street right-of-way lying north of Discovery Road. The Jefferson County Assessor's parcel number for the project site is 001-091-001, which is located within Section 9, Township 30N, Range 1 W, W.M. A full legal description for the project site is on file with the City. Lead Agency:City of Port Townsend, Development Services Department The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment, so long as certain mitigation measures are adhered to. 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 in file with the lead agency. This information is available to the public on request. This Threshold MDNS is issued under 197-11-350; the lead agency will not act on this proposal for 15 days from the date below. Comments or a written statement appealing the threshold determination must be filed with the Development Services Department by 4:00 p.m., April 30, 2015. Contact: John McDonagh (360) 344-3070 Development Services Department 250 Madison Street, Suite 3 Port Townsend, WA 98368 Responsible Official: Lance Bailey, AICP DSD Director Date: April 15, 2015 Appeal Deadline: April 30, 2015