Environmental checklist for valve replacement project by Alderwood Water & Wastewater District.

Alderwood Water & Wastewater District W2301D Trans Main 1 & 2 Valve Replacement Project Notice of Determination of Nonsignificance and Environmental Checklist A Determination of Nonsignificance (DNS) and environmental checklist have been prepared for the above-referenced project in compliance with the State Environmental Policy Act (SEPA) under RCW 43.21C. Alderwood Water & Wastewater District (AWWD) is the project proponent and lead agency. DESCRIPTION OF PROPOSAL: Critical valve failures on Alderwood Water & Wastewater Districts (AWWDs) water transmission mains built in the 1960s and 1970s initiated this multi-phase project. Phase D includes work at 9 sites. Each sites project includes excavation (limited to the immediate vicinity of the valve), placement of pipe and appurtenances (and vault, if applicable), revisions to stormwater assets (if applicable), revisions to water distribution mains, backfilling, site restoration, and temporary traffic control. Replacement of 30-inch Water Transmission Valves: Holly Dr & 3rd Ave SE, Valve 977-1 near 8625 3rd Ave SE, Everett, WA 98208 158thSt SW and 35thAve W, Valve 512-13 near3511158thSt SW,Lynnwood, WA 98087 164thSt SW and 36th Ave W, Valve 512-80 near 3609 164thSt SW, Lynnwood, WA 98087 164thSt SW and Cascadian Way, Valve 516-37 near 16329Cascadian Way, Bothell, WA 98012 151stPl SW and35thAve W, Valve 562-05 near 15204 35thAve W, Lynnwood, WA 98087 155th St SEand Cascadian Way, Valve 566-12 near 15503 Cascadian Way, Bothell, WA 98012 146thSt SE and Cascadian Way, Valve 616-15 near 146051stDr SE, Lynnwood, WA 98087 SR 525andBeverly Park Road, Valve 712-6 near 12926 Mukilteo Speedway, Lynnwood, WA 98037 Replacement of 2-inch Air Release Valve: 3rdAveSE and 128thStreet SE(SR 96),ARV 717-002 across from 12806 3rdAve SE, Everett,WA 98208 The DNS and environmental checklist can be reviewed by visiting the Districts website at:  awwd.com/developers-contractors/projects-for-bid/ Comments must be provided on or before March 20, 2026. Any appeal must be filed on or before March 27, 2026. Comment and appeal submittal information is provided in the DNS. Published: March 6, 2026. EDH1027484 ad+#1027484]