Map of Engineer
Assignments (PDF 93KB) for all three regions.
Map of Planner
Assignments (PDF 60KB) for all three regions.
List of Engineers and Planners
(PDF 25KB) for all three regions.
After-Hours Emergency Hotline
for water system operators, local health
officials, laboratory operators and others who need immediate
technical, engineering or public health advice from state drinking
water experts during emergencies.
Eastern Regional Office:
Adams, Asotin, Benton, Chelan, Columbia, Douglas,
Franklin, Ferry, Garfield, Grant, Kittitas, Klickitat, Lincoln,
Okanogan, Pend Oreille, Spokane, Stevens, Walla Walla, Whitman and
Yakima Counties.
Northwest Regional Office:
Island, King, Pierce, San Juan, Skagit,
Snohomish and Whatcom Counties.
Southwest Regional Office:
Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Kitsap, Lewis,
Mason, Pacific, Skamania, Thurston, and Wahkiakum Counties