Water system plans initiated after June 30, 2025, by water systems serving 1,000 or more connections must include a Climate Resilience Element in their Water System Plans (RCW 43.20.310).

Water system plans initiated after June 30, 2025, by water systems serving 1,000 or more connections must include a Climate Resilience Element in their Water System Plans (RCW 43.20.310).