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We Want to Hear From You

In 2024, the Department of Health adopted a rule change to WAC 246-290-100, Water system plan that includes a new climate resilience element. The rulemaking was in response to ES2HB 1181 (2023), which added the requirement to state statute (RCW 43.20.310) The new requirement impacts only those Group A community public water systems serving 1,000 or more connections. These water systems will need to include the new climate resilience element in water system plans initiated after June 30, 2025.

Since the adoption of the rule, ODW has been drafting changes to the Water System Planning Guidebook to align with the adopted rule.

Please review the draft changes and provide feedback to us via email to odwpubliccomment@doh.wa.gov by Friday, April 11, 2025.

• Draft new information to be added into the Water System Planning Guidebook.
• Draft new workbook to be included as an appendix for the Water System Planning Guidebook.

If you would like more information about the Water System Planning, visit the Water System Planning Requirements webpage.

Please note that the subject of this email is separate and apart from guidance and requirements relating to:

• The climate change and resiliency element required in the local comprehensive plan under RCW 36.70A.070(9), per the same 2023 legislation (Ch. 228, Laws of 2023).
• Commerce Climate Planning webpage.

Please forward this information to anyone you think may be interested.