Clark County adopts amendments to on‑site sewage code to align with new state septic rules
Mar 26, 2025
The Clark County Board of Health on March 26 approved Ordinance 20250312 to update local code 24.17 to match Washington state on‑site septic rules taking effect April 1, 2025. The changes raise minimum lot sizes in some soils, clarify repair and remediation procedures, and add testing requirements for some proprietary treatment components.
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The Clark County Board of Health on March 26 adopted Ordinance 20250312, amending Clark County Code 24.17 (on‑site sewage systems and regulation) to align local rules with updated Washington state on‑site septic regulations that take effect April 1, 2025.
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