Elevated lead level — Definition.

RCW 43.20.265
in effect
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After July 1, 2030, the state board may, by rule, define "elevated lead level" at a concentration of five or fewer parts per billion if scientific evidence supports a lower concentration as having the potential for further reducing the health effects of lead contamination in drinking water. After July 1, 2030, the state board may, by rule, define "elevated lead level" at a concentration of five or fewer parts per billion if scientific evidence supports a lower concentration as having the potential for further reducing the health effects of lead contamination in drinking water.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=43.20&full=trueFetched: 6/29/2026

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