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.
RCW 43.20.265
Elevated lead level—Definition.
2021 c 154 s 6.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.