Please see below for a reminder about Lead and Cooper Rule requirements instituted in October 2024. Please pass this information along to your Tribe’s water utility staff, water operators, and anyone else involved in disseminating drinking water public notices.
EPA’s 2021 Lead and Copper Rule Revisions require community and non-transient non-community water systems to issue a Tier 1 public notice to their consumers when there is an exceedance of the lead action level. A lead action level exceedance occurs when the 90th percentile concentration of lead tap water samples collected during any monitoring period is greater than 15 parts per billion (ppb) or 0.015 mg/L.
On October 16, 2024, new requirements began:
- A Tier 1 public notice must be distributed as soon as possible, but no later than 24 hours after the system learns of an exceedance.
- Water systems must also consult with the EPA Region 10 Drinking Water Program and provide a copy of the distributed public notice within 24 hours after learning of the exceedance.
See EPA’s Fact Sheet for more information: EPA Lead Action Level Exceedance Tier 1 Public Notice Fact Sheet. Please email R10TribalDW@epa.gov of you have any questions.
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