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Learn About Lead and Copper Rule Compliance Factsheet

In 1991, the EPA published the Lead and Copper Rule (LCR) which aims to reduce lead and copper in drinking water. The rule applies to about 67,000 water systems which serve over 300 million people.

Since the promulgation of the Lead and Copper Rule, the number of the nation’s largest drinking water systems (i.e. those serving over 50,000) with action level exceedances has decreased by over 90%.

View more drinking water compliance data.

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