(COLUMBIA, MO) ~ The City of Columbia Water & Light has received the results from the second and final round of required lead and copper water sampling for 2023, showing that the City remains in compliance with the Environmental Protection Agency's (EPA) action levels.

The Missouri Department of Natural Resources (MDNR) tested 100 samples from single-family homes or multi-family residences with known lead service lines, lead interior pipes or lead solder that joins copper pipes. In accordance with the Safe Drinking Water Act, 90% of these samples must not exceed the EPA's action level for lead (15 parts per billion). Of these 100 samples, 57 had no detectable lead, 43 had lead detected below the action level and 0 had lead that exceeded the action level.

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The EPA's action level for copper is 1,300 ppb and all 100 Water & Light samples tested below this level. Ninety percent of these samples were at 130 ppb or below.

Water & Light has not seen elevated amounts of lead and copper in testing results from customers' homes because Columbia's water is very stable. Letters have been sent to all participants detailing their analysis results.

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