Drinking Water Systems in Monroe, Washington

9 water systems are reported for this city, with a combined service population of 27,396. The systems have 19 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving Monroe

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)46 records
Consumer Confidence Rule16 records
Nitrate12 records
Surface Water Treatment Rule7 records
Haloacetic Acids (HAA5)6 records
Total Trihalomethanes (TTHMs)5 records
Chromium5 records
Barium5 records
Fluoride5 records
Cadmium5 records

Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.