Drinking Water Systems in Winthrop, Washington
2 water systems are reported for this city, with a combined service population of 1,445. The systems have 9 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving Winthrop
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)15 records
Revised Total Coliform Rule6 records
Lead and Copper Rule4 records
Consumer Confidence Rule4 records
Nitrate2 records
Surface Water Treatment Rule1 record
Gross Alpha1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.