Drinking Water Systems in USK, Washington
1 water system are reported for this city, with a combined service population of 75. The systems have 6 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving USK
EPA Contaminant Categories in Historical Violation Records
Arsenic14 records
Nitrate4 records
Total Trihalomethanes (TTHMs)2 records
Haloacetic Acids (HAA5)2 records
Consumer Confidence Rule1 record
Diquat1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.