Drinking Water Systems in HILLSDALE, Oklahoma
1 water system are reported for this city, with a combined service population of 110. The systems have 10 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving HILLSDALE
EPA Contaminant Categories in Historical Violation Records
Lead and Copper Rule4 records
Revised Total Coliform Rule3 records
Consumer Confidence Rule3 records
Chlorine3 records
Total Trihalomethanes (TTHMs)1 record
LEAD AND COPPER RULE REVISIONS1 record
Haloacetic Acids (HAA5)1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.