Drinking Water Systems in COLUMBIA, Pennsylvania
3 water systems are reported for this city, with a combined service population of 29,286. The systems have 14 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving COLUMBIA
EPA Contaminant Categories in Historical Violation Records
Nitrate43 records
Surface Water Treatment Rule12 records
CARBON, TOTAL10 records
Coliform (TCR)9 records
Benzene9 records
Groundwater Rule8 records
Chlorine8 records
Endrin7 records
Consumer Confidence Rule6 records
Methoxychlor6 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.