Drinking Water Systems in DEFIANCE, Iowa
1 water system are reported for this city, with a combined service population of 250. The systems have 3 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving DEFIANCE
EPA Contaminant Categories in Historical Violation Records
Consumer Confidence Rule3 records
Di(2-ethylhexyl) adipate2 records
Coliform (TCR)2 records
Atrazine1 record
2,4-D1 record
2,4,5-TP1 record
Simazine1 record
Di(2-ethylhexyl) phthalate1 record
Vinyl Chloride1 record
Trichloroethylene (TCE)1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.