Drinking Water Systems in Pasco, Washington

23 water systems are reported for this city, with a combined service population of 119,125. The systems have 212 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving Pasco

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)123 records
Nitrate99 records
Benzene45 records
1,2,4-Trichlorobenzene36 records
o-Dichlorobenzene36 records
Tetrachloroethylene (PCE)36 records
Vinyl chloride36 records
trans-1,2-Dichloroethylene36 records
1,2-Dichloroethane36 records
1,1,1-Trichloroethane36 records

Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.