Drinking Water Systems in Vancouver, Washington

12 water systems are reported for this city, with a combined service population of 531,801. The systems have 18 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving Vancouver

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)52 records
Benzene44 records
Pentachlorophenol38 records
Nitrate27 records
1,2,4-Trichlorobenzene25 records
Vinyl Chloride25 records
Trichloroethylene (TCE)25 records
o-Dichlorobenzene25 records
1,1-Dichloroethylene25 records
trans-1,2-Dichloroethylene25 records

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