Drinking Water Systems in West Richland, Washington
4 water systems are reported for this city, with a combined service population of 22,104. The systems have 24 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving West Richland
PATERSON HEIGHTS WATER ASSN
85 served64 historical records1 recent
B
Plymouth Water District
288 served219 historical records22 recent
C
WEST RICHLAND CITY OF
21,231 served23 historical records
A
COLUMBIA VIEW WATER SYSTEM
500 served113 historical records1 recent
B
EPA Contaminant Categories in Historical Violation Records
Nitrate84 records
Coliform (TCR)34 records
Consumer Confidence Rule18 records
Fluoride11 records
Pentachlorophenol10 records
Benzene8 records
Dalapon7 records
Dinoseb7 records
Diquat7 records
2,4,5-TP7 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.