Drinking Water Systems in Mesa, Washington
2 water systems are reported for this city, with a combined service population of 2,235. The systems have 19 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving Mesa
MESA WATER DEPARTMENT
495 served44 historical records1 recent
B
Basin City Water Sewer District
1,740 served43 historical records18 recent
D
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)13 records
Nitrate12 records
Revised Total Coliform Rule10 records
Haloacetic Acids (HAA5)5 records
Total Trihalomethanes (TTHMs)4 records
Lead and Copper Rule3 records
Picloram2 records
2,4,5-TP2 records
Pentachlorophenol2 records
Dalapon2 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.