Drinking Water Systems in Maple Valley, Washington
6 water systems are reported for this city, with a combined service population of 28,939. The systems have 4 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving Maple Valley
VALLEYBROOK VILLAGE
65 served9 historical records1 recent
B
BILLINGTON
34 served22 historical records1 recent
B
EDGEHILL WATER ASSN
109 served61 historical records2 recent
B
CEDAR RIVER WATER & SEWER DISTRICT
28,671 served0 historical records
A
165th Ave Water System
24 served0 historical records
A
REED RANCH ROAD WATER
36 served97 historical records
A
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)27 records
Lead and Copper Rule9 records
Nitrate7 records
1,2,4-Trichlorobenzene6 records
1,1-Dichloroethylene6 records
Benzene6 records
Styrene6 records
1,2-Dichloropropane6 records
Vinyl Chloride6 records
trans-1,2-Dichloroethylene6 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.