Drinking Water Systems in Black Diamond, Washington
6 water systems are reported for this city, with a combined service population of 7,139. The systems have 2 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving Black Diamond
MARIANI WATER SYSTEM INC
138 served2 historical records1 recent
B
SAWYERWOOD WATER SYSTEM
32 served17 historical records
A
BLACK DIAMOND WATER DEPT
6,407 served162 historical records
A
SOUTH AUBURN WATER ASSOCIATION
212 served102 historical records
A
Creekside Apartments
100 served83 historical records1 recent
B
WESTERN RANCHETTES INC.
250 served68 historical records
A
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)49 records
Consumer Confidence Rule14 records
Benzene13 records
Pentachlorophenol11 records
Nitrate9 records
1,2-Dichloroethane7 records
o-Dichlorobenzene7 records
trans-1,2-Dichloroethylene7 records
1,1,2-Trichloroethane7 records
Tetrachloroethylene7 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.