Drinking Water Systems in SAMMAMISH, Washington
3 water systems are reported for this city, with a combined service population of 89,229. The systems have 5 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving SAMMAMISH
NE SAMMAMISH SEWER & WATER DISTRICT
9,702 served7 historical records1 recent
B
SAMMAMISH PLATEAU WATER & SEWER
79,362 served50 historical records
A
MAYFIELD RV PARK
165 served371 historical records4 recent
C
EPA Contaminant Categories in Historical Violation Records
Pentachlorophenol18 records
Benzene15 records
Coliform (TCR)12 records
Dalapon9 records
Chlordane9 records
Hexachlorocyclopentadiene9 records
Picloram9 records
Methoxychlor9 records
Benzo(a)pyrene9 records
Heptachlor epoxide9 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.