Drinking Water Systems in MODESTO, California
18 water systems are reported for this city, with a combined service population of 248,872. The systems have 3 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving MODESTO
CITY OF MODESTO - SALIDA
14,537 served1 historical record
A
BUENA VISTA MIGRANT CENTER
455 served8 historical records1 recent
B
CITY OF MODESTO - SOUTH TURLOCK
1,099 served0 historical records
A
CITY OF MODESTO - DEL RIO
1,327 served1 historical record
A
CITY OF MODESTO - WALNUT MANOR
175 served0 historical records
A
CITY OF MODESTO - GRAYSON
914 served1 historical record
A
CITY OF MODESTO - NORTH TURLOCK
172 served0 historical records
A
CITY OF MODESTO - CENTRAL TURLOCK
119 served0 historical records
A
MODESTO, CITY OF
218,771 served2 historical records
A
MODESTO IRRIGATION DISTRICT
23 served0 historical records
A
HILLSVIEW HOMES
887 served5 historical records1 recent
B
RIVER ROAD MUTUAL WATER COMPANY
26 served3 historical records
A
CITY OF WATERFORD
8,788 served4 historical records
A
WATERFORD - HICKMAN
597 served0 historical records
A
COUNTRY WESTERN MHRV
55 served14 historical records1 recent
B
RIVERDALE PARK TRACT CSD
610 served5 historical records
A
MORNINGSIDE MOBILEHOME PARK
67 served3 historical records
A
PARK HEIGHTS MUTUAL WATER CO
250 served3 historical records
A
EPA Contaminant Categories in Historical Violation Records
Gross Alpha10 records
Arsenic9 records
Coliform (TCR)6 records
Nitrate3 records
Lead and Copper Rule2 records
Thallium2 records
Uranium2 records
Revised Total Coliform Rule1 record
Cadmium1 record
Haloacetic Acids (HAA5)1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.