Drinking Water Systems in RANCHO SANTA MARGARITA, California
3 water systems are reported for this city, with a combined service population of 207,973. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.
Water Systems Serving RANCHO SANTA MARGARITA
SANTA MARGARITA WATER DISTRICT
168,289 served1 historical record
A
SMWD - SJ GROUND WATER PLANT
0 served6 historical records
A
SANTA MARGARITA WATER DISTRICT-ID9
39,684 served5 historical records1 recent
B
EPA Contaminant Categories in Historical Violation Records
Haloacetic Acids (HAA5)4 records
Total Trihalomethanes (TTHMs)4 records
Coliform (TCR)1 record
Atrazine1 record
Beryllium1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.