Utilities in California
18,760 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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MARVIN ROSS, MGR
CA3000842 · 25 served
MARVIN SILVERMAN
CA5500205 · 25 served
MARY ANN THOMAS KUSTKA
CA3700017 · 25 served
MARY IMMACULATE QUEEN SCHOOL
CA1600012 · 280 served
MARY LOU MOBILE HOME PARK
CA1000265 · 68 served
MARY SMITH CAMPGROUND
CA5301109 · 90 served
MARY SMITH CAMPGROUND
CA5300062 · 90 served
MARY THOMAS GUEST RANCH
CA3901079 · 3 served
MARYGOLD MWC
CA3610028 · 3,055 served
MARYKNOLL RESIDENCE
CA4300777 · 40 served
MARYON TOOLE
CA3301240 · 25 served
MARYSVILLE AUTO COURT
CA5800510 · 27 served
MARYSVILLE FLEA MARKET
CA5800923 · 500 served
MARYSVILLE HIGH SCHOOL
CA5800841 · 1,050 served
MARYSVILLE KOREAN METHODIST CHURCH
CA5103306 · 100 served
MARYSVILLE RACEWAY PARK
CA5800914 · 2,000 served
MARYSVILLE UNIFIED SCHOOL DIST
CA5800839 · 50 served
MAS OJIMA
CA5700640 · 120 served
MASON'S MINI MART & DELI
CA4700655 · 30 served
MASONITE CORPORATION
CA2300841 · 275 served
MASS PHEASANT CLUB
CA0706033 · 25 served
MASSA ESTATE VINEYARDS WS (PREV HELLER)
CA2701951 · 30 served
Massack Water Users Assc.
CA3200408 · 15 served
MASSINI MUTUAL WATER COMPANY
CA4900706 · 0 served
MASSONIC HOME
CA0100001 · 0 served
MATAGUAY SCOUT RESERVATION
CA3701965 · 4,000 served
MATANZAS CREEK WINERY
CA4901248 · 139 served
Matarawa RV Park
090605066 · 25 served
MATEO S LABOR CAMP
CA1000504 · 25 served
MATERRA WINERY
CA2800081 · 49 served
MATHER AFB - K9/SAC
CA3410708 · 10 served
MATHER FIELD WATER SYSTEM
CA3410706 · 5,100 served
MATILIJA LAKE PARK
CA5601711 · 10 served
MATILTON FIELD
CA1200568 · 60 served
MATRIX WINERY
CA4901263 · 30 served
MATSUDA'S BY GREEN ACRES, LLC
CA3400453 · 125 served
MATSUI NURSERY
CA2700863 · 45 served
MATSUI NURSERY WS
CA2701931 · 165 served
MATTERHORN INN
CA0900555 · 40 served
MATTHEW S COTTONWOOD CRK BAKER
CA2000734 · 30 served
MATTHEWS CREEK CAMPGROUND
CA4700605 · 70 served
MATTOLE CAMPGROUND BLM
CA1206009 · 75 served
MATTOLE ELEMENTARY SCHOOL
CA1200684 · 50 served
MATTOLE RIVER RESORT
CA1200685 · 24 served
MATTOLE TRIPLE JUNCTION HIGH SCHOOL
CA1206008 · 60 served
MATTS RANCH
CA1907017 · 70 served
MAURITSON FAMILY WINERY
CA4901284 · 40 served
MAURITSON LABOR HOUSE
CA4901453 · 37 served
MAURLAND MANOR WATER SYSTEM
CA3900543 · 92 served
MAVERIK FUELING STATION
CA3301188 · 129 served