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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ST JOSEPH'S CATHOLIC CTR RECTO
CA3400289 · 2 served
ST JOSEPH'S CHURCH
CA5700528 · 500 served
ST JOSEPH'S COLLEGE
CA4300776 · 60 served
ST JOSEPHS HOSPITAL
CA3901082 · 150 served
ST JUDE CATHOLIC CHURCH
CA1000502 · 100 served
ST LUKES CHURCH
CA3900984 · 300 served
ST MARIA GORETTI PARISH (SWS)
CA3400467 · 600 served
ST MARYS HIGH SCHOOL
CA3901209 · 950 served
ST MICHAELS WATER SYSTEM
CA3901422 · 25 served
ST NICHOLAS RANCH & RETREAT
CA1000377 · 123 served
ST PATRICK CATHOLIC CHURCH WTR SYS
CA3901432 · 25 served
ST PATRICK S ST MARY S KITCHEN
CA3400290 · 150 served
ST PATRICKS SEMINARY
CA4100556 · 200 served
ST PATRICKS SEMINARY
CA4100562 · 100 served
ST PETER LUTHERAN CHURCH
CA5000461 · 140 served
ST PHILLIP APOSTLE CHURCH
CA1502250 · 120 served
St Sophia Camp
CA3600592 · 75 served
ST STANISLAUS GOLF
CA5000495 · 25 served
ST. ANDREW PRESBYTERIAN CHURCH
CA5103331 · 100 served
St. Andrews Winery
CA2801044 · 75 served
St. Antony Monastery
CA3601102 · 25 served
ST. CLAIR RANCHOS MUTUAL WATER CO.
CA1500507 · 105 served
ST. CLEMENT VINEYARDS INC.
CA2801045 · 100 served
ST. FRANCIS RETREAT CENTER
CA3500537 · 69 served
ST. HELENA PURLIEU LLC
CA2800741 · 25 served
ST. HELENA, CITY OF
CA2810004 · 5,386 served
St. Mary Magdalene Church CLOSED
CA2400221 · 130 served
ST. PAUL LUTHERAN DAY CARE
CA2400176 · 50 served
ST. PETERS CATHOLIC CEMETERY
CA1000647 · 64 served
ST. SUPERY WINERY
CA2801046 · 40 served
STADIUM CLUB ESTATES
CA3400171 · 310 served
STAFFORD MEAT COMPANY
CA3400456 · 32 served
STAFFORD R V PARK
CA1200675 · 100 served
STAGE STOP STORE & SANDWICH
CA5500207 · 25 served
STAGECOACH INN
CA3301644 · 1,006 served
Stagecoach Inn, Rancho Tehama
CA5200583 · 27 served
STAGECOACH ROAD MUTUAL WATER
CA4400548 · 34 served
STAGECOACH TRAILS RV RESORT
CA3702420 · 600 served
STAGLIN FAMILY VINEYARD
CA2800017 · 25 served
STAGS LEAP WINERY
CA2801086 · 32 served
STAGS LEAP WINE CELLARS
CA2801047 · 40 served
STAGS LEAP WINERY
CA2800659 · 25 served
STALLION OAKS RANCH
CA3701417 · 80 served
STALLION SPRINGS CSD
CA1510025 · 4,910 served
STAN COUNTY HONOR FARM
CA5000167 · 300 served
STAN PLOWMAN
CA5300114 · 50 served
STAN'S YOLO MARINA
CA5700791 · 90 served
STANDARD FEEDING CO
CA3601078 · 25 served
STANDARD OIL CO PIPELINE DEPT
CA3000798 · 25 served
STANDARD PARK WATER SYSTEM
CA5500273 · 50 served