Drinking Water Systems in SANTA ROSA, California
39 water systems are reported for this city, with a combined service population of 186,019. The systems have 1 EPA violation record in the five-year period ending June 30, 2026.
Water Systems Serving SANTA ROSA
BLUE LAKES VILLAGE
65 served22 historical records
A
NORTH STAR MOBILE HOME PARK
221 served7 historical records
A
LOCH HAVEN MUTUAL WATER COMPANY
26 served29 historical records
A
SONOMA MOUNTAIN COUNTY WATER DISTRICT
181 served5 historical records
A
SUNSET PARK COMMUNITY
141 served1 historical record
A
WILLOWSIDE MUTUAL WATER COMPANY
448 served7 historical records
A
MELITA HEIGHTS MUTUAL WATER COMPANY
64 served11 historical records
A
MOBILE HOME ESTATES
210 served12 historical records
A
LEISURE MOBILE HOME PARK
410 served6 historical records
A
DELORES LANE WATER SYSTEM
59 served0 historical records
A
CANON MANOR WATER SYSTEM
805 served1 historical record
A
KENWOOD VILLAGE WATER COMPANY (PUC)
1,029 served2 historical records
A
PENNGROVE WATER COMPANY (PUC)
1,742 served3 historical records
A
JAMES COURT WATER SYSTEM
208 served0 historical records
A
SONOMA COUNTY CSA 41-FREESTONE
290 served18 historical records
A
SONOMA COUNTY CSA 41-SALMON CREEK
427 served9 historical records
A
SONOMA COUNTY CSA 41-JENNER
406 served28 historical records
A
MARK WEST ACRES MWC
61 served10 historical records
A
WEST WATER COMPANY (PUC)
40 served9 historical records
A
SONOMA COUNTY CSA 41-FITCH MOUNTAIN
1,265 served0 historical records
A
INDIAN CREEK TRAILER PARK
43 served2 historical records
A
RANDAL'S RANCHETTE MUTUAL WATER COMPANY
200 served8 historical records
A
CRYSTALS
40 served0 historical records
A
CORBY AVENUE APARTMENTS
38 served7 historical records
A
MARK WEST MEADOWS MUTUAL WATER
20 served3 historical records
A
WILSHIRE HEIGHTS MUTUAL WATER COMPANY
70 served6 historical records
A
SUMMIT VIEW RANCH MUTUAL WATER CO.
45 served0 historical records
A
SANTA ROSA, CITY OF
175,396 served1 historical record
A
PARK ROYAL MUTUAL WATER COMPANY
75 served6 historical records
A
BRANGER MUTUAL WATER COMPANY, INC.
300 served8 historical records
A
SONOMA COUNTY WATER AGENCY
0 served0 historical records
A
YULUPA MUTUAL WATER COMPANY
200 served7 historical records
A
BENNETT RIDGE MUTUAL WATER COMPANY
439 served5 historical records
A
CASPAR SOUTH SERVICE COMPANY
188 served3 historical records
A
HOLLAND HEIGHTS MUTUAL WATER COMPANY
300 served9 historical records
A
ATHENA TERRACE MUTUAL WATER COMPANY
50 served11 historical records
A
SHAMROCK MOBILE HOME PARK
188 served16 historical records1 recent
B
END-O-VALLEY MUTUAL WATER COMPANY
129 served4 historical records
A
EL PORTAL MOBILE ESTATES
200 served6 historical records
A
EPA Contaminant Categories in Historical Violation Records
Gross Alpha48 records
Arsenic29 records
Coliform (TCR)12 records
Haloacetic Acids (HAA5)10 records
Total Trihalomethanes (TTHMs)6 records
Lead and Copper Rule4 records
Nitrate2 records
Atrazine2 records
Surface Water Treatment Rule2 records
Nitrite1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.