EPA public water records · 06097
Sonoma County, California
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 55
- Systems with unresolved health-based records
- 21
- Of those, systems with a formally addressed health-based record
- 6
These counts cover the linked records shown here. A county listing can cover only part of the county or reflect a mailing location.
Find your water system
- ALLIANCE REDWOODS CONFERENCE GROUNDSCA4900943 · California · 4 violation records · 0 unresolved health-based in this snapshot
- AUSTIN ACRES MUTUAL WATER COMPANYCA4900620 · California · 5 violation records · 0 unresolved health-based in this snapshot
- BODEGA WATER COMPANYCA4900850 · California · 1 violation records · 0 unresolved health-based in this snapshot
- BRANGER MUTUAL WATER COMPANY, INC.CA4900545 · California · 3 violation records · 1 unresolved health-based in this snapshot
- BRIDGEHAVEN PARKCA4900644 · California · 4 violation records · 0 unresolved health-based in this snapshot
- CAZADERO WATER COMPANY, INC. (PUC)CA4900508 · California · 26 violation records · 8 unresolved health-based in this snapshot
- CLOVERDALE, CITY OFCA4910002 · California · 1 violation records · 0 unresolved health-based in this snapshot
- COLLEGE PARK MUTUAL WATER COMPANYCA4900667 · California · 2 violation records · 0 unresolved health-based in this snapshot
- DELORES LANE WATER SYSTEMCA4901346 · California · 1 violation records · 0 unresolved health-based in this snapshot
- DIAMOND A MUTUAL WATER COMPANYCA4900562 · California · 2 violation records · 1 unresolved health-based in this snapshot
- EL PORTAL MOBILE ESTATESCA4900799 · California · 2 violation records · 1 unresolved health-based in this snapshot
- END-O-VALLEY MUTUAL WATER COMPANYCA4900547 · California · 1 violation records · 0 unresolved health-based in this snapshot
- FORESTVILLE WATER DISTRICTCA4910019 · California · 2 violation records · 0 unresolved health-based in this snapshot
- GEORGE RANCH MUTUAL WATER COMPANYCA4900973 · California · 2 violation records · 1 unresolved health-based in this snapshot
- GILL CREEK MUTUAL WATER COMPANYCA4900521 · California · 1 violation records · 0 unresolved health-based in this snapshot
- HILTON MUTUAL WATER COMPANYCA4901309 · California · 2 violation records · 0 unresolved health-based in this snapshot
- HUCKLEBERRY MUTUAL WATER COMPANYCA4900634 · California · 2 violation records · 0 unresolved health-based in this snapshot
- JAMES COURT WATER SYSTEMCA4901445 · California · 1 violation records · 1 unresolved health-based in this snapshot
- KELLY MUTUAL WATER COMPANYCA4900560 · California · 2 violation records · 1 unresolved health-based in this snapshot
- LAWNDALE MUTUAL WATER COMPANYCA4900588 · California · 1 violation records · 0 unresolved health-based in this snapshot
- MAGIC MOUNTAIN MUTUAL WATER COMPANYCA4900637 · California · 3 violation records · 0 unresolved health-based in this snapshot
- MARK WEST MEADOWS MUTUAL WATERCA4900905 · California · 2 violation records · 1 unresolved health-based in this snapshot
- MELITA HEIGHTS MUTUAL WATER COMPANYCA4900551 · California · 5 violation records · 0 unresolved health-based in this snapshot
- MICHELE MUTUAL WATER COMPANYCA4900552 · California · 1 violation records · 0 unresolved health-based in this snapshot
- MISSION HIGHLANDS MUTUAL WATER CO.CA4900563 · California · 3 violation records · 0 unresolved health-based in this snapshot
- MOBILE HOME ESTATESCA4900720 · California · 27 violation records · 1 unresolved health-based in this snapshot
- PARK ROYAL MUTUAL WATER COMPANYCA4900553 · California · 2 violation records · 0 unresolved health-based in this snapshot
- PINE HILL TERRACE MOBILE HOME PARKCA4900674 · California · 2 violation records · 0 unresolved health-based in this snapshot
- PLAZA MOBILE HOME PARKCA4900787 · California · 2 violation records · 1 unresolved health-based in this snapshot
- RANDAL'S RANCHETTE MUTUAL WATER COMPANYCA4900599 · California · 6 violation records · 1 unresolved health-based in this snapshot
- REDWOOD HEIGHTS MUTUAL WATER COMPANYCA4900639 · California · 6 violation records · 1 unresolved health-based in this snapshot
- RIEBLI MUTUAL WATER COMPANYCA4900603 · California · 2 violation records · 0 unresolved health-based in this snapshot
- RINCON VALLEY MOBILE ESTATESCA4900600 · California · 2 violation records · 1 unresolved health-based in this snapshot
- RIO LINDO ADVENTIST ACADEMYCA4900577 · California · 2 violation records · 0 unresolved health-based in this snapshot
- ROBIN WAY WATER SYSTEMCA4900913 · California · 5 violation records · 0 unresolved health-based in this snapshot
- ROHNERT PARK, CITY OFCA4910014 · California · 2 violation records · 0 unresolved health-based in this snapshot
- RUSSIAN RIVER MUTUAL WATER CO.CA4900665 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SEA RANCH WATER COMPANY,THE (PUC)CA4910007 · California · 4 violation records · 1 unresolved health-based in this snapshot
- SHAMROCK MOBILE HOME PARKCA4900723 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SIX ACRES WATER COMPANYCA4900608 · California · 9 violation records · 1 unresolved health-based in this snapshot
- SOBRE VISTA WATER COMPANYCA4900901 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SONOMA COUNTY CSA 41-FITCH MOUNTAINCA4910010 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SONOMA COUNTY CSA 41-JENNERCA4900532 · California · 5 violation records · 0 unresolved health-based in this snapshot
- SONOMA MOUNTAIN COUNTY WATER DISTRICTCA4900580 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SONOMA RANCH MUTUAL WATER COMPANYCA4900843 · California · 2 violation records · 1 unresolved health-based in this snapshot
- SONOMA SPRINGSCA4900533 · California · 2 violation records · 0 unresolved health-based in this snapshot
- SONOMA, CITY OFCA4910012 · California · 5 violation records · 0 unresolved health-based in this snapshot
- SOUTH CLOVERDALE WATER COMPANYCA4900510 · California · 3 violation records · 1 unresolved health-based in this snapshot
- SUNSET PARK COMMUNITYCA4900794 · California · 4 violation records · 1 unresolved health-based in this snapshot
- TIMBER COVE COUNTY WATER DISTRICTCA4900584 · California · 2 violation records · 0 unresolved health-based in this snapshot
- U.S. COAST GUARD TRAINING CENTERCA4910701 · California · 2 violation records · 1 unresolved health-based in this snapshot
- VALLEY FORD WATER ASSOCIATIONCA4900568 · California · 33 violation records · 1 unresolved health-based in this snapshot
- VALLEY OF THE MOON WATER DISTRICTCA4910013 · California · 2 violation records · 0 unresolved health-based in this snapshot
- WESTERN MOBILE HOME PARKCA4900791 · California · 2 violation records · 1 unresolved health-based in this snapshot
- WILSHIRE HEIGHTS MUTUAL WATER COMPANYCA4900573 · California · 2 violation records · 0 unresolved health-based in this snapshot
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility