EPA public water records · 06109
Tuolumne County, California
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 46
- Systems with unresolved health-based records
- 9
- Of those, systems with a formally addressed health-based record
- 0
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
- 49ER TRAILER RANCHCA5500120 · California · 2 violation records · 0 unresolved health-based in this snapshot
- ALPINE ACRES MUTUAL WATER COCA5500041 · California · 4 violation records · 0 unresolved health-based in this snapshot
- BELLEVIEW OAKS MUTUAL WATER COCA5500042 · California · 1 violation records · 0 unresolved health-based in this snapshot
- BLUEBELL VALLEY MWCCA5500040 · California · 2 violation records · 0 unresolved health-based in this snapshot
- CAL FIRE BASELINE CONSERVATION CAMPCA5510852 · California · 7 violation records · 1 unresolved health-based in this snapshot
- CASCADE ESTATESCA5500104 · California · 1 violation records · 0 unresolved health-based in this snapshot
- COLD SPRINGS WATER COCA5510011 · California · 1 violation records · 0 unresolved health-based in this snapshot
- COLUMBIA MOBILE HOME PARKCA5500149 · California · 2 violation records · 0 unresolved health-based in this snapshot
- DEL ORO WATER COMPANY - STRAWBERRY DIV.CA5510007 · California · 1 violation records · 0 unresolved health-based in this snapshot
- DON PEDRO REC AG:FLEM.MEADOWSCA5500048 · California · 1 violation records · 0 unresolved health-based in this snapshot
- GOLD RUSH MOBILE HOME PARKCA5500128 · California · 1 violation records · 0 unresolved health-based in this snapshot
- GOLDEN SIERRA ESTATES_FKA MOTHER LODECA5500125 · California · 2 violation records · 0 unresolved health-based in this snapshot
- GROVELAND COMMUNITY SERV DISTCA5510009 · California · 5 violation records · 1 unresolved health-based in this snapshot
- LAKE DON PEDRO CSDCA5510008 · California · 4 violation records · 1 unresolved health-based in this snapshot
- LEISURE PINES MUTUAL WATER COCA5500053 · California · 4 violation records · 1 unresolved health-based in this snapshot
- LONG BARN PROPERTY OWNERSCA5500057 · California · 2 violation records · 0 unresolved health-based in this snapshot
- MI WUK VILLAGE MUT WTR COCA5510006 · California · 2 violation records · 0 unresolved health-based in this snapshot
- MONO VISTA RANCH MHPCA5500124 · California · 2 violation records · 0 unresolved health-based in this snapshot
- MULLER MUTUAL WATER COMPANYCA5500064 · California · 1 violation records · 0 unresolved health-based in this snapshot
- PEPPERMINT CREEK MHPCA5500116 · California · 8 violation records · 0 unresolved health-based in this snapshot
- PHOENIX LAKE ESTATES CC MWCCA5510026 · California · 1 violation records · 0 unresolved health-based in this snapshot
- PINECREST PERMITTEES ASSNCA5510004 · California · 3 violation records · 1 unresolved health-based in this snapshot
- PONDEROSA MOBILE HOME PARKCA5500092 · California · 3 violation records · 1 unresolved health-based in this snapshot
- RAMBLING HILLS ESTATESCA5500243 · California · 1 violation records · 0 unresolved health-based in this snapshot
- RAWHIDE MUTUAL WATER COMPANYCA5500071 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SIERRA PARK WATER COMPANY INC.CA5510016 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SIERRA TWAIN HARTE MHPCA5500096 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SIERRA VILLAGE MOBILE HOME PARKCA5500353 · California · 3 violation records · 1 unresolved health-based in this snapshot
- SIERRA VILLAGE MUTUAL WATER COCA5500074 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SLIDE INN SNOWBOWL WATER COCA5500077 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SONORA ESTATES MOBILE HOME PARKCA5500086 · California · 1 violation records · 0 unresolved health-based in this snapshot
- SONORA MEADOWS MUTUAL WTR COCA5510023 · California · 4 violation records · 1 unresolved health-based in this snapshot
- SUGAR PINE RV RESORTCA5500115 · California · 3 violation records · 0 unresolved health-based in this snapshot
- TAMARRON MOBILE HOME PARKCA5500193 · California · 2 violation records · 0 unresolved health-based in this snapshot
- TUD - COLUMBIA WATER SYSTEMCA5510013 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD - PONDEROSACA5510002 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD - SONORA/JAMESTOWN WATER SYSTEMCA5510001 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD - TUOLUMNE WATER SYSTEMCA5510003 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD - UPPER BASIN WATER SYSTEMCA5510012 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD-APPLE VALLEY ESTATESCA5510028 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD-PEACEFUL PINES WATER SYSTEMCA5510021 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TUD-WARDS FERRY RANCHESCA5500363 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TWAIN HARTE COMMUNITY SERVICES DISTRICTCA5510005 · California · 1 violation records · 0 unresolved health-based in this snapshot
- TWAIN HARTE VALLEY MWCCA5500080 · California · 4 violation records · 1 unresolved health-based in this snapshot
- YOSEMITE NPS-HODGDON MEADOWCA5510503 · California · 2 violation records · 0 unresolved health-based in this snapshot
- YOSEMITE VISTA ESTATESCA5500119 · 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