MODESTO, CA · Stanislaus County
MODESTO, CITY OF Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA5010010
- System type
- Community Water System
- Population served
- 218,771
- Service connections
- 70,793
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedNitrate
August 1, 2013 – August 31, 2013
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1995 – September 30, 1995
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
November 1, 1993 – November 30, 1993
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 2013 – August 31, 2013 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Resolved |
| September 1, 1995 – September 30, 1995 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| November 1, 1993 – November 30, 1993 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- July 19, 2010State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
- April 12, 2007State Compliance achieved3 linked violations
- March 23, 2007State Administrative/Compliance Order without penalty issued2 linked violations
- February 28, 2001State Compliance achieved9 linked violations
- August 1, 1995State Compliance achieved9 linked violations
Contact
MARTINEZ, MANUEL
209-342-4592
MODESTO, CA 95355