HOLLISTER, CA · San Benito County
HOLLISTER, 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)
- CA3510001
- System type
- Community Water System
- Population served
- 26,017
- Service connections
- 7,884
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2024 – June 30, 2024
ArchivedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2016 – March 31, 2016
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
October 1, 2015 – October 31, 2015
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Nitrate
January 1, 1999 – January 1, 2001
ResolvedNotification, Public
—No contaminant on record
September 1, 1987 – September 30, 1987
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2024 – June 30, 2024 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| January 1, 2016 – March 31, 2016 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2015 – October 31, 2015 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 1999 – January 1, 2001 | Monitoring, Regular | Nitrate | — | Resolved |
| September 1, 1987 – September 30, 1987 | Notification, Public | — | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- July 25, 2024State Administrative/Compliance Order without penalty issued5 linked violations
- November 30, 2015State Compliance achieved6 linked violations
- August 31, 2010State Administrative/Compliance Order without penalty issued4 linked violations
- June 11, 2002State Compliance achieved2 linked violations
- May 7, 2002State Administrative/Compliance Order without penalty issued2 linked violations
- June 16, 1999State Compliance achieved18 linked violations
- February 19, 1999State Compliance achieved18 linked violations
Contact
HERNANDEZ, JAVIER
831-636-4370
HOLLISTER, CA 95023