CALISTOGA, CITY OF
California — Community Water System — PWSID: CA2810002
System Information
| PWSID | CA2810002 |
| System Name | CALISTOGA, CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 2, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | CALISTOGA |
| ZIP Code | 94515 |
| Address | 414 Washington Street |
| Organization | RAYNER, DEREK |
| Phone | 707-942-2828 |
Population & Service
| Population Served | 5,610 |
| Service Connections | 2,229 |
Drinking Water Violations (33)
This water system has 33 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 67.35 UG/L | 0.060 mg/L | 60 | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 67.35 UG/L | 0.060 mg/L | 60 | Resolved | Sep 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 74.4 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 74.4 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 71.95 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 71.95 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2023 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .0621 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .0621 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .0622 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .0622 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .0615 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .0615 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2017 | — | |
| Oct 1, 2016 | Dec 31, 2016 | MCL | Yes | No | .0635 MG/L | 0.060 mg/L | .06 | Resolved | Apr 1, 2016 | — | |
| Oct 1, 2016 | Dec 31, 2016 | MCL | Yes | No | .0635 MG/L | 0.060 mg/L | .06 | Resolved | Apr 1, 2016 | — | |
| Oct 1, 2016 | Dec 31, 2016 | MCL | Yes | No | .0635 MG/L | 0.060 mg/L | .06 | Resolved | Apr 1, 2016 | — | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | .0995 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2015 | — | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | .0995 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2015 | — | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2015 | — | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .092 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .092 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Dec 1, 2008 | Dec 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Dec 1, 2008 | Dec 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Jun 1, 1995 | Jun 30, 1995 | TT | Yes | No | — | — | — | Resolved | Jun 30, 1995 | — | |
| Jun 1, 1995 | Jun 30, 1995 | TT | Yes | No | — | — | — | Resolved | Jun 30, 1995 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.