PYRAMID CREEK TRAILHEAD
California — Transient Non-Community — PWSID: CA0900502
System Information
| PWSID | CA0900502 |
| System Name | PYRAMID CREEK TRAILHEAD |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 27, 1983 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | HOLLISTER |
| ZIP Code | 95023 |
| Address | 292 SUMMERSET DR |
| Organization | DAMM, ADAM |
| Phone | 831-801-5826 |
Population & Service
| Population Served | 2,000 |
| Service Connections | 3 |
Drinking Water Violations (19)
This water system has 19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2021 | Dec 31, 2021 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Nitrate Rule |
| Jan 1, 2021 | Dec 31, 2021 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Nitrate Rule |
| Jan 1, 2013 | Sep 30, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2013 | Nitrate Rule |
| Jan 1, 2013 | Sep 30, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2013 | Nitrate Rule |
| Jan 1, 2011 | Dec 31, 2011 | Nitrite | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2011 | Nitrate Rule |
| Jan 1, 2011 | Dec 31, 2011 | Nitrite | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2011 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | Total Coliform Rule |
| Jul 1, 2005 | Jul 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | Total Coliform Rule |
| Jul 1, 2005 | Jul 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | Total Coliform Rule |
| Jan 1, 1996 | Jan 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1996 | Total Coliform Rule |
| May 1, 1983 | May 31, 1983 | Other | No | No | — | — | — | Archived | May 31, 1983 | Miscellaneous Other Rules | |
| Oct 1, 1982 | Oct 31, 1982 | Other | No | No | — | — | — | Archived | Oct 31, 1982 | Miscellaneous Other Rules |
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.