HEARST MONUMENT STATE PARK
California - Non-Transient Non-Community - PWSID: CA4010300
System Information
| PWSID | CA4010300 |
| System Name | HEARST MONUMENT STATE PARK |
| System Type | Non-Transient Non-Community |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | SAN SIMEON |
| ZIP Code | 93452 |
| Address | 750 Hearst Castle Road |
| Organization | FAIRWEATHER, JOHN |
| Phone | 805-712-4865 |
Population & Service
| Population Served | 200 |
| Service Connections | 16 |
Drinking Water Violations (9)
This water system has 9 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, 2017 | Mar 31, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2017 | - | |
| Aug 1, 1996 | Aug 31, 1996 | TT | Yes | No | - | - | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | TT | Yes | No | - | - | - | Resolved | Aug 31, 1996 | - | |
| Jul 1, 1993 | Mar 1, 2000 | MR | No | No | - | TT | - | Resolved | Mar 1, 2000 | - | |
| Jul 1, 1993 | Jul 31, 1993 | TT | Yes | No | - | - | - | Resolved | Jul 2, 1993 | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.