ATASCADERO STATE HOSPITAL
California — Community Water System — PWSID: CA4010832
System Information
| PWSID | CA4010832 |
| System Name | ATASCADERO STATE HOSPITAL |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 6, 1994 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | ATASCADERO |
| ZIP Code | 93423 |
| Address | PO Box 7001 |
| Organization | DYE, RANDY |
| Phone | 805-468-2249 |
Population & Service
| Population Served | 4,100 |
| Service Connections | 875 |
Drinking Water Violations (6)
This water system has 6 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, 2023 | Dec 31, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2015 | — | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2015 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | — |
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.