SUNNYSLOPE COUNTY WATER DIST
California — Community Water System — PWSID: CA3510003
System Information
| PWSID | CA3510003 |
| System Name | SUNNYSLOPE COUNTY WATER DIST |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | HOLLISTER |
| ZIP Code | 95023 |
| Address | 3570 Airline Highway |
| Organization | LANDER, DREW |
| Phone | 831-637-4670 |
Population & Service
| Population Served | 24,954 |
| Service Connections | 7,688 |
Drinking Water Violations (8)
This water system has 8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 1996 | Sep 30, 1997 | Nitrate | MCL | Yes | No | 58.5 MG/L | 10 mg/L | 45 | Resolved | Sep 30, 1997 | Nitrate Rule |
| Oct 1, 1996 | Sep 30, 1997 | Nitrate | MCL | Yes | No | 58.5 MG/L | 10 mg/L | 45 | Resolved | Sep 30, 1997 | Nitrate Rule |
| Jan 1, 1996 | Jan 31, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 1996 | Total Coliform Rule |
| Jan 1, 1996 | Jan 31, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 1996 | Total Coliform Rule |
| Jul 1, 1995 | Jul 31, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1995 | Total Coliform Rule |
| Jul 1, 1995 | Jul 31, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1995 | Total Coliform Rule |
| Jun 1, 1995 | Jun 30, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | Total Coliform Rule |
| Jun 1, 1995 | Jun 30, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | Total Coliform Rule |
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.