HYDESVILLE CO. W.D.
California — Community Water System — PWSID: CA1210019
System Information
| PWSID | CA1210019 |
| System Name | HYDESVILLE CO. W.D. |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | HYDESVILLE |
| ZIP Code | 95547 |
| Address | P.O. BOX 561 |
| Organization | STOFFEL, JORDAN |
| Phone | 707-768-3000 |
Population & Service
| Population Served | 1,366 |
| Service Connections | 414 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2025 | Lead and Copper Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2025 | Lead and Copper Rule |
| Jan 1, 2023 | Dec 31, 2023 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2023 | Dec 31, 2023 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2023 | Dec 31, 2023 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2023 | Dec 31, 2023 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2007 | Aug 31, 2007 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Aug 31, 2007 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | Total Coliform Rule |
| Dec 1, 2006 | Jan 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2007 | Total Coliform Rule |
| Dec 1, 2006 | Jan 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2007 | Total Coliform Rule |
| Sep 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Sep 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Oct 1, 2001 | Dec 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | 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.