LAKE DON PEDRO CSD
California — Community Water System — PWSID: CA5510008
System Information
| PWSID | CA5510008 |
| System Name | LAKE DON PEDRO CSD |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | LA GRANGE |
| ZIP Code | 95329 |
| Address | 9751 Merced Falls Road |
| Organization | SAVIDGE, DAVE |
| Phone | 209-852-2331 |
Population & Service
| Population Served | 3,240 |
| Service Connections | 1,559 |
Drinking Water Violations (58)
This water system has 58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | May 31, 2025 | MON | No | No | — | — | — | Resolved | May 31, 2025 | — | |
| Apr 1, 2025 | May 31, 2025 | MON | No | No | — | — | — | Resolved | May 31, 2025 | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Oct 1, 2017 | — | MR | No | No | — | TT | — | Resolved | Nov 2, 2018 | — | |
| Oct 1, 2017 | — | MR | No | No | — | TT | — | Resolved | Nov 2, 2018 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MCL | Yes | No | .0862 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MCL | Yes | No | .0862 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2009 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MCL | Yes | No | .0836 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2008 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MCL | Yes | No | .0836 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0955 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0955 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0955 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0618 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0618 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .0618 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .089 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .089 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .089 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .1285 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .1285 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .1285 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .0961 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .0961 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .0961 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .1418 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .1418 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .1418 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2007 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1513 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1513 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1024 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1024 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1024 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MCL | Yes | No | .1513 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .0804 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .1377 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .1377 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2006 | — |
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.