LITTLE POTATO SLOUGH MUTUAL
California — Community Water System — PWSID: CA3910022
System Information
| PWSID | CA3910022 |
| System Name | LITTLE POTATO SLOUGH MUTUAL |
| 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 | Feb 25, 1988 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | LODI |
| ZIP Code | 95242 |
| Address | 14900 W HWY 12 |
| Organization | ARNERICH, DENYSE |
| Phone | 209-339-1602 |
Population & Service
| Population Served | 1,510 |
| Service Connections | 202 |
Drinking Water Violations (29)
This water system has 29 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, 2021 | Dec 31, 2021 | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2021 | — | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2021 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .068 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .068 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | .071 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | .071 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | .069 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2019 | — | |
| Apr 1, 2016 | Jun 30, 2016 | MCL | Yes | No | .065 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2016 | — | |
| Apr 1, 2016 | Jun 30, 2016 | MCL | Yes | No | .065 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2016 | — | |
| Nov 1, 2004 | Dec 31, 2004 | Other | No | No | — | — | — | Resolved | Dec 31, 2004 | — | |
| Nov 1, 2004 | Dec 31, 2004 | Other | No | No | — | — | — | Resolved | Dec 31, 2004 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Feb 11, 2005 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Feb 11, 2005 | — | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Aug 28, 2003 | — | |
| Mar 1, 2001 | Mar 31, 2001 | MR | No | No | — | — | — | Resolved | Mar 31, 2001 | — | |
| Mar 1, 2001 | Mar 31, 2001 | MR | No | No | — | — | — | Resolved | Mar 31, 2001 | — | |
| Dec 1, 1999 | Dec 31, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1999 | — | |
| Jun 1, 1989 | Jun 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Archived | Jun 30, 1989 | — | |
| Jun 1, 1989 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Jun 30, 1989 | — | |
| Jun 1, 1989 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 30, 1989 | — | |
| Jun 1, 1989 | Jun 30, 1989 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Jun 30, 1989 | — | |
| Jun 1, 1989 | Jun 30, 1989 | Other | No | No | — | — | — | Archived | Jun 30, 1989 | — | |
| Jun 1, 1988 | Jun 30, 1988 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 30, 1988 | — | |
| Jun 1, 1988 | Jun 30, 1988 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Jun 30, 1988 | — | |
| Jun 1, 1988 | Jun 30, 1988 | Other | No | No | — | — | — | Archived | Jun 30, 1988 | — | |
| Jun 1, 1988 | Jun 30, 1988 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Jun 30, 1988 | — | |
| Jun 1, 1988 | Jun 30, 1988 | MR | No | Yes | — | 10 mg/L | — | Archived | Jun 30, 1988 | — | |
| — | — | — | 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.