LAKE HENSHAW RESORT INC.
California — Community Water System — PWSID: CA3700900
System Information
| PWSID | CA3700900 |
| System Name | LAKE HENSHAW RESORT INC. |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | SANTA YSABEL |
| ZIP Code | 92070 |
| Address | 26439 HWY 76 |
| Organization | MENDENHALL, JANICE |
| Phone | 760-782-3501 |
Population & Service
| Population Served | 9,913 |
| Service Connections | 112 |
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, 2022 | Oct 31, 2022 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Oct 31, 2022 | Revised Total Coliform Rule |
| Oct 1, 2022 | Oct 31, 2022 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Oct 31, 2022 | Revised Total Coliform Rule |
| Sep 1, 2021 | Sep 30, 2021 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Sep 30, 2021 | Revised Total Coliform Rule |
| Sep 1, 2021 | Sep 30, 2021 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Sep 30, 2021 | Revised Total Coliform Rule |
| Oct 1, 2018 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 28, 2019 | Lead and Copper Rule |
| Oct 1, 2018 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 28, 2019 | Lead and Copper Rule |
| Jan 1, 2017 | Dec 31, 2017 | Nitrite | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2017 | Nitrate Rule |
| Jan 1, 2017 | Dec 31, 2017 | Nitrite | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2017 | Nitrate Rule |
| Jan 1, 2017 | Dec 31, 2017 | Nitrite | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2017 | Nitrate Rule |
| Jan 1, 2017 | Jan 31, 2017 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Feb 28, 2016 | Nitrate Rule |
| Jan 1, 2017 | Jan 31, 2017 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Feb 28, 2016 | Nitrate Rule |
| Jan 1, 2016 | Jan 31, 2016 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jan 31, 2016 | Inorganic Chemicals |
| Jan 1, 2016 | Jan 31, 2016 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jan 31, 2016 | Inorganic Chemicals |
| Jan 1, 2016 | Jan 31, 2016 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jan 31, 2016 | Arsenic Rule |
| Jan 1, 2016 | Jan 31, 2016 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Jan 31, 2016 | Nitrate Rule |
| Jan 1, 2016 | Jan 31, 2016 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jan 31, 2016 | Arsenic Rule |
| Jan 1, 2016 | Jan 31, 2016 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jan 31, 2016 | Nitrate Rule |
| Jan 1, 2016 | Jan 31, 2016 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jan 31, 2016 | Nitrate Rule |
| Jan 1, 2016 | Jan 31, 2016 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Jan 31, 2016 | Nitrate Rule |
| Feb 1, 2015 | Feb 28, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2015 | Total Coliform Rule |
| Feb 1, 2015 | Feb 28, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2015 | Total Coliform Rule |
| Apr 1, 2007 | Jun 30, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2007 | Nitrate Rule |
| Apr 1, 2007 | Jun 30, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2007 | Nitrate Rule |
| Oct 1, 1981 | Sep 30, 1982 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Archived | Sep 30, 1982 | Radionuclides and Revised Rad Rule |
| Oct 30, 1980 | Oct 29, 1981 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Archived | Oct 29, 1981 | Radionuclides and Revised Rad Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.