LAKE SISKIYOU M.W.C.
California - Community Water System - PWSID: CA4700549
System Information
| PWSID | CA4700549 |
| System Name | LAKE SISKIYOU M.W.C. |
| 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 | Mar 20, 2026 |
Location & Contact
| State | California |
| City | MT. SHASTA |
| ZIP Code | 96067 |
| Address | P.O. Box 1381 |
| Organization | COHEN, TOM |
| Phone | 530-926-5370 |
Population & Service
| Population Served | 277 |
| Service Connections | 84 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2020 | - | TT | Yes | No | - | - | - | Resolved | May 4, 2021 | - | |
| May 1, 2020 | - | TT | Yes | No | - | - | - | Resolved | May 4, 2021 | - | |
| May 1, 2020 | - | TT | Yes | No | - | - | - | Resolved | May 4, 2021 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MCL | Yes | No | - | - | - | Resolved | Dec 31, 2019 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MCL | Yes | No | - | - | - | Resolved | Dec 31, 2019 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jul 31, 2019 | - | |
| Jul 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jul 31, 2019 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Feb 4, 2021 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Feb 4, 2021 | - | |
| Aug 1, 2014 | Aug 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2014 | - | |
| Aug 1, 2011 | Aug 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2011 | - | |
| Aug 1, 2011 | Aug 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2011 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2007 | Jul 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2007 | - | |
| Jul 1, 2007 | Jul 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2007 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Jul 1, 1984 | Jul 31, 1984 | Other | No | No | - | - | - | Archived | Jul 31, 1984 | - | |
| Oct 1, 1981 | Sep 30, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 30, 1982 | - | |
| Oct 30, 1980 | Oct 29, 1981 | MR | No | Yes | - | 15 pCi/L | - | Archived | Oct 29, 1981 | - | |
| - | - | - | 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.