MT. KONOCTI MUTUAL WATER COMPANY
California — Community Water System — PWSID: CA1710014
System Information
| PWSID | CA1710014 |
| System Name | MT. KONOCTI MUTUAL WATER COMPANY |
| System Type | Community Water System |
| Water Source | Surface 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 | KELSEYVILLE |
| ZIP Code | 95451 |
| Address | 9733 STATE HIGHWAY 281 |
| Organization | FARR, ALAN |
| Phone | 707-277-7466 |
Population & Service
| Population Served | 4,360 |
| Service Connections | 1,603 |
Drinking Water Violations (14)
This water system has 14 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, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 25, 2021 | Lead and Copper Rule |
| Oct 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 25, 2021 | Lead and Copper Rule |
| Apr 1, 2019 | Jun 30, 2019 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 64.8 UG/L | 0.060 mg/L | — | Resolved | Jun 30, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2019 | Jun 30, 2019 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 64.8 UG/L | 0.060 mg/L | — | Resolved | Jun 30, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2019 | Mar 31, 2019 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 66.9 UG/L | 0.060 mg/L | — | Resolved | Mar 31, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2019 | Mar 31, 2019 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 66.9 UG/L | 0.060 mg/L | — | Resolved | Mar 31, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2018 | Dec 31, 2018 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 64.9 UG/L | 0.060 mg/L | — | Resolved | Dec 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2018 | Dec 31, 2018 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | 64.9 UG/L | 0.060 mg/L | — | Resolved | Dec 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2015 | Jun 30, 2015 | TTHM | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2015 | Jun 30, 2015 | TTHM | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2015 | Mar 31, 2015 | TTHM | MCL | Yes | No | .0843 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2015 | Mar 31, 2015 | TTHM | MCL | Yes | No | .0843 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| May 1, 1988 | May 31, 1988 | Other | No | No | — | — | — | Archived | May 31, 1988 | Miscellaneous Other Rules | |
| Sep 1, 1986 | Sep 30, 1986 | Other | No | No | — | — | — | Archived | Sep 30, 1986 | Miscellaneous Other Rules |
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.