MT BALDY HOMEOWNERS ASSN.
California — Community Water System — PWSID: CA3610033
System Information
| PWSID | CA3610033 |
| System Name | MT BALDY HOMEOWNERS ASSN. |
| 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 | MT. BALDY |
| ZIP Code | 91759 |
| Address | P. O. BOX 611 |
| Organization | WISMER, RICHARD |
| Phone | 909-946-6860 |
Population & Service
| Population Served | 1,700 |
| Service Connections | 115 |
Drinking Water Violations (17)
This water system has 17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2019 | Aug 31, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2019 | Revised Total Coliform Rule |
| Aug 1, 2019 | Aug 31, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2019 | Revised Total Coliform Rule |
| Aug 1, 2017 | Aug 31, 2017 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2017 | Aug 31, 2017 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2017 | Aug 31, 2017 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2017 | Aug 31, 2017 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 1, 2016 | Feb 29, 2016 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2016 | Total Coliform Rule |
| Feb 1, 2016 | Feb 29, 2016 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2016 | Total Coliform Rule |
| Jan 1, 2013 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 20, 2016 | Lead and Copper Rule |
| Jan 1, 2013 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 20, 2016 | Lead and Copper Rule |
| Oct 1, 2012 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 10, 2015 | Lead and Copper Rule |
| Aug 1, 2001 | Aug 31, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | Total Coliform Rule |
| Aug 1, 2001 | Aug 31, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | Total Coliform Rule |
| Sep 1, 1997 | Sep 30, 1997 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1997 | Total Coliform Rule |
| Sep 1, 1997 | Sep 30, 1997 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1997 | Total Coliform Rule |
| Aug 1, 1997 | Aug 31, 1997 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1997 | Total Coliform Rule |
| Aug 1, 1997 | Aug 31, 1997 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1997 | Total Coliform Rule |
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.