MADERA CO MD10A-MADERA RANCHOS
California — Community Water System — PWSID: CA2010008
System Information
| PWSID | CA2010008 |
| System Name | MADERA CO MD10A-MADERA RANCHOS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 31, 1980 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | MADERA |
| ZIP Code | 93637 |
| Address | 200 WEST 4TH ST., THIRD FLOOR |
| Organization | TOLER, PHIL |
| Phone | 559-675-7811 |
Population & Service
| Population Served | 3,172 |
| Service Connections | 946 |
Drinking Water Violations (11)
This water system has 11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2014 | Apr 30, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | Total Coliform Rule |
| Apr 1, 2014 | Apr 30, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | Total Coliform Rule |
| Nov 1, 2010 | Nov 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | Total Coliform Rule |
| Nov 1, 2010 | Nov 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | Total Coliform Rule |
| Dec 1, 2004 | Dec 31, 2004 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2004 | Total Coliform Rule |
| Feb 1, 2001 | Apr 1, 2001 | Nitrate | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Feb 22, 2001 | Nitrate Rule |
| Feb 1, 2001 | Apr 1, 2001 | Nitrate | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Feb 22, 2001 | Nitrate Rule |
| Jul 1, 1994 | Jul 31, 1994 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | Total Coliform Rule |
| Nov 1, 1993 | Nov 30, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1993 | Total Coliform Rule |
| Nov 1, 1993 | Nov 30, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1993 | Total Coliform Rule |
| Jul 1, 1993 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 4, 2009 | Lead and Copper 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.