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 | Mar 20, 2026 |
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 (12)
This water system has 12 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 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Apr 1, 2014 | Apr 30, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | — | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | — | |
| Dec 1, 2004 | Dec 31, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2004 | — | |
| Feb 1, 2001 | Apr 1, 2001 | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Feb 22, 2001 | — | |
| Feb 1, 2001 | Apr 1, 2001 | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Feb 22, 2001 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Nov 1, 1993 | Nov 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1993 | — | |
| Nov 1, 1993 | Nov 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1993 | — | |
| Jul 1, 1993 | — | MR | No | No | — | TT | — | Resolved | May 4, 2009 | — |
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.