PATTERSON WATER SYSTEM
Louisiana — Community Water System — PWSID: LA1101006
System Information
| PWSID | LA1101006 |
| System Name | PATTERSON WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 6, 1980 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | Louisiana |
| City | PATTERSON |
| ZIP Code | 70392 |
| Address | City Hall (Patterson Water System) |
| Organization | GROGAN, RODNEY |
| Phone | 985-395-5205 |
Population & Service
| Population Served | 8,456 |
| Service Connections | 2,591 |
Drinking Water Violations (58)
This water system has 58 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, 2025 | Dec 31, 2025 | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Archived | Sep 30, 2025 | — | |
| Apr 29, 2025 | — | Other | No | No | — | — | — | Resolved | Aug 20, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Jun 30, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Archived | Mar 31, 2025 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2024 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2024 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Archived | Dec 31, 2024 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Jan 16, 2009 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Jan 16, 2009 | — | |
| Jul 1, 2004 | — | Other | No | No | — | — | — | Resolved | Jul 22, 2005 | — | |
| Jul 1, 2004 | — | Other | No | No | — | — | — | Resolved | Jul 22, 2005 | — | |
| Sep 15, 2000 | Oct 14, 2000 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 14, 2000 | — | |
| Sep 15, 2000 | Oct 14, 2000 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 14, 2000 | — | |
| Sep 15, 2000 | Oct 14, 2000 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 14, 2000 | — | |
| Nov 1, 1994 | Nov 30, 1994 | TT | Yes | No | — | — | — | Archived | Nov 30, 1994 | — | |
| Nov 1, 1994 | Nov 30, 1994 | TT | Yes | No | — | — | — | Archived | Nov 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | TT | Yes | No | — | — | — | Archived | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | TT | Yes | No | — | — | — | Archived | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | TT | Yes | No | — | — | — | Archived | Apr 30, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Jan 1, 1994 | Jan 31, 1994 | TT | Yes | No | — | — | — | Resolved | Jan 31, 1994 | — | |
| Dec 1, 1993 | Dec 31, 1993 | TT | Yes | No | — | — | — | Archived | Dec 31, 1993 | — | |
| Dec 1, 1993 | Dec 31, 1993 | TT | Yes | No | — | — | — | Archived | Dec 31, 1993 | — | |
| Jul 1, 1993 | Jul 31, 1993 | TT | Yes | No | — | — | — | Archived | Jul 31, 1993 | — | |
| Jul 1, 1993 | Jul 31, 1993 | TT | Yes | No | — | — | — | Archived | Jul 31, 1993 | — | |
| Jul 1, 1992 | Feb 15, 1993 | MR | No | No | — | TT | — | Resolved | Feb 15, 1993 | — |
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.