PLAISANCE WATER SYSTEM
Louisiana — Community Water System — PWSID: LA1097012
System Information
| PWSID | LA1097012 |
| System Name | PLAISANCE WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 6, 1980 |
| Last Reported | Nov 14, 2025 |
Location & Contact
| State | Louisiana |
| City | OPELOUSAS |
| ZIP Code | 70570 |
| Address | Plaisance Water System |
| Organization | CELESTAIN, LINCOLN |
| Phone | 337-948-6832 |
Population & Service
| Population Served | 6,375 |
| Service Connections | 2,125 |
Drinking Water Violations (54)
This water system has 54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | Consumer Confidence Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Feb 22, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Feb 22, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Feb 22, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Feb 22, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2019 | Ground Water Rule |
| Nov 16, 2018 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2019 | Ground Water Rule |
| Oct 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 3, 2017 | Consumer Confidence Rule |
| Oct 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 3, 2017 | Consumer Confidence Rule |
| May 24, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 5, 2020 | Lead and Copper Rule |
| May 24, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 5, 2020 | Lead and Copper Rule |
| Sep 13, 2015 | — | Public Notice | Other | No | No | — | — | — | Resolved | Oct 21, 2015 | Public Notice Rule and Revised PN Rule |
| Sep 13, 2015 | — | Public Notice | Other | No | No | — | — | — | Resolved | Oct 21, 2015 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2015 | Jul 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | Total Coliform Rule |
| Jul 1, 2015 | Jul 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | Total Coliform Rule |
| Jul 1, 2015 | Jul 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | Total Coliform Rule |
| Jul 1, 2015 | Jul 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2015 | Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Jul 1, 2013 | Jun 30, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jun 30, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| May 1, 2008 | May 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2008 | Total Coliform Rule |
| May 1, 2008 | May 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2008 | Total Coliform Rule |
| May 1, 2008 | May 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2008 | Total Coliform Rule |
| May 1, 2008 | May 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2008 | Total Coliform Rule |
| Aug 1, 2002 | Aug 31, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2002 | Total Coliform Rule |
| Aug 1, 1998 | Aug 31, 1998 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 1998 | 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.