DOW USA, LA DIVISION
Louisiana — Non-Transient Non-Community — PWSID: LA2047003
System Information
| PWSID | LA2047003 |
| System Name | DOW USA, LA DIVISION |
| System Type | Non-Transient Non-Community |
| Water Source | Surface 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 | PLAQUEMINE |
| ZIP Code | 70765 |
| Address | DOW |
| Organization | HISERMAN, BRANDEN |
| Phone | — |
Population & Service
| Population Served | 3,960 |
| Service Connections | 5 |
Drinking Water Violations (18)
This water system has 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2015 | Mar 31, 2015 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Mar 31, 2015 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Mar 1, 2015 | Mar 31, 2015 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Mar 31, 2015 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Mar 1, 2015 | Mar 31, 2015 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Mar 31, 2015 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Mar 1, 2015 | Mar 31, 2015 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Mar 31, 2015 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Jul 1, 2008 | Sep 30, 2008 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Sep 30, 2008 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2005 | Total Coliform Rule |
| Jan 11, 1994 | Feb 10, 1994 | Other | No | No | — | — | — | Archived | Feb 10, 1994 | Miscellaneous Other Rules | |
| Jan 11, 1994 | Feb 10, 1994 | Other | No | No | — | — | — | Archived | Feb 10, 1994 | Miscellaneous Other Rules | |
| Jan 11, 1994 | Feb 10, 1994 | Other | No | No | — | — | — | Archived | Feb 10, 1994 | Miscellaneous Other Rules |
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.