EPA-regulated facilities in Washington Parish, LA
There are 520 EPA-regulated facilities inside Washington Parish, Louisiana. The most common kinds are water discharge (230), hazardous waste (146), air emissions (115). 14 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 33 have a violation on record. Penalties over the last five years total $547k across 6 sites.
Open the map of Washington Parish
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 146 |
| Large quantity generators | 3 |
| Small quantity generators | 115 |
| Transporters | 2 |
| Chemical (RMP/TRI) | 12 |
| Superfund | 2 |
| Air emissions | 115 |
| Major sources | 6 |
| Synthetic minor sources | 1 |
| Minor sources | 65 |
| Water discharge | 230 |
| Major permits | 3 |
| Minor permits | 210 |
| Drinking water systems | 55 |
| Greenhouse gas reporters | 6 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
In significant noncompliance
The EPA's designation for its most serious or persistent violations, as of the latest data.
- THE LOUISIANA CASTLE-THE CASTLE TREATMENT PLANT 001 Significant noncompliance
- EXECUTIVE HOLDINGS LLC - FAMILY DOLLAR Significant noncompliance
- BROWNSTONE SAND & GRAVEL INC - KNIGHT PIT Significant noncompliance
- HAPPY ACRES MHP, LLC Significant noncompliance
- MAGNOLIA WATER UTILITY OPERATING CO., LLC -SANDSTONE LAKES STP Significant noncompliance
- BOGALUS WASTEWATER TREATMENT PLANT Significant noncompliance
- BAYWOOD APARTMENTS Significant noncompliance
- JOHN MINGO REPAIR YARD Significant noncompliance
- BASS CONCRETE LLC Significant noncompliance
- RED ZONE SPORTS BAR & GRILL LLC Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- INTERNATIONAL PAPER - BOGALUSA MILL $500k in penalties
- DOUBLE D MEAT, INC. $26k in penalties
- HARVEST MIDSTREAM COMPANY $14k in penalties
- ARCOSA AGGREGATES GULF COAST LLC - PLANT 24 - TRIPLE J FARMS $4k in penalties
- LAKEVIEW SAND AND GRAVEL $2k in penalties
Superfund sites
Towns in Washington Parish
Bordering counties
- Marion County, MS
- Pearl River County, MS
- Pike County, MS
- St. Tammany Parish
- Tangipahoa Parish
- Walthall County, MS
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.