EPA-regulated facilities in St. Tammany Parish, LA

There are 3,806 EPA-regulated facilities inside St. Tammany Parish, Louisiana. The most common kinds are water discharge (2,704), hazardous waste (884), drinking water systems (254). 210 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 368 have a violation on record. Penalties over the last five years total $1.6M across 57 sites.

Open the map of St. Tammany Parish

3,806facilities in the county

210in significant noncompliance

368with a violation on record

$1.6Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	884
Large quantity generators	15
Small quantity generators	692
Transporters	10
Chemical (RMP/TRI)	24
Superfund	7
Air emissions	98
Major sources	1
Synthetic minor sources	1
Minor sources	53
Water discharge	2,704
Major permits	13
Minor permits	2,615
Drinking water systems	254
Greenhouse gas reporters	9

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.

COVINGTON MOBILE HOME PARKS LLC- CHAHTA MHP 1101 COLBERT STREET, MANDEVILLE, LA, 70448 Significant noncompliance · $41k in penalties
OAK VILLA MH COMMUNITY LLC 15455 HWY 190, COVINGTON, LA, 70435 Significant noncompliance · $21k in penalties
BOBS APARTMENTS 41931 HWY 190 EAST, SLIDELL, LA, 70461 Significant noncompliance · $20k in penalties
SUNBELT INNOVATIVE PLASTICS LLC 60051 CAMP VILLERE ROAD, SLIDELL, LA, 70469 Significant noncompliance · $14k in penalties
LITTLE VILLAGE, INC. ROBERTSON C STORE, ABITA SPRINGS, LA, 70420 Significant noncompliance · $11k in penalties
MBH OF SLIDELL, LLC - MATT BOWERS HYUNDAI SLIDELL 298 E. HOWZE BEACH RD, SLIDELL, LA, 70461 Significant noncompliance · $2k in penalties
COVINGTON STORAGE 1 LLC 75241 HWY 25, COVINGTON, LA, 70435 Significant noncompliance · $600 in penalties
REALTY INCOME PROPERTIES 29, LLC - FAMILY DOLLAR 81542 MILITARY RD/HWY 21, BUSH, LA, 70000 Significant noncompliance · $500 in penalties
W.C. SERVICES, INC -THE SOIL & GARDEN DEPOT OF MANDEVILLE 1303 N. CAUSEWAY BLVD, MANDEVILLE, LA, 70471 Significant noncompliance · $450 in penalties
HABIBI HOLDINGS LLC 7047 LA HWY 190 E. SERVICE RD, COVINGTON, LA, 70433 Significant noncompliance · $350 in penalties

Largest penalties

Penalties assessed over the last five years.

HOME DEPOT # HD0386 874 I10 SERVICE RD, SLIDELL, LA, 70459 $285k in penalties
THE HOME DEPOT 0358 40 PARK DR, COVINGTON, LA, 70433 $285k in penalties
THE HOME DEPOT #0365 143 NORTH SHORE BLVD, SLIDELL, LA, 70460 $285k in penalties
LOWE'S HOME CENTERS LLC - STORE #1698 1280 N HWY 190, COVINGTON, LA, 70433 $142k in penalties
LOWE'S HOME CENTERS LLC - STORE #1684 39184 NATCHEZ DR, SLIDELL, LA, 70461 $142k in penalties

Superfund sites

TULANE REGIONAL PRIMATE RESEARCH CENTER 18703 THREE RIVERS RD, COVINGTON, LA, 70433 $15k in penalties
SLIDELL AREA HOUSE 59326 HARRISON RD, SLIDELL, LA, 70460
SOUTHERN SHIPBUILDING 999 CANULETTE ROAD, SLIDELL, LA, 70459
BAYOU BONFOUCA BAYOU BONFOUCA, SLIDELL, LA, 70458
SLIDELL MERCURY 149 TERRY DRIVE, SLIDELL, LA, 70458-5623
MADISONVILLE CREOSOTE WORKS STATE HGWY 22, 2.5 MILES W OF CITY, MADISONVILLE, LA, 70447
SLIDELL DRUM SITE 52625 HIGHWAY 433, SLIDELL, LA, 70458

Towns in St. Tammany Parish

Bordering counties

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.