EPA-regulated facilities in Harrison County, MS

There are 1,070 EPA-regulated facilities inside Harrison County, Mississippi. The most common kinds are water discharge (506), hazardous waste (468), air emissions (75). 9 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 25 have a violation on record. Penalties over the last five years total $5.9M across 17 sites.

Open the map of Harrison County

1,070facilities in the county

9in significant noncompliance

25with a violation on record

$5.9Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	468
Treatment, storage or disposal	3
Large quantity generators	5
Small quantity generators	366
Transporters	6
Chemical (RMP/TRI)	44
Superfund	11
Air emissions	75
Major sources	11
Synthetic minor sources	6
Minor sources	19
Water discharge	506
Major permits	10
Minor permits	397
Drinking water systems	74
Greenhouse gas reporters	4
Data centers	1
Scrap yards	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.

UNITED STATES MARINE INC. 10011 LORRAINE RD, GULFPORT, MS, 39503 Significant noncompliance · $300k in penalties
CHEMOURS DELISLE PLANT 7685 KILN-DELISLE ROAD, PASS CHRISTIAN, MS, 39571 Significant noncompliance · $79k in penalties
JOHN MCCARTHY, O RANGUTANGS 12097 LORRAINE ROAD, BILOXI, MS, 39532 Significant noncompliance
HENRY'S MOBILE HOME PARK LLC 12413 JOHN LEE ROAD, BILOXI, MS, 39532 Significant noncompliance
RIDGECREST ESTATES MOBILE HOME PARK 11220 HUGHES ROAD, GULFPORT, MS, 39503 Significant noncompliance
DESIGN PRECAST AND PIPE INC, THOMAS D MURRAY MINE 11491 COUNTY FARM ROAD, GULFPORT, MS, 39503 Significant noncompliance
TWIN L CONSTRUCTION INC BELLS FERRY ROAD, PASS CHRISTIAN, MS, 39571 Significant noncompliance
BILOXI REGIONAL MEDICAL CENTER 150 REYNOIR STREET, BILOXI, MS, 39530 Significant noncompliance
VIDALIA MHC LLC, VIDALIA ESTATES MHP VIDALIA AND EDWIN LADNER ROAD, PASS CHRISTIAN, MS, 39571 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE, INC. - GULFPORT 1930 34TH STREET, GULFPORT, MS, 39501 $5.3M in penalties
AUDUBON LAKE SUBDIVISION HIGHWAY 53, GULFPORT, MS, 39503 $48k in penalties
MERITAGE HOMES OF MISSISSIPPI, INC,THE PRESERVE AT PARKER CREEK SHRINERS BOULEVARD, BILOXI, MS, 39532 $48k in penalties
MISSISSIPPI POWER COMPANY, PLANT JACK WATSON 10406 LORRAINE ROAD, GULFPORT, MS, 39503 $26k in penalties
GULFPORT, CITY OF, MS4 STORMWATER MANAGEMENT PROGRAM PHYSICAL ADDRESS, GULFPORT, MS, 39502 $25k in penalties

Superfund sites

CHEMFAX, INC. THREE RIVERS ROAD AND CREOSOTE ROAD, GULFPORT, MS, 39505
J. MCDERMOTT, INC.- 3 RIVERS 10220 THREE RIVERS ROAD, GULFPORT, MS, 39505
CHEMFAX RESIN SITE 14385 SEAWAY ROAD, GULFPORT, MS, 39503-4637
US NAVY, NAVAL CONSTRUCTION BATTALION CENTER 5200 CBC 2ND STREET CODE 17, GULFPORT, MS, 39501
HIGHSIDE CHEMICAL CORPORATION 11114 REICHOLD ROAD, GULFPORT, MS, 39503
VA GULF COAST VETERANS HEALTH CARE SYSTEMS 400 VETERANS AVENUE, BILOXI, MS, 39531
US DOD USAF KEESLER AFB 508 L STREET, BILOXI, MS, 39534
LEMOYNE BLVD 10294 LAMEY BRIDGE ROAD, D'IBERVILLE, MS, 39540
DSI FACILITY 1660 5TH STREET, BILOXI, MS, 39532
U.S. FORESTRY SERVICE ACCESS ROADS 100 W. CAPITOL ST., MCHENRY, MS, 39574

Data centers

HANCOCK BANK DATA CENTER LANDON ROAD, GULFPORT, MS, 39502

Towns in Harrison County

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.