| ATMOS ENERGY CORPORATION, ATMOS ENERGY MSHQ SERVICE CENTER | Water | — | — | — | No Violation Identified |
| AUTO SERVICES INC | Hazardous waste | — | — | — | No Violation Identified |
| BARNETTS BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| BENCHMARK CONSTRUCTION CORPORATION, RIDGELAND FIRE STATION 5 | Water | — | — | — | No Violation Identified |
| BFI WASTE SYSTEMS OF MISSISSIPPI LLC - LITTLE DIXIE LANDFILL | Air, Water, Hazardous waste | 12 | 3 | $119,000 | Violation Identified |
| BIRDSONG CONSTRUCTION, PROJECT ATLAS, LIVINGSTON ROAD STOCKPILE AREA | Water | — | — | — | No Violation Identified |
| BP OIL SITE NUMBER 28890 | Hazardous waste | — | — | — | No Violation Identified |
| CAL-MAINE FOODS - RED RIVER-PLANT - NW CORNER OF US 271 / TX 37 | Drinking water | — | — | — | Violation Identified |
| CAR CARE CLINIC | Air | — | — | — | No Violation Identified |
| CARLOCK AUTO GROUP, PORSCHE RIDGELAND | Water | 1 | 1 | $8,400 | Violation Identified |
| CATALYST HEALTHCARE REAL ESTATE, RIDGELAND MEDICAL OFFICE BUILDING | Water | 1 | — | — | No Violation Identified |
| CERTIFIED AUTOMOTIVE | Air | — | — | — | No Violation Identified |
| CHRIST COVENANT SCHOOL, LLC, CSC BASEBALL FIELD | Water | — | — | — | No Violation Identified |
| CITY OF RIDGELAND | Drinking water | 1 | — | — | No Violation Identified |
| COSTCO WHOLESALE #1366 | Hazardous waste | — | — | — | No Violation Identified |
| CRESCENT UTILITY CO, INC | Drinking water | — | — | — | Violation Identified |
| DBA RITE AID NUMBER 7210 | Hazardous waste | — | — | — | No Violation Identified |
| DISCOUNT TIRE WORLD | Air | — | — | — | No Violation Identified |
| DIVERSIFIED TECHNOLOGY INC | Hazardous waste | — | — | — | No Violation Identified |
| DR HORTON, INC, MISSISSIPPI MOBILE DIVISION, OLD MAPLE | Water | — | — | — | No Violation Identified |
| ELITE CLEANERS | Hazardous waste | — | — | — | No Violation Identified |
| ENCLAVE AT TOWNE CENTER, THE | Water | 1 | — | — | No Violation Identified |
| ENTERGY MISSISSIPPI LLC, TRACEVIEW ADVANCED POWER STATION | Water | — | — | — | No Violation Identified |
| ENTERGY MISSISSIPPI, INC., COSMOS SUBSTATION | Water | 1 | — | — | No Violation Identified |
| EUROPEAN AUTOMOTIVE ENGINERING | Air | — | — | — | No Violation Identified |
| EUTAW CONSTRUCTION CO INC, STOKES MINE NUMBER 4 | Water | — | — | — | No Violation Identified |
| EVOQUA WATER TECHNOLOGIES LLC | Hazardous waste | — | — | — | No Violation Identified |
| FEDERAL HIGHWAY ADMINISTRATION, EASTERN FEDERAL LANDS HIGHWAY DIVISION, NATR DRA | Water | — | — | — | No Violation Identified |
| FORMER DAVIS SPECIALTY CHEMICAL, INC. SITE | Hazardous waste | — | — | — | No Violation Identified |
| GALLET AND ASSOCIATES INC | Hazardous waste | — | — | — | No Violation Identified |
| GOODYEAR TIRE AND RUBBER COMPANY, THE | Hazardous waste | — | — | — | No Violation Identified |
| HALLMARK CLEANERS, INC | Hazardous waste | — | — | — | No Violation Identified |
| HEMPHILL CONSTRUCTION COMPANY INC, NORTH LIVINGSTON EAST MINE | Water | — | — | — | No Violation Identified |
| HENDERSON'S GARAGE | Air | — | — | — | No Violation Identified |
| HOLIDAY INN AND HILTON TRU HOTEL | Water | — | — | — | No Violation Identified |
| HOLMES COMMUNITY COLLEGE, HOLMES ALLIED HEALTH FACILITY | Water | — | — | — | No Violation Identified |
| HUNT PROCESS CORPORATION SOUTHERN | Water, Hazardous waste | — | — | — | No Violation Identified |
| J JS JAPANESE AUTOMOTIVE | Hazardous waste | — | — | — | No Violation Identified |
| JAPANESE AUTOMOTIVE INC | Air | — | — | — | No Violation Identified |
| JOHN H MOON AND SONS INC | Hazardous waste | — | — | — | No Violation Identified |
| KERIOTH CONSTRUCTION INC, THE TOWNSHIP AT COLONY PARK | Water | — | — | — | No Violation Identified |
| KEY LLC, LIVINGSTON ROAD PIT | Water | — | — | — | No Violation Identified |
| KLEAN KOOL INC | Hazardous waste | — | — | — | No Violation Identified |
| KROGER #494-25 | Hazardous waste | — | — | — | No Violation Identified |
| LAKE HARBOUR DRIVE EXTENSION | Water | 1 | — | — | — |
| LOWE'S OF RIDGELAND, MS #2622 | Hazardous waste | 1 | — | — | No Violation Identified |
| MADISON COUNTY ECONOMIC DEVELOPMENT AUTHORITY, PROJECT X | Water | — | — | — | No Violation Identified |
| MADISON MATERIALS INDUSTRIES LLC | Air | — | — | — | No Violation Identified |
| MB II DEVELOPERS, LLC | Water | — | — | — | No Violation Identified |
| MCCLAIN INVESTMENTS, LLC | Water | — | — | — | — |
| MCGRAW RENTAL AND SUPPLY COMPANY | Hazardous waste | — | — | — | No Violation Identified |
| MDOT, MADISON, 102315 301000 | Water | 1 | — | — | — |
| MILLER INTERMODAL LOGISTICS SERVICES INC | Hazardous waste | — | — | — | No Violation Identified |
| MMC MATERIALS INC, AWS JAN 200 | Water | 2 | — | — | Violation Identified |
| MS MADISON SOUTH RUBBISH LANDFILL, LLC | Water | — | — | — | No Violation Identified |
| O.B.CURTIS WATERTREATMENT PLANT | Water | 1 | — | — | Significant Violation |
| OKLAHOMA INSTALLATION COMPANY | Hazardous waste | — | — | — | No Violation Identified |
| OLD ATLANTA ROAD SELF STORAGE | Water | — | — | — | No Violation Identified |
| OMNICARE OF JACKSON | Hazardous waste | — | — | — | No Violation Identified |
| PORTRAIT INNOVATIONS | Hazardous waste | — | — | — | No Violation Identified |
| PRADO VISTA REAL ESTATE HOLDINGS, LLC, PRADO VISTA DEVELOPMENT | Water | 1 | — | — | No Violation Identified |
| RENAISSANCE AT COLONY PARK LLC, PROJECT ANCHOR | Water | — | — | — | No Violation Identified |
| RENAISSANCE PHASE IV, COSTCO GASOLINE | Water | 1 | — | — | No Violation Identified |
| RENAISSANCE PHASE IV, LLC, CFA RIDGELAND, MS | Water | 1 | — | — | No Violation Identified |
| RIDGELAND BODY SHOP INC | Air, Hazardous waste | — | — | — | No Violation Identified |
| RIDGELAND, CITY OF, MS4 STORMWATER MANAGEMENT PROGRAM | Water | 4 | — | — | No Violation Identified |
| SARTAIN ASSOCIATES, INC, BRITTONS ABBEY | Water | 1 | — | — | No Violation Identified |
| SCOTTY'S TIRE & AUTOMOTIVE | Air | — | — | — | No Violation Identified |
| SELECT EDGE REALTY LLC, THE HERITAGE AT JACOBS FARM | Water | — | — | — | No Violation Identified |
| SOUTHERN BEVERAGE COMPANY, SOUTHERN BEVERAGE CONTROLLED ENVIRONMENT WAREHOUSE | Water | — | — | — | No Violation Identified |
| STORAGE PARK DEVELOPMENT | Water | 1 | — | — | No Violation Identified |
| THE HASKELL COMPANY, JAN 200 HASKELL | Water | 1 | — | — | — |
| THE UNIVERSITY OF MISSISSIPPI MEDICAL CENTER, UMMC COLONY PARK PHASE ONE | Water | — | — | — | No Violation Identified |
| UNITED PARCEL SERVICE INC, UPS RIDGELAND | Water | 2 | — | — | No Violation Identified |
| UNITED PARCEL SERVICE, INC. - RIDGELAND | Hazardous waste | — | 2 | $5,300,000 | No Violation Identified |
| WAGGONER ENGINEERING, INC, WHITE OAK CREEK SEWER INTERCEPTOR | Water | — | — | — | No Violation Identified |
| WALGREENS #5655 | Hazardous waste | — | — | — | No Violation Identified |
| WALK ONS BISTREAUX AND BAR | Water | — | — | — | No Violation Identified |
| WALMART SUPERCENTER #875 | Hazardous waste | — | — | — | No Violation Identified |
| WATKINS BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| WORD OF LIFE CHURCH, WORD OF LIFE HIGHLAND COLONY EXPANSION | Water | — | — | — | No Violation Identified |