| AARON KOEHN, POULTRY DBA PLUM GROVE FARMS | Water | — | — | — | No Violation Identified |
| ABB MOTORS AND MECHANICAL INC | Air, Water, Hazardous waste | 1 | — | — | No Violation Identified |
| ALUMINUM DYNAMICS, LLC | Air, Water, Hazardous waste | 2 | — | — | Violation Identified |
| AMERICAN EUROCOPTER LLC | Air, Water, Hazardous waste | 2 | — | — | No Violation Identified |
| AMERICAN POWER SOURCE, INC. | — | — | 1 | — | — |
| AMERICAN WARRIOR INC, COLUMBUS | Hazardous waste | — | — | — | No Violation Identified |
| ANDY ATKINS, ATKINS LAY DOWN YARD | Water | — | — | — | No Violation Identified |
| APAC MISSISSIPPI INC, BACCO MINE | Water | 2 | — | — | No Violation Identified |
| APAC-MISSISSIPPI INC COLUMBUS ASPHALT PLANT | Air, Water, Hazardous waste | 3 | — | — | No Violation Identified |
| ARD CONTRACTING INC, ALTEX TUBE | Water | — | — | — | No Violation Identified |
| ASPEN DENTAL | Hazardous waste | — | — | — | No Violation Identified |
| ATMOS ENERGY CORPORATION, COLUMBUS ADI PROJECT | Water | — | — | — | No Violation Identified |
| ATMOS ENERGY CORPORATION, COLUMBUS LATERAL PROJECT | Water | — | — | — | Significant Violation |
| ATMOS ENERGY SERVICE CENTER, LOWNDES COUNTY FACILITY | Water | — | — | — | No Violation Identified |
| AURORA FLIGHT SCIENCES | Water, Hazardous waste | — | — | — | No Violation Identified |
| B AND S SALVAGE INC | Water | — | — | — | No Violation Identified |
| BAPTIST MEMORIAL HOSPITAL - GOLDEN TRIANGLE | Hazardous waste | 1 | — | — | No Violation Identified |
| BC MISSISSIPPI INC | Air, Water | 4 | — | — | No Violation Identified |
| BEERSHEBA HILLS SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| BILL GRAY INC, WILD BILLS NUMBER 4 | Water | — | — | — | No Violation Identified |
| BILL GRAY INC, WILD BILLS NUMBER 4 | Water | — | — | — | No Violation Identified |
| BURFORD ELECTRIC SERVICE INC | Hazardous waste | — | — | — | No Violation Identified |
| CARL HOGAN HONDA | Hazardous waste | — | — | — | No Violation Identified |
| CFC TRANSPORTATION INC | Air, Hazardous waste | — | — | — | No Violation Identified |
| CHAINS BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| CHISM FRAME AND BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| CITY OF COLUMBUS | Drinking water | — | — | — | No Violation Identified |
| COLOM CONSTRUCTION COMPANY INC, BROWN MINE | Water | — | — | — | No Violation Identified |
| COLUMBUS AND GREENVILLE RAILWAY COMPANY, LOCOMOTIVE FUELING AND MAINTENANCE CENT | Water, Hazardous waste | 1 | — | — | No Violation Identified |
| COLUMBUS BRICK COMPANY INC | Air, Water | 3 | — | — | No Violation Identified |
| COLUMBUS DIESEL SERVICE INC | Hazardous waste | — | — | — | No Violation Identified |
| COLUMBUS LIGHT AND WATER DEPARTMENT, NORTH WATER TREATMENT PLANT | Water | 1 | — | — | No Violation Identified |
| COLUMBUS LOWNDES COUNTY AIRPORT | Water | — | — | — | No Violation Identified |
| COLUMBUS MARBLE WORKS | Water, Hazardous waste | — | — | — | No Violation Identified |
| COLUMBUS MOTOR COMPANY INC. | Hazardous waste | — | — | — | No Violation Identified |
| COLUMBUS ONE HOUR CLEANERS | Hazardous waste | — | — | — | No Violation Identified |
| COLUMBUS REDEVELOPMENT AUTHORITY, CITY OF COLUMBUS, MS, PARKVIEW | Water | — | — | — | No Violation Identified |
| COLUMBUS RIVER TRANSPORTATION CENTER | Water | — | — | — | No Violation Identified |
| COLUMBUS ROLL SHOP DIV. CHROME DEPOSIT CORP. | Hazardous waste | 3 | — | — | No Violation Identified |
| COLUMBUS, CITY OF, AUTOMATIC WEATHER OBSERVATION SYSTEM | Water | 1 | — | — | No Violation Identified |
| COLUMBUS, CITY OF, PROSPT PARK | Water | — | — | — | No Violation Identified |
| COMMERCE CLEANERS | Air, Hazardous waste | — | — | — | No Violation Identified |
| COOPER MARINE INC | Water | — | — | — | No Violation Identified |
| DATCO INTERNATIONAL INC | Hazardous waste | — | — | — | No Violation Identified |
| DBA RITE AID NUMBER 7139 | Hazardous waste | — | — | — | No Violation Identified |
| DELTA INDUSTRIES INC, GT INDUSTRIAL PARK PLANT | Water | 2 | — | — | No Violation Identified |
| DELTA INDUSTRIES, INC - PLANT 41 | — | — | — | — | — |
| DELTA INDUSTRIES, INC, COLUMBUS AD PLANT | Water | 2 | — | — | — |
| DIXIE AUTO PARTS INC | Water | — | — | — | No Violation Identified |
| DUTCH OIL COMPANY, NEW HOPE SPRINT MART | Water | 1 | — | — | No Violation Identified |
| DUTCH OIL COMPANY, SPRINT MART NUMBER 4144 | Air | 1 | 1 | — | Violation Identified |
| EAST LOWNDES #4-HERMAN-VAUGHN-TREATMENT FACILITY TF080 | Drinking water | — | — | — | No Violation Identified |
| EAST LOWNDES W/A #1-LEE STOKES-TREATMENT FACILITY TF080 | Drinking water | — | — | — | No Violation Identified |
| EAST LOWNDES W/A #2-HUCKLEBERRY-TREATMENT FACILITY TF104 | Drinking water | — | — | — | No Violation Identified |
| EAST LOWNDES W/A A EAST-OLD YORKVILLE-TREATMENT FACILITY TF080 | Drinking water | — | — | — | No Violation Identified |
| EAST LOWNDES W/A B WEST-OLD YORKVILLE RD-TREATMENT FACILITY TF080 | Drinking water | — | — | — | No Violation Identified |
| EASTERN ENVIRONMENTAL SOLUTIONS, LLC | Hazardous waste | — | — | — | No Violation Identified |
| EKO PEROXIDE LLC | Hazardous waste | — | — | — | No Violation Identified |
| ELM LAKE ASSOCIATION, ELM LAKE RANCH SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| FEDERAL EXPRESS - ZSTR | Hazardous waste | — | — | — | No Violation Identified |
| FOREMAN BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| FOUR COUNTY ELECTRIC CORPORATE CENTER | Water, Hazardous waste | — | — | — | No Violation Identified |
| GLENN MACHINE WORKS INC | Water | — | — | — | No Violation Identified |
| GOLDEN TRIANGLE MILL SERVICE | — | — | — | — | — |
| GOLDEN TRIANGLE MILL SERVICES | Hazardous waste | — | — | — | No Violation Identified |
| GOLDEN TRIANGLE REGIONAL AIRPORT | Water | — | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, AVALON SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, CEDARVIEW SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, DOYLE ESTATES SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, FIRST COLONY SUBDIVISION | Water | — | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, HILLCREST SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, HUGHES ESTATES SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, LABELLE ESTATES SUBDIVISION | Water | — | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, LAKEOVER ESTATES SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, NEW HOPE PARK SUBDIVISION | Water | — | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, OAKDALE PARK SUBDIVISION | Water | — | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, ROANOKE ESTATES SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| GREAT RIVER UTILITY OPERATING CO LLC, THORNTON ESTATES SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| HALLS BODY SHOP AND WRECKER SERVICE | Hazardous waste | — | — | — | No Violation Identified |
| HARDINS BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| INTERNATIONAL PAPER, COLUMBUS MILL | Air, Water, Hazardous waste | 5 | 2 | $200,000 | Significant Violation |
| J AND D DIRT CONSTRUCTION, GARTMAN MINE | Water | — | — | — | No Violation Identified |
| JOE HUDSON'S COLLISION CENTER - PLYMOUTH ROAD | Hazardous waste | — | — | — | No Violation Identified |
| JOHNSTON TOMBIGBEE FURNITURE, COLUMBUS 2 | Air, Water, Hazardous waste | 4 | — | — | No Violation Identified |
| KERR-MCGEE CHEMICAL CORPORATION | Air, Water, Hazardous waste | 7 | — | — | No Violation Identified |
| KLOECKNER METALS CORPORATION, KLOECKNER METALS | Water | — | — | — | No Violation Identified |
| KMART NUMBER 7719 | Hazardous waste | — | — | — | No Violation Identified |
| KROGER #427-25 | Hazardous waste | — | — | — | No Violation Identified |
| LOGISTA | Hazardous waste | — | — | — | No Violation Identified |
| LOGISTA | Hazardous waste | — | — | — | No Violation Identified |
| LOWE'S OF COLUMBUS, MS #1166 | Hazardous waste | — | — | — | No Violation Identified |
| LOWNDES CO INDUSTRIAL DEVELOPMENT AUTHORITY | Water | 1 | — | — | Violation Identified |
| LOWNDES COUNTY BOARD OF SUPERVISORS, CHARLEIGH FORD DRIVE | Water | — | — | — | No Violation Identified |
| LOWNDES COUNTY BOARD OF SUPERVISORS, HIGHWAY 82 NEW ATHLETIC COMPLEX | Water | — | — | — | No Violation Identified |
| LOWNDES COUNTY INDUSTRIAL DEVELOPMENT AUTHORITY, GOLDEN TRIANGLE INDUSTRIAL PARK | Water | — | — | — | No Violation Identified |
| LOWNDES COUNTY SCHOOL DISTRICT, CAREER TECHNOLOGY AND EDUCATION CENTER | Water | — | — | — | No Violation Identified |
| LOWNDES FUNERAL HOME | Air | — | — | — | No Violation Identified |
| LUXAPALILA VALLEY RAILROAD INC | Hazardous waste | — | — | — | No Violation Identified |
| MALOUF CONSTUCTION LLC, NEW FACILITY FOR QUALITY BEVERAGE | Water | — | — | — | No Violation Identified |
| MGM AUTO SALES PAINT AND BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| MILLS MORRIS CO. | Hazardous waste | — | — | — | No Violation Identified |
| MISS TRACY'S ABC AND ME LLC | Water | 1 | — | — | No Violation Identified |
| MISS WILDLIFE FISHERIES & PARKS, LAKE LOWNDES STATE PARK | Water | 2 | — | — | No Violation Identified |
| MISSISSIPPI INDUSTRIAL WASTE DISPOSAL | Hazardous waste | — | — | — | No Violation Identified |
| MISSISSIPPI PRECISION CAST PARTS LLC | Water, Hazardous waste | — | — | — | No Violation Identified |
| MISSISSIPPI UNIVERSITY FOR WOMEN | Hazardous waste | — | — | — | No Violation Identified |
| MMC MATERIALS INC - COLUMBUS SOUTH | — | — | — | — | — |
| MMC MATERIALS INC, COLUMBUS 45 | Water | 2 | — | — | No Violation Identified |
| MMC MATERIALS INC, STEEL DYNAMICS | Water | 2 | — | — | No Violation Identified |
| MONROE-TUFLINE MANUFACTURING CO., INC. | Hazardous waste | — | — | — | No Violation Identified |
| MS VALLEY GAS - TENN TAP #2 | Hazardous waste | — | — | — | No Violation Identified |
| MUW, PLYMOUTH BLUFF NATURE CENTER | Water | 1 | — | — | No Violation Identified |
| NEW PROCESS STEEL LP | Water | — | — | — | No Violation Identified |
| NOURYON PULP AND PERFORMANCE CHEMICALS | Air, Water, Hazardous waste | 6 | 1 | $37,500 | Violation Identified |
| O'REILLY AUTO PARTS STORE 945 | Hazardous waste | — | — | — | No Violation Identified |
| ORIGIS ENERGY LLC, GOLDEN TRIANGLE 2 SURPLUS BESS | Water | — | — | — | No Violation Identified |
| ORIGIS ENERGY, MS SOLAR 6 GOLDEN TRIANGLE PHASE 2 | Water | — | — | — | No Violation Identified |
| PACCAR ENGINE COMPANY | Air, Water, Hazardous waste | 8 | — | — | No Violation Identified |
| PALMER HOME FOR CHILDREN, MISS SHERIFFS BOY AND GIRLS RANCH | Water | 1 | — | — | Significant Violation |
| PARKER SAND AND GRAVEL | Water | — | — | — | No Violation Identified |
| PARKER SAND AND GRAVEL MINE | Water | — | — | — | No Violation Identified |
| PARKER SAND AND GRAVEL, PARKER SAND AND GRAVEL MINE | Water | 3 | — | — | No Violation Identified |
| PELA GEOENVIRONMENTAL INC, EXPRESS MART NUMBER 2 | Water | 4 | — | — | No Violation Identified |
| PHILLIPS CONTRACTING COMPANY INC, OLD COUNTY PIT | Water | — | — | — | No Violation Identified |
| PHILLIPS CONTRACTING COMPANY INC, PHILLIPS MINE | Water | 1 | — | — | No Violation Identified |
| PHILLIPS CONTRACTING COMPANY INC, PILKINTON FARM, COX LAKE PIT | Water | — | — | — | No Violation Identified |
| PRAIRIE LAND WATER ASSOC INC, PRAIRIE WATERS SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| PRAIRIE LAND WATER ASSOCIATION INC, ARBOR WALK SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| PRAIRIE LAND WATER ASSOCIATION, SEWER IMPROVEMENTS PHASE II | Water | — | — | — | No Violation Identified |
| PREMIER FORD | Hazardous waste | — | — | — | No Violation Identified |
| PRIMETALS TECHNOLOGIES USA LLC | Water, Hazardous waste | 8 | — | — | No Violation Identified |
| QUALITY AUTO BODY | Hazardous waste | — | — | — | No Violation Identified |
| RADIUS RECYCLING - COLUMBUS FACILITY | Water, Hazardous waste | 1 | — | — | No Violation Identified |
| RECYCLING SCIENCES INTERNATIONAL | Hazardous waste | — | — | — | No Violation Identified |
| REYNOLDS R. RIDGELY WASTEWATER PLANT | Water | 1 | — | — | Violation Identified |
| RIDGELAND WASTE DISPOSAL INC, RIDGELAND SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| RIVERSIDE DEDICATED LOGISTICS INC | Water | — | — | — | No Violation Identified |
| ROLLING FRITO LAY SALES LP, COLUMBUS BIN | Water | 1 | — | — | — |
| S AND E LAND HOLDINGS LLC, S AND E LAND HOLDINGS MINE | Water | 2 | — | — | Significant Violation |
| SANDYS BODY SHOP | Hazardous waste | — | — | — | No Violation Identified |
| SDI BIOCARBON SOLUTIONS, LLC | Air, Water | 1 | — | — | No Violation Identified |
| SDI BIOCARBON SOLUTIONS, LLC | Water | — | — | — | No Violation Identified |
| SHERWIN WILLIAMS CO. | Hazardous waste | — | — | — | No Violation Identified |
| SOUTH GATE SEWER DISTRICT | Water | 2 | — | — | Significant Violation |
| SOUTH LOWNDES W/A-TREATMENT FACILITY TF102 | Drinking water | — | — | — | No Violation Identified |
| SOUTHERN IONICS INC, COLUMBUS FACILITY | Water | — | — | — | No Violation Identified |
| STEEL DYNAMICS COLUMBUS, LLC | Air, Water, Hazardous waste | 8 | 1 | $24,300 | No Violation Identified |
| STEEL DYNAMICS, PROJECT PHOENIX | Water | — | — | — | No Violation Identified |
| SULLIVAN CONTRACTING INC | Water | — | — | — | No Violation Identified |
| TENNESSEE GAS PIPELINE COMPANY LLC, COLU | Air, Water, Hazardous waste | 3 | — | — | No Violation Identified |
| THOMAS TRUCK LEASE INC | Hazardous waste | — | — | — | No Violation Identified |
| THOMPSON MACHINERY OF MS INC | Water, Hazardous waste | — | — | — | No Violation Identified |
| TIDE INTERNATIONAL USA, INC C/O CASCIO STORAGE & WAREHOUSE | Hazardous waste | 1 | — | — | No Violation Identified |
| TRACTOR SUPPLY COMPANY #1591 | Hazardous waste | — | — | — | No Violation Identified |
| TRANSPORTATION SECURITY ADMINISTRATION AT GOLDEN TRIANGLE REGIONAL GTR | Hazardous waste | — | — | — | No Violation Identified |
| TRUE GRIT INC | Air, Water, Hazardous waste | — | — | — | No Violation Identified |
| UNITED PARCEL SERVICE, INC. - COLUMBUS | Water, Hazardous waste | — | 2 | $5,300,000 | No Violation Identified |
| US AIR FORCE, COLUMBUS AIR FORCE BASE | Water | 1 | — | — | No Violation Identified |
| US ARMY COE, WATERWAY MANAGEMENT CENTER | Water, Hazardous waste | — | — | — | No Violation Identified |
| US SDR LLC COLUMBUS, MS PLANT | Hazardous waste | — | — | — | No Violation Identified |
| USACOE, DEWAYNE HAYES REC AREA | Water | — | — | — | No Violation Identified |
| VALLEY FARM, SHAY PIT | Water | — | — | — | No Violation Identified |
| VALMET INC | Air, Water, Hazardous waste | 7 | — | — | Significant Violation |
| WALGREENS #11599 | Hazardous waste | — | — | — | No Violation Identified |
| WALGREENS #19986 | Hazardous waste | — | — | — | No Violation Identified |
| WALGREENS #2676 | Hazardous waste | — | — | — | No Violation Identified |
| WALMART SUPERCENTER #495 | Hazardous waste | — | — | — | No Violation Identified |
| WASTE PRO OF MISSISSIPPI, WASTE PRO/ COLUMBUS HAULING FACILITY | Water | 1 | — | — | No Violation Identified |
| WEST LOWNDES ELEMENTARY SCHOOL | Water | 2 | — | — | Significant Violation |
| WEYERHAEUSER - COLUMBUS MODIFIED FIBER FACILITY | Air, Water, Hazardous waste | 11 | — | — | No Violation Identified |
| WILCO PROPERTIES INC, KERRY ESTATES, NEW HOPE GARDEN APARTMENTS | Water | 1 | — | — | No Violation Identified |
| WILCO PROPERTIES INC, SHERWOOD FOREST SUBDIVISION | Water | — | — | — | No Violation Identified |
| WYSTERIA ESTATES AND APARTMENTS | Water | — | — | — | No Violation Identified |