| ACADIANA BOTTLING CO | Hazardous waste | — | — | — | No Violation Identified |
| AMG SPECIALITY HOSPITAL | Hazardous waste | — | — | — | No Violation Identified |
| ARIES MARINE CORP | Hazardous waste | — | — | — | No Violation Identified |
| BALLEWS OUTDOOR & RPR | Hazardous waste | — | — | — | No Violation Identified |
| BASIN CHEMICAL SOLUTIONS LLC | Hazardous waste | 1 | — | — | No Violation Identified |
| BLACK MAX DOWNHOLE TOOLS | Hazardous waste | — | — | — | No Violation Identified |
| BOTTOM HOLE ASSURANCE INC | Water | — | — | — | No Violation Identified |
| CAJUN CONSTRUCTION | Hazardous waste | — | — | — | No Violation Identified |
| CAJUN MOBILE HOME PARK WATER SYSTEM-TREATMENT PLANT | Drinking water | — | — | — | Significant Violation |
| CAJUN RIDE & SHINE, LLC | Water | — | — | — | No Violation Identified |
| CHENEY CO | Hazardous waste | — | — | — | No Violation Identified |
| CHEVRON COMMUNICATIONS WAREHOUSE | Hazardous waste | — | — | — | No Violation Identified |
| CIRCLE K STORES, INC #6839 | Water | — | — | — | No Violation Identified |
| CITY OF YOUNGSVILLE | Water | 1 | — | — | No Violation Identified |
| CITY OF YOUNGSVILLE WTP | Water | — | — | — | No Violation Identified |
| COLLISION WORKS OF ACADIANA LLC | Hazardous waste | — | — | — | No Violation Identified |
| CUDD PUMPING SERVICE | Hazardous waste | — | — | — | No Violation Identified |
| CVS PHARMACY #0016 | Hazardous waste | 1 | — | — | No Violation Identified |
| DIRECTIONAL RENTALS | Hazardous waste | — | — | — | No Violation Identified |
| DLSD HOMES LLC - METAIRIE PLACE | Water | — | — | — | No Violation Identified |
| DOLLAR GENERAL #10520 | Hazardous waste | — | — | — | No Violation Identified |
| DOLLAR GENERAL #19777 | Hazardous waste | — | — | — | No Violation Identified |
| DOLLAR GENERAL #9639 | Hazardous waste | — | — | — | No Violation Identified |
| DOLLAR GENERAL 15878 | Hazardous waste | — | — | — | No Violation Identified |
| DR HORTON INC- GULF COAST: WOODLANDS COVE | Water | — | — | — | No Violation Identified |
| DSI INSPECTION SERVICE LOUISIANA | Hazardous waste | — | — | — | No Violation Identified |
| DSLD HOMES LLC - CANEVIEW ESTATES | Water | — | — | — | No Violation Identified |
| DSLD HOMES LLC - ROSEWALK | Water | — | — | — | No Violation Identified |
| DSLD HOMES, LLC - FAIRHAVEN | Water | — | — | — | No Violation Identified |
| DSLD HOMES, LLC - GABRIEL'S PLACE | Water | — | — | — | No Violation Identified |
| DSLD HOMES, LLC - SUGAR MILL POND COTTAGES | Water | — | — | — | No Violation Identified |
| E & M SPECIALTY CO | Hazardous waste | — | — | — | No Violation Identified |
| EVCO DEVELOPMENT LLC - RESERVE COTTAGES TOWNHOMES SUBDIVISION | Water | — | — | — | No Violation Identified |
| FIRST ASSEMBLY OF GOD CHURCH, INC. | Water | — | — | — | No Violation Identified |
| FLEX OPERATIONS LLC | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - CANEVIEW PHASE 3 | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - LEGACY ESTATES | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - SUGAR MILL POND - PHASE 29 | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - THE TRAILS AT LANGLINAIS ESTATES | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION - SOUTHERN TRAILS SUBDIVISION | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - CANEVIEW ESTATES PHASE II | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - CENTRAL VILLAGE PHASE II | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - EQUIPMENT & OFFICE | Water | — | — | — | Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - HILLWOOD SUBDIVISION | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - LA 82 DIRT PIT | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - PARC BONIN BEND & COMMERCIAL PARK DEVELOPMENT | Water | — | — | — | No Violation Identified |
| GLENN LEGE CONSTRUCTION LLC - SUGAR MILL POND SUBDIVISION-PHASE 18C | Water | — | — | — | — |
| GLENN LEGE CONSTRUCTION LLC - THE PALMS CROSSING | Water | — | — | — | No Violation Identified |
| GUIDRY LAND DEVELOPMENT LLC - GUIDRY RANCH | Water | — | — | — | No Violation Identified |
| GUNN WIRELINE INC | Hazardous waste | — | — | — | No Violation Identified |
| HESS CORPORATION AT MSI US MID-SOUTH MACHINE | Hazardous waste | — | — | — | No Violation Identified |
| HIGH END AUTOMOTIVE LLC | Hazardous waste | — | — | — | No Violation Identified |
| INTERNATIONAL OILFIELD SVCS/PCI LLC | Water, Hazardous waste | — | — | — | No Violation Identified |
| IRONGATE TUBULAR SERVICES LLC | Water, Hazardous waste | — | 1 | $1,050 | No Violation Identified |
| KMB INVESTMENT PROPERTIES LLC - THE CHEMIN PROJECT | Water | — | — | — | No Violation Identified |
| LA FLUSHING & TESTING | Hazardous waste | — | — | — | No Violation Identified |
| LAFAYETTE CONSOLIDATED GOVERNMENT - GRAND HAVEN SUBDIVISION WWTP | Water | — | — | — | No Violation Identified |
| LAFAYETTE GENERAL URGENT CARE SUGAR MILL | Hazardous waste | — | — | — | No Violation Identified |
| LAFAYETTE UTILITES SYSTEMS- MILTON RIDGE ESTATES | Water | 1 | — | — | Violation Identified |
| LEGACY DIRECTIONAL DRILLING LLC - RENEGADE OIL TOOLS | Water | — | — | — | Violation Identified |
| LEGACY DIRECTIONAL DRILLING LLC- RENEGADE OIL TOOLS | Water | — | — | — | No Violation Identified |
| LEGACY DIRECTIONAL DRILLING LLC: LEGACY DIRECTIONAL DRILLING/RENEGADE OIL TOOLS | Water | — | — | — | No Violation Identified |
| LEGACY DIRECTIONAL DRILLING LLC: RENEGADE OIL TOOLS | Water | — | — | — | Violation Identified |
| LEVEL CONSTRUCTION & DEVELOPMENT LLC - BENSON GROVE | Water | — | — | — | No Violation Identified |
| LEVEL CONSTRUCTION & DEVELOPMENT LLC - CANEHAVEN | Water | — | — | — | No Violation Identified |
| LEVEL CONSTRUCTION & DEVELOPMENT LLC - CANEHAVEN | Water | — | — | — | No Violation Identified |
| LHVI FAMILY MEDICINE | Hazardous waste | — | — | — | No Violation Identified |
| LOURDES AFTER HOURS YOUNGSVILLE | Hazardous waste | — | — | — | No Violation Identified |
| M&A SAFETY SERVICES | Water | — | — | — | No Violation Identified |
| MACHINE SPECIALTY & MANUFACTURING INC. | Water | — | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC - FAIRWAY VILLAGE | Water | — | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC -HIGHLAND PLANTATION SUBDIVISION PH II | Water | 1 | 3 | $1,750 | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC -LEGACY ESTATES | Water | — | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC -WINDERMERE & SOUTHLAKE PLANTATION | Water | 1 | 1 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- CEDAR HILL SUBDIVISION STP | Water | 1 | — | — | Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- COACH HOUSE MANOR | Water | — | 1 | — | — |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- COUNTRY MEADOWS SUBDIVISION | Water | 3 | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- GARDEN HEIGHTS APARTMENTS | Water | 1 | 2 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- GUILLOT VILLAGE PHASE 1&2 WWTP | Water | 1 | 1 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- HABERSHAM SUBDIVISION | Water | 1 | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- LEGEND CREEK SUBDIVISION | Water | 1 | 2 | $115,000 | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- LIVE OAK ESTATES | Water | 1 | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- TWIN LAKES | Water | — | 1 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- WINDY HEIGHTS | Water | 1 | — | — | Significant Violation |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC- WINDY MEADOWS | Water | 1 | 1 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING CO., LLC.- CHARLIE'S CROSSING | Water | — | 1 | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - BEAU PARTERRE SUBDIVISION | Water | — | — | — | No Violation Identified |
| MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - COACH HOUSE MANOR | Water | 1 | — | — | Significant Violation |
| MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - FLANDER'S GARDEN SUBDIVISION | Water | 1 | 1 | — | No Violation Identified |
| MILLER & ASSOCIATES DEVELOPMENT CO., INC. - PARADISE PLAZA | Water | — | — | — | No Violation Identified |
| MUD CONTROL EQUIPMENT CORP | Water | — | — | — | No Violation Identified |
| MWD SERVICES INC | Hazardous waste | — | — | — | No Violation Identified |
| NATIONAL OILWELL DHT LP - NQL YOUNGSVILL | Air, Water | — | — | — | Unknown |
| QES WIRLEINE LLC | Water, Hazardous waste | — | — | — | No Violation Identified |
| QUALITY COMPANIES | Water, Hazardous waste | 1 | — | — | Significant Violation |
| RYDER TRUCK RENTAL INC - LC 1083 | Hazardous waste | — | — | — | No Violation Identified |
| S&C DEVELOPERS LLC & J&M LAND INVESTMENT LLC - BEAU MARAIS | Water | — | — | — | No Violation Identified |
| SCHLUMBERGER TECHNOLOGY CORP | Water, Hazardous waste | — | — | — | Violation Identified |
| SINGH PETRO SOLUTIONS LLC - GRAB N GEAUX | Water | — | — | — | Unknown |
| SOFIA & SOPHIA ENTERPRISES LLC - JIFFY JUNCTION #1 | Water | — | — | — | Unknown |
| SOIL EXCAVATION FACILITY | Water | — | — | — | No Violation Identified |
| SOUTHPARK PROPERTIES LLC - SOUTHPARK FLOORING | Water | — | — | — | No Violation Identified |
| SUGAR MILL POND INVESTORS, LLC - SUGAR MILL POND COTTAGES | Water | — | — | — | No Violation Identified |
| SUPER 1 FOODS 645 | Hazardous waste | — | — | — | No Violation Identified |
| TEXAS GAS TRANSMISSION LLC - YOUNGSVILLE | Hazardous waste | — | — | — | No Violation Identified |
| TEXAS GAS TRANSMISSION LLC - YOUNGSVILLE COMPRESSOR STATION | Air, Water | 2 | — | — | No Violation Identified |
| TIW CORP | Water, Hazardous waste | — | — | — | No Violation Identified |
| TOP SHELF SPORTS INC. | Water | — | — | — | No Violation Identified |
| VALSOURCE , LLC - YOUNGSVILLE LA | Water, Hazardous waste | — | — | — | No Violation Identified |
| VALVE SETTING 1204 | Hazardous waste | — | — | — | No Violation Identified |
| WALGREEN DRUG STORE 13761 | Hazardous waste | — | — | — | No Violation Identified |
| WALGREENS STORE 21561 | Hazardous waste | — | — | — | No Violation Identified |
| WHISPERING OAKS LODGE LLC | Water | — | — | — | Violation Identified |
| X-PRESS WHOLESALE AUTO | Water | — | — | — | No Violation Identified |
| YEARS TO GROW DAYCARE & YOUTH CAMP, INC. | Water | — | — | — | No Violation Identified |
| YOUNGSVILLE COMMUNITY CHURCH | Water | — | — | — | Unknown |
| YOUNGSVILLE MHP, LLC - YOUNGSVILLE ESTATES MHP | Water | — | 1 | $550 | No Violation Identified |
| YOUNGSVILLE VOLUNTEER FIRE DEPARTMENT INC. | Water | — | — | — | No Violation Identified |
| YOUNGSVILLE WASTEWATER TREATMENT FACILITY | Water | 2 | 2 | — | Violation Identified |