Passage Data · Check a report · Use it from your AI
Discharge permits in Maryland
392 active individual NPDES permits with limits in EPA's file of Oct 22, 2026.
By industry
Sewage treatment plants (163)
- AA CO DPW-Bureau of Utility Operations and City of Annapolis PWA MD0021814 · major
- Allegany County DPW - Util. Div. Flinstone WWTP MD0055620
- AMERICAN WATER OPERATIONS and MAINTENANCE, INC. MD0021717 · major
- Anne Arundel County DPW- Bureau of Utilities MD0069868 · major
- Allegany County Department of Public Works - Utilities Division MD0063878 · major
- Allegany County Dept. of Public Works - Utilities Division MD0060071
- Anne Arundel County DPW, Bureau of Utility Operations MD0021652 · major
- Anne Arundel County DPW, Bureau of Utility Operations MD0062596 · major
- Anne Arundel County Department of Public Works MD0059145
- Back River WWTP MD0021555 · major
- Betterton WWTP MD0020575
- Bloomington WWTP MD0060933
- BOARD of COUNTY COMMISSIONERS of CECIL COUNTY MD0024023
- Broadneck Water Reclamation Facility MD0021644 · major
- Broadwater WWTP MD0024350 · major
- Brunswick WWTP MD0020958 · major
- Baltimore City DPW MD0021601 · major
- Bureau of Utilities MD0066745
- Burgess and Commissioners of Middletown MD0024406
- Chesapeake Beach WWTP MD0020281 · major
- Chestertown WWTP MD0020010
- City of Aberdeen MD0021563 · major
- City of Bowie MD0021628 · major
- City of Cambridge MD0021636 · major
- Cox Creek WRF MD0021661 · major
- Cso Allegany County Frostburg MD0067423
- Cso Allegany County Lavale MD0067547
- Cso Alleghany County D.P.W. MD0067407
- Caroline County Board of Education MD0023621
- Carroll County DPW, Bureau of Utilities MD0065927
- Cecil County DPW MD0020796
- Cecil County Department of Public Works MD0052825
- Cecil County Dept. of Public Works MD0052027 · major
- Charles County Commissioners MD0055557
- City of Crisfield MD0020001 · major
- City of Fruitland MD0052990
- City of Hagerstown - Water and Sewer Department MD0021776 · major
- City of Havre de Grace MD0021750 · major
- City of Salisbury, Wastewater Treatment Branch MD0021571 · major
- Commissioners of Ridgely MD0020427
- Commissioners of Sharptown MD0052175
- Commissioners of Sudlersville MD0020559
- Discovery National, LLC WWTP MD0023710
- Easton Utilities MD0020273 · major
- Emmitsburg WWTP MD0020257
- Federalsburg WWTP MD0020249
- Fountaindale WWTP MD0022721
- Frederick County Div. of Utilities and Solid Waste MD0021822 · major
- Freedom District WWTP MD0021512 · major
- Friendsville WWTP MD0021083
- Funkstown WWTP MD0020362
- Foxville Garden WWTP MD0025119
- Frederick County Division of Utilities & Solid Waste Management MD0025089
- Frederick County Division of Utilities and Solid Waste Management MD0020737
- Garrett County Sanitary District, Inc. MD0054348 · major
- Garrett County Sanitary District, Inc. MD0069418
- Greenbrier State Park WWTP MD0023868
- Garret County Sanitary District, Inc. - Dept. of Public Utilities MD0060950
- Garrett County Department of Public Utilities MD0051497
- Garrett County Sanitary District, Inc. MD0052281
- Garrett County Sanitary District, Inc. - Dept. of Public Utilities MD0060941
- Grantsville, Town of MD0020761
- Hampstead WWTP MD0022446
- Harford County DPW (Sod Run WWTP) MD0056545 · major
- Harford County DPW - Joppatowne WWTP MD0022535
- Harford County Department of Public Works (Spring Meadows WWTP) MD0024953
- Howard County Department of Public Works MD0055174 · major
- Kennedyville WWTP MD0052671
- Kunzang Odsal Palyul Changchub Choling (KPC) WWTP MD0067539
- Kent county Dept. of Water & Wastewater Services MD0020303
- La Plata WWTP MD0020524 · major
- Leonardtown WWTP MD0024767 · major
- Little Orleans Campground WWTP MD0062375
- Marley-Taylor W.R.F. MD0021679 · major
- Maryland Environmental Service MD0023949
- Maryland Water Service, Inc. MD0022748
- Mattawoman WWTP MD0021865 · major
- MAYOR and COUNCIL OF MANCHESTER MD0022578
- Meadowview WWTP MD0022641
- Mill Bottom WWTP MD0065439
- Millington WWTP MD0020435
- MT. Airy WWTP MD0022527 · major
- MT. Carmel Woods WWTP MD0053228
- Myersville WWTP MD0020699
- Maryland Environmental Service MD0023906
- Maryland Environmental Service MD0023922
- Maryland Environmental Service MD0023931
- Maryland Environmental Service MD0062821
- Maryland Environmental Service (MES) MD0063207 · major
- Maryland Environmental Service - ELK NECK STATE PARK WWTP MD0023833
- Maryland Environmental Service, Water/Watewater Division MD0067903
- Maryland Management Company, Inc. MD0022926
- Mayor and City of Cumberland MD0021598 · major
- Mayor and Council of Town of Hurlock MD0022730 · major
- Mayor and Town Council of Oakland MD0020648
- Oldtown WWTP MD0024759
- Pleasant Branch WWTP MD0065269
- Point of Rocks WWTP MD0020800
- Preston WWTP MD0020621
- Pocomoke City MD0022551 · major
- Queen Anne's County Dept of Public Works MD0023485 · major
- Rising Sun WWTP MD0020265
- Rocky Gap State Park WWTP MD0051667
- Rawlings Improvement Association, Inc. MD0023213
- SHA - Maryland Department of Transportation MD0023680
- Swan Point MD0057525
- Somerset County Sanitary District, Inc. MD0020656 · major
- Somerset County Sanitary District, Inc. MD0052230
- Taneytown WWTP MD0020672 · major
- Thurmont WWTP MD0021121 · major
- Tolchester WWTP MD0067202
- Town of Delmar MD0020532
- Town of Denton MD0020494
- Town of Indian Head WWTP MD0020052
- Town of Vienna WWTP MD0020664
- Town of Westernport MD0067384
- Town of Willards MD0051632
- Trappe WWTP MD0020486
- Twin Cities WWTP MD0055352
- Talbot County Department of Public Works MD0059463
- Talbot County Government Department of Public Works MD0023604
- The City of Frederick MD0021610 · major
- The Mayor and Commissioners of Perryville MD0020613 · major
- The Mayor and Town Council of Galena MD0020605
- The Town Of Elkton MD0020681 · major
- The Town of CHURCH HILL MD0050016
- The Town of Clear Spring MD0053325
- The Town of Ocean City MD0020044 · major
- Town Of Greensboro MD0071269
- Town of Accident MD0051721
- Town of Boonsboro MD0020231
- Town of CHESAPEAKE CITY North MD0020401
- Town of Cecilton WWTP MD0020443
- Town of Centreville MD0020834
- Town of Hancock MD0024562
- Town of Hebron MD0059617
- Town of Middletown - East MD0067628
- Town of New Windsor MD0022586
- Town of OXFORD WWTP MD0022543
- Town of Pittsville Commissioners MD0060348
- Town of Poolesville MD0023001
- Town of Queenstown MD0023370
- Town of Snow Hill MD0022764
- U.S Army Corps of Engineers MD0020206
- U.S. Fish & Wildlife Service, Patuxent Research Refuge MD0065358
- Union Bridge WWTP MD0022454
- University of Maryland, Baltimore MD0054950
- Upper Potomac River Commission MD0021687 · major
- Washington Suburban Sanitary Commission MD0021725 · major
- Washington Suburban Sanitary Commission - WSSC MD0021491 · major
- Washington Suburban Sanitary Commission - WSSC MD0021539 · major
- Westminster WWTP MD0021831 · major
- Woodsboro WWTP MD0058661
- Worton-Butlertown WWTP MD0060585
- Washington County Department of Water Quality MD0003221
- Washington County Department of Water Quality MD0024317
- Washington County Department of Water Quality MD0062308
- Washington County Department of Water Quality MD0063509 · major
- Washington County Department of Water Quality MD0064530
- Washington Suburban Sanitary Commission - WSSC MD0020982 · major
- Washington Suburban Sanitary Commission - WSSC MD0021741 · major
- Washington Suburban Sanitary Commission - WSSC MD0067768
- Worcester County Dept. of Pubic Works, Water/Wastewater Division MD0023477 · major
Industrial and other (229)
- Aes Warrior Run, Incorporated MD0066079 · Electric Services
- Allegany County DPW, Utilities Division MD0070530
- American Sugar Refining,Inc. MD0001341 · major · Cane Sugar Refining
- Aberdeen Proving Ground, Aberdeen Area WWTP MD0021237 · major · National Security
- Allegany Department of Public Works - Utilities Division MD0068896 · Nonresidential Building Operators
- Anne Arundel County Public Schools MD0069582 · Elementary And Secondary Schools
- Backbone Mountain,LLC. MD0068811 · Bituminous Coal - Underground
- Baltimore Country Club at Five Farms MD0068888 · Membership Sports & Recreation Clubs
- Baltimore County DPW, Uitl. Div. MD0022713
- Bel Alton WWTP MD0050334 · Apartment Building Operators
- Bitumar U S A,Inc. MD0068381 · Petroleum Bulk Stations & Terminals
- Blueknight Energy Partners MD0064556 · Special Warehousing And Storage
- Board of Education of Charles County MD0023175 · Elementary And Secondary Schools
- Boones Estate MHC, LLC MD0050903 · Trailer Parks And Campsites
- Broadfording Bible Brethren CH MD0051373 · Religious Organizations
- Brook Lane Psychiatric Center MD0053198 · Psychiatric Hospitals
- BROOKFIELD RENEWABLE POWER, PINEY and DEEP CREEK, LLC MD0059064 · Electric Services
- BTR Hampstead,LLC. MD0001881 · General Warehousing And Storage
- BTR-5200, LLC MD0024635 · Paper Industries Machinery
- Building Materials Corporation of America MD0001988 · Asphalt Felts And Coatings
- Bwi Sparrows Point, LLC MD0001180 · Ship Building And Repairing
- Baltimore County DPW MD0063924 · Refuse Systems
- Calvert Cliffs Nuc. Power Plant, LLC MD0002399 · major · Electric Services
- Cambridge, Inc. MD0067458 · Miscellaneous Fabricated Wire Products
- Camp Shadowbrook MD0053139 · Sporting And Recreational Camps
- Cargill, Inc. - Salt Division MD0060437 · Chemicals & Allied Products
- Cedar Ridge Ministries MD0067881 · Residential Care
- Center Point Terminal Company,LLC MD0024716 · Special Warehousing And Storage
- CENTER POINT TERMINAL Company MD0055565 · Petroleum Bulk Stations & Terminals
- Chesapeake College WWTP MD0024384 · Junior Colleges
- Chopticon High School MD0051918 · Elementary And Secondary Schools
- Citgo Petroleum Corporation MD0001929 · Petroleum Bulk Stations & Terminals
- City of Hagerstown Water Dept. MD0003484 · Water Supply
- City of Havre De Grace WTP MD0069710 · Water Supply
- CNX Marine Terminals, Inc. MD0055824 · Coal And Other Minerals And Ores
- College of Southern Maryland MD0052311 · Colleges And Universities
- Colonial Pipeline Company MD0057886 · Refined Petroleum Pipelines
- Colonial Pipeline Company MD0060968 · Petroleum Products
- Congoleum Corporation MD0001384 · major · Hard Surface Floor Coverings
- Constellation Energy Generation, LLC MD0002518 · major · Electric Services
- Cranberry Water Treatment PLT. MD0067644 · Water Supply
- Cypress Realty Investments, LLC MD0071790 · Residential Construction
- Calvert County Board of Education MD0052167 · Elementary And Secondary Schools
- Caroline County Board of Education MD0055522 · Elementary And Secondary Schools
- Carroll County Government Bureau of Utilities MD0067652 · Water Supply
- Charles County Board of Education MD0023451 · Elementary And Secondary Schools
- Cinnamon Woods Waste Water Treatment Plant MD0069949
- City of Baltimore Department of Public Works MD0003034 · Water Supply
- City of Frostburg MD0063487 · Water Supply
- City of Hagerstown Water Department MD0067741 · Water Supply
- Concord Mobile Home Park Wastewater Treatment Plant MD0023060 · Trailer Parks And Campsites
- Concrete General Inc MD0072214
- Constellation Power Source Generation, LLC MD0068993 · Construction Sand And Gravel
- Council of Unit Owners of Park Place, A Condominium MD0068861 · Excavation Work
- Department of the Navy - Nas P MD0020150 · National Security
- Dept of Natural Resources, Fisheries Service MD0055743 · Animal Aquaculture
- Dominion Cove Point LNG, LP MD0063975 · Gas Production And/Or Distribution
- Dundalk Marine Terminal MD0066818 · Marine Cargo Handling
- Darling Ingredients - Linkwood MD0003247 · Animal And Marine Fats And Oils
- Deale Aquaculture Farm, Inc. MD0071986
- Department of Army MD0021229 · major · National Security
- Department of Homeland Security, Federal Emergency Management Agency MD0025666 · Public Order And Safety
- Department of public works MD0023876 · Correctional Institutions
- Department of the Army, US Army Garrison Ft. Detrick MD0020877 · major · National Security
- Department of the Navy, Washington Navy Yard MD0003051 · National Security
- Dept. of the Navy, NAVAL SUPPORT FACILITY, INDIAN HEAD MD0003158 · major · Ammunition, Except For Small Arms
- Eastern Correctional Institute MD0066613 · Correctional Institutions
- Easton Utilities Commission MD0022772 · Electric Services
- Edgemeade Road Re., LLC MD0052680 · Schools & Educational Services
- Elk Ridge WTP MD0067962 · Water Supply
- Emersub 16, LLC MD0069094 · Power Transmission Equipment
- Eastman Specialties Corporation MD0000345 · major · Industrial Organic Chemicals
- Environmental Management & Industrial Hygiene, WMATA MD0069774 · Local And Suburban Transit
- Epping Forest, Incorporated MD0071650
- Evonik Corporation MD0000531 · Industrial Inorganic Chemicals
- Fahrney-Keedy Memorial Home MD0053066 · Apartment Building Operators
- Ferry Cove Project LLC - Oyster Nursery MD0072168
- Frederick County Div of Utilities and Solid Waste MGMT. MD0022683
- Forest Green Court Mobile Home Park Wastewater Treatment Plant MD0053279 · Trailer Parks And Campsites
- General Electric Company MD0067938 · Household Cooking Equipment
- Grace Davison-Curtis Bay MD0000311 · major · Industrial Inorganic Chemicals
- Great Oak Landing Limited Part MD0024945 · Marinas
- Green Ridge Youth Camp WWTP MD0024988 · Correctional Institutions
- Garrett County Board of Education MD0024449 · Elementary And Secondary Schools
- GenOn - Mid-Atlantic, LLC (MORGANTOWN STATION) MD0002674 · major · Electric Services
- GenOn Chalk Point, LLC MD0002658 · major · Electric Services
- GenOn MD Ash Management, LLC MD0057584 · Refuse Systems
- GenOn Maryland Ash Management, LLC MD0056928 · Refuse Systems
- GenOn Mid-Atlantic, LLC MD0054836 · Refuse Systems
- H & H Storage LTD. MD0020028 · Crop Preparation Services For Market
- Happy Hills Campground WWTP MD0065757 · Trailer Parks And Campsites
- Harford County Dept of Public Works - Tollgate Landfill MD0065765 · Refuse Systems
- Harford County Public Schools Hickory Annex MD0070696 · Elementary And Secondary Schools
- Harwood Landfill, Inc. MD0066087 · Refuse Systems
- Hess Corporation MD0001767 · Petroleum Bulk Stations & Terminals
- Highland View Academy, Inc. MD0024627 · Elementary And Secondary Schools
- Holiday Mobile Estate, Inc. MD0053082 · Trailer Parks And Campsites
- HOMESTEAD MHP, LLC c/o PINKARD PROPERTIES, LLC MD0053171 · Trailer Parks And Campsites
- Hoopers Island Oyster Company MD0072028 · Fish Hatcheries And Preserves
- Howard County DPW MD0067865 · Refuse Systems
- Howard County DPW MD0068039 · Refuse Systems
- Hawkins Landfill MD0066206 · Refuse Systems
- Holcim (US) Inc. MD0002151 · Cement, Hydraulic
- Homestead Mobile Estates WWTP MD0024961 · Trailer Parks And Campsites
- Howard County DPW, Bureau of Environment Service MD0067873 · Refuse Systems
- International Monetary Fund - Bretton Woods Rec. Ctr. MD0064777 · Amusement And Recreation
- JHMI Utilities, LLC - Johns Hopkins Hospital MD0071196 · Steam And Air-Conditioning Supply
- John W.Ritter Trucking,Inc. MD0068713 · Local Trucking, Without Storage
- Jones Estates Bay County II, LLC MD0071552
- Kelly Foods Corporation, Inc. MD0001309 · Dog And Cat Food
- Kinder Morgan Phoenex, LLC MD0000396 · Petroleum Bulk Stations & Terminals
- Kent County Dept of Public Works MD0070751
- Kiewit Infrastructure Co. MD0068489
- Landsman, LLC. MD0023272 · Mobile Home Site Operators
- Lehigh Cement Company MD0000779 · Cement, Hydraulic
- Lewistown WWTP MD0022900 · Elementary And Secondary Schools
- Lockheed Martin Corporation MD0071773 · Nonclassifiable Establishments
- Lyons Creek MHC, LLC MD0053511 · Trailer Parks And Campsites
- Lakeshore Management, INC MD0024546 · Mobile Home Site Operators
- Lanco=Pennland MD0063592 · Cheese, Natural And Processed
- Legacy Enterprises LLC MD0057487 · Trailer Parks And Campsites
- Linde Incorporated MD0054101 · Industrial Gases
- Maryland Aviation Adminstration MD0063371 · Airports, Flying Fields, & Services
- Maryland Correctional Institution MD0023957 · major · Correctional Institutions
- Maryland Environmental Service MD0065111
- Maryland Mobile Estates, LLC MD0024333 · Trailer Parks And Campsites
- Maryland Port Administration MDDRG3890
- MD Department of Natural Resources MD0054054 · Fish Hatcheries And Preserves
- MD-Sha - Greenhill Cove WWTP MD0063916 · Refuse Systems
- MD. & Virginia Milk Prod.Coop. MD0000469 · Dry, Condensed, Evaporated Products
- MDTA Port Administration- Hawkins Point MD0001261 · Inorganic Pigments
- Mettiki Coal,LLC MD0055182 · major · Bituminous Coal And Lignite - Surface
- Midlothian Water Company MD0066958 · Water Supply
- Mobile Realty 2, LLC MD0071374
- Montebello W.T.P. MD0003042 · Water Supply
- Morning Cheer,Inc./Sandy Cove Ministries MD0052299 · Sporting And Recreational Camps
- Motiva Enterprises, LLC MD0000744 · Petroleum Bulk Stations & Terminals
- Motiva Enterprises, LLC. MD0001082 · Petroleum Bulk Stations & Terminals
- Mount ST.Marys College MD0023230 · Noncommercial Research Organizations
- Msu -Estuarine Research Center MD0003093 · Noncommercial Research Organizations
- Maryland Department of Natural Resources MD0051624 · Fish Hatcheries And Preserves
- Maryland Environmental Service MD0023981 · Amusement And Recreation
- Maryland Environmental Service MD0062073 · Scrap And Waste Materials
- Maryland State Highway Administation MD0069680 · Repair Services
- Montgomery County Government, Department of General Services MD0068195 · Nonresidential Building Operators
- Nasa - Goddard Space Flight Center MD0067482 · Space Research And Technology
- National Aquarium in Baltimore MD0059676 · Botanical And Zoological Gardens
- National Institutes of Health MD0020931 · Noncommercial Research Organizations
- National Institutes of Health MD0025496 · Admin. Of Public Health Programs
- Naval Research Laboratory MD0020168 · National Security
- Naval Suport Facility Indian Head MD0020885 · General Government
- NB Swan Harbor, LLC MD0023043 · Trailer Parks And Campsites
- New Design Road W.T.P. MD0061841 · Water Supply
- New Life Four Square Church MD0057100 · Religious Organizations
- Nextcar Baltimore National Pike MD0072061
- North Harford JR/SR/H.S. WWTP MD0023281 · Elementary And Secondary Schools
- Northeast MD Waste Disposal MD0065447 · Refuse Systems
- Northrop Grumman Systems Corporation, Elkton MD0000078 · Space Propulsion Units And Parts
- National Park Service, Assateague Island National Seashore MD0021091 · Land, Mineral, Wildlife Conservation
- Naval Support Activity (NSA) Annapolis MD0023523 · General Government
- Northrop Grumman Systems Corporation MD0072222
- OCEAN CITY LIMITED PARTNERSHIP c/o CORDISH COMPANY MD0071161 · Department Stores
- Old Dominion Electric Cooperative MD0071901
- Old South Mountain Inn WWTP MD0055425 · Eating Places
- Petroleum Fuel and Terminal Co MD0024708 · Petroleum Bulk Stations & Terminals
- Petroleum Fuel and Terminal Co MD0057673 · Petroleum Bulk Stations & Terminals
- Potomac River W.R.F. MD0051586 · Water Supply
- Parkway Generation Keys Energy Center, LLC MD0072079
- Patuxent MHC, LLC MD0024694 · Mobile Home Site Operators
- Patuxent River Utility Services, LLC MD0020095 · National Security
- Perdue Farms, Inc. MD0000060 · major · Prepared Feeds
- Piney Point Aquaculture Center MD0063843 · Fish Hatcheries And Preserves
- Presbyterian Senior Living Services, Inc. MD0022951 · Noncommercial Research Organizations
- Raven Power Holdings LLC MD0001503 · major · Electric And Other Services Combined
- Rite of Passage, Inc. MD0067571 · Elementary And Secondary Schools
- Rosebud Mining Company MD0070629 · major · Bituminous Coal - Underground
- Rosebud Mining Company MD0072117
- Royall Farms Thurmont WWTP MD0058050 · Eating Places
- S.E.W. Friel Wye Mills MD0000043 · Canned Fruits And Vegetables
- Sha Lake Louise Acid Leachate MD0056341 · Refuse Systems
- Sherwin Williams Company MD0001295 · Paints And Allied Products
- Shuff's Meat Market, Inc. MD0050245 · Meat Packing Plants
- Smithsonian Environmental Research Center MD0070327 · Noncommercial Research Organizations
- Southern Carroll H.S. WWTP MD0024589 · Elementary And Secondary Schools
- Southern MD. Pre-Release Unit MD0023914 · Correctional Institutions
- Southern Senior High School MD0023728 · Elementary And Secondary Schools
- Sparrows Point, LLC MD0001201 · major · Blast Furnaces And Steel Mills
- Springview M.Home Park WWTP MD0022870 · Trailer Parks And Campsites
- Stoner Quality Water, Inc. MD0020818 · Business Services
- SUNOCO PARTNERS MARKETING and TERMINALS L.P. MD0000736 · Petroleum Bulk Stations & Terminals
- Swallow Falls State Park WWTP MD0052850 · Amusement And Recreation
- Sheppard Pratt Health Care System - The Jefferson School MD0067521 · Health And Allied Services
- Spring Garden Steam Plant MD0061930 · Steam And Air-Conditioning Supply
- Stevenson University WWTP MD0066001 · Junior Colleges
- Sunoco, LLC MD0062278 · Special Warehousing And Storage
- Sysco Eastern Maryland, L.L.C. MD0069744 · Groceries And Related Products
- Teledyne Energy Systems,Inc. MD0065901 · General Industrial Machinery
- Town of Clear Spring WTF MD0069132 · Water Supply
- Town of Grantsville MD0063274 · Water Supply
- Trans-Tech,Inc. MD0058611 · major · Electronic Components
- Targa Terminals, LLC MD0001449 · Brick, Stone, & Related Materials
- The Benedictine School for Exceptional Children Wastewater Treatment Plant MD3893F24
- The MUSHROOM COMPANY MD0069019 · Canned Fruits And Vegetables
- The Town of Oakland MD0071307
- The William Schneider Company, Inc. MD0022845 · Apartment Building Operators
- Town of Emmitsburg MD0062391 · Water Supply
- Town of Vienna MD0059471 · Water Supply
- U.S. Army Garrison A.P.G. MD0003565 · National Security
- U.S. Army Corps of Engineers - Baltimore District Washington Aqueduct MD0068161
- U.S. Coast Guard - Baltimore Y MD0067300 · Ship Building And Repairing
- U.S. Department of Agriculture, Agricultural Research Service MD0020842 · Noncommercial Research Organizations
- U.S. Dept of Agriculture-USDA-ARS-FMOD-USS MD0020851 · Noncommercial Research Organizations
- United States Gypsum Company MD0001457 · Gypsum Products
- Univ. MD. Chesapk. Biol. Lab MD0061051 · Noncommercial Research Organizations
- University of Maryland, CTR. F MD0051403 · Noncommercial Research Organizations
- United States Dept of Commerce, NOAA, NOS, Cooperative Oxford Laboratory MD0071030 · Medical Laboratories
- University Of Maryland College Park, Department of Environmental Safety MD0063801 · Colleges And Universities
- Vidhi Alexandria, LLC MD0053155 · Hotels And Motels
- Vienna Power LLC MD0000094 · major · Electric Services
- Vibrantz Specialty Products, LLC MD0001775 · major · Industrial Inorganic Chemicals
- W.M.A.T.A.- Red Line P.S. MD0069035 · Local And Suburban Transit
- Wayson's Mobile Court WWTP MD0023647 · Trailer Parks And Campsites
- Wheelabrator Baltimore, L.P. MD0060640 · Refuse Systems
- Woodlawn Estates, LLC MD0023337 · Mobile Home Site Operators
- WRF Group MD0071960
- Washington County Department of Water Quality MD0067784 · Water Supply
- Wicomico County Board of Education MD0024279 · Elementary And Secondary Schools
- Worcester County Department of Public Works, Water/Wastewater Division MD0066923 · Water Supply
- Yara Baltimore Liquid Terminal MD0071838
Source: EPA ECHO, Oct 22, 2026. As JSON: /api/v1/permits?state=MD · MCP: https://passage-data.com/mcp · All states