Many documents linked on this webpage are guidance provided by the U.S. EPA.  In the event of any disagreement between EPA guidance and Maryland's General Permit for Discharges of Stormwater Associated with Industrial Activities, the Maryland permit language takes precedence.​

Guidance

• EPA Annual Reporting Template
• EPA Industrial SWPPP Guide
• EPA Monitoring Guide
• EPA Aluminum Criteria Calculator​ (macro-enabled Excel file)
  
• Erosion and Sediment Control Handbook
  

EPA Sector Guidance

• Sector A:  Timber Products
• Sector AA:  Fabricated Metal
• Sector AB:  Transportation Equipment, Industrial or Commerical Machinery
• Sector AC:  Electronic and Electrical Equipment and Components, Photograpic and Optical Goods
• Sector B:  Paper and Allied Products
• Sector C:  Chemical and Allied Products Manufacturing and Refining​
• Sector D:  Asphalt Paving and Roofing Materials
• Sector E:  Glass, Clay, Cement, Concrete and Gypsum Products
• Sector F:  Primary Metals
• Sector I:  Oil and Gas Extraction
• Sector K:  Hazardous Waste Treatment, Storage or Disposal
• Sector L:  Landfills and Land Application
• Sector M:  Automobile Salvage Yards
• Sector N:  Scrap and Waste Recycling
• Sector O:  Steam Electric Power Generating Facilities, Including Coal Handling Areas
• Sector P:  Motor Freight Transportation Facilities, Passenger Transportation Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation Facilities, and United States Postal Service Transportation Facilities
• Sector Q:  Water Transportation Facilities with Vehicle Maintenance Shops and/or Equipment Cleaning Operations
• Sector R:  Ship and Boat Building or Repair Yards
• Sector S:  Vehicle Maintenance Areas, Equipment Cleaning Areas or Deicing Areas Located at Air Transportation Facilities
• Sector T:  Treatment Works
• Sector U:  Food and Kindred Products
• Sector V:  Textile Mills, Apparel and Other Fabric Product Manufacturing
• Sector W:  Wood and Metal Furniture
• Sector X:  Printing and Publishing Facilities
• Sector Y:  Rubber and Miscellaneous Plastic Products
• Sector Z:  Leather Tanning and Finishing Facilities

Additional Information and Related Links

• Wastewater Permits