Trading and Offset Technical Memoranda for the Chesapeake Bay Watershed

To assist the Bay jurisdictions in strengthening their trading and offset programs, EPA is developing a series of technical memoranda. Bay jurisdictions include Delaware, Maryland, New York, Pennsyvlania, Virginia, West Virginia and the District of Columbia. The memoranda will also provide EPA, the jurisdictions with a framework for determining whether trading and offset program elements meet EPA expectations. To view the memoranda, please click on the links below.

• Establishing Offset and Trading Baselines in the Chesapeake Bay Watershed - EPA Technical Memorandum (pdf) (544.79 KB)
• Net Improvement Offsets for New or Increased Loads - EPA Technical Memorandum (pdf) (416.32 KB)
• Sector Load Growth Demonstration (pdf) (194.59 KB)
• Accounting for Uncertainty in Offset and Trading (pdf) (571.71 KB)
• Local Water Quality Protection when Using Credits for NPDES Permits (pdf) (179.04 KB)
• Evaluation of Sampling Variability in Chesapeake Bay Wastewater (pdf) (590.13 KB)
• Components of Credit Calculation (pdf) (2.13 MB)
• Permanence of Credits Used for NPDES Permit Issuance and Compliance (pdf) (948.67 KB)
• Certification and Verification of Offset and Trading Credits in the Chesapeake Bay Watershed (pdf) (873.61 KB)
• Discussion Paper: Considerations for Interstate Trading and Offsets in the Chesapeake Bay Watershed (pdf) (937.81 KB, 08-21-2017)