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GLRPPR Sector Resource: Water Quality Trading Toolkit for Permit Writers

Water Quality Trading Toolkit for Permit Writers

The Water Quality Trading Toolkit for Permit Writers is EPA's first "how-to" manual on designing and implementing water quality trading programs. The Toolkit helps National Pollutant Discharge Elimination System (NPDES) permitting authorities incorporate trading provisions into permits. It will help improve the quality and consistency of all trading programs across the nation. This new guide will provide stakeholders with detailed guidance on the fundamental concepts of trading which can accelerate water quality improvement and reduce compliance costs. Water quality trading is a voluntary option that regulated point sources can use to meet requirements under the Clean Water Act. The toolkit provides permitting authorities with the tools they need to incorporate trading provisions into required permits. The guide is focused on trading nitrogen and phosphorus, but other pollutants may be considered for trading on a case-by-case basis. The Toolkit discusses the fundamental concepts of designing and implementing trading programs including the relevant geographic scope, effluent limitations and other factors involved in defining a credit. The document also includes a set of appendices which feature detailed case studies based on actual trading programs.


U.S. Environmental Protection Agency (EPA)

Resource Type:

Date of Publication:
June 2009

Associated Sectors:

GLRPPR is a member of the Pollution Prevention Resource Exchange, a national network of regional information centers: NEWMOA (Northeast), WRRC (Southeast), GLRPPR (Great Lakes), ZeroWasteNet (Southwest), P2RIC (Plains), Peaks to Prairies (Mountain), WSPPN (Pacific Southwest), PPRC (Northwest).


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