Clean Water Services & Washington County Department of Lnd Use and Transportation, NPDES Watershed-based Wastewater Discharge Permit

This permit is a clear example of the different factors regulators must specify when establishing trading as an option to meet standards under a waste discharge permit. Ratios and restrictions are specified for both temperature and biological oxygen demand (BOD). The permit also contains language allowing for other parameters to be traded and the process for establishing these trades. These types of permits are the bases upon which trading markets can be established in the US.