Feasibility Analysis for EPA's Draft Great Bay Total Nitrogen General Permit
in Dover, Durham, Epping, Exeter, Newfields, Newington, Newmarket, Portsmouth, Rochester, Rollinsford, Somersworth, NH and Berwick, Kittery, North Berwick, and South Berwick, ME.
A recent report prepared by Dr. Robert Roseen, Waterstone Engineering, PLLC, commissioned by the Conservation Law Foundation has been published to determine the feasibility and cost for regulated communities in the Great Bay watershed to implement the optional non-point source and stormwater point source nitrogen pathway outlined in EPA's draft Great Bay Total Nitrogen General Permit (NDPDES Permit No. NHG58A000 published in Federal Register January 7, 2020). Feasibility was evaluated for a community's ability to reduce non-point source and stormwater-derived nitrogen by 45% over four 5-year permit periods. This study represents one scenario of many possible pathways and encourages communities to implement innovative nutrient control strategies including a combination of non-structural and low-cost best management practices in addition to more conventional strategies in order to achieve reduction targets.
Feasibility Analysis for EPA's Draft Great Bay Total Nitrogen General Permit (download)