Update! The 2016 303(d) Impaired Waters List Receives EPA Partial Approval

EPA has partially approved New Hampshire’s 2016 303(d) list of impaired waters. However, there are some exceptions!  See info and maps below.

EPA’s cover letter and review of New Hampshire’s 2016 Section 303(d) List has been posted at: https://www.des.nh.gov/organization/divisions/water/wmb/swqa/2016/documents/2016-epa-part-app-20180622.pdf

“EPA hereby approves New Hampshire’s 2016 final section 303(d) list with the exception of the following: Little Bay, Bellamy River, Upper Piscataqua River, Portsmouth Harbor, Little Harbor/Back Channel and Great Bay assessment zones; and the Upper Portsmouth Harbor, Great Bay Prohib SZ2 and Great Bay-Cond Appr assessment units. EPA is deferring action on the State’s list with respect to this group of assessment zones and units until a later date when EPA’s review is completed.”

See the maps below for the area covered by the partial approval and the NHDES website for notice and 303(d) list information: https://www.des.nh.gov/organization/divisions/water/wmb/swqa/2016/index.htm.

Green = 2016 303(d) Approved Blue = Still under 2012 303(d) Approval

















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