NH DES Great Bay Nitrogen Non-Point Source Study ReleasedSummary: Summary from PREP Special Partner Focus Email:
The Great Bay Estuary is 21 square miles of tidal waters located in southeastern New Hampshire. It is one of 28 "estuaries of national significance" established under the Environmental Protection Agency's National Estuary Program. The estuary is experiencing the signs of eutrophication, specifically, low dissolved oxygen, macroalgae blooms, and declining eelgrass habitat.
Sixty-eight percent of the nitrogen that ends up in the Great Bay Estuary originates from sources spread across the watershed; the remainder derives from direct discharges of municipal wastewater treatment facilities. These diffuse sources of nitrogen are called non-point sources and consist of atmospheric deposition, fertilizers, human waste disposed into septic systems, and animal waste. The New Hampshire Department of Environmental Services (DES) has been researching how much nitrogen each of these non-point sources contributes to the estuary. The results of this work are summarized in a report called the Great Bay Nitrogen Non-Point Source Study.
Date posted: Thu, Jul 10th, 2014 12:00 am
Link to full notice : /noticesDetail.php?174Download gbnnpss-report.pdf