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Title: Nitrogen in Minnesota Surface Waters: Conditions, trends, sources, and reductions

Author: Minnesota Pollution Control Agency

Published: June 2013

About: This report was prepared by the Minnesota Pollution Control Agency in collaboration with the U.S. Geological Survey and the University of Minnesota.  It is a comprehensive look at nitrogen in Minnesota lakes and streams: how much is here, where it comes from, how levels have changed through time, and how we might reduce nitrogen in our surface waters.

Download: Click here to download the report