The National Lakes Assessment (NLA), administered by the U.S. EPA, is a statistical survey of the condition of our nation's lakes, ponds, and reservoirs. It is designed to provide information on the extent of lakes that support healthy biological condition and recreation, estimate how widespread major stressors are that impact lake quality, and provide insight into whether lakes nationwide are getting cleaner. The Limnology Lab is contracted by IDEM to perform the surveys of Indiana’s lakes.
