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Institution
Subject
Water quality
19
Groundwater
12
Aquifers
11
Groundwater Quality
9
Lakes
8
Hydrogeology
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7
Groundwater Pollution
7
Water-supply
6
Groundwater flow
6
Runoff
4
Water Pollution
3
Agricultural pollution
3
Stream measurements
3
Water quality biological assessment
2
Agricultural chemicals Environmental aspects
2
Agriculture Environmental aspects
2
Drift
2
Fishes Habitat
2
Flood control Environmental aspects
2
Freshwater invertebrates
2
Hydrology
2
Land use Environmental aspects
2
Minnesota River (S.D. and Minn.)
2
Mississippi River
2
Rain and rainfall
2
Rivers
2
Tailings (Metallurgy) Environmental aspects
2
Urbanization Environmental aspects
2
Voyageurs National Park (Minn.)
2
Water Composition
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Author
51
Geological Survey (U.S.),
49
Geological Survey (U.S.)
20
National Water-Quality Assessment Program (U.S.)
14
United States. Environmental Protection Agency
12
Minnesota. Department of Natural Resources
11
Tornes, L. H.
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9
Wolf, R. J.
8
Have, M. R.
8
Ruhl, J. F.,
7
Andrews, William J., 1962-
7
Ruhl, J. F.
7
United States. Army. Corps of Engineers
6
Minnesota Pollution Control Agency
5
Adolphson, D. G. 1928-1990,
5
Grand Portage Band of Chippewa Indians
5
Lee, K. E.
5
Payne, G. A.,
4
Adolphson, D. G. 1928-1990
4
Ayers, M. A.
4
Brown, R. G.
4
Goldstein, Robert M.,
4
Metropolitan Council of the Twin Cities Area
4
Payne, G. A.
3
Anderson, H. W.
3
Cowdery, T. K.
3
Kroening, Sharon E.
3
Kroening, Sharon E.,
3
Minnesota. Division of Waters
3
Minnesota. Legislature. Legislative Commission on Minnesota Resources
3
Stark, James R.,
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Language
Literary Form
Region
Minnesota
13
Mississippi River Watershed
13
Wisconsin
6
Grand Portage Reservation
5
Minneapolis Metropolitan Area
5
Saint Paul Metropolitan Area
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4
Iowa
4
North Dakota
4
Red River of the North Watershed
3
Minneapolis Region
3
South Dakota
3
Voyageurs National Park
2
Anoka County
2
Apple Valley
2
Carver County
2
Dakota County
2
Keewatin Region
2
Lakeville
2
Minnesota River (S.D. and Minn.)
2
Mississippi River
2
Prairie Island Indian Reservation
2
Princeton
2
Princeton Region
2
Voyageurs National Park (Minn.)
1
Albert Lea Region
1
Anoka Region
1
Belgrade
1
Belgrade Region
1
Breckenridge Region
1
Brooten
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Year of Publication