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Region: Pennsylvania
Institution
Subject
85
Water quality
15
Nutrient pollution of water
11
Water quality Measurement
9
Groundwater Quality
9
Hydrogeology
8
Agriculture Environmental aspects
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8
Groundwater
8
Water quality biological assessment
7
Hydrology
7
Water quality management
7
Water-supply
6
Stream measurements
5
Coal mines and mining Environmental aspects
5
Streamflow
5
Water resources development
4
Agricultural pollution
4
Fertilizers Environmental aspects
3
Land use Environmental aspects
3
Rivers
3
Strip mining Environmental aspects
3
Terracing
3
Water Pollution
3
Wetlands
2
Acid mine drainage Environmental aspects
2
Acid pollution of rivers, lakes, etc
2
Acid precipitation (Meteorology) Environmental aspects
2
Environmental monitoring
2
Groundwater Pollution
2
Groundwater Sampling
2
Groundwater flow Measurement
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Author
63
Geological Survey (U.S.)
43
Geological Survey (U.S.),
23
Pennsylvania. Department of Environmental Protection
14
Chester County Water Resources Authority
9
Barker, James L., 1936-
8
Koerkle, Edward H.
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8
Reif, Andrew G.
7
Fishel, David K.
7
Susquehanna River Basin Commission
7
United States. Environmental Protection Agency
6
Fishel, David K.,
6
Pennsylvania. Department of Environmental Resources
6
Sloto, Ronald A.
6
Sloto, Ronald A.,
6
United States. National Park Service
5
Lietman, Patricia L.
4
Koerkle, Edward H.,
4
Langland, Michael J.
4
Pennsylvania. Bureau of Land and Water Conservation
4
Pennsylvania. Bureau of Mining and Reclamation
4
Pennsylvania. Bureau of State Parks
4
United States. Army. Corps of Engineers. Philadelphia District
3
Brightbill, Robin A.
3
Chesapeake Bay Program (U.S.)
3
Galeone, Daniel G.
3
Galeone, Daniel G.,
3
Kostelnik, Kevin M.
3
Langland, Michael J.,
3
Lietman, Patricia L.,
3
Pennsylvania. Bureau of Topographic and Geologic Survey
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Language
Genre
Literary Form
Region
Pennsylvania
17
Chester County
10
Conestoga River Watershed
6
United States
5
Susquehanna River, West Branch
4
Fayette County
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4
Lancaster County
4
Somerset County
3
Maryland
3
York County
2
Adams County
2
Delaware
2
Erie County
2
Indiana County
2
Lebanon County
2
Montgomery County
2
New York (State)
2
Oley (Township)
2
Schuylkill County
2
Susquehanna River
2
Susquehanna River Watershed
2
Susquehanna River, West Branch (Pa.)
2
Swatara Creek
2
Valley Forge National Historical Park
2
Wayne County
1
Allegheny County
1
Allegheny Portage Railroad National Historic Site
1
Allegheny River (Pa. and N.Y.)
1
Bald Eagle Creek Watershed (Blair County-Clinton County)
1
Bedford County
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Call Number
Year of Publication