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Institution
Collection
Format
Subject
Water quality
8
Nutrient pollution of water
6
Agriculture Environmental aspects
4
Streamflow Computer simulation
3
Agricultural pollution
2
Groundwater
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2
Stream conservation
1
Agricultural chemicals Environmental aspects
1
Carbonate rocks
1
Mill Creek Watershed (Lancaster County, Pa.)
1
Muddy Run Watershed (Lancaster County, Pa.)
1
Streamflow
1
Terracing
1
Water quality management
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Author
Pennsylvania. Department of Environmental Protection
13
Geological Survey (U.S.)
7
Koerkle, Edward H.
4
Delaware River Basin Commission
4
Delaware. Department of Natural Resources and Environmental Control
4
Geological Survey (U.S.),
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4
Senior, Lisa A.
3
Koerkle, Edward H.,
3
Lietman, Patricia L.
2
Galeone, Daniel G.
2
Hall, David W.
2
Hall, David W.,
2
Lietman, Patricia L.,
1
Chichester, Douglas C.
1
Gustafson-Minnich, Linda C.
1
Gustafson-Minnich, Linda C.,
1
Koerkle, Edward J.
1
Low, Dennis J.
1
United States. Consolidated Farm Service Agency
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Language
Literary Form
Region
15
Pennsylvania
9
Conestoga River Watershed
3
Lancaster County
2
Delaware
1
Brandywine Creek (Pa. and Del.)
1
Brandywine Creek Watershed (Pa. and Del.)
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1
Chester County
1
Maryland
1
Mill Creek Watershed (Lancaster County, Pa.)
1
Muddy Run Watershed (Lancaster County, Pa.)
1
New Castle County
1
United States
1
White Clay Creek (Pa. and Del.)
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Year of Publication