Author
Geological Survey (U.S.)
18
Geological Survey (U.S.),
12
Stuckey, Marla H.
6
Pennsylvania. Department of Environmental Protection
5
Pennsylvania. Department of Environmental Resources
5
Pennsylvania. Department of Transportation
4
Reed, Lloyd A.
4
Susquehanna River Basin Commission
4
Durlin, Randall R.
3
Roland, Mark A.
3
White, Kirk E.
3
Chesapeake Bay Program (U.S.)
2
Fishel, David K.
2
Flippo, Herbert N.
2
Kostelnik, Kevin M.
2
Pennsylvania. Bureau of Mining and Reclamation
2
United States. Federal Emergency Management Agency
2
United States. Office of Surface Mining Reclamation and Enforcement
2
Behrendt, T. E.
1
Bingham, Donald L.,
1
Brua, Stan A.,
1
Chester County Water Resources Authority
1
Ehlke, Marla H.
1
Fishel, David K.,
1
Flippo, Herbert N.,
1
Geological Survey (U.S.). Water Resources Division
1
Geological Survey (U.S.). Water Resources Division,
1
Hittle, Elizabeth,
1
Langland, Michael J.
1
Langland, Michael J.,
1
Loper, Connie A.
1
Loper, Connie A.,
1
Pennsylvania State Association of Township Supervisors
1
Pennsylvania. Bureau of State Parks
1
Risser, Dennis W.,
1
Roland, Mark A.,
1
Schreffler, Curtis L.,
1
Sloto, Ronald A.
1
Sloto, Ronald A.,
1
Stuckey, Marla H.,
1
Truhlar, Mark V.
1
Truhlar, Mark V.,
1
United States. Army. Corps of Engineers. Philadelphia District
1
United States. Department of Homeland Security
1
United States. Federal Emergency Management Agency. Region III
1
Veilleux, Andrea G.,
1
Wagner, Daniel M.,
1
Ward, Janice R.,
1
Wetzel, Kim L.
1
Wetzel, Kim L.,
1
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