Author/Creator
- Geological Survey (U.S.), issuing body✖[remove]696
- National Water-Quality Assessment Program (U.S.)54
- United States. Department of Energy34
- United States. Environmental Protection Agency31
- United States. Bureau of Reclamation20
- U.S. Fish and Wildlife Service13
- Bartholomay, Roy C.12
- New York (State). Department of Environmental Conservation12
- Alabama. Department of Environmental Management10
- New Jersey. Department of Environmental Protection10
- Army Armament Research, Development, and Engineering Center (U.S.)8
- United States. Bureau of Land Management8
- Kansas. Department of Health and Environment7
- Schroeder, Roy A.7
- United States. Air Force7
- United States. Bureau of Indian Affairs7
- United States. Naval Facilities Engineering Command. Southern Division7
- Cecil, L. DeWayne6
- Florida. Department of Environmental Regulation6
- Minnesota Pollution Control Agency6