41. Water-quality assessment of the Kentucky River Basin, Kentucky : results of investigations of surface-water quality, 1987-90 Author/Creator: Haag, Kim H. Publication/Creation: Louisville, Kentucky : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
42. Water-quality assessment of the Lower Susquehanna River Basin, Pennsylvania and Maryland : environmental setting Author/Creator: Risser, Dennis W., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
43. Water-quality assessment of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma : analysis of information on nutrients, suspended sediment, and suspended solids, 1970-92 Author/Creator: Davis, Jerri V., author Publication/Creation: Little Rock, Arkansas : U.S. Geological Survey, [1995] Resource Type: Book Access & Availability: Loading
44. Water-quality assessment of the Ozark plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma : summary of information on pesticides, 1970-90 Author/Creator: Bell, Richard W. (Hydrogeologist), author Publication/Creation: Little Rock, Arkansas : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
45. Water-quality assessment of the Potomac River Basin : basin description and analysis of available nutrient data, 1970-90 Author/Creator: Blomquist, Joel D., author Publication/Creation: Towson, Maryland : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
46. Water-quality assessment of the Rio Grande Valley, Colorado, New Mexico, and Texas : occurrence and distribution of selected pesticides and nutrients at selected surface-water sites in the Mesilla Valley, 1994-95 Author/Creator: Healy, Denis F., author Publication/Creation: Albuquerque, New Mexico : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
47. Water-quality assessment of the Rio Grande Valley, Colorado, New Mexico, and Texas : shallow ground-water quality of a land-use area in the San Luis Valley, south-central Colorado, 1993 Author/Creator: Anderholm, Scott K., author Publication/Creation: Albuquerque, New Mexico : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
48. Water-quality assessment of the Trinity River Basin, Texas : pesticides in streams draining an urban and an agricultural area, 1993-95 Author/Creator: Land, Larry F., author Publication/Creation: Austin, Texas : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
49. Water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin : major and trace elements in water, sediment, and biota, 1978-90 Author/Creator: Fitzpatrick, Faith A., author Publication/Creation: [Washington, D.C.] : U.S. Department of the Interior, U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
50. Water-quality assessment of the upper Snake River Basin, Idaho and western Wyoming : summary of aquatic biological data for surface water through 1992 Author/Creator: Maret, Terry R., author Publication/Creation: Boise, Idaho : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading