41. Geohydrology of southeastern Pennsylvania Author/Creator: Low, Dennis J. (Dennis James) Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
42. Two-dimensional hydrodynamic model of the St. Clair-Detroit River Waterway in the Great Lakes Basin Author/Creator: Holtschlag, David J. Publication/Creation: Lansing, Mich. : U.S. Dept. of the Interior, U.S. Geological Survey, Water Resources Division, Michigan District, 2002 Resource Type: Book Access & Availability: Loading
43. Geohydrology and ground-water quality, Big Elk Creek Basin, Chester County, Pennsylvania, and Cecil County, Maryland Author/Creator: Sloto, Ronald A. Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor] Resource Type: Book Access & Availability: Loading
44. Fecal-indicator bacteria in the Yakima River Basin, Washington : an examination of 1999 and 2000 synoptic-sampling data and their relation to historical data Author/Creator: Morace, Jennifer L. Publication/Creation: Portland, Or. : U.S. Department of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
45. Environmental setting and water-quality issues of the Mobile River basin, Alabama, Georgia, Mississippi, and Tennessee Publication/Creation: Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
46. Selected elements and organic chemicals in streambed sediment in the Salem area, Oregon, 1999 Author/Creator: Tanner, Dwight Q. Publication/Creation: Portland, Or. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
47. Concentrations of dissolved oxygen in the lower Puyallup and White Rivers, Washington, August and September 2000 and 2001 Author/Creator: Ebbert, J. C. Publication/Creation: Tacoma, Wash. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
48. Use of electrical resistivity to detect underground mine voids in Ohio Author/Creator: Sheets, Rodney A. 1962- (Rodney Allen) Publication/Creation: Columbus, Ohio : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
49. Total dissolved gas and water temperature in the lower Columbia River, Oregon and Washington, 2002 : quality-assurance data and comparison to water-quality standards Author/Creator: Tanner, Dwight Q. Publication/Creation: Portland, Or. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
50. Water quality of the Flint River Basin : Alabama and Tennessee, 1999-2000 Author/Creator: Hoos, Anne B. Publication/Creation: Nashville, Tenn. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading