21. Arsenic loads and source areas in and along Bear Creek, Park County, Montana, September 2000 Publication/Creation: Helena, Mont. : U.S. Dept. of the Interior, U.S. Geological Survey, [2002] Resource Type: Book Access & Availability: Loading
22. Assessment and comparison of 1976-77 and 2002 water quality in mineshafts in the Picher mining district, northeastern Oklahoma and southeastern Kansas Author/Creator: DeHay, Kelli L. Publication/Creation: Oklahoma City, OK : U.S. Dept. of the Interior, U.S. Geological Survey, [2003] Resource Type: Book Access & Availability: Loading
23. Assessment of environmental factors affecting fecal-coliform concentrations in Hampton/Seabrook Harbor, New Hampshire, 2000-01 Author/Creator: Deacon, Jeffrey R. Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
24. Assessment of environmental factors affecting fecal-coliform concentrations in Hampton/Seabrook Harbor, New Hampshire, 2000-01 Author/Creator: Deacon, Jeffrey R., author Publication/Creation: Pembroke, New Hampshire : U.S. Deptartment of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
25. Assessment of fish assemblages and minimum sampling effort required to determine biotic integrity of large rivers in southern Idaho, 2002 Author/Creator: Maret, Terry R. Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Book Edition: Version 1.1. Access & Availability: Loading
26. Assessment of fish habitat, water quality, and selected contaminants in streambed sediments in Noyes Slough, Fairbanks, Alaska, 2001-2002 Publication/Creation: Anchorage, Alaska : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Book Access & Availability: Loading
27. Assessment of natural attenuation of ground-water contamination at sites FT03, LF13, and WP14/LF15, Dover Air Force Base, Delaware Author/Creator: Barbaro, Jeffrey R. 1960- (Jeffrey Ralph) Publication/Creation: Baltimore, Md. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
28. Assessment of possible sources of microbiological contamination and water-quality characteristics of the Jacks Fork, Ozark National Scenic Riverways, Missouri--Phase II Author/Creator: Davis, Jerri V. Publication/Creation: Rolla, Mo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
29. Assessment of selected inorganic constituents in streams in the Central Arizona Basins Study Area, Arizona and northern Mexico, through 1998 Author/Creator: Anning, David W. Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Resource Type: Book Access & Availability: Loading
30. Assessment of stream conditions and trends in biological and water-chemistry data from selected streams in Chester County, Pennsylvania, 1981-97 Author/Creator: Reif, Andrew G. Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading