51. Quality-assurance design applied to an assessment of agricultural pesticides in ground water from carbonate bedrock aquifers in the Great Valley of eastern Pennsylvania Author/Creator: Breen, Kevin J., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
52. Quality-assurance, quality-control manual for collection and analysis of water-quality data in the Ohio District, U.S. Geological Survey Author/Creator: Francy, Donna S., author Publication/Creation: Columbus, Ohio : U.S. Department of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
53. Quality-assurance results for routine water analyses in U.S. Geological Survey laboratories, water year 1998 Author/Creator: Ludtke, Amy S., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
54. Quality-control results for ground-water and surface-water data, Sacramento River basin, California, National-Water Quality Assessment, 1996-1998 Author/Creator: Munday, Cathy Publication/Creation: Sacramento, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
55. Quantification of deep percolation from two flood-irrigated alfalfa fields, Roswell Basin, New Mexico Author/Creator: Roark, D. Michael, author Publication/Creation: Albuquerque, New Mexico : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
56. Quantification of metal loading in Fisher Creek by tracer injection and synoptic sampling, Park County, Montana, August 1997 Author/Creator: Kimball, Briant A., author Publication/Creation: Salt Lake City, Utah : U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
57. Quantification of metal loading in French Gulch, Summit County, Colorado, using a tracer-injection study, July 1996 Author/Creator: Kimball, Briant A., author Publication/Creation: Salt Lake City, Utah : U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
58. Quantification of metal loading to Silver Creek through the Silver Maple Claims area, Park City, Utah, May 2002 Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Book Access & Availability: Loading
59. Quantification of metal loads and assessment of metal sources in upper Beaver Creek watershed, Shoshone County, Idaho, May and June 2002 Author/Creator: Ott, Douglas S. Publication/Creation: Boise, Idaho : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
60. Quantification of metal loads by tracer injection and synoptic sampling in Daisy Creek and the Stillwater River, Park County, Montana, August 1999 Author/Creator: Nimick, David A. Publication/Creation: Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading