Identifying Changes in Background Water-Quality Conditions, Arkansas River and Fountain Creek, near Pueblo, Colorado

References Cited

Batie, S.S., and Healy, R.G., 1983, The future of American agriculture: Scientific American, v. 248, no. 2, p 45-53.

Cain, Doug, 1987, Relations of specific conductance to streamflow and selected water-quality characteristics of the Arkansas River Basin, Colorado: U.S. Geological Survey Water-Resources Investigation Report 87-4041, 93 p.

Cohn, T.A., Caulder, D.L., Gilroy, E.J., Zynjuk, L.D., and Summers, R.M., 1992, The validity of a simple log-linear model for estimating fluvial constituent loads: An empirical study involving nutrient loads entering Chesapeake Bay: Water Resources Research, v. 28, no. 9, p. 2,353-2,364.

Cohn, T.A., 2002, ESTIMATOR 2002: A Beta release by Tim Cohn accessed December 12, 2002, at

Colorado Climate Center, 2002, Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, accessed May 24, 2003, at

Colorado Department of Public Health and Environment, 2001, Water Quality Control Commission Regulation No. 31, The basic standards and methodologies for surface water, accessed March 23, 2002 at

GEI Consultants Inc., 2000, Southeastern Colorado Water and Storage Needs Assessment Enterprise: Preferred Storage Options Plan, Englewood, Colorado, 101 p.

Helsel, D.R., and Hirsch, R.M., 1992, Statistical Methods in Water Resources, Elsevier Science Publishing Company Inc., New York, New York.

Hem, J.D., 1985, Study and interpretation of the chemical characteristics of natural water: U.S. Geological Survey Water- Supply Paper 2254, 263 p.

Lewis, M.E., and Brendle, D.L., 1998, Relations of streamflow and specific conductance trends to the lower Arkansas River, Southeastern Colorado: U.S. Geological Survey Water-Resources Investigations Report 97-4239, 48 p.

Lewis, M.E., 1999, Simulated effects of water exchanges on streamflow and specific conductance in the Arkansas River upstream from Avondale, Colorado: U.S. Geological Survey Water-Resources Investigations Report 98-4140, 34 p.

Natrella, M.G., 1963, Experimental Statistics, NBS Handbook 91, National Bureau of Standards, Washington, D.C.

Ortiz, R.F., Lewis, M.E., and Radell, M.J., 1998, Water-quality assessment of the Arkansas River Basin, Southeastern Colorado, 1990-93: U.S. Geological Survey Water-Resources Investigations Report 97-4111, 69 p.

Pielke, Sr., R.A., Doesken, N., and Bliss, O., 2002, Climate of Colorado. Climatography Report #60, National Climatic Data Center, Asheville, NC. accessed June 4, 2003, at

PSOP Implementation Committee, 2001, Final Draft PSOP Implementation Committee Report, Southeastern Colorado Water Activity Enterprise, Pueblo, Colorado, 29 p.

Rickert, D.A., 1985, Compensation for discharge in detecting trends in water-quality data: U.S. Geological Survey, Branch of Water Quality, Memorandum 85.17.

S-PLUS 2000 User's Guide, 1999, Data Analysis Products Division, MathSoft, Seattle, Washington.

U.S. Environmental Protection Agency, 1992, Hazard Ranking System Guidance Manual, Office of Solid Waste and Emergency Response Directive 9345.1-07.

U.S. Geological Survey, 1975-2003, Water Resources Data for Colorado, water years 1974-2002-volume 1; U.S. Geological Survey Water-Data Reports CO-74-1 to CO-02-1 (published annually).