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A 76 mg /1 increase in TDS was predicted by the PHC for Fish Creek in <br />June, while a 20 mg /l increase was observed at Site SSF13. A 74 mg /1 <br />increase in TDS was predicted by the PHC for Fish Creek in July, while a <br />10 mg /1 increase was observed at Site SSF13. The winter snowpack (as <br />estimated from data at the NDCD's Hayden Station) for this year was <br />above average, and so was the annual average flow at NPDES8. <br />American Public Health Association (Ed.) . 1985. "Standard Methods for <br />the Examination of.Water and Wastewater ", 16th Edition, Washington, D.C. <br />Brakensieh and others. 1979. "Field Manual for Research in Agricultural <br />Hydrology ". <br />Buchanan and Sumers. 1968. "Stage Measurements at Gaging Stations ". <br />Colorado Dept. of Health. August 2005. "Regulation No. 31, The Basic <br />Standards and Methodologies for Surface Water" <br />Colorado Dept. of Health. December 2005. "Regulation No. 33, <br />Classification and Numeric Standards for the Upper Colorado River Basin" <br />Colorado Dept. of Health. November 2004. "Regulation No. 41, The Basic <br />Standards for Ground Water" <br />EPA. 1976. "Quality Criteria for Water" <br />Hem, John D. 1989. "Study and Interpretation of the Chemical <br />Characteristics of Natural Water" USGS Water Supply Paper 2254, Third <br />Edition <br />National Academy of Sciences. 1974. Nutrients and Toxic Substances in <br />Water for Livestock and Poultry <br />(From website: extension. usu .edu /files /agpubs /beef28.pdf) <br />13 <br />