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<br />water-quality data also were evaluated for seasonal, temporal, and spatial <br />variations. The scope of the report included reviewing previous reports on <br />the two basins and assembling and evaluating streamflow and surface-water- <br />quality data collected from 1975 through 1983. Previous reports of surface <br />water and surface-water quality of Fountain Creek basin, including Monument <br />Creek basin, that were reviewed and are pertinent to this report include: <br />Klein and Bingham (1975) and Livingston and others (1975, 1976a, 1976b). <br /> <br />Water-quality constituents monitored during 1975 through 1983 included: <br />(1) Water temperature, specific conductance, pH, and dissolved oxygen (by <br />personnel onsite); (2) 5-day biochemical oxygen demand (BODs) and fecal <br />coliform bacteria (by V,S. Geological Survey personnel in the Pueblo sub- <br />district office); and (3) suspended solids, dissolved chloride, dissolved <br />sulfate, total ammonia, total nitrite plus nitrate, total-recoverable cadmium, <br />dissolved chromium, dissolved-hexavalent chromium, total-recoverable copper, <br />total-recoverable iron, dissolved iron, total-recoverable lead, total- <br />recoverable manganese, dissolved manganese, total-recoverable nickel, total <br />selenium, total-recoverable silver, and total-recoverable zinc (by the U,S, <br />Geological Survey Denver Analytical Laboratory). <br /> <br />Acknowledgments <br /> <br />The author appreciates the time, information, and suggestions provided <br />by Gene Y. Michael and Dennis T, Cafaro, Colorado Springs Department of <br />Utilities; Robert T. Schrader, Security Water and Sanitation District; <br />Donald C. Lohrmeyer, Widefield Homes Incorporated; Edmond W. Hakes and <br />Elmer J. Wahlborg, Stratmoor Hills Water and Sanitation District; F, Stuart <br />Loosley, Cherokee Water District; and Mary Barber, U,S, Department of the <br />Army. <br /> <br />STREAM CLASSIFICATIONS AND WATER-QUALITY STANDARDS <br /> <br />Stream classifications in Colorado are based on categories of beneficial <br />use which include class 1 recreation, class 2 recreation, c.lass 1 cold- or <br />warm-water aquatic life, class 2 cold- or warm-water aquatic life, domestic <br />water supply, and agricultural categories. Streams categorized for reCre- <br />ational llse are intended for human uses such as swimming, wading, or boating. <br />Class 1 recreation streams are suitable for prolonged full-body contact sports <br />such as swimming, Class 2 recreation streams are suitable for wading and <br />fishing but not for full-body contact sports, Streams categorized for class 1 <br />aquatic-life use either provide or could provide a habitat sufficient to <br />protect and maintain a wide variety of biota, including sensitive species, <br />Streams categorized for class 2 aquatic-life use are primarily limited by flow <br />and streambed characteristics in their ability to maintain a variety of biota. <br />Because temperature affects the aquatic community, cold- and warm-water <br />aquatic-life classifications were established. Streams that have a cold-water <br />aquatic-life classification have temperatures that rarely exceed 20 DC; <br />whereas, streams that have a warm-water aquatic life classification frequently <br />have temperatures that exceed 20 DC. Streams categorized for domestic water- <br />supply use are suitable or intended to be suitable as potable water supplies, <br />The agricultural-use category is for streams that are suitable for irrigation <br />of crops usually grown in Colorado and for streams that are not detrimental <br /> <br />4 <br />