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<br />I <br />i II <br />I <br />I <br />'I <br />il <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />adequate to determine the extent of treatment required for the <br />purposes of this study. Water quality data from the following <br />sources are available in the public records: <br /> <br />USGS Water Quality Stations: <br /> <br />09071100 <br /> <br />Colorado River near Glenwood Springs, <br />Colorado -- October 1941 to current <br />year. <br /> <br />09092570 <br /> <br />Colorado River at Rulison, Colorado <br />-- October 1976 to January 1978. <br /> <br />09093700 <br /> <br />Colorado River near DeBeque, Colorado <br />-- August 1973 to current year. <br /> <br />EPA Monitoring Stations: <br /> <br />OB045 <br /> <br />Colorado River at New Castle -- <br />January 1968 to present. <br /> <br />Colorado River near Cameo -- January <br />1968 to present. <br /> <br />08077 <br /> <br />Colorado Department of Health Monitoring Station: <br />RPS No. 47 Colorado River at New Castle <br /> <br />Table IV-8 gives a composite summary of the available water quality <br />records from the two EPA monitoring stations along with the Colorado <br />Department of Health mandatory parameter limits. <br /> <br />1\ review of the available water quality data mentioned above indi- <br />cates that substantially none of the primary nor secondary Maximum <br />Contaminant Levels (MCL's) for organic or inorganic chemicals are <br />being exceeded. The high recording of 0.019 mg/l for selenium, which <br />exceeds the allowable limit, was assumed to be a bad sample or <br /> <br />IV-13 <br />