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<br />derived from this effort, and adopted as regulation by the Colorado Water
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<br />Quality Control Commission. A total poundage of phosphorus has been
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<br />determined for the reservoir to maintain the inlake standard concentration of
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<br />.035 mg/l. The total allowable poundage is divided amongst point, nonpoint
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<br />and, natural sources of phosphorus loading, In order for the nonpoint source
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<br />portion of the wasteload to be met, significant nonpoint source controls are
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<br />necessary. Efforts to control existing" as well as future, sources is
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<br />necessary. Efforts to reduce total nonpoint source.loading by 50% are
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<br />underway in the basin.
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<br />Cherry. Creek, below the reservoir, is heavily impacted by urban and stormWater
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<br />runoff to its confluence with the South Platte. Primary pollutants of concern
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<br />are ammonia, metals, fecal coliform bacteria, and sediment.
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<br />Clear Creek, a tributary of the Platte originates high in mountains and drains
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<br />one of the primary metals mining regions in Colorado. A large number of
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<br />active and abandoned mining districts including Dailey, Atlantic, Downieville,
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<br />Fall River, Gold Dirt, Idaho, Griffith, Georgetown, Argentine, Cascade, Lower
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<br />Union, Empire, and Lincoln are in the Clear Creek drainage. . As a result, both
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<br />the Creek and its tributaries are heavily impacted by metals. From Silver
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<br />Plume to Idaho Springs, Clear Creek has copper and zinc above the basic
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<br />standards for aquatic life. The Division of Wildlife reports that although
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<br />the number and size of fish. Near Georgetown, Leavenworth Creek, enters the
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<br />South Fork of Clear Creek carrying elevated levels of metals from the
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