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COIARADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 2. Permit No. CO-0032115. <br />III. RECEIVING STRE9M <br />A. Identification, Classification and Standards <br />1. Identification: Discharge is to Johnson Gulch, Middle Pyeatt <br />Gulch, E. Pyeatt Gulch, and W. Pyeatt Gulch, which are all <br />tributary to the Yampa River, sad Ute Gulch, which is tributary to <br />the Williams Fork River. All of these gulches are is segment 3b of <br />the Lower Yampa River. Discharge is also to E. Buzzard Gulch, Far <br />E. Buzzard Gulch, W. Buzzard Gulch, Coyote Gulch, and No-Name <br />Gulch, which are all tributary to the Yampa River, segment 3a of <br />the Lower Yampa River. Discharge is also to Elk Gulch and Deer <br />Gulch, which are tributary to the Williams Fork River, segment 3a <br />of the Lower Yampa River. The distance from the discharge points <br />to the Yampa or Williams Fork Rivers is at least 1.7 miles for all <br />points. <br />2. Classification: 3a sad 3b - These stream segments are classified <br />for the following uses: Recreation, Class 2; Aquatic Life, Class 2 <br />(Warm); Agriculture. <br />3. Numeric Standards: The standards which have been assigned in <br />accordance with the above classifications can be found in `_1.7.0, <br />Classifications and Numeric Standards for the Lower Colorado River <br />Basin (5 CCR 1002-8) (effective 3/30/91). It should be noted that <br />this facility does not discharge pollutants which are limited by <br />water quality standards with the eaception of pH. <br />B. Receiving Water Data <br />1. Stream Low Flow: The flows which will be used to calculate: <br />effluent limitations are acute flows, those that occur for one day <br />every three years (lE3), or chronic, those that occur for thirty <br />days every three years (30E3). These flows have been dete~~ined by <br />the Water Quality Control Division sad are as follows: <br />Johnson Gulch, No-Name Gulch, Middle Pyeatt Gulch, E. Pyeatt Gulch, <br />W. Pyeatt Gulch, E. Buzzard Gulch, Far E. Buzzard Gulch, W. Buzzard <br />Gulch, Coyote Gulch, Ute Gulch, Elk Gulch, and Deer Gulch •- <br />Type Flow <br />Acute (lE3): 0 cfs <br />Chronic (30E3): 0 cfs <br />2. Impacts on Downs <br />Water Suonlies or <br />Wa ter:: <br />The discharge is not eapected to have any impact on downstream <br />users or segments, provided compliance with effluent limitations is <br />achieved. <br />