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<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 />I <br />I <br />I <br />I <br />I <br />il <br /> <br />the required magnitude Sc'f'm prohibitive from a cost standpoint. <br /> <br />The irrigation water is delivered during the irrigation season, <br />therefore making it difficult for availability on a year around use <br />without major storage facilities and modifications to existing <br />systems. Much of the surface water available to the area is <br />water which is derived or has substantial contribution from the <br />eff1 uent of the Denver ~1etro Sewage Treatment faci 1 iti es. Thi s <br />could be a potential source of pollution and should be considered. <br /> <br />A detailed discussion on this subject is given in the proceedings <br />of the conference in the 'Matter of Pollution of the South Platte <br />River Basin in the State of Colorado'. The proceedings point out <br />that pollution in Barr Lake which is a substantially large reser- <br />voir in the area, has been a problem. Additionally, the seep <br />ditch from Barr Lake and the Burlington ditch have had exposure <br />to pollution, as have other inter-connected canals and ditches <br />from the Barr Lake Reservoirs owned and operated by the Farmers <br />Reservoir and Irrigation Company. Barr Lake is approximately 14 <br />miles northeast of Denver. It has a maximum depth of 42 feet <br />and a maximum volume of 33,000 acre feet. The lake is normally <br />filled during the months of November through April by water diverted <br />from the South Platte River through the Burlington-O'Brian Canal. <br />Water is normally released from the lake for irrigation during the <br />period from May through September. The point of diversion for the <br />Burlington-O'Brian Canal is immediately downstream from the Denver <br />North-side Sewage Treatment Plant discharge to the South Platte <br />River. <br /> <br />If surface water from one of the reservoirs and/or ditches were <br />considered for treatment and del ivery to the Town, it may be <br />practical to combine the surface water with the existing well <br />water supply. Because most of the surface water rights are of <br />such low priority, it is assumed that a raw water storage reser- <br />voir would be required to provide storage for a period of 18 <br />months. A pump station, transmission main, and treatment plant <br />would be required to provide an adequate supply pressure to the <br /> <br />v - 5 <br />