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<br /> <br />. <br /> <br />COLORADO WATER CONSERVATION BOARD <br />823 State Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br /> <br />January 6-7, 1983 <br /> <br />Harper Lake Reservoir <br />(City o~.Louisville) <br /> <br />Introduction <br /> <br />Harper Lake Reservoir is located on Davidson Mesa approxi- <br />mately one mile west of Louisville . This reservoir is decreed <br />for agricultural use in the amount 62 acre-feet. It would be <br />enlarged to 715 acre-feet and would serve as a raw water storage <br />facility for the city of Louisville. The city has applied for a <br />change of use to municipal water on the 62 acre-feet (case <br />82CW376) . The city currently owns over 2,200 acre-feet of direct <br />flow rights, the point of diversion and the use of which would be <br />changed in order to utilize the expanded reservoir. <br /> <br />Problem <br /> <br />. <br /> <br />The City of LOuisville has experienced more than a 200 per- <br />cent population increase during the last decade. Due to this the <br />city's winter water supply is being taxed to the limit. with <br />continued growth in the area, the town will need to expand its <br />raw water storage capacity. The proposed project would satisfy <br />that need to the year 2010. <br /> <br />project Study <br /> <br />In January, 1981, the City of Louisville submitted an appli- <br />cation for State financial assistance. The Board later approved <br />funding for half of the cost of a feasibility study on the pro- <br />posed project. That study has now been completed by Rocky <br />Mountain Consultants, Inc., and is the basis of recommendations <br />on this project. <br /> <br />. <br /> <br />Proposed Project <br /> <br />Five alternative projects were studied for the city. For <br />reasons of economics and ease of construction, the Harper Lake <br />Reservoir alternative was determined to be the most feasible. <br />This project would increase the existing Harper Lake Reservoir <br />from a 62 to a 715 acre-foot capacity. The new reservoir would <br />have a_maximum depth of 23 feet, including 5 feet of freeboard, <br />and a surface area of 42 acres. A pumping station would be <br />installed to pump water from this reservoir to the Louisville <br />Ditch, which would transport water to the city's other raw water <br />reservoir. <br /> <br />600 <br />Harper/Lake <br />