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<br />VII-12 <br /> <br />. <br /> <br />The ,'esults of the pumping test indicate that the well should be pumped at a <br /> <br /> <br />rate so that the pumping water level does not exceed 43 feet below ground <br /> <br /> <br />surface. Under present conditions, a pumping rate of approximately 475 gpm <br /> <br /> <br />would result in 43 foot pumping water level. However, in dry periods, a re- <br /> <br /> <br />duced pumping rate may be necessary to achieve this pumping water level. <br /> <br />The 43 foot limit is set to prevent the pumping water level from going below <br /> <br /> <br />the top of the well screen at 45 feet. Should the pumping water level drop <br /> <br /> <br />below 45 feet, cascading water and aeration could result in the following <br /> <br /> <br />p rob 1 ems: <br /> <br /> <br />1. air in the 1 i ne, <br /> <br /> <br />2. cavitation in the pump, <br /> <br /> <br />3. decrease in pump efficiency, and <br /> <br /> <br />4. excessive wear on the pump. <br /> <br /> <br />The 43 foot level allows 8 feet of margin for seasonal fluctuations in pres- <br /> <br /> <br />sure and possible decrease in efficiency of the well. <br /> <br />. <br /> <br />The Water quality from the well is good, however, 310 mg/l hardness indicates <br /> <br /> <br />hard water. No chemical constituents exceed the limits recommended by the <br /> <br /> <br />U.S. Public Health Service. Well details, pumping test data, and water quality <br /> <br /> <br />are included in Appendix E. <br /> <br />BASAL T P ROJ ECT <br /> <br /> <br />The Basalt Project is a possible future source of water for the Town of Car- <br /> <br /> <br />bondale, but it is not clear IIOW what form the Basalt Project is going to take <br /> <br /> <br />or what the implementation timing will be. The Basalt Project is planned to <br /> <br /> <br />provide municipal, domestic and irrigation water to areas of the Roaring Fork <br /> <br /> <br />Valley by storage releases from Ruedi Reservoir and from development of surplus <br /> <br /> <br />flows of Cattle Creek and water exchanges along Mesa and Coulter Creeks. Stored <br /> <br /> <br />water would be distributed from th,' Ruedi Reservoir to municipal and domestic <br /> <br /> <br />treatment plants and to the Landis Canal via the Landis Pipeline and Canal. <br /> <br /> <br />Treated water would b" distributed by three separate municipal and domestic <br /> <br /> <br />trunklines to the Roadng Fork Valley. <br /> <br />. <br /> <br />Two of the conduits would branch fcom a treatment plant to be built a mile <br /> <br /> <br />north of :lasalt. The Snowmass trunkl ine would distribute water to the valley <br />