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<br />i~~, <br /> <br />ooa~~l <br /> <br />~.) <br />\::)1; <br />!.'it <br />~~, <br />~i'- <br />~~:'t_ <br />l~~,-.. <br />" <br />\\'/ <br /> <br />Pilot testing of the well, which will <br />consist of recharge with Cedar River <br />water, aquifer storage, and <br />subsequent recovery from the <br />intennediate groundwater aquifer, is <br />scheduled for the fall of 1990, The <br />testing will consist of a series of five <br />pumping cycles of progressively <br />larger volumes and longer residence <br />time. The data needed to evaluate if <br />the aquifer or recharge <br />water are being adversely <br />affected will be obtained <br />using several different <br />methods, Chemical <br />analysis will be made of <br />water samples from the <br />Metro well and nearby <br />Metro obselVation well, <br />Water levels in the Metro <br />well and obselVation well <br />will be monitored to <br />evaluate the aquifer's <br />response to the cycling of <br />recharge water, and a <br />series of short-tenn <br />pumping tests will be <br />perfonned at the Metro <br />well to evaluate the <br />recharge effects on <br />hydraulic conductivity ill" <br />the vicinity of the well. <br /> <br />w <br /> <br />For further infonnation, <br />please contact Ron Golus, <br />Bureau of Reclamation, <br />Boise, Idaho <br />(208) 334-1I47. <br /> <br />!t <br /> <br />\\ <br /> <br />Nevada Experiments with <br />Groundwater Recharge <br /> <br />i~: <br /> <br />water. Aquifer water levels in the <br />basins have been declining by <br />approximately 1.3 feet per year <br />since 1971, which has resulted in <br />increased pumping costs, curtailed <br />development, and increased <br />potential water quality degradation. <br /> <br />The proposed injection wells will be <br />equipped with a 2-inch diameter <br /> <br />The 250-acre-foot water supply for <br />recharge will be acquired through a <br />water right lease agreement with the <br />University of Nevada. Three <br />hundred and fifty acre-feet will be <br />leased, allowing for an annual <br />guaranteed return flow to the system <br />of 100 acre-feet. Diversions for <br />recharge will be made only during <br />the low fishery demand period of <br />October 1 to January 3D, to <br />enhance conditions for the <br />threatened Lahontan <br />cutthroat trout and the <br />endangered cui-ui. <br /> <br /> <br />An agreement with West <br />Pac Utilities of Reno to <br />treat and deliver recharge <br />water has been signed. <br /> <br />Washoe's penn it <br />application for injecting <br />water has been approved <br />by the Nevada Division of <br />Environmental Protection, <br />and a pennit for injection <br />has been filed with the <br />Nevada State Engineer's <br />office. <br /> <br />In an effort to assure <br />continuation of recharge <br />once a successful <br />demonstration project is <br />complete, Washoe County <br />is drafting an agreement <br />with West Pac Utilities for a water <br />exchange. This will also provide <br />additional recharge water above the <br />proposed 250 acre-feet. West Pac <br />has expressed interest in the <br />recharge project as a way to manage <br />their water resources more <br />efficiently. Excess water in the fall <br />and winter would be recharged, <br />stored, and then recovered to meet <br />peak demands in the summer. <br /> <br />High/ine well field, Seattle - production well showing recharge <br />connection point. <br /> <br />The Washoe County Department of <br />Public Works, which selVes the <br />burgeoning suburbs of Reno, <br />Nevada, will soon execute a <br />cooperative agreement with the <br />Bureau of Reclamation to develop a <br />groundwater recharge project in the <br />East Lemmon Valley and Golden <br />Valley Basins near Reno. The <br />project will demonstrate the <br />feasibility of using injection wells to <br />recharge treated Truckee River <br /> <br />,\j <br /> <br />;',. <br /> <br />bypass pipe in the annular space, <br />allowing two-way flow for recharge, <br />sampling, and redevelopment. The <br />East Lemmon Valley site will <br />requlre modification of an existing <br />well and drilling of 14 monitoring <br />wells. These monitoring wells will <br />be screened in the upper 50 to 100 <br />feet in order to detennine aquifer <br />interconnection, and in the lower <br />300 to 400 feet to detennine the <br />hydrogeologic characteristics. <br /> <br />Three new wells will be drilled <br />infor Golden Valley recharge site, <br />and submersible pumps will be <br />installed for maintenance pumping. <br />An existing distribution system will <br />be used to deliver the treated water. <br /> <br />Southeast Salt Lake County <br /> <br />The Salt Lake County Water <br />ConselVancy District (SLCWCD) <br />is the sponsor of a groundwater <br />