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2) Capture of sewage effluent return flows from trans-mountain <br />diversions or nontributary groundwater and allowing these to be <br />used to extinction or divert more native flows through exchange. <br />3) Increase in phreatophyte or non-beneficial consumptive use. <br />4) Endangered species requires more water to be delivered <br />downstream - should be shared equally by all water right <br />owners. <br />5) Improved on farm irrigation efficiencies have reduced deep <br />percolation back to the aquifer and increased total consumptive <br />use. <br />6) Municipalitities, commercial, and industrial uses have increased <br />diversions by increasing their allowed diversions to the <br />maximum of their decrees or even made absolute previously <br />unused conditional decrees. <br />7) Use of gravel pits - especially those with slurry walls which <br />reduce or prevent ground water return flows to the river. <br />8) Greater evaporation from shallow reservoirs or impoundments. <br />9) Loss of flexibility for water administration <br />10) Changes from irrigated agriculture to use of the land for housing <br />developments and resulting impact on amount and timing of <br />return flows. Do lawn grass returns equal irrigation deep <br />percolation? <br />11) Changes in diversion and historic irrigation pattern when free <br />water (flood flows or snow pack runof) is no longer diverted and <br />used for irrigation because no longer any place to apply the <br />water. Changes in canal seepage and deep percolation. <br />Example 2007 April-June free water. <br />12) Conservation programs by municipalities have reduced sewage <br />effluents, reduced deep percolation from lawn irrigation and <br />increased consumptive use causing less return flow to the <br />River. <br />III. SUGGESTIONS FOR TASK FORCE ACTION: <br />There must be a way to allow existing wells to pump and achieve <br />maximum utilization of both ground and surtace water. <br />4