Strategies for offsetting seasonal impacts of pumping on a nearby stream

Ground Water
J D Bredehoeft, Eloise Kendy

Abstract

Ground water pumping from aquifer systems that are hydraulically connected to streams depletes streamflow. The amplitude and timing of stream depletion depend on the stream depletion factor (SDF(i)) of the pumping wells, which is a function of aquifer hydraulic characteristics and the distance from the wells to the stream. Wells located at different locations, but having the same SDF and the same rate and schedule of pumping, will deplete streamflow equally. Wells with small SDF(i) deplete streamflow approximately synchronously with pumping. Wells with large SDF(i) deplete streamflow at approximately a constant rate throughout the year, regardless of the pumping schedule. For large values of SDF(i), artificial recharge that occurs on a different schedule from pumping can offset streamflow depletion effectively. The requirements are (1) that the pumping and recharge wells both have the same SDF(i) and (2) that the annual total quantities of recharge and pumping be equal. At larger SDF(i) values, it takes longer for pumping to impact streamflow in a wide aquifer than it does in a narrow aquifer. In basins that are closed to further withdrawals because streamflow is fully allocated, water-use changes replace new allocations as the...Continue Reading

References

Jun 30, 2007·Ground Water·Calvin D MillerVal Flory

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Citations

Oct 1, 2010·Ground Water·John Bredehoeft
Nov 17, 2010·Ground Water·William C Walton
May 21, 2014·Ground Water·Glen R WalkerDavid W Rassam
Nov 20, 2014·Ground Water·Jeffrey C Davids, Steffen W Mehl
Dec 21, 2016·Ground Water·Hubert J Morel-SeytouxSteffen Mehl
Jun 8, 2017·Ground Water·Hyeonju LeeYongcheol Kim

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