HR: 0800h
AN: H21F-1087    [Abstracts]
TI: Capture Zone of a Pumping Well Between two Parallel Rivers
AU: * Intaraprasong, T
EM: trinint@tamu.edu
AF: Texas A&M University, Geology and Geophysics Department, Halbouty Building, College Station, TX 77843 United States
AU: Zhan, H
EM: zhan@tamu.edu
AF: Texas A&M University, Geology and Geophysics Department, Halbouty Building, College Station, TX 77843 United States
AB: We have presented analytical and semi-analytical solutions for the capture zones of a pumping well in a homogeneous, confined aquifer bounded by two parallel rivers, which are directly connected to the aquifer. We use complex potential to describe the flow field and use infinite image pumping/injecting wells to simulate the two lateral boundaries. This model is different from the previous model that has only one nearby river and required only one well to simulate the lateral boundary. Since we assume that the rivers are fully penetrating into the aquifer and the vertical recharge is negligible, the extracted water must be originated from one of the two rivers or both. Thus the model can be used to determine percentages of extracted water originated from each river. Normalized curve are presented as a tool to determine the shape, the stagnation points of the capture zone, and percentages of extracted water originated from each river. This study is particularly useful for planning or managing water supply wells located near two surface water bodies.
DE: 1829 Groundwater hydrology
DE: 1831 Groundwater quality
DE: 1832 Groundwater transport
DE: 1836 Hydrologic budget (1655)
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting