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Effectiveness of Various Aquifer Restoration Schemes Under Variable Hydrogeologic Conditions
Author(s) -
Satkin Richard L.,
Bedient Philip B.
Publication year - 1988
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1988.tb00415.x
Subject(s) - hydrogeology , aquifer , drawdown (hydrology) , environmental science , groundwater , hydrology (agriculture) , volume (thermodynamics) , variable (mathematics) , soil science , geology , geotechnical engineering , mathematics , mathematical analysis , physics , quantum mechanics
The USGS MOC Model is a useful tool for evaluating different well patterns in an aquifer restoration scheme under variable hydrogeologic conditions. The best well pattern for a ground‐water cleanup is highly site‐specific and depends upon the objectives and constraints for each problem. In this study, seven different well patterns were investigated to determine the one(s) most efficient in achieving a range of desired levels of contaminant reduction. The well patterns were evaluated on the basis of cleanup time, volume of water circulated, and volume of water requiring treatment. Eight generic hydrogeologic conditions were modeled using different combinations of drawdown, hydraulic gradient, and dispersivity. The key hydrogeologic variables which control the rate of cleanup are well locations, pumping rates, transmissivity, dispersivity, and hydraulic gradient. For a given set of well locations, by varying transmissivity and maintaining drawdown, dispersivity, and hydraulic gradient constant, the cleanup time was found to be inversely related to the pumping rate.