Hydraulic gradient control for groundwater contaminant removal

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Authors:Atwood, Dorothy Fisher; Gorelick, Steven M.
Author Affiliations:Primary:
U. S. Geol. Surv., Menlo Park, CA, United States
Volume Title:Journal of Hydrology
Source:Journal of Hydrology, 76(1-2), p.85-106. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0022-1694
Publication Date:1985
Note:In English. 17 refs.; illus. incl. 1 table, sketch maps
Summary:The Rocky Mountain Arsenal near Denver, Colorado, is used as a realistic setting for a hypothetical test of a procedure that plans the hydraulic stabilization and removal of a groundwater contaminant plume. A two-stage planning procedure successfully selects the best wells and their optimal pumping/recharge schedules to contain the plume while a well or system of wells within the plume removes the contaminated water. In stage I, a combined groundwater flow and solute transport model is used to simulate contaminant removal under an assumed velocity field. The result is the approximated plume boundary location as a function of time. In stage II, a linear program, which includes a groundwater flow model as part of the set of constraints, determines the optimal well selection and their optimal pumping/recharge schedules by minimizing total pumping and recharge. The simulation-management model eliminates wells far from the plume perimeter and activates wells near the perimeter as the plume decreases in size. This successfully stabilizes the hydraulic gradient during aquifer cleanup.—Modified journal abstract.
Subjects:Contaminant plumes; Controls; Data processing; Design; Environmental geology; Ground water; Hydraulics; Hydrogeology; Linear programming; Mathematical models; Movement; Pollution; Reclamation; Solutes; Waste disposal; Water management; Adams County Colorado; Colorado; Denver Colorado; Denver County Colorado; Rocky Mountain Arsenal; United States; Hydraulic gradient
Coordinates:N394000 N395000 W1044500 W1045500
Record ID:1985038383
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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