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|Title:||Basin F subregional groundwater model|
|Authors:||Program Manager for Rocky Mountain Arsenal (Colo.)|
May, James H.
Abraham, Benita A.
Corcoran, Maureen K.
Rocky Mountain Arsenal
Hazardous waste sites
|Publisher:||Geotechnical and Structures Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||ERDC/GSL TR ; 01-19.|
Abstract: The groundwater flow system at Rocky Mountain Arsenal (RMA) is complex. To evaluate proposed remedial alternatives, interaction of the local groundwater flow system with the present contamination control systems must be understood. The purpose of this modeling effort is to provide a tool for evaluation and relative comparison of groundwater remedial alternatives. The model provides a method to assess the local groundwater impact of each remedial alternative. Results from the modeling effort will be used to compare the preliminary design of various remedial alternatives and allow general modification and reconfiguration of those designs to optimize their performance as part of the Detailed Analysis of Alternatives (DAA) of the Feasibility Study (FS). Specific objectives of the modeling effort were developed based on the FS modeling needs established by RMA. Objectives are used to assist in defining the goals and associated scope of work of the modeling effort and address the need for modeling during the DAA of the FS, which requires comparison of remedial alternatives that have been retained. Objectives also allow for some flexibility in the analysis, such as combination or addition of remedial alternatives during subsequent phases of the FS. This modeling effort accounts for groundwater flow in the upper Denver Fm. This approach differs from the majority of previous modeling efforts, which treat unsaturated alluvium areas as impermeable and do not address flow in the Denver Fm. Exchange of groundwater between the alluvium and the Denver Fm sands, basins, and precipitation infiltration is handled by areal inputs. The model was calibrated by applying the existing concepts of flow in the modeled area to reproduce known water levels, groundwater discharge and recharge, and the flux through the aquifer system and across boundaries. It is the intent of this modeling effort to incorporate all current pertinent hydrogeologic data into the model. Corrections to the RMA database and data from other ongoing modeling activities were incorporated when possible. NOTE: This file is very large. Allow your browser several minutes to download the file.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Technical Report|