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evaluation of the U.S.E.P.A. model MULTIMED and applicability to hydrogeologic conditions in Florida

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Date Issued:
1995
Summary:
The U.S. Environmental Protection Agency's program, MULTIMED, was evaluated using a parametric analysis and result comparisons the with programs MODFLOW and MT3D. The validity and accuracy of the MULTIMED model results were determined and independent parameter sensitivities identified. The dilution calculations in the model are sensitive to several parameters. A parameter determined critical is the seepage velocity which is used in the transport calculations of the model, as well as a "Near Mixing Factor". Under Florida's aquifer conditions, the Near Mixing Factor as calculated in the model is susceptible to overestimating the dilution of the initial concentration due to relatively high recharge rates and low hydraulic conductivities. Florida's aquifer conditions also typically result in Near Mixing Factor values greater than one, for which the model's analytical solutions are not valid.
Title: An evaluation of the U.S.E.P.A. model MULTIMED and applicability to hydrogeologic conditions in Florida.
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Name(s): Martin, Robert Floyd, Jr.
Florida Atlantic University, Degree Grantor
Restrepo, Jorge I., Thesis Advisor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1995
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 120 p.
Language(s): English
Summary: The U.S. Environmental Protection Agency's program, MULTIMED, was evaluated using a parametric analysis and result comparisons the with programs MODFLOW and MT3D. The validity and accuracy of the MULTIMED model results were determined and independent parameter sensitivities identified. The dilution calculations in the model are sensitive to several parameters. A parameter determined critical is the seepage velocity which is used in the transport calculations of the model, as well as a "Near Mixing Factor". Under Florida's aquifer conditions, the Near Mixing Factor as calculated in the model is susceptible to overestimating the dilution of the initial concentration due to relatively high recharge rates and low hydraulic conductivities. Florida's aquifer conditions also typically result in Near Mixing Factor values greater than one, for which the model's analytical solutions are not valid.
Identifier: 15158 (digitool), FADT15158 (IID), fau:11931 (fedora)
Note(s): Thesis (M.S.)--Florida Atlantic University, 1995.
Subject(s): Sanitary landfills--Leaching--Computer simulation
Environmental Sciences
Groundwater flow--Florida
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/15158
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
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Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.