A digital model for the transport of trichloroethylene in an alluvial aquifer, Tucson, Arizona

Persistent Link:
http://hdl.handle.net/10150/191797
Title:
A digital model for the transport of trichloroethylene in an alluvial aquifer, Tucson, Arizona
Author:
Cross, Mark Manthei.
Issue Date:
1983
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Concentrations of trichloroethylene (TCE) have been detected in groundwater from wells in several areas south of Tucson, Arizona. A two-dimensional finite difference model was compiled from hydrogeologic data for an area of about 55 square miles, and was calibrated to reproduce historical water level data and compute seepage velocities for the period 1952 to 1980. The model uses the method of characteristics to solve the advection-dispersion equation. Contaminant sources were imposed at a group of TCE disposal sites at an industrial facility. Changes in concentration in the upper zone of the regional aquifer were simulated for the period 1952 to 1982. The model successfully reproduces TCE concentrations measured in groundwater from the upper zone in the area of the facility and northwest of the facility. Results for 1982 indicate that the 10 ppb contour of TCE concentration extended about 4,000 feet to the northwest of the facility.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Trichloroethylene -- Environmental aspects -- Arizona -- Pima County -- Data processing.; Trichloroethylene -- Environmental aspects -- Arizona -- Tucson -- Data processing.; Trichloroethylene -- Environmental aspects -- Arizona -- Pima County -- Mathematical models.; Trichloroethylene -- Environmental aspects -- Arizona -- Tucson -- Mathematical models.; Groundwater -- Pollution -- Arizona -- Pima County -- Data processing.; Groundwater -- Pollution -- Arizona -- Tucson -- Data processing.; Groundwater -- Pollution -- Arizona -- Pima County -- Mathematical models.; Groundwater -- Pollution -- Arizona -- Tucson -- Mathematical models.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Simpson, Eugene S.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleA digital model for the transport of trichloroethylene in an alluvial aquifer, Tucson, Arizonaen_US
dc.creatorCross, Mark Manthei.en_US
dc.contributor.authorCross, Mark Manthei.en_US
dc.date.issued1983en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractConcentrations of trichloroethylene (TCE) have been detected in groundwater from wells in several areas south of Tucson, Arizona. A two-dimensional finite difference model was compiled from hydrogeologic data for an area of about 55 square miles, and was calibrated to reproduce historical water level data and compute seepage velocities for the period 1952 to 1980. The model uses the method of characteristics to solve the advection-dispersion equation. Contaminant sources were imposed at a group of TCE disposal sites at an industrial facility. Changes in concentration in the upper zone of the regional aquifer were simulated for the period 1952 to 1982. The model successfully reproduces TCE concentrations measured in groundwater from the upper zone in the area of the facility and northwest of the facility. Results for 1982 indicate that the 10 ppb contour of TCE concentration extended about 4,000 feet to the northwest of the facility.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshTrichloroethylene -- Environmental aspects -- Arizona -- Pima County -- Data processing.en_US
dc.subject.lcshTrichloroethylene -- Environmental aspects -- Arizona -- Tucson -- Data processing.en_US
dc.subject.lcshTrichloroethylene -- Environmental aspects -- Arizona -- Pima County -- Mathematical models.en_US
dc.subject.lcshTrichloroethylene -- Environmental aspects -- Arizona -- Tucson -- Mathematical models.en_US
dc.subject.lcshGroundwater -- Pollution -- Arizona -- Pima County -- Data processing.en_US
dc.subject.lcshGroundwater -- Pollution -- Arizona -- Tucson -- Data processing.en_US
dc.subject.lcshGroundwater -- Pollution -- Arizona -- Pima County -- Mathematical models.en_US
dc.subject.lcshGroundwater -- Pollution -- Arizona -- Tucson -- Mathematical models.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairSimpson, Eugene S.en_US
dc.identifier.oclc213096398en_US
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