AuthorHerman, Sandra Eberlein.
KeywordsChild sexual abuse -- Arizona -- Tucson.
Sexually abused children -- Arizona -- Tucson.
Incest -- Arizona -- Tucson.
Child abuse -- Arizona -- Tucson.
Mother and child -- Arizona -- Tucson.
MetadataShow full item record
PublisherThe University of Arizona.
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.
Degree ProgramGraduate College
Counseling and Guidance
Degree GrantorUniversity of Arizona
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A digital model for the transport of trichloroethylene in an alluvial aquifer, Tucson, ArizonaCross, Mark Manthei.; Simpson, Eugene S. (The University of Arizona., 1983)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.