Hydrogeologic Conditions Controlling Contaminant Migration from Storage Tanks Overlying Mississippi River Alluvium


Schmitz, Darrel

Committee Member

Mylroie, John

Committee Member

May, James

Date of Degree


Original embargo terms

Visible to MSU only for 3 years

Document Type

Graduate Thesis - Open Access


Department of Geosciences


Delta Store #3033 in Indianola, MS is suspected of having had a release of petroleum, which may have contaminated the underlying soil and shallow groundwater. Exploratory boring/monitoring wells were drilled on-site noting all soil formations and groundwater encountered. The soil facies encountered show a fining upward sequence, representative of a fluvial depositional environment. Soil contamination is mostly confined to the surficial soil; however, evaluation of lab data, boring logs, and cross sections suggests it is likely the contamination migrated through the surficial confining layer into the underlying strata. The hydraulic conductivity of 1.2 x 10-5 cm/sec, surficial geology consisting mostly of low and some high plasticity clays (CL and CH), a hydraulic gradient of 0.01 to 0.02 ft/ft, and the presence of an overlying concrete pavement suggests that any recent release of hydrocarbons should be confined to the immediate vicinity under the site.



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