T36 Fate, Effects, and Mitigation of Chemical and Fuel Releases in Surface and Subsurface Environments

Sunday, 22 October 2017
1:30 PM - 5:30 PM
Room 613/614

FIELD EVALUATION OF CONTAMINANT MASS REMOVAL IN DOLOMITE KARST

Paper number: T36-12
Program: Technical Sessions
Time: 4:10 PM – 4:25 PM

Authors

Abstract

Analytical subsurface mass removal models are often used to evaluate the accuracy and efficiency of remediation approaches. Generally, in field settings, the mass of the contaminant source is unknown and thus the models cannot be evaluated effectively. This is more difficult in karst settings which have fracture flow and perched water tables. At a site near Fittstown, OK, several passive and active remediation technologies were used and monitored after 2000 gal of diesel spilled at a municipal supply well in dolomite. Eight analytical models to estimate mass were tested to predict estimated mass removal of diesel from the various forms of remediation that were employed on the site. The analytical predictions of diesel mass removal were underestimated or overestimated depending on the remediation technology or attenuation process. Model errors compared to field data may be based on parameter sensitivity and variability, sampling methodology, or model assumption for analytical solutions. While the models did not predict the mass removed from remediation with precision, the models are useful to provide remediation options and decisions based on these estimates.

Geological Society of America Abstracts with Programs. Vol. 49, No. 6

doi: 10.1130/abs/2017AM-307012

© Copyright 2017 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.