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Main Title Hydrocarbon and MTBE Removal Rates during Natural Attenuation Application.
Author Cho, J. S. ; Wilson, J. T. ;
CORP Author National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div. ;Coast Guard, Washington, DC.
Publisher 1999
Year Published 1999
Report Number EPA/600/A-99/067;
Stock Number PB99-175440
Additional Subjects Water pollution sampling ; Hydrocarbons ; Removal ; Petroleum products ; Residues ; Biodegradation ; Water table ; Plumes ; Environmental transport ; Soil sampling ; Site characterization ; Water pollution control ; Quantitative analysis ; Hydraulic conductivity ; Electron acceptors ; Natural attenuation ; Methyl tertiary butyl ether ; Nonaqueous phase liquids ; Environmental fate
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB99-175440 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Removal rates of hydrocarbons and methyl tertiary butyl ether (MTBE) from the non-aqueous phase liquid (NAPL) residual source floating over the water table were estimated with site characterization data at the petroleum contamination site in the US Coast Guard (USCG) air-base. Site characterization activities included soil and groundwater sampling, total petroleum hydrocarbon (TPH) and components analysis in soil samples, analysis of hydrocarbons and electron acceptors in groundwater, and hydraulic conductivity. Total quantities of hydrocarbons and MTBE in subsurface were estimated from soil sampling data. Dissolution rates or hydrocarbon components from the residual NAPL source into groundwater were estimated with a vertical diffusion model. Estimation of hydrocarbon and MTBE removal from the residual source in soil matrices was verified with mass balance check. Mass balance check allowed the quantitative evaluation of the fate and transport of contaminants from the sources to the sensitive receptors. The conceptual model and quantification of removal rates provided an estimation of application period of natural attenuation at the site as the plume management strategy.