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Main Title UST corrective action technologies : engineering design of free product recovery systems /
Author Parker, Jack C. ; Waddill, D. W. ; Johnson, J. A.
Other Authors
Author Title of a Work
Waddill, Dan W.
Johnson, Jeffrey A.
CORP Author Environmental Systems and Technologies, Inc., Blacksburg, VA.;National Risk Management Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Year Published 1996
Report Number EPA/600/R-96/031; PB96-153556; EPA-68-C2-0108
Stock Number PB96-153556
Subjects Groundwater--Pollution ; Soils--Pollution ; Oil spills--Environmental aspects ; Underground storage tanks ; Soil--Pollution
Additional Subjects Underground storage ; Storage tanks ; Water pollution control ; Remediation ; Oil spills ; Plumes ; Hydrocarbons ; Monitoring wells ; Design ; Oil spreading process ; Oil spreading rate ; Hydrostatic pressure ; Flow profiles ; Capillary fringe ; Oil-water interfaces ; Free surfaces ; Steady flow ; Pumping ; Soil contamination ; Nonaqueous phase liquids ; Free product recovery ; Vadose zone
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB96-153556 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 82 pages : illustrations ; 28 cm
The objective of this project was to develop a technical assistance document for assessment of subsurface hydrocarbon spills and for evaluating effects of well placement and pumping rates on separate phase plume control and on free product recovery. Procedures developed for estimation of hydrocarbon spill volume include interpolation and spatial integration of measurements from soil cores, and fluid level data from monitoring wells. The first method involves vertical integration of soil concentration measurements to yield oil volume or species mass per unit area followed by kriging and areal integration to estimate the total mass or volume within the measurement zone. The second method involves kriging of well fluid levels, calculation of free oil volume per area using a physically based model for vertically hydrostatic three phase fluid distributions that converts well product thickness to soil product thickness, followed by areal integration to estimate the volume of free product floating on the water table. A procedure is presented to evaluate effects of steady-state water pumping from multiple point sources on the oil flow gradients to evaluate if hydraulic control of plume spreading will be obtained for a selected system of pumping wells and/or trenches. The applicability of trenches and vacuum-enhanced product recovery to hydrocarbon spills is also discussed.
Includes bibliographical references. Microfiche.