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Evaluation of Selected Ground Water Abatement Strategies for Two Produced Water Impact Sites

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/3543

Evaluation of Selected Ground Water Abatement Strategies for Two Produced Water Impact Sites

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Title: Evaluation of Selected Ground Water Abatement Strategies for Two Produced Water Impact Sites
Author: Lee, Katharyn M.
Subject(s): produced water management
ground water abatement
New Mexico Oil Conservation Division
point source treatment
natural attenuation
vadose zone remedy
saltwater disposal system
Federal Underground Injection Control (UIC) program
Ogallala aquifer
Petroleum Storage Tank Bureau
Abstract: Past practices of produced water management in southeastern New Mexico have caused impact to ground water at numerous locations. Impacted ground water shows elevated levels of dissolved solids, including chloride and in some cases petroleum hydrocarbons. Operators must abate ground water impacts to comply with New Mexico Oil Conservation Division Rules. This paper discusses the environmental costs associated with several ground water abatement strategies that might be employed to cause ground water quality to meet the New Mexico ground water standard for chloride (250 mg/L). This investigation examines two sites that exhibit ground water chloride concentrations ranging from 5,000 mg/L to 1,500 mg/L caused by past produced water releases. Several strategies to abate contamination could be employed, including natural attenuation alone, a vadose zone remedy, point-of-use treatment and a pump-and-treat ground water remedy. Each strategy was evaluated based on ground water cleanup effectiveness, economic and environmental costs. Applicable regulations concerning ground water impact under both the New Mexico Oil Conservation Division (NMOCD) and the New Mexico Environment Department are presented and discussed. After operating a point-of-use treatment system at one site for several months and evaluating the efficacy of natural attenuation at the second site, a strategy of natural attenuation appears to be best for the environment and compliance with NMOCD Rules. Lessons learned are applied to a decision tool regarding the environmental impact and ease of operation of similar systems for the future.
Date: 2007-12-13
Description: A Professional Project Report submitted in partial fulfillment of the requirements of the degree of Master of Water Resources, Water Resources Program, University of New Mexico.
URI: http://hdl.handle.net/1928/3543

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