Natural attenuation of MTBE in an established ground water plume - A natural gradient tracer study

I. Amerson-Treat, R. L. Johnson

Research output: Contribution to journalConference article

Abstract

A natural gradient tracer study was conducted at the Advanced Fuel Hydrocarbon National Test Site and Port Hueneme, CA, to determine the natural attenuation of MTBE within the dissolved contaminant plume. The presence of petroleum hydrocarbons (BTEX and MTBE) resulted in oxygen depletion within the established gasoline plume. A numerical model of the groundwater flow at the site was developed to better understand the significance of advection/dispersion and degradation to the transport of MTBE. Water quality was monitored through several parameters, e.g., pH, methane, CO2, BTEX, and MTBE. The 2H12-MTBE and bromide mass balance were used to assess MTBE attenuation. Concentrations in the existing MTBE plume and degradation products, such as tert-butyl alcohol, were monitored to confirm degradation. Expected results include the mass balance calculations and evidence of degradations, trends in water quality data, evaluation of advective and dispersive action, and preliminary numerical model development. Original is an abstract.

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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