Work Plan for a Treatability Study in Support of the Intrinsic Remediation Option at PS-2

Abstract

This work plan, prepared by Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering Science, Inc. (ES), presents the scope of work required for the collection of data necessary to conduct a treatability study (TS) for remediation of groundwater contaminated with petroleum hydrocarbons at the Flightline Operable Unit PS-2 (PS-2) located at Fairchild Air Force Base (AFB), 12 miles west of Spokane, Washington (the Base). Several groundwater remedial options will be evaluated as a part of the TS report, including: bioslurping; groundwater extraction, treatment, and disposal (i.e., pump and treat); biosparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. Hydrogeologic and groundwater chemical data necessary to evaluate the various remedial options will be collected under this program; however, this work plan is oriented toward the collection of hydrogeologic data to be used as input into groundwater flow and solute transport models in support of intrinsic remediation for restoration of groundwater contaminated with benzene, toluene, ethylbenzene, and xylene (BTEX). As used in this report, the term "intrinsic remediation" refers to a management strategy that relies on natural attenuation mechanisms to remediate contaminants dissolved in groundwater and to control receptor exposure risks associated with contaminants in the subsurface. "Natural attenuation" refers to the actual physical, chemical, and biological processes that facilitate intrinsic remediation. Mechanisms for natural attenuation of BTEX include advection, dispersion, dilution from recharge, sorption, volatilization, and biodegradation. Of these processes, biodegradation is the only mechanism working to transform contaminants into innocuous byproducts. Intrinsic bioremediation occurs when indigenous microorganisms work to bring about a reduction in the total mass of contamination in the subsurface without the addition of nutrients.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1995
Accession Number
ADA384269

Entities

Organizations

  • Parsons Corporation

Tags

Communities of Interest

  • Biomedical
  • Human Systems
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Capillary Electrophoresis
  • Chemical Synthesis
  • Chemistry
  • Drinking Water
  • Ecology
  • Environment
  • Environmental Protection
  • Groundwater
  • Materials Testing
  • Measurement
  • Test Methods
  • Three Dimensional
  • Two Dimensional
  • United States
  • Volatile Organic Compounds
  • Water Resources
  • Water Supplies

Fields of Study

  • Environmental science

Readers

  • Environmental Remediation and Restoration.
  • Groundwater Contamination Remediation.

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation