Quality Environmental Services

In-Situ Remediation

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AST has nearly a decade’s experience with the development and implementation of in-situ remedial approaches using the BOS 100® and BOS 200® as well as other injectates including chemical oxidizers, aerobic and anaerobic bioremediation solutions and chemical reduction products. AST has met cleanup goals on >90% of the sites we have injected BOS 100® and/or BOS 200®.

Keys for Successful Remediation using the In-Situ Injection Technology:

  • The Right Product – BOS 100® and BOS 200®
  • The Right Remedial Approach
  • The Right Implementation

The Right Product – BOS 100® and BOS 200® Developed by Remediation Products, Inc.

  • Provides Immediate Mass Reduction
  • Provides Immediate Plume Control
  • Work in a variety of soil and groundwater conditions
  • Applicable to a variety of contaminants
  • Non-toxic and have no impact on soil properties or groundwater quality
  • Reasonably cost-effective, at least in comparison to existing remedies.
  • A passive system, easily installed

BOS 100® is a product developed to remediate chlorinated compounds such as PCE, TCE, DCE and VC.  While BOS 200® is developed to remediate petroleum hydrocarbons including gasoline and diesel range organics and other hydrocarbons.  There are two primary treatment mechanisms take place with BOS products.

The first mechanism the BOS Products use is the “Trap”: both BOS 100® and 200® use activated carbon to absorb petroleum hydrocarbons. The second mechanism is the “Treat”; BOS 100 uses “reductive dechlorination” using zero valent iron and BOS 200® use Biodegradation, using a facultative blend of bacteria.  The BOS 200® provides an environment ideal for the biological process, where hydrocarbons are absorbed on to BOS particles, are made up of:

  • Electron Acceptors: oxygen, nitrate, ammonia and sulfate
  • Nutrients: phosphorus and nitrogen
  • Aerobic and anaerobic blend of microbes

The Right Remedial Approach – Focus on Minimizing Cost and Achieving Remedial Goals in a Timely Manner

  • Perform a detailed Site Evaluation to develop an accurate Conceptual Site Model (CSM) – This is critical to success
  • Development of a Comprehensive Remedial Design – Injection point layouts and injectate loadings on a mass/unit volume basis (lbs/ft3)
  • Pricing for Complete Remediation
  • Performance Based Pricing Upon Request

The Right Implementation

  • Right Personnel – AST’s Staff includes: Engineers, Geologists, Soil Scientists, Environmental Scientists, Drillers, Environmental Technicians and Site Managers
  • Commitment Matters – AST has invested in the right equipment and make continual improvements to our injection equipment
  • Use of effective injection technique: top down installation in clays and silty clays to eliminate short circuiting and product distribution during installation
  • Our treatment systems, specifically the injection pumps, have been designed and built to perform in any geologic setting while maintaining the same production rates of up to 70 gpm and up to 1,200 psig. The advantages of these systems include:
    • Ability to create separations in silts and clays
    • Ability to induce radial mixing and turbulent flow in sandy soils
    • Ability to maintain high daily production rates
  • Materials of construction provide the versatility to inject a wide range of reagents
  • Ability to pump highly viscous slurries and injectates
  • AST has three Geoprobe® direct push rigs including two 7822DT’s and one 54LT
  • Safety Matters – Maintain excellent safety records

Project Gallery BOS 100® & BOS 200® Assessment

Contact Key Personnel

Duane Guilfoil
dguilfoil@astenv.com (859) 846-4900

Gary Simpson
gsimpson@astenv.com (859) 846-4900

Bill Brab
bbrab@astenv.com (859) 846-4900

Nathan Thacker
nthacker@astenv.com (859) 608-1811

Mike Mazzarese
mmazzarese@astenv.com (303) 880-4714