Remote Residence Leaked Petroleum Hydrocarbons

Case Study - PHCs



Overview

At a remote residence, petroleum hydrocarbons leaked from a UST into the underlying groundwater and soil creating a health and ecology risk to the residents and local environment. Soil concentrations of PHCs included:

  • BTEX (maximum concentration of 152 μg/g)
  • F1 & F2 (maximum concentration of 7,000 μg/g)
  • F3 & F4 (maximum concentration of 6,200 μg/g)

Scope of Work

  • Acquired all relevant permits to complete the remediation program.
  • Designed and optimized an in-situ program to maximize treatment efficiencies.
  • Implemented a program that minimized capital expenditures and infrastructure.

The Vertex Approach

  • Chemical oxidation and enhanced aerobic biodegradation
  • Multiple applications
    • Under floor slab and footing
  • Injection of chemical oxidant
    • > 1,350 kg of RegenOx
  • Injections completed using:
    • Horizontal & vertical wells

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Outcome

  • Over 5,500 L of oxidant solution delivered to impacted areas
  • Residents able to remain in house
  • Structure not affected
  • RegenOx solution effectively distributed thoroughout impacts areas
  • Remediation objectives met for:
    • BTEX
    • F1 & F2
    • F3 & F4

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