Industrial Site in New Jersey

Case Study - PHCs



Overview

At an industrial site in New Jersey, historical leakage from a UST released petroleum hydrocarbons into the underlying groundwater and soil creating a health and ecology risk to overlying and down gradient receptors. Soil concentrations of PHCs included:

  • BTEX (maximum concentration of 1,140 μg/g)
  • F1 & F2 (maximum concentration of 4,200 μg/g)
  • F3 & F4 (maximum concentration of 1,100 μg/g)

Scope of Work

Vertex staff:

  • 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
  • Overburden formation
  • Multiple applications
    • Under parking lot and roadway
  • Injection of chemical oxidant
    • Activated Persulphate
    • Hydrogen peroxide activator (Klozur)
  • Injections completed using:
    • Vertical wells

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Outcome

  • Over 40,000 L of oxidant solution delivered to impacted areas
  • Minimal disruption to operations
  • Nearby structures not affected
  • Persulphate solution effectively distributed thoroughout impacts areas
  • Remediation objectives met for:
    • BTEX
    • F1 & F2
    • F3 & F4
  • Record of Site Condition Obtained

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