Vertex Saves Wells without Disrupting Residents

Case Study - PHCs



Overview

A spill near a residential area in Quebec released petroleum hydrocarbons into the underlying groundwater and soil. The accident posed a risk to nearby wells, endangering the local water supply.

PHC contaminants included: Benzene, Toluene, Xylene


The Vertex Approach

Screen Shot 2015-08-31 at 4.56.01 PMVertex was employed to design and optimize a highly efficient, yet cost-effective in-situ remediation program. A chemical oxidation process was identified as the most suitable. A team of experts proceeded to:

  • Acquire all relevant permits
  • Analyze treatment parameters across multiple applications (unconfined sand formations, grasslands)
  • Inject an oxidant solution of activated persulphate with a hydrogen peroxide activator

Over 30,000L of oxidant solution was effectively distributed through the impacted area using a vertical well process. Remediation objectives for BTEX, F1 & F2, and F3 & F4 were met with no ongoing operation and maintenance costs.


Outcome

Screen Shot 2015-08-31 at 4.56.04 PMDisruptions for nearby residents were kept to a minimum and nearby structures were not affected by the remediation efforts. A Record of Site Condition was obtained, enabling residential land development to proceed.


Download

Download PDF