Richmond, BC
Contaminants: 11,500 m3 of PHC (F1-F4) impacted soil and groundwater
This project has been completed. Site contamination consists of TPHs and BTEX that exceed criteria both in the soil and groundwater. Remediation approach consists of delivering HMM bioproducts to the contaminated zones followed by air sparging/bioventing to supply aerobic bacteria with oxygen. Directional drilling was utilized to install horizontal injection wells at depths of up to 4.5 metres. "Big O" piping was used to construct the extraction system.
Project Value: $ 750,000


Ancaster, On
Contaminants: BTEX, PHCs (F1-F4) in soil and groundwater
Soil and groundwater was contaminated to a depth of 8 m with BTEX and TPH (g/d) with concentrations ranging up to 17,000 mg/kg and free product fuel present. The volume soil that was treated was 7,500 m3. The treatment criteria for the project were Table A of 1997 MOE Guidelines. The remediation design consisted of horizontal and vertical bioproduct and oxygen injection wells along with header piping connected to blowers that were operated on a continuous basis. The project was completed by HMM on a design/construct/operate turnkey contract basis. Successful treatment was achieved in conjunction with excavating a 750 m3 area which was successfully treated on site using exsitu bioremediation technology.