Removal of UST’s and Replacement with AST’s at a Commercial Outlet


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Tri-Phase was retained to decommission former tire lube locations across Ontario.

The scope of work included decommissioning and removal of the underground oil/water separators (OWS), visual inspection of floor trench drains, sump pits, all associated piping regarding the OWS and the sump pits, as well as removal of subsurface materials and contaminated soil and groundwater.

Other minor work included isolating all work areas with appropriate fencing and gates, pressure washing and pumping the OWS prior to disposal, saw cutting and disposal of all concrete associated with work areas.  In addition, Tri-Phase also backfilled, site graded and compacted all excavated areas and restored all sites to their original condition.

All work was completed on time and within budget.