Gulf Canada Resources Ltd . Safety and Environment . In 1990, CAPP and Environment Canada launched a multi-phase study focusing on demonstrating remedial technologies for soil and groundwater contamination at natural gas facilities. The field demonstration project began in 1992 to test selected technologies. Gulf Strachan was selected as the field site where most of the remediation technologies are being applied.
Contaminants occur above and below the water table in sand and gravel, and in fractured bedrock.
Seasonal groundwater surface fluctuations of up to 2 m per year have resulted in significant smearing of condensate in both the unsaturated and saturated zones. The contaminant plume flowed into a natural wetlands and is attenuated naturally, as the wetlands outflow water remains free of hydrocarbons. A groundwater pump and treat system has been operating since 1991 to contain off-site migration. The following remedial techniques have been evaluated as part of the remedial program. Study dates are noted in brackets.