ORC Replaces SVE at Brownfield Site


Courtesy of Regenesis

Site Summary

A former service station was located on prime real estate in downtown San Francisco. Redevelopment was planned for the site, however, due to residual BTEX groundwater contamination, construction activity was halted. A soil vapor extraction (SVE) system previously operated at the site for approximately one year. This approach was not successful in reducing BTEX concentrations to acceptable levels. SVE contaminant reduction became asymptotic and continued use was not cost-effective. The redevelopment project was held up indefinitely and stakeholders risked major financial loss. The installation of Oxygen Release Compound (ORC®) was identified as the best alternative to reach cleanup goals. Within 6 months of the ORC application, the site was granted No Further Action status and construction resumed.

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