Brickstone Properties: The Collins Building, Philadelphia, PA
The challenge: The properties were built in the late 19th century and posed multiple contaminant risks onsite including asbestos and lead-based paint. Ransom also addressed PCBs, which impacted soils, concrete and other building materials. Remediation of such environmental conditions can typically take up to one year. However, our team made a push to work within Brickstone’s expedited time frame.
Ransom worked closely with PA DEP and the US EPA through the Once Cleanup Program, as the PCB-impacted equipment, debris, and flooring are considered regulated wastes under the US Toxic Substance Control Act (TSCA). Much of the material had to be managed as “mixed” TSCA (i.e. PCB-impacted) and asbestos waste. However, due to the significantly higher cost of disposal for PCB-impacted waste, the materials were segregated in an effort to minimize disposal costs and the site was remediated in accordance with the client’s aggressive development schedule.
During the investigation activities, trichlorobenzene was detected in the soils. Ransom provided options and conducted a costs analysis to address the concern of vapor intrusion. As part of this process, Ransom designed a vapor barrier to mitigate the problem.
Scott Bisbort, LSRP