VERTEX was contracted by the owner of a 7-acre site with known historical polychlorinated biphenyl (PCB) and metals impacts associated with former junk yard operations. Prior to VERTEX’s involvement at this site, the site had gone through Phases I through V of the Massachusetts Contingency Plan (MCP); however, only a draft Remedial Action Plan (RAP) was submitted to the United States Environmental Protection Agency (USEPA). The draft RAP prepared by the prior consultant included site remediation to support the development of the site as a parking lot with an engineered barrier. VERTEX was engaged to facilitate a new remedial plan that would take into account the development of the site as a retail complex. VERTEX facilitated a loan for our client with MassDevelopment for additional assessment and an overhaul of the draft RAP.
VERTEX subsequently performed a subsurface investigation at the site to further characterize the extent of LNAPL and revise the risk assessment based on realistic exposure scenarios. Based on negotiations with USEPA, VERTEX prepared a RAP with a reduced remedial scope that included hot spot removal of LNAPL areas, installation of clean utility corridors and implementation of an engineered barrier with the application of an Activity and Use Limitation (AUL). The reworked RAP provided a significant cost savings to our client and allows the redevelopment of the site which would not otherwise be completed. This project shows VERTEX’s ability to manage PCB sites and strategically plan cost efficient remedial scenarios to allow for redevelopment to occur.