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Home Depot Derby, Connecticut

Derby, Connecticut

Services: Investigation
Clients Served: Industrial

Due to its favorable location, the site became the proposed location of a new Home Depot retail facility. The proposed site development plan included the construction of an 116,000± square-foot commercial building with paved parking lots and drives covering the majority of the site. The 11.3-acre site was formerly occupied by an industry engaged in the manufacture and repair/reconstruction of large industrial equipment. Historical operations at the site included an on-site foundry and operations associated with the manufacturing and repair of large industrial equipment. Numerous underground storage tanks containing a variety of petroleum products were present at the site. Potential contaminants included chlorinated volatile organic compounds, petroleum hydrocarbons, semi-volatile organic compounds, polychlorinated biphenyls, and heavy metals.

The site characterization investigation consisted of numerous types of investigative techniques. These included the performance of several soil vapor screening surveys, continuous soil sampling from each soil boring and monitoring well borehole, low flow/low stress groundwater sampling from all existing and newly installed wells, evaluation of aquifer characteristics from in-situ testing, and laboratory analysis of soil samples for physical parameters. Laboratory analysis of soil and groundwater samples was performed for all constituents of concern at the site. Due to the potential for dense non-aqueous phase liquid (DNAPL) to be present in the subsurface, the work also included an assessment of data to address the fate and transport of DNAPL and dissolved contamination.

Based on the three dimensional extent of contamination, Loureiro developed a remediation plan integrating the future site development plan with the necessary excavation and/or relocation of contaminated soil. The plan saved our client millions of dollars, when compared to conventional dig and haul remediation.

Highlights

  • Over 40 monitoring wells installed
  • Over 100 soil vapor screening points
  • Several-hundred soil borings advanced
  • Characterization of dozens of potential release areas
  • Assessment of multiple releases and release mechanisms
  • Characterization of over 100,000 cubic yards of contaminated soil