REMEDIATION FOR CONTAMINATED GROUNDWATER
This case study concerns a residential property in Barnegat, New Jersey. Quick Environmental was brought in by the homeowner’s insurance company to evaluate the cleanup required to address a leak from a No. 2 heating oil underground storage tank (UST) that had been previously removed by another contractor. Time was of the essence because the contamination was situated close to the home and due to the sandy soil type found in this area of the state, the heating oil could easily and quickly reach the groundwater. Further complicating the remediation, the house was located in the New Jersey Pinelands, an area that is subject to the most stringent soil and groundwater standards in theState.
The remediation strategies proposed by other environmental contractors involved the very costly process of removing part of the basement as anticipated “collateral damage” resulting from the deep excavation of contaminated soil immediately adjacent to the house. This would have required supporting the house during the basement removal.
Quick Environmental’s team developed an action plan that involved using minimal supports and a slide-‐rail shoring system to prevent soil collapse from under the house. The shoring system was installed to a depth of 25 feet where groundwater was encountered. This allowed for dewatering and flushing of the residual groundwater contamination. This strategy resulted in the collection of compliant post-‐remedial soil and groundwater samples. A Remedial Action Report (RAR) was prepared petitioning the NJDEP for case closure. The NJDEP responded with the issuance of an unrestricted No Further Action (NFA) approval.
Quick Environmental’s experience in groundwater remediation allowed us to devise an action plan that wound up saving the homeowner thousands of dollars and gave them the results they needed in a short timeframe.