Client: Confidential Oil Company
Location: Vineland, New Jersey
• LSRP Services/Oversight
• UST Closure
• Site/Remedial Investigation
• Remedial Action Workplan
• Remedial Action
• Response Action Outcome
Completion: June 2014
Lewis Consulting Group (LCG) was retained by the oil company to perform Licensed Site Remediation Professional (LSRP) Services pursuant to an underground storage tank (UST) system removed in 1988. LCG's scope of services included reviewing and certifying previous investigative and remedial activities, conducting comprehensive groundwater monitoring events, and preparing the appropriate Remedial Reports for the client in the most cost effective way.
Although the site was issued a No Further Action letter in 1994 for soil, additional petroleum impacted soil was encountered in 2009 during the removal of several USTs previously abandoned-in-place. Since the impacted soil was encountered immediately beneath the tanks and groundwater concentrations at the time of the removal activities reported elevated concentrations of targeted volatile organic compounds above the New Jersey Department of Environmental Protection (NJDEP) Groundwater Quality Standards Class II-A (GWQS), it was decided to over-excavate the former tank area. Therefore, all source material was remediated, allowing for the natural attenuation of groundwater to meet the NJDEP's GWQS.
LCG's scope of work included performing on-site groundwater sampling to obtain analytical results and move toward achieving concentrations below the NJDEP's GWQS. The monitoring wells located on-site were sampled in accordance with the NJDEP's Field Sampling Procedures Manual and industry standards. All activities were performed in accordance with New Jersey's Technical Requirements for Site Remediation (N.J.A.C. 7:26E).
LCG prepared a final Remedial Action Report detailing field activities and analytical results of the completed site investigative and remedial activities. Based upon over 25 years of investigative and remedial activities associated with the subject site, LCG's LSRP issued an Unrestricted Use Response Action Outcome (RAO), the equivalent of a No Further Action designation, for the area of concern, achieving final case closure with the NJDEP.