Underground Storage Tank Closure & Reporting
Camden County Improvement Authority
Rowan University / Rutgers-Camden Board of Governors
Joint Health Sciences Center
Camden City, Camden County, New Jersey
Marathon provided regulatory underground storage tank (UST) closure services as part of a redevelopment project in Camden City, Camden County, New Jersey (the Site). The Site was comprised of 33 distinct parcels (an entire city block), all structures were demolished prior the UST closure activities. The USTs were identified on three (3) of the parcels; two (2) USTs had been identified prior to demolition, and the third UST was identified during the demolition activities.
Marathon and its Licensed Site Remediation Professionals (LSRPs) oversaw all aspects of the UST closures; tank decommissioning, post-closure soil sample collection, laboratory data analysis, and report preparation. In addition, Marathon provided real-time analysis of data collected from field observations and laboratory to identify areas of impact that would require remediation, and assess and execute the best remedial/regulatory pathway to attain an unrestricted area of concern (AOC) response action outcomes (RAOs) for each of the USTs. The identification and implementation of remedial investigation and remedial actions was completed within an expedited timeframe to comply with the overall redevelopment schedule.
Based on laboratory analytical results remedial investigation requirements were triggered for two (2) of the UST locations. Marathon reviewed the data and proposed individualized scopes of work for the two (2) impacted UST locations. For one location, the remedial investigation was limited to the vertical delineation of impacted soils and the collection of one (1) additional soil sample. In that instance, the vertical delineation as sufficient in demonstrating attainment and eliminated the need to collect a groundwater sample. The second location of impacted soils was identified for remedial action via soil excavation. The extents of the soil impact was delineated through the advancement of soil borings. During the same mobilization waste classification samples were collected to receive pre-approval at soil disposal facilities. Soil excavation activities were conducted during the next mobilization to the site. Soil samples collected from the extents of the excavation demonstrated attainment to applicable standards and supported the issuance of an unrestricted RAO. The UST closure activities and subsequent remedial investigation and remedial actions were completed within five weeks.
