Blazosky Associates, Inc. (BAI) was contacted by a national quarry corporation to assess the impacts of a historic diesel fuel release at one of their sites.  BAI evaluated shallow subsurface soils in the immediate vicinity of a former Above Ground Storage Tank (AST) location to determine if impact had occurred.  This assessment was conducted in accordance with PaDEP Act 2 guidelines, as the client required a release from liability so that they could construct an expansion to an existing building over the location.  Additionally, in order to comply with their surface mine bonding requirements, the client also required that the site meet attainment standards for residential use. 

Discrete soil samples were collected from test borings advanced in the vicinity of the AST location.  The results from these samples indicated the presence of Naphthalene at concentration levels that slightly exceeded the Residential Statewide Health Standard.  Therefore, in order to gain Act 2 release from liability, the PaDEP required that remediation be conducted. 

Following characterization, the soils associated with the former AST area were excavated.  Approximately 220 cubic yards of impacted material was removed and properly disposed of at an off site location.   Analyses of confirmatory soil samples from the excavation indicated that all test parameters were below  Act 2 Medium Specific Concentration (MSC) values.

 Due to BAI's thorough knowledge of Act 2 regulations and timely response, the client was able to obtain the release from liability and completed their building expansion on time.