Site Investigation And Remediation Services
CORE provided Site Investigation, Remediation Design, Construction
Oversight, and Operation and Maintenance (O&M) at Mendon’s 840
Garrison Avenue facility in Bronx, New York. Under the remediation
contract, CORE evaluated existing Site investigation data, developed
and conducted Site-specific subsurface investigations, and evaluated data
to determine the extent of migration of subsurface impacts to soil and
In-depth evaluations of impacts to soil and groundwater and soil vapor
extraction (SVE) system pilot study data results were summarized and a
preliminary design was recommended in a Remedial Action Plan (RAP).
The SVE system was comprised of eight extraction wells connected to
a vacuum blower system. The goal of the SVE system was to address
elevated concentrations of volatile organic compounds (VOCs) and semi-
volatile organic compounds (SVOCs) in subsurface media as a result of
an on-Site release. The RAP was submitted to, and approved by, the New
York State Department of Environmental Conservation (NYSDEC).
In conjunction with the RAP, CORE negotiated NYSDEC stipulation
agreements for remediation system operation and permit acquisition.
Following NYSDEC approval, CORE prepared design drawings and
specifications for the SVE system. CORE also performed construction
management services during remedial activities, including bid package
preparation and bid assistance, shop drawing review, construction
inspection, and remedial system start-up. The SVE system was operated
between March 2006 and March 2008. During that time, CORE
provided O&M services, monthly Site monitoring, and prepared monthly
Site monitoring reports for submittal to NYSDEC. Based on the results
of additional soil testing that indicated no VOCs or SVOCs were present
in Site subsurface media, CORE recommended spill closure in December
2008. NYSDEC granted spill closure in 2009.