From Brownfield Cleanup Site to 3.3-Million-Square-Foot Mixed-Use Development

Sky View Parc

Project

Sky View Parc

Location

Flushing, NY

Client

C.E. Flushing, LLC

AKRF has been providing the developer of Sky View Parc in Queens with site assessment, remediation and post-development services for fifteen years. The remediation was one of the most extensive performed under New York State Environmental Conservation’s (NYSDEC) Brownfield Cleanup Program (BCP) and allowed for construction of a new 3.3-million-square-foot commercial and residential development on a former industrial property.

Between 1999 and 2005, AKRF conducted a remedial investigation of the site, consisting of soil, groundwater, non-aqueous phase liquid (NAPL), and sediment sampling. Sampling included delineating known areas of soil contamination and polychlorinated biphenyls (PCB)-containing NAPL. We negotiated a remedial plan with NYSDEC and provided oversight and management of the 2-year remediation program, which included:

  • Removal of aboveground and underground storage tanks
  • Removal of drainage structures; installation of temporary and permanent sheeting; excavation of nearly 100,000 tons of contaminated soil
  • Removal of NAPL product
  • Installation and maintenance of a vapor mitigation system, consisting of a vapor barrier and sub-slab depressurization system (SSDS)
  • Construction and maintenance of a site cover consisting of concrete, asphalt or two feet of clean fill to prevent human exposure to residual contamination

In addition to the work with NYSDEC and the New York State Department of Health (NYSDOH) related to the BCP, AKRF’s work during remediation and construction included coordination with the following agencies:

  • NYSDEC, for Petroleum Bulk Storage and Spills Programs, Tidal Wetlands, and State Pollutant Discharge Elimination System/Stormwater Pollution Prevention Plan
  • New York City Department of Environmental Protection, for Dewatering Sewer Use
  • New York City Office of Environmental Remediation, for (E) designation approvals
  • NYC Board of Standards and Appeals special permit approval related to air traffic
  • U.S. Environmental Protection Agency, related to handling and disposal of PCB remediation waste

In December 2007, Final Engineering Reports (FERs) and Site Management Plans (SMPs) were submitted and NYSDEC granted Certificates of Completion. AKRF performed post-remediation monitoring for the project, including: oversight of subsequent soil disturbances; routine groundwater and vapor sampling; negotiating subsequent reductions in groundwater and vapor sampling; negotiating approvals for passive SSDS; and performing annual inspections and reporting to NYSDEC and NYSDOH. With implementation of the SMPs, the site measures will continue to remain protective of human health and the environment in perpetuity.

Site Assessment & Remediation Overview