City of New York Brownfield Sites New York State Environmental Restoration Program, Site Investigation and Remedial Alternatives Study and Targeted Site Assessment
Posted on June 12, 2015
Client: New York City Economic Development Corporation New York State Department of Environmental Conservation
Location: Bronx and Manhatten, New York
Project Type: New York State Environmental Restoration Program, Site Investigation and Remedial Alternatives Study and Targeted Site Assessment
Project Cost: $459,000
This project includes the performance of a Site Investigation and preparation of a Remedial Alternatives Report at the Barretto Point Site in the Bronx, New York, for the New York City Economic Development Corporation and the New York City Department of Environmental Protection. The Barretto Point Site is a 13-acre property planned for redevelopment by the City of New York. The site was formerly used for industrial purposes, including a metal working facility, a storage and distribution facility for sand and gravel, an asphalt plant, a paint and varnish manufacturer, a boat yard and a food products manufacturer. The Site Investigation and Remedial Alternatives Study was conduced as part of New York City’s Brownfield Program with funding from the New York State Clean Water/Clean Air Bond Act Environmental Restoration Program.
The following tasks were performed as part of this project:
- Preparation of a comprehensive site-specific Health and Safety Plan and generic Quality Assurance Project Plan for Brownfield site investigations.
- Performance of a site inspection to verify sample locations and evaluate site access. The results of the site inspection were described in a letter report, which also included recommendations regarding additional sampling in areas of potential environmental concern identified during the site inspection.
- Oversight of land clearing and construction of a grid network for geophysical surveys and soil vapor/groundwater screening survey.
- Oversight of geophysical surveys to evaluate potential subsurface contamination at previously identified areas of potential environmental concern based on historic site uses.
- Collection and analysis of soil vapor and groundwater samples (utilizing a Geoprobe rig and both on-site and off-site laboratories) to evaluate potential subsurface contamination.
- Construction of soil borings, and excavation of test pits and test trenches to evaluate subsurface conditions at the site, with laboratory analysis of soil samples for site characterization.
- Collection and analysis of surface soil samples in areas of potential environmental concern and background location.
- Construction of monitoring wells at upgradient and downgradient locations.
- Collection of groundwater samples from new and existing monitoring wells, and collection of surface water sample at an area of ponded water.
- Performance of a tidal study to evaluate the effect of tides on the groundwater flow system at the site.
- Preparation of qualitative Human Health and Wildlife Exposure Assessments to evaluate the potential impacts of identified contamination to on-site and nearby receptors, based on both current conditions and planned future redevelopment of the site.
- Development of comparison criteria for all media, based on the planned redevelopment of the site.
- Preparation of a Site Investigation Report, including the results of the field program at the site, and recommendations regarding additional sampling and site remediation.
- Preparation of a Remedial Alternatives Study Report identifying, describing and evaluating potential remediation alternatives for all media requiring remediation, and development of a remedial plan for the site based on the planned use of the property.
- Preparation of a topographic map for a portion of the site in support of site redevelopment.
- Presentations at public meetings held to present the investigation results and selected remedial action.
In addition, the firm completed a Brownfield site investigation at a former film storage warehouse in Manhattan. The project site is comprised of a three-story building that has been vacant for approximately 50 years. This project was conducted under contract to the New York State Department of Environmental Conservation (NYSDEC) and was funded under a grant from the USEPA Targeted Brownfields Site Assessment Program. The project scope included subslab soil vapor sampling, shallow subsurface soil sampling, floor drain sediment sampling, standing water sampling, asbestos and lead-based paint surveys, and report preparation. Although the scope also included collection of upgradient and downgradient groundwater samples, bedrock was encountered before groundwater was reached. As a result, groundwater was not sampled.
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