ENB - REGION 2 NOTICES

        
Completed Applications Consolidated SPDES Renewals
Availability of Voluntary Cleanup Project Work Plan for Comment

Project Title: USPS -Gowanus Former Manufactured Gas Plant, Site No. V00405-2

Project Location: 124-136 Second Avenue, Brooklyn, Kings County, NY, Region 2

Brief Project Description: The site occupies 9.4 acres of currently undeveloped land in a mixed commercial/industrial area adjacent to the Gowanus Canal. Adjoining properties include an oil distributor, a garbage truck maintenance facility, a school district warehouse, and a grocery store and attached strip mall. Residential areas are located within a few blocks to the east and west.

Contamination results from operation of a manufactured gas plant (MGP) on part of the site from roughly 1880 to the late 1930s. The actual MGP facility was located where the neighboring grocery store stands today; however, three MGP gas holders were located on the southern portion of this site. The holder foundations are still present in the subsurface and contain up to eight feet of tar-saturated soils. Substantial amounts of tar-saturated soils are also present in the areas surrounding the former gas holders, extending to great depths (40-80 feet) below the site, making full recovery of tars under any remediation scenario impracticable. No tar-impacted soils are present at the surface since a 4-foot layer of crushed concrete has been placed over the tops of the holder foundations. Beyond the immediate vicinity of the holders, the northern 2/3 of the site is largely unimpacted.

Overview of the Remediation Plan: The remedy for the gasholders has been revised as detailed below; the remaining elements of work remain the same as what was identified in the April 2001 ENB notice. Gasholders: Under the previous proposal released to the public in April, contaminated soil within the gasholders would have been treated in situ to remove coal tar. A combination of hot water flushing and vapor extraction was proposed. Further investigation of the site showed that the gas holders contain a smaller volume of contaminated soil than had been expected. At the same time, pilot tests of the proposed in-situ treatment process were not entirely successful.

As a result, the volunteer has proposed to excavate all of the contaminated soil from the gasholders and transport it off-site for treatment and disposal. The resulting excavations would then be backfilled with clean fill to bring the ground surface back to its original level. This revision to the work plan is more protective than the originally proposed plan, since it will leave less residual contamination behind on the site. Consequently, NYSDEC supports the revised approach to site cleanup.

Under the new proposal, all excavation and handling of contaminated soil from the gas holders would be performed inside a temporary structure, which would be erected on the site to help control vapor emissions during excavation. Air would be drawn from the outside into the structure, and then treated to remove vapors before being discharged back to the atmosphere. NYSDEC has used this system at other MGP excavation sites elsewhere in New York State with satisfactory results.

It has not yet been determined whether a single structure will be used to enclose all three gasholders at the same time, or if a smaller structure can cover one holder at a time and then be moved as excavation proceeds.

Some soil may be temporarily held in loaded roll-off containers while waiting for off-site transportation. Any such containers will be covered to eliminate the potential for odors to escape.

Shallow coal-tar contaminated soil above the meadow mat layer (less than 20 feet below grade): Hot spots of shallow contaminated soil will be excavated for off-site treatment and disposal.

Mobile coal tar below the meadow mat layer (more than 20 feet below grade): Collection wells will be installed in areas of mobile tar. Coal tar removed from the wells will be disposed off-site.

Vapors in shallow soils: Any enclosed structure constructed above the former gasholder area will be designed with a vapor barrier and sub-slab vapor collection system.

The intended use of the site is as a commercial/retail establishment, taking advantage of ready access from the Brooklyn-Queens Expressway. The exact configuration of the development has not been determined, but it is anticipated that the site will be fully covered with buildings or pavement.

Public Comment Period ends: January 4, 2002

Contact: Gardiner Cross
NYS Environmental Conservation
Division of Environmental Remediation
625 Broadway, 11th Floor
Albany, NY, 12233-7017
Phone: (518) 402-9662


Negative Declaration

New York City (Kings) County - The Empire State Development Corporation, as lead agency, has determined that the proposed Hoyt-Schermerhorn Property Dispositions will not have a significant adverse environmental impact. The action involves the phased sale of the ESDC-owned sites through a developer RFP process. Block 176 will be the first site offered for sale, followed by the sale of Blocks 170 and 171. Disposition is the only ESDC discretionary action; no City actions are expected as part of the project. The development of the sites will be subject to the requirements set forth by the Schermerhorn-Pacific Urban Renewal Project , ESDC Design Guidelines, and underlying zoning. The project is located on certain parcels within three blocks in Brooklyn, NY, generally bounded by Schermerhorn Street to the north, State Street and Atlantic Avenue to the south, Bond Street to the east and Smith Street to the west (Block 170, Lots 1, 6, 41 and 52; Block 171, Lots 1, 2 and 43; and Block 176, Lots 1 and 57).

Contact: Rachel Shatz, Planning and Environmental Review, Empire State Development Corporation, 633 Third Avenue, New York, New York 10017, phone: (212) 803-3252.


New York City (Brooklyn) County - The New York City Department of Housing Preservation and Development, as lead agency, has determined that the proposed Glenmore/Pitkin Partnership will not have a significant adverse environmental impact. The action involves new construction of three, three-story, two-family houses with a total of six housing units for low income families. The project is located on Block 4001, Lots 11, 35, 36 in Brooklyn.

Contact: Beverly Reith, Environmental Review, Office of Planning and Intergovernmental Affairs, 100 Gold Street, New York, New York 10038.


New York City (Brooklyn) County - The New York City Department of Housing Preservation and Development, as lead agency, has determined that the proposed Bedford Stuyvesant Neighborhood Builders Project will not have a significant adverse environmental impact. The action involves the new construction of two, two-family, two-story homes to provide four units on a city-owned vacant land. In addition, parking will be provided for each unit. The project is located on Block 1971, Lots 17-18, Brooklyn.

Contact: Beverly Reith, Environmental Review, Office of Planning and Intergovernmental Affairs, 100 Gold Street, New York, New York 10038.


Notice of Acceptance of Final EIS

New York City County - The New York City Planning Commission, as lead agency, has accepted a Final Environmental Impact Statement on the proposed Memorial Sloan-Kettering Cancer Center Campus Rezoning. The action involves expansion of the research and diagnostic and treatment facilities, housing for patients who must be near the hospital for treatment, and includes a rezoning from R8 to R9 of the midblocks in two blocks and the designation of the campus as a Large-Scale Community Facility Development. The project is located on three blocks between First and York Avenues and East 66th and 69th Streets on the Upper East Side of Manhattan.

Contact: Robert Dobruskin, City Planning Commission, 22 Reade Street, 1W, New York, New York 10007, phone: (212) 720-3423.