[CPEO-BIF] Cleanup completed at 2350 Fifth Avenue, Harlem, New York

[Lenny Siegel <LSiegel@cpeo.org>]

NYSDEC Announces Reclassification of Site on Superfund Registry;  
Certifies Cleanup Requirements Achieved at State Superfund Site

New York State Department of Environmental Conservation
February 2, 2015

The New York State Department of Environmental Conservation (NYSDEC)  
has determined that the cleanup requirements to address contamination  
related to the 2350 Fifth Avenue site (“Site”) located at 2340 and  
2350 Fifth Avenue, New York, New York County under New York State's  
Inactive Hazardous Waste Disposal Site Remedial Program (“State  
Superfund”) have been met. Please see the map for the site location.  
The cleanup activities were performed by 2350 Fifth Avenue  
Corporation (“Responsible Party”) with oversight provided by NYSDEC  
and New York State Department of Health (NYSDOH). NYSDEC has approved  
a Final Engineering Report and issued a Certificate of Completion  
(COC) for the sit.…

Completion of Project: The following activities have been completed  
to achieve the remedial action objectives:

* Construction of an temporary isolation enclosure around the  
insulation removal area and installation of negative air pressure  
units for the isolation enclosure;
* Removal and off-site disposal of the insulation materials present  
beneath the floor slab in northwest portion of the site near room  
119, and collection and analysis of endpoint samples;
* Construction and operation of a sub-slab depressurization system  
throughout the existing site building;
* Construction and operation of a soil vapor extraction system  
beneath the northwestern portion of the building;
* Injection of a chemical oxidation reagent to treat the unsaturated  
soils, saturated soils and groundwater at the site;
* Installation of recovery wells to delineate and recover light non- 
aqueous phase liquid (LNAPL) on the northern side of the site;
* Closure in-place of an underground storage tank;
* Maintenance of an existing engineered site cover consisting of  
concrete building foundations, sidewalks/pathways, asphalt roadways  
to prevent human exposure to residual contaminated soil remaining  
under the site;
* Implementation of Site Management Plan (SMP) for long term  
maintenance of the remedy including plans for: (1) Institutional and  
Engineering Controls (IC/ECs); (2) Monitoring; (3) Operation and  
maintenance; and (4) reporting; and
* Recording of an Environmental Easement to ensure implementation of  
SMP.

For the entire fact sheet, see
http://www.dec.ny.gov/data/der/factsheet/231004coceng.pdf

For my reports on this site, see
http://www.cpeo.org/pubs/2350FifthExposures.pdf
and
http://www.cpeo.org/pubs/2350FifthROD.pdf

--

Lenny Siegel
Executive Director, Center for Public Environmental Oversight
a project of the Pacific Studies Center
278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
<lsiegel@cpeo.org>
http://www.cpeo.org

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