1133 Manhattan Ave & 6 Box St, Brooklyn, NY 11222

Greenpoint

brownfield, VOCs, "Vapor Intrusion"

M. Hiller and Son, Inc.
Site Description[1] 
Location: The Former BRT Railroad Car Barn site is located in an urban area in the Greenpoint section of Brooklyn, and is known as 6-16 Box Street and 1121-1137 Manhattan Avenue. It is comprised of two tax parcels known as Block 2482 Lot 26 and a portion of Lot 21. Site Features: The footprint of both lots is developed with 1-story warehouse buildings. Lot 26 contains one concrete block warehouse building and Lot 21 contains 1 brick warehouse building. Current Zoning/Use(s): Both Lot 21 and Lot 26 are zoned M1-2/R6A. The M1 district is often a buffer between M2 or M3 districts (manufacturing/industrial) and adjacent residential or commercial districts. Lot 21 is currently vacant with the exception of a stone countertop fabrication company which occupies a small part of the building that fronts on Clay Street. Lot 26 is currently used for storage but was most recently occupied by a used clothing wholesaler. Historic Use(s): the site was developed prior to 1887 with multiple 3-story buildings that were utilized by the Brooklyn Crosstown Rail Road. By 1916, the site was utilized by the Brooklyn Rapid Transit (BRT) as a rail road car barn for the Cross Town Division. The northwest corner of the building was utilized as a repair shop and two boilers were housed within the repair shop. Other companies that conducted similar operations within the building in the 1940s and early 1950s include the Brooklyn and Queens Transit Corporation and the New York City Transit System. In 1953, the site was redeveloped again with the two adjacent buildings that currently occupy the subject site lots. The building was utilized as a hardware warehouse in the 1960s and 1970s and was utilized by M. Hiller & Son, Inc. as a rags and used clothing distributor/warehouse since the company purchased the property in 1977. Site Geology and Hydrogeology: Subsurface soils at the site are primarily made up of urban fill material to an approximate depth of 1 to 5 feet below slab grade, followed by fine sand, silt and sandy clay to 15 feet below slab grade. It should be noted that slab grade of the buildings is 3 to 4 feet above street level along Box street and Manhattan Avenue. According to the USGS topographic map for the area, the elevation of the property is approximately 14 feet above mean sea level. The topography within the immediate area slopes gradually from southeast to northwest. Groundwater at the site exists at approximately 8 feet below grade and flows in a northwest direction.

Summary of Project Completion Dates
Projects associated with this site are listed in the Project Completion Dates table and are grouped by Operable Unit (OU). A site can be divided into a number of operable units depending on the complexity of the site and the number of issues associated with a site. Sites are often divided into operable units based on the media to be addressed (such as groundwater or contaminated soil), geographic area, or other factors.

Site Environmental Assessment

Nature and Extent of Contamination: Petroleum contamination associated with the underground storage tank (UST) was identified, including non-aqueous phase liquid (NAPL). Elevated levels of SVOCs, as well as lead and copper, are present in soil beneath the site at concentrations which exceed unrestricted use soil cleanup objectives (SCOs). These contaminants have been detected in soil between 0 to 10 feet below grade. These include benzo(a)anthracene (up to 62 ppm), benzo(a)pyrene (up to 51 ppm), benzo(b)fluoranthene (up to 71 ppm), benzo(k)fluoranthene (up to 21 ppm), chrysene (up to 56 ppm), dibenzo(a,h)anthracene (up to 3.6 ppm), fluoranthene (up to 160 ppm), indeno(1,2,3-cd)pyrene (up to 12 ppm), phenanthrene (up to 140 ppm), pyrene (up to 140 ppm), arsenic (up to 17.6 ppm), chromium (up to 54.9 ppm), copper (up to 151 ppm), mercury (up to 2.95 ppm), manganese (up to 2880 ppm), lead (up to 472 ppm), nickel (up to 34.9 ppm), zinc (up to 476 ppm). Elevated levels of VOCs and SVOCs have been detected in groundwater at concentrations exceeding the TOGS 1.1.1 Class GA standards. These include 1,2,4-trimethylbenzene (up to 280 ppb), 1,3,5-trimethylbenzene (up to 86 ppb), benzene (up to 3.5 ppb), ethylbenzene (up to 74 ppb), isopropylbenzene (up to 18 ppb), m/p-xylenes (up to 130 ppb), n-butylbenzene (up to 7.6 ppb), n-propylbenzene (up to 34 ppb), o-xylene (up to 130 ppb), toluene (up to 11 ppb), naphthalene (up to 22,000 ppb), benzo(a)anthracene (up to 6.1 ppb), benzo(b)fluoranthene (up to 8.1 ppb), benzo(k)fluoranthene (up to 3.3 ppb), chrysene (up to 5.4 ppb), fluoranthene (up to 540 ppb), indeno(1,2,3-cd)pyrene (up to 2.5 ppb), phenanthrene (up to 13,000 ppb), pyrene (up to 1300 ppb).

Site Health Assessment
Direct contact with contaminants present in the soil is unlikely because the site is covered with building foundations. Contaminated groundwater at the site is not used for drinking or other purposes and the site is served by a public water supply that obtains water from a source not affected by this contamination. Volatile organic compounds in the groundwater may move into the soil vapor (air spaces within the soil), which in turn my move into overlying buildings and affect the indoor air quality. This process, which is similar to the movement of radon gas from the subsurface into the indoor air of buildings, is referred to as soil vapor intrusion. Soil vapor intrusion sampling has indicated that on-site inhalation exposures are not a current concern. However, the potential exists for people to inhale site contaminants in indoor air due to soil vapor intrusion in any future on-site building development and occupancy. Contaminants of Concern
Type of Waste Quantity of Waste
1,2,4-TRIMETHYLBENZENE UNKNOWN
ARSENIC UNKNOWN
BARIUM UNKNOWN
BENZ(A)ANTHRACENE UNKNOWN
BENZENE UNKNOWN
BENZO(A)PYRENE UNKNOWN
BENZO(B)FLUORANTHENE UNKNOWN
BENZO[K]FLUORANTHENE UNKNOWN
CHROMIUM UNKNOWN
Chrysene UNKNOWN
COPPER UNKNOWN
DIBENZ[A,H]ANTHRACENE UNKNOWN
ETHYLBENZENE UNKNOWN
FLUORANTHENE UNKNOWN
FLUORENE UNKNOWN
indeno(1,2,3-cd)pyrene UNKNOWN
LEAD UNKNOWN
MANGANESE UNKNOWN
NAPHTHALENE UNKNOWN
NICKEL UNKNOWN
O-XYLENE UNKNOWN
P-XYLENE UNKNOWN
PHENANTHRENE UNKNOWN
PYRENE UNKNOWN
TOLUENE UNKNOWN
ZINC UNKNOWN
  1. DEC Environmental Site Remediation Database.  Site Name: "Former BRT Railroad Car Barn".

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