Viele Ave & Baretto St, Bronx, NY 10038

Hunts Point

brownfield, VOCs, "Vapor Intrusion"

NYC Dept of Parks & Receation
Site Description[1] 
Location: The Barretto Point Environmental Restoration Site consists of a 13-acre City-owned waterfront parcel in a predominantly industrialized area of the South Bronx (Hunts Point) and is located immediately adjacent to the Hunts Point Sewage Treatment Plant. The site is somewhat remote from residential population centers in Hunts Point and has very heavy tractor trailer truck traffic associated with solid waste transfer stations and other commercial uses. Site Features: The property is completely fenced. Five acreas in the northwestern portion of the site has been redeveloped and is now the location of the Barretto Point Park. The remainder of the site is covered with 2 acres of clean soil, vegetation, or a layer of asphalt and/or gravel and is vacant except for construction trailers associated with the Hunts Point Water Pollution Control Plant upgrade project. Current Zoning/Use: The northwestern portion of the site is being used as a park (Barretto Point Park) and is zoned for recreational use. The remainder of the site is zoned for commercial/industrial use. Historical Use: Most of the northwest portion of the site was the location of a sand and gravel operation. An asphalt plant was located in the southwest corner of Barretto Street and Ryawa Avenue, and framed coal pockets (structures likely used for the storage of coal) were located to the west along the East River. In the northeastern portion of the site, industries included a paint and varnish manufacturing facility. By 1991, the structures mentioned above were no longer present on the site. As a result of these historic operations, on-site soils were contaminated with elevated levels of VOCs, PAHs and metals. Site Geology and Hydrogeology: The site is underlain by fill material, till deposits and weathered bedrock. Fill material was encountered in all soil borings and test pits at thicknesses ranging from one to more than 15 feet. The fill material generally is comprised of a mixture of sand, silt, gravel and cobbles with varying amounts of construction and demolition debris (including concrete, bricks, asphalt, wood, scrap metal, tires, plastic, cloth, paper, glass, cinders and/or ash). Beneath the fill, the site is generally underlain by poorly to moderately graded compacted till which ranges in thickness from approximately 6 to 20 feet. The till consists of fine to medium sand, silt and fine to course gravel with trace amounts of clay. Varying amounts of cobble, boulders and weathered rock fragments are also part of the till. The till was not observed above the weathered bedrock in the western portion of the site. This may be the result of this portion of the site being historically within the East River. Weathered bedrock was encountered below the fill or till at depths ranging from approximately 14 feet to 24 feet below ground surface. The weathered rock was identified as black-gray mica schist. The depth to groundwater at this site ranges from 8 to 18 feet below ground surface. The groundwater flow direction is predominantly to the southwest toward the East River.

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: Post-Remediation The remediation at the site is complete. Prior to remediation, the primary contaminants of concern were volatile organic compounds (VOCs), semivolatile organic compounds (SVOCs), in particular polycyclic aromatic hydrocarbons (PAHs), and inorganics (metals) in soil. The primary VOCs that were detected at concentrations exceeding soil cleanup objectives (SCOs) were ethylbenzene and xylenes. In addition, significant concentrations of non-targeted, tentatively identified compounds (TICs) were detected in many of the soil samples, resulting in the SCO for total VOCs being exceeded. VOCs (including TICs) were predominantly detected in the area of the former paint and varnish manufacturing facility in the northwestern portion of the site. The primary SVOCs that were detected at concentrations exceeding SCOs were phenol, 2-methylphenol, fluoranthene, pyrene, and the PAHs benzo(a) anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno (1,2,3-cd)pyrene and dibenzo(a,h)anthracene. PAHs are products of incomplete combustion and are common in soils in urban areas. Inorganics that were detected at concentrations exceeding SCOs were barium, beryllium, copper, iron, lead, mercury, nickel and zinc.

Site Health Assessment
The area is served with public water, therefore it is unlikely that groundwater is used as drinking water. The remedy as outlined in the Record of Decision is being implemented and will prevent future exposures by covering residual wastes. Contaminants of Concern
Type of Waste Quantity of Waste
BARIUM UNKNOWN
BENZO(A)PYRENE UNKNOWN
BENZO(B)FLUORANTHENE UNKNOWN
BENZO[K]FLUORANTHENE UNKNOWN
BERYLLIUM UNKNOWN
COPPER UNKNOWN
DIBENZ[A,H]ANTHRACENE UNKNOWN
ETHYLBENZENE UNKNOWN
IRON UNKNOWN
LEAD UNKNOWN
MERCURY UNKNOWN
NICKEL UNKNOWN
XYLENE (MIXED) UNKNOWN
ZINC UNKNOWN
  1. DEC Environmental Site Remediation Database.  Site Name: "Baretto Point".

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