225-237 St. Nicholas Avenue, NY, NY

Harlem

brownfield

Nicholas Parking Garage Group, LLC and Ladera, LLC
Site Description[1] 
The Former Shell Service Station and Parking garage site is located in an urban area. The site is located on St. Nicholas Ave., between 121st Street (south) and 122nd Street (north)in the Borough of Manhattan. The site currently contains an operating multi-story parking garage and a former gasoline service station with automobile repair facility. Prior uses include coal and scrap metal storage. The site is comprised of two adjacent tax parcels totaling approximately 0.468 acres. Current use is commercial. Surrounding properties are primarily residential. The intented use is unrestricted, residential and commercial. Contaminants which are known in soil and ground water are metals, SVOCs and VOCs. Previous investigations are limited. The applicant proposes to do a more thorough Remedial Investigation. A previous application was submitted for the site in October 2009. That application was denied on 12/7/09. On 9/30/10, a new BCP Application was received. On 2/9/11, the Department signed the Brownfield Cleanup Program Acceptance Letter. Depth to Groundwater is approximately 18.02 to 18.65 feet below ground surface. The Groundwater flows in a east/southeasterly direction with a gradient of 0.0002 feet per foot (ft/ft). 3/17/11- The Department signed and executed the Brownfield Cleanup Agreement. 06/06/2011- The Interim Remedial Measure, i.e., the removal of 15 tanks, commenced.

Site Environmental Assessment
Based upon investigations conducted to date contaminants of concern include metals, SVOCs and VOCs in both soil and groundwater. The results from groundwater samples show detections of 13 VOC parameters including four parameters above ambient groundwater standards in one or more locations as follows: 1,2,4,5-Tetramethylbenzene (3 locations), 1,2,4-Trimethylbenzene (1 location), Isopropylbenzene (2 locations) and n-Propylbenzene (3 locations). All four of the parameters detected above groundwater standards were also reported in the soil samples. In addition, the compound with the highest concentration in soil (1,2,4,5-Tetramethylbenzene) was also reported at the highest concentration in groundwater. Four SVOC parameters were reported above ambient groundwater standards or guidance values at the location near the former fuel oil tank on Lot 35. The extent and magnitude of contamination in soil and groundwater at this site is not fully delineated.

Site Health Assessment
A health assessment summary will be provided when sufficient information becomes available to complete the assessment.

Contaminants of Concern
Type of Waste Quantity of Waste
BENZO(B)FLUORANTHENE UNKNOWN
BIS(2-ETHYLHEXYL)PHTHALATE UNKNOWN
Chrysene UNKNOWN
indeno(1,2,3-cd)pyrene UNKNOWN
IRON UNKNOWN
LEAD UNKNOWN
MANGANESE UNKNOWN
SODIUM UNKNOWN
  1. DEC Environmental Site Remediation Database.  Site Name: "Former Shell Service Station and Parking Garage".

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