Draft special investigative audit report on environmental data from the World Trade Center site prepared by IT Corporation.
NYC-WTC_000130438–000130515Folder label: “E-Mail 1/2/02”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Chlorinated Dioxins and Furans (CDD/CDF)
Several different CDD/CDF data sets were found in the NYC Response database, including individual congeners, PCDD/PCDF, Dioxins, and TEQ (toxic equivalents). CDD/CDF isomer or congener-specific samples in the NYC Response database include seven (7) bulk dust samples and six (6) water samples. The bulk dust samples are all from the Battery PK & 2"d Pl location taken on September 16``'. The water samples appear to be from various treatment locations of the Newtown Creek STP taken on September 15'. In the water samples, 2,3,7,8-TCDD was not detected with an MDL of 0.01 ng/L (ppt). As of November 16"', no additional CDD/CDF sample results have been found in the NYC Response database.
The results from four (4) CDD/CDF bulk dust samples taken on September 16°i at the Battery Pk & 2"d Pl sampling site are summarized in Table 10 and Figure 7. At the time of this Draft Report, no additional data has been posted in the NYC Response database. From the bulk dust results, the pattern in CDD/CDF congeners and congener class concentrations in the different samples are highly correlated suggesting a single source. The correlation coefficient calculated between samples AO6353 and AO6351 using the data in Table 3 is 0.9726. In each of the four samples, CDD concentrations generally increase with the level of chlorination. In three of the four samples, OCDD is approximately ten times (1 Ox) the concentration of total TCDD. The reverse is true of CDF concentrations where the concentration decreases with the level of chlorination. In all four samples, the concentration of OCDF is approximately one-tenth (1/10) the concentration of total TCDF. The highest reported concentration of 2378-TCDD, the most toxic CDD/CDF, was 5.18 pg/g (ppt).
Comparing the Battery Pk & 2"d Pl bulk dust CDD/CDF profile to nine (9) references in Chemosphere, 1990, Vol 20, which includes CDD/CDF profiles for urban and background soil, paper pulp, incinerator fly ash, and others, the best correlation is with samples from a paper and oil incinerator described by Brown, et. al. Q. 1785 - 1791), with a correlation coefficient of 0.9464.
PCDD/PCDF is also reported for sediment, bulk dust, air, and water samples. All of the sixteen (16) sediment samples were taken at the Foot of Vesey BY CSO M-6 location on September 15'. The highest concentration of PCDD/PCDF reported for the sediment samples was 39.9 pg/g (ppt).
Six (6) PCDD/PCDF bulk dust samples from the WTC location (no sample date listed) were also reported with a high value of 84.4 pg/g (ppt).
From five (5) water samples taken on September 16t , with no location listed, the highest PCDD/PCDF value reported was 0.016 ng/L (ppb).
Four (4) PCDD/PCDF air samples were also reported for samples taken on September 16"' from four (4) different locations on Lower Manhattan. The highest reported PCDD/PCDF value in the air samples was 0.066 ng/m3 from the Location B - Church St & Dey St site. The PCDD/PCDF values are the same as the TEQ values also reported for the same four (4) sites from September 16'''.
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NYC-WTC_000131053
Fax cover sheet dated February 20, 2002, transmitting chain of custody records related to Pier 40 and West Street.
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Documentation tracking the chain of custody for environmental samples collected from Building #400 at 375 South End Avenue in October 2001.
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Document tracking environmental samples collected from Building #500 at 385 South End Avenue on October 22, 2001.
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Document tracking environmental samples collected from Building #100 at 345 South End Avenue on October 22, 2001.
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Letter and chain of custody document tracking HVAC and environmental inspection samples from 333 Rector Place.
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Document tracking environmental samples collected from 365 South End Avenue on October 17, 2001.
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Record documenting the transfer and custody of air samples from Building #100 at 345 South End Avenue collected on October 22, 2001.
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Chain of custody form documenting bulk sampling and air monitoring at 375 South End Avenue on November 17, 2001.
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Form documenting an environmental referral for the World Trade Center site with follow-up status.
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Record documenting the transfer and custody of air samples from Building #500 at 385 South End Avenue collected on October 22, 2001.
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NYC-WTC_000130434
Department of Environmental Protection document from January-February 2002 regarding World Trade Center site activities.
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NYC-WTC_000130516
Draft special investigative audit report on environmental data from the World Trade Center site prepared by IT Corporation.
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NYC-WTC_000130522
Summary of asbestos air sampling results from December 2001 showing all samples below TEM AHERA standards for NYC and Fresh Kills.
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