NYC-WTC_000097692
Memo from Ambient Group dated November 21, 2001 providing a summary of environmental monitoring activities.
2 shared non-person entities · similarity 0.942
machine-extracted · confidence unavailable · Check page ↗Document / 22 pages
DDC fax transmittal re: WTC scaffolding at Liberty Street, July
Machine-extracted title · confidence 90%Transmittal from DDC regarding a letter sent to Deutsche Bank about scaffolding on Liberty Street.
NYC-WTC_000154848–000154869Folder label: “DEUTSCHE BANK”
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OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
AMBIENT GROUP Diozlns/Farans, HRGC/HRMS (8290) CUent Sample ID: 211909-14D-P
Lot-Sample #~i G2D230154.014 Work Order#-.: BX98D1AC Matrix—: SOLID DattSano^etUu 04^2/02 Date Received-: 04/23/02 Instrument: 7D5 PrepDate.~>.t 04/25/02 _ Analysis Date-: 04/29/02 Units—.: pg/g Prep Batch #~! 2115447 -Dilution Factor: 1 % Moisture:
DETECTION TO TEQ UMrr FACTOR CONCENTRATION PARAMETER RESULT
23,7,8.TCDD 190 1X00 190.000000 l,23,7X-PeCDt> 700 0X00 350.000000 1.23,4,7,8-HxCDD 890 0.100 89.000000 1,23,6,7,8-HxCDD 1300 0.100 130.000000 1,23,7,8,9-HxCDD 1200 0.100 1204100000 1^3,4,6,7,8-HpCDD 10000 0.010 100.000000 OCDD 36000 0.001 364)00000 2A7X-TCDF 910 CON 0.100 91X00000 lA3,7,8-PeCDF 1300 0.050 65.000000 23,4,7,8-PeCDF 2200 0.500 1,100X00000 ia3,4,7,8-HxCDF 2800 0.100 280.000000 133,6,7,8-HxCDF 2400 0.100 240X00000 23.4,6,7,8-HxCDF 2700 0.100 270X00000 133,7X,9-HxCDF 170 0.100 17X00000 133/1,6,7,8-HpCDF 13000 0.010 130.000000 133,4,7,8,9-HpCDF 1500 0.010 15.000000 OCDF 7600 0.001 7.600000 Total TEQ ConcentradoB 3^0.600000 PERCENT RK»VERY INTERNAL STANDARDS RECOVERY LIMITS
1302,3,7,8-TCDD 79 40-135 1301,2,3,7,8-PeCDD 74 40-135 1301,2,3,6,7,8-HxCDD 78 40-135 1301.2,3,4,6,7,8-HpCDD 73 40-135 13C-OCDD 80 40-135 13023,7.8-TCDF 71 40-135 13013,3,7,8-PeCDF 70 40-135 13013.3,4,7,8-HxCDF 80 40-135 1301,2,3,4,6,7,8-HpCDF 71 40-135
Notes: TEF values are cited in UA EavironroenuU Prweedon Agency, (1989) Inierim procedures fix estimadns 4sks associated withojtposures tt mixtures of chlorinated dibenzo-p-dioxlns and -dlbenzoSnans (CDDs and CDFs) and 1989 up^. U.S. Enyironmentfil Protection Agency, Risk Assessamn forum, Washington, DC; EPA/625/3-89/016.
CON Confirmation analysis.
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I NYC-WTC_000154869
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NYC-WTC_000154869Source: NYC Law Department, mirrored locally
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Fax cover sheet from Ambient Group dated January 22, 2002 regarding indoor environmental quality surveys.
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Fax cover sheet from Ambient Group dated February 12, 2002 regarding indoor environmental quality surveys.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000097632
Fax cover sheet from Ambient Group dated December 13, 2001 regarding indoor environmental quality surveys.
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Letter from Ambient Group Inc. dated November 9, 2001, regarding indoor environmental quality surveys at North End Avenue and Vesey Street.
2 shared non-person entities · similarity 0.936
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000148192
Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000097713
Letter from Ambient Group dated November 16, 2001 summarizing an indoor environmental quality survey.
3 shared non-person entities · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000097669
Header page of a laboratory report detailing indoor air and surface sampling for asbestos and lead.
2 shared non-person entities · similarity 0.935
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