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machine-extracted · confidence unavailable · Check page ↗Document / 35 pages
Contaminant of Potential Concern exceedance table, Unit 2A
Machine-extracted title · confidence 90%Table comparing contaminant levels before and after cleaning for Unit 2A, including dioxin, PAHs, asbestos, and lead.
NYC-WTC_000186138–000186172Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
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Internal Review Draft
CONTAMINANT OF POTENTIAL CONCERN (COPC) EXCEEDANCE BY EVENT TABLE [ADD] - UNIT 5C, TEST 3A, 3B
Cleanup Criteria Pre-Cleaning Post-First Cleaning |Post-Second Cleaning |Post-Third Cleaning | COPC [Air_______ Wipe MV Air Wipe MV Air Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 303.5 Asbestos 0.0009 f/cc n/a QL OL 0.0016 OL / 0.0015 OL OL.”"\? QL-
Lead 1 ug/m3 25 ug/ft2 336 SB 43.6 293 133
MMVF 0.01 f/cc 13.399 16.598 19.25 12.621 Silica 4 ug/m3
o OL = Overloading of particulates H MV = Microvac SB = Sample broken
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NYC-WTC_000186159
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NYC-WTC_000186159Source: NYC Law Department, mirrored locally
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