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Law Department notice on WTC document preservation, Oct 2001

Machine-extracted title · confidence 95%

Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.

NYC-WTC_000145027–000145344

Folder label: “NO INFO

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Scanned page image, NYC-WTC_000145264
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Unit 4A Results Post 2nd cleaning - Test 2A Sample ID Matrix Detected Result Comment 9094-A-4A-023 Air f/cc Not analyzed due to overloading of particulates. 9094-A^A-024 Air f/cc Not analyzed due to overloading of particulates. 9094-A^A-025 Air f/cc Not analyzed due to overloading of particulates. 9094-A-4A-023 Air ND < 0.0009 S>0.5u/cc

9094-A-4A-024 Air ND < 0.0008 S>0.5u/cc

9094-A-4A-025 Air ND < 0.0009 S>0.5u/cc

9094-A-4A-023 Air ND < 0.0009 S>5u/cc

9094-A-4A-024 Air ND < 0.0008 S>5u/cc

9094-A-4A-025 Air ND < 0.0009 S>5u/cc

Dioxin TEQ EMPC (ND=1/2)

Before cleaning Sample ID Matrix Detected Result Comment 9094-W-4A-002 Wipe 0.836 ng/m2

9094-W-4A-003 Wipe 0.583 ng/nn2

9094-W-4A-004 Wipe 0.553 ng/m2

Post 1st cleaning - Test 2A Sample ID Matrix Detected Result Comment 9094-W-4A-016 Wipe 0.701 ng/m2

9094-W-4A-017 Wipe 0.659 ng/m2

9094-W-4A-018 Wipe 0.701 ng/m2

9094-W-4A-019 Wipe 0.752 ng/m2

Gypsum Post 1st cleaning - Test 2A Sample ID Matrix Detected Result Comment 9094-A-4A-013 Air ND < 0.008 mg/m3

9094-A-4A-014 Air ND < 0.008 mg/m3

Post 2nd cleaning - Test 2A Sample ID Matrix Detected Result Comment 9094-A-4A-026 Air ND < 0.008 mg/m3

9094-A-4A-027 Air ND < 0.008 mg/m3

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NYC-WTC_000145264

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NYC-WTC_000145264Source: NYC Law Department, mirrored locally

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