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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_000145252
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NYC 9/11 Public Portal Document

Unit 3C Results 9094-A-3C-035 Air ND < 0.0005 S>0.5u/cc

9094-A-3C-036 Air ND < 0,0005 S>0.5u/cc

9094-A-3C-037 Air ND < 0.0005 S>0.5u/cc

9094-A-3C-032 Air ND < 0.0005 S>5u/cc 9094-A-3C-033 Air ND < 0.0005 S>5u/cc

9094-A-3C-034 Air ND < 0.0005 S>5u/cc

9094-A-3C-035 Air ND < 0.0005 S>5u/cc 9094-A-3C-036 Air ND < 0.0005 S>5u/cc 9094-A-3C-037 Air ND < 0.0005 S>5u/cc

Dioxin TEQ EMPC {ND=1/2) Before cleaning Sample ID Matrix Detected Result Comment 9094-W-3C-002 Wipe 0.558 ng/m2

9094-W-3C-003 Wipe 6.2 ng/m2 9094-W-3C-004 Wipe 1.32 ng/m2

Post 1st cleaning - Test 1A Sample ID Matrix Detected Result Comment 9094-W-3C-017 Wipe 0.618 ng/m2 9094-W-3C-018 Wipe 0.56 ngZm2 9094-W-3C-019 Wipe 0.557 ng/m2 9094-W-3C-020 Wipe 0.525 ng/m2

Gypsum Post 1st cleaning - Test 1A Sample ID Matrix Detected Result Comment 9094-A-3C-014 Air ND < 0.016 mg/m3

9094-A-3C-015 Air ND < 0.017 mg/m3

Lead Before cleaning Sample ID Matrix Detected Result Comment

9094-M-3C-005 Microvac 68.4 ug/ft2

9094-M-3C-006 Microvac 135 ug/ft2

9094-M-3C-007 Microvac 43.3 ug/fl2 9094-M-3C-008 Microvac 39.4 ug/fl2 Page 3 of6

NYC-WTC_000145252

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NYC-WTC_000145252Source: NYC Law Department, mirrored locally

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