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Legal hold notice for WTC documents, undated

Machine-extracted title · confidence 98%

Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.

NYC-WTC_000148192–000148619

Folder label: “AIR ASBESTOS MONITORING REPORTS

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Scanned page image, NYC-WTC_000148489
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Gerry 718 545 .1544 P.01 NYC-WTC_000148489

Environmental Monitoring Update Data reported to NYC DOH 9/20/01 as of 4 pm Asbestos NYC 9/11 Public Portal Document

Ambient air monitoring

N N above 0.01 N above OSHA Maximum Comment Date Location (fibers/cc) Agency PEL@ Sep 21 '01 16:45 samples fibers/cc* 0.047 Highest levels at Albany ar 11 2 0 USEPA (rounds 9/18/01 Hot zone, close in Greenwich and Liberty and 8 and 9) South End, TEM was <0.00 7 0 0 0.042 Max was at Wall and Broad 9/18/01 Hot zone, perimeter TEM was <0.008 4 0 0 0.018 9/18/01 Nearby neighborhood to Hot zone 0.029 Both samples above 0.01 at 18 2 0 9/19/01 Fresh kills screening OPS (site) y equivalent to * 0.01 fibers per cc by TEM method. Approximatel od. time weighted average. Results are by PCM meth @ US-OSHA permissible exposure limit for 8 hour

Personal air monitoring N N above Maximum Comment Location Activity Agency samples OSHA (fibers per PEL* cc) 2 0 <0.007 Hot Zone Cable splicing Con Ed in manhole D. O. H. GOV'T AFFAIRS Fax:212-349-0040

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NYC-WTC_000148489Source: NYC Law Department, mirrored locally

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