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OSHA Crane Inspection Report and Analysis Oct 2001

Machine-extracted title · confidence 94%

Joint OSHA and Bechtel crane inspection report analyzing safety conditions at the World Trade Center site.

NYC-WTC_000149936–000149977

Folder label: “OSHA_COSH

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Z z o o g Liberty Mutual / ATC Measurment Results Summary 3/4/02- 3/8/02 co

o TJ o c o Start End Shift Highest % of % Less CT Report Report # Samples #of Highest % Adj. Shift Adj. # Less than than Half o' CD Job Description #NQ's %NQ's Half OEL OEL U CD Period Period Analyte Class Collected Analysis OEL OEL OEL OEL Analyte o 3. o 03 3/4/2002 3/8/2002 brock operator @ WTC6LvlB5 56 80.00% 58 82.86% O 7:00:00 AM 5:00:00 PM Silica 35 70 0.05 7200.00% 0.024 15000.00% Quartz o o c Heavy Dump Truck Diesel Exhaust in Depression 3 3/4/2002 3/8/2002 CD 7:00:00 AW 5:00:00 PM Diesel Fume 8 8 0.02 98.00% 0.02 98.00% Particulates Grace 1 12.50% 62.50% O

3/4/2002 3/8/2002 Operator In 7:00:00 AM 5:00:00 PM Asbestos 9 9 0.1 16.00% 0.05 32.00% Asbestos Depression 4WrC 3 33.33% 9 100.00%

3/4/2002 3/8/2002 Torch Cutter in 7:00:00 AM 5:00:00 PM Metals 13 272 0.2 8.01% 0.134 11.96% Copper Depression 5WTC 180 66.18% 272 100.00% torch cutter on 3/4/2002 3/8/2002 surface WTC #5 on 5:00:00 PM Adds 30 5 0.58% 5 0.58% Hydrochloric Add scafold 29 96.67% 30 100.00% 3/4/^002 3/8/2002 7:00:00 AM 5:00:00 PM Ozone 6 6 0.00% 0.00% 6 100.00% 6 100.00% 3/4/2002 3/8/2 odS 5:00:00 PM Sulfides 13 13 0.00% 0.00% 13 100.00% 13 100.00% 3/4/2002 3/8/2002 7:00:00 AM 5:00:00 PM Mercury 10 10 0.00% 0.00% 10 100.00% 10 100.00% 90 90 ooDcatin 3/2/2002 3/9/2002 Noise 29 29dBA 339% dBA 339% noise depression 0 0 12 41% 25 17 carbon WTC 6 Floor 1 3/2/2002 3/9/2002 Carbon Monoxide 39 39jopm 36% ppm 54% monoxide cut rebar 17 44% 38 97%

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NYC-WTC_000149970Source: NYC Law Department, mirrored locally

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