OSHA Crane Inspection Report and Analysis Oct 2001

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Fax: 19 20W 22:05 p.oj

OSHA BAMPUNO RtSULTS SUMMARY AS OF 10/iS Aabostos; ftnii2ii£ttasasfts!s^ they walked wifinn certain predeteimioed zones. Results revealed aabwtos coacestiatiofis raagiiia from NO to .037 free., well below OSHA’s pcnaisefole exposure « Hmit (PEL) of. Ifr^ After 9/22, saispliM focused oa the rutote pile (the keystone area of tire map} where 32 of 210 sanmles exceeded OSHA’s Until via PCM aaalyah. However, upon fiwhw analysis usmg discrimioBting counting methods and/or TEM analysis, the number of asbestos fibera found dropped dramatically to below detectable levels or well below .1 free, Sampling at Pier 25 where cnida carrying the debris arc betag offloaded by crane to barge revealed no detestable asbestos.

Carbon Monoride: Thirty-oae personal soix^les for workers on die rubble pile showed results ranging from 1 ppm to 34 ppm well below the OSHA SO ppm penni&sible exposure Emit Noise: As of 10/14, OSHA has bees conducting noise ooaiioriag in ds rubble pile (the keystone area of the map). Five personal samples have been cosducmd oa employees performiog (cr working near) various operations such as Jack haamerisg, En^oyee’a exposure to die noise range from 84 iSA to 89 dBA. OSiA’s pennissibie ndse exposure Ax oonstsuedon is 90 dBA SiHca: As of October 18% ths overwhelmii^ majority of the 168 silica sample show no detectable levels of airborne silica. The hi ghest sample result was approximately twice the OSKA limit, whereas die next highest level was less than half of mis liroit. Both of dime levels were found on persomsti working in the rubble pile; aa area where OSHA oondBscs to encourage die use of respiratory protection.

VOCs AS of October 18% OSHA has taken 15S samples for volatile organic compounds (VOCs) such as acataldrityde, aorylonitrile. acrolem, bcazene, S-buncoae, chlorodiphenyl (PCS), dioxin, ethyl benxeQS, foosiddehyde, hexone, isocyanates, perchloroe&ylcQfi, styrens, toluene, trichjoroethyleae, vinyl chloride and xylene. Screening saamles initially showed elevated levels of same organic chemicals resullinj from the tires buruLig ip me nibble pile. Subsequent peracauJ sad area samples show worker exposure levels to be below OSHA limjta. However, one personal sample resul' for benzene was found to be at die 8hr OSHA Allowable Limit ooncemration of Ippm Titis was found un a badfooe operatw moving debris. Metals: As of 10/16, OSKA has taken 235 air samples to monitor worker exposures to dusts, fumes, oxides, sad other compounds of metals such as antimony, beryllium, chromiu^ cobalt, copper, iron, lead, manganese, ntolybdeoum, nickel, vaaadtum, zinc, cadmium, magnesium, arsemc, and mercury. Result from toe san^les ere generally well Wow die applicable OSHA Houts. However, torch cutting and burning structural steel at the pile have resulted a instances of over exposures as follows: copper iron oxide (6); lead (1); cadmium (3). Accordingly. OSHA is recommet^g that workers engaged i ±esc operations wear appropriate respiratory protection.

Other Analysis: OSHA is sampling for dioxin, isocyanates and oxides of nitfogon. Kesulu art pending

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