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WTC OSHA Asbestos Sampling Data for B2 Permisissible Exposure Limit (PEL): 0.1 fiber/cubic centimeter as an 8-hr time weighted average. Excursion Limit: 1 fiber/cubic centimeter over a 30-minute period. DATE Location # of Samples Sample Type Fibers /cc 14-Sep Broadway & Rector St. 1 Personal 0.015 14-Sep Broadway to WTC 1 Personal 0.005 14-Sep City Hall to WTC 1 Personal 0.006 15-Sep Fulton & Broadway 3 Personal <0.024-0.069 15-Sep Fulton & Broadway to Pine & Broadway 1 Personal 0.0048 DATE Location # Samples Sample Type Fibers/cc TEM fibers/cc 9/17 Park & Broadway 3 Personal 0.009-0.015 none 9/17 WTC7-5 to Vesey 1 Personal 0.004 none 9/17 West Broadway & Vesey to Church 1 Personal 0.010 none 9/17 Church & Vesey to Cedar to West & Liberty 1 Personal 0.015 none DATE Location Sample Type Fibers /cc TEM fibers/cc 9/18 Church & Vesey Area 0.023 none 9/18 SW Corner 90 Church Area 0.015 none 9/18 Church & Vesey Area 0.015 none 9/18 90 Church Area 0.017 none 9/18 West Broadway & Murray to West Personal 0.04 none 9/18 West Broadway & Barclay to Church to William Personal 0.041 none 9/19 Church & Park to Greenwich & Murray & Barclay Personal 0.0038 <0.005 9/19 Church & Park to Greenwich & Park Square to Barclay to Vesey Personal 0.029 <0.006 9/19 SE corner 90 Church st Area 0.02 <0.008 9/19 Church & Vesey to West Broadway & Barclay to Albany & Greenwich Personal 0.018 <0.004 9/19 Murray to Barclay, PS89 to West & Chambers to Liberty Personal 0.009 <0.003 9/20 NW corner of Church & Vesey (subway entrance) Area 0.009   9/20 WTC mall entrance, Flagpole between WTC4 & 5 Area 0.027   9/21 SW corner of Barclay & Church at Subway entrance Area 0.006 <0.004 9/21 SE corner Barclay & West Broadway at traffic light Area <0.004   9/21 NW corner Church & Vesey at Subway entrance Area <0.005   9/21 Dey & Church Area 0.008 <0.004 9/21 West Liberty & Church Area 0.009 <0.004 9/21 Church & Dey to WTC Bldg # 5 Bulk ND   9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal 0.014 <0.006 9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal 0.015 0.015 9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal 0.01 <0.007 9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal <0.019   9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal 0.018 <0.006 9/21 North perimeter of pile to West to Greenwich & Church on Vesey Personal <0.010   9/23 NW Bldg 6 Personal 0.0048 <0.006 DATE [Sample#] Location/task Sample Type Duration (mins) Fibers/cc TEM (f/cc) 9/24 SE corner at rubble pile NW Bldg 6 (Hot Zone) Personal 210 Overloaded   9/24 Church & Dey (Warm Zone) Area 245 ND   9/26 Plaza, Iron worker on the rubble pile (Hot Zone) Personal 190 0.068   9/26 Plaza, Iron worker on the rubble pile (Hot Zone) Personal 195 0.14 0.008 9/26 Plaza (Hot Zone) Personal 160 0.05   9/26 Plaza (Hot Zone) Personal 155 0.015

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