NYC-WTC_000203050

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NYC Emergency Response Asbestos Air Sampling Results at Fixed Locations '2 o o Sampling Date and Time: 10/13/01 0001 to 1200 ■D c CT o' ro PCM by NIOSH 7400 TEM ( AHERA) "D o Sampling Sampling Sample f/mm’ f/cc Structures (#)* S/mm’ S-f/cc* o Ca5 3. o Date Sample No. Location Volume Matrix O.Sp-5p >5u 03 Oi

10/13/2001 05495 A 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 O o 10/13/2001 05496 B 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 o c 10/13/2001 05497 C1 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 3 10/13/2001 05500 D 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 CD 10/13/2001 05485 E 1440 Air <7.0 <0.002 6 0 <15.75 <0.0042 10/13/2001 05486 F 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05498 H 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05499 I 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05494 J 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05481 K 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05491 L 1440 Air <7.0 <0.002 1" 0 15.75 0.0042 10/13/2001 05492 M1 1440 Air 10.19 0.003 0 0 <15.75 <0.0042 10/13/2001 05493 N 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05483 P 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05484 P DUP 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05487 Q 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05482 S 1440 Air <7.0 <0.002 0 0 <15 75 <0.0042 10/13/2001 05489 T 1440 Air <7.0 <0.002 0 0 <15 75 <0.0042 10/13/2001 05488 u 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 10/13/2001 05490 V 1440 Air <7.0 <0.002 0 0 <15.75 <0.0042 coc#0403S&40 “Chrysolite; No other types of asbestos fibers were found

Sampling Locations: NS: Not sampled A: NE corner of West Broadway & Barclay S: Rector & South End ‘Structure (S) roughly equivalent to fiber (f) B; SE corner of Church & Dey St. T: Pier 6 Heliport NR: Not requested C: Trinity (a.k.a. Church) & Liberty U: Pier 6 Exit 2 NA: not analyzed due to overloading of particulates Cl: SW corner of Broadway & Liberty St. V: Pier 6 Bus Sign D: East end of Albany St. at Greenwich St. E: Western end of Liberty St. at South End Ave F: Northern median strip of Vesey & West St G: Church and Duane St. H: South side of Chase Manhattan Plaza at Pine St. 1: SE corner of Wall St. & Broadway J: NE corner of Warren & West St. K: West St. & Albany in median strip L: On walkway toward North Park rec area (north side of StuyvesanI High), access to TAGA bus area o M: Western end of Harrison St. at West St. (on tree next to bulkhead) Ml : West St. - 50 yards south of Harrison St. at bulkhead N: South side of Pier 25 (next to volleyball court) ERT: 10/15/01 09;50AM to P: NE corner of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post R; TAGA Bus Location o o NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 I Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) o o Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) to Ui FL-10-13-01 cn CD Cn