NYC-WTC_000196317

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o ■0 o c o CT CD o' O> "0 Ca5 NYC Response o Asbestos Air Sampling Results at Fixed Locations Data Validation Date: 01/22/02 Sampling Date and Time: 01/19/02 1200 to 2359 03 FpCM^IOSH 7400 TEM AHERA) O Sampling Sampling Sample Structures (#) o Date Sample No. Location Volume* Matrix r/mm’ f/cc 0.5p - Sp _5M S/mm^ S-f/cc** o c 01/19/02 RST-03449 L 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 720 <7.0 <0.004 0 <8.89 <0.0048 3 01/19/02 RST-03450 Ml Air 0 o 01/19/02 RST-03451 N 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 3 01/19/02 RST-03452 J 720 Ar <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-U3453 Q 464 Alp <7.0 ''U.WWW S.OO 0.0066 0 ’ 01/19/02 RST-03454 F 720 Air 7.64 0.004 0 <8.89 <0.0048 01/19/02 RST-03455 A 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03456 C 702 Air <7.0 <0.004 0 0 <8.89 <0.0049 01/19/02 RST-03457 C-Duplicate 720 Air <7.0 <0.004 0 0 <8,89 <0.0048 01/19/02 R$T-03458 B 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03459 H 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 ’01/19/02 RST-03460 I 720 Air <7.0 <0.004 0 0 <8.09 <0.0048 01/19/02 RST-03461 _ _D____ 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST.03462 K 720 Air 10.19 0.005 0 0 <8.89 <0.0048 01/19/02 RST-03463 S 720 Air 7.64 0.004 0 0 <8.89 <0.0048 01/19/02 RST-03464 P 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03465 E 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03466 U 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-G3467 V 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03468 V-Duplicate 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/19/02 RST-03469 W 720 Air 12.10 0.006 0 0 <6.89 <0.0048 01/20/02 FB012002 Field Blank 0 Air <7.0 n/a NA^ ~NA^ 01/20/02 TB012002 Trip Blank 0 Air <7.0 n/a NA'"^ NA^"' I NA<^>

Sampling Locations: Key: A: NE corner of West Broadway & Barclay M: Western end of Harrison St. al West St. * Sample volume (liters) is below recommended B; SE corner of Church & Dey St. {on tree next to bulkhead) limit for the TEM method: C: Trinity (a.k.a. Church) & Liberty Ml : West St. - 50 yards south of Harrison St. at bulkhead volurne is based on pump reading Cl: SW corner of Broadway & Liberty St. N: South side of Pier 25 (next to volleyball ct) ** Structure (S) is roughly equivalent to fiber (f) D: East end of Albany St. at Greenwich St. P: NE corner of South End Ave. & Albany *** Chrysotile E: Western end of Liberty St. at South End Ave Q; Barclay & West St. (center island) in Q F: Northern median strip of Vesey & West St proximity to USCG command post NA'^’ - Not analyzed due to overloading of H G: Church and Duane St. R: TAGA Bus Location particulates H; South side of Chase Manhattan Plaza at Pine St S: Rector & South End NA'^’- Not analyzed for TEM NJ I: SE comer of Wall St. & Broadway T: Pier 6 Heliport n/a - Not applicable J; NE comer of Warren & West St. U: Pier 6 Exit 2 NR - Not requested s Q K: West St. & Albany in median strip V: Pier 6 Bus Sign NS - Sample not submitted L: On walkway toward North Park rec area (north side W: Wash Tent Common Area of Suyvesant High), access to TAGA bus area I NIOSH 7400: Fiber Analysis of Air Samples via NiOSH 7400. Revision 3, Issue 2, 8/15/94 O O Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA40CFR Part 763 (AHERA) Lo Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm^ volume 1200 L, for 25 mm filter (TEM) Lo

CO FL-01-19-02-pm