NYC-WTC_000232867

NYC 9/11 Public Portal Document

NYC Response Asbestos Air SampSing ResuSts at Fixed Locations Data VaSidation Date; 01/25/2002 Sampiing Date and Time: 01/24/02 0001 to 1200 PCM bv NiOSH 7400 TEM A HERA) Sampiing Sampiing Sample 5trijetiire.s (#) Date Sampie No. Location Voiume* Matrix f/mm^ f/cc O.sp- 5p 5p S/mm’ S~f/cc** 01/24/02 RST-03635 L 675 Air <7.0 <0.004 0 0 <8.00 <0.0046 01/24/02 RST-03636 M-1 689 Air <7.0 <0.004 0 0 <8.00 <0.0045 01/24/02 RST-03637 N 660 Air <7.0 <0.004 0 0 <8.00 <0.0047 01/24/02 RST-03638 J 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03639 Q 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03640 F 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03641 A 656 Air 12.74 0.007 0 0 <8.00 <0.0047 01/24/02 RST-03642 C 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03643 B 720 Air 7.64 0 004 0 0 <8.89 <0.0048 01/24/02 RST-03644 B-Duplicate 720 Air <7.0 <0.004 0 8.89 0.0048 01/24/02 RST-03645 H 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 I NS Air NS NS NS NS NS NS 01/24/02 RST-03646 D 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03647 D-Duplicate 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03648 K 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03649 S 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03650 P 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03651 E 690 Air <7.0 <0.004 0 0 <8.00 <0.0045 01/24/02 RST-03652 T 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03653 U 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03654 V 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 RST-03655 W 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 01/24/02 FB012402 Field Blank 0 Air <7.0 n/a NA<=^> NA<^> NA(=^> NA® 01/24/02 TBO12402 Trip Blank 0 Air <7.0 n/a NA<=^> NA NA<=^> NA®

Sampling Locations: Key: A: NE corner of West Broadway & Barclay M: Western end of Harrison St. at 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; volume is based on C: Trinity (a.k.a. Church) & Liberty Ml : West St. - 50 yards south of Harrison St. at bulkhead 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 **** Extremely low sample volume collected F: Northern median strip of Vesey & West St proximity to USCG command post G: Church and Duane St. R: TAGA Bus Location NA<” - Not analyzed due to overloading of H: South side of Chase Manhattan Plaza at Pine St. S: Rector & South End particulates I: SE corner of Wall St. & Broadway T: Pier 6 Heliport NA® - Not analyzed for TEM J: NE corner of Warren & West St. U: Pier 6 Exit 2 n/a - Not applicable K: West St. & Albany in median strip V: Pier 6 Bus Sign NR - Not requested O L: On walkway toward North Park rec area (north side W: Wash Tent Common Area NS - Sample not submitted H of Suyvesant High), access to TAGA bus area l"^ to NiOSH 7400: Fiber Anaiysis of Air Samples via NiOSH 7400, Revision 3, issue 2, 8/1S/94 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) S o Standard criteria; EPA 40CFR Part 763 (AHERA): 0,01 tiber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) o o I o DOH00175943.XLS

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NYC-WTC_000232867