NYC-WTC_000187525

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results at Fixed Locations Data Validation Date: 12/21/01 Sampling Date and Time: 12/18/01 1200 to 2359 PCM by NIOSH 7400 TEM AHERA) Sampling Sampling Sample Structures (#) Date Sample No. Location Volume* Matrix f/mm" f/cc 0.5m - 5m S/mm" S~f/cc** 12/18/01 RST-02102 L 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02103 N 1193.4 Air <7.0 <0.002 0 0 <13.33 <0.0043 12/18/01 RST-02104 M-1 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02105 J 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02106 Q 1224* Air <7.0 <0.002 0 0 <13.33 <0.0042 12/18/01 RST-02107 F 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02108 A 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02109 B 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02110 C 720 Air 7.64 0.004 0 0 <8.89 <0.0048 12/18/01 RST-02111 H 720 Air <7.0 <0.004 0 8.89 0.0048 12/18/01 RST-02112 H;Puglicate 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02113 I 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02114 l-Duplicate 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02115 D 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02116 K 720 Air <7.0 <0.004 0 8.89 0.0048 12/18/01 RST-02117 T 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02118 U 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02119 V 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02120 s 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02121 p 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02122 E 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 12/18/01 RST-02123 w 386 Air 7.64 0.008 3*** 32 0.0319 12/19/01 FB121901 Field Blank 0 Air <7.0 n/a NA'"> NA'^> NA'.<2) NA'"' 12/19/01 TB121901 Trip Blank 0 Air <7.0 n/a na'"> nTY "nA(2) 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 forth© TEM method, except for sample C: Trinity (a.k.a. Church) & Liberty Ml : West St. - 50 yards south of Harrison St. at bulkhead RST-02106; volume is based on pump reading Cl: SW comer of Broadway & Liberty St. N: South side of Pier 25 (next to volleyball ct) D: East end of Albany St. at Greenwich St. P: NE comer of South End Ave. & Albany ** Structure (S) is roughly equivalent to fiber (f) E: Western end of Liberty St. at South End Ave Q: Barclay & West St. (center island) in *** Chrysotile F: Northern median strip of Vesey & West St proximity to USCG command post NA*’’ - Not analyzed due to overloading of 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 O I: SE corner of Wall St. & Broadway T: Pier 6 Heliport n/a - Not applicable H J: NE corner of Warren & West St. U: Pier 6 Exit 2 NR - Not requested K K: West St. & Albany in median strip V: Pier 6 Bus Sign NS - Sample not submitted I to L: On walkway toward North Park rec area (north side W: Wash Tent Common Area of Suyvesant High), access to TAGA bus area S o NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 o Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) o Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) I o o to cn to co FL-12-18-01-pm co to

NYC-WTC_000187525