WTC environmental lab report and data distribution, January 2002

NYC-WTC_000130560 NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 12/20/01 1200 to 2359 Sampling Date 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/20/01 12/21/01 12/21/01 Sampling Sample No. Location RST-02187 RST-02188 RST-02189 RST-02190 RST-02191 RST-02192 RST-02193 RST-02194 RST-02195 RST-02196 RST-02197 RST-02198 RST-02199 RST-02200 RST-02201 RST-02202 RST-02203 RST-02204 T-Duplicate U-Dupicate RST-02205 RST-02206 RST-02207 RST-02208 FB122101 TB122101 Field Blank Trip Blank Sample Volume* 720 36**** Matrix Air Air Air 710 720 720 720 720 568 720 720 720 720 720 720 Air •Air PCM by NIOSH 7400 f/mm? <7.0 <7.0 <7.0 8.92 8.28 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 <7.0 f/cc <0.004 <0.004 <0.075 0.005 0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.005 <0.004 <0.004 <0.004 <0.004 <0.005 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004- n/a n/a Structures (#) 0.5u - 54 NA(2) NA(2) TEM (AHERA) S/mm? 0000 5**1 <8.89 <8.89 <8.00 <8.89 <8.89 44.44 8.89 <8.89 <8.89 <8.89 <8.00 <8.89 <8.89 <8.89 <8.89 <8.00 <8.89 <8.89 <8.89 <8.89 <8.89 NA(2) NA(2) <8.89 NA(2) NA(2) Sampling Locations: A: NE corner of West Broadway & Barclay B: SE corner of Church & Dey St. C: Trinity (a.k.a. Church) & Liberty C1: SW corner of Broadway & Liberty St. 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. I: 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 M: Western end of Harrison St. at West St. (on tree next to bulkhead) M1 : West St. - 50 yards south of Harrison St. at bulkhead N: South side of Pier 25 (next to volleyball ct) P: NE corner of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location S: Rector & South End T: Pier 6 Heliport U: Pier 6 Exit 2 V: Pier 6 Bus Sign W: Wash Tent Common Area of Suyvesant High), access to TAGA bus area NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm?, volume 1200 L, for 25 mm filter (TEM) Data Validation Date: 12/27/01 S-f/cc** <0.0048 <0.0048 <0.0856 <0 0048 <0.0048 0.0238 0.0048 <0.0048 <0.0048 <0.0048 <0.0059 <0.0048 <0.0048 <0.0048 <0.0048 <0.0054 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 NA(2) NA(2) * Sample volume (itrs) is below recommended limit for the TEM method; volume is based on pump reading * Structure (S) is roughly equivalent to fiber (f) *** Chrysotile **** Extremely low sample volume collected. NA(1) - Not analyzed due to overloading of particulates NA(2) - Not analyzed for TEM n/a - Not applicable NR - Not requested NS - Sample not submitted at this time FL-12-20-01-pm