WTC environmental lab report and data distribution, January 2002

NYC-WTC_000130575 NYC Response Asbestos Air Sampling Sampling Date and Results at Fixed Locations Time: 12/19/01 1200 to 2359 Data Validation Date: 12/22/01 PCM by NIOSH 7400 TEM AHERA) Sampling Date Samp! Sampling Location Sample Volume* Matrix fimm? ficc Structures (#) 0.5y - 5y 5y Simm? S~ficc™* 12/19/01 | RST-02143 L 720 Air 7.64 0.004 <7.87 <0.0042 12/19/01 | RST-02144 L-Dup 720 Air <7.0 <0.004 <8.75 <0.0047 12/19/01 | RST-02145 M-1 720 Air 10.19 0.005 <8.75 <0.0047 12/19/01 N 695 <7.0 <0.004 <8.75 <0.0048 12/19/01 N-Dup 720 Air 7.64 0.004 <8.75 <0.0047 12/19/01 720 Air <7.0 <0.004 <8.75 <0.0047 12/19/01 720 Air <7.0 <0.004 <8.75 <0.0047 12/19/01 720 Air 10.19 0.005 <8.75 <0.0047 12/19/01 720 Air 7.64 0.004 - 8.75 0.0047 12/19/01 720 NA‘? NAW <8.75 <0.0047 12/19/01 720 Air 8.28 0.004 <8.75 <0.0047 42/19/01 1224* Air 11.46 0.004 <15.75 <0.0050 12/19/01 720 8.92 0.005 <8.75 <0.0047 42/19/01 720 Air 10.83 0.006 <8.75 <0.0047 12/19/01 720 Air <7.0 <0.004 <8.75 <0.0047 12/19/01 720 Air <7.0 <0.004 <8.75 <0.0047 12/19/01 720 Air 7.01 0.004 <8.75 <0.0047 12/19/01 720 <7.0 <0.004 <8.75 <0.0047 12/19/01 662 <7.0 <0.004 <8.75 <0.0051 12/19/01 720 10.83 0.006 <8.75 <0.0047 12/19/01 4224* 7.64 0.002 <8.75 <0.0028 solu] ojolr]—jalxieia}>jola jw] = 12/19/01 463 NS - NS clofololololololo] ofolololojololofojolololY $ 1p) slololololololol§ | ojolololalolofojololola/Y NS NS 12/20/01 Field Blank 0 <7.0 nia NA®@ NA?) NA®) NA®) RST- RST- RST-0214: RST- RST-021 RST- RST- RST- RST- RST-02155 RST- RST-0215 RST- RST- RST- RST- RST- RST- RST- F TI 12/20/01 Trip Blank 0 <7.0 Wa NAD | NA® NA”) NA® 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 Il: SE comer of Wall St. & Broadway J: NE comer of Warren & West St. K: West St. & Albany in median strip L: On walkway toward Manhattan Plaza at Pine St. North Park rec area (north side of Suyvesant High), access to TAGA bus area 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 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 40C FL-12-19-01-pm FR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 Simm’, volume 1200 L, for 25 mm filter (TEM) Key: * Sample volume (liters) is below recommended limit for the TEM method, except for samples RST-02154 and RST-02163; volume is based on pump reading * Structure (S) is roughly equivalent to fiber (f) ** Chrysotile NA" - Not analyzed due to overloading of particulates NA®)~ Not analyzed for TEM n/fa- Not applicable NR - Not requested NS - Sample not submitted NYC 9/11 Public Portal Document