NYC-WTC_000210313

NYC 9/11 Public Portal Document

208 Stoneliinge Lane EMSL Analytical, Inc. Carle Place, NY 11514 Phone; (516) 997-7251 Fax: (516) 997-7528 EMSL Attn.: Commercial Lab Enterprise Tuesday, October 23, 2001 270 Swinton Avenue Bronx, NY 10465 Ref Number; LI0116152

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA)

Project: BUILDING # 9 310 GRENNWICH STREET NYC, NY/30TH FLOOR FILE NO. 01231.

#STRUCTURES Analytical Volume Asbestos 2: 0.5(1 - Non- Area Analyzed Sensitivity Asbestos Concentration Sample ID (liters) Type(s) <5(1 2 5g Asbestos (mm’) (S/cc) (S/mm’) (S/cc) 50 1240,00 Chrysolite 1 0 0.0635 0.0049 15.75 0.0049

54 1250,00 None Detected 0 0.0635 0.0049 <15.75 <0.0049

55 1260,00 None Detected 0 0,0635 0,0048 <15.75 <0.0048

56 1270.00 None Detected 0 0.0635 0.0048 <15.75 <0.0048

57 1250.00 None Detected 0 0.0635 0,0049 <15.75 <0.0049

58 1260.00 None Detected 0 0.0635 0.0048 <15.75 <0.0048

Daniel Clarke Analyst Approt/ed Signatory I Dfsclaiine's' i his laboratory is rot responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laboratcry is only responsible for data reported in siruclures/mm’. This report may not be reproduced, except in full, witfioul w-itten approval by EMSL. Ttiis report must not be used to claim product endorsem^^nt by NVLAP or any agency of t.he tt.S Government. This report relates only to the samples reported above Quality control data (including 9S% confidenco limits and laboratory and analysts’ accuracy and precision) is available upon request /

Jreciited tn' NVIAP PLM/TEM #101048-10, NY ELAP 11469, CA ELAP 2339 CT PH-C249

CITY_21MC100_002843206

NYC-WTC_000210313