Laboratory report for 310 Greenwich Street, May 2002

NYC 9/11 Public Portal Document

208 Stonehinge Lane EMSL Analytical, Inc. Carle Place, NY 11514 Phone: (516) 997-7251 Fax: (516) 997-7528

Attn.: Commercial Lab Enterprise Saturday, October 27, 2001 270 Swinton Avenue Bronx, NY 10465 Ref Number: L10116352

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

# STRUCTURES Analytical Volume Asbestos y O.5 s - Non- Area Analyzed Sensitivity Asbestos Concentration Sample ID (liters) Type(s) < Sµ Z 5µ Asbestos (mm') (S/cc) (S/mm2) (S/cc) 280 1300.00 None Detected 0 0.0635 I 0.0047 I <15.75 <0.0047

281 I 1300.00 None Detected 0 0.0635 I 0.0047 I <15.75 <0.0047

11282 I 1300.00 I None Detected I 0 I 0.0635 I 0.0047 I <15.75 <0.0047 1

1283 I 1300.00 I None Detected I 0 I 0.0635 I 0.0047 I <15.75 <0.0047 I

1284 I 1320.00 I None Detected I 0 I 0.0635 I 0.0046 I <15.75 <0.0046 I

1285 1 1270.00 I None Detected I 0 I 0.0635 I 0.0048 I <15.75 <0.0048 I

Earl Tracey -ry Analyst Approved Signatory Disclaimers: This laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laboratory is only responsible for data reported in structures/mm'. This report may not be reproduced, except in Lull. without written approval by EMSL. This report must not be used to claim product endorsement by NVLAP or any agency of the U.S. Government. I his report relates only to the samples 4 reported above. Quality control data (including 95% confidence limits and laboratory and analysts accuracy and precision) is available upon request

, edited for NVLAP PLM/TEM #101048.10, NY ELAP 11469, CA ELAP 2339, CT PH-0249

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NYC-WTC 000134838