NYC-WTC_000210313

NYC 9/11 Public Portal Document

208 Stonehinge 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 5g Asbestos (mm^) (S/cc) (S/cc) 77 1220.00 Chrysotile 1 0 0.0635 0.0050 15.75 0.0050

78 2400.00 None Detected 0 0.0635 0.0025 <15.75 <0.0025

79 1300.00 None Detected 0 0.0635 0.0047 <15.75 <0.0047

80 1310.00 None Detected 0 0.0635 0.0046 <15.75 <0.0046

81 1320.00 None Detected 0 0.0635 0.0046 <15.75 <0.0046

82 1200.00 None Detected 0 0.0635 0.0051 <15.75 <0.0051

Daniel Clarke Analyst Approved Signatory nisdaime'S- This laboratory is not responsible for data reported in struclures/cc, which is dependent on volume collected by non-laboratory personnel. Ttiis lahoratcry is only responsible for data reported in struclures/mm*. This report may not be reproduced, except in full, wilhOL* written approval by EMSL. Ttiis report must not be used to c aim product endorsement by NVLAP or any agency of the U.S. Government. This report relates only to the samples o reported above Quahty control data (including 95% confidence limits and laboratory and analysts' accuracy and precision) is &va>:able upon request.

for NVLAP PLM/TtM #101048-10, NY ELAP 11469, CIA ELAP C.h PH 0249

CITY_21MC100_002843210

NYC-WTC_000210317