NYC-WTC_000210350

NYC 9/11 Public Portal Document

, 20S .^toiie/iiiige Lci/ie EMSL Analytical, Inc. Carle Place, NY 11514

Attn.: Phone: (516) 997-7251 Pax: (516) 99 7-7528 gWi® ! i 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.

SSTRUCTURES Analytic.!! Volume Asbestos S 0.5;i- Non- Area Analyzed Sensitivity Asbestos Concentration Sample ID < 5(1 s 5(t Asbestos (liters) Typc(s) (in nA) (S/cc) (S/inin') (S/cc) 71 1400.00 None Detected 0 00635 0.0043 <15.75 <0.0043

72 1410.00 None Detected 0 0.0S35 0.0043 <15.75 <0.0043

73 1400.00 None Detected 0 0.0635 0.0043 <15.75 <0.0043

74 1230.00 None Detected 0 0.0635 0.0049 <15.75 <0.0049

75 1230.00 None Detected 0 0.0635 0.0049 <15.75 <0.0049

76 1240.00 None Delected 0 0,0635 0.0049 <15.75 <0.0049 I

Daniel Clarke T Analyst Approved Signatory

Oisclainisfs: This laboratory is not responsible for data reported in structures/cc, v.hich is dependent on volume coHecied by non-labQralor>' pe scnne!. Tni.s laboratory is only responsible for data reported in stfuciures/mm’. Ttiis report may not be reproauc^d. except in lull. ••.'ilhoul written approva' by tMSl This report niusl not I? used to claim product endorsement by NVLAP or a.ny agency of the U.S. Government. Tins rcp« 1 relate;-, only to t! ic samples reiJOrted above. Quo!; y control data (including 95% confidence limits and laboratory and analysts' accuracy and iijisicn) is ava-iab!*} upon reoues’

l-.r NVl.,'-.!' PLK/rKM iilljl0.‘.5.10. NY Cl-IV’ CA E l 7 PH-024:9

CITY_21MC100_002843291

NYC-WTC_000210353