Cover page for bulk dust sample analysis, 110 Church Street,

NYC 9/11 Public Portal Document AU/ AU/ 4UUl C) A. JU J1 UJJ ! ( JLU

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

STEVE POWELL Attn.: Environmental Monitoring R Consulting Assoc. Monday, October 15, 2001 (EM & CA) P_O_ Box 872 Ref Number LI0115738 Somerville, NJ 08876

Li POLARIZED LIGHT MICROSCOPY(PLM)- POINT COUNT Performed by EPA 600/R-93/116 Method* Project: 110 CHURCH ST NY, NY

Sample ASBESTOS NON-ASBESTOS Sample Location Appearance Treatment % Type % Fibrous % Non-Fibrous 50-17-001 17TH FLR / S Grey Teased/Crushed None Detected 20.% Cellulose 30.% Other CENTER SIDE Fibrous 50.% Min. Wool

I Heterogeneous

50-17-002 17TH FLR / 2 Grey Teased/Crushed None Detected 10.% Cellulose 50.% Other

I CENTER SIDE Fibrous Heterogeneous 40_% Min. Wool

I 1111-17.003 1 7TH FLR/ 110 CHURCH ST SE CENTER OF FLR Grey Fi • rous Heterogeneous Teased/Crushed None Detected 5'/e Cellulose 30.% Min. Wool 65.% Other

110-16-001 16TH FLR / S Grey Teased/Crushed None Detected 30.% Cellulose 60.% Other CENTER SIDE 10.% Min. Wool Fibrous Heterogeneous

110-15-002 16TH FLR / E SIDE Grey Teased/Crushed None Detected 5.% Cellulose 30.% Quartz Fibrous 5.% Min. Wool 60.% Other Heterogeneous

50-16-003 16TH FLR /N Grey Teased/Crushed None Detected 25.% Cellulose 65.% Other

11 CENTER SIDE Fibrous Heterogeneous 10.% Min. wool

r

Comments: For all obviously heterogeneous samples easily separated into subsamples, and for layered samples, each component Is analyzed separately. Also, "# of Layers" refers to number of separable subsamples. ' NY samples analyzed by ELAP 198.1 Method.

Note: "Two samples were submitted with ID50-28-002, both results given.

Michelle McGowan Approved Analyst Signatory I Diacismars: PLM has bean known to miss asbostW In a smell percentage at samples which contain asbesws. Thus nagattve PLM results cannot be guwantaed. EMSL v4Masts that samples raportad as <1% or ngno dateeted be tested With either SEM or TEM. The boo last report ratetes onl t0 the horns toUnd. This report may not De reproduced, incept in udl, without written approval by EMSL. Tne above lest must not be used by 1hs client to 4 claim product endorsement Dy PNIAP nor env agency of the United Buhr, GWarrunent. Laboratory Is not responsible for the a=urscy of rosutts when requested to physicsflV separate and analyze Layered salnplas.

I L. ysis porformaO by EMSL Long Island (NvtAP air and Buk /10104&10, NY ELAP 11469, CA ELAP 2339, CT PH-0249)

I 000098122 NYC-WTC