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

NYC 9/11 Public Portal Document 1t'J/lb/2b1l ti'3:db bibJ`JI/b'Ld LM5L Li t-'Fatal iii

208 ge EMSL Analytical, Inc. Corle[Place, unehLi*NX 514 Phone; (516) 997-7251 Fax: (516) 997-7528 Attn.: STEVE POWELL Environmental Monitoring & Consulting Assoc, Monday, October 15, 2001 (EM & CA) P.O. Box 872 Ref Number. LI0115738 Somerville, NJ 08876

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 Aoue iranee o' • Fibrous % NDU-Fibrous 110-14-001 14Th FIR IS Gfey Teased/Crushed <1% CENTER SID EOF Chrysolite 40.% Fiber Glass 55.% Other FLR Fibrous 5.0x6 Cellulose Heterogeneous

~V-14-uUZ 14 rH FLR I E SIDE Grey Teased/Crushed I None Detected Cellulose 40.% Ca Carbonate Fibrous 55.% Matrix' Heterogeneous

50-14-003 14TH FLR / S SIDE Grey < 1%Chrysotile 10.% Cellulose 50.% Other Fibrous 10.% Min. Wool Heterogeneous

3-001 113TH FLR / S SIDE Grey None Detected I 5.% Cellulose 9S.% Other Fibrous Heterogeneous

50-13-002 13TH FLR/ ELEV IGrey BANK None Detected 1 5.`6 Cellulose 95.% Other I Fibrous IHeterogeneous 110.13-003 13TH FLR-E SIDE Grey None Detected I 10% Cellulose 80.% Other Fibrous 10.% Fiber Glass Heterogeneous

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

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

Michelle McGowan — ,~— Analyst Approved Dleeleimerc: PLM has been known to mew asbestos in a small Signatory 0ercenlage of samples whl h ewwin asbestos. Thus negative guaranteed EMSL eupgests that samples reported as <1Y or none PLM results cannot be detected be tested with ether SEM at-Teat. The above test the hams tested This report may not be reproduced, except in ragelt relates any to 10 full, w4h0i4 written approval by EMSL The above test claim product endorsement by NVIAP rev any agency of Ile must not be used by the dent to Unitod States Government. Laboratory Is not .osponabla ter rte reauoAsd to pl geicdb yop:t-ta and array Ze xye+ed samples. a¢urscy of results rbon is performed by EMSL Lag Wand (NVLAp Mr and Bulk 0101048-10, NY ELAP 11459. G ELAP 7339. CT PH -a249)

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