NYC-WTC_000210417

NYC 9/11 Public Portal Document ait on ean ee Attn.: (EM & GA) P.O, Box 872 Somerville, NJ EMST Analytical, Inc. STEVE POWELL Environmental Monitoring & Consutting Assoc. 08876 208 Stonchinge Lane Carle Place, NY 11514 Phone: (S16) 997-7251 Monday, October 15, 2001 Ref Number: Fax; (516) 997-7528 110115738 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 50-09-001 STH FLR/S SIDE | Grey Teased/Crushed 1.8% Chrysotile 20.% Cellulose 58.2% Other Fibrous 20,.% Min. Wool | Heterogeneous | 50-03-002 STH FLR/N SIDE {Grey Teased/Crushed None Detected 40.% Cellulose 80.% Matrix Fibrous 10.% Min. Wool : Heterogeneous fito-09-003 = |STHFLR/SW | Grey Teased/Crushed None Detected | 20.% Cellulose 60.% Other CORNER Fibrous 20.% Min. Woo! Heterogeneous [7110-08-00 8TH FLR/ SW Grey Teased/Crushed 1.3% Chrysotile 20.% Cellulose §8.7% Other CORNER Fibrous 20.% Min, Woo} Heterogeneous 50-08-002 ‘}8TH FLR/N Grey Teased/Crished None Detected 30,% Callulose 40.% Other | CENTER SIDE Fibrous 30.% Min. Woo! Heterogeneous 50-08-003 8TH FLR/N SIDE | Grey Teased 0.23% Chrysotile 30.% Cellulose 39.77% Other , Fibrous 30.% Min. Wool Heterogeneous \ | Daniel Clarke Analyst Disclaimers: PLM nas been known to miss Note: “*Two samples were submitted with [D50-28-002, both results given. in a emall por comments: For all obviously heterogeneous samples easily separated into subsamples, and for layered samples, each component is analyzed separately, iso, “# of Layers" refers to number of separable subsamples. “NY samples analyzed by ELAP 198.1 Method. which contain asbestos. Thus negative PLM results cannot ba gueranteed, EMSL suggests that samples roporied a3 <1% of non detectad’ be tested with ether SEM or TEM. Tho ebove tes! report felsins only to the items testa. Thix report May nt Be repraduced, except in full, without writian approval by EMSL. The above test must nol be used by the client to Clagn product endorsement by NVLAP nor any agency of the United States Goverment. Latoralory Is not responsible for the securacy of resuks when fequedtiad to physically separate and aneiyze layered sampias. lysis pertonned by EMSL Long island (NVLaP alr end Bulk #101048-10, NY ELAP 11469, CA ELAP 2335, CT 9.0244) Approve: Signatory 17 NYC-WTC_000210427 CITY_DEP_WORBY_CANNATA_SUBP_000021 190