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Asbestos exposure levels data sheet

Machine-extracted title · confidence 95%

Data sheet listing permissible exposure levels (PEL) for asbestos adopted by various agencies.

NYC-WTC_000094739–000094748

Folder label: “67 WALL STREET Block: 27 Lot: 17

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NYC 9/11 Public Portal Document

ENVIRO-PROBE, INC. 2917 Bruckner Boulevard - Bronx, New York 10461 Phone: (718) 863-0045 - Fax: (718) 518-7454

BULK MATERIAL ANALYSIS FOR ASBESTOS

TEST METHOD - POLARIZED LIGHT MICROSCOPY - EPA/600/R-93/116, July 1993 NATIONAL VOLUNTARY LABORATORY ACCREDITATION PROGRAM LAB ID# 101222 NEW YORK STATE ENVIRONMENTAL LABORATORY APPROVAL PROGRAM LAB ID# 10898 DATE SUBMITTED: 9/24/01 Central Env. Services DATE ANALYZED: 9/24/01 CLIENT NAME COMPANY DATE REPORTED: 9/26/01 ADDRESS LAB FILE # 23312

CITY,STATE, ZIP ANALYST S. K. Dewan

1. SAMPLING LOCATION 67/69 Wall St., NY. Various Floors 2. CLIENT'S ID# 7 8 9 10 11 12

B01- 20279 20280 20281 20282 20283 20284 3. LAB ID# 4. STEREO-MICROSCOPIC EXAMINATION N N N N N N 1. HOMOGENEOUS (Y/N) 1&4 1&4 1&4 1&4 1&4 1&4 2. COLOR 1. WHITE 2. BROWN 3. GRAY 4. OTHERS •:::<:}: ::.tiff: •::?:::~::ff::.::ti........., : ,`~~yv

5. ASBESTOS DETECTED (YES/NO) '"" . }>}•-~`:••••'••'•'• 6. ASBESTOS PERCENTAGE _ ~•':E:.4:;i':: •ti`..• .•.•.•YhYSi;' } ♦'•'':w`•.•:v., ••••~•• •=' :Lti\titir;::::tii:. •~'~ ""`'•~ ••••""' :.. . ,..,.. .::.,•:>}::>.::.k.:.♦..} ::;'::.~t::`•e'ti``.``.~.}:::::. •:::>`::::::: S:`:~::; •:}; `:err:: titi;:e?::'}:; .}•.•

ti:?:;?.::v;+•:'.:'•:.v::... ~+:. •:v:.v:..:.::v::,:

2. CHRYSOTILE ;:~::.:•„::::::::.: ,,. . .. . }»: :: : : ::-:,: :.: :.:ti. ,.:-::?:}}>}>:ff.. ::$>}:ti:.::,..•:.}:::::;}}}:,.:?<+• 1111111111 ?ff?ti}:v:,..,,,q. Sx::;:.rY..}}?n..}r::r: IllilIliul Ii I '•}:•:,:•:•:/:•:•iii:.}::::.•.•..: ..x .}.:.}•:ry;,.::. w} ti{ ;v. :: ;i

3. CROCIDOLITE iLti{::{• •ff::::•Frff?•}: •:?.}:ti .•rtiti ti::?ii:•:}'•:YLi:::Y : :ti::,:}:~:•,

4. OTHERS :::.,♦. ..: t in ii ii, ilnitlltiull it iuuiuuutuunu, tin finn Hi II 1W

7. TOTAL ASBESTOS PERCENTAGE '':~ '"``: ' . .. :>:::;:<:}:?.}}?~. ::>•.};.},} ~~>'.>'.~>> 8. PERCENTAGE - OTHER FIBROUS MATERIALS 1. CELLULOSE 2. FIBROUS GLASS 40 30 20 20 15 25

3. OTHERS 20 15 20 35 30 20

9. NON-FIBROUS MATERIALS 1. CARBONATES 15 15 15 20 15 20 10 15 10 15 10 10 2. SILICATES 3. OTHERS 15 25 35 10 30 25

10. TOTAL 100 100 100 100 100 100 This report shall not be reproduced except in full, without the written approval of the laboratory. For quantitation purposes 1% Is the concentration at which there Is an uncertainty These results apply to these/this particular samples/sample o This reportis not endorsed by NVLAP or any other U.S. Government Agency .._. Traces=<l% LAB DIRECTORS PERVISOR'S SIGNATURE

NYC-WTC 000094742

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NYC-WTC_000094742Source: NYC Law Department, mirrored locally

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