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Document / 7 pages

DEP Letter regarding 88 Greenwich Street, Feb 2003

Machine-extracted title · confidence 95%

February 2003 letter from DEP confirming non-asbestos material and acceptable air levels at 88 Greenwich Street.

NYC-WTC_000117244–000117250

Folder label: “19 RECTOR ST 1000794, 18/27

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Scanned page image, NYC-WTC_000117246
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NYC 9/11 Public Portal Document 02/21/2003, 13:55_FAx i, one mente ' . 003/007 4 UEVLD/03 18:54 FAK 792 249 3384 - — MGA U1/30 105 18:36 NO.797 03/07 wow ° A Se | — S Environmental Monitoring & Consulting Associates iow B72e ER NJ G8876 « (732) 248-3905 « (72) 240-3384 January 10, 2003 ee eee ne em ee me mee ee Mr, John O'Brian $8 Greenwich LLC 88 Greenwich Street: New York, New York 10006 Dear Mr. O’ Brian: 2a ree ee te a em om Enclosed please find the test resuite of the three dust samples and two ait samples thar were collected at the above referenced location dn December 18, 2002. The three dust samples were collacte4 ber~en masosuy paving stones an the twenty-fourth: floor Sky Lounge balcony and Apartment PII salcony. The dust samples were frst enalyzex| using Polarized Light Mitzoscopy (PLM) and. to have a trace amount (less that one pi rcent) of asbestos. © ? PLM is used to define asbestos containing material in dust and debris. A material is considered te be asbestos contsining material if it ms more than 1% asbestos using the PLM method. The PLM method «nly ccunts the larger fibers. Therefore, if results by PLM wire not greater than 1% asivestos, the sample is then analyzed by the TEM method that does coi nt the smaller fibers. However, TEM analysis is not used for regulatory purposes for dust semples. The dust samples were also analyzed by Trensmisston Electron Microscopy (TEM), ‘Two of the TEM dust samples were non-detected and one sample contained a trace amount of Chr rsotile % —_ 4 re tcene Stat RE cere nent my all cette en tem Fw ete NYC-WTC_000117246

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NYC-WTC_000117246Source: NYC Law Department, mirrored locally

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