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NYC-WTC_000220400

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000220400–000220414
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NYC 9/11 Public Portal Document

Hillmann Environmental Group, LLC

V. Combustible Gasses (LEL) concentrations were analyzed using a Rae Systems Multi-Rae Four Gas meter that has a 0-100% range and a limit of detection of 1.0%.

VI. Airborne Asbestos concentrations are determined by drawing air through a 25 mm TEM cassette, for a minimum of 1300 Liters. The samples are then analyzed by Transmission Electron Microscopy, conducted by an appropriately accredited laboratory, in accordance with NIOSH Method 7402. 10% of the samples analyzed by PCM are also analyzed by TEM. The 10% are selected at random.

VIL Bulk samples were collected following EPA recommended sample collection procedures.

Cushman & Wakefield/44 Wall Street, New York, NY/Project Number N3-7476 Page 4

CITY_21MC100_002388355

NYC-WTC_000220406

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NYC-WTC_000220406Source: NYC Law Department, mirrored locally

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