OSHA air sample results chain of custody, 55 Church Street

NYC 9/11 Public Portal Document

JJL TESTWELL LABORATORIES, INC. 1 Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NrS SLAP 511142 NVLAas2000S3-0 AIHA # 100147

PCM AIR SAMPLE RESULTS Client: Bovis Lend Lease Date Collected: 02/20/02 Date Rec'd (lab): 02/21/02 Project#: MBO-025AB Analysis Date: 02/21/02 Analyst: J. Yarusso Sample Location: The Millenium Hilton 0 55 Chruch Street Analytical Method: NIOSH 7400 New York, New York

Field Technician: K. Laverenko/S. Manukov

Sample #: Sample Location: I Sample Work 02PCM # Volume Duration Concentration Type Location I (min.) f/cc

02Pers Joe._Salemo._._._._ Personal Scaffold 3241 525 210 0.0051 PII TWA Entire Joe Sal_e_m_ _o_ Personal Scaffold 07Pers ------ - Pii- 3246 360 150 0.0075 - - TWA Entire

10 Blank Blank N/A 3249 0 0 N/A

11 Blank Blank N/A 3250 0 0 N/A

Total Duration Sampled (min.) 360 8 hr. Time Weighted Average (TWA) 0.0046

(c) Permissible exposure Omits (PELS) a (2) Excursion limit The employer shall ensure that no employee is exposed to an airborne concentration of asbestos in excess of 1.0 fiber per cubic ltimeter of air (1 f/cc) as averaged over a sampling period of thirty (30) minutes, as determined by the method prescribed in Appendix A to this section, or an equivalent method.

(c)(2) Excursion limit The employer shall ensure that no employee is exposed to an airborne concentration of asbestos in excess of 1.0 fiber per cubic

I centimeter of air (1 f/cc) as averaged over a sampling period of thirty (30) minutes, as determined by the method prescribed in Appendix A to this section, or by an equivalent method.

with HEPA

Limit of quantitation based on volume of air collected and 5.5 f/100 fields as per the NIOSH 7400 method. The report value is • calculated by using the higher value of either the actual concentration or the limit of quantification reported at P(0.05) indicating the 95% confidence level at 2 standard deviations. " Sample information is provided by the client & presented as stated. "' Laboratory QC data available upon request. •"' The laboratory has no control over air sampling collection, Reports are the confidential property of our clients. This certificate of analysis/report shall not be used by the client to claim product endorsement by the National Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States Government. This certificate of analysis/report shall not be reproduced except in full, without the written approval of Testwell Laboratories, Inc.

Deborah McCall - Laboratory Director

NYC-WTC 000103474