OSHA air sample results chain of custody, 55 Church Street

NYC 9/11 Public Portal Document

TESTWEL LABORATORIES, INC. • L Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYSElAP#11142

M/LAP#200083.0 AHA # 1C0147

PCM AIR SAMPLE RESULTS • Client: Bovis Lend Lease Date Collected: 02/14/02 Date Rec'd (lab): 02/15/02 Project #: MBO-025AB Analysis Date: 02/15/02 Analyst: J. Yarusso Sample Location: The Millenium Hilton 55 Chruch Street Analytical Method: NIOSH 7400 • New York, New York

Field Technician: K. Laverenko/S. Manukov

Sample Work Sample P #: Sample P Location: Type Location OZPCM # Volume _ tD uration Concentration (min.) f/cc

02Pers _ _._._.LeonardLewis._._., Personal Entire Ph i 2808 75 30 0.0687 STEL Building

04Pers __. Leonard L_e_w_is_- - Personal Entire TWA 2810 525 210 0.0051 PII Building

S 07Pers _._Leonard Lewis_._. Personal Entire 2813 576 Building 240 0.0222

10 Blank Blank N/A 2816 0 0 N/A

11 Blank Blank N/A 2817 0 0 N/A

Total Duration Sampled (min.) 480 Short Term Exposure Limit (STEL) 0.068' 8 hr. Time Weighted Average (TWA) 0.0171

(c) Permissible exposure limits (PELS)

(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 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.

i2) 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.

air respirator equip 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 McCarr - Laboratory Director

NYC-WTC 000103545