OSHA air sample results chain of custody, 55 Church Street

NYC 9/11 Public Portal Document

L TESTWEL.. LABORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYS ELAP A 11142

M/LAP#200083-0 ANA 9 100147

i--PCM AIR SAMPLE RESULTS • Client: Bovis Lend Lease Date Collected: 02112/02 Date Recd (lab): 02/13/02 Project #: MBO-025AB Analysis Date: 02/13/02 Analyst: D. Agarest Sample Location: The Millenium Hilton 55 Chruch Street Analytical Method: NIOSH 7400 • New York, New York

Field Technician: K. Laverenko/S. Manukov

Sample #: Sample Location: Sample I Work [ 2PCM# Volume Duration Concentration Type Location (min.) f/cc

Sal Maddox Personal Scaffold 05Pers 2605 75 30 0.0490 STEL Entire

_.Sal _Maddox Personal Scaffold 06Pers 2606 450 180 0.0103 Pil l TWA Entire

18Pers Sal Maddox -------------- ---------------- P11 I Personal TWA Scaffold Entire 2618 225 90 0.0109

20 Blank Blank N/A 2620 0 ( 0 N/A

21 Blank Blank N/A 2621 0 0 N/A

Total Duration Sampled (min.) 300 Short Term Exposure Limit (STEL) 0.049C 8 hr. Time Weighted Average (TWA) 0.009C

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.

(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, cr by an equivalent method.

• 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.

777 Deborah McCall- Laboratory Director

NYC-WTC 000103583