OSHA air sample results chain of custody, 55 Church Street

NYC 9/11 Public Portal Document

TESTWEL_ LABORATORIES, INC. Environmental Laboratory NYS FLAP a 11142

47 Hudson Street, Ossining, New York 10562 W&AP#200083-0 AIHA # 100147

,.-PCM AIR SAMPLE RESULTS w Client: Bovis Lend Lease Date Collected: 02/15/02 Date Recd (lab): 02/16/02 Project #: MBO-025AB Analysis Date: 02/16/02 Analyst: L. Chivarini Sample Location: The Millenium Hilton 55 Chruch Street Analytical Method: NIOSH 7400 New York, New York • Field Technician: K. Laverenko/S. Manukov

Sample Work Duration1Concentration Sample #: Sample Location: 02PCM # Volume Type Location (min.) f/cc •

Victor Soto Personal Windows 05Pers 2877 75 30 0.0360 P11 STEL Entire Bldg. Victor Soto Personal Windows 06Pers ------ 2878 288 120 0.0094 Entire Bldg.

Victor.Soto_._._._._._. Personal Windows 09Pers __ PII 2881 450 180 0.0060 TWA Entire Bldg.

12 Blank Blank N/A 2884 0 0 N/A

13 Blank Blank N/A 2885 0 0 NIA •

Total Duration Sampled (min.) 330 Short Term Exposure Limit (STEL) 0.0360 8 hr. Time Weighted Average (TWA) 0.0069

(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.

(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 1/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.

IRespIratory Protection: Half face negative air respirator equip with HEPA cartridge.

Limit of quantitation based on volume of air collected and 5.5 8100 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. S. Deborah McCar/ - Laboratory Director

NYC-WTC 000103531