OSHA air sample results chain of custody, 55 Church Street

NYC 9/11 Public Portal Document

• L TESTWEL' '.ABORATORIES, INC. Environmental Laboratory NYS ELAP # 11142 47 Hudson Street, Ossining, New York 10562 tPAAP0200083-0 ALMA #100147

PPCM AIR SAMPLE RESULTS • Client: Bovis Lend Lease Date Collected: 02/14/02 Date Recd (lab): 02/15/02 Project #: MSO-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 Duration Concentration Sample #: Sample Location: 02PCM # Volume Type Location (min.) f/cc

04Pers , .htlit:kiaal.Carlsnm_. Personal Glass P11 STEL Delivery 2798 75 30 0.0392

08Pers , .Mtohael_.0 rlson._._., P11 Personal TWA Glass Delivery 2802 445 178 1 0.0154

S 10Pers _.Michael Cafl*q.tl-...- __________________________ PII 1 Personal 7NA Glass Delivery 2804 432 180 I 0.0782

11 Blank Elank N/A 2805 0 0 N/A

12 Blank =lank N/A 2806 0 0 N/A

Total Duration Sampled (min.) 388 Short Term Exposure Limit (STEL) 0.0392 8 hr. Time Weighted Average (TWA) 0.0375

(c) Permissible exposure limits (PELS)

(c)(2) Excursion limit. The employer shall ensure that no employee is ex--.csed 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 (3C) 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 excsed 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.

RespIratory Protection: Half face negative air respirator equip with HE?A cartridge. Respiratory

Limit of quantitation based on volume of air collected and 5.51/100 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. S

Deborah McC cCarf --Laboratory Director

S

NYC-WTC 000103540