NYC-WTC_000229714

NYC 9/11 Public Portal Document

TESTWELL LABORATORIES, INC. Environmental Laboratory NYS ELAP #11142

47 Hudson Street, Ossining, New York 10562 NVIAP s 200083.0 AIHA# 100147

PCM AIR SAMPLE RESULTS Client; Bovis Lend Lease Date Collected: 07/19/02 Date Rec'd (lab); 07/20/02 Project #; MBO-025AB Analysis Date: 07/22/02 Analyst: M. Benderson Sample Location The Millenium Hilton 55 Chruch Street Analytical NIOSH 7400 New York, New York 10007

Field Technician: B.Gitman

Sample #; Sample Location: Sample Type 02PCM # Volume Concentration f/cc

1031 Person Decon During 22284 1250 0.0035

1032 Waste Decon During 22285 1250 0.0018

1033 Level C, N-E Section, Inside Airicck During 22286 1250 0.0027

Level C, N-E Section, Outside 1034 During 22287 1250 0.0031 Airlock

1035 Person Decon During 22288 1300 <0.0021

1036 Waste Decon During 22289 1300 <0.0021

1037 Level C, N-E Section, Inside Airiock During 22290 1200 0.0026

Level C, N-E Section, Outside 1038 During 22291 1200 0.0015 Airlock

1039 Blank During 22292 N/A N/A

1040 Blank During 22293 N/A N/A

________ _______________________ _____ L__J__________ * Limit of quantitation based on volume of air collected and 5.5 f/100 fields as per the NIOSH 7400 meihod. 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 McCarl - Laboratory Director

CITY_21MC100_011963119

NYC-WTC_000229714