Air sample analysis report for WTC sampling, April 2002

NYC 9/11 Public Portal Document

WKP LABORATORIES, INC AIR SAMPLE ANALYSIS REPORT PHASE contrast microscopy

CLIENT: WARREN a PANZER ENGINEERS, P.C. TURNAROUND TIMg 24HRS WKP FILE# 301-01 SAMPLE DATE 4/11/02 WKPLOGI.D.# N0204G2, N020403, N080404 RECEIVED DATE 4/11/02 Contract#: WTCAR2 ANALYSIS DATE 4/12/02 REPORT DATE 4/12/02 CLIENT JOE: NYC Department ot Environmental Protection

CLIENT JOB#: 107B.01.01

LOCATION WTC Sampling-NYC

ANALYSIS: AIRBORNE FIBER COUNTING, PHASE CONTRAST MICROSCOPY, NIO3H 7400. NIOSH PAT Lab NO. 071B6; NY STATE ELAP Lab NO. 11281. COLLECTION DEVICE: 23 mm MCE Filter Cassatts; Collection Area » 3BS sq mm; Field Area » 0.00785 sq mm.

SAMPLE WERE COUECTEO BY; Lawrence Baer, Benny Giamhnana, and J. Garcia

SUMMARY OF ANALYSIS CLIENT VOLUME FIBERS/ SAMPLE# Sita# SAMPLE LOCATION (LITERS) sq mtn FIBERS/ co 1079.01.01 001 Field Blank 0.0 002 Raid Blank 0.0 006 27 Gateway Plaza Park Area ore 0.0 <6.004 004 31 South End Ave. and Albany Street 673 7.6 0.004 003 32 West Street and /Ubany Place 673 1.9 <O.004 006 33A Rector Place by the Park Place 67S 4.5 <0.004 007 34 W.Thamee Street-Along Waterfront 678 12.7 0.007 006 37 West of Third Place 67S 6.4 0.004 OOB B West Street and warren Street 676 6.1 <0.004 010 4 River Terrace and Chambers Street 676 1.3 <0.004 Oil 6A River Terrace Park /Vaa Between Park Place and Warren Street S7S 7.6 0.004 012 6 River Terrace and Park Place West 675 7.6 0.004 013 17 River Tarraoe and Vesey 876 10.2 0.006 014 7 Warren Street and North End Avenue B7S 6.1 <0.004 013 10 North End Avenue Park plaoa West 67S 10.2 0.006 016 26 Trinity Place and Thames Street 678 13.4 0.006 017 21 Fulton and Church Street 673 14.6 0.008 018 20A Vesey Street and West Broadway 675 15.3 O.ODB 019 16 Park place and Church Street 675 6,1 <0.004 020 12 Murray Street and Church Street 675 15.8 0.000 021 IS Park Place and Greenwich Street 675 3.1 <0J)04 022 11 Murrey Street and Greenwich Street 675 B.3 0.005

NOTES; 1.6.5 <lbar</lOO fields was used to oatouiaie the limit er detection (LOD). Results below (he LOO have ne statislicai vaiwiiy, 2. Samples ware net eelleeted by WKP Laboratories. Inc. 9. The Fedemi EPA Clearance CrWcel foiewing an asbestos abatomont project Ie 0.010 fibere/cc. PCM air samples win be diepesed e( etter 3 months unless otherwise dlrscted by client In writing.

David Multokandov LABORATORY ANALYST LABORATORY DIRECTOR

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