WKP Air Sample Analysis Report for WTC Sampling, May 2002

NYC 9/11 Public Portal Document

WKP LABORATORIES, INC AIR SAMPLE ANALYSIS REPORT PHASE CONTRAST MICROSCOPY

CLIENT; WARREN & PANZER ENGINEERS, P.C. TURNAROUND TIME 24HRS

WKP FILE# 501-01 Sample date 4/29/02

WKPLOGl.O.# N0204231, N0204232, and N0204233 RECEIVED DATE 4/29/02

Contract #; WTC AR2 analysis date 4/3CTO2

REPORT DATE 4/30/02 CLIENT JOB: NYC Department of Environmental Protection CLIENT JOB #; 1079,01.01 LOCATION S.W. /kreaf Site Map ANALYSIS; AIRBORNE FIBER COUNTING. PHASE CONTRAST MICROSCOPY, NIOSH 7400.I. NIOSH PAT Lab NO. 07186; NY COLLECTION DEVICE: 25 mm MCE Filter Cassette; Collection Area = 335 sq mm;

SAMPLE WERE COLLECTED BY; Festy Osemwegie, J- Garcia, and E, Drbra

SUMMARY OF ANALYSIS

CLIENT FIBERS/ FIBERS/ sample# Site# SAMPLE LOCATION Vol. sq mm cc

27 Gateway Plaza Park Area 675 0.00 <0.004 1079.01.01 001 002 31 South End Ave. and Albany Street 675 2.50 <0.004 West Street and Albany Place 67S 0.00 <0.004 003 32 004 33A Rector Place by the Park Place 675 0.00 <0.004

005 34 W. Thames Street - Along Waterfront 675 0.00 <0.004

006 37 West of Third Place 675 0.00 <0.004

007 8 West Street and Warren Street 67S 1.30 <0.004

4 River Terrace and Chambers Street 676 0.00 <0.004 006 008 CA River Terrace Park Area Between Park Piece and Warren Street 676 0.00 <0.004 River Terrace and Park Place West 675 1.30 <0.004 010 9 River Terrace and Vesey 0.00 <0.004 oil 17 676 7 Warren Street and North End Avenue 675 0.00 <0.004 012 North End Avenue Park place West 675 0.00 <0.004 013 10 014 29 Trinity Place and Thames Street 675 1.30 <0.004 Fulton and Church Street 67S 0.00 <0.004 015 21 Vesey Street and West Broadway 675 0.00 <0.004 016 20A 017 16 Park place and Church Street 675 0.00 <0.004

12 Murray Street and Church Street 675 0.00 <0.004 010 Park Place and Greenwich Street 67S 0.00 <0.004 019 15 020 11 Murray Street and Greenwich Street 675 0.00 <0.004

021 Field Blank 0.00 022 Field Blank 0.00

NOTES; 1. S.5 fibers/100 fields was used to calculate the limit of detection (LOD). 2. Samples were not collected by WKP Laboratories, Inc, 3, The Federal EPA Clearance Critical following an asbestos abatement project is 0.010 fibers/cc. 4. PCM air samples wHi be disposed of after 3 months unless otherwise directed by client in writing.

Louis Lombardi

laboratory analyst laboratory director

NYC-WTC_000161812