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 & PANZER ENGINEERS. P.C. TURNAROUND TIME 24HRS WKP FILE# 6014)1 SAMPLE DATE 4/9/02 WKPLOQI.D.# 151 RECEIVED DATE 4/^2 Contract#; WrCAR2 ANALYSIS DATE 4/10«)2 REPORT DATE 4/10/02 CUENTJOB: NYC Department of Environmental Protection

CLIENT JOB#: 1079,01.01

LOCATION WTC Samplino ANALYSIS: AIRBORNE FIBER COUNTING. PHASE CONTRAST MICROSCOPY. NIOSH 7-»O0. NIOSH PAT Lab NO. 07168; NY STATE ELAP Lab NO. 11251. COLLECTION DEVICE: 25 mm MCE Filter Cassette: Collection Area = 3B8 sq mm; Field Atm a 0.007S5 sq mm.

SAMPLE WERE COLLECTED BY: Banny Giambrone

SUMMARY OF ANALYSIS CU5NT VOLUME FIBERS/ FIBERS/ SAMPLE# Site# SAMPLE LOCATION (LITERS) sq mm cc 1079.01.01 001 6 West Street and Warren Street 876 1.3 0.004 002 4 River Terrace and Chambers Street 67S 5.1 <0.«J4 003 6A River Terrace Parft Area Between Park Place and Warren Street 678 11.5 0.007 004 9 River Terrace and Park Place West 675 2.5 <0.004 005 1? River Terrace and Vesey STS 1.3 <0.004 006 7 Warren Street and North End Avenue 675 9.8 0.005 007 10 North End Avenue Park place West 675 8.3 0.005 008 Blank Q.O 009 Blank 0.0

1

NOTES: 1. S.S fibers/100 Helds was used to calculale the limit of detection (LOD). Results below Hie LOD have no statistioal validity. I Th^F^^ EPA ClX^ranX'cn^o^fotow^^^ abatement project is 0.010 fftare/cc.

4. PCM ter samples will be disposed of after 3 months unless otherwise directed by client in writing.

DM

laboratory analyst LABORATORY DIRECTOR

NYC-WTC_000161713