WKP Air Sample Analysis Report for WTC SW Area, Apr

NYC 9/11 Public Portal Document

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WKP LABORATORIES, INC AIR SAMPLE ANALYSIS REPORT PHASE CONTRAST MICROSCOPY

CLIENT: WARREN & PANZER ENGINEERS, P.O. lUKNAKUUND IIME 24HRS WKP FILE# 601-01 SAMPLE DATE 4«fi!002 WKP LOG l.D. # N020436 RECEIVE DATE 4/8/2002 Contract#: WTCAR2 ANALYSIS DATE 4/e/2WZ REPORT DATE 4/7/2002 CLIENT JOB: NYC Department of Environmental Protection

CLIENT JOB #: 1079.01.01

LOCATION WTC Sampling

AIRBORNE FIBER COUNTING, PHASE CONTRAST MICROSCOPY. NIOSH 7400. NIOSH PAT Lab ANALYSIS: NO. 07186; NY STATE ELAP Lab NO. 11251. collection DEVICE’ Cassette, Collection Area “ 385 sq mm; Field Area » 0.00785 st) mm.

SAMPLE WERE COLLECTED BY; Festy Osemwegie

SUMMARY OF ANALYSIS

CLIENT VOLUME FIBERS/ FIBERS/ SAMPLE# Site# SAMPLE LOCATION (UTERS) sq mm CC 1079.01 01 001 Field Blank 0.000 002 Field Blank 0.000 {KJ3 29 Trinity Place and Thames Street 87S 0.QQ0 <0.004 004 21 Fulton and Church Street 675 0.000 <0.004 006 20A VsBsy Street and West Broadway 876 0.000 <0.004 006 16 Park place and Church Street 675 0.000 <0.004 007 12 Murray Street and Church Street 675 0.000 <0.004 008 15 Park Place and Greenwich Street 675 0.000 <0.004 OOS 11 Murray 3troet and Greenwich SlrtMit 070 0.000 <0.004

NOTES: 1.5.5 fibars/lOO fields was used to calculate the limit of detection (LOD). Results below the LOD have no statistical validity. 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 will be disposed of after 3 months unless otherwise directed by client in writing.

Chris Pepino Louis Lombardi

LABORATORY ANALYST LABORATORY DIRFCTOR

NYC-WTC_000161774