WKP Air Sample Analysis Report for WTC SW Area, Apr

NYC 9/11 Public Portal Document

90'd TbiOi

WKP LABORATORIES, INC AIR SAMPLE ANALYSIS REPORT PHASE CONTRAST MICROSCOPY

CLIENT: WARREN & PANZER ENGINEERS. P.C. turnarouno time WKP RLE « 531-01 SAMPLE OATS 4/7/2002 WKPLOQI.D.® Ne2C440 RECEIVE DATE 4P^0Q2 Contract 4: WCAR2 ANALYSIS DATE «PttOO2 RETORT DATE 4/512002 CLIENT JOB: NYC Dspariment «f Environmamat ProieeTiQn

CUBNTJOBA: 1070.01.01

LOCATION wrCSampins

ANALYSIS; AIRBORNE FIBER COUNTiHG, PHASE CONTRAST MICROSCOPY, NIOSM 7400. NIOSH PAT Lab NO.OTISftNYSTATBeiAPLeb NO. 11251.’ COLLECTION DEVICE: 25 mm MCE Filler Ceseetip; Colteedon Area » 315 so mm; FieW Area a 0.00755 Sq mm.

SAMPLE WERE COLLECTED BY: Benny QiarrbroriB

SUMMARY OF ANALYSIS CUENT VOLUME FIBERS/ FIBERS/ SAMPLES Step sample location CLirEWS) sqnw ec 1079.01,01 001 6 West Street sms wrsn Btmst 875 3.600 <0.004 002 4 River Tenecs and Chambers Street G73 1.300 <0.004 003 9 River Terrace and Pe.* Place west 076 0.060 <0.004 004 6A River Tenetae Park Area Between Park Plaea and Warren Street 573 S.100 <0.004 639 1? River Tonace end Vesey 575 1.300 <0.004 606 7 Warren Street and North End Avanue 676 3B0C <0.004 007 10 Norm End Avenue Park place West 675 0.000 <0.004 000 BlanK 0.006 009 aank 0.000

NOTES: 1.5.5 fibemM 30 fieMa was used (a caiewlate (he Umit of dateellon (LOD). Results Belew the LOO h«ve no 6iat'«lieai validity. 2. Samples were not callectaa by WKP Laborstories, Ine. 3. The Federal SPA Ctearanes Cnlioai tallowing on asbeatca abatement prefect is o.qio fiberetac, 4. PCM air samples wW be disposed or after 3 mentha unless edieiwise directed by dient in writing.

QM Lauts Lewberdi LABORATORY ANALYST LABORATORY DIRECTOR

Ann An aaaa « a e er<« 90-d IINO Aaoidaoabi whnwh SS:ST Z00S-90-adb

NYC-WTC_000161773