NYC-WTC_000199948

NYC 9/11 Public Portal Document

SEVERN TRENT LABORATORIES, INC. PRELIMINARY DATA SUMMARY

The results shown below may still require additional laboratory review and are subject to change. Actions taken based on these results are the responsibility of the data user.

! STL Edison PAGE 1 Lot »; G2P260234 New York Date Reported; 7/12/02 Project Number; X739 REPORTING ANALYTICAL PARAMETER RESULT LIMIT UNITS KETHQD

Client Sample ID: X739-358355 Sample #: 001 Date Sampled: 06/24/02 09:30 Date Received: 06/26/02 Matrix: WATER

Dioxins/Furans, HRGC/HBHS Reviewed 2,3,7,B-TCDD ND 1.1 pg/L BPA-5 1613B l,2,3,7,B-PeCDD ND 2.1 pg/L BPA-5 1613B l,2,3,4,7,B-HxCDD ND 2.6 pg/L SPA-5 1613B 1,2,3,6,7,0-HxCDD ND 1.9 pg/i EPA-5 16138 1,2,3,7,B,9-HxCDD ND 1.8 pg/i I2PA-5 1613B 1,2,3,4.6,7,8-HpCDD ND 3.3 pg/i EPA-5 1613B OCDD ND 14 pg/i i3PA-5 1613B 2,3,7,B-TCDF ND 0.71 pg/L •SPA-5 1613B 1,2,3,7,B-PeCDF ND 2.5 pg/L aPA-5 1613B 2,3,4,7,0-PeCDF ND 2-1 pg/L F.PA-5 16] 3B 1,2,3,4,7,8-HxCDF ND 2.6 pg/L EPA-5 1613B 1,2,3.6,7,S-HxCDF ND 2.0 pg/b EPA-5 16139 2,3,4,6,7,8-HxCDF ND 2.4 pg/L EPA-5 1613B l,2,3,7,8,9-.gxCDF ND 2.8 pg/b EPA-5 1613B 1,2,3,4,6,7,8-HpCDF ND 2-4 pg/b EPA-S 1613B 1,2,3,4,7,8,9-HpCDF ND 2.5 pg/L EPA-5 1613B OCDF ND 4.4 pg/L EPA-5 1613B

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CITY_21MC100_003132875

NYC-WTC_000199948