NYC-WTC_000208681

NYC 9/11 Public Portal Document

SEVERN TRENT LABORATORIES. INC. PREU WKsfAKY 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 fr: G2C270215 New YorX Date Reported: 3/31/02 Project Nurnber; U7 67 REPORTING ANALYTICAL parameter RESULT LIMIT UNITS METHOD

Client Sample ID; 0767-339970 Sample #: 001 Date Sampled: 03/25/02 09:30 Date Received: 03/27/02 Matrix; WATER

Dioxins/Furans, HRSC/HRMS Reviewed 2,3,7,3-TCDD ND 4.3 pg/L EPA-5 1613B 1,2,3,7,B-PeCDD ND 12 pg/L EPA-S 1613B 1,2,3,4,7,8-HxCDD ND 15 pg/L EPA-5 1613a 1,2,3.6,7,8-axCDD 39 J pg/L fiPA-S 1613B 1,2,3,7,8,9-HxCDD ND 24 pg/L BPA-5 1613B lr2,3,4,6,7,8*-BpCDD 360 pg/L EPA-5 1613b OCDD 1600 pg/L EPA-5 1613B 2,3,7,8-TCDF 32 CON pg/L EPA-5 L613B 1,2,3,7,8-PeCDP 40 J pg/L EPM-5 1613B 2,3,4,7,B-PeCDF 72 pg/L EPA-5 1613b 1,2,3,4,7,8-HxCDF 97 pg/L BPA-5 1613B 1,2,3,6,7,8~HXCDF 75 pg/L EPA-5 1613B 2,3,4,6,7,B-H»CDF 120 pg/L EPA-5 1613B 1,2,3,7,8,9-HxCDf ND 5.2 pg/L EPA-5 1613B l,2,3,4,6,7,e-HpCDP 600 pg/L EPA-5 16135 1,2,3,4,7,8,9-a^CDF 46 J pg/L EPA-5 1613B OCDF 330 pg/L EPA-5 1613B

J Ssimatcd result RcsuH Is less Ihan (be reporting II™l CON Confirmation analysis.

Client Sandia ID: 0767-339971 Sample #; 002 Date Saapled: 03/25/02 09:00 Date Received; 03/27/02 Matrix: WATER

Dioxins/Pursns, HRGC/HRMS Reviewed 2,3,7,8-TCDD ND 2.4 EPA-5 16138 1,2,3,7,8-PeCDD ND 6.2 pg/L EPA-5 16138 X,2,3,4,7,8-HxCDD ND 6.0 pg/r.. EPA-5 1613B 1,2,3,6,7,6-HxGDD ND 5.9 pg/L EPA-5 1613B 1,2,3,7,a,9-HzCDD ND 5.6 pg/t' EPA-5 1613B 1,2,3,4,6,7,0-HpCDD ND 4.1 pg/L EPA-5 16130 ocdD ND 6.1 pg/L EPA-5 1613B 2,3,7,8-TCDF ND 2.0 pg/L EPA-5 1613B l,2,3,7,e-PeCDF ND 2,9 pg/L SPA-3 1613B 2,3,4,7,a-PeCDF ND 3.4 pg/L EPA-5 1613B 1,2,3,4,7,8-HxCDF ND 4.2 pg/L EPA-5 1613B

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NYC-WTC_OOO2O8681 CITY_21MC100_007210588