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Spiked sample analysis for Method 525.2, Jan 2002

Machine-extracted title · confidence 100%

Quality control spiked sample results for Method 525.2 verifying recovery rates for target chemical compounds.

NYC-WTC_000055397–000055402

Folder label: “525 X 11/21/01 A 12/11/01 + REANALYSIS 1/25/02

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File : C:\MSDCHEM\1\DATA\121001B\28105S.D Vial: 17 Acq On : 11 Dec 2001 11:42 am Operator: McLean Sample : sample spk Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: BENZO.P Quant Time: Dec 11 12:19:44 2001 Quant Results File: 120501.RES

Quant Method : C:\MSDCHEM\l\5973N\120501.M (RTE Integrator) Title : Quantitation For Method 525.2 Last Update : Thu Dec 06 10:31:04 2001 Response via : Initial Calibration DataAcq Meth : 120501

Internal Standards R.T. Qlon Response Cone Units Dev(Min)

1) Acenaphthene-diO 18.33 164 6546503 5.00 ug/L 0.02 9) Phenanthrene D-10 22.66 188 10751769 5.00 ug/L 0.02 20) Chrysene D-12 30.44 240 6299309 5.00 ug/L 0.02

System Monitoring Compounds 2) 1,3-Dimethyl-2-nitrobenzen 13.25 134 1367357 3.93 ug/L 0.03 Spiked Amount 5.000 Recovery = 78.60% 19) Triphenyl Phosphate surr 29.70 326 2030457 5.45 ug/L 0.00 Spiked Amount 5.000 Recovery = 109.00% 21) Perylene D-12 surr 34.46 264 4142619 4.68 ug/L 0.02 Spiked Amount 5.000 Recovery = 93.60%

Target Compounds Qvalue 3) Hexachlorocyclopentadiene 15.82 237 643483 G19ug/L 99 4) Hexachlorobenzene 21.52 284 1884996 3.85 ug/L 97 5) EPTC 16.29 128 3360066 4.88 ug/L 93 6) 2,6-Dinitrotoluene 17.94 165 1052349 4.19 ug/L 77 7) 2,4-Dinitotoluene 19.13 165 807863 (2.85 ug/L 96 8) Molinate 19.21 126 5200877 5.38 ug/L 96 10) Simazine 22.05 201 1158808 3.85 ug/L 99 11) Atrazine 22.17 200 2353827 5.34 ug/L 98 12) Alachlor 24.02 160 2187292 5.38 ug/L 89 13) Terbacil 22.98 161 3079486 <6.70 Xkcj/-L 94 14) Acetochlor 23.81 146 1551144 5.59 ug/L 99 15) Metribuzin 23.85 198 1454686 3.10-ug/L 99 16) Metolachlor 24.94 162 6985468 5.76 ug/L 99 17) Butachlor 26.77 160 2085834 4.68 ug/L 85 18) 4,4'-DDE 27.41 246 1803685 4.05 ug/L 98 22) Bis (2-Ethylhexyl) adipate 29.62 129 5168015 5.48 ug/L 98 23) Bis (2-Ethylhexyl) phthala 31.07 149 8633250 4.99 ug/L 100 24) Benzo (a) pyrene 34.30 252 5693176 4.45 ug/L 97

(#) = qualifier out of range (m) = manual integration 28105S.D 120501.M Thu Jan 10 12:10:31 2002 Page 1

NYC-WTC_000055399

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