Quality control check results, sample AE11755, May 2002

NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed)

Data File : C:\MSDCHEM\l\DATA\051302\C5A0513.D Vial: 6 • Acq On : 13 May 2002 4:15 pm Operator: Bohlk / Inst 213 Sample : CAL 5.0 UG/L Inst : Instrumen Mise Multipir: 1.00 MS Integration Params: rteint.p Quant Time: May 14 09:56:42 2002 Quant Results File: 050802.RES

Quant Method : C:\MSDCHEM\l\5973N\050802.M (RTE Integrator) Title : Quantitation For Method 525.2 Last Update : Tue May 14 09:56:07 2002 Response via : Initial Calibration DataAcq Meth : 050802

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

1) Acenaphthene-diO 18.21 164 1279499 5.00 ug/L 0.00 9) Phenanthrene d-10 22.53 188 1917455 5.00 ug/L 0.00 19) Chrysene d-12 30.32 240 1126681 5.00 ug/L 0.00 25) p-Terphenyl d-14 27.42 244 1146501 5.00 ug/L 0.00

System Monitoring Compounds 2) 1,3-Dimethyl-2-nitrobenzen 13.13 134 378412 4.97 ug/L 0.00 Spiked Amount 5.000 Recovery = 99.40% 20) Triphenyl Phosphate 29.60 326 278614 5.01 ug/L 0.00 Spiked Amount 5.000 Recovery = 100.20% 21) Perylene D-12 34.33 264 719964 4.47 ug/L 0.00 Spiked Amount 5.000 Recovery = 89.40% 26) Acenaphthene d-10 (surr) 18.21 164 1279499 4.47 ug/L 0.00 Spiked Amount 5.000 Recovery = 89.40% 27) Phenanthrene d-10 (surr) 22.53 188 1917455 4.68 ug/L 0.00 Spiked Amount 5.000 Recovery = 93.60% 28) Chrysene d-12 (surr) 30.32 240 1126681 4.32 ug/L 0.00 Spiked Amount 5.000 Recovery = 86.40%

Target Compounds Qvalue 3) Hexachlorocyclopentadiene 15.71 237 199819 4.77 ug/L 98 4) Hexachlorobenzene 21.40 284 387409 5.26 ug/L 97 5) EPTC 16.18 128 629709 5.12 ug/L 95 6) 2,6-Dinitrotoluene 17.78 165 277100 4.58 ug/L 89 7) 2,4-Dinitotoluene 18.92 165 357082 4.77 ug/L 93 8) Molinate 19.09 126 917477 5.17 ug/L 96 10) Simazine 21.94 201 272824 5.14 ug/L 97 11) Atrazine 22.06 200 400382 5.08 ug/L 98 12) Alachlor 23.92 160 394466 5.05 ug/L 90 13) Terbacil 22.89 117 182148 4.54 ug/L 96 14) Acetochlor 23.71 146 287483 4.89 ug/L 93 15) Metribuzin 23.75 198 413949 4.79 ug/L 99 16) Metolachlor 24.84 162 1206676 5.07 ug/L 94 17) Butachlor 26.67 160 322735 4.66 ug/L 98 18) 4,4'-DDE 27.31 246 355680 5.09 ug/L 93 22) Bis (2-Ethylhexyl) adipate 29.54 129 728941 4.13 ug/L 96 23) Bis (2-Ethylhexyl) phthala 30.99 149 1146877 4.72 ug/L 99 24) Benzo (a) pyrene 34.19 252 872763 4.07 ug/L 94

(#) = qualifier out of range (m) = manual integration C5A0513.D 050802.M Tue May 14 09:56:58 2002 Page 1

NYC-WTC_000015979