Duplicate spike analysis for Method 525.2, Jan 2002

NYC 9/11 Public Portal Document Quantitation Report (QT Reviewed)

Data File : C:\MSDCHEM\1\DATA\121001B\28105SD.D Vial: 18 Acq On : 11 Dec 2001 12:27 pm Operator: McLean Sample : sample spk dupe Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: BENZO.P Quant Time: Dec 11 13:04:47 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-dlO 18.33 164 7091460 5.00 ug/L 0.02 9) Phenanthrene D-10 22.66 188 10443267 5.00 ug/L 0.02 20) Chrysene D-12 30.44 240 6131030 5.00 ug/L 0.02

System Monitoring Compounds 2) 1,3-Dimethyl-2-nitrobenzen 13.25 134 1476749 3.92 ug/L 0.03 Spiked Amount 5.000 Recovery = 78.40% 19) Triphenyl Phosphate surr 29.70 326 2025220 5.59 ug/L 0.00 Spiked Amount 5.000 Recovery = 111.80% 21) Perylene D-12 surr 34.46 264 4315542 5.01 ug/L 0.02 Spiked Amount 5.000 Recovery = 100.20%

Target Compounds Qvalue 3) Hexachlorocyclopentadiene 15.82 237 587306 2.69 ug/L 99 4) Hexachlorobenzene 21.52 284 1864406 3.51 ug/L 96 5) EPTC 16.29 128 3479192 4.67 ug/L 99 6) 2,6-Dinitrotoluene 17.91 165 975058 3.63 ug/L 99 7) 2,4-Dinitotoluene 19.12 165 762546 2.54 ug/L 98 8) Molinate 19.21 126 5313127 5.07 ug/L 96 10) Simazine 22.05 201 1119004 3.83 ug/L 99 11) Atrazine 22.17 200 2250499 5.26 ug/L 99 12) Alachlor 24.02 160 2212985 5.60 ug/L 89 13) Terbacil 22.98 161 2862728 6.41 ug/L 99 14) Acetochlor 23.81 146 1562664 5.80 ug/L 100 15) Metribuzin 23.85 198 1441066 3.16 ug/L 96 16) Metolachlor 24.94 162 6998548 5.94 ug/L 99 17) Butachlor 26.77 160 2134137 4.93 ug/L 87 18) 4,4'-DDE 27.41 246 1746689 4.04 ug/L 91 22) Bis (2-Ethylhexyl) adipate 29.62 129 5243718 5.70 ug/L 99 23) Bis (2-Ethylhexyl) phthala 31.07 149 8876212 5.24 ug/L 98 24) Benzo (a) pyrene 34.30 252 5332361 4.29 ug/L 98

(#) = qualifier out of range (m) = manual integration 28105SD.D 120501.M Thu Jan 10 12:10:48 2002 Page 1

NYC-WTC_000055405