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Pesticide analysis results below detection limits for sample AD28309

Machine-extracted title · confidence 100%

Laboratory report indicating pesticide concentrations were below method detection limits for sample AD28309 collected in late 2001.

NYC-WTC_000056875–000056883

Folder label: “508 X 11/26/01 A 12/21 - 12/22/01

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

Signal #1 : C:\MSDCHEM\1\DATA\508\011221B\28309.D\ECDlA.CH Vial: 44 Signal #2 : C:\MSDCHEM\1\DATA\508\011221B\28309.D\ECD2B.CH Acq On : 22 Dec 2001 8:56 am Operator: Nefliu Sample : sample Inst : Instrumen Mise : Multiplr: 1.00 IntFile Signal #1: EVENTS.E IntFile Signal #2: events2.e Quant Time: Jan 09 11:29:46 2002 Quant Results File: 011214T.RES

Quant Method : C:\MSDCHEM\1\METHODS\011214T.M (Chemstation Integrator) Title : 508 Chlorinated Pesticides - Toxaphene Last Update : Mon Dec 17 14:19:26 2001 Response via : Initial Calibration DataAcq Meth : MDL508.M

Volume Inj. Signal #1 Phase Signal #2 Phase: Signal #1 Info Signal #2 Info :

Compound RT#1 RT#2 Resp#l Resp#2 Conc#l Cone#2

System Monitoring Compounds 6) S 2,4-DDD SURROGAT 14.35 14.98 625.3E6 469.3E6 0.171 0.161 Spiked Amount 0.200 Recovery = 85.50% 80.50%

Target Compounds 1) Toxaphene Peak 1 0.00 15.81 0 3953054 N.D. d 0.167 2) Toxaphene Peak 2 15.14 16.13 23900100 6427240 0.328 0.054 # 3) Toxaphene Peak 3 0.00 16.13 0 6427240 N.D. d 0.169 4) Toxaphene Peak 4 17.17 16.87 10084565 12353809 0.059 0.115 # 5) Toxaphene Peak 5 0.00 18.01 0 11440783 N.D. d 0.087

(f)=RT Delta > 1/2 Window (#)=Amounts differ by > 25% (m)=manual int. 28309.D 011214T.M Wed Jan 09 11:29:58 2002 Page 1

NYC-WTC_000056880

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NYC-WTC_000056880Source: NYC Law Department, mirrored locally

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