DEP sample preparation log fragment, Jan-Feb 2002

NYC 9/11 Public Portal Document

Method mo Date Extracted _/u/22 Page 0 )

J oF Lab # Description Sample Drip rate Surr is Final T.V. pH Count * vol/wt ml/min add add add Vol. pos. LB, SD0ml I U IL 2A 17 Ref 05L __ 3A 0042 OA 00344 0064) __ 16 000 6 - 3 4A 00472 re-ex— 500m Iv.L i mL C 8 Y

6*1 # $GAs- 17096

Say le the - THprop & e-lesi C (e h Tr r o gto tss €2 —TE YO 0922 =nifDezl OtO ee—k bu O dlog lio W SReExHo LCS $1a .S. Remarks When shain S& b E/c‘e C0 848* * e sT Pe ecL ocZ: e 7 pre>^4 rC) d t aQL— Po5 L m mleakasS/Os L .//? wJC] /7h 2 : final clroh I rar 7h me7Py lene ‘ a. ie y' ° 000ml So ver j any crp r Se hr)t 7/As 7:SK/77ala- L/e los—. —LAtEg — elol-- /

drip rate must be between 5-15ml/min for liq-liq extractors drip rate - Extraction type -seP fb Solv.lot# V33f06 NaCllot# V0599 Na2SO4 lot# /39H00 STANDARD INT STD LOG# J) CALIBRATION REF/SPIKE 1/752 7 a MDL/MDRF Q. CHECK INT. STD. 7 2 00gav 9 SURROGATE 0l002 LPC ENDRI N/DDT

Analyst Reviewed by v \ Ai DateA) revision 4/12/01 Verified by

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NYC-WTC_000052223