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Document / 36 pages

Potassium sample log, WTC site, Nov 18 2001

Machine-extracted title · confidence 90%

Log entry for potassium sample processing activities at the World Trade Center site on November 18, 2001.

NYC-WTC_000065920–000065955

Folder label: “K 11/18/01

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Scanned page image, NYC-WTC_000065931
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NYC 9/11 Public Portal Document « 1

Element: K Seq. No.: 32 AS Loc.: Date: 11/18/2001 Sanple ID: QCS

Repl San^leConc StndConc BlnkCorr Time # Mg/i* M9/I> Signal 1 504.9 504.9 0.103 12:05:39 2 495.6 495.6 0.101 12:05:46 3 490.9 490.9 0.100 12:05:53 4 502.4 502.4 0.102 12:06:00 Mean: 498.4 498.4 0.102 SD : 6.400 6.400 0.001 %RSD: 1.28 1.28 1.29

sbbbssbsbsbbbbbbbsbbbbsbbbsbbbsbbb : :aSSSSSO8SSSSSSSSBSS = SS:SS = SSBBBBSSSS=:SB8aSSSZ5SS = S588SB&;SSSSS = S

Element: K Seq. No.; 33 AS Loc.: Date: 11/18/2001 Sample ID: Bilk

Repl SatnpleConc StndConc BlnkCorr Time # /tg/L /tg/L Signal 1 -31.51 -31.51 -0.007 12:06:20 2 -31.55 -31.55 -0.007 12:06:27 3 -30.59 -30.59 -0.007 12:06:34 4 -32.47 -32.47 -0.008 12:06:42 Mean: -31.53 -31.53 -0.007 SD : 0.7657 0.7657 0.000 %RSD: 2.43 2.43 2.15

SSSSBBSBSBBBSS: :=:SSBBBSSSSBBBBBSSBBBSSBBSBBSBBBBBBBBBSBBSSBBBBBBSBBBBBBBBSBBBBBS8BSBBB:

Element; K Seq. No.: 34 AS Loc.: Date: 11/18/2001 Sample ID; 27461

Repl San^leConc StndConc BlnkCorr Time # Mg/L Mg/L Signal 1 1913 1913 0.392 12:07:04 2 1918 1918 0.393 12:07:11 3 1933 1933 0.396 12:07:18 4 1929 1929 0.395 12:07:25 Mean: 1923 1923 0.394 SD : 9.469 9.469 0.002 %RSD: 0.49 0.49 0.49

Element; K Seq. No.: 35 AS Loc.: Date: 11/18/2001 San^le ID: 27462

Repl SampleConc StndConc BlnkCorr Time # pg/L Mg/L Signal 1 543 .4 543.4 0.111 12:07:46 2 536.6 536.6 0.109 12:07:53 3 539.8 539.8 0.110 12:08:00 4 538.2 538.2 0.110 12:08:07 Mean.: 539.5 539.5 0.110 SD : 2.946 2.946 0.001 %RSD: 0.55 0.55 0.55

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NYC-WTC_000065931

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NYC-WTC_000065931Source: NYC Law Department, mirrored locally

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