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<strong>QATS</strong> <strong>SPECIAL</strong>-<strong>REQUEST</strong> & <strong>SITE</strong>-<strong>SPECIFIC</strong> <strong>PESs</strong><br />
REGION IX SAN GABRIEL <strong>SITE</strong><br />
Region IX San Gabriel site – low concentration full-volume <strong>PESs</strong><br />
prepared to validate non-standard methods.<br />
Laboratory reported results consistent with nominal concentrations of<br />
<strong>PESs</strong> prepared at <strong>QATS</strong> Lab – 5 different <strong>PESs</strong> and 4 different labs.<br />
PES Analyte<br />
1,2,3-Trichloropropane<br />
1,4-Dioxane<br />
Hexavalent Chromium<br />
NDMA<br />
Perchlorate<br />
Spike Conc.<br />
0.05 ppb<br />
1.5 ppb<br />
0.30 ppb<br />
0.20 ppb<br />
3.0 ppb<br />
Laboratory Result<br />
0.06 ppb<br />
1.7 ppb<br />
0.34 ppb<br />
0.22 ppb<br />
3.4 ppb<br />
19th Annual NARPM Training Conference June 2-5, 2009 Atlanta, Georgia 19
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