AWWA.Org
♦ Hexavalent Chromium in the Drinking Water Primer (PDF.):
http://www.awwa.org/Portals/0/files/legreg/documents/UpdatedChromiumInDrinkingWaterSummaryFinal.pdf
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AWWA.Org
♦ Hexavalent Chromium in the Drinking Water Primer (PDF.):
http://www.awwa.org/Portals/0/files/legreg/documents/UpdatedChromiumInDrinkingWaterSummaryFinal.pdf