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Should I use two sample bags when collecting samples for E. coli testing?

April 26, 2017bags coli sample samples Testing

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Should I use two sample bags when collecting samples for E. coli testing?

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A. The River Watch protocol utilizes a testing design called single grab, which requires that you only use one whirlpak bag for each monitoring event. Taking two samples from one bag provides the replication necessary for accuracy and offers a long-term assessment of bacteria at each site.