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From the Print
 Jon Van Dommelen of the Ohio EPA giving a demonstration at the Yellow Springs wastewater plant on how to troubleshoot nitrification and denitrification with online nitrate and ammonium sensors. (photo by Diane Chiddister)

Jon Van Dommelen of the Ohio EPA giving a demonstration at the Yellow Springs wastewater plant on how to troubleshoot nitrification and denitrification with online nitrate and ammonium sensors. (photo by Diane Chiddister)

Water draw

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About 70 southwestern Ohio water and wastewater treatment plant personnel, along with representatives from the Ohio EPA, attended the fall meeting of the Ohio Water Environment Association last Thursday, co-sponsored by YSI/Xylem and the Yellow Springs wastewater plant.

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Water draw

by Diane Chiddister