EPA Arsenic Treatment Demonstration - Rimrock, Arizona


Courtesy of Adedge Water Technologies, LLC

In mid 2003, AdEdge was selected to implement 3 full scale Arsenic Treatment Demonstration Projects with EPA using its granular ferric oxide technology. At the Rimrock location, implementation began in September, 2003 including
engineering submittals and permitting by the Arizona Department of Environmental Quality (ADEQ). Upon completing site preparations and construction in early March, AdEdge Technologies installed the new 100 gpm Adsorption Package Unit (APU) arsenic treatment system at the Montezuma Haven well site. This system was AdEdge’s second installation for a public drinking water system in the State utilizing the granular ferric oxide technology. Historically, arsenic levels reported in the source wells serving the community ranged from 50-55 parts per billion (ppb), over 5 times the new EPA standard of 10 ppb. A complete water profile was obtained on the source water to assess the water chemistry and predict performance. The Table lists some of the more important water quality parameters.

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