09/04 In early 2004, AdEdge was pre-qualified and invited to participate in arsenic pilot study of comme rcial adsorption- based treatment technologies with Damon S. Williams & Associates (DSWA). As an outcome of the successful piloting and preliminary work with the engin eer, AdEdge was cho sen by Centennial Contractors to perfo rm fu ll scale a rsenic treatment using its granular ferric oxide adsorption technology at th e

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