From the Fort Collins Coloradoan:
The facility is one of 17 treatment plants nationwide to receive the award this year and among only 32 facilities ever to reach that level of achievement, city officials say. The Partnership for Safe Water is a voluntary program developed by the U.S. Environmental Protection Agency that encourages members to increase their water quality and safety standards and provide drinking water that surpasses federal requirements. The partnership is sponsored by American Water Works Association, or AWWA, Association of Metropolitan Water Agencies, Association of State Drinking Water Administrators, National Association of Water Companies and AWWA Research Foundation.
More water treatment coverage here.