Tucson Water’s 2018 Annual Water Quality Reports for its main system and its nine isolated systems are available online. The reports provide information on drinking water for its 731,000 customers within the utility’s 37 water service areas in and around the Tucson metropolitan area. Tucson Water performs more than 14,500 water quality tests per year, and results from monitoring conducted in 2018 met all standards for safe drinking water.
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