Tucson Water says its investments in technology to ensure water quality and long-term water reliability are paying off when it comes to treating contaminated groundwater at the Tucson International Airport Area Superfund Site. Under direction from the Mayor and Tucson City Council, Tucson Water built the Advanced Oxidation Process (AOP) Water Treatment Facility, which went into service in January 2014.
AOP technology combines ultraviolet light with hydrogen peroxide to remove the carcinogen 1,4-dioxane from the underground plume at the Tucson Airport Remediation Project (TARP) well field. The facility also removes Trichloroethylene (TCE), an industrial solvent used in aircraft manufacturing locations from the 1940s to the 1970s. This will allow the original treatment facility to be shut down once approved by the EPA.
Together, TARP and AOP treat nearly seven million gallons of water per day from drinking water that is delivered to approximately 60,000 customers.