On August 23, the National Ground Water Association (NGWA) named the Arizona Department of Environmental Quality (Arizona DEQ) a recipient of a 2022 Outstanding Groundwater Remediation Project Award. The honor recognizes Arizona DEQ for completing an expedited site characterization and remediation of PFAS in groundwater to protect the City of Tucson’s drinking water wellfield, referred to as the Central Tucson PFAS Project (CTPP).
Site characterization, remedy design, permitting, construction, and system startup for the CTPP were achieved within an aggressive timeframe of 18 months despite pandemic-related supply-chain challenges. The demonstration groundwater treatment facility using ion exchange treatment technology was completed in December 2021 with close cooperation from multiple stakeholders. The system, which already has treated more than 30 million gallons of contaminated groundwater, is limiting the movement of PFAS toward Tucson Water’s vital Central Wellfield, while also providing a mechanism to evaluate future PFAS remediation technologies.