The Wolf Creek treatment facility in the City of Foley, Alabama, was upgraded to provide residents with improved water quality and exceptional nutrient removal. The Riviera Utilities facility serves approximately 6,000 residential and commercial customers in the vicinity. Wastewater is collected through a network of over 100 miles of gravity mains, 40 lift stations and 30 miles of force mains. It flows into the WWTP, and the treated effluent is then discharged into the Wolf Creek watercourse. The WWTP featured outdated technology that required upgrading, to meet current water industry legislation and to prepare for the future. Its challenges also included limited space for upgrades, due to the plant’s urban location. The upgrade was an ideal opportunity to implement a robust, proven technology capable of handling the plant’s disruptions and salinity, as well as offering cost-efficiencies and easy operation on the site.