Case Study: Pima County Doubles Plant Capacity and Boosts Operational Efficiency With AVEVA

Pima County Implements Situational Awareness Strategy to Improve Operational Efficiency of Wastewater Facilities

Pima County, Arizona, needed to modernize operations across its Regional Wastewater Reclamation Department to manage roughly 60 million gallons per day for a population of about one million, spread over thousands of miles of sewer infrastructure. The county faced challenges capturing institutional knowledge from an aging workforce, improving situational awareness so operators could respond immediately to alarms, and managing widely dispersed assets. To address this, Pima County partnered with AVEVA, deploying an AVEVA HMI/SCADA solution including AVEVA System Platform, AVEVA InTouch, AVEVA Historian and AVEVA IntelaTrac Mobile Operator Rounds.

AVEVA implemented a situational awareness–driven plant model and mobile workforce/decision‑support system that unified HMI, historical data and operator rounds. As a result, Pima County doubled Tres Rios plant capacity (a 50% increase in operational efficiency) while keeping the same staff, cut energy use by 10%, captured institutional knowledge for training, and used AVEVA Historian data mining to secure a $352,000 utility rebate and identify more than $200,000/year in electrical savings. AVEVA’s integrated solution and support thus delivered measurable operational and cost improvements.

Pima County

Rod Graupmann

SCADA Manager