Reducing Water Loss With Continuous Monitoring Sensors

Rogers Water Utilities (RWU), serving 77,000 customers in northwest Arkansas, faced significant water loss due to aging infrastructure. Traditional leak detection methods were insufficient, particularly in challenging terrains like rolling hills and natural springs. In 2019, RWU took an innovative approach by installing Itron’s continuous monitoring acoustical leak sensors, significantly improving their water loss program. Initially piloted, the system was expanded to 650 sensors spread across the service territory. These sensors, integrated with RWU’s automated meter reading system, detected leaks based on acoustic signals during low-noise nighttime hours.

The results were striking: RWU reduced non-revenue water loss from 18% to just 5%, saving approximately 150 million gallons of water and $200,000 annually. Within two months, RWU identified and repaired major leaks, including one that had been releasing 50 million gallons over several years. The continuous monitoring provided holistic network visibility, enabling proactive maintenance and preventing potential water pressure issues. With plans to expand the system by 2026, RWU expects to cover its entire growing network, achieving long-term operational efficiency and enhanced customer service.