Continuous Corrosion Monitoring in Pump Stations Using Wireless Sensors

Corrosion protection in the water and wastewater industry often prioritizes water mains, while sewage pump stations receive less attention. However, ensuring adequate cathodic protection (CP) for carbon steel dry wells is essential for long-term infrastructure reliability. To address this, several sanitary engineering departments have implemented impressed current CP (ICCP) systems across their pump stations to enhance asset protection.

This paper highlights how proactive infrastructure management extends beyond initial contractor verification reports by deploying wireless sensors to continuously monitor structure-to-soil potential data in real time. While contractor reports confirm system installation, they do not guarantee ongoing protection once the system is operational. Wireless monitoring allows for immediate detection of potential corrosion risks and enables timely corrective actions.

The sensors' WebView feature enhances data analysis and visualization, helping utilities identify and address periods of inadequate CP coverage. This proactive strategy ensures the longevity and integrity of pump stations, reducing the risk of failures and extending asset life