The City of Grinnell Water Department uses Westrum Leak Detection services on an annual basis to discover and pinpoint any leaks in the distribution system as well as private water services. In many cases, water leaking from city mains or private services does not surface.
Through the process of leak correlation the company, using sophisticated computer and audio equipment, is able to listen on fire hydrants, system valves, and private service curb stop valves to determine precisely within a few feet of where a leak is. Not only does this minimize digging expenses, by the accuracy of the locating of the leak, it also lowers the city's yearly water pumping total by repairing the leaks in a timely manner. This service covers the entire city's distribution system every year.