This sewage treatment plant is of of 4 in a large North American City. The plant provides treatment of sewage collected from residents and businesses serviced by the plant. It was built in 1960 and the original engines were recently replaced with modern, high efficiency ones. The engines utilize the gas from the sewage to produce electrical power that can be used in the sewage plant. The new engines are fully automated and are monitored remotely. Without an operator present to possible detected a mechanical problem, it was important to ensure that should a problem occur, for example a bearing or piston failure, it would be immediately detected and corrective action could take place.

Metal Debris Detectors were installed to immediately identify the presence of metal particles in the engines lubricating oil.