Improving Infrastructure Stability by Consistently Assessing Asset Condition, Consequence of Failure, and Risk

Toho Water Authority (TWA) provides water, wastewater and reclaimed water service to approximately 85,000 customers in Kissimmee Florida. For the past three years the Utility has been implementing an asset management program for their over 700 million dollars worth of water, wastewater, and reclaimed water assets. During this program TWA has made significant investments in asset management information systems including INFOR EAM Computer Maintenance Management System (CMMS) and an ESRI Geographic Information System (GIS) database. These two systems now contain the comprehensive asset inventory for the utility. A built-in interface between the programs allows the CMMS and GIS to integrate and share information.Once the software implementation and inventory was complete, TWA wanted to obtain additional physical, financial, and asset management attributes for their assets to support the overall asset management program, which includes evaluating asset risk, measuring utility performance and effectively planning for future renewal and replacement needs. The CMMS software was configured to store the attribute data in January of 2008 after conducting interactive workshops with staff to define the attributes. In August of 2008 a pilot project was implemented to define the process to consistently collect and calculate the asset data including condition, consequence of failure, risk, and replacement cost for all vertical assets in the utility. The pilot area contained one water plant, one wastewater plant and 47 lift stations that fed the wastewater plant. This paper will describe the methodology that was established to obtain and calculate the data, the results of the data analysis, and uses for the data to further their asset management program and overall decision making.