LADWP is one of the largest municipal utilities in the US, serving water and power to over 4 million customers. The Water System hopes to address water resources, water quality, operations, infrastructure and regulatory requirements by transforming itself into a state-of-the-art intelligent water system. Water Information Network (WIN) project is a holistic approach using the OSIsoft PI System as one of the central data hubs. Our team started with ground level efforts to build pilot applications to solve some immediate problems and demonstrate data integration capabilities. From top down, we started Water System wide workshops with management and subject matter experts that identified major data systems to be integrated and over 80 use cases. The results form the basis for an agile development and growth plan that will pave the road for utility technology development for the next decade to come.