Upper District has prepared an Integrated Resources Plan (IRP) to address many of the water supply issues in the San Gabriel Valley that are described throughout our website and published documents.
The IRP examines both demand‐side and supply‐side options, views water more holistically and interconnected, addresses multiple goals, and incorporates risk and uncertainty. The IRP is a long‐term road map that provides Upper District with a framework for making sound decisions. The IRP is not intended to be a static report, but more a “living” document that will be updated as future conditions unfold and become clearer.
More specifically, Upper District’s IRP explored various water supply options in terms of potential supply yield, costs, technology, water quality, and reliability. These options were bundled into several integrated alternatives (combinations of options much an investment portfolio) that were evaluated against a set of goals and objectives for the District in order to develop a preferred strategy for meeting current and projected water demands in a reliable, cost‐effective and environmentally sound manner. Key to the success of this IRP is an adaptive management approach, whereby water supply projects can be phased-in over time, when needed, to adapt to changing future conditions.