The district is still in the very early planning process for potable reuse and does not know yet the full costs. It is important to keep in mind that an expansion project like this will include expansion of the purification facility from 8 MGD to 32 MGD, building new pipelines to transport the water to groundwater basins, and associated infrastructure. Overall, the current cost estimate for this program, which includes the five different construction projects, is estimated to cost $1 billion.