acquired by IRWD. Projects under development still require the preparation and completion of environmental documents as well as any applicable regulatory approvals, prior to full construction and implementation. As outlined in IRWD’s WRMP, prudent water supply and financial planning dictates that development of supplies be phased in over time consistent with the growth in demand. IRWD estimates that new groundwater production facilities would be online by 2030. In addition, recycled water supplies from the MWRP are expected to expand over the next five years based on service area growth. In 2021, IRWD completed a Sewage Treatment Master Plan with the goal of optimizing sewage conveyance and treatment of IRWD’s ultimate sewage flows. The Sewage Treatment Master Plan includes an evaluation of MWRP (located in Irvine) and LAWRP (located in Lake Forest). The Plan identified projects relating to the conveyance, treatment and distribution of sewage and recycled water within IRWD’s service area. Based on the Sewage Treatment Master Plan, IRWD has several potential projects that could improve the management of sewage and provide future beneficial uses of recycled water. Projects related to improved treatment operations at IRWD’s MWRP and LAWRP are scheduled to be online in 2035. DWR Table 6-7 below shows IRWD’s expected future projects and the anticipated increases in water supply. These water supplies are expected to be available under all normal, single-dry and multiple-dry year scenarios.
Table 6 - 7. DWR Submittal Table Expected Future Water Supply Projects or Programs
6 - 20
IRWD – 2025 Urban Water Management Plan
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