Los Angeles Department of Water and Power (LADWP) is following the lead of Orange County in implementing both and Indirect Potable Reuse (IPR) system and an expansion of their "purple pipe" reclaimed water system. LADWP plans to produce up to 30,000 acre-feet of purified water per year, which equates to about 27 million gallons per day (MGD). This water would be injected into existing underground drinking water aquifers. The reclaimed water system, which produces water used for irrigation and industrial uses, would be expanded from 7,500 acre-feet per year (6.7 MGD) to 59,000 acre-feet per year (52.7 MGD).
This is a laudable move by LADWP towards the twin goals of developing a sustainable local water supply and reducing the discharge of (valuable!) wastewater into the ocean.