Planning For The Future With Water Independence Now (WIN)

Water Independence Now (WIN)

The Water Independence Now (WIN) program is a series of projects that will fully utilize stormwater and recycled water sources to restore and protect the groundwater resources of the Central and West Coast Basins. In the past, a large percentage of replenishment water came from sources in Northern California and the Colorado River. WIN seeks to completely eliminate this dependence on imported water to ensure the future security of our region by developing local resources to create a locally sustainable groundwater supply.

WIN Projects & Programs

Leo J. Vander Lans Advanced Water Treatment (AWTF) Facility Expansion

The existing Leo J. Vander Lans Advanced Water Treatment Facility began recycled water deliveries to the Alamitos Gap Barrier in 2005. This facility utilizes disinfected tertiary treated effluent from the Long Beach Water Reclamation plant and further treats it to near distilled water quality using advanced microfiltration and reverse osmosis (MF/RO).

Currently, this facility meets 50% of the water demands at this barrier. The expansion will allow the facility to meet 100% of the imported water demands, thereby reducing the region's reliance on imported water by an additional 3,000 acre-feet per year.

Groundwater Reliability Improvement Program (GRIP)

WRD currently uses approximately 50,000 acre-feet per year of disinfected tertiary treated recycled water and 21,000 acre-feet of imported water for conservation in the Montebello Forebay Spreading Grounds. In addition to these two sources, WRD works closely with the Los Angeles County Department of Public Works to maximize the capture of available stormwater.

The Groundwater Reliability Improvement Program (GRIP) will replace most, if not all, of the imported water purchased for replenishment in the Montebello Forebay Spreading Grounds with recycled water, thus reducing the region's reliance on imported water.

Whittier Narrows Conservation Pool

The Whittier Narrows Conservation Pool allows for the storage of water behind the Whittier Narrows Dam expressly for conservation purposes. This water is then released from the dam at a rate equal to the infiltration rate of the Montebello Forebay Spreading Grounds to maximize conservation.

Operational enhancements will allow additional water to be stored in the conservation pool with minimal environmental and recreation impacts. The resulting additional 1,100 acre-feet per year of stormwater conserved will reduce the region's reliance on imported water by a like amount.

Spreading Grounds Interconnection Pipeline

The Spreading Grounds Interconnection Pipeline will greatly increase operational flexibility between the Rio Hondo and San Gabriel River Spreading Grounds. Existing operational constraints limit the opportunity to conserve approximately 1,300 acre-feet per year of stormwater.

The conservation of this 7,000 acre-feet per year of locally available water will reduced WRD's imported water demands in the Montebello Forebay. The Water Replenishment District and the Los Angeles County Department of Public Works are equal funding partners on this project.

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