Quantification Settlement Agreement


The Quantification Settlement Agreement for the Colorado River was completed in October 2003. This historic agreement provides California the means to implement water transfers and supply programs that will allow California to live within the state's 4.4 million acre-foot basic annual apportionment of Colorado River water.


9th U.S. Circuit Court of Appeals Ruling – May 19, 2014

QSA Judgments - July 31, 2013

QSA Ruling - June 4, 2013

The QSA is a major achievement for enhancing San Diego County's long-term water supply reliability. Supplies related to the accord now account for nearly 30 percent of our region's water and they will continue to grow in the year's ahead.

The QSA also commits the state to a restoration path for the environmentally sensitive Salton Sea and provides full mitigation for these water supply programs.


The Parties

Statewide Benefits

1. Reduces California's over-dependence on Colorado River — the QSA enables California to reduce its historic over-dependence on the Colorado River to its 4.4 million acre-foot basic annual apportionment through voluntary agriculture-to-urban water transfers and other water supply programs.

2. Salton Sea Restoration — As part of the QSA legislation enacted in October 2003, the state of California is obligated to undertake the restoration of the Salton Sea ecosystem. Click here for more information on the Salton Sea.

3. Voluntary agricultural transfers provide more than 30 million acre-feet for urban use — Over the life of the QSA programs, more than 30 million acre-feet moves from primarily agricultural use to primarily urban use.

Imperial Valley Outreach Office
Click here to contact the Water Authority's Imperial Valley Outreach Office

QSA Documents in PDF

icon_pdf.pngQSA Fact Sheet

icon_pdf.pngQuantification Settlement Agreement October 10, 2003

Agreements to which the San Diego County Water Authority are signatories include: