1. Reduces California`s over-reliance on the Colorado River – QSA allows California to reduce its historic over-dependence on the Colorado River to its base annual distribution of 4.4 million feet per acre through rural water transfers and other water supply programs. One of the main sources of supply provided to San Diego under the QSA is the Water Authority-Imperial Irrigation District Water District, which will provide up to 200,000 hectares of water in the region by 2020. The first large-scale water transfers between Southern California authorities began in 1988, when the Imperial Irrigation District agreed to deliver 103,000 AFYs of water to the Metropolitan Water District in Southern California. Under the agreement, the amount of MWD must be equal to the amount remaining on farmland through an IDD in the form of a reduction in water consumption. The sea, which spans Imperial and Riverside counties, provides important habitat for migratory fish and birds and attracts about 400 different bird species. But it has been in a long decline due to the construction of salt and the reduction of the water supply. The decrease in the shoreline and exposed seabeds have also led to air quality problems due to toxic dust. In addition, the Colorado Water Education Foundation, an education and continuing education organization, wrote a positive report on the agreement. In an article, Jim Lochhead says, “By forcing California to live to the extent it can, QSA is giving certainty that our ability to develop water in the Colorado River Basin is safe for now.”  CFWE is based in Denver and has a different perspective on QSA due to the importance of the Colorado River outside of California. There has been a major debate about the human impact on California`s water supply, with criticism of rampant population growth, particularly in Southern California.
The agreement has been associated with a large number of litigations, and many parties and organizations have filed motions in California courts. On December 8, 2011, the California Court of Appeal for the Third District ruled in favor of the major public and federal water authorities and found that the quantification agreement was not contrary to california`s constitution. Opponents also argued that the agreement was contrary to the state`s clean air law, but that claim was also rejected.  In July 2013, the Sacramento Superior Court issued a final ruling in which it upheld the agreement and dismissed all current challenges, but the San Diego Water Authority still expects a new appeal.  In order to reduce its dependence on the river, California has agreed to transfer 200,000 feet of water per year from the water-rich Imperial Valley to the San Diego Sea for up to 75 years.