WASHINGTON (AP) -- Science advisors to the federal government will delve into California's water woes by reviewing actions needed to sustain the Sacramento-San Joaquin Delta.

They will also look at ways to maintain a reliable water supply for the 25 million Californians and farmers in the Central Valley that rely on the delta.

The National Research Council is undertaking the review at the request of lawmakers as well as the Obama administration.

The council will issue two reports over the next two years. In the first, the council will study whether there are any "reasonable and prudent alternatives" to a biological opinion that has reduced water delivery to many communities and farmers in the Central Valley.

A second report will focus on the management and restoration of the Delta.

Copyright 2009 The AP.

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