An agreement settling a century of disputes over the use of water in the Truckee River, which flows through California and Nevada, is expected to be signed this week.
U.S. Sen. Harry Reid of Nevada called the Truckee River Operating Agreement one of the most important deals he's ever negotiated. The agreement is scheduled to be signed Saturday in Sparks, and Reid added he would attend the ceremony.
The agreement provides storage for drought-year water supplies in Sierra Nevada reservoirs " including Boca, Prosser and Stampede " for years to come for the Reno and Sparks area.
The allocation of river water, much of which also flows from Lake Tahoe, has been fought over by irrigation district, the Pyramid Paiute Tribe and state and federal officials for decades. The Truckee River begins at Lake Tahoe, flows through Truckee and Reno, and ends at Pyramid Lake.
Officials say that storage will help meet demand in drought years when Truckee Meadows Water Authority is providing up to 119,000 acre-feet of water a year to customers.
The plan already is in place and working under an interim agreement approved several years ago.
The Associated Press contributed to this report.