SAN DIEGO -- State and federal officials signed an historic water sharing agreement Thursday at a ceremony at the Hoover Dam.

Interior Secretary Gale Norton signed the deal that ends years of bickering among California and six other states that rely on water from the Colorado River.

The agreement calls for the movement of as much as 90 billion gallons of water each year to San Diego for the next 75 years -- roughly one third of the city's future needs.

Meanwhile, the city of San Diego has reached an agreement with the Otay Water District to provide reclaimed water to the district for the next 20 years.

The deal calls for the district to build a six-mile long pipeline to connect to the South Bay water reclamation plant. It would supply up to 6 million gallons of reclaimed water per day.

The deal -- which must be approved by the City Council -- calls for the district to pay a one-time charge of $3.6 million in addition to $350 per acre foot for the water.