Federal officials will say how much water some California farmers can expect to receive this year in one of the nation’s most productive agricultural regions.

The U.S. Bureau of Reclamation’s announcement on Friday affects San Joaquin Valley farmers, spanning California’s interior from Stockton to Bakersfield. It is home to about one-third of California’s farmland. Because of drought, many of the farms in the last two years received no water from a vast system of reservoirs and canals.