Folsom Lake is currently at half-capacity, or about 40 feet below normal.
The Bureau of Reclamation is moving up the pullout date from July 13 to July 2. They want boats currently stored in slips taken out and stored on land.
"We're dealing with a dry year, and in a dry year, operationally, we still have obligations downstream," Louis Moore from the bureau said.
Boater Glen Wilson recently removed his sailboat from Brown's Ravine Marina because of the order.
"We've had a poor water year, we've had no rainfall. And the lake's dropping because farmers need water, so it's just reality. I don't like it but what can we do about it?" said Wilson.
A boater said he's disappointed because he paid $1,150 for slip parking and won't be able to get his money back.