Decatur officials are tightening up restrictions on water use as Lake Decatur continues to drop.

Officials on Monday announced that water can't be used to water lawns, fill swimming pools or wash vehicles. Gardens used to grow food can be watered but only within strict limits. The local bulk water-sales station will also be closed.

Those restrictions follow rules put in place last month that included requiring restaurants to provide water only on request. Residents had been allowed to water lawns on certain days and use car washes.

City officials say the drought affecting much of the country has led the water level in Lake Decatur to drop. The city and major local industrial users such as Archer Daniels Midland Inc. rely on the lake as their primary water source.