MADISON, Wis. -- A multistate treaty to limit the use of Great Lakes water goes into effect Monday.

The Great Lakes Compact generally bars large-scale, long-distance withdrawals from the lakes. But it includes exceptions for communities near the lakes.

The compact also directs the Great Lake states to develop water conservation programs.

The deal was negotiated by the governors and ratified by legislatures in all eight states, including Illinois.

The other states are New York, Pennsylvania, Ohio, Michigan, Indiana, Wisconsin and Minnesota. Congress also gave its approval. The Canadian provinces of Ontario and Quebec adopted similar policies.