Mich. Comp. Laws § 324.95202: Financing sewage treatment works projects, storm water projects, and nonpoint source projects; bonds.

Sec. 2.

The state shall borrow a sum not to exceed $1,000,000,000.00 and issue the general obligation bonds of the state, pledging the full faith and credit of the state for the payment of principal and interest on the bonds, to finance sewage treatment works projects, storm water projects, and nonpoint source projects, that improve the quality of the waters of the state.