Mich. Comp. Laws § 324.4301
A local unit of government in this state, either individually or jointly by agreement with another local unit of government, may own, acquire, construct, equip, operate, and maintain, either within or outside of the statutory or corporate limits of the local unit or units of government, intercepting sewers, other sanitary and storm sewers, pumping stations, and a plant or plants for the treatment, processing, purification, and disposal in a sanitary manner approved by the department, of the liquid and solid wastes, refuse, sewage and night soil, storm water, and garbage of the local unit or units of government. A local unit of government, either individually or jointly by agreement with another local unit of government, may own, acquire, construct, equip, operate, and maintain either within or outside of the statutory or corporate limits of the local unit or units of government waterworks systems approved by the department of public health, including such facilities as water mains, treatment works, source facilities, pumping stations, reservoirs, storage tanks, and other appurtenances for the purpose of obtaining, treating, and delivering pure and wholesome water in adequate quantity to the local unit or units of government. They may acquire by gift, grant, purchase, or condemnation necessary lands either within or outside of the statutory or corporate limits of the local unit or units of government. However, a township shall not condemn land outside its corporate limits. For the purpose of acquiring property for the uses described in this part, the local unit of government has all the rights, powers, and privileges granted to public corporations under Act No. 149 of the Public Acts of 1911, being sections 213.21 to 213.25 of the Michigan Compiled Laws. These powers are in addition to any powers granted to the local unit of government by statute or charter.
MCL 324.4301