Indiana Code Title 36. Local Government § 36-9-25-9

Sec. 9. The board shall manage and control all sewage works of the district.  The board has concurrent power with the works board of the municipality to construct, reconstruct, maintain, repair, and regulate the use of all connecting and intercepting sewers.  The board shall collect and remove garbage, ashes, and other waste materials to prevent the pollution of watercourses within the district and to protect the public health.  The board may purchase, acquire, construct, reconstruct, operate, repair, and maintain all sewage works.