Macon's Water Treatment Plant at 1201 Noll Drive was built in 1966 and has had numerous changes through the years to meet the demand of our growing community. We switched our water source from Macon Lake to water pumped from Long Branch Lake into Macon lake in the 1980s. Then we went to pumping directly into the plant from Long Branch Lake in the mid 1990s; making Long branch our sole source for water.

We have a conventional surface water treatment system with flocculation followed by settling then filtration through mixed media filters consisting of 8 inches of support gravel, 12 inches of silica sand, and 24 inches of Granular Activated Carbon (GAC). The GAC caps were installed to help meet the organic removal requirements of the Missouri Department of Natural Resources (DNR). Our plant is capable of producing 4.32 million gallons a day, and our average for June 2005 was between 2.6 and  3.2 million gallons per day. We serve a population of over 10,000 drinking water users. This includes almost 6,000 in Macon, the Cities of Bevier and Atlanta, and Macon County Public Water Supply District #1.