Voters supported the plan by a vote of 145-26 or 85 percent in favor. The vote was 61-14 in Barry County and 84-12 in Lawrence County.
Approval will enable the city to seek financing for the project through the State Revolving Fund, which will loan the money needed at 2 to 2.5 percent interest. The cost will be covered by water rate increases phased in over the last three years.
The treatment plant, part of a large water system upgrade, will take the mud out of water from the city's largest two wells plus the new well at Jack Henry and Associates. The plant will be built on the old Rutherford farm on the west side of town.
"This helps us get prepared for the future and to have clear water for the future," said Mayor Jim Orr.
"I'm pleased that the voters have seen the benefits of the long-range planning that's gone into the water treatment facility, which will provide for the continuing growth of Monett," said City Administrator Dennis Pyle.
"Voters said 'yes' by the same margin as our last wastewater election, about six to one," said Utilities Superintendent Pete Rauch. "That's wonderful."
The design for the plan is presently being prepared by the engineering firm of Allgeier, Martin and Associates in Joplin. Engineer Dean Willis anticipated submitting the application to the Missouri Department of Natural Resources for funding by Sept. 1 and completing the design by Jan. 5, 2012.
Regulatory approval of the plant design is expected by April 1, 2012. The construction contract should be awarded by June 1, 2012 with an anticipated project completion date of Jan. 1, 2014.