| Illinois | Minnesota | Wisconsin |
|
| 2011 |
Jason Treat Village of Antioch, IL |
Jeffery Knutson City of St. Peter, MN |
Robert Sherr Lake Mills, WI |
| 2010 |
Gary Sowma North Shore Sanitary District, IL |
Rick Ashling City of Albert Lea, MN |
Dave Lefebvre Green Bay Metropolitan Sewerage Dist, WI |
| 2009 |
Ralph Pfister Yorkville-Bristor S.D. IL |
Darsey Thoen City of Moorhead, MN |
Paul Christensen City of Fort Atkinson, WI |
| 2008 |
Greg Brunst Village of Addison |
Dean Nelson City of Owatonna |
Jim Thalke Village of Sussex |
2007 |
Jim Daugherty Thorn Creek S.D. |
Les Lange City of Willmar |
Dennis Egge Janesville |
2006 |
Steven Vella Village of Fox Lake |
Richard Bristow Rahr Malting Co. |
Tom Steinbach City of Oconomowoc |