Awards listed by class, recipient, and (honorable mention).
| 2005 | ||
|---|---|---|
| Class 1A | Olathe Lakestone | (White City) |
| Class 1B | Dodge City | |
| Class 2 | ||
| Class 3 | Kansas City - WWTP #3 | |
| Class 4 | Kill Creek WWTP - Gardner Kansas | |
| Class 5 | ||
| Class 6A | Mid American Coco-Cola Bottling | (Tyson Prepared Foods - Winchester Division) |
| Class 6B | Hodgon Powder Company - Harrington Air Park | |
| Biosolids | City of Lawrence | |
| 2004 | ||
|---|---|---|
| Class 1A | City of Tescott | |
| Class 1B | City of Moundridge | (City of Lindsborg) |
| Class 2 | City of Kansas City WWTP #3 | |
| Class 3 | City of Clay Center | |
| Class 4 | City of Eudora | (City of McPherson) (North Topeka WWTP) (City of Lawrence) |
| Class 5 | City of Garden City | |
| Class 6A | EMC - Mid America Coca-Cola Bottlers, Inc. | |
| Class 6B | Sharpline Converting Company Inc. | |
| Class 6B | Coleman Company | |
| 2003 | ||
|---|---|---|
| Class 1A | ||
| Class 1B | ||
| Class 2 | City of Kansas City WWTP #3 | |
| Class 3 | City of Eudora | |
| Class 4 | City of Winfield City of Junction City |
|
| Class 5 | City of Manhattan | |
| Class 6A | Boeing Company | |
| Class 6B | Burlington, Northern & Santa Fe | |
| 2002 | ||
|---|---|---|
| Class 1A | ||
| Class 1B | ||
| Class 2 | Unified Gov't of Wyandotte County & KCK #3 | |
| Class 3 | City of Eudora | |
| Class 4 | City of Winfield City of Junction City |
|
| Class 5 | City of Manhattan | |
| Class 6A | Boeing Company | |
| Class 6B | Burlington, Northern & Santa Fe | |
| 2001 | ||
|---|---|---|
| Class 1A | City of Moran | |
| Class 1B | ||
| Class 2 | ||
| Class 3 | City of Clay Center | |
| Class 4 | City of Olathe (Cedar Creek) | |
| Class 5 | City of Manhattan | |
| Class 6A | Delphi Automotive Systems | |
| Class 6B | ||
| 2000 | ||
|---|---|---|
| Class 1A | City of Benton | |
| Class 1B | ||
| Class 2 | City of Kansas City WWTP #3 | |
| Class 3 | City of Clay Center | |
| Class 4 | City of Andover | |
| Class 5 | City of Newton | |
| Class 6A | Sunflower Electric | |
| Class 6B | GNB Battery | |
| 1999 | ||
|---|---|---|
| Class 1A | City of Colwich | |
| Class 1B | City of Dodge City | |
| Class 2 | City of Chapman | |
| Class 3 | City of Maize | |
| Class 4 | Little Bull Creek #2 | |
| Class 5 | City of McPherson | |
| Class 6A | The Boeing Company - Wichita | |
| Class 6B | The Cessna Aircraft Company - Wichita | |
| 1997 | ||
|---|---|---|
| Class 1A | City of Greensburg | |
| Class 1B | ||
| Class 2 | City of Kansas City, Kansas WWTP #14 | |
| Class 3 | City of Hillsboro | |
| Class 4 | City of Chanute | |
| Class 5 | City of Newton | |
| Class 6A | Hay & Forage | |
| Class 6B | Learjet | |
| 1996 | ||
|---|---|---|
| Class 1A | City of Dodge City | |
| Class 1B | ||
| Class 2 | City of Chapman | (City of Hanover) |
| Class 3 | City of South Hutchinson | |
| Class 4 | City of Olathe (Cedar Creek WWTP) | |
| Class 5 | City of Hays | (City of Kansas City - Kaw Point Plant #1) |
| Class 6A | Sunflower Electric Power Corporation, Holcomb Station | |
| Class 6B | Mid-America Wastewater Treatment, Inc. | (General Motors Fairfax Plant) |
| 1995 | ||
|---|---|---|
| Class 1A | City of Dodge City | |
| Class 1B | ||
| Class 2 | Johnson County UWWD - Little Bull Creek #2 | |
| Class 3 | Johnson County UWWD - Bull River WWTP | |
| Class 4 | City of BOnner Springs | |
| Class 5 | City of McPherson | |
| Class 6A | ||
| Class 6B | ||
| 1994 | ||
|---|---|---|
| Class 1A | City of Dodge City | |
| Class 1B | ||
| Class 2 | Blue Township WWTP | |
| Class 3 | ||
| Class 4 | City of Kansas City - WWTP #8 | |
| Class 5 | City of McPherson | |
| Class 6A | ||
| Class 6B | ||
| 1993 | ||
|---|---|---|
| Class 1A | City of Dodge City | |
| Class 1B | ||
| Class 2 | ||
| Class 3 | City of Fredonia | |
| Class 4 | City of Concordia | |
| Class 5 | City of Wichita | |
| Class 6A | ||
| Class 6B | ||
