| 1998 | Glenn Pleasants,City of La Junta WWTP Adrian Moya, Village of Los Lunas Debbie Bult,City of Casper Wastewater Treatment Facility | 1999 | Jim Tallent, Littleton / Englewood WWTP Tracy Long, City of Casper WWTP Bobby Towle, Rio Grande Utility Corporation |
| 2000 | Steve Maxey, Parker Water and Sanitation District Leo Orozco, City of Santa Fe Leo Maestas, Cheyenne Board of Public Utilities | 2001 | Kevin Clark, Pinery Water and Wastewater District Kelly Rubrecht, Town of Jackson Dennis Fernandez, OMI Inc / Taos WWTP |
| 2002 | Jim Edwards, Avon WWTP Kurt Katzer, Aspen/Aspens II Water and Sewer District Arwin Vasquez, OMI Inc./ Taos WWTP | 2003 | Dennis Schump, Greeley Water Pollution Control Facility Arwin Vasquez, OMI Inc./Town of Taos WWTP |
| 2004 | Brian Pence, Breckenridge Sanitation District Ruben Gonzales, OMI, Inc. City of Rio Rancho | 2005 | Jeff Mahagan Tim Hayes Jayne Swift |
| 2006 | Douglas Walker, City of Boulder OMI Team, Taos | 2007 | Greg Farmer, Littleton/Englewood WWTP Leo Wilson, City of Hobbs |
| 2008 | Bill Burks, Tri-Lakes Joint-Use Authority Anthony Martinez, CH2M HILL OMI | 2009 | Mark McCormack, Widefield Water & Sanitation District Joey Nogales, Albuquerque Bernalillo County Water Authority |
| 2010 | Chris Brownell, City Of Idaho Springs Melody Robinson, City of Thermopolis Tamara Beaty, OMI Inc. Rio Rancho | 2011 | Greg Reichrath, 75th St. WWTF, City of Boulder Donald Thymes, CH2M HILL OMI/Rio Rancho Project |
| 2012 | Chris Douville, City of Boulder | 2013 | Dale Adams at Colorado Springs Utilities |
| 2014 | Ernie Oram, City of Boulder | 2016 | Martin Alvis, Metro Wastewater Reclamation District |
| 2017 | Orren West, Metro Wastewater Reclamation District | 2019 | Ramon Arguello, City of Ft. Collins |
| 2021 | Jake Prentiss, Clear Creek O/M | 2022 | Craig Hibbard, Boxelder Sanitation District |
| 2023 | Donald Williamson, Jacobs |
| 1998 | Harlo L Bailey, South Adams County Water & Sanitation District | 1999 | Scott Kennedy, City of Boulder WWTP Mike Shoefelt, City of Laramie WWTP Terry Goff, City of Carlsbad |
| 2000 | Robert Smith, Plum Creek Wastewater Authority Donnie Salazar, City of Santa Fe | 2001 | Douglas A. Kohl, Yellowstone National park Jeff Burkett, OMI Inc / Taos WWTP |
| 2002 | Mark Dannells, OMI, Inc. Arwin Vasquez, OMI, Inc. Taos Wastewater Treatment Plant | 2003 | Kenny Lewis, Fort Lupton Project, OMI, Inc. Mateo Abeyta, City of Albuquerque South Side Water Reclamation Plant |
| 2004 | Angelo Carrieri, Parker W&S District Mark Baker, OMI, Inc., City of Rio Rancho | 2005 | Jerry Lee Kyle Medders |
| 2006 | Leigh Rickert, Boulder WWTP Tony Reynolds, City of Douglas Arwin Vasquez, OMI, Taos | 2007 | Erik Ekbom, Pinery Water and Wastewater District William Madasz, Teton Village Water & Sewer District |
| 2008 | Wayne Tsosie, City of Farmington | 2009 | Dave Montgomery, Albuquerque Bernalillo County Water Authority |
| 2010 | T.J. Doering OMI, Inc., City of Rio Rancho | 2011 | Mark Becker, CH2M HILL OMI/Rio Rancho Project |
| 2013 | Dale Colerick, City of Brush | 2015 | Craig Hibbard, City of Fort Collins |
| 1998 | Jason Palmer, City of Green River James Garley, Village of Los Lunas | 1999 | Jim Fink, City of Albuquerque Greg Handelman, Cheyenne Board of Public Utilities |
| 2000 | Wayne Packard, Cheyenne Board of Public Utilities Dan Jaramillo, City of Santa Fe | 2001 | Pinery Water and Wastewater District City of Green River City of Santa Fe |
| 2002 | Mark Dannells, OMI, Inc. Mike Hoeft, Aspen/Aspens II Water and Sewer District Charles Barnett, Johnson Controls of Northern New Mexico | 2003 | Kenny Lewis, Fort Lupton Project, OMI, Inc. Ernest Macias, OMI Inc./City of Grants WWTP |
| 2004 | Robert W. Fleck & Brent A. Shafranek St. VrainSanitation District Lawrence Romero, OMI, Inc. City of Rio Rancho | 2006 | Wayne Ramey, Northwest Lakewood Sanitation District Brian Sweeney, City of Douglas |
| 2007 | T. R. Richard, Pinery Water and Wastewater District | 2008 | City of Aurora Wastewater Division Richard Sims, City of Rio Rancho |
| 2009 | City of Aurora Wastewater Division Lawrence Romero CH2M HILL OMI – City of Rio Rancho | 2010 | City of Aurora Wastewater Division City of Sheridan Collection Crew Edward Salazar CH2M HILL OMI/Grants Project |
| 2011 | New Mexico - Patrick Sandoval, CH2M HILL OMI/Grants Project | 2012 | Joshua Johnson, Upper Blue Sanitation District Christopher DeFraia, CH2M HILL/Rio Rancho |
| 2013 | Edward Salazar at CH2M HILL – Grants Project | 2015 | Zach Collins, Woodmoor W&SD Lance Wenholz, Metro Wastewater Reclamation District |
| 2016 | Adam Pelican, Falcon Environmental | 2019 | Stephanie Segler, HDR, Inc. |
| 2021 | Ceila Rethamel, City of Westminster |
| 2001 | Ms. Pat Butler | 2002 | Ms. Brenna Durkin |
| 2003 | Ms. Debbie Patton | 2004 | Sandy Orren |
| 2005 | Gail Higginson | 2006 | Linda Ramey |
| 2007 | Sylvia Rottman, JoAnn Vold | 2008 | Virginia Farmer |
| 2009 | Becky Medlock | 2010 | Debbie Taylor |
| 2011 | Page Parker | 2012 | Ann Dingeman |
| 2013 | Dennis Stowe | 2014 | Greg Farmer |
| 2015 | Stephanie Elliott | 2016 | Debby Patton |
| 2017 | Marc Hughes | 2019 | TEAMS |
| 2021 | Kevin Hill |
| 2014 | Upper Thompson Sanitation District |
| 2017 | Christopher Archuleta, CH2M and Ron Rosen and the CH2M City of Farmington Team |
| 1963 | Jim Phillips | |||
| 1964 | Howard Lewis | |||
| 1965 | Alton Ragsdale | |||
| 1966 | C.F. Robertson | |||
| 1967 | C.W. Chrisetenson | |||
| 1968 | Bob Lowe | |||
| 1969 | Al Jones | Jack Sampson | ||
| 1970 | John Puntenney | Jim Warner | ||
| 1971 | Toni Rossi | |||
| 1972 | Dan Linstedt | Bill Warner | Art Vondrick | |
| 1973 | S.R. Jenkin | Jim Abbott | J. Floyd Byrd | Joe Hanlon (Honorary) |
| 1974 | Howard Lacy | Bob McWhinnie | Bob Kocherha | |
| 1975 | Carl Houck | Farrell McLean | ||
| 1976 | Bill Kobitz | Emmett Gos | Bob Champlin | Bob Canham |
| 1977 | Jesse Lunsford | Bill Marti | Bob Streeter | Martin Lang |
| 1978 | William F. Turney | Dwight Sayles | Elmer E. Ross | |
| 1979 | Hal Kepner | Dave Sellards | ||
| 1980 | Daryl Gruenwald | Bob Hegg | ||
| 1981 | Bill Page | Tom Feeley | ||
| 1982 | Bob Swedberg | Kerwin Rakness | ||
| 1983 | Ed Archuleta | Dave Hubly | ||
| 1984 | Clark Tuck | Darryl Allenam | ||
| 1985 | Ron Schuyler | Don Felke | ||
| 1986 | Dick Kuchenrither | Pam Pepper | ||
| 1987 | Joe Tamburini | Larry Demers | ||
| 1988 | Howard Delaney, CO | Bob Jelinek | ||
| 1989 | Bill Brinker | Tom Husto | Ron Mosher | |
| 1990 | Jim Ris | Terry Anderson | ||
| 1991 | Bill Mixer | Dave Oerke | ||
| 1992 | Tom Gallier | Mark Van Nostrand | ||
| 1993 | Debra Campbell | Steve Polson | Dale Butler | |
| 1994 | R. Wayne Ramey | Karen Speer | Jack Young | |
| 1995 | Jose Velazquez | Roberta Rivers | ||
| 1996 | Ernie Oram | Norman Henderson | ||
| 1997 | Bob Alberts | Brian Janonis | Joe Chwirka | |
| 1998 | Tom Moretto | Michael McCrary | ||
| 1999 | Tom Dingeman | Marion Hill | ||
| 2000 | Greg Farmer | Terry Franklin | ||
| 2001 | Steve Frank | Sherri Jones | Julie Samora | |
| 2002 | Debbie Stenson | Tony Woodrum | ||
| 2003 | Dave DuBois | Mark Sampson | Paul Heppler | |
| 2004 | Jenny Hartfelder | Kevin Tone | ||
| 2005 | Kevin Hill | Greg Woodward | Ray Kemp | |
| 2006 | John Rehring | Jim Tallent | ||
| 2007 | Jamie Eichenberger | Jim Medlock | ||
| 2008 | Jeff Rabas | |||
| 2009 | Will Raatz | Jason Mumm | ||
| 2010 | Jeff Berlin | Nikki Crews | ||
| 2011 | Edyta Stec-Uddin | Brenna Durkin | ||
| 2012 | Jim Edwards | Dennis Schump | ||
| 2013 | Tye Jordan | Julie Smith | ||
| 2014 | Joe R. Tamburini | Blair Corning | ||
| 2015 | Stacey Walker | Bill Peretti | ||
| 2016 | Ceila Rethamel | Steve Hettinger | Art Umble | |
| 2017 | Pieter Van Ry | Steve Walker | Zach Collins | |
| 2018 | Kristin Johansen | Debbie Taylor | Kevin Feeley | |
| 2019 | Jamie Langer | William Hoyt | Hannah Wilner | |
| 2021 | Tanja Rauch-Williams | Dave Lewis | Deena Davidson | |
| 2022 | Sarah Reeves | Clay Rahn | Kacie Allard | |
| 2023 | Cole Sigmon | Mark Valentine |
| 1998 | Fremont Sanitation District, Florence, Colorado | 1999 | City of Greeley, Water Pollution Control Facility |
| 2000 | Pinery Water and Wastewater District | 2001 | City of Santa Fe |
| 2002 | Aspen/Aspens II Water and Sewer District | 2003 | Southern Ute Indian Tribe WWTP |
| 2004 | City of Greeley Water Pollution Control Facility | 2006 | Eastern Adams City Metropolitan District Ramey Environmenta |
| 2008 | Buena Vista Sanitation District | 2009 | Artesia Wastewater Plant |
| 2010 | Littleton / Englewood WWTP | 2011 | Greeley Water Pollution Control Facility |
| 2012 | City of Boulder 75th Street WWTF | 2013 | Town of Georgetown |
| 2014 | Littleton/Englewood WWTP | 2015 | Upper Thompson Sanitation District |
| 2016 | Clifton Sanitation District | 2017 | Las Campanas Water and Sewer Cooperative |
| 2018 | Farmers Korner Wastewater Treatment Facility and Southside Water Reclamation Plant | 2019 | South Platte Water Renewal Partners |
| 2022 | Lower Fountain Metropolitan Sewage Disposal District | 2023 | Avon WWTF, Eagle River Water and Sanitation District |
| 1998 | Littleton/Englewood WWTP & Colorado State University | 1999 | Steve Glass, City of Albuquerque Southside Water Reclamation Plant City of Colorado Springs, Water Resources Dept. Hanna ranch |
| 2000 | Dennis Fernandez, OMI Inc / Taos WWTP | 2001 | Southern Ute Indian Tribe WWTP Albuquerque Wastewater Utility Division |
| 2002 | Aspen/Aspens II Water and Sewer District Town of Taos WWTP | 2003 | Littleton/Englewood WWTP City of Las Cruces Jake Hands Wastewater Treatment Facility |
| 2004 | Wayne Schultz, Parker Ag Services Joe Madrid, OMI, Inc. City of Rio Rancho | 2005 | Metro Wastewater Reclamation District |
| 2006 | Gerald Salazar, OMI, Taos | 2007 | Mike Scharp, Parker Ag Services, LLC |
| 2008 | Paul Heppler, 75th Street WWTF Boulder | 2009 | Joe Bailey, Albuquerque Bernalillo County Water Authority |
| 2010 | Kipp Parker, Paul Grundemann, Tim Grotheer - Pankake Ranch, Centennial Water and Sanitation, Plum Creek Wastewater Jake Hands Wastewater Treatment Facility, City of Las Cruces | 2011 | Clear Springs Ranch, Colorado Springs Utilities |
| 2012 | Littleton / Englewood WWTP Joe Madrid, CH2M HILL/Rio Ranch | 2013 | Eric R. Lopez at the Las Cruces Utilities |
| 2015 | Littleton / Englewood WWTP | 2016 | Arlisa Michael, Metro Wastewater Reclamation District |
| 2019 | Drake WRF and Meadow Springs Ranch, City of Ft. Collins | 2022 | Fort Lupton Wastewater Treatment Plant |
| 2009 | Littleton / Englewood WWTP | 2010 | City of Boulder, 75th St. WWTP |
| 2011 | City of Fort Collins, Drake Water Reclamation Facility | 2012 | City of Greeley, WPCF |
| 2013 | South Adams County Water & Sanitation District | 2014 | New Mexico CH2M HILL Projects |
| 2016 | Metro Wastewater Reclamation District | 2017 | Parker Water and Sanitation District |
| 2018 | WateReuse Colorado | 2019 | Trinidad Wastewater Treatment Facility |
| 2021 | Metro Water Recovery | 2022 | Eagle River Water and Sanitation District |
| 2023 | South Platte Renew |
| Year | Municipality | Vendor | Engineering Firm |
| 2001 | Littleton/Englewood WWTP | Water Control Corporation | RTW |
| 2002 | City of Broomfield, CO | Water Technology Group | Alberts Water and Wastewater |
| 2003 | Colorado Springs Utilities, | Canyon Systems | Brown & Caldwell Consultants |
| 2004 | Copper Mountain Consolidated Metro District | MISCO | Integra Engineering |
| 2005 | Littleton/Englewood WWTP | Water Control Corporation | Richard P. Arber Assoc. |
| 2006 | Littleton/Englewood WWTP | Mueller Company | JVA Engineers |
| 2007 | City of Rifle | Bobcat of the Rockies | Ramey Environmental |
| 2008 | Colorado Springs Utilities | Liquid Waste Management | Richard P. Arber associates |
| 2009 | Metro Wastewater Reclamation District | R.E.I. | CH2M Hill and Carollo Engineers |
| 2010 | City of Greeley | isiWest | CDM |
| 2011 | City of Fort Collins | Hach Company | Stantec Consulting, Inc |
| 2012 | Eagle River Water and Sanitation District | Glacier Construction | Carollo and MWH |
| 2013 | Woodmoor Water& Sanitation District | J.R. Filanc Construction Company | Ramey Environmental Compliance, Inc |
| 2014 | South AdamsCounty Water and Sanitation District | Fluid technology | Tetra Tech |
| 2015 | Metro Wastewater Reclamation District | Garney | Stantec |
| 2016 | Parker Water & Sanitation District | Western Summit Constructors, Inc. | W2 Engineers |
| 2017 | City of Boulder | Coombs-Hopkins | Carollo Engineers |
| 2018 | City of Westminster | American Ductile Iron Pipe | HDR, Inc. |
| 2019 | City of Gunnison | Engineered Equipment Solutions | CDM Smith |
| 2021 | Metro Water Recovery | Water for People | Direct Discharge Consulting, LLC |
| 2022 | Colorado Springs Utilities | Colorado Analytical Laboratories | JDS-Hydro, a division of RESPEC |
| 2023 | South Platte Renew | Garver | PCL Construction |
| 1950 Leonard O. Williams Jr. | 1953 Charles G. Caldwell | 1959 R. P. Lowe |
| 1962 Jack Maquire | 1967 Ernest Hamilton | 1970 William Turney |
| 1973 K. D. Linstedt | 1974 Allen Jones | 1975 James E. Abbott |
| 1976 James B. Warne | 1977 Jack P. Sampson | 1978 William H. Hornberg |
| 1979 David Hubly | 1980 Howard Lacy | 1981 William Page |
| 1982 Daryl Gruenwald | 1983 William Martin | 1984 George Sellards |
| 1985 Bob A. Hegg | 1986 Robert E. Swedberg | 1987 Ron Schuyler |
| 1988 Dick Kuckenrither | 1989 Clark Tuck | 1990 Joe Tamburini |
| 1991 Robert T. Jelinek | 1992 Larry DeMers | 1993 William Brinker |
| 1994 Jim Ris | 1995 Tom Huston | 1996 Ron Mosher |
| 1997 Debra Campbell | 1998 Jose' Velazquez | 1999 Don Felke |
| 2000 Dale Butler | 2001 Brian Janonis | 2002 R. Wayne Ramey |
| 2003 Joseph D. Chwirka | 2004 Tom Dingeman | 2005 Steve Frank |
| 2006 Debbie Stenson | 2007 Mark Sampson | 2008 Jenny Hartfelder |
| 2009 Greg Woodward | 2010 Tony Woodrum | 2011 Kevin Hill |
| 2012 Jamie Eichenberger | 2013 John Rehring | 2014 Jeff Rabas |
| 2015 William Raatz | 2016 Edyta Stec-Uddin | 2017 Jeff Berlin |
| 2018 Joe R. Tamburini | 2019 Bill Peretti | 2021 Julie Smith |
| 2022 Stacey Walker | 2023 Jamie Safulko |
| 1986 | Public Service Company of New Mexico Wastewater Operations Division | 1987 | City of Colorado Springs Dept. of Utilities Wastewater Division |
| 1989 | Littleton / Englewood WWTP | 1990 | Crow Creek and Dry Creek WWTP Cheyenne Public Utilities |
| 1991 | City of Loveland, CO WWTP | 1992 | City of Arvada, CO Wastewater Treatment Division |
| 1993 | Village of Los Lunas, New Mexico | 1994 | Metro Wastewater Reclamation District Denver, CO |
| 1995 | Breckenridge Water and Sanitation District | 1996 | Eagle River Water and Sanitation District Vail, CO |
| 1997 | City of Boulder 75th St. WWTP | 1998 | Silverthorn/Dillon Joint Authority |
| 1999 | Dove Creek WWTP, Dove Creek, Colorado | 2000 | Plum Creek WWTP |
| 2002 | OMI, Inc,Taos, New Mexico | 2006 | South Adams County Water & Sanitation District Williams Monaco Wastewater Treatment Plant |
| 2007 | Colorado Springs Utilities | 2008 | Town of Erie Colorado |
| 2009 | Eagle River Water and Sanitation District | 2010 | Drake Water Reclamation Facility, Ft Collins, CO |
| 2011 | Clifton Sanitation District | 2013 | Estes Park Sanitation District |
| 2014 | Littleton / Englewood WWTP | 2015 | MillerCoors Brewery RRF’s GWTP and PWTP |
| 2016 | Las Campanas Water and Sewer Cooperative | 2017 | Clifton Sanitation District |
| 2018 | Metro Wastewater Reclamation District, Northern Treatment Plant | 2019 | Sand Creek Water Reuse Facility |
| 2021 | Jacobs/City of Farmington | 2022 | Las Campanas Water Cooperative |
| 2023 | Jacobs - City of Gallup, New Mexico WWTP |
| 1962 | Farrell McLean | 1965 | Larry Faulkner | 1968 | Ray Duggan |
| 1971 | Robert D. Hall | 1973 | Bobby A. Kocerha | 1974 | Leonard H. Stroud |
| 1975 | Ralph Sterry | 1976 | Raymond Lucero | 1977 | James C. Jamsay |
| 1978 | Estell "Hap" Mayberry | 1979 | Max M. Grimes | 1980 | Perry B. Libby |
| 1981 | Bud Wilson | 1984 | Edmund G. Archuleta | 1985 | Thomas Huston |
| 1987 | Michael J. Beck | 1988 | Donald R. Felke | 1989 | Buck Wenger |
| 1990 | Michael L. McCrary | 1991 | Terry W. Anderson | 1992 | Jimmy Brewer |
| 1993 | Ernie Oram | 1994 | R. Wayne Ramey | 1995 | Dale Butler |
| 1996 | Norman Henderson | 1997 | Wes Bressler | 1998 | Jack Young |
| 1999 | Tom Dingeman | 2000 | Bill Mixer | 2001 | Greg Farmer |
| 2002 | Tony Woodrum | 2003 | Timothy G. Grotheer | 2004 | Bob Alberts |
| 2005 | Steve Walker | 2006 | Paul Heppler | 2007 | Jeff Rabas |
| 2008 | Kevin Hill | 2009 | Jim Medlock | 2010 | Leonard Robb |
| 2011 | Craig Barnes | 2012 | Earl Picard | 2013 | Edyta Stec-Uddin |
| 2014 | Jim Kaufman | 2015 | Blair Corning | 2016 | Cole Sigmon |
| 2017 | Kenneth Rutt | 2018 | William Hoyt | 2019 | Eli Jennings |
| 2020 | Parker Newbanks III | 2021 | Ramon Arguello | 2022 | Kenneth Lipe |
| 2023 | Jim Nickolette |
| 1998 | Molly L. Castleberry, Denver, CO | 1999 | Mike Schoenberg, Greeley, CO |
| 2000 | Cindy Wright-Jones, Ft.Collins, CO | 2001 | Russel Church |
| 2002 | Stacey Walker, Littleton/Englewood WWTP | 2003 | Deborah Taylor UTSD, Estes Park, CO |
| 2004 | LesaJulian, City and County of Broomfield | 2005 | Joan Day, Littleton / Englewood WWTP |
| 2006 | Linda Puga | 2007 | Leah O’Connor, Aurora Water |
| 2008 | KathryneMarko, City of Longmont | 2009 | Jason Graham, City of Fort Collins |
| 2010 | Patty McClellan - Colorado Analytical Labs | 2011 | Blair Corning, SACWSD |
| 2012 | Kevin Feeley, Metro WWRD | 2013 | Stacey Walker, Littleton/Englewood WWTP |
| 2014 | Jo Holcomb, City of Grand Junction | 2015 | Kevin Feeley, Metro Wastewater Reclamation District |
| 2016 | Dave Meyer, Westminster | 2017 | Natalie Love |
| 2018 | Shahid Malik | 2019 | Elisabeth Werth |
| 2022 | Dawn Cowell, City and County of Broomfield | 2023 | Sherry Scaggiari, Aurora Water |
| 2023 | Madeline Harris |
| 2023 | Arlisa Michael |