Below is a current list of registrants.
| Full Name | Company |
|---|---|
| Ward Bauscher | City of Boulder |
| Mike Lozano | City of Boulder |
| Jose Alvarado | City of Boulder |
| Katie Knapp | City of Boulder |
| Jessica Stevens | City of Boulder |
| Kurt Bauer | City of Boulder |
| Jeff Arthur | City of Boulder |
| Josh Meck | City of Boulder |
| Tyler Purvis | City of Brush! |
| Adam Lancaster | City of Canon City |
| Phillip Bowman | City of Cody, Wyoming |
| Jeanie Duncan | City of Colorado Springs, Water Resources Engineering |
| Erin Powers | City of Colorado Springs, Water Resources Engineering |
| Adam Copper | City of Colorado Springs, Water Resources Engineering |
| John Adair | City of Colorado Springs, Water Resources Engineering |
| Tim Biolchini | City of Colorado Springs, Water Resources Engineering |
| Patrick Buckley | City of Commerce City |
| Lee Alverson | City of Commerce City - Public Works |
| Lisy Henson | City of Commerce City - Public Works |
| Betsy Suerth | City of Delta |
| Walt Hime | City of Denver |
| Rick Abeyta | City of Denver |
| Kevin Lewis | City of Denver Wastewater |
| Darren Mollendor | City of Denver Wastewater |
| Robert Berger | City of Denver Wastewater |
| Roger Sorge | City of Denver Wastewater |
| Kevin Monaweck | City of Denver Wastewater |
| Jeff Williams | City of Denver Wastewater |
| Dan Evans | City of Fort Collins |
| Heidi Hansen | City of Fort Collins |
| Heather McDowell | City of Fort Collins |
| Shane Boyle | City of Fort Collins |
| Douglas Groves | City of Fort Collins Utilities |
| Ken Haley | City of Fruita |
| Samuel L. Atkins | City of Fruita |
| John Eklund | City of Grand Junction |
| Heather Seitz | City of Greeley |
| Andrew Fisher | City of Greeley |
| Eric Jansen | City of Gunnison |
| Judah Gaioni | City of Longmont |
| Ela Nelson | City of Longmont |
| Monica Bortolini | City of Longmont |
| Doug Gossett | City of Longmont |
| Cameron Fowlkes | City of Louisville |
| Chris Carlson | City of Loveland |
| Eric Lessard | City of Loveland |
| Pam Acre | City of Northglenn |
| Brian Prunty | City of Rifle |
| Jim Kaiser | City of Thornton |
| Al Quintana | City of Thornton |