| Andrew Huffman | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Kelsey Woolard | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Sep-Dec21 |
| Cheryl L Subler | County Commissioners' Association of Ohio | — | Sep-Dec21 |
| Andrew Minton | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| Greg Bennett | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| William L Byers, IV | Ductile Iron Pipe Research Association | — | Sep-Dec21 |
| Charles H Gerhardt, III | Hamilton County Administration | — | Sep-Dec21 |
| James T Benedict | Hamilton County Administration | — | Sep-Dec21 |
| Andrew Huffman | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Brooke A Cheney | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Kelsey Woolard | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Matthew S Whitehead | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Victor F Hipsley | Northeast Ohio Regional Sewer District | — | Sep-Dec21 |
| Andrew Huffman | Ohio Rural Water Association | — | Sep-Dec21 |
| Brooke A Cheney | Ohio Rural Water Association | — | Sep-Dec21 |
| Kelsey Woolard | Ohio Rural Water Association | — | Sep-Dec21 |
| Matthew S Whitehead | Ohio Rural Water Association | — | Sep-Dec21 |
| Victor F Hipsley | Ohio Rural Water Association | — | Sep-Dec21 |