Anaerobic digesters and biogas: wastewater treatment plants in Kansas
31 plants · 9% of the state · 100 MGD reported by 28 plants
Klarifi identifies 31 publicly owned wastewater treatment plants with anaerobic digesters and biogas in Kansas, 9% of the 354 plants in the state (100 MGD reported by 28 plants). The largest is Kansas City Water Pollution Control Div. in Kansas City at 15.44 MGD.
Anaerobic digesters stabilise sludge in sealed heated tanks and produce biogas, visible from the air as digester silos and gas holders. Plants with digesters are typically above 5 MGD and are the buyers of mixing, heating, gas handling, cogeneration and dewatering equipment.
The largest plants with anaerobic digesters in Kansas
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Kansas City Water Pollution Control Div. | Kansas City | 15.44 | KS0038563 | May 2030 | 0 |
| 2 | Joco Tomahawk Creek | Leawood | 12.13 | KS0100854 | Apr 2031 | 1 |
| 3 | Topeka Oakland Wastewater Plant | Topeka | 10.55 | KS0042722 | Jan 2027 | 63 |
| 4 | Joco Douglas Smith Mid Basin | Overland Park | 10.2 | KS0119601 | Feb 2027 | 0 |
| 5 | Joco Nelson Complex Wastewater Plant | Mission | 7.21 | KS0055492 | Jan 2030 | 50 |
| 6 | Lawrence, City Of | Lawrence | 6.02 | KS0038644 | Jul 2029 | 14 |
| 7 | Joco Blue River District #1 | Stanley | 5.14 | KS0092738 | Dec 2027 | 0 |
| 8 | Emporia Wastewater Treatment Plant | Emporia | 4.23 | KS0046728 | Apr 2028 | 27 |
| 9 | Salina, City Of | Salina | 3.98 | KS0038474 | Dec 2029 | 5 |
| 10 | Hutchinson, City Of | Hutchinson | 3.74 | KS0036188 | Dec 2028 | 16 |
| 11 | Leavenworth, City Of | Leavenworth | 3.18 | KS0036366 | Feb 2028 | 11 |
| 12 | Pittsburg City Of Mun WWTP | Pittsburg | 2.7 | KS0200022 | Jun 2028 | 68 |
| 13 | Winfield, City Of | Winfield | 1.87 | KS0051926 | Nov 2030 | 49 |
| 14 | Junction City Wastewater Department | Junction City | 1.84 | KS0034011 | Dec 2026 | 44 |
| 15 | Arkansas City Mwwtp | Arkansas City | 1.61 | KS0044831 | Feb 2028 | 12 |
| 16 | Chanute, City Of | Chanute | 1.47 | KS0080837 | Jan 2028 | 1 |
| 17 | Liberal Mechanical Plant (new) | Liberal | 1.36 | KS0100986 | Jun 2029 | 39 |
| 18 | Olathe Harold (main Plant) | Olathe | 1.3 | KS0045802 | Jun 2028 | 5 |
| 19 | Great Bend, City Of | Great Bend | 1.08 | KS0038491 | Dec 2026 | 0 |
| 20 | Augusta WWTP | Augusta | 0.99 | KS0094561 | Sep 2027 | 41 |
| 21 | Wichita #3 Wastewater Plant | Wichita | 0.98 | KS0095681 | Oct 2027 | 5 |
| 22 | Parsons WWTP | Parsons | 0.62 | KS0097560 | Sep 2028 | 4 |
| 23 | City Of Pratt WTP | Pratt | 0.58 | KS0049751 | Oct 2027 | 2 |
| 24 | Hesston Waste Water Treatment | Hesston | 0.56 | KS0022799 | May 2027 | 30 |
| 25 | Haysville, City Of | Haysville | 0.36 | KS0090921 | Oct 2027 | 19 |
Contacts and project signals for every plant on this list
Klarifi adds verified decision-maker contacts, permit limits, discharge monitoring data and the capital projects planned in each city, filterable by technology, size and compliance record.
Other technologies in Kansas
Anaerobic digesters and biogas in other states
Anaerobic digesters and biogas in Kansas: questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026.