Kansas wastewater permits expiring in 2026
35 NPDES permits · 17 MGD combined average flow
35 publicly owned wastewater treatment plants in Kansas hold NPDES permits that expire during 2026, issued by Kansas Department of Health and Environment. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
| Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|
| Otis Waste Water Treatment Facility C/o City Hall | Otis | — | KS0091758 | Sep 2026 | 0 |
| Wakefield Mwtp | Wakefield | — | KS0027545 | Sep 2026 | 0 |
| Gardner - Kill Creek | Gardner | 2.06 | KS0095605 | Oct 2026 | 79 |
| Bonner Springs, City Of | Bonner Springs | 0.39 | KS0082881 | Oct 2026 | 23 |
| Tonganoxie Wastewater Plant | Tonganoxie | 0.62 | KS0093092 | Nov 2026 | 6 |
| Kansas City (plant No.20) WWTP | Kansas City | 2.59 | KS0080195 | Dec 2026 | 75 |
| Garden City, City Of | Garden City | 2.56 | KS0038962 | Dec 2026 | 3 |
| City Of Coffeyville WTP | Coffeyville | 2.38 | KS0050733 | Dec 2026 | 20 |
| Wichita - Four Mile Creek - New | Wichita | 2.38 | KS0100790 | Dec 2026 | 9 |
| Junction City Wastewater Department | Junction City | 1.32 | KS0034011 | Dec 2026 | 43 |
| Great Bend, City Of | Great Bend | 1 | KS0038491 | Dec 2026 | 0 |
| Independence, City Of | Independence | 0.96 | KS0095486 | Dec 2026 | 4 |
| Eudora, City Of | Eudora | 0.63 | KS0094609 | Dec 2026 | 29 |
| City Of Rose Hill WTP | Rose Hill | 0.28 | KS0098850 | Dec 2026 | 3 |
| Edgerton Big Bull Creek | Edgerton | 0.2 | KS0100374 | Dec 2026 | 11 |
| Kansas City (plant No. 14) WWTP | Kansas City | 0.06 | KS0080209 | Dec 2026 | 6 |
| Lakewood Hills Improvement District | Ozawkie | 0.03 | KS0095061 | Dec 2026 | 85 |
| Hanston Waste Water Treatment Plant | Hanston | 0.01 | KS0031143 | Dec 2026 | 234 |
| North Toronto Treatment Plant | Toronto | 0.0012 | KS0021890 | Dec 2026 | 97 |
| Effingham Sewer Treatment Plant C/o City Hall | Effingham | — | KS0047279 | Dec 2026 | 13 |
| Eureka Sewer Treatment Plant C/o City Hall | Eureka | — | KS0083178 | Dec 2026 | 9 |
| Havana Waste Water Treatment Ponds C/o City Hall | Havana | — | KS0082571 | Dec 2026 | 1 |
| Huron Waste Water Treatment Plant C/o Community Center | Huron | — | KS0047473 | Dec 2026 | 0 |
| Jetmore, City Of | Jetmore | — | KS0099562 | Dec 2026 | 5 |
| Lancaster Sewage Treatment Plant C/o City Hall | Lancaster | — | KS0024864 | Dec 2026 | 3 |
| Leavenworth Co. S.D. #2 Timberlake | Leavenworth | — | KS0087157 | Dec 2026 | 1 |
| Lecompton City Of STP | Lecompton | — | KS0055581 | Dec 2026 | 15 |
| Liberty Wastewater Plant | Liberty | — | KS0086223 | Dec 2026 | 19 |
| Madison, City Of | Madison | — | KS0093858 | Dec 2026 | 6 |
| Montgomery Co. S.D. #5-Sycamore | Sycamore | — | KS0086193 | Dec 2026 | 3 |
| Muscotah, City Of | Muscotah | — | KS0085707 | Dec 2026 | 6 |
| Perry, City Of | Perry | — | KS0029084 | Dec 2026 | 0 |
| Powhattan Wastewater Plant Dale Schuetz | Powhattan | — | KS0081540 | Dec 2026 | 40 |
| Smolan, City Of | Smolan | — | KS0099317 | Dec 2026 | 2 |
| Wetmore, City Of | Wetmore | — | KS0099431 | Dec 2026 | 0 |
Kansas permit renewals in 2026: 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 October 26, 2026.
Wastewater terms: NPDES permit · POTW · Biological nutrient removal · Tertiary treatment · Activated sludge · Oxidation ditch · all terms
Cite this page
Journalists, researchers and educators are welcome to quote these figures. Please credit Klarifi as the source and link to this page.
Klarifi. “NPDES permits expiring in 2026: Kansas wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/kansas/permits-expiring/2026Need a custom cut of the data for a state, a county or a list of plants? Email info@klarifi.io.