Kansas wastewater permits expiring in 2026
42 NPDES permits · 18 MGD combined average flow
42 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 | Technology | Violations (3y) |
|---|---|---|---|---|---|---|
| Cimarron Wastewater Plant | Cimarron | — | KS0091791 | Sep 2026 | Uncovered lagoons | 0 |
| Fall River Municipal Waste Water Treatment Facility C/o City Hall | Fall River | — | KS0116963 | Sep 2026 | Uncovered lagoons | 1 |
| Leavenworth Co. S.D. #5 Ginger Crk | Basehor | — | KS0090522 | Sep 2026 | Uncovered lagoons | 0 |
| Longton Sewer Treatment Plant C/o City Hall | Longton | — | KS0046019 | Sep 2026 | Uncovered lagoons | 2 |
| Otis Waste Water Treatment Facility C/o City Hall | Otis | — | KS0091758 | Sep 2026 | Uncovered lagoons | 0 |
| Sedan City Of Waste Water Treatment Facility | Sedan | — | KS0089746 | Sep 2026 | Uncovered lagoons | 4 |
| Tyro Wastewater Plant | Tyro | — | KS0081264 | Sep 2026 | Uncovered lagoons | 0 |
| Valley Falls Waste Water Treatment Plant C/o City Hall | Valley Falls | — | KS0022543 | Sep 2026 | Uncovered lagoons | 12 |
| Wakefield Mwtp | Wakefield | — | KS0027545 | Sep 2026 | Uncovered lagoons | 0 |
| Gardner - Kill Creek | Gardner | 1.83 | KS0095605 | Oct 2026 | Clarifiers, Carrousels / oxidation ditches | 79 |
| Bonner Springs, City Of | Bonner Springs | 0.35 | KS0082881 | Oct 2026 | Clarifiers, Carrousels / oxidation ditches | 23 |
| Tonganoxie Wastewater Plant | Tonganoxie | 0.53 | KS0093092 | Nov 2026 | Clarifiers, Carrousels / oxidation ditches | 6 |
| City Of Coffeyville WTP | Coffeyville | 3.25 | KS0050733 | Dec 2026 | Uncovered lagoons | 22 |
| Kansas City (plant No.20) WWTP | Kansas City | 2.64 | KS0080195 | Dec 2026 | Clarifiers | 74 |
| Wichita - Four Mile Creek - New | Wichita | 2.41 | KS0100790 | Dec 2026 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 10 |
| Garden City, City Of | Garden City | 2.38 | KS0038962 | Dec 2026 | Clarifiers, Carrousels / oxidation ditches | 3 |
| Junction City Wastewater Department | Junction City | 1.84 | KS0034011 | Dec 2026 | Clarifiers, Aerated lagoons, Uncovered lagoons, Biogas silos | 44 |
| Great Bend, City Of | Great Bend | 1.08 | KS0038491 | Dec 2026 | Clarifiers, Carrousels / oxidation ditches, Biogas silos | 0 |
| Independence, City Of | Independence | 1.07 | KS0095486 | Dec 2026 | Aerated lagoons, Uncovered lagoons | 4 |
| Eudora, City Of | Eudora | 0.36 | KS0094609 | Dec 2026 | Aerated lagoons, Uncovered lagoons | 29 |
| City Of Rose Hill WTP | Rose Hill | 0.28 | KS0098850 | Dec 2026 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 2 |
| Edgerton Big Bull Creek | Edgerton | 0.17 | KS0100374 | Dec 2026 | — | 11 |
| Lakewood Hills Improvement District | Ozawkie | 0.04 | KS0095061 | Dec 2026 | — | 85 |
| Kansas City (plant No. 14) WWTP | Kansas City | 0.03 | KS0080209 | Dec 2026 | Uncovered lagoons | 6 |
| Hanston Waste Water Treatment Plant | Hanston | 0.0095 | KS0031143 | Dec 2026 | — | 232 |
| North Toronto Treatment Plant | Toronto | 0.00098 | KS0021890 | Dec 2026 | Clarifiers | 97 |
| Effingham Sewer Treatment Plant C/o City Hall | Effingham | — | KS0047279 | Dec 2026 | Uncovered lagoons | 23 |
| Eureka Sewer Treatment Plant C/o City Hall | Eureka | — | KS0083178 | Dec 2026 | Uncovered lagoons | 10 |
| Havana Waste Water Treatment Ponds C/o City Hall | Havana | — | KS0082571 | Dec 2026 | Uncovered lagoons | 11 |
| Huron Waste Water Treatment Plant C/o Community Center | Huron | — | KS0047473 | Dec 2026 | Uncovered lagoons | 0 |
| Jetmore, City Of | Jetmore | — | KS0099562 | Dec 2026 | Uncovered lagoons | 5 |
| Lancaster Sewage Treatment Plant C/o City Hall | Lancaster | — | KS0024864 | Dec 2026 | Uncovered lagoons | 3 |
| Leavenworth Co. S.D. #2 Timberlake | Leavenworth | — | KS0087157 | Dec 2026 | Uncovered lagoons | 1 |
| Lecompton City Of STP | Lecompton | — | KS0055581 | Dec 2026 | Aerated lagoons | 14 |
| Liberty Wastewater Plant | Liberty | — | KS0086223 | Dec 2026 | Uncovered lagoons | 19 |
| Madison, City Of | Madison | — | KS0093858 | Dec 2026 | Uncovered lagoons | 6 |
| Montgomery Co. S.D. #5-Sycamore | Sycamore | — | KS0086193 | Dec 2026 | Aerated lagoons, Uncovered lagoons | 1 |
| Muscotah, City Of | Muscotah | — | KS0085707 | Dec 2026 | Uncovered lagoons | 6 |
| Perry, City Of | Perry | — | KS0029084 | Dec 2026 | Uncovered lagoons | 0 |
| Powhattan Wastewater Plant Dale Schuetz | Powhattan | — | KS0081540 | Dec 2026 | Uncovered lagoons | 40 |
| Smolan, City Of | Smolan | — | KS0099317 | Dec 2026 | Uncovered lagoons | 2 |
| Wetmore, City Of | Wetmore | — | KS0099431 | Dec 2026 | Uncovered lagoons | 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 September 11, 2026.