Kansas wastewater permits expiring in 2027
56 NPDES permits · 37 MGD combined average flow
56 publicly owned wastewater treatment plants in Kansas hold NPDES permits that expire during 2027, 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) |
|---|---|---|---|---|---|---|
| Topeka Oakland Wastewater Plant | Topeka | 10.55 | KS0042722 | Jan 2027 | Carrousels / oxidation ditches, Biogas silos, Biogas balloons | 63 |
| Clearwater Waste Water Treatment Facility C/o City Hall | Clearwater | — | KS0022365 | Jan 2027 | Uncovered lagoons | 5 |
| Joco Douglas Smith Mid Basin | Overland Park | 10.2 | KS0119601 | Feb 2027 | Aerated lagoons, Biogas silos, Biogas balloons | 0 |
| Caney Sewer Treatment Plant | Caney | 0.24 | KS0027481 | Feb 2027 | Clarifiers, Carrousels / oxidation ditches | 13 |
| Arlington Waste Water Treatment Facility | Arlington | — | KS0049760 | Mar 2027 | Uncovered lagoons | 1 |
| Fun Valley | Hutchinson | — | KS0080586 | Mar 2027 | Uncovered lagoons | 0 |
| Winchester Waste Water Treatment Facility C/o City Hall | Winchester | — | KS0047511 | Mar 2027 | Uncovered lagoons | 2 |
| Hesston Waste Water Treatment | Hesston | 0.56 | KS0022799 | May 2027 | Clarifiers, Carrousels / oxidation ditches, Biogas silos | 30 |
| Almena Wastewater Plant | Almena | — | KS0096768 | Jun 2027 | Uncovered lagoons | 9 |
| Attica Wastewater Plant | Attica | — | KS0116785 | Jun 2027 | Uncovered lagoons | 0 |
| Atwood, City Of | Atwood | — | KS0095265 | Jun 2027 | Uncovered lagoons | 3 |
| Belle Plaine WWTP | Belle Plaine | — | KS0094978 | Jun 2027 | Uncovered lagoons | 1 |
| Bucklin Sewer Treatment Plant C/o City Hall | Bucklin | — | KS0026166 | Jun 2027 | Aerated lagoons, Uncovered lagoons | 6 |
| Burden Wastewater Plant | Burden | — | KS0088455 | Jun 2027 | Uncovered lagoons | 0 |
| Dexter Wastewater Plant | Dexter | — | KS0022667 | Jun 2027 | Uncovered lagoons | 0 |
| Geuda Springs WWTP | Geuda Springs | — | KS0116807 | Jun 2027 | Uncovered lagoons | 15 |
| Hoisington Sewer Treatment Plant C/o City Hall | Hoisington | — | KS0022454 | Jun 2027 | Uncovered lagoons | 0 |
| Oxford Sewer Treatment Plant C/o City Hall | Oxford | — | KS0028011 | Jun 2027 | Uncovered lagoons | 1 |
| Saint John Sewer Treatment Plant C/o City Hall | Saint John | — | KS0027791 | Jun 2027 | Uncovered lagoons | 18 |
| Turon Waste Water Treatment Plant | Turon | — | KS0115070 | Jun 2027 | Uncovered lagoons | 3 |
| Walton Waste Water Treatment Facility C/o City Hall | Walton | — | KS0026140 | Jun 2027 | Uncovered lagoons | 0 |
| Windom Sewer Treatment Plant C/o City Hall | Windom | — | KS0051721 | Jun 2027 | Aerated lagoons, Uncovered lagoons | 18 |
| Fredonia Waste Water Treatment Plant C/o City Hall | Fredonia | 0.18 | KS0045985 | Jul 2027 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 17 |
| Basehor, City Of | Basehor | 0.78 | KS0094382 | Aug 2027 | Clarifiers, Carrousels / oxidation ditches | 3 |
| Augusta WWTP | Augusta | 0.99 | KS0094561 | Sep 2027 | Biogas balloons | 41 |
| Colby, City Of | Colby | 0.71 | KS0098698 | Sep 2027 | — | 9 |
| Lyons, City Of | Lyons | 0.36 | KS0022730 | Sep 2027 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 140 |
| Caldwell, City Of | Caldwell | — | KS0097811 | Sep 2027 | Uncovered lagoons | 2 |
| Peck Improvement District | Peck | — | KS0098256 | Sep 2027 | Uncovered lagoons | 12 |
| Stafford Wastewater Plant | Stafford | — | KS0028231 | Sep 2027 | Uncovered lagoons | 2 |
| Wichita #3 Wastewater Plant | Wichita | 0.98 | KS0095681 | Oct 2027 | Clarifiers, Carrousels / oxidation ditches, Biogas balloons | 5 |
| Kingman, City Of | Kingman | 0.7 | KS0095982 | Oct 2027 | Clarifiers, Aerated lagoons, Uncovered lagoons, Carrousels / oxidation ditches | 5 |
| City Of Pratt WTP | Pratt | 0.58 | KS0049751 | Oct 2027 | Clarifiers, Biogas silos | 2 |
| Maize, City Of | Maize | 0.46 | KS0092258 | Oct 2027 | Uncovered lagoons | 0 |
| Haysville, City Of | Haysville | 0.36 | KS0090921 | Oct 2027 | Clarifiers, Carrousels / oxidation ditches, Biogas silos | 19 |
| Ellinwood, City Of | Ellinwood | 0.13 | KS0090999 | Oct 2027 | Uncovered lagoons | 13 |
| Buhler, City Of | Buhler | 0.1 | KS0027553 | Oct 2027 | — | 18 |
| City Of Sedgewick - Kansas | Sedgwick | 0.08 | KS0081108 | Oct 2027 | Biogas silos | 1 |
| Claflin, City Of | Claflin | 0.02 | KS0026441 | Oct 2027 | — | 53 |
| Andale Sewer Treatment C/o City Hall | Andale | — | KS0092223 | Oct 2027 | Uncovered lagoons | 3 |
| Chisholm Creek Utility Authority | Park City | 1.4 | KS0089176 | Nov 2027 | Clarifiers | 89 |
| Halstead, City Of | Halstead | 0.14 | KS0026263 | Nov 2027 | — | 3 |
| Joco Blue River District #1 | Stanley | 5.14 | KS0092738 | Dec 2027 | Clarifiers, Aerated lagoons, Biogas balloons | 0 |
| Derby Wastewater Treatment | Derby | 2.19 | KS0050377 | Dec 2027 | Clarifiers, Carrousels / oxidation ditches | 61 |
| Valley Center, City Of | Valley Center | 0.3 | KS0099074 | Dec 2027 | Clarifiers, Carrousels / oxidation ditches | 0 |
| Norton, City Of | Norton | 0.19 | KS0097730 | Dec 2027 | Clarifiers | 2 |
| Medicine Lodge, City Of | Medicine Lodge | 0.16 | KS0097349 | Dec 2027 | Biogas silos | 6 |
| Alden Wastewater Plant | Alden | — | KS0051641 | Dec 2027 | Uncovered lagoons | 0 |
| Carbondale Waste Water C/o City Hall | Carbondale | — | KS0026174 | Dec 2027 | Aerated lagoons, Uncovered lagoons | 18 |
| Chase Sewer Treatment Plant C/o City Hall | Chase | — | KS0051667 | Dec 2027 | Uncovered lagoons | 0 |
| City Of Sterling WWTP | Sterling | — | KS0024783 | Dec 2027 | Uncovered lagoons | 20 |
| Haven Waste Water Treatment Facility | Haven | — | KS0116815 | Dec 2027 | Uncovered lagoons | 6 |
| Partridge, City Of | Partridge | — | KS0024619 | Dec 2027 | Uncovered lagoons | 0 |
| Preston, City Of | Preston | — | KS0098141 | Dec 2027 | Aerated lagoons, Uncovered lagoons | 22 |
| Pretty Prairie, City Of | Pretty Prairie | — | KS0098639 | Dec 2027 | Uncovered lagoons | 9 |
| Wilsey, City Of | Wilsey | — | KS0089907 | Dec 2027 | Uncovered lagoons | 4 |
Kansas permit renewals in 2027: 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.