Permits are required to build, erect, alter, replace, operate, use or maintain existing point sources of water pollution. A master general permit is one permit issued to multiple locations where activities are similar enough to be covered by a single set of requirements. However, most wastewater permits are site-specific, meaning one permit is issued to one location to reflect the unique nature of that specific wastewater, stormwater or the receiving water.
As a permit nears its expiration, it is redrafted, modified if needed and made available for public review and comment. The department reviews all public comments before making a decision about the permit.
- Applications in Process
- Draft permits on public notice
- Wastewater Variances
- Water-related Sites of Interest
If a permittee submits a timely and sufficient application to renew a permit and, through no fault of the permittee, the department is unable to issue the renewed permit before the current permit expires, Code of State Regulations 10 CSR 20-6.015(10)(C) allows the permit to be administratively continued. The terms and conditions of the expired permit remain in effect until the department issues or denies the permit renewal.
Currently Effective Permits
The following table contains electronic copies of all currently effective site-specific wastewater permits — not master general permits — issued by the department. This includes Concentrated Animal Feeding Operation (CAFO) permits, stormwater permits, wastewater permits and underground injection control well permits. These facilities have been authorized to either discharge to waters of the state, or to operate a no-discharge wastewater treatment facility. The department adds each site specific wastewater permit as it is issued.
To sort the table below by field, click on the column headings in the table. You can also enter criteria in the search boxes to search for a specific wastewater permit. If you cannot find the information you are looking for, please submit an Open Records/ Sunshine Law Request.
Permits issued before April 24, 2026, have been archived as per Missouri’s Website Content Standards. The Missouri Department of Natural Resources is aware that these permits do not meet current WCAG-Level AA accessibility standards. To request an accessible version, please fill out the department’s Report Accessibility Issues form and a member of our team will be in contact with you.
*This is an "and" type search. All search criteria you enter must be met for the permit to appear in the results. If the permit you are searching for is not listed in the results, try again using less criteria.
| Permit Number | Applicant/ Facility | County Sort descending | Effective Date | Expiration Date | Type |
|---|---|---|---|---|---|
| UI0000044 | Ameren Missouri-Sioux Energy Center | St. Charles | Operating | ||
| MO0000353 | Ameren Missouri-Sioux Energy Center | St. Charles | Operating | ||
| MO0121363 | Augusta Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0135208 | The Boeing Company (Tract 5) | St. Charles | Operating | ||
| MO0117188 | Cherokee Lakes Campground Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0120529 | Duckett Creek Sanitary District-Augusta Shores Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0116572 | Duckett Creek Sanitary District-Treatment Plant No. 2 | St. Charles | Operating | ||
| MO0129763 | Duckett Creek Sanitary District-Steven A. Rogers Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0132152 | Duckett Creek Sanitary District-Riverdale Subdivision Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0085472 | Duckett Creek Sanitary District-Treatment Plant No. 1 | St. Charles | Operating | ||
| MO0131300 | Duckett Creek Sanitary District-Wyndgate Subdivision Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0111627 | Duck Club Yacht Club Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0118559 | Orchard Farms Apartments Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0098060 | Fabick Foristell Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0119890 | Fiddlestix Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0116114 | Foristell Interim Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0100153 | General Motors Wentzville Assembly Center | St. Charles | Operating | ||
| MO0137642 | Huster Substation | St. Charles | Operating | ||
| MO0132373 | Missouri-American Water Co.-Jaxson Estates Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0129127 | Klondike Park Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0000299 | MEMC LLC | St. Charles | Operating | ||
| MO0129623 | O'Fallon Water Treatment Plant | St. Charles | Operating | ||
| MO0028720 | O'Fallon Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0107328 | Portage Des Sioux Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0087718 | Weldon Springs Drinking Water Treatment Plant | St. Charles | Operating | ||
| MO0058351 | St. Charles Missouri River Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0058343 | St. Charles Mississippi River Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0030970 | St. Peters-Spencer Creek Sewage Treatment Plant | St. Charles | Operating | ||
| MO0132349 | Stone Ridge Meadows Subdivision Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0107701 | U.S. Department of Energy-Weldon Spring Site | St. Charles | Operating | ||
| MO0093599 | Wentzville Water Reclamation Center | St. Charles | Operating | ||
| MO0126594 | St. Charles County Public Water Supply District No. 2-Boone Ridge Estates Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0057801 | St. Charles County Public Water Supply District No. 2-Castlegate Mobile Home Park and Providence Point Subdivision Wastewater Treatment Plant | St. Charles | Operating | ||
| MO0115461 | St. Charles County Public Water Supply District No. 2-New Melle Sewage Treatment Plant | St. Charles | Operating | ||
| MO0128252 | St. Charles County Public Water Supply District No. 2-Sycamore Creek Wastewater Treatment Facility | St. Charles | Operating | ||
| MO0139068 | Quarry Wine Garden Wastewater Treatment Facility, The | St. Charles | Operating | ||
| MOGSE0430 | Duckett Creek Sanitary District-Treatment Plant No. 4 | St. Charles | Construction | ||
| MOGSE0432 | Timber Trace Phase 5 | St. Charles | Construction | ||
| MOGSE0419 | New Town Merz Phase 1 and 2 | St. Charles | Construction | ||
| MOGSE0418 | Jaxson Estates Subdivision Plat 7 | St. Charles | Construction | ||
| MOGSE0417 | Brookside Lift Station | St. Charles | Construction | ||
| MOGSE0422 | Hauk Estates | St. Charles | Construction | ||
| MOGSE0406 | Creek Stone | St. Charles | Construction | ||
| CP0002284 | Duckett Creek Sanitary District-Riverdale Subdivision | St. Charles | Construction | ||
| MOGSE0390 | Willows, The | St. Charles | Construction | ||
| MOGSE0394 | Waterways of Lake St. Louis, The | St. Charles | Construction | ||
| MOGSE0370 | Riverpointe Phase 1 | St. Charles | Construction | ||
| MOGSE0339 | Villages at Huntleigh Ridge Phase 2, Stage 1 | St. Charles | Construction | ||
| MOGSE0322 | Aventura at Hawk Ridge | St. Charles | Construction | ||
| MOGSE0331 | Sutton Farm Phase 1A | St. Charles | Construction |