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.

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Permits issued before April 24, 2026, have been archived as per Missouri’s Website Content Standards.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.

Effective Date Between
Permit Number Applicant/ Facility County Effective Date Expiration Date Type
MO0118753 Smithfield Hog Production-Hedgewood Mercer Operating
MO0133264 St. Charles County Public Water Supply District No. 2-Providence Estates Wastewater Treatment Facility Warren Operating
MO0100731 St. Mary Sewage Treatment Facility Ste. Genevieve Operating
MO0110001 Bethel Wastewater Treatment Facility Shelby Operating
MO0136824 Case New Holland Industrial Reman Greene Operating
MO0001856 Doe Run Co., The-Fletcher Mine/ Mill Reynolds Operating
MO0130419 Ewert Brothers Compost Pad Site Clay Operating
MO0137111 Liberty Wastewater Treatment Facility Clay Operating
MO0030473 Lockwood Wastewater Treatment Facility Dade Operating
MO0023124 Louisiana Wastewater Treatment Plant Pike Operating
MO0139173 Martin Marietta-Randolph Mine Clay Operating
MO0056227 Missouri Department of Transportation-I-44 Conway Welcome Center Wastewater Treatment Facility Webster Operating
MO0033847 Missouri-American Water Co.-Monticello Lagoon Cole Operating
MO0128241 Schreiber Foods Inc. Barry Operating
MO0138835 Wa Ma Ha Wastewater Treatment Plant Camden Operating
MO0130010 Altenburg and Frohna Wastewater Treatment Facility Perry Operating
MO0119105 Berry Hill Estates Wastewater Treatment Facility Lafayette Operating
MO0123013 Big Island Sewer Co. Camden Operating
MO0134112 Boulders Wastewater Treatment Facility, The Taney Operating
MO0000337 Buick Resource Recycling Facility Iron Operating
MO0120081 Charleston Wastewater Treatment Plant Mississippi Operating
MO0138819 Elkhorn Elementary School Wastewater Treatment Facility Ray Operating
MO0104591 Eurofins EAG Agroscience LLC Boone Operating
MO0055590 Greenfield Sharpe Wastewater Treatment Facility Dade Operating
MO0055603 Greenfield Talburt Wastewater Treatment Facility Dade Operating
MO0133141 Greenwood Generating Station Jackson Operating
MO0117692 Hazmat Inc. Jackson Operating
MO0004880 Lake City Army Ammunition Plant Jackson Operating
MO0055425 Lake Lotawana Wastewater Treatment Plant No. 1 Jackson Operating
MO0135101 Legacy Park Subdivision Clay Operating
MO0132772 Long Creek Ranch Wastewater Treatment Plant Taney Operating
MO0026379 Odessa Northwest Wastewater Treatment Plant Lafayette Operating
MO0125920 Ozora Truck and Travel Service Wastewater Treatment Facility Ste. Genevieve Operating
MO0044121 Procter & Gamble Paper Products Co., The Cape Girardeau Operating
MO0105473 Six Flags St. Louis St. Louis Operating
MO0138959 TRW Automotive U.S. LLC (Former)-Ramsey Facility Groundwater Treatment System Franklin Operating
MO0116238 Twin Island Resort Wastewater Treatment Facility Taney Operating
MO0095176 Urbana Wastewater Treatment Facility Dallas Operating
MO0000043 Ameren Missouri-Rush Island Energy Center Jefferson Operating
MO0001716 BASF Corp.-Hannibal Plant Marion Operating
MO0055409 Farber Wastewater Treatment Facility Audrain Operating
MO0046655 Hardin Wastewater Treatment Facility Ray Operating
MO0099228 Lincoln County Public Water Supply District No. 1-Green Acres Wastewater Treatment Facility Lincoln Operating
MO0127698 Lincoln County Public Water Supply District No. 1-White Fences Subdivision Wastewater Treatment Facility Lincoln Operating
MO0040843 Marshfield Wastewater Treatment Facility Webster Operating
MO0036242 Mexico Wastewater Treatment Plant Audrain Operating
MO0004588 Missouri City Power Station Clay Operating
MO0109941 Missouri Department of Natural Resources-Bennett Spring State Park Dallas Operating
MO0132373 Missouri-American Water Co.-Jaxson Estates Wastewater Treatment Facility St. Charles Operating
MO0041467 Public Water Supply District No. 1 of Gasconade County Gasconade Operating