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Permits issued before April 24, 2026, have been archived as per Missouri’s Website Content Standards.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 Sort descending Effective Date Expiration Date Type
MO0135950 Aerospace Composites Center LLC St. Louis Operating
MO0111805 Kiesel Co., The-Kiesel Marine Service St. Louis Operating
MO0114804 Spire Missouri Inc. St. Louis Operating
MO0003727 Missouri-American Water Co.-Central Water Treatment Plant St. Louis Operating
MO0132624 Missouri-American Water Co.-Homestead Estates Wastewater Treatment Facility St. Louis Operating
MO0003735 Missouri-American Water Co.-North Plant St. Louis Operating
MO0109975 Missouri Department of Conservation-Powder Valley Conservation Nature Center St. Louis Operating
MO0034509 Missouri Department of Natural Resources-Edmund A. Babler Memorial State Park Wastewater Treatment Facility St. Louis Operating
MO0122424 Metro West Fire Protection District Wastewater Treatment Facility St. Louis Operating
MO0126357 Missouri Petroleum Products Co. LLC St. Louis Operating
MO0120910 Motomart St. Louis Operating
MO0025178 Metropolitan St. Louis Sewer District-Bissell Point Wastewater Treatment Plant St. Louis Operating
MO0025160 Metropolitan St. Louis Sewer District-Coldwater Creek Wastewater Treatment Facility St. Louis Operating
MO0086126 Metropolitan St. Louis Sewer District-Fenton Wastewater Treatment Plant St. Louis Operating
MO0101362 Metropolitan St. Louis Sewer District-Grand Glaize Wastewater Treatment Facility St. Louis Operating
MO0025151 Metropolitan St. Louis Sewer District-Lemay Wastewater Treatment Plant St. Louis Operating
MO0127949 Metropolitan St. Louis Sewer District-Lower Meramec Wastewater Treatment Facility St. Louis Operating
MO0004391 Metropolitan St. Louis Sewer District-Missouri River Wastewater Treatment Plant St. Louis Operating
MO0113328 Municipal River Terminal St. Louis Operating
MO0127221 Oaks at Wildwood Wastewater Treatment Facility St. Louis Operating
MO0127329 St. Louis Airport Authority Bulk Fuel Storage Facility St. Louis Operating
MO0134651 Peerless Park I-44 Service Center St. Louis Operating
MO0001341 Reichold LLC 2 St. Louis Operating
MO0138371 Rock Hill Quarries Co. St. Louis Operating
MO0113743 Rockwood School District-LaSalle Springs Middle School Wastewater Treatment Facility St. Louis Operating
MO0113735 Rockwood School District-Rockwood Valley Middle School Wastewater Treatment Facility St. Louis Operating
MO0125407 Rockwood School District-Wildwood Middle School Wastewater Treatment Facility St. Louis Operating
MO0105473 Six Flags St. Louis St. Louis Operating
MO0111210 St. Louis Lambert International Airport St. Louis Operating
MO0123021 Valley Park TCE-Wainwright Operable Unit St. Louis Operating
MO0112585 Wildhorse Spring Farm Wastewater Treatment Plant St. Louis Operating
MOGSE0435 Pomme Creek Watershed St. Louis Construction
CP0002254 Metropolitan St. Louis Sewer District, Lower Meramec Wastewater Treatment Facility St. Louis Construction
MO0113131 Hidden Valley Golf Course Wastewater Treatment Plant St. Louis Operating
MO0139602 St. Louis Fuel Co. LLC Bulk Fuel Storage Facility St. Louis Operating
MO0122751 Missouri-American Water Co.-Pevely Farms Wastewater Treatment Facility St. Louis Operating
CP0002353 Missouri-American Water Co.-Homestead Estates Wastewater Treatment Facility St. Louis Construction
MOGC00638 Missouri Department of Natural Resources-Edmund Babler State Park Wastewater Treatment Facility St. Louis Construction
MOGC00725 MAWC Cahoon Lift Station Bypass Sewer St. Louis Construction
MOGC00767 Windhaven St. Louis Construction
MOGC00826 Bella Terra St. Louis Construction
MOGC00807 Pomme Creek Trunk Sewer Replacement St. Louis Construction
CP0002449 Wildhorse Spring Farm Owners’ Association Wastewater Treatment Facility St. Louis Construction
MO0112771 Bridgeton Landfill LLC St. Louis Operating
MOG500069 Chesterfield Sand Dock St. Louis Operating
MOGC01067 MAWC, Eureka WWTF St. Louis Construction
CP0002593 Rockwood Valley Middle School WWTP Upgrades St. Louis Construction
MO0126781 Crown Valley Winery Ste. Genevieve Operating
MO0116611 Bloomsdale Elementary School Wastewater Treatment Facility Ste. Genevieve Operating
MO0097110 Bloomsdale Water Pollution Control Plant Ste. Genevieve Operating