Permits Needed for a Domestic Wastewater Treatment Facility

If your business plans to perform backflow prevention assembly inspections, the inspection must be performed by an individual that has obtained a Backflow Prevention Assembly Tester Certification from the department. Certification must first be obtained at a school in the state through either the American Society of Sanitary Engineers or the American Backflow Prevention Association.

If your business is a no-discharge, private or domestic wastewater treatment facility with design flows of less than 50,000 gallons per day and land apply the wastewater, design flows of less than 50,000 gallons per day and plan to land apply the wastewater, you must obtain a Land Application of Domestic Wastewater MOG823000 master general permit.

Missouri collects water use data to better understand and manage the state’s water inventory.  A Major Water User is any person or entity that has the capability of producing a large amount of water (100,000 gallons per day or 70 gallons per minute or more) with all their combined wells or surface intakes. This water can be from either groundwater via a well, or surface water from a stream, river, lake, pond, or spring. 

Major Water Users are required by law to report the volume of water used by March 31 of the year following the usage.

If your business plans to operate a publicly owned treatment works facility that receives primarily domestic sewage from residential and commercial customers, you will need to apply for a Municipal Wastewater Operating Permit. Larger types of these facilities may also receive and treat wastewater from industrial facilities connected to the system.

If your business plans to operate a public water system that supplies drinking water to the public, you must obtain a Public Water Systems Permit to Dispense. A public water system has at least 15 service connections or serves at least 25 people at least 60 days out of the year. If your business plans to connect to a permitted public water system, then you are not required to obtain this permit.

If your business plans to construct a gravity sewer extension, force main and lift station, you may need a site-specific Sewer Extension Construction Permit. You may also need this permit if you plan to construct a non-earthen flow equalization storage basin at a lift station and an inline storage.

If your business has received a Site-Specific Wastewater Construction Permit and has completed the construction project, you will need to apply for a Site-Specific Wastewater Operating Permit before you may operate, use or maintain the existing point source of water pollution.

If you or your business has received a Wastewater Construction Permit for domestic wastewater discharges and have completed the construction project, you will need to apply for a Site-Specific Domestic Wastewater Operating Permit before you may operate, use or maintain the existing point source of water pollution. 

If your business plans to build, erect, alter or replace an existing or proposed point source, water contaminate source or wastewater treatment facility, you may need a Wastewater Construction Permit.