The Missouri Department of Natural Resources describes a Public Water System business as:

A governmental unit, municipal or private corporation, association, partnership or individual engaged in furnishing water to the public for household or drinking purposes.

You may need some or all of the following permits for a Public Water System business:

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Drinking Water Operator Certification

If you would like to become a licensed drinking water treatment operator or a drinking water distribution operator, visit the department's Operator Certification webpage. The department can help provide you with training, examinations, funding vouchers to obtain certification and information about employment opportunities within Missouri. 

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Hazardous Waste/ Infectious Waste Transporter License

If you or your business plans to transport used oil, hazardous waste (combustible liquids, corrosives, poisons/ toxins, flammable liquids, flammable solids, PCB's) or infectious waste in Missouri, you are required to obtain a Hazardous Waste Transporter License.

Even though the request is approved by both Missouri Department of Transportation (MoDOT) and the Missouri Department of Natural Resources, you must apply for and renew the license through MoDOT. For more information, please visit MoDOT's Hazardous Waste Transport webpage.

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Major Water User Registration

If you or your business is capable of producing 100,000 gallons per day, or approximately 70 gallons per minute, including all wells or surface intakes, you are required to register with the department as a Major Water User. This registration is not for permitting purposes or to regulate water usage. Major water users are required by law to report the volume of water they used by March 31 of the year following the usage. Registration is required in order to submit reports.

The Major Water Users Program is established to simply gather water use data. Missouri collects water use data to better understand and manage the state’s water inventory. For more information, or to complete the online registration, please visit the Major Water Users webpage.

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Solid Waste Technician Certification

Missouri solid waste disposal areas and solid waste processing facilities designated by rule, must be operated under the direction of a certified solid waste technician. For more information, please visit the department's Solid Waste Technician Certification webpage.

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Water Exportation Permit

If you or your business want to withdraw water from any Missouri water resource for exportation outside of Missouri, you may be required to obtain a water exportation permit.