Water and wastewater professionals play a critical role in keeping Missourians healthy and our communities strong. These are the individuals that perform the daily operational activities at drinking water and wastewater treatment systems. Some are responsible for making sure there is an adequate supply of drinking water for their customers. Others protect public health by ensuring wastewater treatment facilities are discharging water in an environmental safe manner to Missouri's rivers, lakes and streams. Water and wastewater treatment plant and system operators often work behind the scenes during difficult times like drought, flooding, ice storms and other extreme weather events to ensure continuity of services to customers.

An operator certification program training and testing so that operators of drinking water, wastewater treatment and concentrated animal feeding operations possess the knowledge, skills and abilities to maintain certification and stay current with new regulations and emerging technologies. Through these efforts, consumers can be confident their water is safe to drink. Whether you are new to the industry or a veteran operator, the information below can answer many of your questions. 

Operator Certification Training
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Operator Certification Exams
Schedules, Math Formula Sheet and Descriptions
Operator Certification Training Voucher Program
Funding to help drinking water and wastewater operators obtain their certification
Forms and Publications
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Operator Certification Database Search
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Employment Opportunities for Certified Operators
Information on the job search for certified operators