Applying To: Water Treatment Plant Supervisor I

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Dear applicants, in order to help prevent the spread of the COVID-19 virus, the Recruitment and Examination Section is suspending all written tests, performance tests and oral interviews until further notice. These examination components are being replaced with experience and training evaluations, which do not require physical contact. Please fully describe all of your qualifying education, training and experience on your applications. Thank you. The safety of all of our staff and applicants is our priority as we continue with our efforts to conduct merit based testing for staffing the City's Civil Service.


  • Minimum: $39,936.00
  • Maximum: $68,536.00

Nature of Work

Incumbents in this position are responsible for supervising Water Treatment Plant Operators and other maintenance personnel and performing duties to ensure the operation and maintenance of the filter plant, coagulant house and other process sites in order to purify drinking water for the City of St. Louis and surrounding communities.

For an additional description of this position, please refer to the classification specification for Water Treatment Plant Supervisor I

Minimum Qualifications

Three years of experience in the operation and maintenance of a surface water treatment facility. Experience should include utilizing computer databases and SCADA programs; reading and interpreting equipment diagrams and construction drawings; some experience with oxy-acetylene and arc welding, and the use of hand tools.  OR an equivalent combination of training and experience.

License:  Must possess and maintain a valid Missouri driver’s license while employed by the City of St. Louis.  Must possess a valid driver's license at the time of filing the application and be able to present it upon request.  Please note type of license, number, class and expiration date on the Employment Application. 

Certification:  Must possess a Class C Water Supply Operator Certification issued by the Missouri Department of Natural Resources.  Proof of Class C Certification must be presented upon request.

When completing the application, please be as thorough as possible when describing your experience, training and education relating to this position. Your experience and training will be used to determine whether you meet the entrance requirements for this position and to compute your Experience and Training evaluation. Applicants must provide explanation for all changes in employment and any gaps in their employment history on the application. Incomplete and/or carelessly completed applications will not be considered.  Resumes will not be accepted as a substitute to a fully completed application.

Last Date For Filing Application Is February 26, 2021

Examination Components and Their Weights

  • Experience and Training: 100%
  • Service Rating: Pass/Fail

PROM 3217
February 10, 2021

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