Water Treatment Plant Operator II

Recruitment #23-5033-004

Examination Date

Date & Time to be Announced 
Civil Service Board Office 
371 West Second Street, Lower Level 
Dayton, Ohio 45402 

*Certified candidates will be sent an email containing specific exam details at a later date.


Works with a crew as a leader in the operation of a water treatment plant; responsible for processing water to make it stable, potable and in compliance with regulatory standards.  Ensures that chemical feeding and mixing mechanisms are operating correctly, collects and analyzes water samples and reads and logs data from SCADA.  Performs minor repairs and/or maintenance on pumps and related equipment.

Minimum Qualifications

Graduation from high school (or G.E.D.).

Must have 12 months of actual hands-on experience in the specific operation and maintenance of Water Supply and Treatment or Wastewater Treatment equipment in one or more of the following area(s): daily plant operations, daily plant maintenance, plant laboratory work, sludge handling, military experience in potable water/wastewater treatment, troubleshooting plant operations, and/or industrial pre-treatment.


AT TIME OF APPOINTMENT, must possess and maintain an Ohio EPA Water Supply I certification until an Ohio EPA Water Supply II certification is obtained. Must meet the following requirements and maintain as a condition of continued employment.
  • Must obtain an interim Ohio EPA Laboratory Operational certification within 3 months of appointment.
  • Must pass the Ohio EPA Laboratory Operational certification survey within 12 months of appointment.
  • Must obtain an Ohio EPA Water Class II certification within 18 months of appointment.

License Requirements

Must possess a valid driver’s license at time of appointment and maintain thereafter as a term and condition of continued employment.

Promotional Qualifications

Must be a full-time permanent or part-time permanent employee in pay grade 118 (Wage) or below, pay grade 29 (Clerical) or below, or equivalent, and been employed for 6 consecutive months by the City of Dayton in a classified Civil Service position.  Identical scores will be broken by (1) seniority and (2) random selection method.

Open Competitive Applicants

Final appointment is contingent upon the applicant passing a job-related medical examination and providing documentary evidence of Employment Authorization and Identity. Identical scores will be broken by a random selection method.


Examination dates and times are subject to change. Calculators will be provided for the Civil Service examination. Applicants appearing on the Promotional eligible list shall be considered for appointment prior to those on the Open Competitive list. Applicants are responsible for providing all necessary employment dates, experience, training, or any other requirements as stated in the Exam Announcement, in order for their application to be considered for certification and admittance to the examination process.

Background Check 
A background investigation is required prior to employment. All candidates must pass any level of background investigation applicable to the position, including current city employees seeking transfer, promotion, demotion, etc. into a classified position. 

Drug and Nicotine Testing 
Final appointment is contingent upon the applicant passing a drug screen. Applicants offered employment with the City will be required to pass a nicotine screening. Newly hired employees must remain tobacco and nicotine free as a condition of continued employment. The Tobacco and Nicotine Free Hiring Policy does not apply to current City employees.