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Wastewater Operator Trainee Jobs (NOW HIRING)

Plant Operator II

Springfield, MO · On-site

$39K - $64K/yr

Plant Operator Trainee Experience, Education, and Training * At least six months of experience in the operation of an activated sludge wastewater treatment plant, or in a closely related area, such ...

Oversees and trains Operator Trainees, when required; Reviews and maintains records and reports ... Wastewater Department - drives and operates sludge truck Performs other related duties, as required.

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Wastewater Operator Trainee information

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$14

$25

$39

How much do wastewater operator trainee jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for wastewater operator trainee in the United States is $25.59, according to ZipRecruiter salary data. Most workers in this role earn between $20.19 and $29.33 per hour, depending on experience, location, and employer.

What is the role of a trainee operator?

A wastewater operator trainee assists experienced operators in maintaining and operating wastewater treatment equipment, monitoring system performance, and ensuring compliance with environmental regulations. They typically learn to perform tests, record data, and may work under supervision until they gain necessary certifications. The role provides hands-on experience in the treatment process and equipment operation.

What are the key skills and qualifications needed to thrive as a Wastewater Operator Trainee, and why are they important?

To thrive as a Wastewater Operator Trainee, you need a basic understanding of water treatment processes, mechanical aptitude, and a high school diploma or equivalent. Familiarity with monitoring equipment, SCADA systems, and the pursuit of relevant state operator certifications are typically expected. Attention to detail, problem-solving abilities, and strong teamwork skills help trainees excel in this role. These competencies ensure safe and efficient facility operations, compliance with regulations, and protection of public health and the environment.

What are some common challenges faced by Wastewater Operator Trainees during their initial training period?

As a Wastewater Operator Trainee, one common challenge is adapting to the technical complexity of plant operations, including learning to monitor and maintain various mechanical and chemical systems. Trainees often need to quickly become familiar with safety protocols, regulatory requirements, and emergency response procedures. Additionally, the work frequently involves shift schedules, including nights and weekends, which can require flexibility. However, with the guidance of experienced operators and structured on-the-job training, most trainees build confidence and proficiency over time.

What is the difference between Wastewater Operator Trainee vs Wastewater Operator?

AspectWastewater Operator TraineeWastewater Operator
CertificationsTypically requires a high school diploma; may need a state-issued trainee or apprentice licenseRequires a valid wastewater operator license or certification
Work EnvironmentSupervised, learning environment at treatment plants or pumping stationsFull responsibility for operating and maintaining wastewater treatment equipment
Job ResponsibilitiesAssisting with daily operations, learning procedures, performing basic tasksManaging treatment processes, troubleshooting, and ensuring regulatory compliance

The main difference between a Wastewater Operator Trainee and a Wastewater Operator is experience and certification level. Trainees are in learning roles, often supervised, while Wastewater Operators are fully responsible for plant operations with proper licensing. Trainees focus on gaining skills, whereas Operators perform independent work to maintain wastewater treatment systems.

What are Wastewater Operator Trainees?

Wastewater Operator Trainees are entry-level professionals who assist in the operation and maintenance of wastewater treatment facilities. They work under the supervision of experienced operators to learn how to monitor equipment, collect samples, and ensure that water treatment processes comply with environmental regulations. As trainees, they gain hands-on experience and knowledge required to obtain certification and advance to higher-level operator positions. Their work helps protect public health and the environment by ensuring wastewater is properly treated before being released.
More about Wastewater Operator Trainee jobs
What cities are hiring for Wastewater Operator Trainee jobs? Cities with the most Wastewater Operator Trainee job openings:
What states have the most Wastewater Operator Trainee jobs? States with the most job openings for Wastewater Operator Trainee jobs include:
Infographic showing various Wastewater Operator Trainee job openings in the United States as of May 2026, with employment types broken down into 96% Full Time, 2% Part Time, and 2% Nights. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution, with an average salary of $53,224 per year, or $25.6 per hour.

Wastewater Operator I/II/III - Environmental Services Department

City of San Jose Environmental Services Department

San Jose, CA

$92K - $115K/yr

Full-time

Posted 13 days ago


Job description

The Environmental Services Department (ESD) is a national leader in pollution prevention, watershed protection, utility service provision, and climate action. Together, ESD employees positively impact every resident and business in San Jose. Our department is an exceptional place to start or grow your career.

We have a supportive leadership team, numerous professional growth opportunities, and an inclusive workplace culture that is welcoming of your talents! To learn more about ESD, follow @sjenvironment on X, Facebook and Instagram and San Jose Environmental Services on LinkedIn. About the Division The San José - Santa Clara Regional Wastewater Facility (RWF) is one of the largest advanced wastewater treatment facilities in the nation and treats water from homes and businesses in the cities of San José, Santa Clara, Milpitas, Campbell, Cupertino, Los Gatos, Monte Sereno, Saratoga, and unincorporated areas within Santa Clara County.

The RWF serves a population of over 1.4 million people and has the capacity to treat 167 million gallons of wastewater per day. For more information visit our website at https://www.sanjoseca.gov/your-government/departments-offices/environmental-services/water-utilities/regional-wastewater-facility. Position Duties The Environmental Services Department is currently seeking to fill multiple full-time Wastewater Operator I/II/III vacancies at the San José - Santa Clara Regional Wastewater Facility (RWF).

Job Classification Overview - Wastewater Operator I/II/III Under general supervision, performs a variety of work of routine difficulty involved in operation of the San José/Santa Clara Regional Wastewater Facility. Typical duties include but are not limited to: Inspects, operates, adjusts and maintains equipment in one or more areas of the wastewater treatment plant sections. Operates pumps, valves, motors, blowers, internal combustion engines, vehicles, and other related wastewater treatment process equipment.

Reads and interprets SCADA (supervisory control and data acquisition) system, gauges, dials and other process instruments; recognizes and diagnoses alarms and other warning indicators and makes necessary process and equipment adjustments to maintain process integrity. Maintains records of instrument readings and performs process computations and graphing as required. Performs routine laboratory tests used in sewage treatment process; takes samples and performs various simple tests for process control.

Removes solids, pollutants, and harmful bacteria from wastewater to make it less objectionable and more stable. Reviews and provides improvements to wastewater facility SOP and processes. Accurately completes work orders for use in the Computerized Maintenance Management System (CMMS).

Other duties as assigned. Assignments may be made to any shift in an around-the-clock operation, and incumbents must also be available for work on Saturday, Sunday, and holidays. This recruitment may be used to fill multiple positions in this, or other divisions or departments.

If you are interested in employment in this classification, you should apply to ensure you are considered for additional opportunities that may utilize the applicants from this recruitment. Salary Ranges Actual salary shall be determined by the final candidates’ qualifications and experience. Salary ranges for these classifications are: Wastewater Operator I: $92,747.20-$115,502.40 Wastewater Operator II: $98,384.00-$122,865.60 Wastewater Operator III: $104,166.40-$130,124.80 Minimum Qualifications Wastewater Operator I Education: Successful completion of high school, General Educational Development (G.E.D.) Certificate, or California Proficiency Certificate.

Experience: One (1) year experience as a Wastewater Operator Trainee with the City of San José or one (1) year experience at a Wastewater treatment facility with similar processes. Certifications: Possession of a valid California State Water Resources Control Board (SWRCB) Operator Grade I or higher Certificate. Required Licensing: Possession of a valid State of California Class C driver's license.

If selected, the Conditional Offer of Employment may be contingent upon you providing proof of a valid State of California driver’s license, and an assessment of your California DMV Employer Pull Notice (EPN) as per the DMV Release of Driver Record Information form. Failure to pass the DMV Pull Notice assessment will deem you ineligible for employment. Physical Requirement: This classification requires a pre-employment respiratory physical exam.

Wastewater Operator II Education: Successful completion of high school, General Educational Development (G.E.D.) Certificate, or California Proficiency Certificate. Experience: One (1) year experience as a Wastewater Operator I with the City of San José or one (1) year experience at a Wastewater treatment facility with similar processes while holding a valid SWRCB Wastewater Grade I or higher license. Certifications: Possession of a valid California State Water Resources Control Board (SWRCB) Operator Grade II or higher Certificate.

Required Licensing: Possession of a valid State of California Class C driver's license. If selected, the Conditional Offer of Employment may be contingent upon you providing proof of a valid State of California driver’s license, and an assessment of your California DMV Employer Pull Notice (EPN) as per the DMV Release of Driver Record Information form. Failure to pass the DMV Pull Notice assessment will deem you ineligible for employment.

Physical Requirement: This classification requires a pre-employment respiratory physical exam. Wastewater Operator III Education: Successful completion of high school, General Educational Development (G.E.D.) Certificate, or California Proficiency Certificate. Experience: One (1) year experience as a Wastewater Operator II with the City of San José or two (2) years’ experience at a Wastewater treatment facility with similar processes while holding a valid SWRCB Wastewater Grade II or higher license.

Certifications: Possession of a valid California State Water Resources Control Board (SWRCB) Operator Grade III or higher Certificate. Required Licensing: Possession of a valid State of California Class C driver's license. If selected, the Conditional Offer of Employment may be contingent upon you providing proof of a valid State of California driver’s license, and an assessment of your California DMV Employer Pull Notice (EPN) as per the DMV Release of Driver Record Information form.

Failure to pass the DMV Pull Notice assessment will deem you ineligible for employment. Physical Requirement: This classification requires a pre-employment respiratory physical exam. For the complete physical/environmental elements, please go to the classification specifications here: Wastewater Operator I/II/III Other Qualifications The ideal candidate will possess the following competencies, as demonstrated in past and current employment history.

Job Expertise – Demonstrates knowledge of and experience with applicable professional/technical principles and practices, Citywide and departmental procedures/policies and federal and state rules and regulations. Knowledge of wastewater treatment processes. Knowledge of the use and purpose, and the ability to use common hand tools and mechanical equipment.

Knowledge of general procedures to be used for emergencies and malfunctions. Knowledge of, and ability to, operate pumps and other equipment in response to system demands. Knowledge of city, state, and federal environmental quality standards.

Knowledge of general lock out tag out principles. Ability to perform a variety of operation duties and operate a variety of wastewater treatment facility equipment. Communication Skills - Effectively conveys information and expresses thoughts and facts clearly, orally and in writing; demonstrates effective use of listening skills; displays openness to other people's ideas and thoughts.

Computer Skills - Experienced with common business computer applications including but not limited to: MS Outlook, MS Word, MS Excel. Flexibility - Makes effective decisions and achieves desired results in the midst of major changes in responsibilities, work processes, timeframes, performance expectations, organizational culture, or work environment. Initiative - Exhibits resourceful behaviors toward meeting job objectives; anticipates problems, is proactive, and avoids difficulties by planning ahead; displays willingness to assume extra responsibility and challenges; pursues continuing education opportunities that promotes job performance Problem Solving - Approaches a situation or problem by defining the problem or issue; determines the significance of problem; collects information; uses logic and intuition to arrive at decisions or solutions to problems that achieve the desired outcome.

Reliability - Completes quality work assignments in a timely and efficient manner; fulfills responsibilities and maintains confidentiality as appropriate. Teamwork and Interpersonal Skills - Develops effective relationships with co-workers and supervisors by helping others accomplish tasks and using collaboration and conflict resolution skills. Selection Process The selection process will consist of an evaluation of the applicant's training and experience based on the application and responses to all the job specific questions.

You must answer all questions to be considered or your application may be deemed incomplete and withheld from further consideration. Only those candidates whose backgrounds best match the position will be invited to proceed in the selection process. Additional phases of the selection process will consist of one or more interviews.

If you have questions about the duties of these positions, the selection or hiring processes, please contact Adrienne.Pea@sanjoseca.gov. Additional Information: Employment Eligibility: Federal law requires all employees to provide verification of their eligibility to work in this country. Please be informed that the City of San Jose will NOT sponsor, represent or sign any documents related to visa applications/transfers for H1-B or any other type of visa which requires an employer application.

You must answer all job-specific questions to be considered for this vacancy or your application will be deemed incomplete and withheld from further consideration. Applicants are expected to write their own essays/responses. Please note that applications are currently not accepted through CalOpps or any other third party job board application system.

This recruitment may be used to fill multiple positions in this, or other divisions or departments. If you are interested in employment in this classification, you should apply to ensure you are considered for additional opportunities that may utilize the applicants from this recruitment. Please allow adequate time to complete the application and submit before the deadline or the system may not save your application.

If your online application was successfully submitted, you will receive an automatic confirmation email to the email address you provided. IF YOU DO NOT RECEIVE THE CONFIRMATION, please email CityCareers@sanjoseca.gov and we will research the status of your application. AI and the Hiring Process We recognize that Artificial Intelligence (AI) is becoming part of daily life and can be a valuable tool for learning, research, and professional growth.

We encourage candidates to use AI responsibly as a support in preparing application materials, live assessments, and interviews. However, we value authenticity, accuracy and truthfulness. Application responses and interview answers must reflect your own knowledge, skills, and experiences.

While AI can supplement preparation, it cannot replace the originality and judgment we look for in our employees. This ensures fairness, transparency, and equity for all applicants in the hiring process. How to Apply The requisition # for this job posting is 202601571.

To view the full job announcement and apply for this position, please go to: www.sanjoseca.gov/citycareers PLEASE NOTE: YOU MUST APPLY & SUBMIT YOUR JOB APPLICATION AT www.sanjoseca.gov/citycareers IN ORDER TO BE CONSIDERED FOR A CITY OF SAN JOSE JOB OPPORTUNITY. If you have questions about the duties of this position, the selection or hiring processes, please contact Adrienne Pea at Adrienne.Pea@sanjoseca.gov.