Wastewater Treatment Plant Operator/OIT

City of Pinole | Pinole, CA

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Posted Date 9/01/2021

WWTP Operator (Regular): $31.6715-38.4971

WWTP OIT (Temporary): $25.9587-27.2567
This listing closes on 9/30/2021 
These two classes receive general supervision from the Wastewater Treatment Plant Operations Supervisor. Wastewater Treatment Plant Operators provide direction and work instruction to Operators-in-Training. No direct supervision is provided to other staff.

Wastewater Treatment Plant Operator in Training (OIT) is the entry-level class in technical/operations class series. Initially, work is performed under the direct supervision of a supervisor or an experienced operator on an assigned shift. As experience is gained, the work is performed more independently and becomes more varied. This class is alternately-staffed with incumbents that may advance to Wastewater Treatment Plant Operator after gaining the required knowledge, skills, experience and certification and demonstrating performance at a full operational level.
Wastewater Treatment Plant Operator is the experienced and certificated level in this class series. Incumbents are expected to independently operate and perform routine preventive maintenance and repair in the treatment plant as well as standard laboratory analysis. This class is distinguished from Senior Wastewater Treatment Plant Operator in that the latter performs work involving scheduling, purchasing, inventory control and related activities in support of the supervisory and management activities of the plant.



Examples of duties include, but are not limited to:
  • Inspects plant operations on a regularly-scheduled basis; reads and records readings of pumps, chemical feed and other treatment, influent and effluent equipment.
  • Reviews and analyzes automated information and control system data and revises equipment settings as appropriate; notifies supervisor of unusual situations and makes inspections or corrects system problems as necessary.
  • Operates and performs preventive maintenance on a variety of treatment plant equipment, such as pumps, motors, analyzers, filters, chemical feed systems, digesters, bar screens and blowers.
  • Operates valves, pumps and automated controls to regulate the flow of wastewater through the plant.
  • Removes screenings and grit; cleans primary, secondary and other wastewater equipment and facilities.
  • Lubricates pumps, motors, chains, conveyors and other machinery and equipment.
  • Makes minor repairs to equipment; assists plant maintenance staff with major repair work.
  • Performs routine maintenance painting of machinery, structures, equipment and piping systems.
  • Collects wastewater, sludge and other samples from various phases of the treatment process; performs standard chemical and physical tests on these samples to ensure that the plant is operating effectively and that regulatory requirements are being met.
  • Uses a variety of hand and power tools and testing equipment.
  • Drives a motor vehicle to dispose of dewatered sludge.
  • Calibrates analyzers, adjusts chemical feed system and ensures adequate supply of chemicals to the plant.
  • Maintains accurate records of gauge and meter readings, chemical test results and work performed.


Minimum Qualifications


Education and Experience:
  • Wastewater Treatment Plant OIT: Equivalent to graduation from high school.
  • Wastewater Treatment Plant Operator: In addition to the above, training required by the California State Water Resources Control Board and one year of experience in operating and performing routine maintenance to facilities and equipment in a secondary wastewater treatment plant.
Licenses and Certifications: 
  • Must possess and maintain a valid California class C driver's license and a satisfactory driving record. Must obtain a class B driver's license prior to completion of the probationary period.
  • Possession of a Grade I Treatment Plant Operator certificate issued by the California State Water Resources Control Board is required for advancement to the Wastewater Treatment Plant Operator class.



Working Conditions: Works inside and outside. Must be available for regular standby assignments and work off-hours shifts and emergency overtime as required. Must be willing to work out of doors in all weather conditions and with exposure to potentially hazardous chemicals and conditions.
Physical Demands: Must possess strength, stamina and mobility to work in a standard wastewater treatment plant and laboratory setting, to lift and carry materials weighing up to 50 pounds and to use specialized test equipment, hand and power tools and instrumentation; stamina to work confined spaces, around machines and to climb and descend ladders; vision to read printed materials, charts and gauges and a computer screen; and hearing and speech to converse in person and over the telephone or radio.


Job Category
Local Government
Career Level
Entry Level

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