Wastewater Treatment System Mechanic - Journey; LA--26E Cerritos
Listed on 2026-07-17
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Trades / Skilled Labor
Maintenance Technician / Mechanic
Wastewater Treatment System Mechanic
- Journey (LA-171-26E) Cerritos
- LA County Sanitation District
- Journey Level)
The Sanitation Districts clean the wastewater of over 5 million people and turn it into resources 24 hours a day, 7 days a week, 365 days a year. Through the operation of 11 wastewater treatment facilities, approximately 510 million gallons per day of wastewater are treated, with 165 MGD available for reuse. All of the water reclamation plants are strategically located throughout the County to maximize water reuse and to easily return the cleaned water to local waterways, storage reservoirs, or the Pacific Ocean.
We are now recruiting for a skilled Wastewater Treatment System Mechanic at our Los Coyotes Water Reclamation Plant in Cerritos. The essential functions of this position are to perform more skilled preventive repair and maintenance of stationary equipment and machinery in a wastewater treatment facility. Specialized mechanical machinery used includes, but is not limited to, turbines, boilers, stationary and mobile engines, blowers, pumps such as gear, vane, centrifugal, vertical turbine, reciprocating, air compressors, gearboxes, and hydraulic systems.
This position offers a 9/80 work schedule:
Monday through Thursday from 6:30 a.m. to 4:00 p.m., with alternating Fridays worked from 6:30 a.m. to 3:00 p.m. After‑hours, overtime, and weekend callbacks may be required. This is an excellent career opportunity with comprehensive benefits, including medical, dental, and retirement plans, as well as paid vacation, sick leave, and holidays.
Candidates must possess a valid California Class C driver’s license; and four years performing directly related skilled maintenance or craft duties involving the repair and overhaul of a variety of comparable machinery and equipment. Twelve semester units of college coursework or completion of one year of a two‑year trade school in a mechanical technology or closely related program may be substituted for one year of the required experience;
or graduation from a two‑year trade school may be substituted for two years of the required experience.
The selected candidate must be able to obtain and maintain a valid Class A or B California driver’s license within six (6) months of appointment. A crane certification from the State of California is also required. Crane certification involves attendance at training sessions, passing written and/or practical examinations, and providing annual evidence of medical fitness. This training will be provided by the Districts and is mandatory for the individual selected for this position.
In addition, the selected candidate must be medically cleared to wear a respiratory protection device and pass a pulmonary function test annually. Incumbents must not wear contact lenses nor have facial hair that would prevent the safe and proper fit of a self‑contained breathing apparatus.
The competitive selection process may cover:
Knowledge of methods, materials, and tools used in the repair of large and complex mechanical equipment such as engines, compressors and pumps and their operation; use of precision test equipment and tools; hand tools, welding and cutting equipment, pipe cutters and threaders, valve grinders and various saws; occupational hazards and safety regulations of the trade.
The ability to diagnose and repair a wide variety of mechanical equipment; read, interpret and work from repair manuals and specifications; use specialized tools and equipment; and instruct apprentices in trade techniques.
ADDITIONAL INFORMATIONThis posting will remain open until vacancy is filled and is subject to closure without notice.
SELECTION PROCESS- All applications will be reviewed to determine if the conditions and qualifications for testing are met.
- The selection process will consist of a written test weighted at 50% and an interview weighted at 50%. Both the written test and the interview will be conducted in person.
- Candidates must receive a qualifying…
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