Plant Mechanic

Treatment Plant Mechanic

Industry: Municipal Government | Public Works | Water & Wastewater Treatment

Location: Tri-Cities, WA

We're seeking an experienced, hands-on Industrial Maintenance Mechanic / Wastewater Treatment Plant Mechanic to support mechanical maintenance, equipment reliability, and facility operations within a municipal wastewater treatment environment.

This position is responsible for troubleshooting, maintaining, repairing, and installing industrial mechanical equipment, pumps, motors, piping systems, and other critical infrastructure supporting wastewater treatment operations.

Ideal candidates bring strong mechanical aptitude and experience in industrial maintenance, pump repair, welding, fabrication, rigging, preventive maintenance, and mechanical troubleshooting.

Whether your background is in wastewater treatment, water utilities, industrial manufacturing, food processing, agriculture, chemical processing, or municipal maintenance, we'd love to connect!

Essential Duties & Responsibilities

• Perform preventive and corrective maintenance on wastewater treatment equipment, lift stations, pumps, motors, and mechanical systems.


• Troubleshoot, diagnose, repair, and replace mechanical equipment and components.


• Install, align, maintain, and repair pumps, valves, piping, bearings, gearboxes, and related machinery.


• Perform welding, fabrication, rigging, and mechanical installation activities.


• Inspect equipment, identify potential failures, and recommend corrective actions.


• Support equipment rebuilds, maintenance projects, and emergency repairs.


• Coordinate maintenance activities with plant operators, supervisors, and other technical personnel.


• Maintain accurate maintenance records, work orders, and equipment documentation.


• Follow established safety procedures, including Lockout/Tagout (LOTO), confined-space requirements, and proper use of personal protective equipment (PPE).


• Participate in scheduled emergency standby and after-hours maintenance as needed.

Relevant Skills & Experience

• Industrial maintenance and mechanical repair


• Wastewater or water treatment equipment


• Pumps, motors, valves, and piping systems


• Mechanical troubleshooting and equipment diagnostics


• Preventive and corrective maintenance


• Welding, fabrication, and equipment installation


• Rigging, hoisting, and crane operations


• Bearings, seals, gearboxes, and rotating equipment


• Industrial machinery and precision mechanical systems


• Hydraulic and pneumatic systems


• Equipment rebuilds and mechanical alignment


• Industrial safety and LOTO procedures

Candidates with mechanical maintenance experience in the following industries may be a strong fit:

• Municipal water and wastewater treatment


• Public works and utilities


• Industrial and manufacturing facilities


• Food and beverage processing


• Agricultural and chemical processing


• Pump and mechanical equipment maintenance


• Power generation and energy


• Industrial construction and mechanical contracting

Qualifications & Experience

• Approximately six years of experience in industrial mechanical maintenance, equipment repair, or related skilled trades.


• Experience installing, troubleshooting, repairing, and maintaining pumps, motors, and industrial mechanical equipment.


• Experience with welding, fabrication, rigging, and mechanical equipment installation.


• Technical degree, trade school certification, apprenticeship training, or equivalent practical experience.


• Strong mechanical aptitude, problem-solving skills, and commitment to workplace safety.


• Valid driver's license.


• Ability to obtain a Class A Commercial Driver's License (CDL) with tanker endorsement within two years of hire.


• Ability to obtain required crane operator, signal person, and rigger certifications within 18 months of hire.


• Availability for emergency standby, occasional weekends, and after-hours maintenance.

Preferred Qualifications

• Previous wastewater treatment plant or municipal utility maintenance experience.


• Class A CDL with tanker endorsement.


• National Commission for the Certification of Crane Operators (NCCCO) certification.


• Signal Person and Rigger certifications.


• Experience with lift stations, industrial pumps, and wastewater treatment equipment.

Ideal Candidate

The ideal candidate is a skilled, mechanically inclined maintenance professional who enjoys hands-on troubleshooting, equipment repair, and maintaining critical industrial infrastructure.

Whether you're an experienced Wastewater Mechanic, Industrial Maintenance Technician, Millwright, Pump Mechanic, or skilled trades professional with transferable mechanical experience, we'd love to learn more about your background.

Interested in exploring your next opportunity? We'd love to connect!

Equal Opportunity Employer

We are an equal opportunity employer and consider qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, genetic information, or any other characteristic protected by applicable federal, state, or local law.