Maintenance Mechanic I - Sr.

***This position is scheduled to receive a 5% Cost of Living Adjustment (COLA) on July 1, 2025***

Under the direction of the Plant Maintenance Supervisor, assists with the operation and maintenance of the District's Wastewater Treatment Plants.
Maintenance Mechanic I: Performs basic scheduled maintenance, repairs, and rebuilds to wastewater treatment plant mechanical equipment and related facilities. This is the entry-level classification of the Maintenance Mechanic series. ($34.13 to $43.69 per hour, DOQ)

Maintenance Mechanic II: Performs scheduled and unscheduled maintenance, repairs, and major rebuilds to wastewater treatment plant mechanical equipment and related facilities. ($38.39 to $49.14 per hour, DOQ)

Maintenance Mechanic III: Performs complex scheduled and unscheduled maintenance, repairs, and major rebuilds to wastewater treatment plant mechanical equipment and related facilities. ($43.21 to $55.31 per hour, DOQ)

Sr. Maintenance Mechanic: Performs the most complex scheduled and unscheduled maintenance, repairs, and major rebuilds to wastewater treatment plant mechanical equipment and related facilities. Lead responsibilities of lower-level staff, as assigned. ($48.60 to $62.21 per hour, DOQ)

The duties listed below are intended only as illustrations of the various types of work that may be performed. The omission of specific duties does not exclude them from the position .

Maintenance Mechanic I:

1. Performs a variety of maintenance and manual labor tasks
2. Identifies source(s) of existing or potential mechanical problems with systems, techniques, parts and equipment and efficiently works to correct, troubleshoot and diagnose engine malfunction.
3. Performs basic preventative maintenance and repair operations on mobile and/or stationary equipment, including, but not limited to, boilers, pumps, air and gas compressors, and stationary engines.
4. Writes requests for purchases for review by supervisor.
5. Maintains complete and accurate records of work performed.
6. Inspects and reviews finished work product; interprets manuals, drawings and diagrams.
7. Uses precision measuring devices, tests instruments and various hand tools.
8. Recommends parts for warehousing, tools, and machinery for budget purchases.
9. Stores and properly cares for all District tools.
10. Works efficiently and effectively with all other departments to achieve the most economical and satisfactory resolution to operational concerns.
11. Responds to emergencies during and afterwork hours consistent with the Incident Command System (ICS), Standardized Emergency Management System (SEMS), and National Incident Management Systems (NIMS).
12. Complies with Districts safety rules and regulations.
13. Performs other related duties as assigned.

Maintenance Mechanic II:

1. Performs a variety of skilled maintenance and manual labor tasks
2. Identifies source(s) of existing or potential mechanical problems with systems, techniques, parts and equipment and efficiently works to correct as appropriate, troubleshoot and diagnose engine malfunction.
3. Performs difficult preventative maintenance and repair operations on mobile and/or stationary equipment, including, but not limited to, boilers, pumps, air and gas compressors, and stationary engines.
4. Writes requests for purchases for review by supervisor.
5. Maintains complete and accurate records of work performed.
6. Inspects and reviews finished work product; interprets manuals, drawings and diagrams.
7. Uses precision measuring devices, tests instruments and various hand tools.
8. Recommends parts for warehousing, tools, and machinery for budget purchases.
9. Stores and properly cares for all District tools.
10. Works efficiently and effectively with all other departments to achieve the most economical and satisfactory resolution to operational concerns.
11. Responds to emergencies during and afterwork hours consistent with the Incident Command System (ICS), Standardized Emergency Management System (SEMS), and National Incident Management Systems (NIMS).
12. Complies with Districts safety rules and regulations.
13. Performs other related duties as assigned.

Maintenance Mechanic III:

1. Works with and trains maintenance personnel to perform inspections, checks, tests, services, routine maintenance tasks, repairs and rebuilds to pumps, motors, drive units, valves, chains, belts, and related mechanical equipment, tanks, buildings and structures
2. Performs a variety of skilled maintenance tasks.
3. Coordinates and performs work associated with preventative maintenance program.
4. Prepares purchase requests, compares pricing, orders and expedites needed parts and materials.
5. Assists in budget preparation with recommendations to include personnel, tools, equipment, contract services, warehoused spare parts and future plant capital expenditures for equipment and required repairs.
6. Safely, effectively and efficiently operates and trains other to operate District gas- and diesel-powered vehicles to include pick-up trucks, dump truck, forklift, front loader, tractor-trailer units and various types or portable equipment.
7. Responds to emergencies during and afterwork hours consistent with the Incident Command System (ICS), Standardized Emergency Management System (SEMS), and National Incident Management Systems (NIMS).
8. Disassembles, inspects, determines damage, cause of damage and required parts and recommend methods of repair.
9. Stores and properly cares for all District tools.
10. Works efficiently and effectively with all other departments to achieve the most economical and satisfactory resolution to operational concerns.
11. Reads and interprets plant mechanical piping and distribution plans; instructs and directs assigned personnel in the safe and proper methods of equipment troubleshooting.
12. Maintains records of plant equipment use, maintenance and repair records.
13. Performs routine maintenance and repairs on potable pumps, welder, electric cards and District vehicles.
14. Performs other related duties as assigned.

Sr. Maintenance Mechanic:

1. As assigned, leads the work of lower-level Maintenance Mechanic staff.
2. Works with and trains maintenance personnel to perform inspections, checks, tests, services, routine maintenance tasks, repairs and rebuilds to pumps, motors, drive units, valves, chains, belts, and related mechanical equipment, tanks, buildings and structures
3. Performs a variety of skilled maintenance tasks.
4. Coordinates and performs work associated with the preventative maintenance program.
5. Prepares purchase requests, compares pricing, orders and expedites needed parts and materials.
6. Assists in budget preparation with recommendations to include personnel, tools, equipment, contract services, warehoused spare parts and future plant capital expenditures for equipment and required repairs.
7. Safely, effectively and efficiently operates and trains other to operate District gas- and diesel-powered vehicles to include pick-up trucks, dump truck, forklift, front loader, tractor-trailer units and various types or portable equipment.
8. Responds to emergencies during and afterwork hours consistent with the Incident Command System (ICS), Standardized Emergency Management System (SEMS), and National Incident Management Systems (NIMS).
9. Disassembles, inspects, determines damage, cause of damage and required parts and recommend methods of repair.
10. Stores and properly cares for all District tools.
11. Works efficiently and effectively with all other departments to achieve the most economical and satisfactory resolution to operational concerns.
12. Reads and interprets plant mechanical piping and distribution plans; instructs and directs assigned personnel in the safe and proper methods of equipment troubleshooting.
13. Maintains records of plant equipment use, maintenance and repair records.
14. Performs routine maintenance and repairs on potable pumps, welder, electric cards and District vehicles.
15. Performs other related duties as assigned.

One single guiding principle in every search for new Moulton Niguel Water District team members is identifying those applicants that are humble, motivated, and hard-working. Moulton Niguel expects new team members to uphold its workplace culture of an environment in which all employees interact with co-workers, supervisors, and the public in a positive, cooperative, and supportive manner.
Any combination of education and experience that would likely provide the required knowledge, skills and abilities (KSAs) may be qualifying. A typical way to obtain the KSAs is:

Maintenance Mechanic I:

1. High school diploma or equivalent certificate supplemented by specialized training in wastewater treatment plant operations or related field.
2. One (1) year experience in the maintenance, repair, rebuild and service of mechanical equipment, control valves, pumps, motors, tanks and piping systems.
3. Ability to take direction and follow through on ones own to complete assigned duties.
4. Knowledge of the safe and proper operation of various types of hand and power tools, gas and electrical cutting and welding equipment, precision measuring devices, test meters and gauges; advance methods of troubleshooting, diagnosis and techniques of repairing and rebuilding equipment; and safe shop practices.
5. Certified as a Vertical Pump Technician or ability to obtain within 18 months of job placement.
6. Must possess a valid California drivers license and maintain a safe driving record.

Maintenance Mechanic II:

1. High school diploma or equivalent certificate supplemented by specialized training in wastewater treatment plant operations or related field.
2. Two (2) years' experience in the maintenance, repair, rebuild and service of mechanical equipment, control valves, pumps, motors, tanks and piping systems.
3. Ability to take direction and follow through on ones own to complete assigned duties.
4. Thorough knowledge of the safe and proper operation of various types of hand and power tools, gas and electrical cutting and welding equipment, precision measuring devices, test meters and gauges; advance methods of troubleshooting, diagnosis and techniques of repairing and rebuilding equipment; and safe shop practices.
5. Certified as a Vertical Pump Technician or ability to obtain within 18 months of job placement.
6. Must possess a valid California drivers license and maintain a safe driving record.

Maintenance Mechanic III:

1. High school diploma or equivalent certificate supplemented by specialized training in wastewater treatment plant operations or related field.
2. Minimum of three (3) years' experience in the maintenance, repair, rebuild and service of mechanical equipment, control valves, pumps, motors, tanks and piping systems found in a plant.
3. Ability to take direction and follow through on ones own to complete assigned duties.
4. Thorough knowledge of the safe and proper operation of various types of hand and power tools, gas and electrical cutting and welding equipment, precision measuring devices, test meters and gauges; advance methods of troubleshooting, diagnosing and techniques of repairing and rebuilding equipment; and safe shop practices.
5. Certified as a Vertical Pump Technician or ability to obtain within 18 months of job placement.
6. Must possess a valid California drivers license and maintain a safe driving record.
7. Certifications from CWEA in Mechanical Technology are highly desired.

Sr. Maintenance Mechanic:

1. High school diploma or equivalent certificate supplemented by specialized training in wastewater treatment plant operations or related field.
2. Minimum of three (3) years' experience in the maintenance, repair, rebuild and service of mechanical equipment, control valves, pumps, motors, tanks and piping systems found in a plant.
3. Ability to take direction and follow through on ones own to complete assigned duties.
4. Thorough knowledge of the safe and proper operation of various types of hand and power tools, gas and electrical cutting and welding equipment, precision measuring devices, test meters and gauges; advance methods of troubleshooting, diagnosing and techniques of repairing and rebuilding equipment; and safe shop practices.
5. Possession of Laser Alignment Certificate or ability to obtain within 18 months of job placement.
6. Must possess a valid California drivers license and maintain a safe driving record.
7. Certification from CWEA in Mechanical Technology.

Position requires the ability to work in a field environment, in confined spaces, and around machinery; ability to frequently walk/stand for extended time periods and to climb/descend ladders; must have vision and finger dexterity for eye-hand coordination to access, enter and retrieve data using a computer keyboard or calculator and to operate a variety of hand and power tools; ability to lift, carry, push, and pull equipment and parts weighing up to 80 pounds with the use of proper equipment; ability to bend, stoop, kneel, reach and climb to perform work and inspect work sites; must have hearing and speech sufficient to communicate in person and over the telephone or radio; ability to work in an environment that could produce exposure to dust, dirt, significant temperature changes and chemicals such as, but not limited to, polymer, ferric chloride, sodium hypochlorite, sodium bisulfite, liquid ammonium, potassium permanganate, sodium hydroxide etc. Incumbent must be able to work evenings, weekends, and holidays as directed and serve on rotational standby.

Conduct Standard:

Interacts with coworkers, supervisors, and the public in a positive, cooperative, and supportive manner.