The Metropolitan Water District of Southern California

Job Details

Job Summary

Operations & Maintenance Technician IV - Mechanical 

The Water System Operations Group, Operations Support Services Section, currently has one (1) opening for an Operations & Maintenance Technician IV – Mechanical within the Valve/Dive Team of the Manufacturing Services Unit. This position is located at the Weymouth Water Treatment Plant in La Verne, CA.

Utilizes journey level mechanical skills, experience and knowledge in the practices, procedures, and methods of installing, maintaining, and repairing both general and complex water utility and facility mechanical systems. Monitors and inspects mechanical equipment and related systems for reliable operating condition and performance, including predictive and diagnostic testing; preventive and corrective maintenance; improving equipment and asset capacity and upgrading systems to meet conveyance and distribution, treatment plants, and pumping plants operating and service demands.

Maintains and improves mechanical/electrical equipment related to Metropolitan’s significant revenue-generating assets, systems, processes, supporting facilities, and infrastructure including those within treatment plants, pump plants, chemical unloading and transfer facilities, conveyance and distribution structures, reservoirs, hydroelectric plants, and right-of-ways. Employees in this title ensure ongoing reliability and capacity primarily through maintenance activities, to ensure the operational service necessary to convey, store, treat, and distribute water and hydroelectric power effectively to member agencies and other customers.

Conveyance and Distribution
Activities in conveyance and distribution include inspecting, maintaining, and improving mechanical systems associated with large equipment, infrastructure, and assets such as pumps, turbines, generators, motors, compressors, valves, turnouts and hydraulic systems, pipelines, feeders and canals, control and pressure-relief structures, reservoirs, and other appurtenances and processes related to the effective delivery of water and electric power. Also, activities include operating utility trucks, cranes/rigging and heavy equipment. Operational activities include water flow changes and adjusting flow pressure settings in control and pressure relief structures, including shutdown and outage operations for maintenance such as dewatering, disinfecting and refilling.

Performs journey level mechanical maintenance tasks and activities at treatment plants, aqueduct pump plant, chemical unloading and transfer facilities, conveyance and distribution structures, reservoirs, hydroelectric plants, along right-of-ways, and at other facilities utilizing equipment, processes and systems to ensure ongoing reliability of water and power delivery.

Conveyance and Distribution
1. Performs a wide variety of journey mechanical preventive and corrective maintenance (PM/CM) on conveyance and distribution related systems, processes and facilities to ensure conveyance and distribution reliability that may include work on: valves of various sizes, configuration and operation control (manual and motor) including pneumatic and hydraulic systems, pipelines, feeders, aqueducts, canals, siphons, reservoirs, pumps, motors, generators, lubrication and cooling equipment, control and pressure relief structures and associated equipment/assets and cranes and rigging systems.

2. Completes preventive and corrective activities on large-scale water conveyance and distribution infrastructure and assets including aqueducts, tunnels, pipelines, siphons, feeders, canals and reservoirs, to maintain distribution system integrity, capacity, and operational reliability.

3. Utilizes state-of-the-art technology, perform predictive and preventive maintenance activities to determine infrastructure and rotating and moving equipment wear. Assist with the performance of predictive analysis through laser alignment, vibration and oil analysis to anticipate maintenance needs and determine appropriate actions to maintain and enhance equipment life and uptime.

4. Performs and/or assist with preventive and corrective maintenance of mechanical/electrical systems necessary for standby power generators and associated systems to maintain operational readiness during outages or other emergencies.

5. Performs preventive and corrective maintenance on valves of differing size, configuration, age, and operating control systems. May include lubrication, exercising and repair, and replacement of parts to ensure effective water movement and valve longevity. 6. Accomplishes preventive and corrective maintenance on pressure relief and pressure control structures to ensure reliable operation of water distribution components and functions. Perform PM and CM to ensure structure integrity, safety, security and appearance standards.

7. Operates and monitor valves to make flow changes and adjust pressure settings for routine operations, shutdowns, or other operating conditions requiring safe and effective transfer or adjustment in the movement of water.

8. Rebuilds and repair conveyance and distribution infrastructure, equipment, systems and processes as necessary, requiring planning, fabrication of parts, welding and/or assembly and installation to bring equipment/processes to as-designed operating condition.

9. Performs and/or assist with improving mechanical systems associated with construction and improvement projects such as building and infrastructure enhancements directly associated with conveyance and distribution systems including modifications, rebuilding, and relocating structures, assets, and equipment.

10. Completes, at times in collaboration with Specialist level or Control Technicians, complex predictive, preventive, and corrective maintenance on mechanical/electrical systems associated with large motors, pumps, generators, turbines, valves, varied equipment and other mechanical related systems associated with the effective movement of water and power.

11. Utilizes instrumentation to test and monitor the capabilities, limits, and effectiveness of equipment and subsystems of equipment, as well as other mechanical processes and systems directly related to power and water systems, to measure the ongoing effectiveness of those systems and to assure the quality of maintenance and/or improvements.

12. Inspects, tests, calibrates, and record readings for a variety of mechanical/electrical systems and equipment to meet reliable equipment life and service expectations, including motors, compressors, valves, pumps, flow meters, cranes and lifts, chemical storage and feed systems, basins and related equipment to ensure effective water operations and movement.

13. Assists with the planning and coordination of scheduled PdM, PM, and CM, as well as unplanned outages, shutdowns, and other emergency situations, to minimize equipment downtime and interruption of service to member agencies or other customers.

Work Schedule: 4/10


Education and Experience:
High school diploma or High School Equivalency certificate in addition to a minimum of 6 years in a mechanical maintenance position in a pump plant, treatment plant, hydroelectric or conveyance and distribution facility or similar environment.


High school diploma or GED in addition to the attainment of journey-level skills through a recognized mechanical trade training program. Journey level experience as demonstrated by practical application of general and advanced techniques and practices specific to the operation, maintenance, and repair of mechanical systems in treatment or pump plants, conveyance and distribution, and/or power generation systems, and related apparatus.

Required Knowledge of: Theories and practices of mechanical systems and their application to large-scale mechanical/electrical systems and equipment related to hydroelectric power plants, water treatment and distribution system, as well as general and utility facility mechanical systems, applying methods, practices, and machine shop equipment for metal fabrication, and tools to ensure reliable operations for the movement and treatment of water, generation of power, and optimization of assets and equipment to meet operational demands within established limits and standards, contemporary maintenance reliability analysis and troubleshooting methods including determination of failure causes, diagnostic analysis through failure mode, and root cause analysis, using traditional analog and precision digital instruments to ensure critical measurements and alignments as part of diagnostic and predictive maintenance, including laser alignment equipment, analog and digital meters, calipers and other tools related to close tolerance analysis and work, and safety practices and regulations for operating or working near electrical and/or mechanical equipment, high voltage systems, hazardous materials, and associated tools and equipment.

Required Skills and Abilities to: Understand and interpret mechanical and electrical engineering data necessary to effectively implement predictive, preventive, corrective, and improvement activities; Frequently perform or assist in the drafting, design, layout and development of procedures, manuals, orders and similar documentation to ensure safe operating techniques and/or for training; Interpret complex schematics, blueprints, electrical diagrams, instructions, manuals, operating and maintenance procedures, and specifications related to water treatment, conveyance and distribution and pump plant, as well as building, facility and hydroelectric power systems/equipment; Utilize tools and diagnostic equipment to test and monitor equipment and asset condition, as well as repair, install and replace equipment necessary to meet water and electrical generation demand and/or capacity; Use and maintain mechanical/electrical tools and equipment traditionally used in hydroelectric plants, pump plants, treatment plants, and within water and power control and distribution infrastructure and facilities; Apply and guide others in adhering to safety practices and regulations for operating or working near electrical and/or mechanical equipment, high voltage systems, hazardous materials, and associated tools and equipment.

Employees in this position may be required to obtain and maintain the following certifications, licensing and registrations: 
• Valid Driver’s license from state of residency, equivalent to a California Class C (Must have at time of application).
• Crane Certification (Must be obtained within 12 months of hire).
• Forklift Certification (Must be obtained within 12 months of hire).
• Manlift Certification (Must be obtained within 12 months of hire).


Expectations of Hours of Service, Emergency and Stand-by Service:
Employees in this position may be required to work off-shift hours and/or stand-by service to address operational needs and emergencies as required. Pump plant personnel assigned stand-by are required to respond within 15 minutes. May be required to work extended periods away from the normal reporting location. Physical Demands: Heavy tasks may require lifting and carrying items weighing up to 50 pounds, with intermittent need to lift and carry materials and/or equipment weighing up to 100 pounds with assistance. Frequently requires pushing, pulling, turning and positioning parts, assemblies, equipment and tools weighing as much as 100 pounds with assistance. May be required to lift and move heavy items with the assistance of others and with lifting devices such as jacks, hoists and cranes of varied types and capacities. Physical effort includes frequent walking, stooping, bending, reaching, standing, crawling, climbing, kneeling and sitting for long periods of time. At times may be required to use Self Contained Breathing Apparatus (SCBA) or other respiratory filtration and personal protection devices.

Work Environment:
Work is performed indoors and outdoors at large pumping, treatment, hydroelectric or control facilities, or associated assets, under all types of conditions including extreme temperatures, open and confined spaces ranging from crawl space to sub-structures as well as varied types of terrains. Job tasks frequently require working from heights and functioning from lifts, hoists, scaffolds, and cranes over surfaces ranging from earthen materials to concrete, steel and water. Work frequently is conducted in close proximity to high volume/pressurized water, as well as exposed, electrically energized equipment including high voltage systems. The work environment often involves exposure to equipment and tools producing high levels of noise, as well as potentially dangerous materials, chemicals, and machinery that require careful adherence to extensive safety precautions, rules and regulations.

Job Related Selection Criteria:
20% Job Preparation (education, experience and training relevant
to the position)
55% Technical knowledge of and skill in:
• Preventive maintenance and/or predictive diagnostic testing.
• Corrective maintenance, troubleshooting, and repair of large valves
and actuators.
• Operational and maintenance practices of water treatment equipment
and systems.
• Safety practices related to the industry
5% Interpersonal/Teamwork skills
5% Adaptability/Flexibility
10% Decision Making Skills
5% Oral communication skills
100% Total


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