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Effective: 07/01/08
Range G-68
Respirator Class: 2


Perform a variety of machinist tasks in the maintenance, repair, and installation of plant equipment, machinery, and tools; regularly serve as a lead worker in the Machine Shop.

Distinguishing Characteristics

This is an advanced journey level class in the Maintenance Technician series requiring extensive fabrication experience. Position(s) in this class are distinguished from the Maintenance Technician III, Mechanical class by the specialization in machinist work. It is distinguished from the Maintenance Technician II class by specialization in machinist work and by the extent of responsibility in task performance and indirect supervision of others.

The use of respiratory equipment (including self-contained breathing apparatus (S.C.B.A.)) may be required for this position. Therefore, the Machinist will be required to be free of facial hair that would interfere with the use of a respirator for annual fit tests and for any occasion which requires the use of respiratory equipment to comply with the District's respiratory program and Cal/OSHA standards.

Supervision Received and Exercised

  • Receive general supervision from the Machine Shop Supervisor.
  • Exercise technical supervision over Maintenance Technician I's and II's assigned to the Machine Shop.

Examples of Essential Duties

Duties may include, but are not limited to, the following:

  • Fabricate and machine parts for District equipment; measure, design, and modify parts.
  • Perform a variety of maintenance and repairs on machinery, equipment, and tools.
  • Prepare purchase order requests for materials.
  • Assist in training of lower level Maintenance Technician positions in machinist tasks.
  • Check condition of safety equipment.
  • Keep records on time and work orders.
  • May act as Machine Shop Supervisor in the supervisor's absence.
  • Perform related duties as required.

Minimum Qualifications

Knowledge of:

  • Methods, practices, and materials used in the maintenance machinist trade.
  • Purpose and operation of machine tools.
  • Equipment and materials used in maintaining and repairing machinery and equipment used in wastewater treatment systems.
  • Mathematics as required to perform responsibilities of the position.
  • Safety hazards and appropriate precautions applicable to work assignments.

Ability to:

  • On a continuous basis analyze drawings and order appropriate parts, identify metals, interpret what others' needs are, know how to operate different machines, observe others, problem solve broken items, understand what materials need to be used, and explain directions to others.
  • Intermittently walk around shop, bend, squat, climb, kneel, and twist while working on machines, perform simple and power grasping, pushing and pulling, fine manipulation, and lift or carry weight of 75 pounds or less.
  • Perform skilled machinist work on machinery and equipment, including complex fabrication tasks in multiple materials, i.e., steel, aluminum, brass, plastics, and wood.
  • Perform precision measurements and alignments.
  • Diagnose and determine effective course of action for correcting equipment malfunctions.
  • Maintain basic work records and prepare reports.
  • Establish and maintain cooperative relationships with those contacted in the course of work.
  • Understand and carry out oral and written directions.
  • Communicate clearly and concisely, both orally and in writing.
  • Learn welding sufficiently to pass a guided bend test.
  • Learn and observe all appropriate safety precautions as required by the District including, but not limited to, Cal/OSHA General Industry Safety Orders, the District's Respiratory Protection Program, and District Safety Directives.

Special Physical Requirements:

  • Must be able to wear respiratory protection device for dust protection and while painting and using certain chemicals and solvents. May be required to enter confined space. Must be able to wear S.C.B.A. and perform job duties while wearing protective equipment and S.C.B.A. weighing 32 pounds.

Experience and Education

Any combination equivalent to experience and education that could likely provide the required knowledge and abilities would be qualifying. A typical way to obtain the knowledge and abilities would be:


  • Three years of journey level experience in machine shop work.


  • Equivalent to the completion of the twelfth grade, supplemented by substantial training as a machinist, i.e., completion of an apprentice program that includes welding.

Licenses and Certificates

  • Possession of a valid California Driver's License.

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