County of Alameda

Plant Mechanic, Zone 7 (#4988)

Bargaining Unit: BTC - Zone 7 Crafts & Trades (062)
$57.46-$60.31 Hourly / $4,596.80-$4,824.80 BiWeekly /
$9,959.73-$10,453.73 Monthly / $119,516.80-$125,444.80 Yearly

Under general supervision, to perform skilled mechanical installation, maintenance and repair work on water treatment plant and field distribution system equipment and facilities; and to perform related work as required.


This class independently performs skilled mechanical maintenance and repair work on a wide variety of pumps, motors, valves, compressors, piping systems and related water treatment and distribution equipment and facilities. This class receives direction and assignments from the Lead Plant Mechanic, Zone 7, while the direct supervisor is the Facilities Maintenance and Construction Supervisor. This class is distinguished from the Lead Plant Mechanic in that the latter is responsible for coordinating and directing the work of Plant Mechanics.

NOTE: The following are the duties performed by employees in this classification. However, employees may perform other related duties at an equivalent level. Each individual in the classification does not necessarily perform all duties listed.

1. Installs, troubleshoots, maintains and repairs a wide variety of mechanical equipment in treatment plants and the field distribution system, including pumps, motors, valves, compressors, chemical feed and air recovery systems, gearboxes, piping systems and related equipment; performs preventive maintenance work.

2. Designs, fabricates and installs specialized equipment for repair and modifications to plant and field distribution systems.

3. Operates and maintains a wide variety of hand, power and shop tools used in the work; operates boom trucks and forklifts.

4. Estimates and secures materials, tools and equipment necessary to complete assigned work; contacts vendors as necessary.

5. Observes safe work methods and safety precautions related to the work.

6. Maintains accurate and complete records and logs related to assignments.

7. Reads and interprets blueprints, plans, manuals and schematics.

8. Performs incidental building trades work, including carpentry, painting, concrete and minor electrical work.

9. Directs the work of Plant Maintenance Laborers when they are assigned to assist the Plant Mechanic on projects.


The equivalent of two years of full-time experience in skilled mechanical maintenance repair work in a water or wastewater treatment or industrial setting. Completion of an apprenticeship in a related field, such as machinist, electrician or electronics technician, may be substituted for not more than one year of the required experience.


Possession of a valid California Driver’s license.

NOTE: The Civil Service Commission may modify the above Minimum Qualifications in the announcement of an examination.

NOTE: The level and scope of the following knowledge and abilities are related to duties listed under the “Examples of Duties” section of this specification.

Knowledge of:

• Methods, materials, tools and equipment used in water treatment plant and field distribution system maintenance and repair work, including plumbing, electrical and related building trades work.
• Shop math.
• Safe work methods and safety precautions related to the work.
• Metal fabrication, including welding, brazing and soldering.
• Principles of lead supervision.

Ability to:

• Install, diagnose, repair and maintain a wide variety of mechanical equipment used in water treatment and distribution work.
• Plan and complete work assignments independently.
• Operate and maintain a wide variety of hand, power and shop tools and equipment used in the work.
• Observe safe work methods and safety precautions related to the work.
• Read and interpret plans, specifications, manuals and schematics.
• Estimate materials, tools and equipment required to perform assignments efficiently.
• Follow written and oral instructions.
• Direct the work of others as assigned.
• Establish and maintain effective working relationships with those encountered in the course of the work.

Other Requirements:

Must be willing to work in exposure to potentially hazardous materials, in confined spaces, and outdoors in all weather conditions. Must possess strength sufficient to perform work assignments. Must be willing to respond to emergencies in off-hours as required.

Old doc: 1262h
New doc: /4988.doc
CSC Date: 5/18/94
KU:pf Revised 9/29/03
CSC Date: 11/12/03


Alameda County offers a comprehensive and competitive benefits package that affords wide-ranging health care options to meet the different needs of a diverse workforce and their families. We also sponsor many different employee discount, fitness and health screening programs focused on overall well being.  These benefits include but are not limited to*:

For your Health & Well-Being

  • Medical – HMO & PPO Plans
  • Dental – HMO & PPO Plans
  • Vision or Vision Reimbursement
  • Share the Savings
  • Basic Life Insurance 
  • Supplemental Life Insurance (with optional dependent coverage for eligible employees) 
  • County Allowance Credit
  • Flexible Spending Accounts - Health FSA, Dependent Care and Adoption Assistance
  • Short-Term Disability Insurance
  • Long-Term Disability Insurance
  • Voluntary Benefits - Accident Insurance, Critical Illness, Hospital Indemnity and Legal Services
  • Employee Assistance Program

For your Financial Future

  • Retirement Plan - (Defined Benefit Pension Plan)
  • Deferred Compensation Plan (457 Plan or Roth Plan)

For your Work/Life Balance

  • 12 paid holidays
  • Floating Holidays
  • Vacation and sick leave accrual
  • Vacation purchase program
  • Catastrophic Sick Leave
  • Group Auto/Home Insurance
  • Pet Insurance
  • Commuter Benefits Program
  • Guaranteed Ride Home
  • Employee Wellness Program (e.g. At Work Fitness, Incentive Based Programs, Gym Membership Discounts)
  • Employee Discount Program (e.g. theme parks, cell phone, etc.)
  • Child Care Resources
  • 1st United Services Credit Union 

*Eligibility is determined by Alameda County and offerings may vary by collective bargaining agreement.  This provides a brief summary of the benefits offered and can be subject to change.


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