Apply as a Transfer/Demotion applicant

$34.11-$43.05 hourly / $5,912.00-$7,462.00 monthly / $70,948.80-$89,544.00 yearly


Under general supervision, perform skilled mechanical repair and maintenance work on pumps, diesel engines and equipment in sewage transmission facilities, wastewater treatment plants and water treatment plants; on a project related basis, coordinate and assign the work of a small crew performing maintenance and repair of pumps and related equipment; and, does other work as required.

Distinguishing Characteristics

Incumbents independently perform the most difficult and complex maintenance and repair work on pumps, diesel engines, and related equipment common to sewage treatment facilities, waste-water treatment plants and water treatment plants.

This classification is distinguished from the classification of Sanitation Maintenance Worker III in that the latter classification does not perform the more complex repair work on mechanical or diesel systems.

Typical Tasks

Troubleshoot and repair mechanical equipment; plan, schedule and perform maintenance and repair work and special projects; requisition parts and materials necessary for maintenance and repair work, overhaul pumps and other equipment; assist in planning a preventative maintenance program for the upkeep of equipment; perform simple chemical tests in the field, interpret test results and make necessary adjustments to equipment; prioritize projects and assign work to subordinate staff; supervise subordinate staff, on a project related basis, to ensure that work is performed correctly and that assignments are completed on schedule; train staff in electrical and/or mechanical maintenance and repair techniques; maintain records of completed work and prepares reports; respond to alarms indicating malfunctions in pump stations; recommend whether to repair or replace equipment; and, work inside and outside, in wet and hazardous locations, at heights such as on ladders, roofs and water towers, with hazardous chemicals and substances, raw sewage, dangerous gases, and high voltage, and around moving objects, high levels of noise and unpleasant odors.

Identify mechanical defects in diesel engines to determine the extent of necessary repairs; repair and overhaul gas and diesel engines; perform metal fabrication welding projects; and, collect fluid samples from equipment and interpret lab results.

Employment Standards

Knowledge of:

Thorough knowledge of:

  • Safety practices to be observed when repairing and servicing electrical and mechanical equipment.
  • The methods, materials and tools used in troubleshooting, repair and maintenance of pumps, diesel powered generators, and other mechanical equipment common to sewage transmission facilities, wastewater treatment plants and water treatment plants.
  • Welding techniques.

Ability to:

  • Read and interpret blueprints and simple electrical schematics.
  • Plan and direct the work of a small crew, on a project related basis.
  • Maintain records and prepare reports.
  • Establish and maintain cooperative relationships with others.
  • Lift items weighing up to 75 pounds, such as pumps.
  • Perform tasks requiring strength, such as positioning 100 pound motors with the assistance of another individiual, carrying 40 pounds of equipment, digging trenches, and operating jack-hammers and roto-hammers.
  • Drive vehicles, such as pick-up trucks and utility trucks.
  • Work as a member of a team, including monitoring and operating equipment that keeps other workers alive while repairing equipment in confined spaces.
  • Distinguish colors.
  • Put on, wear and use a respirator.
  • Hear and distinguish various sounds, such as voices of co-workers in both noisy and quiet environments and sounds of operating equipment.
  • Diagnose the cause of mechanical failure and determine the appropriate repairs needed.
  • Perform skilled mechanical repair work on pumps, diesel engines, and other mechanical equipment common to sewage transmission facilities, wastewater treatment plants and water treatment plants.
  • Train subordinate staff in mechanical maintenance and repair techniques.
  • Perform skilled metal welding and fabrication work.

Education and Experience:

Any combination of training and experience which would provide the required knowledge and abilities is qualifying. A typical way to obtain these would be:

  • Two years of experience as a journey level mechanic working on pumps, diesel equipment and related equipment common to sewage treatment facilities, waste-water treatment plants and water treatment plants.

Special Requirements/Conditions:

  • License Requirement: Possession of a valid California class C driver license; and within six months from hire, possession of a valid California class A driver license.
  • Note: Alcohol and drug tests will be administered to all candidates prior to final selection for positions requiring class A or B driver licenses upon entry and to employees in positions requiring these li censes as mandated by Federal Department of Transportation regulations. In addition, all candidates must provide specific employment history for the past ten years for all jobs they have held which required operation of a commercial motor vehicle.
  • Special Working Conditions: Variable temperatures and weather conditions; confined work spaces; heights, such as on ladders; high levels of noise; strong, unpleasant odors; exposure to infections which might cause chronic disease or death; and, the possibility of experiencing burns, bodily injury, exposure to non-ionizing radiation, and contact with toxic substances or chemical irritants.
  • Other Special Requirements: Availability to work a flexible schedule, including evenings, week-ends, holidays and on an emergency, as needed basis; and, incumbents must provide the basic required tools upon employment and must provide the additional required tools within six months of employment.


PREVIOUS CLASS TITLES: Pump Maintenance Specialist I/II
Bargaining Unit: General Representation
EEOC Job Category: 07
Occupational Grouping: Mech & Const Trades
Worker's Comp Code: 116
Revised Dates: 1/94; 7/98; 10/11

CLASS: MP4; EST: 7/1/1984; REV: 10/1/2011;