County of Alameda

Water Plant Operator III, Zone 7 (#4944)

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Bargaining Unit: SEIU 1021 - Zone 7/Clerk (059)
$51.93-$54.55 Hourly / $4,154.40-$4,364.00 BiWeekly /
$9,001.20-$9,455.33 Monthly / $108,014.40-$113,464.00 Yearly

Under general supervision, to operate, inspect, and maintain water treatment plant, well field and distribution system equipment and facilities; and to perform related duties as required.


Water Plant Operator III is the fully-qualified journey level classification in the series. Incumbents may assist in the training and instruction of Operator I’s and II’s. A Water Plant Operator III is responsible for the efficient operation and routine maintenance of a water treatment plant, well field and/or distribution system on an assigned shift. Incumbents of this class exercise independent judgment within the framework of standard policies and practices; supervisory personnel are consulted in unusual or emergency situations not covered by operating procedures. Maintenance, adjustment and repair duties are of a routine nature. Shifts and assignments, including Relief Operator, are typically performed on a rotational basis.

This class is distinguished from the Water Facilities Supervisor class, which is a supervisory class with 24-hour plant responsibility.

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. Operates and monitors pumps, valves, and related equipment to regulate the flow of water through a treatment plant or other portions of a water distribution system; starts, adjusts and shuts down plant operations, and/or adjusts well field and distribution system flows, to meet production and storage requirements and water quality standards.

2. Takes water samples and performs standardized laboratory testing, such as chlorine residual, pH, turbidity, temperature, taste and odor; calculates chemical dosages and adjusts chemical feeders as necessary to maintain water quality.

3. Controls filter operations; removes from service and backwashes filters as needed.

4. Reads and interprets meters, gauges, charts, and instruments; logs plant operations, test results, unusual operating conditions, maintenance work performed, and related information; enters data into computer; prepares routine and special oral and written reports as required; changes charts and inking pens as necessary.

5. Periodically inspects and tests motors, pumps, valves, chemical feeders and related equipment; reports unusual conditions and/or the need for maintenance and repair of equipment, buildings and grounds.

6. Takes inventory of chemicals and other treatment supplies; orders chemicals according to standard procedures; receives chemicals and supplies delivered during assigned shift and assists in their safe unloading and storage; handles hazardous materials in accordance with safety rules and procedures.

7. Lubricates and makes limited repairs and adjustments to equipment; maintains the plant and operating equipment in clean and orderly condition; assists in periodic cleaning of basins and pulsators, flushing of lines and related maintenance.

8. Answers and relays or responds to incoming telephone calls; provides information and assistance to customers, other agencies and the general public.

9. May perform routine housekeeping tasks and/or supplemental painting and grounds maintenance tasks.

10. May operate radio communication equipment, motor vehicles, forklifts and/or hoists in the performance of duties.


The equivalent of two years of full-time experience in operating water treatment plants.


Possession of a valid California driver’s license.
Possession of a valid Grade Ill Water Treatment Operator Certificate, or higher certificate, issued by the California Department of Health Services.

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

NOTE: The required level and scope of the following knowledge and abilities relate to the level of the position as defined in the distinguishing characteristics.

Knowledge of:
• Water treatment principles, practices, methods, tools and equipment.
• Operation, basic maintenance and cleaning of water treatment plant and distribution system equipment and facilities, including centrifugal pumps, electrical motors, and piping and control systems.
• Mechanical, electrical and hydraulic principles.
• Safety rules, regulations and work practices, particularly in reference to hazardous chemicals.
• Standard chemical and physical tests of water.
• Basic arithmetical calculations.

• Performing treatment plant and distribution system operations and maintenance activities, using sound independent judgment within established guidelines.
• Recognizing unusual, inefficient or dangerous operating conditions and taking appropriate action.
• Making operating and maintenance adjustments to water treatment and distribution equipment and facilities.
• Performing standard water quality tests.
• Reading, interpreting and recording data from charts, gauges and meters.
• Keeping accurate records and preparing simple reports.
• Making basic arithmetical calculations quickly and accurately.
• Using a computer keyboard to enter and retrieve information.
• Establishing and maintaining effective working relationships with those contacted in the course of work.


Requires willingness and ability to:
• Work outdoors in a variety of weather conditions
• Work rotating shifts, weekends, holidays, and in emergencies
• Work with and around hazardous chemicals
• Wear respiratory protection equipment

Requires sufficient physical strength and agility to perform equipment operation, inspection and maintenance tasks, and to unload, store and transfer supplies and equipment.

Old document: 4942h
New document: Jobspecs/4942-4943-4944
CSC Date: 1/20/99


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

  • 11 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.