Job Description

Overall Job Objective

$61,942.40 - $88,046.41 Annually
San Mateo County, CA
Job Type
Public Works Administration
Job Number
10/17/2018 11:59 PM Pacific

The Department of Public Works is a seeking qualified Wastewater Collection Worker. Under general supervision, Wastewater Collection Workers perform a variety of semi-skilled and manual tasks in the operation and maintenance of sanitary sewer and storm drain systems; and operate a variety of light construction equipment and wastewater system equipment.

In addition to the knowledge, skills and abilities expected of a Wastewater Collection Worker, the ideal candidate for this physically demanding position can work independently, take directions well, possess excellent customer service skills, utilize safety practices and has a great understanding of teamwork.

NOTE: This is an extra-help, at-will assignment, paid on an hourly basis. Some extra help positions are eligible for benefits under the Affordable Care Act. Extra-help workers are not guaranteed permanent status at the end of the extra-help assignment.

NOTE: The eligible list generated from this recruitment may be used to fill future extra-help, term, unclassified, and regular classified vacancies.

Examples Of Duties

Duties may include, but are not limited to, the following:
  • Perform inspections of sewer lines and storm drains.
  • Read and interpret sewer system and drainage system maps.
  • Read and interpret construction plans and specifications.
  • Perform closed circuit television inspections of sewer lines.
  • Rod (using truck mounted and hand rodding equipment) and flush sewer and storm drain system lines as part of the preventative maintenance activities or to remove obstructions.
  • Maintain accurate and complete records of work performed and system changes or modifications as determined.
  • Operate pumps to remove sewage from damaged or clogged lines, in response to sewer overflows, or when by-pass pumping is required.
  • Clean catch basins.
  • Cut and refinish streets, sidewalks, and driveways; lay cement and asphalt.
  • Repair and reconstruct damaged sections of sewer lines and sewer lateral lines.
  • Inspect, repair, raise, adjust, and construct manholes.
  • Make minor repairs to pumps and other equipment.
  • Drive and operate construction, sewer and road maintenance equipment, including but not necessarily limited to ½and 1-ton trucks, haul behind compressor, and walk-behind rollers.
  • Respond effectively and appropriately to sewer overflows and backups.
  • Monitor tools and equipment to ensure they are maintained in good working order and inform supervisor when maintenance or replacement is required.
  • Operate light equipment used in trenching and pipe repair and replacement work including small tractors, light trucks, pumps, generators, compressors, forks, shoring equipment and other tools.
  • Read domestic, commercial and industrial water meters; compute water consumption since the previous reading.
  • Note and report leaks in sewer mains, laterals, and manholes; courteously and effectively communicate to customers of lateral problems that require attention or repair.
  • Receive, record, and respond to complaints; answer questions regarding complaints.
  • Required to be in an "on-call" status once sufficiently trained and to be available to assist for work in emergencies outside of normal working hours.
  • Perform related duties as assigned.



Wastewater Collection Worker I: Possession of a class C California driver license or equivalent AND the ability to obtain a Class B California driver license with both air brake and tank endorsements AND a Grade I Collection System Maintenance Certification through California Water Environment Association's (CWEA) Technical Certification Program, within 18 months from the date of hire.

Wastewater Collection Worker II:  Possession of a class B California driver license with BOTH air brake and tank endorsements AND possession of a Grade II Collection System Maintenance Certification through the California Water Environment Association's (CWEA) Technical Certification Program.

Education and Experience: Any combination of education and experience that would likely provide the required knowledge, skills and abilities is qualifying.

Knowledge of:
  • Methods, materials, tools and equipment used in the operation and maintenance of sanitary sewer and storm drain systems.
  • Operating, monitoring, and reporting maintenance issues of light and medium duty trucks and road construction equipment.
  • The proper use of hand tools including shovels, rakes, hoes, sewer maintenance tools, etc.
  • The proper use of power tools and light equipment including power saws, drills, air powered tools, portable and stationary pumps, generators, compressors, vibratory rollers, motorized tampers, etc.
  • Methods and materials used in sewer and storm drain systems maintenance and repair.
  • Basic arithmetic.
  • County and CAL OSHA safety rules, procedures and equipment.

Skill/Ability to:
  • Operate a variety of light construction equipment and wastewater system maintenance equipment, which may include combination truck (Vactor), flusher truck, rodder truck, dump truck, closed circuit television vehicle and equipment, and vacuum pumps.
  • Perform heavy manual labor, which requires strength, agility and endurance.
  • Operate a wide variety of hand and power tools and equipment.
  • Ability and willingness to learn new technologies, work methods, equipment, etc.
  • Work courteously and effectively with the public and with co-workers.
  • Remain calm and react effectively and appropriately in an emergency.
  • Follow oral and written instructions.
  • Bend, stand and walk for extended periods of time.
  • Lift and carry heavy equipment and supplies used in the course of the work, such as jackhammers, pumps, piping and paving materials.
  • Follow safety procedures, including traffic regulations to minimize injuries and accidents.
  • Take initiative to improve methods for performing preventative maintenance activities.
  • Analyze existing sewer systems to identify problem lines and offer suggestions for improved maintenance activities and efforts.


This is an extra-help recruitment. Anyone may apply. Responses to the supplemental questions must be submitted in addition to our regular employment application form. 

The examination process will consist of a scored relevant Training and Experience (T&E) (weight: pass/fail) based solely on the candidates' responses to the supplemental questions. Successful candidates in the T& E process will be invited to a panel interview (weight: 100%). Depending on the number of applications, an application appraisal of education and experience may be used in place of other examinations or a screening committee may select those applicants whose education and/or experience appear to best meet the needs of the position based solely on the information provided in the application documents. Because of this screening process, all applicants meeting the minimum qualifications are not guaranteed advancement through any subsequent phase of the examination. All examinations will be given in San Mateo County, California and applicants must participate at their own expense.

IMPORTANT: Applications for this position will only be accepted online. If you are currently on the County's website, you may click the "Apply Online" button above or below. If you are not on the County's website, please go to to apply.


Final Closing Date: October 17, 2018
Training & Evaluation: Week of October 22-25, 2018
Combined Civil Service & Departmental Interviews: November 6 and/or 7, 2018

 At the County of San Mateo, we welcome and celebrate the diversity of our employees, and strive to create a workplace where they feel valued every day.  County of San Mateo is proud to be an Equal Employment Opportunity Employer.
NOTE: This position will require successful completion of a background check prior to hire.
Analyst: Christina Chan (092718 (Wastewater Collection Worker I/II - N063/N064)

Keywords: Sanitary sewer, storm drains, wastewater system, pump, CWEA

Application Instructions

To learn more about the position and/or to apply, please click the link below. If link is not available, please read the information above for detailed instructions on how to apply.

Apply Online