Water Agency Maintenance Worker I - Extra-Help

County Of Sonoma   Santa Rosa, CA   Full-time     Maintenance
Posted on September 2, 2022
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At the entry-level, Water Agency Maintenance Workers perform a variety of semi-skilled, light and heavy manual tasks involving water- and wastewater treatment-related maintenance. Typical duties also include:


  • Performing trail, access, and service road maintenance
  • Repairing and installing treatment distribution systems, as well as flood control and river channels
  • Digging trenches, repairing pipes, and removing silt and other debris
  • Planting, pruning, cutting, chipping, and removing trees and other foliage
  • Installing, repairing, and removing fences
  • Working outside, in sometimes unfavorable weather conditions
Ideal candidates will possess an interest in learning new skills, the ability to work in a team environment, and:


  • A high school diploma or equivalent
  • Knowledge of riparian ecology and fire fuel reduction concepts such as shaded fuel breaks
  • Experience pruning trees and performing other vegetation management duties
  • Experience using various hand and power tools
  • One or more of the following desired, but not required licenses/certifications:
    • Arborist Certification issued by the International Society of Arboriculture
    • A valid, Class A Commercial Driver’s License
    • Qualified Applicator's License issued by the California Department of Pesticide Regulation

About Sonoma Water

Sonoma Water is a special district formed by the California State Legislature in 1949 and is responsible for providing a safe and reliable water supply to its customers in Sonoma and Marin counties. Sonoma Water also maintains 75 miles of flood control channels and provides sanitation services. Employing approximately 250 employees, Sonoma Water consists of six divisions including Engineering and Resource Planning, Environmental Resources, Community and Government Affairs, Water and Wastewater Operations, Maintenance, and Administrative Services. Sonoma Water supports the concept of environmental sustainability, focusing on renewable power sources, and strives to be a leader in its water conservation and fishery restoration programs.

Employees of Sonoma Water are employees of a special district, the Sonoma County Water Agency, and are not subject to the provisions of the Civil Service Ordinance of the County of Sonoma.


Extra-help employees relieve or augment permanent staff. Temporary, extra-help employees are not in the classified civil service and do not have property rights to permanently allocated positions. In addition, they do not receive most employee benefits such as: long-term disability insurance coverage; accrual of vacation; participation in the County retirement program; or eligibility to take promotional examinations. Temporary, extra-help employees are limited in their employment to a maximum of one calendar year. These employees must be off of work for three months before they can be re-employed on an extra help basis. Extra-help employees who meet the eligibility requirements may qualify for a County contribution toward medical coverage.
Sonoma Water is seeking qualified candidates to fill multiple temporary, extra-help Water Agency Maintenance Worker I positions. This employment list may also be used to fill future extra-help openings as they occur during the active status of the list. 


Minimum Qualifications


Education and Experience: Any combination of education, training, and experience that would likely provide the required knowledge and abilities listed. Normally, this would include some experience in construction which includes performing heavy physical labor, or maintenance work which includes the use of light mechanical machines and hand tools.

Driver's License: Possession of a valid driver's license at the appropriate level including special endorsements, as required by the State of California, may be required depending upon assignment to perform the essential job functions of the position. A valid State of California Class A Commercial Driver's License, including any valid and appropriate California Endorsement(s) (e.g. tank endorsement), is desirable.


Knowledge, Skills, and Abilities


Working Knowledge of: general construction materials, safety practices, and tools commonly used in wastewater collection and water distribution system construction and maintenance and/or in vegetation management; including basic types, styles, and sizes of pipes, parts, and fittings; principles and practices of a diverse range of semi-skilled trades areas such as carpentry, irrigation systems, drywall, asphalt and concrete work, plumbing, fencing construction and related trades areas; water and wastewater system functions and structures; flood control and collection system pipe laying procedures; methods, materials, and procedures used in bedding, backfilling, and black topping.

Knowledge of: materials and procedures used in repairing and replacing concrete structures; methods, equipment, and procedures used in water and wastewater system line cleaning; safety procedures, requirements, and equipment; repair, preventive maintenance, and safe operations of trucks, hand, and power tools; and light and heavy construction equipment; methods and techniques of using CCTV equipment to diagnose and resolve sewer line issues; safe working practices and techniques including those for working within confined spaces and handling/disposition of hazardous materials; USA methods and techniques; sewer systems standards as specified in California Uniform Plumbing Code; English grammar, vocabulary, spelling, punctuation, and composition; principles and practices of record keeping.

Ability to: perform a variety of semi-skilled manual maintenance and construction tasks for extended periods and under unfavorable weather conditions; operate line cleaning equipment and hand and power tools; determine appropriate methods to clean water and sewer lines; demonstrate physical strength, endurance, mechanical aptitude, and skills for working in a variety of trades areas; operate CCTV equipment to diagnose collection system issues and identify required maintenance; mark and locate underground services; operate a diverse range of light and heavy equipment in performance of assigned duties; work in confined and/or underground spaces; understand and follow oral and written instructions; follow safety procedures; accurately complete simple report forms; work effectively with other employees and the public; speak, read, and write English at a level appropriate for successful job performance; read work maps and plans.


Selection Procedure & Some Helpful Tips When Applying


  • Your application information and your responses to the supplemental questions are evaluated and taken into consideration throughout the entire selection process.
  • You should list all employers and positions held within the last ten years in the work history section of your application. Be as thorough as possible when responding to the supplemental questions.
  • You may include history beyond ten years if related to the position for which you are applying. If you held multiple positions with one employer, list out each position separately.
  • Failure to follow these instructions may impact your competitiveness in this process or may result in disqualification.