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Senior Engineering Assistant

Effective: 07/01/08
Range: G-72
Respirator Class: 3


Perform highly technical design and related engineering work for various District sewer collection systems, pumping stations, ancillary plant facilities, and related appurtenances; administering outside engineering consultant contracts; and may provide lead guidance and training to other technical engineering staff on assigned projects.

Distinguishing Characteristics

The Senior Engineering Assistant class recognizes the assignment of work which requires knowledge, skills, and abilities generally reserved for experienced project engineering staff. Positions assigned to this class are responsible for project engineering work involving collection system facilities and structures and/or ancillary portions of the wastewater treatment plant as assigned. Specific projects may require incumbents in this class to provide less experienced technical staff with instruction, training, and work assignments as necessary, in the context of a lead role on a project team. Work performed by Senior Engineering Assistants is normally reviewed only upon completion and for overall results.

Supervision Received and Exercised

  • Receive direction from higher level professional or management personnel.
  • Exercise technical and functional supervision over lower level engineering staff as assigned.

Examples of Essential Duties

Duties may include, but are not limited to, the following:

  • Perform highly technical work relating to the design of sewer collection system pipelines, drainage facilities, pumping stations, levees, holding basins, District roads and parking areas, and ancillary plant facilities as assigned.
  • Inspect and evaluate sewer collection system problems, develop and recommend engineering solutions, and prepare estimates and schedules for the repair work.
  • Perform in the capacity of project engineer on collection system, pumping stations, plant facilities and building improvement projects.
  • Prepare, review and interpret plans and specifications; make recommendations for improvements and compliance with District standards.
  • Prepare construction estimates, bid proposal packages, specifications, and time schedules for a variety of engineering projects; evaluate advisability of bidding and constructing projects.
  • Respond to technical questions regarding engineering specifications, designs, calculations, and plans; make public presentations.
  • Provide construction management assistance on District treatment plant, pumping station and collection system projects; review shop drawings, perform construction administration; lead related meetings.
  • May serve in a contract review and monitoring capacity as assigned.  Provide District counsel and department heads with pertinent contract documents.
  • Work closely with survey crew, plan review staff, and right-of-way personnel in determining accurate measurements and resolving field problems as they arise.
  • Establish and maintain a variety of engineering records, files, and related documents.
  • Prepare a variety of clear and concise technical reports and project drawings as assigned.
  • Participate in District bidding procedures and prepare bid tabulations and data.
  • Contact other agencies and utilities to review field problems relating to the planning, construction, or repair of District sewer collection facilities.
  • Revise District standard specifications and contracts as assigned.
  • Assign project work to technical engineering staff as appropriate; train and instruct less experienced personnel in project engineering work.
  • May perform review of internal sewer collection systems using closed circuit television tapes.
  • Perform related duties as required.

Minimum Qualifications

Knowledge of:

  • Principles, practices, methods, and techniques of engineering design as they apply to sewer collection systems, treatment facilities, pumping stations, and related facilities.
  • Practices, methods, materials, and equipment used in the construction of sewer collection systems, treatment plant, and related facilities.
  • Surveying principles, practices, nomenclature, symbols, and equipment.
  • District specifications, requirements, and policies regarding treatment plant and sewer construction and design.
  • Computerized drafting techniques and practices.
  • Principles and applications of mathematics including algebra, trigonometry, and geometry.
  • Construction bid procedures, materials, and appropriate evaluative information and statistics.
  • Policies and regulations governing the construction, extensions, easement requirements, and maintenance of District sewer systems and facilities.
  • Safety hazards and appropriate precautions applicable to work assignments.

Ability to:

  • On a continuous basis analyze and prepare specifications, know best method for construction design equipment limits, observe while inspecting, remember previous projects and studies, and understand specifications.
  • Intermittently analyze hydraulics problems, identify existing and potential design problems, interpret specifications and plans, problem solve retrofit design, and explain specifications to contractors.
  • Intermittently walk and stand to review project sites; bend, squat, climb, kneel, and twist to check trench conditions; perform simple and power grasping, pushing and pulling; write or use keyboard to communicate through written means; lift or carry weight of 25 pounds or less. May be required to communicate via radio or cellular phone and hear radio dispatch signal.
  • Prepare accurate and precise engineering designs for sewer collection system lines, treatment plant facilities, pumping stations, and related facilities.
  • Perform a variety of tasks relating to the construction bidding process, including preparing bid packages, preparing specifications, and tabulating data from bids received.
  • Respond appropriately to technical questions regarding the design and construction of the sewer collection system or treatment plant facilities from contractors, outside engineers, representatives from other agencies, and other District staff.
  • Monitor and administer contracts with outside engineering consultants.
  • Communicate clearly and concisely, orally and in writing.
  • Provide technical training advice to less experienced engineering personnel.
  • Assign and review the work of others assigned to an engineering design project.
  • Prepare, read and interpret engineering plans, specifications, blueprints, survey notes, and related materials.
  • Perform technical and complex calculations with speed and accuracy.
  • Analyze data and make sound recommendations based upon analysis.
  • Perform and review a wide variety of drafting work in conjunction with assigned projects.
  • Establish and maintain accurate and complete engineering records and files by use of a computer.
  • Maintain cooperative working relationships with others.
  • Inspect field construction work and identify problems and discrepancies with design plans.
  • Learn and observe all appropriate safety precautions as required by the District including, but not limited to, Cal/OSHA General Industry Safety Orders, the District's Respiratory Protection Program, and District Safety Directives.

Experience and Education

Any combination equivalent to experience and education that could likely provide the required knowledge and abilities would be qualifying. A typical way to obtain the knowledge and abilities would be:


  • Two years of experience comparable to that of an Engineering Assistant in the District.


  • Equivalent to an Associate of Science degree in engineering or a closely related field.

Licenses and Certificates

  • Possession of a valid California Driver's License.

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