Planning Engineer I​/II​/III

Under close supervision of the Manager, Planning Department, conducts the engineering studies, hydraulic analysis, and other tasks necessary to support operation of and long‑range planning for Fairfax Water’s transmission and distribution facilities.

• Conducting preliminary engineering studies and hydraulic analysis to establish the need, feasibility, function and priority of various system improvements such as pumping stations, storage facilities, or transmission mains.
• Calibration, maintenance and application of Fairfax Water’s hydraulic model, including:
  • Periodic update and calibration of the model to reflect changes to Fairfax Water’s network.
  • Documentation of modeling assumptions.
  • Conducting hydraulic steady‑state and extended period simulation simulations to support engineering studies and analysis.
  • Coordinating with and providing guidance to other FW staff members who may be applying the model as for other purposes, such as fire flow analysis.
• Performing detailed studies and analyses aimed at providing a justification for capital improvements to existing and future water supply facilities, including evaluation of alternative scenarios.
• Preparing cost and justification information for Fairfax Water’s Capital Improvement Program.
• Supporting update and maintenance of Fairfax Water’s Water Supply System Master Plan.
• Serving as Project Manager for specifically assigned projects, including tracking project schedule and budget, overseeing ongoing work, responding to consultant inquiries, and reviewing reports or other deliverables.
• Reviewing design documents to include plans, specifications, project schedules, expenses and reports on assigned projects.
• Coordinating design activities with various consulting engineering firms.
• Furnishing consultants with hydraulic system information as needed.
• Coordinating with the Chief, Short Range Planning, regarding hydraulic or other information necessary for review of site development plans.
• Identification of opportunities to coordinate Fairfax Water system improvements with planned highway or other construction projects.
• Updating Fairfax Water’s demand projections, including obtaining population information, trending historic water use, and evaluating various approaches to developing demand projections.
• Updating Fairfax Water’s System Storage Analysis, including conducting a mass balance, evaluating system demands, and performing a network analysis.
• Developing operating guidelines to support optimization of Fairfax Water’s transmission and distribution system.

• Graduation from a four year college or university with a Bachelor's Degree in Civil, Environmental or Infrastructure Engineering.
• E.I.T. Certification or the ability to obtain certification within one year.
• General knowledge of the theory and practices of civil engineering relating to the design and construction of public water supply facilities.
• Good working knowledge of hydraulic modeling software for water utility design, including but not limited to the following software packages:
  • Bently WaterCAD, Bently WaterGEMS, Innovyze Info Water, Aquanuity Aqua Twin, Autodesk Info Works WS, EPANET.
• General knowledge of hydraulics, GIS, computer modeling techniques, topographic and construction surveying, stress analysis, mechanics and properties of materials, drafting methods, engineering economics and real property descriptions.
• Ability to write reports.
• Ability to make accurate computations and notes.
• Ability to collect and compile research data.
• Ability to work proficiently in hydraulic analysis.
• Ability to maintain courteous and effective public relations.
• Good knowledge of Excel and Access.
• Good oral and written communication skills.
• Possession of a valid driver’s license and good driving record.
• Must pass a controlled substance (drug) test for employment.

• Graduation from a four year college or university with a Bachelor's Degree in Civil, Environmental or Infrastructure Engineering.
• E.I.T. Certification or the ability to obtain certification within one year.

• Graduation from a four year college or university with a…