Eval of WWTFs & Pump Stations

Burlington, Vermont | City of Burlington

The City of Burlington required a 20-year engineering evaluation of its wastewater treatment plants, collection system, and pump stations; the development of a 10-year capital plan; and consultant services related to wastewater revenue bonds. Satisfying the bond requirements required D&K to provide recommendations regarding (1) operation and maintenance, (2) ways to improve the operation of the wastewater system, and (3) changes in the rate and charges needed to meet the requirements of the rate covenant. 

D&K engineers visited every pumping station and treatment plant to determine the existing conditions of each device within each facility and to forecast replacement costs and impacts on ratepayers. Our team completed an evaluation report that was prepared in a ranking matrix with each item defined on a risk/probability scale and hyperlinked to a photograph. The report was divided into individual components and cross-linked to Burlington’s GIS system, providing integrated asset management capabilities and a user-friendly method for staff to access current equipment condition information.

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Project Elements

• Evaluation of three wastewater treatment plants and 26 wastewater pumping stations serving the City’s 42,000 residents
• Facility evaluations included screening, grit removal, clarification, aeration, and sludge dewatering and digestion