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Innovation in Water, Wastewater and Stormwater Networks

Bentley Systems, Incorporated

Dallas-Fort Worth International Airport retained Freese and Nichols to update its water and wastewater models, and analyze the capital improvement plan for possible cost savings. Energy cost analysis revealed that adding an elevated storage tank would reduce energy consumption by about 51 percent, saving an estimated $117,000 per year and justifying the cost of the tank.

Freese and Nichols used WaterGEMS and SewerGEMS to convert, develop, and calibrate the existing models. The model conversion and calibration tools made the process cost effective and yielded a model compatible with Bentley products already in use by airport engineering staff. WaterGEMS demonstrated the cost savings of the elevated storage tank, which eliminates the need for pumping during low-demand periods.