AECOM was selected by the City of Upper Sandusky to perform a comprehensive evaluation of its then-existing lime softening water plant, which was built in 1890 and located in a flood plain. The city was concerned about upcoming EPA regulations regarding disinfection byproducts and the on-going maintenance of a plant with some parts nearly 120 years old. AECOM evaluated options for improvements to the existing plant plus an option to provide a new water treatment plant utilizing integrated membranes.
The city chose to construct a new integrated membrane water treatment plant with both ultrafiltration and reverse osmosis membranes instead of upgrading the existing plant. AECOM prepared a procurement package to procure ultrafiltration membrane equipment both for pilot and full-scale designs, and provided piloting and then detailed design of the 21,000-square-foot facility. We also presided over the construction providing full construction phase services to successfully complete the project. The treatment process can obtain greater than 90 percent removal of organics from the water and thus allows compliance with all regulatory requirements.