Abstract
This article discusses a project where the village of Manteno, Illinois, initiated a boil‐water order when a routine distribution system sample indicated total and fecal coliform bacteria. It was determined that Manteno's aquifer was under the direct influence of surface water and not in compliance with the applicable regulations. As a result, Manteno agreed to either add filtration to its water treatment process or obtain an alternate water supply. The article lists several drawbacks that required a different interim water treatment plan to address these difficulties. It was determined that the most effective method would be the addition of ultraviolet (UV) disinfection ahead of the chlorination process at each wellhouse. Pilot testing plans and results are discussed, along with design and construction, and the good working relationship among Manteno, the consultants, and the Illinois Environmental Protection Agency (IEPA).
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