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Spanish Fork’s new wastewater plant lowers ammonia levels; city says operation is stabilizing
Summary
City staff reported the new wastewater treatment plant is 'operating very, very well' after startup, with ammonia readings falling from averages near 18 in the old plant to around 0–0.5 in recent samples; staff said the plant provides capacity to meet current and anticipated permit limits.
Spanish Fork City staff told the council on Oct. 7 that the city’s new wastewater treatment plant has come online and is producing much lower ammonia readings than the old facility, a development staff described as a major improvement in compliance and odor control.
Corey, staff member, and other staff walked the council through startup data and process improvements. Corey explained how the plant’s biological treatment removes ammonia: “The microbiology breaks it down and uses it as an energy source and ultimately, you have nitrogen gas coming out or others that gets in the biosolids that we haul off to the landfill,” Corey said.
Staff presented comparative monitoring data: the old plant showed average ammonia levels approaching 18 (units as presented by staff), while…
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