MANDAN, ND (KXNET) — Mandan's city water quality remains within EPA requirements, according to the the city's annual water report. The 2024 Drinking Quality Report focuses on 80 drinking water contaminants the Environmental Protection Agency requires public water systems to monitor and report o n yearly. Not all 80 are present in all drinking water supplies, but cities must list those that they do detect. Of the ones detected in Mandan's water system, all fell within the EPA's safe range. The EPA also mandates public water systems test every five years for a list of unregulated contaminants that might be regulated in the future. Of that list, Mandan detected only one contaminant in its 2024 report: Lithium, at a reported 41.4 parts per billion. The EPA hasn't set a health reference for the chemical in public water, and opinions of safe levels vary widely from state to state, agency to agency and person to person. At this point, lithium is not considered a public water health issue. According to the report, Mandan takes in its water from the Missouri River. That river water is made safe for drinking at the Mandan Water Treatment Plant. At the plant, river water is pumped to a pretreatment basin where objectionable tastes and odors are treated and suspended sediments are removed. After pretreatment, the water passes through one of two treatment systems in the original 1958 or the 1985 plant addition. Each treatment path consists of softening, clarification, and stabilization, followed by disinfection and filtration. The city also treats the water with fluoride which, according to the report, is added "to enhance dental health." On average, the plant produces about 3 million gallons per day and has a peak capacity of roughly 12 million gallons per day. You can read and download the full 2024 water report below, or from the city of Mandan here. DRINKING_WATER_QUALITY_REPORT_FOR_2024_-finalDownload ...read more read less