Douglas County, Nebraska: drinking water report. Douglas County is home to Omaha and about 584,000 residents.
Douglas County is home to Omaha and about 584,000 residents. Metropolitan Utilities District (MUD) draws from the Missouri River and a wellfield along the Platte River, treating water at two plants. The Missouri River at Omaha carries the accumulated agricultural and industrial inputs of its entire upstream watershed – one of the largest river systems in the country.
The Missouri River at Omaha carries atrazine from upstream agricultural states. According to the USGS's 2024 monitoring data, atrazine at the MUD intake peaked at 2.6 ppb during spring flush – below the MCL of 3 ppb but consistently present. MUD's treatment process includes granular activated carbon specifically to address seasonal atrazine and taste-and-odor compounds.
Offutt Air Force Base in neighboring Sarpy County has confirmed PFAS contamination that affects the regional groundwater. The Air Force's 2024 environmental investigation documented PFOS at 43 ppt in monitoring wells near the base's fire training areas. While MUD's Missouri River supply is not directly affected, the Platte River wellfield draws from a shared aquifer system. The EPA's UCMR5 data detected PFAS at low levels in the MUD system.
Omaha's water treatment is thorough, but the Missouri River's agricultural contaminant load and the regional PFAS contamination from Offutt AFB make household filtration a reasonable added measure.
Check your water for current data. A carbon block filter handles atrazine and disinfection byproducts effectively. For PFAS, reverse osmosis provides the strongest household option. Our water filter guide covers systems suited to treated river water. Pull your detailed report for seasonal patterns, and visit our Nebraska page for statewide context.