Superfund Site Profile
The 83-acre Naval Industrial Reserve Ordnance Plant (NIROP) site is located about 700 feet from the Mississippi River in Fridley, Minnesota. The U.S. Navy and its contractors have produced advanced weapons systems at the facility since 1940. In 1981, trichloroethylene (TCE) was discovered in on-site groundwater wells and in the City of Minneapolis’ drinking water treatment plant intake pipe, located in the Mississippi River about 1,500 feet downstream from the site. Operation and maintenance of the site’s remedy, including groundwater monitoring and treatment, are ongoing.