ALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY — Washington County, IA

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Washington County, IAALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY (PHMSA OPID 8170) reported 15.440796 active Natural Gas pipeline miles in Washington County, IA (county FIPS 19183) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.#