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

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Madison County, IAALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY (PHMSA OPID 8170) reported 3.090941 active Natural Gas pipeline miles in Madison County, IA (county FIPS 19121) 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.#