AMEREN ILLINOIS COMPANY — Washington County, IL

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Washington County, ILAMEREN ILLINOIS COMPANY (PHMSA OPID 32513) reported 4.895754 active Natural Gas pipeline miles in Washington County, IL (county FIPS 17189) 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.#