SOUTHERN ILLINOIS POWER COOPERATIVE — Williamson County, IL

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Williamson County, ILSOUTHERN ILLINOIS POWER COOPERATIVE (PHMSA OPID 38907) reported 5.41932 active Natural Gas pipeline miles in Williamson County, IL (county FIPS 17199) 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.#