MARATHON PIPE LINE LLC — Walla Walla County, WA

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Walla Walla County, WAMARATHON PIPE LINE LLC (PHMSA OPID 32147) reported 40.22767 active Non-HVL Petroleum Product pipeline miles in Walla Walla County, WA (county FIPS 53071) 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.#