Environmental Assessment Completed

West Mamm Creek Pipeline Project

White River National Forest Garfield, Colorado West Zone/Rifle Ranger District

Authorization for the installation and operation of a new buried 8-inch produced water pipeline, a new 6-inch produced water pipeline, and two co-located, up to 8-inch diameter low pressure natural gas pipelines in the West Mamm Creek area.

Location

Project is located south of Silt, Colorado in the West Mamm Creek drainage.

Project timeline

1
Scoping Start
08/11/2023
2
Comment Period
01/08/2025
3
Objection Period Start
03/19/2025
4
Decision
08/2025 (Estimated)
5
Implementation
09/2025 (Estimated)

NEPA / regulatory detail

Special AuthorityOil & Gas - Sec. 390, Energy Policy Act Of 2005 (Sec 390); Nepa Document Prepared By Another Federal Agency
Notice and Comment RegulationNot Subject to Regulations
Project ActivitySpecial Use Authorizations; Minerals Or Geology Plans Of Operations
West Mamm Creek Pipeline ProjectDecision Signed Date: 08/26/2025
ForestsWhite River National Forest
DistrictsWest Zone/Rifle Ranger District
Legal Land DescriptionSections 8, 9, 16, 21, 28 and 29. T7S, R93W, 6th PM.
Minerals and geologySpecial use management