Decision Memo Completed

Lancaster Mine CERCLA Removal Action

White River National Forest Summit, Colorado East Zone/Dillon Ranger District

The FS & the CO DOR, Mining, & Safety will be conducting final restoration work on the Lancaster Mine. Prior work has confirmed the presence of elevated lead & arsenic in the mine waste and zinc & lead in surface water below the mine.

Location

Less than 1/2 mile due north from the Town of Montezuma

Project timeline

1
Scoping Start
01/31/2014
2
Decision
06/2016 (Estimated)
3
Implementation
06/2016 (Estimated)

NEPA / regulatory detail

Categorical Exclusion32.11, 7 Cfr 1B.3(A) (6)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivityAbandoned Mine Land Clean-Up
Lancaster Mine CERCLA Removal ActionDecision Signed Date: 06/01/2016
ForestsWhite River National Forest
DistrictsEast Zone/Dillon Ranger District
Legal Land DescriptionT5S, R76W, Sections 25 & 26
Minerals and geology