PAST PROJECTS Joslyn Tailings Site, Helena, Montana Mine Environmental Services The Joslyn Tailings site is a five acre, historical millsite which contained 10,900 cubic yards of mine/mill waste and contaminated soil elevated in arsenic and lead.  Both residential and commercial land use occurs in the area surrounding the site. The regional climate is semi-arid and a…

Read More

PAST PROJECTS Comet Mine in Jefferson County, Montana Mine Environmental Services Olympus completed site characterization, engineering design, repository stability monitoring, and construction management for Phase II of the Comet Mine and Millsite Reclamation Project. The Comet Mine was ranked #10 on the abandoned mine priority list for Montana. The site characterization included drilling and sampling…

Read More