Summary Information
(last updated on: 1/9/2012 10:08:43 AM)
[June 2011] In a 1996 Preliminary Assessment, DEQ identified potential public health and environmental threats related to contamination from this mine. Mercury contamination in nearby streams and in Cottage Grove Reservoir was linked to the Black Butte Mine area, including surface water runoff of contaminated soil from an estimated 300,000 cubic yards of mine tailings. In U.S. EPA's 1999 Site Investigation, unsafe levels of arsenic and mercury in mine tailings and soil at the mine were documented, confirming that the Black Butte Mine posed a serious threat to public and environmental health.

In 2002, DEQ designated Black Butte Mine as an Orphan site, to expedite investigation and cleanup. Partly because of DEQ's inadequate Orphan funding availability, EPA added the site to the NPL (federal Superfund list) in March 2010.
General Site Information
Site: Black Butte Mine (ECSI Site ID: 1657) CERCLIS (EPA) Id0000515759
Project Manager: Bryn Thoms Investigative Status:Listed on the Confirmed Release List or Inventory
PM Phone: (541) 687-7424 NPL(National Priority Listing):Yes
Address: London Rd. (approx. 15 miles S of Cottage Grove) Is this site an Orphan?Yes
, Is this site a brownfield?No
County: LANE Action Underway or Needed: REMEDIAL INVESTIGATION
Region: Western Region Click for more details ...  
Site Documents
Click the link to view the document.
File NameCategory File Size MB Document Date Upload Date
BBM Mercury Flask in Coast Fork Willamette River (Dec. 2016).pdf Memos 2.8263 12/20/2016 12/21/2017
Black Butte Mine Orphan Declaration.pdf Memos 0.6766 8/12/2002 8/3/2018
Site Visit Photos Aug 2018 reduced.pdf Memos 5.0977 8/23/2018 8/23/2018
USGS Bulletin 850 - Quicksilver Deposits of SW Oregon (1934).pdf Miscellaneous 3.6081 5/10/1934 12/21/2017
Sources of Contamination, Cottage Grove Res. (May 2003).pdf Reports 0.9884 10/15/2007
PreliminaryAssessment-BBM-DEQ.pdf Reports 2.8871 4/9/2009
Soil Reconnaisance Report by DEQ and OSU.pdf Reports 0.0785 4/9/2009
BBM EPA Site Inspection wo attachments.pdf Reports 4.3884 7/8/2011
Black Butte Mine PHA.pdf Reports 2.7644 1/6/2012
contamination of two OR res..pdf Reports 0.8897 3/1/2001 10/23/2017
BBM Removal Assessment Rpt., no appendices (March 2006).pdf Reports 1.9490 3/31/2006 12/21/2017
BBM Final Removal Report (July 2008).pdf Reports 2.3525 7/20/2008 12/21/2017
Hg loading Assessment Results (Aug. 2008).pdf Reports 3.3507 8/21/2008 12/21/2017

Click on the Photograph to see a larger version.

Primary waste tailings pile.
Upper portion of "new" rotary kiln furnace, located above Dennis Creek.
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Department of Environmental Quality
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