Summary of Mine Reclamation Projects in the Upper Animas River Basin »


Summary of Mine Reclamation Projects in the Upper Animas River Basin
(Updated 11/2/2015) download the pdf

Project Sponsor Project Site Name Location Type of Remediation Project Timeframe Funding (+in-kind match) Improvements (actual or anticipated)
SunnysideGold Corp. Lead Carbonate Millsite Gladstone on bank of S. Fork of Cement Creek Removal of 27,000 yards of tailings from streambank Completed
1991
SGC: $163,000 Reduce loading of metals and erosion transport of tailings
SunnysideGold Corp. Mayflower Mill – Tailings Ponds #1, #2 and #3 Mayflower Mill complex near Boulder Creek and Animas River Re-contour inactive tailings ponds and cap.
625,000 yards of tailings and overburden moved.
Completed 1991-1992 SGC: $1,755,000 Mined land reclamation –reduce loading of metals and erosion transport of tailings
SunnysideGold Corp. Lake Emma Sunnyside Basin Sunnyside Basin headwaters of Eureka Creek Fill mine subsidence, remove 240,000 yards mine waste and re-contour disturbances. Completed 1991-1993 SGC: $911,000 Mined land reclamation and reduce loading of metals
SunnysideGold Corp. American Tunnel waste dump Gladstone on bank of S. Fork of Cement Creek Remove 90,000 yards of waste dump and underlying historic tailings Completed 1995 SGC: $766,500 Mined land reclamation and reduce loading of metals and erosion transport of tailings
SunnysideGold Corp. Eureka Townsite On banks and In floodplain of Animas River Remove 112,000 yards of tailings Completed 1996 SGC: $843,000 Reduce loading of metals and erosion transport of tailings
SunnysideGold Corp. Gladstone Cement Creek at Gladstone Divert and treat Cement Creek to mitigate any short term impacts of reclamation projects 8/96-5/99, 11/99-12/99 SGC: $901,000 Reduce loading to Animas River to offset any short term impacts of reclamation of other sites.
SunnysideGold Corp. Boulder Creek Tailings Flood plain of Boulder Cr. and the Animas River Remove 5700 yards of tailings Completed 1997 SGC: $32,500 Reduce loading of metals and erosion transport of tailings
SunnysideGold Corp. Ransom adit Eureka townsite above old mill foundation Bulkhead seal to stop deep mine drainage and reclaim portal Completed 1997 SGC: $85,400 Restore hydrologic regime and reduce rate of ore oxidation by placing mine workings under water to reduce metal loading.
SunnysideGold Corp. Gold Prince mine waste and tailings Headwaters of Placer Gulch Bulkhead seals to stop deep mine drainage. Consolidate mine waste and tailings (moved 6000 yards) and construct upland diversions Completed 1996-1997 SGC: $151,000 Reduce exposure to water to reduce metal loading
SunnysideGold Corp. Longfellow-Koehler Headwaters of Mineral Creek near top of Red Mountain Pass Remove Koehler dump (32,100 yards), consolidate Junction Tunnel dump and Longfellow dump and cap. Capture adit drainages. Construct diversions. Feasibility study of wetland treatment of Koehler drainage. Completed 1996-1997 SGC: $580,000 Reduce metal loading and erosion transport of mine waste
SunnysideGold Corp. Pride of the West tailings Howardsville near confluence of Cunningham Creek with Animas River Remove 84,000 yards of tailings Completed 1997 SGC: $490,500 TUSCO: $14,000 Reduce metal loading and transport of tailings by erosion SunnysideGold Corp.
SunnysideGold Corp. Sunnyside Mine Sunnyside Mine Lake Emma Area Inject 652 tons of hydrated lime into the Sunnyside Mine pool to provide increased alkalinity and improve initial mine pool conditions Completed 1996-1997 SGC: $313,000 Improve initial conditions as water table is restored through bulkheading to stop mine drainage
SunnysideGold Corp. Mayflower Upland Hydrological Control Mayflower Mill and Tailings Pond #1 area near Silverton Capture and divert three upland drainages that were going sub-surface up-gradient of the mill and TP #1 facilities Completed 1998-1999 SGC: $186,000 Minimize potential for contact of runoff with tailings and reduce potential for metal loading
SunnysideGold Corp. TP #4 drainage modification Drainage ditch between Hwy. 110 and TP #4 near Silverton and Animas R. Install lined diversion ditch to capture surface runoff and prevent infiltration through tailings material Completed 1999 SGC: $72,000 Minimize potential for contact of runoff with tailings and reduce potential for metal loading
SunnysideGold Corp. TP #4 upland groundwater diversion Up-gradient from Tailings Pond #4 near Silverton Capture groundwater and divert around tailings impoundment Completed 1993-1995, 1999 SGC: $409,000 Minimize potential for contact of groundwater with tailings and reduce potential for metal loading
SunnysideGold Corp. Sunnyside Mine hydraulic seal project Sunnyside Mine Bulkhead placement in Sunny-side Mine to restore hydrologic regime to approximate pre-mining and eliminate drainage from adits (6 bulkheads) Completed 1992-1996 SGC: $2,346,000 Place mine workings under water to reduce oxidation, restore groundwater movement around mine workings and eliminate need for perpetual water treatment
SunnysideGold Corp. Power Plant Flats Power Plant Flats, Animas River floodplain Removal of mill tailings from floodplain Completed 2003 SGC: $ ? Excavate buried tailings and dispose into Mayflower Tailings Pond #4
Gold King Mines Corp. Mogul Mine Bulkhead Mogul Mine, Upper Cement Crk. Stop discharge of AMD from Mogul Mine Summer, 2003 SGC: $? Reduce metal loading to Upper Cement Crk
Gold King Mines Corp. Kohler Mine Bulkhead Kohler Mine, Headwaters of Mineral Crk Stop discharge of AMD from Kohler mine Summer, 2003 SGC: $ Reduce metal loading to Mineral Crk. Headwaters
Gold King Mines Corp Gold King Mine Gladstone, N. Fork of Cement Creek Hydrologic controls for workings and mine waste 1998 Gold King: $117,300 Reduce metal loading to North Fork of Cement Creek
Gold King Mines Corp Gold King Mine discharge Gold King discharge treatment Pipe mine discharge to Gladstone to actively treat 2002 Gold King: $ ? Reduce metal loading to Upper Cement Crk.
Silver Wing Mining Co Silver Wing Animas river, about 1.5 mile above Eureka Collect AMD, hydrological controls 1995 Silver Wing $7,000 Remove AMD from dump, reduce metals loading
Silver Wing Mining Co Silver Wing Animas River, about 1.5 miles above Eureka Anoxic Drain, settling pond, bioreactor 1999-2000 NPS 319 Funds: $216,000. St. Severance tax: $144,000 Reduce metal loading to the Animas River.
Anglo Saxon, Inc Anglo Saxon/Porcupine Mines Cement Creek Determine water pressure behind 2 closed portals 2009 $14,000 NPS $10,000 Anglo Saxon, Inc. Characterization for evaluation of bulkheads in mines
Mining Remedial Recovery Sunbank Group Placer Gulch Anoxic drain, settling pond, waste consolidation, bulkhead 1995 NPS 319 Funds: $58,000 MRRC: 38,500 Raise pH from draining adit, reduce metal loading from adits and mine waste
Salem Minerals Mammoth Tunnel North Fork of Cement Creek Settling ponds for mine drainage 1999 NPS 319 Funds: $10,050. Salem Minerals: $6,700 Focused on reductions of iron to Cement Creek
San Juan RC & D(ARSG) Carbon Lakes Mine Dump Headwaters of Mineral Creek East of Red Mountain Pass Removal of 1,900 cubic yards of waste rock from stream channel Phase 1 –completed 1999 NPS 319 Funds: $72,000 ARSG match: $62,800 Reduce loading of metals especially Cadmium, Copper, Iron, Lead, Manganese, and Zinc
San Juan RC&D (ARSG) Galena Queen and Hercules Prospect Gulch Waste Removal, hydrologic controls, amendments, revegetation. 2001 NPS 319 Funds: $94,800 Mineral Sev: $90,000 Elimination of surface water leaching of toxic metals. Post remediation monitoring begins in 2002.
San Juan RC & D (ARSG) Carbon Lakes Mine Waste Phase II Part 1 Headwaters of Mineral Creek East of Red Mountain Pass Complete removal of waste rock from stream channel 2001 season NPS 319 Funds: $38,000 ARSG Match: $51.000 Reduce loading of metals to Animas River, restore stream channel, revegetate
San Juan RC & D (ARSG) Carbon Lakes Phase II, Part 1 Headwaters of Mineral Creek East of Red Mountain Pass Removal and disposal of 3000 tons of Congress Mine Dump wastes 2001 season NPS 319 Funds: $38,500 ARSG Match: $42.500 Reduce loading of metals to Animas River by beginning the removal of mine wastes.
San Juan RC & D (ARSG) Carbon Lakes Phase II, Part 2 San Antonio & Kohler Tunnel infiltration control Infiltration Control: Purchased Carbon Lakes Trans-basin diversion rights; abandoned ditch 2001 season NPS 319 Funds: $50,000 ARSG Match: $33.333 Reduce water infiltration to the San Antonio and Koehler Mines; reduce AMD
San Juan RC & D (ARSG) Red Mtn. Project Carbon Lakes Ditch Restoration Ditch, Wetland and Stream Restoration 2003 SWWCD: $5,000; USFS: $12,400 Return Mineral Crk headwaters to natural hydrology; erosion controls; restoration of transbasin diversion ditch; wetland restoration.
San Juan RC & D (ARSG) Red Mtn. Project Congress Mine, Mineral Crk. headwaters Complete removal of Congress mine wastes 2003 NPS 319: $174,000; July, 2003; Min. Sev-erance Tax: $ ? Reduce metal loading to Animas River by removal of mine wastes and benefaction.
San Juan RC & D (ARSG) Red Mtn. Project San Antonio Mine Waste Control project Hydrological controls, remove wastes from stream, consolidation, neutralization, revegetation 2004 Ca. $80,000; 40% match from Silver Wing Co. disposal fees. Reduce metal loading and acidity to Mineral Creek; stabilize site, restore streambed
San Juan RC & D (ARSG) Handies Peak Project Lucky Jack Mine wastes and drainage Hydrological controls, remove wastes from fen, consolidation, neutralization, revegetation; adit and shaft closures 2004 Ca. $75,000; match from Co. Mineral Severance Reduce metal loading and acidity to Upper Animas River; uncover fen and restore
San Juan RC & D (ARSG) Handies Peak Project Upper Lucky Jack Mine wastes and drainage Consolidation, neutralization, & revegetation of waste dump; clean streambed of wastes 2005 Ca. $13,095; match from Co. Mineral Severance Reduce metal loading and acidity to Upper Animas River from leaching mine wastes partially residing in stream
San Juan RC & D (ARSG) Infiltration Control Project Pride of the West Mine Open Stopes Combined safety and infiltration closure of 2 large open stopes & 1 raise. 2005 Ca 700,000; Min. Severance; NPS =$125K; Match=$84K Reduced surface water infiltration into mine to reduce metal loading at mine discharge.
San Juan RC & D (ARSG) Priority Waste Site Kansas City #1, 2, and 3 mines Safety closure, mine waste consolidation and burial; revegetation; run-on/off controls. 2006 Ca 175,000; Mineral Severance, NPS, DMG safety pro Reduced surface water leaching of mine wastes.
San Juan RC & D (ARSG) Red Mtn. Project Upper Browns trench and mine mine waste consolidation and burial; revegetation; run-on/off controls. 2006 $62,000 NPS $41,333 match Reduced surface water leaching of mine wastes
San Juan RC & D (ARSG) Silver Ledge Project Mineral Creek Remove mine wastes from creek, consolidation in repository; fly ash; run on and run-off controls, some reveg. 2010 $104,486.92 (40% DRMS Match) Reduced surface water leaching of mine wastes
San Juan RC & D (ARSG) Koehler Mine fracture grouting Mineral Creek Install new portal, rehabilitate mine drift 2010 $47,044.00 (40% DRMS Match) n/a
San Juan RC & D (ARSG) Koehler Mine fracture grouting Mineral Creek Pressure grout fractures around existing bulkhead 2011 $337,135.00 (40% DRMS Match) Reduce metal loading to Mineral Creek
San Juan RC & D (ARSG) ARSG 319 Maintenance and Characterization Project Mineral Creek, Carbon Lakes, San Antonio, Congress and Silver Ledge Maintenance of previous 319 mine sites, revegetation at Carbon Lakes and Congress, and maintenance of repository at Silver Ledge 2013 $147,107.39 – All Power Authority CDPHE funds Maintenance of repositories and removal sites that are reducing surface water leaching of mine wastes
San Juan RC & D (ARSG) Bullion King Mine Waste Reclamation Project Mineral Creek mine waste consolidation and burial, liners; revegetation; run-on/off controls. 2015 $443,621.42 (40% DRMS match) Reduced surface water leaching of mine wastes.
Office of Surface Mining Galena Queen Prospect Gulch Waste consolidation & hydrological controls 1998 Office of Surface Mining: $10,000 Reduce surface water leaching of toxic metals
U.S.BLM Joe & John Tunnel Prospect Gulch Mine drainage collection and diversion 1998-1999 BLM: $36,000 Collect AMD for later treatment project development
U.S.BLM Lark Mine Prospect Gulch AMD collection, hydrological controls 1999 BLM: $17,800 Collect AMD for possible treatment, remove surface water from site
U.S.BLM Forest Queen Animas near Eureka AMD collection and passive wetland treatment 1998-1999 BLM: $290,000 Reduce metal loading to Animas River
U.S.BLM Mayday Mine Cement Creek Hydrological controls, cap top of mine waste pile Repairs to wall and cap 1998-1999 2011 BLM: $87,000 BLM $135,670 Reduce surface water leaching of toxic metals
U.S.BLM Lackawanna Tailings Animas near Silverton Removal of tailings from flood plain to Mayday dump for consolidation and capping. 2000 BLM: $300,000 Reduce metal loading to Animas River
U.S.BLM Elk Tunnel Cement Crk Passive treatment of mine discharge 2003 BLM: $110,000 Reduce Fe loading to Cement Crk
U.S.BLM& Duke Energy Henrietta Mine 6 & 7 levels Prospect Gulch Mine waste consolidation, neutralization, clay cap, top soil, revegetation 2004 Duke Energy, $500,.000; BLM $unknown Reduce metals and acidity in Prospect and Cement Creeks
U.S.BLM Upper Joe & John & Lark mines Prospect Gulch Consolidation of mine wastes from 2 mines sites into one lined repository Repository Repairs 2006-7 2011 BLM: >$600,000 $24,700 Reduce Fe, Zn, Cu, Cd, Pb loading to Cement Crk
U.S.BLM Lark Prospect Gulch Repair damages to access road 2010    
U.S.BLM Wynona Cement Creek Construct 0 valent iron treatment system; road access 2010 BLM $110,103 Test treatment media and reduce metal loading to Cement Creek
U.S.BLM Lark Prospect Gulch Repair repository migrating cover; reveg. 2011    
U.S.BLM Wynona Cement Creek Test water treatment media Remove failed media; replace 2010 2011 BLM $110,103 BLM $8,300 + to MSI $4972 Test treatment media and reduce metal loading to Cement Creek
U.S.F.S Bonner Mine Middle Fork of Mineral Creek Waste removal and consolidation; capture mine drainage and reroute 2000 F.S.: $63,384 Reduce metal loading ot N. Fork Mineral Creek from mine waste and draining adit
U.S.F.S. Brooklyn Mine Browns Gulch – tributary of Mineral Creek Mine waste removal and disposal in pit w/impervious cap. 2004 F.S.: $800,000 Reduce metal and acidity from leaching into Mineral Creek.
U.S.F.S. Bonner Mine Middle Fork of Mineral Creek Small scale test of biochar for metals removal of AMD 2011 F.S. $ ? MSI $ ?  
U.S. EPA Red & Bonita Cement Creek Opened up and explored mine workings Installed Bulkhead 2011-2013 2015 EPA: $300,000 $800,000 Removed blockage and secured mine entrance. Explored for remediation. Installed bulkhead
U.S. EPA Gold King Cement Creek Piped discharge to Gladstone for treatment 2015 EPA: $1.5 mil-lion installation; $16,000/week operation 95% reduction in metal loading from Gold King Mine. Treating approx. 550 gpm