The British Columbia Technical and Research Committee on Reclamation - - PowerPoint PPT Presentation

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The British Columbia Technical and Research Committee on Reclamation - - PowerPoint PPT Presentation

Aug 24, 2022 113 likes •608 views

Presented by The British Columbia Technical and Research Committee on Reclamation 34 th Annual Mine Reclamation Symposium September 22, 2010 Courtenay, BC Highland Valley Copper Highland Valley Copper Highland Valley Copper Highland Valley

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Presented by

The British Columbia Technical and Research Committee on Reclamation

34th Annual Mine Reclamation Symposium September 22, 2010 ‐ Courtenay, BC

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Highland Valley Copper Highland Valley Copper

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Highland Valley Copper Highland Valley Copper

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2009 Drill pad reclamation

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2010 Road reclamation

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Re‐establishment of small natural watercourses

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Early re‐seeding efforts

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lkh ( ) Elkhorn Quarry (2006)

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planted pre-1990 Planted pre-1990 2003 seedling placement 2005 grass establishment 2003, seedling placement 2005, grass establishment

Reclaimed waste dumps, no growth medium

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H d di f t k d Hydroseeding of waste rock dumps. Note islands of native vegetation.

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Sediment control pond Water quality monitoring

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Hazards in Michel Creek, pre‐ , p cleanup Example of materials removed from Michel Creek

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Streambank following i (A il ) construction (April 2004) Successfully revegetated streambank (August, 2010)

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R d i d d d ill b h l Red osier dogwood and willow brush layer (May 2004)

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Streambank and riparian bench after construction and seeding (2004) Successfully revegetated streambank and riparian bench ( ) (2004) (2010)

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Will th 6 ft l ti (A t ) Willow growth 6 years after planting (August 2010)

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Rough and loose surface preparation Placement of Coarse Woody Debris Debris

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Dam buttress surface, July 2010

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Natural vegetation sites Soil slinging

Borrow 3 Reclamation

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Loose and rough soil Native vegetation Loose and rough soil preparation Native vegetation encroachment

Borrow 7 Reclamation

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Waste rock surface preparation and

  • verburden placement (July, 2010)
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Resloped waste rock dump with overburden placed (August 2010) (August 2010)

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Reclamation of Tailings Dam “Brown before Green”

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Vegetated retaining berms block noise and improve visual aesthetics.

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Biosolids and pulp sludge test Biosolids application with Biosolids and pulp sludge test plots Biosolids application with manure spreader

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Poplar plantation prior to reclamation (2004) Poplar plantation (2009)

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P l l i i h i h Poplar plantation, trees up to 13 m in height (July 2009)

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Wetland establishment

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Work experience and training Work experience and training programs are part of the reclamation program.

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Bi lid li f G d t li Biosolids sampling for quality control Groundwater sampling near reclamation operations

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