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Antamina Mine, Peru
Waste Dump Cover Study for Closure Planning
East Dump Cover Study Phase II - Site-wide soil characterization program to identify low permeability silt and clay material; conduct rooting surveys; physical and hydraulic property testing. Developed a soil property GIS database;. Conducted unsaturated flow modeling to evaluate different cover system designs
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Antamina Mine, Peru
Waste Dump Cover Study for Closure Planning
In-situ Monitoring of an Active Waste Rock Facility. Design of in-situ monitoring system to assess solution and air flow dynamics in an active waste rock facility. Drilling and coring to determine waste rock physical and geochemical properties. Construction, calibration and installation of temperature, oxygen content, pressure sensors, and suction lysimeters.
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Lagunas Norte Mine, Alta Chicama, Peru
Waste Rock Cover System Design and Optimization
Design of multi-layer cover system test panels; design and implementation of multi-year cover system performance monitoring program. In-situ and laboratory hydraulic characterization of cover and waste rock material. Unsaturated flow modeling to estimate net percolation through the cover system.
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Pierina Mine, Huaraz, Peru
Alternative Cover System Evaluation
Evaluate net percolation reduction from alternative cover system designs using geosynthetic and natural cover system designs. Development of a calibrated unsaturated flow model to predict long-term cover system performance. Use of Multiple Accounts Analysis to evaluate different alternative cover systems.
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Pierina Mine, Huaraz, Peru
Waste Rock and Heap Leach Cover System Performance Evaluation
Design of multi-layer cover system test panels; design and implementation of multi-year cover system performance a monitoring program. In-situ and laboratory hydraulic characterization of cover and waste rock material over time.
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Miami Mine, AZ, USA
Heap Leach Facility Closure Design
Design and implement material characterization program to identify potential cover system borrow material. Development of cover system design to reduce net percolation and control erosion. Unsaturated flow modeling to evaluate different cover system alternatives. Erosion modeling to evaluate borrow sources.
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Mission Mine Reclamation Trust Panel
Mission Mine, AZ, USA
Tailing Facility Closure Design
Design and implementation of characterization program to identify non-reactive waste rock for use as borrow material for 500 ha tailing facility closure. Erosion modeling to evaluate borrow material as source for rock armor on different slope lengths. Develop tailings closure design with design engineers.
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