Suboxic Evaluation of In-Pit NAG Mine Rock Backfill

Okane Consultants

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BackgroundLocated in a historically mined region since 1918, the Tenas Project is set to produce approximately 800,000 tons of steelmaking coal annually over a 25-year lifecycle, encompassing construction, operations, and reclamation. Okane was engaged by Telkwa Mining Ltd. to design and develop source terms for a number of scenarios of backfilled non-acid generating (NAG) mine rock, employing a bottom-up construction … Read More

Cover System Design for PAG Mine Rock

Okane Consultants

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BackgroundLocated near Wells, British Columbia, the Bonanza Ledge gold mine (which ceased operations in July 2022) has made a positive impact on the local community and economy. In collaboration with Osisko Development, Okane developed an Issued For Permitting design for the closure of the mine’s open pit. This design is submitted for approval to both the Ministry of Energy, Mines, … Read More

Innovative Suboxic Design for a Mined Rock Stockpile (MRS)

FBC Support

Year 30 Suboxic model (Okane Archive)

BackgroundOkane led the modelling, design, and performance monitoring of a mine rock stockpile (MRS) for suboxic conditions. The goal was to improve source term control and water quality concerning selenium, sulfate, nitrate, and other contaminants of interest (COIs).ApproachOkane’s approach integrated modelling, design, and performance monitoring in an iterative process to produce an oxygen-limiting landform design (i.e., suboxic design). Significant enhancements … Read More

Investing in Communities

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Okane Consultants mine closure elk valley

Background North Coal’s Michel Coal Project near Sparwood, British Columbia is anticipating producing 2 million clean tonnes of high-quality steelmaking coal per year. With a 25-year mine life and location within the asserted traditional territory of the Ktunaxa Nation, North Coal believes in investing responsibly and engaging the communities affected early on. They are committed to working with the leadership … Read More