Tierra Group completed a Tailings Assurance Audit (TAA) for a closed Tailings Storage Facility (TSF). The TAA was completed to ensure the TSF and site operations complied with the Company's Tailings Management Standard, which closely mirrors Global Industry Standard on Tailings Management (GISTM) requirements. The TAA included a site visit, document review, and interviews with site personnel to determine compliance.
Tierra Group provided Tailings Stewardship Services, including a dam inspection, slope stability review and operational improvements. The Guanacevi tailings storage facility, located in Durango, Mexico, consists of dry-stack (Press filtered) tailings placed atop a conventional (slurry) tailings storage facility.
Glencore’s Antapaccay mine is located in the Espinar province, Cuzco, Perú. Tierra Group logged geotechnical, geological and geo-mechanical properties of drill core advanced in Antapaccay's Northern Pit. Approximately 6,000 meters of core were logged. Specific samples were selected for geotechnical…
Tierra Group served as an independent subject matter expert for the Quinsam Coal Corporation (QCC) Independent Tailings Review Board (ITRB) in British Columbia, Canada. The annual review process included review of existing documents, a site visit, and collaborative meetings with…
Hollister Waste Rock Facility Storage Tierra Group performed a third-party peer review of a Waste Rock Storage Facility (WRSF) design at Klondex Mines’ (Klondex) Hollister Mine in northern Nevada. The WRSF, as designed, involved lining the mine’s existing West Pit…
Tierra Group completed a siting study to evaluate six potential sites for a paste TSF. Tierra Group prepared civil layouts for each TSF, determining embankment fill volumes, evaluating required diversions for upstream catchment areas, and pipeline corridor layouts. Tierra Group…
Tierra Group provided a desktop and field review of B2Gold’s Santa Pancha Mine hydrogeology. The review identified data gaps in site data and provided recommendations for improve an existing site hydrogeology model and improve underground water management. The hydrogeologic model…
Tierra Group's Matt Fuller, LEG, P.Geo. serves as one of three ITRB technical experts providing technical assurance of the Engineer of Record’s design and monitoring compliance with BC regulations, the Newmont Corporate Tailings Standard, and industry best practices.
Tierra Group completed a TAA for the North Mara Tailings Storage Facility (TSF). The TAA was completed to ensure the TSF and site operations complied with Barrick’s Tailings Management Standard, which closely mirrors the Global Industry Standard on Tailings Management (GISTM)…
Previous to Tierra Group, our Team performed a geotechnical forensics assessment, which determined that spent ore from an on-off leach pad operation had liquefied causing a debris flow, which threatened inundating a major river basin. A preventative detention buttress was…
Tierra Group provided technical direction and review of the Gediktepe Heap Leach Facility (HLF), ponds, and waste rock dump facility designs. Tierra Group will also provide CQA review during HLF construction.
Tierra Group provided Tailings Stewardship Services including a dam inspection, slope stability analysis review and operational improvements for Endeavour Silver’s Bolanitos tailings storage facility.
Midas Gold’s project is located in the remote central Idaho Rockies near the town of Yellow Pine. It is a brownfields gold-antimony project featuring three open pits and an anticipated 22,000 tpd plant throughput, along with challenging terrain and environmental…
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