Tierra Group prepared a Heap Leach Facility (HLF) design to an FS level, including a geotechnical investigation, HLF design basis and criteria, hydrology and water balance, geotechnical engineering analysis, specifications, material quantities, and design report.
In addition, Tierra Group prepared a waste rock stockpile design for the waste generated in the open pit.
Lode-Star Gold, Inc., in advance of their proposed mining operations, submited a Physical Separation Facility application with the State of Nevada for their Goldfield Bonanza Project located in Esmeralda County, Nevada. The mine, located in the historic high-grade gold-bearing district of…
Tierra Group developed a water balance model to track flows into a backfilled pit at the closed Big Ledge Mine Barite Operation near Wells, Nevada. The Model was used to determine pipeline sizing to a remote treatment pond that is…
East Boulder Tailings Independent Review Panel (2018-present) Tierra Group reviewed a TSF design to support an NI 43-101 compliant Feasibility Study. The TSF design incorporated a paste tailings disposal method in an environmentally sensitive fisheries habitat. Tierra Group sits on the Independent…
Tierra Group represented Oracle Ridge Mining as the Qualified Person for portions of the feasibility-level design including the Dry Stack Tailings Storage Facility (TSF) Design, Site-Wide Stormwater Management, Water Supply Pipelines, Haul Road and Access Road Design Improvements, and the…
Tierra Group prepared a Heap Leach Facility (HLF) design to an FS level, including a geotechnical investigation, HLF design basis and criteria, hydrology and water balance, geotechnical engineering analysis, specifications, material quantities, and design report. In addition, Tierra Group prepared…
Tierra Group was selected to assist Goldcorp with global Tailings Stewardship Strategy (TSS) implementation at all of Goldcorp’s active tailings sites in Latin America (Mexico, Argentina, and Guatemala). Tierra Group worked in conjunction with Goldcorp and another global engineering consulting…
Los Lirios is a brownfields mine development project in southern Honduras. Los Lirios lies adjacent to an extensive shrimp-farming industry which raises water quality and supply awareness. Tierra Group is implementing a pre-development baseline water characterization study for the proposed…
The Lagunas Norte Mine, operated by Barrick Misquichilca S.A., is an open pit gold mine located in the Quiruvilca district, Santiago de Chuco province, La Libertad department, Perú. The main study objective was to evaluate the volume of effluent discharge…
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…
Tierra Group updated the County’s Standard Operating Procedures (SOPs) for Municipal Operations to maintain the County’s compliance with the requirements for stormwater discharges from the County’s municipal separate storm sewer system (MS4) under the Colorado Discharge Permit System (CDPS). Tierra…
Tierra Group was commissioned by Doe Run to design a new tailings storage facility at the Brushy Creek Mine. Tierra Group completed a geotechnical investigation including boring, classifying, and sampling soil and rock. Trade-off studies were performed to minimize construction…
Tierra Group is providing water management and geotechnical engineering services to support a Preliminary Feasibility Study at the Rhyolite Ridge Lithium Mine Project in Nevada.
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