Statement of Qualifications

Earth and its environment provide the natural resources necessary for life. It is mankind’s most precious commodity, whose resources are finite, yet necessary to sustain and expand society. Using Earth’s natural resources modifies the environments natural balance creating both positive and negative impacts. The key to environmental management is balancing the effects of mankind’s earthly modifications to promote life while minimizing impacts harmful to achieving environmental balance. With respect to mankind’s natural resources (excluding water and air), it is said, “If it can’t be grown, it must be mined”. Think about it. It's a given. Developing Earth’s natural resources requires human interaction with the Earth and its environment. Tierra Group assists our customers to produce Earth’s natural resources in a way that minimizes harmful impacts to the environment, while maintaining a balanced sustainability, for continued beneficial uses. Tierra Group’s areas of environmental expertise include:

  • Baseline Studies
  • Environmental Assessments (EA)
  • Environmental Impact Studies (EIS)
  • Permitting
  • Environmental Monitoring
  • Forensics
  • Mined Land Reclamation and Closure

Tierra Group has performed our services on six continents in arid and temperate to extreme climates including;

  • Tropics
  • Semi-Arid and Arid
  • Mediterranean
  • Humid (Sub-Tropical and Continental)
  • Coastal Marine
  • Sub-Artic
  • High Altitude (above 4,000 masl)
  • Mountainous Terrain

By applying our forward thinking geotechnical, water resources, geologic hazards, and civil engineering expertise, Tierra Group has assisted our clients in successfully producing Earth’s natural resources while minimizing environmental impacts and creating balance in our diverse and precious environment.


Select Environmental Projects

New Jersey Mill TSF Raise

Tierra Group completed the design for two 3-meter upstream raises to an existing paste tailings storage facility at New Jersey Mining Company’s New Jersey Mill site near Kellogg, Idaho. Work included performing a cone penetration testing (CPT) investigation of the…

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San Francisco Mine

Tierra Group conducted geo-electrical testing to locate leaks present in the geomembrane liners underlying a Solution Conveyance Canal, Sumps 1 and 2, and the Intermediate Pond at Timmins Gold Corp’s San Francisco Mine in Sonora, Mexico. Leak detection testing procedures…

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Los Lirios Project

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…

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Minera Plata Real | Los Gatos TSF Phase 2

Tierra Group designed a raise of the tailings storage facility (TSF) and provided construction quality assurance for the Los Gatos project in Chihuahua, Mexico.

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Lost Creek Project

Tierra Group is assisting Millcreek Mining and Black Mountain Sand with the preparation of permitting documents for the Lost Creek Project; including a preliminary Stormwater Management Plan, preliminary Groundwater Monitoring Plan, and general permitting exhibits. Tierra Group conducted a site geotechnical…

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Topia Mine

Topia Mine Phases 1-3Tierra Group supervised the first 3 phases of Geologic Mapping and Instrumentation Installation and developed a Mechanically Stabilized Earth Wall Design at Great Panther Silver’s Topia Mine in Durango, Mexico.

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Morelos Mine

Tierra Group designed and implemented a stability and safety monitoring plan for Torex Gold’s Morelos Mine dry stack tailings storage facility (TSF). The monitoring plan includes installing inclinometers and vibrating wire piezometers, and training operations staff to download instrumentation readings.…

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Anglo American Quellaveco

Tierra Group supervised a geotechnical and hydrogeologic drilling investigation program at Anglo American’s Quellaveco Mine in the Moquegua Region of Peru.

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Buenaventura Photogrammetry Study for El Brocal Mine

Tierra Group developed a photogrammetry study and basic civil design for mining facilities layout at El Brocal Mine.

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Goldstrike Mine

Engineer of Record Barrick’s Goldstrike Mine processes 30,000 tons of gold ore per day from its combined open-pit/underground operations located in the historic Carlin Trend in Nevada, U.S.A. Goldstrike’s tailings are stored in the North Block Tailings Disposal Facility (NBTDF).…

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Collection Pond Washdown Pad IFC Set

Tierra Group designed a concrete washdown pad connecting to the site’s existing collection pond. The pad was designed to allow the site to wash vehicles prior to them being approved to leave site.

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Buritic√° Tailings Stewardship & Cyanide Speciation

Tierra Group provided Tailings Stewardship Services for Continental Gold’s Buriticá Project in Antioquia, Columbia which included permitting support, Third-Party Review and construction and operations support. Tierra Group oversaw the development of a 2D hydrodynamic model to support the design of…

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