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.
2023 Dam Inspections/Review Tierra Group completed a site visit to inspect three tailings storage facilities (TSFs) and the Evaporation Pond. In addition to the site visit and dam inspections, design and monitoring reports (prepared by others) were reviewed for each…
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 performed an initial site visit to Coeur Mining’s Palmarejo Mine to conduct dam safety inspections of the tailings storage facility, environmental control dam, water diversion dam, and water diversion channel. Prior to the site visit, Tierra Group reviewed…
Tierra Group performed a forensic study to determine the cause for volumetrically non-compliant leakage volumes occurring in the heap leach facilities leak detection system. Tierra Group reviewed the facility design, engineering and construction quality assurance (CQA) information, construction as built…
Tierra Group International, Ltd. participated as the geotechnical lead engineering firm for the Copperstone Project Pre-Feasibility Study (PFS) in Arizona, U.S.A. Tierra Group was responsible for tailings and waste rock storage, water management and underground geotechnics design and cost estimates…
Tierra Group provided Tailings Stewardship Services for TSFs and water dams at the Cadia, Terfer, and Red Chris properties. Responsibilities included data/report review; identifying and assisting the client with managing risks, liabilities, controls, and reporting; evaluating progress towards GISTM compliance;…
Robinson Mine Tailings Impoundment Audit Prior to joining Tierra Group, our Team completed a third-party tailings impoundment audit. The audit included reviewing operational procedures, monitoring, design, and future tailings storage planning. Produced an audit report for company’s internal use. (Tetra Tech,…
Tierra Group provides Tailings Stewardship Services for the Marlin Mine Tailings Storage Facility. Tierra Group performed a 5-year Dam Safety Review consistent with the Canadian Dam Association protocols, a Facilitated Risk Assessment, site training and in depth inspections of management…
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…
Don Mario Mine is an open pit gold/copper mine located in the Chiquitos Province, Santa Cruz, Bolivia that has been operating since 2002 and currently produces 2700 tpd mill throughput. Conventional tailings are transported and deposited in a high-density polyethylene lined geomembrane valley…
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…
Dry Stack Tailings Storage Facility Design Tierra Group supported construction of the San Albino Mine in Nueva Segovia, Nicaragua. Tierra Group designed a dry stack drum filtered-tailings storage facility. A siting study optimized the dry stack location and minimized CAPEX and OPEX.…
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