Mina Sweetwater

Project Highlights:

  • Tramitación de Permisos
  • Planes de Operaciones de Relaves

Tramitación de Permisos de Mina Sweetwater

El equipo de Tierra Group empezó trabajando en la mina de Sweetwater en 1993 asistiendo con obteniendo el permiso y desarrollando estrategias de la gestión de Embalse de relaves para la mina. También diseñamos e instalamos un innovador sello interno para reparación de los dañados decanta el conducto de descarga de la mina. El equipo de Tierra Group empezó trabajando en Sweetwater otra vez en 2015 diseñando un depósito de relaves (TSF) de presa de 5 pies de altura y un recrecimiento de vertedero. Los retos del diseño único fueron superados con una investigación de campo integral incluyendo CPT y perforación de barrena de vástago hueco. Se realizaron análisis de licuefacción e incorporados en el diseño de recrecimiento de aguas arriba. Un modelo de hidrología difícil se completó y un recrecimiento del vertedero existente fue diseñado. El diseño del recrecimiento fue aprobado por Consejo de Seguridad de Presas y Reservorios MDNR en marzo de 2016. La construcción se completó en 2017 temprano con apoyo con Tierra Group supervisando las actividades de construcción y evaluación de cambios de diseño propuestos. Un informe de As-Built se completó en abril de 2017 conforme a requisitos de MDNR. Tierra Group continuó su apoyo a Sweetwater mediante el desarrollo de un plan de deposición, balance de agua, estudio de hidrología y modelado de geotécnica para el diseño recrecimiento de la presa de relaves adicional.

Project Highlights:

  • Tramitación de Permisos
  • Planes de Operaciones de Relaves

Similar projects

Big Ledge Mine

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…

VIEW PROJECT

Sterling Mine

Sterling Mine is an underground gold mine in southern Nevada which recovers gold through heap leaching and a carbon adsorption-desorption-recovery (ADR) plant. Tierra Group team members have a long history at Sterling, starting with heap leach pad final permanent closure…

VIEW PROJECT

Goldfield Bonanza Project

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…

VIEW PROJECT

2020 TSF Annual Dam Inspection

Tierra Group completed an annual dam safety inspection (DSI) to meet both Nevada Division of Water Resources (NDWR) Dam Safety and the client's requirements. The DSI included reviewing monitoring data, a dam and appurtenant structures inspection, and a DSI report.

VIEW PROJECT

Esmeralda Mill

Tierra Group was contracted by Waterton Global Mining Company to prepare the FPCP for TSF No.1 at the Esmeralda Mine. TSF No.1 covered approximately 100 acres, included a rockfill embankment with a maximum height approximately 60 feet, and stored gold tailings. Work…

VIEW PROJECT

Bald Mountain Mine

Tierra Group assisted the Bald Mountain Mine Project Development Team with an evaluation of potential uses for spent ore on legacy heap leach facilities. Tierra Group completed a collaborative trade-off study with site personnel evaluating spent ore use as overliner…

VIEW PROJECT

Lost Creek Project | USA

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…

VIEW PROJECT

Fire Creek Mine

Tierra Group conducted a siting analysis for a new WRSF to support the mine’s future production increase as part of the Preliminary Feasibility Study (PFS). In addition to supporting the PFS, Tierra Group assisted in preparing and submitting several engineering…

VIEW PROJECT

Tailings Review & Assurance Audit | Montana

Tailings Management Assurance Review Tierra Group served as the Lead Auditor and conducted MARs for the TSFs at this confidential project. Tierra Group reviewed all available facility documentation, including OMS Manuals, EAPs, design reports, As-Built Reports, annual inspection reports, and other…

VIEW PROJECT

Midas Mine

The Midas Mine is located in northern Nevada, and is owned and operated by Hecla Mining Company.  The mine is an underground mine with an operating mill. The mine’s existing tailings facilities are nearing their end of operating life and…

VIEW PROJECT

Rhyolite Ridge

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.

VIEW PROJECT

Cove Project RIB Geotechnical Investigation

Tierra Group supported proposed Rapid Infiltration Basins Geotechnical Investigation at Au-reka Gold Corporation’s Cove Project in Nevada. Investigation included borehole drilling, test pits, infiltration testing and permeability testing.

VIEW PROJECT