Amphos 21

Consulting and Engineering for the Mining Industry

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Amphos 21 offers efficient and quantitative solutions for the mining industry, particularly oriented to the water cycle, supported by 25 years of experience.

  • Exploration and exploitation of surface and groundwater resources.
  • Development of conceptual and numerical models in porous and fractured media.
  • Water Monitoring.
  • Characterization of hydrology and climate conditions.
  • Water balance and recharge estimation.

  • Simulation and prediction of water inflows and qualities for the life cycle of mining components (open pits, underground mines, waste rock dump, mine tailings, leach pads).
  • Water balance in mining components and integrated water management plans.
  • Dewatering of open pit and underground mines.
  • Hydraulic engineering.
  • Implementation of geothechnical and hydraulic instrumentation.

  • Characterization studies of ARD and ML.
  • Geochemical monitoring and control.
  • Flow forecasting modeling and chemical composition of effluent.
  • ARD and ML prevention, mitigation and management plan with implementation of geochemical criteria.
  • Efficient engineering design and management using hydrogeochemical criteria for waste dumps and tailing deposits.

  • Characterization of contaminated sites and environmental liabilities.
  • Quantitative risk analysis of health and environment.
  • Stratategy and implementation of the remediation.
  • Management of environmental liabilities and hazardous mining waste.

  • Strategies for optimizing and identifying opportunities in the water cycle.
  • Evaluation and optimization of processes in acidic water treatment plants.
  • Geochemical evaluation for the heightening of tailings dams.
  • Evaluation of the management and processes for the optimization of leaching pads.

  • Elaboration of mine closure plans.
  • Evaluation of hydrological and chemical stability of components.
  • Waterproofing and sealing of underground galleries.
  • Evaluation of encapsulation, coverage and revegetation systems.
  • Hydraulic infrastructures, water management systems and treatment systems.
  • Conceptualization of passive treatments.
  • Research, development and innovation in sustainable closure alternatives. 
  • Expert estimate closure costs.

  • Environmental baseline.
  • Support on environmental Impact Assessment.
  • Authorizations, files and letters of relevance.
  • Environmental permitting.
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Full Contact Information
Amphos 21:
Amphos 21 Consulting Perú S.A.C.
Website: :
Lima Office:
Jr. Pietro Torrigiano 396
San Borja, Lima, Peru, 41
Phone: : +51 1 592-1275
Contact: : Eduardo Ruiz
Email: :

Santiago Office:
Av. Nueva Tajamar 481 of. 1005 (Torre Sur)
Las Condes, Santiago, Chile, 7550099
Phone: : +56 2 2799 1630
Contact: : Juan Castaño
Email: :
Barcelona Office:
Paseo de García Faria, 49-51
Barcelona, Spain, 08019
Phone: : +34 93 583 05 00
Contact: : David Arcos
Email: :