Bozshakol TSF, Kazakhstan

Delivery of a multi-disciplined package


KAZ Minerals




2020 - 2021

Central Asia

Since 2009, ATC Williams has been engaged by KAZ Minerals to provide design studies and ongoing technical support during operation and construction within the tailings, civil, geotechnical, water and mechanical fields for their Tailings Storage Facilities (TSFs).

The Bozshakol TSF project is located in the Northern Province of Kazakhstan, close to the Russian border. Bozshakol is a large-scale, open pit copper mine. It is the largest single copper mine development in Kazakhstan in terms of volume and value.

— Features and solutions

ATC Williams has provided a plan over the Life of Mine (43 years) to contain 1,265 Mt of tailings within two storage facilities which will eventually cover approx. 55 km2. A range of alternative tailings management, deposition and storage options have been considered to optimise the costs and construction work the client must undertake.

The main challenge is tailings deposition and decant water recovery during winter when the temperature is constantly below -10° for more than three months each year.

ATC Williams finalised a large package of multi-discipline tasks undertaken from April 2020 to May 2021 (over $1M package). Our Tailings and Water teams were able to work cohesively and remotely during the ongoing 2020 COVID-19 lockdown to deliver the following tasks across our service areas successfully:

  • Rheology Testing
  • Hydraulic Assessment
  • Geotechnical Investigation
  • Hydrogeology Study
  • Basic Design (Civil, Geotechnical)
  • Basic Design (Mechanical)
  • Water Balance Modelling
  • Detailed Design (Site 2 Stage 3 Embankment Raise)
  • Dam Break Analysis


This is a unique project in a very cold environment. ATC Williams provides design and support across many interconnected engineering disciplines.

  • Ongoing technical support to KAZ Minerals regarding various aspects related to Bozshakol Tailings Storage Facilities (TSFs)
  • TSF Site 2 Stage 3 works packages finalised in 2021
  • Construction works for Site 2 Stage 3 embankments are currently underway
  • Over the Life of Mine, the Bozshakol Mine is expected to produce 1,265 Mt of tailings stored in TSFs, which cover approx. 55 km2

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