North Tailings Remediation FEL 3 Study

Drilling equipment and field crew supporting North Tailings remediation work.

Project Overview

Location: Sudbury, ON
Client: Vale
Services: Engineering, Geotechnical Engineering
Sector: Mining

Project Description

TULLOCH completed a geotechnical and hydrogeological investigation to support rehabilitation of an existing seepage collection dam and pond and the design of a blast-enhanced interceptor trench at a Vale tailings site in Sudbury. The study advanced the work to a feasibility level and developed recommendations for detailed design and continued monitoring.

The assignment combined drilling, rock and soil sampling, packer testing, groundwater instrumentation, seepage and slope-stability modelling, hydrogeological assessment, dam-rehabilitation design, trench design, and preparation of preliminary drawings, schedule, and cost estimates.

Scope of Services

  • Geotechnical drilling with soil and rock core sampling
  • Packer testing in bedrock
  • Groundwater monitoring wells in overburden and bedrock
  • Dam-rehabilitation feasibility design
  • Seepage and slope-stability modelling
  • Groundwater modelling and hydrogeological assessment
  • Groundwater and surface-water monitoring and testing
  • Blast-enhanced interceptor trench design
  • Preliminary design drawings, schedule, and cost estimates
  • Feasibility-level design report and recommendations