Golden Grove Tailings Storage Facilities (TSF 1 & TSF 3)

ATC Williams was engaged in mid-2020 to provide Construction Quality Assurance (CQA), and Quality Control (QC) with respect to Civil Works required to raise TSF 1 (Raise 5) and TSF 3 (Raise 4) embankments. We performed three pre, during and post-construction stages as listed below.

Pre-construction (preparatory):

1. Prepared Issued for Construction (IFC) Technical Specification and associated Drawings
2. Facilitated trial pad sample testing and interpretation (incl. assessment of borrow materials for construction)
3. Reviewed Contractor’s Scope of Work and Construction Management Plan
4. Prepared a CQA Plan, including QA Inspection Test Plans (ITPs)

Construction:

1. Provided full-time on-site technical support and QA over the construction period
2. Conducted material compliance testing in accordance with the Technical Specification
3. Design Engineer conducted interim inspections during the construction period
4. Reviewed and sign-off of Contractors ITPS
5. Held regular meetings with Superintendent (29Metals) and the Contractor
6. Provide office-based support, including issuing site instructions, responding to technical queries, and providing recommendations to mitigate non-conformances

Post-construction:

1. The Design Engineer conducted a practical completion inspection
2. Produced a construction report for each embankment raise, including As-builts Drawings and Certificates of Compliance