Survey Information Details

1.0 Executive Summary

Highveld Mining Services contracted The Safety Network (Africa) (Pty) Ltd to conduct a heat stress survey at Witbank Workshop, Erf 1123, Ferrobank, Witbank. The survey was conducted on 18 Sept 2026 by Nomsa Dlamini.

Two positions exceeded the applicable WBGT TWA-OEL for the work rate performed.

2.0 Purpose Of The Survey

1. Measure the wet bulb globe temperature index at representative work positions
2. Determine the metabolic work rate of employees at each position
3. Compare exposures with the heat stress TWA-OEL
4. Recommend heat stress control and management measures

3.0 Contents Of Report

1. 1.0Executive Summary
2. 2.0Table Of Contents
3. 3.0List Of Tables, Figures And Diagrams
4. 4.0List Of Terms And Abbreviations
5. 5.0Introduction
6. 6.0Monitoring Methods And Procedure Followed
7. 7.0Results And Discussion
8. 8.0Recommendations
9. 9.0Conclusion
10. 10.0Indemnity And Signatures
11. 11.0References
12. 12.0Annexures To The Report

4.0 Instruments Used

5.0 Results And Discussion

Two positions exceeded the applicable WBGT TWA-OEL for the work rate performed.

6.0 Recommendations

1. Implement a work-rest regime at the boiler house and outdoor yard
2. Provide cool potable water and shaded rest areas
3. Include exposed employees in heat stress medical surveillance
4. Re-survey during the hottest month of the year

7.0 Conclusion

Heat stress requires active management at two positions through work-rest scheduling and hydration control.

8.0 Annexures To The Report

• Annexure A — Certificate Of Approval As A Department Of Employment And Labour Approved Inspection Authority
• Annexure B — SAIOH Certificates Of Surveyor And Technical Signatory
• Annexure C — Equipment Calibration Certificates
• Annexure D — Raw Measurement Data
• Annexure E — Photo Log
• Annexure F — Site And Floor Plans