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SUMMARY

ACARP Project C35018 Reactive Ground Testing.
Rolleston samples of confidential data.

Testing of samples using AEISG code testing for reactivity over a period of 7 days.

Conducted For: Rolleston Coal - GLENCORE

Requested By: Nicole Phillips

Report No.: QMR14-07-23

Results:                          

Table 1 Received samples

Each sample was assessed for reactivity risk based on pH, carbonate content, reactive sulphide content and coal content using the QMR Reactive Ground Test (refer to Table 2). Two sample that was tested had a reactive sulphide content above trace. Theses samples also contained coal which inhibited a reaction with nitrates (refe to Figure 1)

Table 2 Results for Testing

Figure 1 – Sample C13106_ER02 under microscopic analysis showing <10ⴎm bands of pyrite throughout the coal.

Conclusion:

All samples were found to be not reactive.

Assessed By:

Dr G. Cavanough

Date:

12th July 2023