Boral — Corporate Update (March 2021)
30 slides from Boral's corporate update, Mar 23, 2021
Slide 1: Berrima Colliery - Closure Working Group Meeting #9
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Berrima Colliery - Closure Working Group Meeting #9 >Welcome Online/Boral Cement Procurement Training Room 23 March 2021
Slide 2: Agenda
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Agenda 1. Welcome and Apologies - Introductions 2. Terms of Reference - Conduct of CWG Members 3. Review of minutes & actions 4. Water Quality Results update - Greg Johnson 5. Water treatment update- Greg Johnson/David S
Slide 3: Welcome - CWG Representatives, Apologies & Guests
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 1. Welcome - CWG Representatives, Apologies & Guests ● Boral - Girish Yadwad, Greg Johnson, David Spears, Jenny Smilie (apology) ● Resource Regulator - Greg Kininmonth, Peter McMillan ● Environment Protection Authority -
Slide 4: Terms of Reference - Code of Conduct of CWG Members
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 2. Terms of Reference - Code of Conduct of CWG Members Titlefefefefeffff4g45g4545
Slide 5: Review of Minutes – suggested amendments
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 3. Review of Minutes – suggested amendments Titlefefefefeffff4g45g4545
Slide 6: Review of Minutes – actions
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 3. Review of Minutes – actions Summary of Meeting Actions: 1. Amend river graphs to include the adit discharge results between the 100 m up and 300 m down sample results. – see water quality update. 2. Make available the
Slide 7: Review of Minutes – actions – Seam Contours
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 3. Review of Minutes – actions – Seam Contours Titlefefefefeffff4g45g4545
Slide 8: Surface Water Monitoring Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 4. Surface Water Monitoring Update Titlefefefefeffff4g45g4545
Slide 9: Water Quality Guidelines
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Water Quality Guidelines In order to interpret and give context to the water quality monitoring results from the Colliery we are now including details, where applicable, against the Australian Water Quality Guidelines fo
Slide 10: Adit discharge update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Adit discharge update Volume discharged – 1.8-1.9 ML per day, down on long term average of 2.6 ML pH – at the low end of range EC – trending towards 1000us/cm Titlefefefefeffff4g45g4545
Slide 11: Adit discharge update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Adit discharge update Iron – remains low, below laboratory detection levels. Manganese – slight trend up, Titlefefefefeffff4g45g4545 within historical mining release levels
Slide 12: Adit discharge update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG Adit discharge update Nickel –still trending up, above historical levels. Titlefefefefeffff4g45g4545 Zinc – still trending up, above historical mining discharge levels Commentary – pH, while within range, has trended dow
Slide 13: River Quality Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG River Quality Update Titlefefefefeffff4g45g4545
Slide 14: River Quality Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG River Quality Update (note: River monitoring has reverted back to licence points every 2 months) pH – Mine discharges are not altering river pH. Titlefefefefeffff4g45g4545 EC – Mine discharges are influencing river elect
Slide 15: River Quality Update - Cont.
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG River Quality Update - Cont. Iron – levels managed in discharge, other factors impacting iron in waters. Titlefefefefeffff4g45g4545 Manganes
Slide 16: River Quality Update - Cont.
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG River Quality Update - Cont. Nickel – Mine discharges appear to be influencing levels within the mixing zone. Returning to WQ guidelines (95% protection) within the mixing zone. River water meeting drinking water guideli
Slide 17: River Quality Update - Cont.
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG River Quality Update - Cont. Sulphate – The mine appears to be influencing sulphate levels immediately downstream, however there are also other natural sources downstream influencing. Titlefefefefeffff4g45g4545 Commentar
Slide 18: Underground Water Treatment Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 5. Underground Water Treatment Update • As noted last meeting the pH of mine waters has been trending down • Testing of waters underground has indicated that the pH behind the lower bulkheads has deteriorated, with the l
Slide 19: Bulkhead Water level update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 5.1 Bulkhead Water level update Discharge constant at 1.6-1.75ML/day January 2021 to March 2021
Slide 20: Stage MOP Status
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 6. Stage 2 MOP Status ● The Stage 1 Closure MOP covers the period ending 31 December 2020 or until such time as the Stage 2 Closure MOP is approved. ● Stage 2 Closure MOP submitted in November 2020 which was to cover the
Slide 21: Proposed Long Term Pit Top Treatment Solution Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 7. Proposed Long Term Pit Top Treatment Solution Update The proposed pit top treatment solution will require appropriate development approvals. Boral will seek approval through the Department of Planning Industry and the
Slide 22: Long Term Pit Top Treatment Proposed Location
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 7. Long Term Pit Top Treatment Proposed Location Titlefefefefeffff4g45g4545
Slide 23: Environmental Protection Licence/ CCL 748 Updates
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 8. Environmental Protection Licence/ CCL 748 Updates EPL 608 No updates. CCL 748 2020 AEMR submitted to Resources Regulator late Feb 2021 Stage 2 Closure MOP submission requires updated hydrological study, Stage 2 MOP ex
Slide 24: Mandemar Lane Update - Bore Locations
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 9. Mandemar Lane Update - Bore Locations Titlefefefefeffff4g45g4545
Slide 25: Mandemar Lane Groundwater Monitoring - Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 9. Mandemar Lane Groundwater Monitoring - Update ● Belbin Bore (below mine workings) – Belbin bore indicates that the overall groundwater level has declined slightly since September 2020. However, the bore has been pumpi
Slide 26: Mandemar Lane Groundwater Monitoring - Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 9. Mandemar Lane Groundwater Monitoring - Update ● B63 Vibration monitor – 3 sensors. 85m upper Hawkesbury sandstone, 133m lower Hawkesbury sandstone, 177m zone above coal seam. ➢ Deepest sensor at 177m indicates the str
Slide 27: Communications Update
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 10. Communications Update •Objective: Continue the flow of information with regard to the closure plan updates and activity, and provide forums for the community to easily raise and discuss questions with Boral. •Deliver
Slide 28: Other business
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 11. Other business Titlefefefefeffff4g45g4545
Slide 29: Next meeting date
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG 12. Next meeting date Proposing - mid June 2021 Location – Procurement Building Berrima Cement and Online Titlefefefefeffff4g45g4545 For further information on the Berrima Colliery Closure process please feel fee to visi
Slide 30: DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG
DRAFT for CWG Pre-meeting Review – Not for external distribution outside of CWG