Duralie Coal CCC Duralie Coal CCC Meeting Meeting Presentation – Presentation – Company Report & Company Report & Overview of Activities Overview of Activities February 2020 February 2020 Alarna Bristow Alarna Bristow Environment & Community Superintendent Environment & Community Superintendent
Table of Contents Agenda Item 7a - Progress at the Mine 1. Agenda Item 7b - Environmental Reporting 2. Agenda Item 7c - Environmental Management Plans & Monitoring 3. Agenda Item 7d - Community Complaints 4. Agenda Item 7e - Community Programs 5. 19 February 2020 2 2
1. Progress at the Mine Mining 2 nd Half 2019 No mining operations were undertaken at Duralie during the second half of 2019. Rehabilitation works continued with bulk shaping of the waste emplacement and Rogers road. AD1 Decommissioning 1 st Half of 2020 PAF re-handling works is currently out to tender with works scheduled to begin in the first half of 2020. AD1 Decommissioning and rehabilitation scheduled for completion. 19 February 2020 3 3
2. Environmental Reporting & Regulators Management Project Status Area • Duralie Coal Mine Annual Review • The Duralie Coal Mine 2019/20 Annual Review is due August 2020. The Annual Review Reporting 2019/20 will be made available to the CCC and on the Duralie Coal website. • Mining Operations Plan & • Submitted for approval to the DPI&E in December 2019 Regulator Rehabilitation Management Plan • Inspection of site scheduled for Wednesday the 29 th of January 2020 • DPI&E Inspection • Environmental Management • No changes Plans 19 February 2020 4 4
3. Environmental Management Plans & Monitoring a) Air Quality Management b) Blast Management c) Noise Management d) Water Management e) Rehabilitation Management f) Biodiversity Management g) Mine Closure Planning 19 February 2020 5 5
3a. Air Quality Management Duralie Dust Deposition - Annual Rolling Average 12 Months to January 2020 Dust (g/m 2 /month) 8.0 6.0 4.0 2.0 0.0 Jan-19 Feb-19 Mar-19 Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19 D3 D4 D5 D5A D7 D8 D9 D10 D12 D13 DP&E limit Feb-19 Heavy - 40% Dirt, 60% Polsaccharide slime Mar-19 Very Heavy - 20% Dirt, 0% Coal, 10% Vegetation, 10% Insects and 60% Polysaccharide Slime Apr-19 Very Heavy - 40% Dirt, 0% Coal, 10% Vegetation, 10% Insects and 40% Polysaccharide Slime May-19 Very Heavy - 20% Dirt, 80% Polysaccharide Slime Jun-19 Heavy - 20% Dirt and 80% Polysaccharide Slime Jul-19 Heavy - 30% Dirt, 0% Coal, 0% Vegetation, 0% Insects and 70% Polysaccharide Slime Sep-19 Heavy - 20% Dirt and 80% Polysaccharide Slime Oct-19 Heavy - 30% Dirt and 70% Polysaccharide Slime Nov-19 Heavy - 60% Dirt, 40% Polysaccharide Slime Dec-19 Heavy - 60% Dirt, 40% Polysaccharide Slime Guide to Descriptions used by Laboratory Coal : Black sharp angled grains with glossy conchoidal fractures or dull with cellular features. Dirt/Minerals : Subhedral to euhedral crystalline grains including fine sand, clay and other fine mineral particulates. Insects : Whole insects such as spiders, ants, moths or outer parts of insects including wings, legs and exoskeletons. Vegetation : Plant debris and algae including trichomes, decomposed organic matter and charred particulates showing characteristic cellular plant structures. Polysaccharide Slime : Slimy gelatinous material including decomposed soft body parts of insects and vegetation. Copper Sludge : Blue-green subhedral to euhedral crystalline salts, commonly precipitated from the copper sulphate algaecide solution. Contamination: Gelatinous material such as bird droppings • High levels in D3 and D5 due to contamination of multiple samples. Additional site D5A installed for comparison. • Due to frequent contamination of dust gauges the HVAS results should also be used when interpreting results. 19 February 2020 6 6
3a. Air Quality Management Duralie HVAS Monitoring (PM 10 ) 12 Months to January 2020 200 PM 10 (µg/m3) 150 100 50 0 6-Dec-18 4-Feb-19 5-Apr-19 4-Jun-19 3-Aug-19 2-Oct-19 1-Dec-19 30-Jan-20 -50 High Noon Twin Houses Hattam Edwards DP&E Limit Duralie HVAS Monitoring (PM 10 ) • All sites below DP&E limit. Typically low results Annual Rolling Average - 12 Months to January 2020 during winter and higher during spring/ summer. • Minor increasing trend over previous 12 months. 40 • HVAS results provide more reliable data PM 10 (µg/m 3 ) 30 compared to dust deposition results and should be referred to when interpreting dust emissions. 20 10 0 2-Jan- 2-Feb- 2-Mar- 2-Apr- 2-May- 2-Jun- 2-Jul- 2-Aug- 2-Sep- 2-Oct- 2-Nov- 2-Dec- 19 19 19 19 19 19 19 19 19 19 19 19 High Noon Twin Houses Hattam Edwards DP&E Limit 19 February 2020 7 7
3b. Blast Management Management Project Status Area • Blast monitoring • Blasting Blast activities at the DCM were completed on 17 August 2018. No further blasting is proposed until further notice. • Note: Blast Compliance: No more than 5% of total blasts for annual monitoring period to exceed an overpressure of 115 dBL or ground vibration of 5 mm/s. No blast is to exceed an overpressure of 120 dBL or ground vibration of 10 mm/s. • Note: Where no trigger is recorded the results indicate <0.22mm/s and <110.0dBL corresponding to the blast monitor settings. 19 February 2020 8 8
3c. Noise Management Management Project Status Area • Routine Monitoring • Routine quarterly monitoring of operations recommenced in Q4. Noise • Noise reports are made available on the Duralie Coal website. Monitoring • Real-Time Noise Management • During Q4 2018 operations at the Duralie Mine ceased. Noise • In accordance with the revised NMP real-time noise monitoring has now ceased whilst Management Plan no evening or night-time operations are undertaken. 19 February 2020 9 9
3d. Water Management Management Project Status Area • Annual water balance review. • The 2019 annual site water balance review is currently being prepared. A summary will Site Water Management be included in the Annual Review. • Routine monitoring • Sporadic and low rainfall conditions persisted through spring/summer 2019/20. Surface Water • Routine surface water monitoring completed. All sites generally within Duralie water quality performance indicators. No obvious trending towards performance indicators. • Irrigation • No irrigation is currently being undertaken in the first flush areas. • Irrigation has commenced on the PAF waste emplacement area in anticipation of the PAF rehandling works. • Routine monitoring • Groundwater Routine monitoring has been completed and the results continue to indicate consistency with the model trends in the Environmental Assessment. 19 February 2020 10 10
3d. Water Management Duralie Surface Water Monitoring - pH Duralie Mine Site - Monthly Rainfall 6 months to January 2020 10 300 9 8 200 7 Rainfall (mm) 100 6 5 05-May-1904-Jun-19 04-Jul-1903-Aug-1902-Sep-1902-Oct-1901-Nov-1901-Dec-1931-Dec-1930-Jan-20 0 SW2 - DCPL (CSC) SW2 RC - Rail Culvert DCPL (CSC) 2019 JAN MAR SW6 - DCPL SW9 - Fisher Webster (UNT) 2018 MAY JUL SW10 - DCPL (CSC) GB1 - DCPL (MJR) SEP 2017 Highnoon - (MJR) Site 9 - Stroud Road Bridge (KR) NOV 2016 Site 11 - Schultz (MJR) Site 12 -Relton (MJR) Month Site 15 -Tereel (MJR) Site 19 - Washpool Bridge (KR) HISTORICAL AVERAGE * North Drain South Drain Duralie Surface Water Monitoring - EC (µS/cm) Duralie Surface Water Monitoring - TSS (mg/L) 6 months to January 2020 6 months to January 2020 15 4000 3000 10 2000 5 1000 0 0 19 February 2020 11 4-Jul-19 3-Aug-19 2-Sep-19 2-Oct-19 1-Nov-19 1-Dec-19 31-Dec-19 30-Jan-20 4-Jul-19 3-Aug-192-Sep-19 2-Oct-191-Nov-191-Dec-1931-Dec-19 30-Jan-20 11
3e. Rehabilitation Management Management Area Project Status • Rehabilitation Works • Rehabilitation of 20ha was commenced during H2 2019, including topsoil spreading, Rehabilitated Waste emplacements ground preparation and seeding. 20ha of native will be planted in February 2020. • Rehabilitation maintenance • Slashing and seeding of areas of poor growth completed on the rehabilitation on the Weismantel waste emplacement. • Turkey litter and kikuyu seed application scheduled for H1 2020 for the area of poor growth. Photo: Bulk shaping and topsoiling at Weismantel Photo: Bulk shaping and topsoiling at Weismantel waste emplacement and Duralie Haul Rd, taken Jan waste emplacement and Duralie Haul Rd, taken Jan 2020. 2020. 19 February 2020 12 12
3e. Rehabilitation Management Management Area Project Status • Auxiliary Dam 1 • Decommissioning and rehabilitation of AD1 is proposed to commenced in October Dam Decommissioning 2019 • Clay has been recovered and is being stockpiled for use for the clay lining in the Coal Shaft Creek Reconstruction. Photo: shaping and topsoiling partially completed at Auxiliary Dam 1, Jan 2020. 19 February 2020 13 13
3f. Biodiversity Management Management Project Status Area • Biodiversity • A revision of the Biodiversity Management Plan has been prepared following the first 5 years of BMP Management Plan implementation. A summary of the biodiversity offset works completed and the changes to the revision BMP is included in the Annual Biodiversity Report. • Revegetation works • 15,000 tubestock are scheduled to be planted in April 2020. Biodiversity Offset Photos: Tubestock preparation for H1 2020 19 February 2020 14 14
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