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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

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SLIDE 1

Duralie Coal CCC Meeting

Presentation – Company Report & Overview of Activities

Duralie Coal CCC Meeting

Presentation – Company Report & Overview of Activities

February 2020 February 2020

Alarna Bristow Environment & Community Superintendent Alarna Bristow Environment & Community Superintendent

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SLIDE 2

19 February 2020

2

Table of Contents

2

1.

Agenda Item 7a - Progress at the Mine

2.

Agenda Item 7b - Environmental Reporting

3.

Agenda Item 7c - Environmental Management Plans & Monitoring

4.

Agenda Item 7d - Community Complaints

5.

Agenda Item 7e - Community Programs

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SLIDE 3

19 February 2020

3

  • 1. Progress at the Mine

Mining 2nd 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

1st 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.

3

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SLIDE 4

19 February 2020

4

4

  • 2. Environmental Reporting & Regulators

Management Area Project Status Reporting

  • Duralie Coal Mine Annual Review

2019/20

  • The Duralie Coal Mine 2019/20 Annual Review is due August 2020. The Annual Review

will be made available to the CCC and on the Duralie Coal website. Regulator

  • Mining Operations Plan &

Rehabilitation Management Plan

  • DPI&E Inspection
  • Environmental Management

Plans

  • Submitted for approval to the DPI&E in December 2019
  • Inspection of site scheduled for Wednesday the 29th of January 2020
  • No changes
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SLIDE 5

19 February 2020

5

  • 3. Environmental Management Plans & Monitoring

5

a) Air Quality Management b) Blast Management c) Noise Management d) Water Management e) Rehabilitation Management f) Biodiversity Management g) Mine Closure Planning

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SLIDE 6

19 February 2020

6

  • 3a. Air Quality Management

6 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.

0.0 2.0 4.0 6.0 8.0 Jan-19 Feb-19 Mar-19 Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19

Dust (g/m2/month)

Duralie Dust Deposition - Annual Rolling Average 12 Months to January 2020

D3 D4 D5 D5A D7 D8 D9 D10 D12 D13 DP&E limit

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SLIDE 7

19 February 2020

7

  • 3a. Air Quality Management

7

  • All sites below DP&E limit. Typically low results

during winter and higher during spring/ summer.

  • Minor increasing trend over previous 12 months.
  • HVAS results provide more reliable data

compared to dust deposition results and should be referred to when interpreting dust emissions.

10 20 30 40

2-Jan- 19 2-Feb- 19 2-Mar- 19 2-Apr- 19 2-May- 19 2-Jun- 19 2-Jul- 19 2-Aug- 19 2-Sep- 19 2-Oct- 19 2-Nov- 19 2-Dec- 19

PM10 (µg/m3)

Duralie HVAS Monitoring (PM10) Annual Rolling Average - 12 Months to January 2020 High Noon Twin Houses Hattam Edwards DP&E Limit

  • 50

50 100 150 200 6-Dec-18 4-Feb-19 5-Apr-19 4-Jun-19 3-Aug-19 2-Oct-19 1-Dec-19 30-Jan-20

PM10 (µg/m3)

Duralie HVAS Monitoring (PM10) 12 Months to January 2020

High Noon Twin Houses Hattam Edwards DP&E Limit

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SLIDE 8

19 February 2020

8

  • 3b. Blast Management

8

Management Area Project Status Blasting

  • Blast monitoring
  • 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.
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SLIDE 9

19 February 2020

9

  • 3c. Noise Management

9

Management Area Project Status Noise Monitoring

  • Routine Monitoring
  • Routine quarterly monitoring of operations recommenced in Q4.
  • Noise reports are made available on the Duralie Coal website.

Noise Management Plan

  • Real-Time Noise Management
  • During Q4 2018 operations at the Duralie Mine ceased.
  • In accordance with the revised NMP real-time noise monitoring has now ceased whilst

no evening or night-time operations are undertaken.

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SLIDE 10

19 February 2020

10

  • 3d. Water Management

10

Management Area Project Status Site Water Management

  • Annual water balance review.
  • The 2019 annual site water balance review is currently being prepared. A summary will

be included in the Annual Review. Surface Water

  • Routine monitoring
  • Sporadic and low rainfall conditions persisted through spring/summer 2019/20.
  • 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. Groundwater

  • Routine monitoring
  • Routine monitoring has been completed and the results continue to indicate

consistency with the model trends in the Environmental Assessment.

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SLIDE 11

19 February 2020

11

  • 3d. Water Management

11

100 200 300

JAN MAR MAY JUL SEP NOV

Rainfall (mm)

Month

Duralie Mine Site - Monthly Rainfall

2019 2018 2017 2016 HISTORICAL AVERAGE *

5 6 7 8 9 10

05-May-1904-Jun-19 04-Jul-1903-Aug-1902-Sep-1902-Oct-1901-Nov-1901-Dec-1931-Dec-1930-Jan-20

Duralie Surface Water Monitoring - pH 6 months to January 2020

SW2 - DCPL (CSC) SW2 RC - Rail Culvert DCPL (CSC) SW6 - DCPL SW9 - Fisher Webster (UNT) SW10 - DCPL (CSC) GB1 - DCPL (MJR) Highnoon - (MJR) Site 9 - Stroud Road Bridge (KR) Site 11 - Schultz (MJR) Site 12 -Relton (MJR) Site 15 -Tereel (MJR) Site 19 - Washpool Bridge (KR) North Drain South Drain

1000 2000 3000 4000

4-Jul-19 3-Aug-192-Sep-19 2-Oct-191-Nov-191-Dec-1931-Dec-19 30-Jan-20

Duralie Surface Water Monitoring - EC (µS/cm) 6 months to January 2020 5 10 15

4-Jul-19 3-Aug-19 2-Sep-19 2-Oct-19 1-Nov-19 1-Dec-19 31-Dec-19 30-Jan-20

Duralie Surface Water Monitoring - TSS (mg/L) 6 months to January 2020

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SLIDE 12

19 February 2020

12

  • 3e. Rehabilitation Management

12

Management Area Project Status Rehabilitated Waste emplacements

  • Rehabilitation Works
  • Rehabilitation maintenance
  • Rehabilitation of 20ha was commenced during H2 2019, including topsoil spreading,

ground preparation and seeding. 20ha of native will be planted in February 2020.

  • 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 waste emplacement and Duralie Haul Rd, taken Jan 2020. Photo: Bulk shaping and topsoiling at Weismantel waste emplacement and Duralie Haul Rd, taken Jan 2020.

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SLIDE 13

19 February 2020

13

  • 3e. Rehabilitation Management

13

Management Area Project Status Dam Decommissioning

  • Auxiliary Dam 1
  • Decommissioning and rehabilitation of AD1 is proposed to commenced in October

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.

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SLIDE 14

19 February 2020

14

  • 3f. Biodiversity Management

14

Management Area Project Status BMP

  • Biodiversity

Management Plan revision

  • A revision of the Biodiversity Management Plan has been prepared following the first 5 years of
  • implementation. A summary of the biodiversity offset works completed and the changes to the

BMP is included in the Annual Biodiversity Report. Biodiversity Offset

  • Revegetation works
  • 15,000 tubestock are scheduled to be planted in April 2020.

Photos: Tubestock preparation for H1 2020

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SLIDE 15

19 February 2020

15

  • 3f. Biodiversity Management

15

Management Area Project Status Flora/Fauna

  • Nest Box Program
  • Annual monitoring of nest boxes is scheduled to be undertaken in February 2020. A summary of

the nest box progress will be included in the next Annual Review. Pest Control

  • Wild Dog control

program

  • Wild dog and fox trapping concluded in November 2019, covering all Stratford Coal owned

properties including biodiversity offsets and Mining Leases.

  • Further trapping of Wild Dogs and Wild Cat is scheduled for Q1 2020

Access & Livestock

  • Fencing
  • Work has continued to replace and install boundary fencing for the biodiversity offset areas to

exclude livestock in locations where fencing is in disrepair.

  • Fences lost as a result of 2019 bushfires are scheduled for repair Q1 2020

Bushfire Management

  • Bushfire Management
  • Slashing of all access tracks and fire breaks was completed in September 2019.
  • Fire within the Biodiversity Offset November 2019
  • Yancoal worked to provide access for RFS to establish emergency containment line and provided

access to water (AD2) for water bombing.

  • Provided emergency notification to tenants along Johnson Creek Road

Photos: Bushfire in Duralie Biodiversity Offset, Nov 2019.

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SLIDE 16

19 February 2020

16

  • 3g. Mine Closure Planning

16

Management Area Project Status

Mine Closure Planning General

  • Stakeholder

engagement

  • Communications with the community consultative committee (CCC) have been established regarding mine closure
  • planning. This presentation will continue to be updated to provide relevant information through the CCC forum.

Rehabilitated Landforms

  • Landform design

and stability

  • DCPL have continued to prepare the detailed final landform designs for the waste emplacement areas.
  • Preparation of a geotechnical assessment and specifications for the final void design have continued to ensure the

long-term void is safe and stable. Final Voids

  • Water

management and final void water balance

  • Review of the final void site water balance has commenced to ensure the balance incorporates the final landform

design, surface water inflows and outflows to/from final void.

  • Groundwater

Model

  • Post-mining groundwater model verification has commenced to incorporate final void design. This work is

undertaken in conjunction with the final void water balance. Rehabilitation Resources

  • Topsoil Resources
  • A topsoil stockpile update was undertaken in July 2019 to ensure adequate topsoil is available for rehabilitation.

The use of topsoil continues to be tracked. Water Management

  • Mine Water Dams
  • Preparation of a strategy for decommissioning of the mine water dams has commenced. DCPL has engaged an

independent dams engineer to assist with preparing plans for the decommissioning the of the prescribed dams

  • Auxiliary Dam 1 has been dewatered and decommissioning and rehabilitation will be completed in the Q1 2020.
  • Preparations have commenced for pumping mine water to the Clareval void.

Coal Shaft Creek

  • CSC

reconstruction

  • Re-construction of the lower reaches of Coal Shaft Creek is required following the completion of mining activities.

A conceptual Coal Shaft Creek Reconstruction Plan was prepared in 2012.

  • A consultant has been engaged to prepared the detailed design for the reconstruction of Coal Shaft Creek.
  • Removal of the ROM coal stockpile in the CSC corridor has been completed. Bulk shaping of the final creek

landform has commenced. Final land use

  • Potential final

land-use planning

  • Draft plan prepared in 2017.

Note: *Refer to Duralie Mining Operations Plan & Rehabilitation Management Plan Table 14 Mine Closure Planning Schedule. *Further detail on mine closure planning progress is included in the Annual Review 2018.

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SLIDE 17

19 February 2020

17

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  • 4. Community Complaints

Duralie Complaint Summary Period: 31/06/2019 - 31/01/2020 Period: 6 Months Total No. of Complaints: 0 (0 noise, 0 blast, 0 air quality, 0 other) Total No. of Complainants: 0

Date/Time of Complaint Complainant Location Method of Complaint Nature of Complaint Investigation/Outcome

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SLIDE 18

19 February 2020

18

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  • 5. Community Programs

Management Area Project Status Support Programs Stratford Coal Community Support Program

  • The application period for the 2020 Stratford Coal Community Support Program is closed.
  • Applications have been reviewed with the outcomes announced in February 2020.

Stratford Coal Education Support Fund

  • The Stratford Coal Education Support Fund will be running again during 2020 and

applications are available from Gloucester High School or the MidCoast Council Gloucester

  • ffice.
  • The Education Support Fund Committee have revised and formalised a written guideline for

the program to ensure ongoing transparency and consistency in the implementation of the program.