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Australia
Werris Creek Mine (Tarrawonga)

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 Location:
4 km S from Werris Creek, New South Wales, Australia

  Address:
1435 Werris Creek Road
PO Box 125
Werris Creek
New South Wales, Australia
2341
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (thermal)
  • Coal (PCI)
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2024
Gunnedah open cut mines consist of Tarrawonga mine and Werris Creek mine.


Owners

Source: p. 5
CompanyInterestOwnership
Whitehaven Coal Ltd. 100 % Indirect
Werris Creek Coal Pty Ltd. (operator) 100 % Direct
Werris Creek Coal Mine is an open cut mine owned and operated by Werris Creek Coal Pty Limited, a wholly owned subsidiary of Whitehaven Coal Limited.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The geology at WCC (Werris Creek Coal) Mine as located within the Werrie Basin is containing Permian sedimentary and volcanic rocks that unconformably overlie the Middle Cambrian to earliest Permian basement of the Tamworth Belt, Southern New England Orogen. The geology at WCC is an outlier of the Early Permian Willow Tree Formation, which is now recognised as equivalent to the Greta Coal Measures, which unconformably overlies the Werrie Basalt.

Two lithostratigraphic units occur within the equivalent Greta Coal Measures (Skeletar Formation and Rowan Formation) and one lithostratigraphic unit from the Maitland Group (Railway View Conglomerate) are recognised in the Werris Creek outlier. The equivalent Greta Coal Measures contains at least nine coal seams, with the formal names of coal members chosen to correspond with the earlier alphabetical seam identification. The coal seams range in depth from as little as 10m at subcrop to an estimated 180m in the centre of the basin. Weathering depths range from 10 – 50m. Individual seam thicknesses are up to 8m but are more commonly in the range 3 - 4m. Underlying the coal measures is the Werrie Basalt, a sequence of deeply weathered basaltic lavas, volcanoclastics and palaeosols.

The Werris Creek coal deposit is contained within a closed syncline whose longitudinal axis is oriented NNW-SSE. Dips near subcrop are up to 60o , but flatten towards the centre of the basin. The irregular upper surface of the Werrie B ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mine operations at WCC involve open cut mining with a truck and excavator/shovels fleet to produce up to 2.5 Mtpa ROM. Final landform construction and rehabilitation activities are also undertaken progressively after coal removal.

ROM coal is transported to directly to the ROM Coal Pad with coal immediately adjacent to the roof and floor of each seam stockpiled separately for use in blending to produce coal products with a higher ash specification. The ROM coal does not require washing to achieve the coal quality requirements of the product coal. The product coal is transported internally from the Coal Processing Area to a rail load-out facility via a purpose-built rail load-out road. Product coal is loaded to rail wagons via an overhead rail load-out bin and despatched along the Main Northern Railway to the Port of Newcastle.

Mining is currently approved at WCC up until 2032 and incorporates the following key activities:

-Continued development of coal mining operations in the Willow Tree Formation to facilitate a Run of Mine (ROM) coal production rate of up to 2.5 million tonnes per annum (Mtpa).
-Transport of ROM coal is transported internally from the ROM Coal Pad to a Rail Load-Out Facility and despatched along the Main Northern Railway to the Port of Newcastle. 50,000 Coal is also approved to be tonnes of coal is transported by road to domestic customers.
-Progressive backfilling of the mine void behind the advancing open cut ........


Crushing and Grinding
Source: Subscription required


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Coal (metallurgical & thermal) t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required1,982,0311,838,3751,369,269
All production numbers are expressed as ROM coal. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required14,517,443 bcm14,274,779 bcm14,254,064 bcm
Coal tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required1,499,822 t of ROM coal1,804,869 t of ROM coal1,867,752 t of ROM coal
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at August 31, 2022:

CategoryTonnage CommodityMarketable Coal
Proven 3.3 Mt Coal (metallurgical & thermal) 3.3 Mt
Measured 4.2 Mt Coal (metallurgical & thermal)
Indicated 0.2 Mt Coal (metallurgical & thermal)
Measured & Indicated 4.4 Mt Coal (metallurgical & thermal)



Heavy Mobile Equipment as of December 31, 2015:
HME TypeModelQuantity
Dozer ....................... Subscription required ....................... Subscription required
Dozer ....................... Subscription required ....................... Subscription required
Dozer ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (water) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Nov 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Mine Closure Plan 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Review 2018
Fact Sheet 2018
Annual Report 2017
Annual Review 2017
Annual Review 2016
Mine Operations Plan 2016
Annual Review 2015
Environmental Assessment 2015
Mine Operations Plan 2015
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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