UHMD 2017 Water Usage Results

UHMD 2017 Water Usage Results
 
The Upper Hunter Mining Dialogue assessed water use by the mining industry in the Upper Hunter in 2017. Using a common accounting framework, mining companies have reported their water inflows and outflows from operations. This has helped them to manage their water use and embark on water saving and reuse opportunities.
 
Please find the following for two types of infographic:

2017 Simple Water Usage Infographic

2017 Detailed Water Use Infographic

2017 Key points:
  • 2017 was a drier than average year. That year 204 billion litres entered the river system in the Upper Hunter.
  • 42% of that water stayed in the river.
  • The amount of water extracted and used by farmers, residents and businesses was 55%.
  • Mining used less than 3% of the water in the system.
  • Almost 6 times as much water evaporated from the Hunter River System storage dams as was extracted from the Hunter River System by mining companies.
  • Only 12% of mine water came from rivers and alluvial aquifers.
  • 38% of mine water was sourced from onsite rainfall and runoff.
  • 41% of water was sourced from deep aquifers that are of limited use to other water users due to their high salinity.
  • The mining industry reused 55% of its water onsite.
  • Only 0.45% of mine water was discharged into the Hunter River.
  • The rainfall in Scone during 2017 was 360mm, which is well below the long-term average of 637mm. The dry
    conditions meant that companies did not have opportunties to discharge excess water into the Hunter River System, and were in fact keenly conserving their stored water.