Wambo Coal AEMR 2011-2012 - Peabody Energy

232, 6% 271, 7%
Inflows (ML)
Rainfall Runoff
Tailings Water Bleed
0, 0%
175, 5%
281, 8%
154, 4%
319, 9%
2240, 61%
Groundwater Inflows (Open
Cuts)
Groundwater Inflows
(Underground)
Recovery of Water supplied to
Underground
Hunter River Extractions
Wollembi Brook Extractions
United Bores
The bulk of water inflows occurred from rainfall and runoff captured in the water
management system (61%). In comparison with EIS predictions this would correspond to
the bulk of the open cut dewatering (25.8%), the sediment control dams (11.5%) and a
proportion of the tailings water recovery (43.5%). The EIS prediction for average licenced
extraction of 2.6% compares with about 6% of inflows in 2011 – 2012. The recovery of
water from the underground (8%) was less than the EIS prediction of 13%.
The estimate water management system outflows over 2011-2012 are shown graphically on
Figure below
Outflows (ML)
360,
12%
0, 0%
621, 20%
Dust Suppression
CHPP Makeup
Underground Supply
Transfers To United
Domestic Usage
2, 0%
0, 0%
743, 24%
384,
12%
999, 32%
Evaporation
HRSTS/MERF Releases
Spill
Appendix 2C: Water Balance Summary 2011-2012