HVO 2009 Annual Environmental Management Report - Final
HVO 2009 Annual Environmental Management Report - Final
HVO 2009 Annual Environmental Management Report - Final
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Coal & Allied – Hunter Valley Operations<br />
20,000<br />
West Pit Groundwater EC Trends<br />
15,000<br />
Electrical Conductivity (uS/cm)<br />
10,000<br />
5,000<br />
0<br />
Jan 09<br />
Feb 09<br />
Mar 09<br />
Apr 09<br />
May 09<br />
Jun 09<br />
Jul 09<br />
Date<br />
Aug 09<br />
Sep 09<br />
Oct 09<br />
Nov 09<br />
Dec 09<br />
NPZ1 NPZ2 NPZ3 NPZ4 NPZ5<br />
Figure 67: West Pit Groundwater EC Trends<br />
Groundwater Monitoring SWL Results for West Pit Piezometers<br />
The SWL on for sites to the east of the advancing highwall generally showed a decline consistent with the<br />
progression of mining, except for NPZ2 and NPZ5 which appear to have either increased slightly or remained<br />
stable.<br />
0<br />
West Pit Groundwater SWL Trends<br />
10<br />
Standing Water Level (m)<br />
20<br />
30<br />
40<br />
50<br />
Jan 09<br />
Feb 09<br />
Mar 09<br />
Apr 09<br />
May 09<br />
Jun 09<br />
Jul 09<br />
Date<br />
Aug 09<br />
Sep 09<br />
Oct 09<br />
Nov 09<br />
Dec 09<br />
NPZ1 NPZ2 NPZ3 NPZ4 NPZ5<br />
Figure 68: West Pit Groundwater SWL Trends<br />
AEMR <strong>2009</strong> 116
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