HVO 2009 Annual Environmental Management Report - Final

Coal & Allied – Hunter Valley Operations
11,000
Other Tributaries EC Trends
10,000
9,000
8,000
Electrical Conductivity (uS/cm)
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
Jan 09
Feb 09
Mar 09
Apr 09
May 09
Jun 09
Jul 09
Date
Aug 09
Sep 09
Oct 09
Nov 09
Dec 09
Davis Creek Comleroi Creek Emu Creek
Parnells Creek Farrells Creek W 11 ANZECC EC upper limit
ANZECC EC lower limit
Figure 37: Other Tributaries EC Trends
60
Other Tributaries TSS Trends
50
Total Suspended Solids (mg/L)
40
30
20
10
0
Jan 09
Feb 09
Mar 09
Apr 09
May 09
Jun 09
Jul 09
Date
Aug 09
Sep 09
Oct 09
Nov 09
Dec 09
Farrell's Creek W11 Comleroi Creek Emu Creek
Parnells Creek
ANZECC TSS Upper Limit
Figure 38: Other Tributaries TSS Trends
Surface Water Monitoring for HVO Site Dams
Ten dams were monitored monthly during the reporting period. Monthly samples were collected from Dam
11N, K Dam (Lake James) and W2 Parnells Dam. Bi-monthly samples were scheduled for Emu Creek
Sediment Dam. The remaining sites were samples quarterly, including Coal Loader Dam, Dam 15N, 20N
Final Dam, Dam 3S , WOOP Dump Dam, EOC Dam and W9.
The surface water monitoring results for site dams are shown in Table 29 and Figure 39 to Figure 41. Due to
an outlier, results at Dam W9 shown in Figure 41 the scale has been reduced to promote clarity, a full scale
graph can be viewed within Appendix 8 as Figure 41A.
AEMR 2009 82