Wambo Coal AEMR 2010-2011 - Peabody Energy

Annual Environmental Management Report 2010 – 2011Wambo Coal Pty Limited2010-2011 AEMRMonthpHEC(uS/cm)P111 P114 P116Depth toWater (m) Temp (o C)pHEC(uS/cm)Depth toWater (m) Temp (o C)pHEC(uS/cm)Depth toWater (m) Temp (o C)Criteria 6.0-9.5 300-715 5.54-9.20 N/A 6.0-9.5 250-750 5.70-7.92 N/A 6.0-9.51,500-8,0005.50-9.08 N/AJul-10Aug-10 6.40 635 7.10 18.9 7.20 623 6.10 19.4 7.20 1,315 6.01 18.8Sep-10Oct-10 6.20 649 7.12 17.9 7.40 672 5.86 19.4 7.20 1,710 6.15 19.5Nov-10Dec-10 7.20 656 6.49 19.5 7.30 786 5.62 20.0 7.30 2,010 6.27 20.4Jan-11Feb-11 6.90 602 7.00 20.1 7.00 917 5.43 21.0 7.10 1,900 6.23 20.7Mar-11Apr-11 6.20 622 7.04 18.7 6.70 976 5.53 20.1 6.90 1,763 6.26 19.7May-11Jun-11 6.60 627 5.90 19.2 7.00 943 5.50 19.5 7.00 2,040 6.35 19.2Average 6.58 632 6.78 19.1 7.10 820 5.67 19.9 7.12 1,790 6.21 19.7Appendix 2D: Groundwater Monitoring Results