rehab reno 1970’s rehab brought into the 21st century alcoa anglesea 2009 environment report february ANGLESEA ENVIRONMENT REPORT FEBRUARY 2009 air Air Monitoring Stack Monitors Average Maximum Opacity g/m3 10-minute average 0.083 0.204 Stack SO2 kg/min 1-hour average Licence limit 100kg/min 73.75 84.81 SO2 1 hour ppb Average Maximum Community Centre 0 50 Primary School 2 148 Mt Ingoldsby 1 39 Scout Camp 1 40 Camp Wilkin 0 90 Camp Road 1 133 Ambient Monitors Ambient Monitors SO2 Maximum 1 hour averages (ppb) Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Community Centre 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 50 0 Primary School 0 1 0 0 0 0 148 3 0 0 0 0 3 2 0 3 2 5 3 0 0 0 1 0 0 0 83 0 Mt Ingoldsby 0 0 0 1 0 1 22 2 0 1 1 0 2 1 1 2 1 4 2 39 0 1 1 0 0 0 22 0 Scout Camp 1 1 1 1 1 2 5 3 1 1 0 1 4 3 1 3 2 6 4 22 1 1 40 1 1 2 9 Camp Wilkin 0 2 0 0 0 0 6 0 0 0 0 0 3 1 0 3 1 6 2 3 0 0 0 0 0 1 90 0 Camp Road 0 3 0 0 0 0 133 1 0 0 0 0 4 3 0 3 1 4 1 0 0 0 51 0 0 2 121 0 EPA Air Quality Objective 200 Alcoa Local Standard 170 0 ANGLESEA ENVIRONMENT REPORT FEBRUARY 2009 water Water Storage Barwon Water storage levels for the Geelong system at 22.1% capacity. Stage 4 restrictions apply with a Daylight Savings exemption to permit limited residential garden watering. Water Discharge ML February Total Ashponds (SP1) 123 262 Mine (SP4) 0 0 Water Monitoring SP1 SP4 SP3 24/02/2009 Ashpond Mine Final EPA limit Lab Result EPA limit Lab Result EPA limit Lab Result pH 4-10 8.2 3-9 no 5-9 7.4 Susp. Solids 100 <4 100 discharge 30 <4 Colour 50 4 50 at 50 5 Aluminium 10 0.11 10 time 5.5 0.031 Iron 10 0.15 20 of 4.0 0.14 Zinc 0.4 0.009 2.0 sampling 0.30 0.008 WATER WATER USAGE PER MONTH (ML) Date JAN FEB MAR APR Town Water 2.5 1.0 3.5 Bore Water 288 270 558 Mine Water 46 53 99 MAY JUNE JULY AUG SEPT OCT NOV DEC TOTAL ANGLESEA ENVIRONMENT REPORT FEBRUARY 2009 mine rehabilitation Whilst mine rehabilitation wasn’t on the cards for 2009, a small peninsula of soil remained in the overburden cut from 2007 that impeded the revised mine plan for this year. With 0.245 hectares of topsoil, we were able to rehabilitate 0.658 hectares of area, neatly bounded by the drain from the mine wetland dam and the coal haul road, that fits into this long term plan. Small peninsula is no understatement. The area was only 0.245 hectares, smaller than most backyards! However, as our most precious resource for mine rehabilitation it was not going to be wasted. The formula for this year’s mine rehabilitation was a variation on the techniques we have employed in previous years. This area was cleared of it’s overstorey and the understorey mulched in 2007, leaving minimal vegetation on the site. Therefore it was simply a case of soil movement to complete this year’s rehab. The absence of mulch should not signifcantly impact upon our rehabilitation results as previous research has shown that mulch does not contribute additional species to our rehabilitation above those that regenerate from the topsoil. In the space of two weeks, 200mmm of subsoil was laid down over the existing soil profile topped with 50mm of topsoil. A few quick laps on the dozer ripped up the ground nicely for some broadcast seeding and it was all done. Fortunately, a large area of old rehabilitation was cleared in 2008 in early preparation for mine rehabilitation activities in 2010. This area was first rehabilitated during the years 1975 - 1985 and does not meet today’s rehabilitation standard. It will be ‘re-rehabilitated’ in the coming years as we see the coal haul road filled in and the two sides of the open cut join into a continuous valley of rehabilitated heathy woodland. PLANT OF THE ANGLESEA HEATH ROSY BAECKEA (Euryomyrtus ramosissima ssp. prostrata) Size: Habitat: Distribution: Form: 8-20cm H x 0.3-1.5m W tea tree heath Victoria, NSW, SA and Tasmania sparsely-branched spreading perennial shrub Foliage: narrow papery leaves 3-10mm long with pointed tips Flowers: single, pendant small white to pale pink tea-tree-like flowers to 5mm wide June to February Status: listed as ‘Rare in Victoria’ whilst this species is listed as rare, it is considered a characteristic species of our heathy woodland and returns in significant numbers in our mine rehabilitation Did you know? until recently, this species was identified as Baeckea ramosissima ssp. prostrata, as the common name still suggests. ROSY BAECKEA ANGLESEA ENVIRONMENT REPORT FEBRUARY 2009 LAND RAINFALL (mm) Month JAN FEB MAR APR 2009 Rainfall 5.0 5.8 10.8 1968-2008 Average 43.9 42.5 86.4 MAY JUNE JULY AUG SEPT OCT NOV DEC TOTAL WATER TOWN WATER USE (ML) 2000 2008 2009 JAN FEB Process 23.9 15.5 3.3 2.5 0.8 Amenity 11.6 1.5 0.2 0.0 0.2 MAR APR MAY JUN JUL AUG SEP OCT NOV DEC AIR GREENHOUSE GAS (GHG) TOTAL (Mt) & GHG EMISSION EFFICENCY (t/MWh) GHG Mt GHG t/MWh 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 1.23 1.27 1.50 1.45 1.47 1.31 1.49 1.40 1.42 1.43 1.24 1.19 1.21 1.21 1.20 1.21 1.20 1.18 1.20 1.22 ANGLESEA ENVIRONMENT REPORT FEBRUARY 2009 environmental improvement Environmental Management Targets February 2009 Total Forecast 2009 Target Reportable Environmental Incidents 0 0 0 0 Env Near Miss vs Env Incident Run Rate (ratio) 2 1.3 1.3 2.5 Monthly EHS ASAT Audit Completion (%) 88 83 83 90 Air Emission Targets February 2009 Total Forecast 2009 Target Ambient SO2 (no. readings > 200ppb) 0 1 1 0 Stack SO2 (no. hrs > 100kg/min) 0 0 0 0 SO2 Load Reductions (lost MWh) 435 1902 11416 N/A GHG Efficiency (t CO2 e/MWh) 1.22 1.22 1.22 1.20 Opacity (10 min av > 0.25g/m normal operation) 0 0 0 0 Water Targets Febuary 2009 Total Forecast 2009 Target Town Water (ML) 1.0 3.5 21 14.1 Bore Water (ML) 270 558 3348 4000 Waste Targets February 2009 Total Forecast 2009 Target Waste to Landfill (t) 0.0 0.0 0.0 8.0 Solid Prescribed Waste to Landfill (t) 0.0 0.0 0.0 0.0 3 Mine Rehabilitation Targets 2009 Total 2009 Target 2009 Area to Clear (ha) 0.245 0.0 2009 Area to Rehabilitate (ha) 0.658 0.0 OUR ENVIRONMENT AND OUR EMPLOYEE Elise, what’s been happening so far in 2009? I started this year knowing I had 11 weeks of work before I left on maternity leave. So it’s been like preparing for my own personal shutdown making sure projects for the next 12 months are scoped, documented, suppliers informed and all information up-to-date and accessible for someone else to run with. Had some impromptu mine rehabilitation thrown in as well. When will we see you back at Anglesea? At this stage I have planned for 12 months maternity leave which will see me back at Anglesea on March 22, 2010. It seems so far away but i’m sure the year will go quickly. Who will be looking after your role while you are on leave? My role has been split into the two areas of land management and mine rehabilitation. Lisa Mills will be taking care of everything land management related for the site whilst three mine rehabilitation projects will be tackled by our Alcoa colleagues in Western Australia. Good luck – we hope it all goes well. Thank you - so do I! ...ELISE JEFFERY