A-OK for AQCS Anglesea’s Air Quality Control System commissioning gets underway alcoa anglesea 2009 environment report september ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2009 air Air Monitoring Stack Monitors Average Maximum Opacity g/m3 10-minute average 0.047 0.315 Stack SO2 kg/min 1-hour average Licence limit 100kg/min 64.46 80.08 SO2 1 hour ppb Average Maximum Community Centre 3 178 Primary School 3 171 Mt Ingoldsby 1 117 Scout Camp 5 108 Camp Wilkin 1 105 Camp Road 4 124 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 29 30 31 Community Centre 0 96 178 1 1 0 0 0 0 0 139104 1 0 0 29 1 0 1 0 1 0 0 2 0 0 0 0 3 2 0 Primary School 0 Mt Ingoldsby 2 117 36 1 0 0 1 0 0 0 86 123 0 0 0 88 6 0 66 1 21 5 0 51 171 0 0 0 103 99 0 1 1 1 1 0 0 2 1 0 1 6 2 2 1 8 - 3 4 0 Scout Camp 71 3 104 32 104 1 0 0 0 0 108 81 - - 0 10 2 0 64 77 0 66 39 100 5 94 0 0 33 1 126 Camp Wilkin 1 105 25 1 2 1 1 0 0 37 3 1 1 49 0 1 2 0 1 1 Camp Road 4 3 50 11117 2 4 0 0 0 70 83 85 0 EPA Air Quality Objective 200 Alcoa Local Standard 170 38 7 7 2 1 0 21 27 3 0 1 5 1 2 0 0 2 65 15 1 0 106 22 77 29 0 37 0 0 1 84 1 2 0 0 0 106124 15 ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2009 water Water Storage Barwon Water storage levels for the Geelong system at 35% capacity. Stage 4 restrictions apply with a Daylight Savings exemption to permit limited residential garden watering. Water Discharge ML September Total Ashponds (SP1) 150 1152 Mine (SP4) 0 0 Water Monitoring SP1 SP4 SP3 21/09/2009 Ashpond Mine Final EPA limit Lab Result EPA limit Lab Result EPA limit Lab Result pH 4-10 7.9 3-9 no 5-9 7.6 Susp. Solids 100 <4 100 discharge 30 <4 Colour 50 4 50 at 50 5 Aluminium 10 0.37 10 time 5.5 0.26 Iron 10 0.45 20 of 4.0 0.013 Zinc 0.4 0.045 2.0 sampling 0.30 0.024 WATER WATER USAGE PER MONTH (ML) Date JAN FEB MAR APR MAY JUNE JULY AUG Town Water 2.5 1.0 1.5 1.5 2.9 1.6 0.6 1.1 1.4 14.1 Bore Water 288 270 281 237 76 233 231 232 224 2072 Mine Water 46 53 54 65 27 66 79 59 75 524 SEPT OCT NOV DEC TOTAL ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2009 AQCS commissioning gets underway The long awaited commissioning process for the Air Quality Control System (AQCS) for sulphur dioxide emissions management commenced in late September. The AQCS comprises of a predictive and reactive system, which can be considered more sophisticated than the current load reduction protocol, which is purely a reactive tool. In order to minimise the risk of any Ground Level Exceedences (GLCs) occurring during the commissioning phase, we have developed a five stage implementation process. This cautious commissioning process has been employed to ensure compliance with the Ambient Air Quality Objective of 200 parts per billion averaged over a clock hour. “Tollgate” evaluations will be conducted by the SO2 Lead Team to judge the success of the current stage and to determine whether or not to initiate the next stage. We are currently at the second of the five stages of implementation, with the predictive output of the tool is used, in addition to the new reactive alarms on low risk days. Instead the traditional Load Reduction Protocol is followed. In order to ensure any issues can be dealt with immediately, the AQCS commissioning will occur only on day shift until stage 5 commences. Night shift will continue to use the Load Reduction Protocol as per usual. The five stages are as follows: 1/ use of predictive output and no reactive alarms followed - use of the traditional load reduction protocol 2/ use of predictive output and following reactive alarms on low risk days 3/ use of predictive output and following reactive alarms on medium risk days 4/ use of predictive output and following reactive alarms on high risk days 5/ sole operation using AQCS We will keep everyone updated on the progress of commissioning over the next few weeks. PLANT OF THE ANGLESEA HEATH ANGAHOOK CALADENIA (Caladenia maritima) Caladenia....from the Greek, calos, beautiful, and adenos, a gland, which refers to the many calli on the labellum of the species in this genus maritima... refers to the fact that the locality where the orchid is found overlooks the sea, and is derived from the Latin, maritimus, for the sea. The common name indicates the orchid grows within the Angahook area of the Great Otway National Park. Size: stem to 25 cm high Form: erect herb Habitat: coastal woodland endemic to Anglesea, the species was first recorded in 1998 Foliage: single hairy leaf grows to 10-15cm high Flowers: hairy flower stem bears a single flower large white flowers of this species are very striking, especially in an extensive CALADENIA MARITIMA ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2009 LAND RAINFALL (mm) Month JAN FEB MAR APR MAY JUNE JULY AUG 2009 Rainfall 5.0 5.8 33.4 63.8 47.2 43.8 1968-2008 Average 43.9 42.5 40.4 51.6 60.2 59.5 62.6 79.2 SEPT OCT NOV DEC TOTAL 91.6 61.0 430.8 65.2 67.0 492.8 WATER TOWN WATER USE (ML) FEB MAR APR MAY JUN JUL AUG SEP Process 23.9 15.5 1 1 . 9 2.5 0.8 1.2 1.3 2.3 1.5 0.5 0.7 1.1 Amenity 11.6 1.5 2.2 0.2 0.3 0.2 0.6 0.1 0.1 0.4 0.3 2000 2008 2009 JAN 0.0 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 1.31 1.24 1.19 1.21 1.21 1.20 1.21 1.20 1.18 1.20 1.23 ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2009 environmental improvement Environmental Management Targets September 2009 Total Forecast 2009 Target Reportable Environmental Incidents 0 1 1 0 Env Near Miss vs Env Incident Run Rate (ratio) 1.5 2.1 2.1 2.5 Monthly EHS ASAT Audit Completion (%) 100 93 93 90 Air Emission Targets September 2009 Total Forecast 2009 Target Ambient SO2 (no. readings > 200ppb) 0 2 2 0 Stack SO2 (no. hrs > 100kg/min) 0 0 0 0 SO2 Load Reductions (lost MWh) 5953 30055 40073 N/A GHG Efficiency (t CO2 e/MWh) 1.22 1.23 1.23 1.20 Opacity (10 min av > 0.25g/m normal operation) 0 0 0 0 Water Targets September 2009 Total Forecast 2009 Target Town Water (ML) 1.4 14.2 18.9 14.2 Bore Water (ML) 224 2072 2763 4000 Waste Targets September 2009 Total Forecast 2009 Target Waste to Landfill (t) 4.34 11.64 15.5 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 Hi Steph, I understand you are the sponsor for the Air Quality Control System (AQCS) for sulphur dioxide management. Where did the AQCS come from? We engaged a consulting firm, Environ, to develop and commission this tool for us. They completed the same project at Kalgoorlie Gold Mine in WA. The mine historically has had issues with sulphur dioxide exceedences, and have implemented this tool with much success. What are you aiming to achieve by using the AQCS? The AQCS is the next level of sophistication on our Load Reduction Protocol. It has new predictive capabilities and a different set of reactive trigger points. The tool is very visual and binary in its instructions to the operators, and we hope that with continuous improvement it will be less stressful for our operators during periods of high sulphur dioxide concentrations. The AQCS should help us to meet our target of zero environmental non-compliances. Thanks Steph, we look forward to hearing great results! ...STEPHANIE PEARCE