A water target achieved Alcoa Anglesea maintains the focus on town water use anglesea environment report DECEMBER 2006 Inside the ‘Best Practice’ Environment Report: Air Emissions Water Monitoring 2006 town water target achieved Animals of the Anglesea Heath: Gang-gang Cockatoo Updates on Rainfall, Town Water Use and Greenhouse Gas Emissions Environmental improvement - progress towards 2006 targets Plus we talk to an employee about their contribution to improving the environment ANGLESEA ENVIRONMENT REPORT DECEMBER 2006 air Air Monitoring Stack Monitors Average Maximum Opacity g/m3 10-minute average 0.067 0.324 Stack SO2 kg/min 1-hour average Licence limit 111.34kg/min 60.18 77.42 Ambient Monitors SO2 1 hour ppb Average Maximum Community Centre 2 18 Primary School 2 198 Mt Ingoldsby <1 8 Scout Camp 4 93 Camp Wilkin 2 7 Camp Road 2 89 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 2 2 3 3 18 2 3 2 3 3 2 2 4 3 2 2 4 3 - - 3 3 3 4 3 3 3 3 2 2 Primary School 2 1 0 0 131 1 1 1 3 2 2 0 6 1 0 0 1 2 - - 3 198 0 0 0 0 0 0 0 1 1 Mt Ingoldsby 4 2 3 8 2 3 - - - - - - - - - - - - - - 4 6 0 0 0 0 0 0 0 1 1 Scout Camp 9 2 3 2 21 9 4 3 8 8 10 4 9 93 4 4 4 5 4 5 9 7 - - - - 12 10 10 11 10 Camp Wilkin 2 1 1 1 2 2 2 2 3 3 2 2 7 2 2 2 3 3 2 2 4 5 2 2 2 2 2 1 2 3 2 Camp Road 0 0 1 1 - 0 3 2 4 3 2 2 5 2 2 2 3 3 2 2 3 89 3 - - - - - - - - EPA Intervention Level 210 Alcoa Local Standard 170 6 ANGLESEA ENVIRONMENT REPORT DECEMBER 2006 water Water Storage Barwon Water storage levels for the Geelong system at 22.2% capacity. Stage 4 restrictions now apply. Water Discharge ML December Total Ashponds (SP1) 146 1690 Mine (SP4) 0 0.8 Water Monitoring SP1 SP4 SP3 12/12/2006 Ashpond Mine Final EPA limit Lab Result EPA limit Lab Result EPA limit Lab Result pH 4-10 8.9 3-9 - 5-9 7.3 Susp. Solids 100 <2 100 - 30 <2 Colour 50 4 50 - 50 4 Aluminium 10 < 0.1 10 - 5.5 < 0.1 Iron 10 < 0.2 0 - 4.0 < 0.2 Zinc 0.4 < 0.1 2.0 - 0.3 < 0.1 WATER WATER USAGE PER MONTH (ML) Date JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC TOTAL Town Water 1.0 1.0 1.0 1.5 1.6 0.8 1.0 1.1 0.9 1.6 1.8 1.6 14.9 Bore Water 279 243 285 237 210 218 238 240 236 262 252 264 2964 Mine Water 81 82 81 92 106 88 93 101 104 51 56 80 1015 300.0 3000 250.0 2500 200.0 2000 150.0 1500 100.0 1000 50.0 0.0 500 0 ANGLESEA ENVIRONMENT REPORT DECEMBER 2006 water target achieved In a year of extreme drought conditions where low water storages and water restrictions have been in the spotlight, Alcoa Anglesea has strived for and achieved the ambitious goal of a further reduction in town water use. Just 14.9 ML of water was used in 2006 meaning Alcoa Anglesea has now reduced its town water use by more than 60% from 2000, two years ahead of the corporate 2008 target. Congratulations to all the employees of Alcoa Anglesea who have been vigilant in minimising the use of town water. The water saving is particularly critical, given the current drought leading to Stage 4 water restrictions being enforced by Barwon Water. Alcoa Anglesea has quickly adapted to the changing water restrictions, including the decommissioning of the carwash facility. The acceptance of the need to save water by all employees is to be highly commended. The driving force behind water saving at Alcoa began in 2004 when Alcoa and Barwon Water signed an agreement to produce water management plans with the intent of reducing water use. The agreement was launched by the Hon John Thwaites, Minister for Water. Alcoa (Pt Henry & Anglesea) has spent over $1 million dollars on water conservation initiatives since forming the partnership. The first step in the agreement was for Alcoa to undergo a series of water audits. Key findings from the audits were implemented, in particular the installation of water saving devices on all showers, basins and taps utilising town water. This project had a financial payback of 15 months, as well as significantly saving water. Other projects were also identified by the site Water Team and carried out by maintenance teams. This included such projects as the conversion of toilets to GS water, trigger nozzles fitted on hoses, and prominent water saving signage. Alcoa Anglesea’s goal in 2007 is to maintain its water saving efforts with a target to further reduce water use by 10% by 2010 resulting in a 70% reduction since 2000. PLANTS OF THE ANGLESEA HEATH GANG-GANG COCKATOO (Callocephalon fimbriatum) Size: Weight: Description: 34cm 257g small stocky cockatoo with a wispy crest, adult male has a distinctive scarlet red head + crest with the rest of the body slate-grey, adult female has a dark grey head + crest with the feathers on the breast and abdomen edged in pink and yellow Distribution endemic to south-eastern Australia Habitat: in summer the Gang-gang is found in tall mountain forests and woodlands with dense shrubby understorey, in winter they will move into drier, open forest and woodlands Food: mainly feed on seeds of native and introduced trees and shrubs with a preference for eucalypts and wattles Did you know? Gang-gang Cockatoos almost always use their left foot to hold food when eating GANG-GANG COCKATOO ANGLESEA ENVIRONMENT REPORT DECEMBER 2006 LAND RAINFALL (mm) Month JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC TOTAL 2006 Rainfall 46.2 19.6 7.3 37.1 129.4 17.0 40.8 26.0 32.8 15.8 15.4 29.0 417.4 1968-2005 Average 44.6 43.9 42.5 53.5 59.3 60.8 61.1 67.0 69.3 73.6 54.1 44.2 673.8 130 7 0 0 .0 0 120 6 0 0 .0 0 110 100 5 0 0 .0 0 90 80 4 0 0 .0 0 70 60 3 0 0 .0 0 50 40 2 0 0 .0 0 30 20 1 0 0 .0 0 10 0 0.00 WATER TOWN WATER USE (ML) 2000 2001 2002 2003 2004 2005 2006 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Process 23.9 14.6 13.1 16.7 15.0 13.5 1 1 . 0 0.7 0.7 0.8 1.1 0.9 0.6 0.6 0.7 0.6 1.3 1.5 1.5 Amenity 11.6 6.6 3 . 8 0.3 0.3 0.2 0.4 0.7 0.2 0.4 0.4 0.3 0.3 0.3 0.1 2 .0 6.6 5.0 4.0 2.6 4 0 .0 1 .8 3 5 .0 1 .6 3 0 .0 1 .4 2 5 .0 1 .2 1 .0 2 0 .0 0 .8 1 5 .0 0 .6 1 0 .0 0 .4 5 .0 0 .2 0 .0 0 .0 2000 2001 2002 2003 2004 2005 2006 JA N FE B M A R A P R M A Y JUN JU L A UG S E P O C T NO V D E C AIR GREENHOUSE GAS (GHG) TOTAL (Mt) & GHG EMISSION EFFICENCY (t/MWh) 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 1.42 1.62 1.56 1.45 1.34 1.25 1.20 1.38 1.42 1.53 1.23 1.27 1.50 1.45 1.47 1.31 1 . 4 9 GHG Mt GHG t/MWh 1.34 1.35 1.33 1.32 1.31 1.33 1.38 1.34 1.30 1.30 1.24 1.19 1.21 1.21 1.20 1.21 1 . 2 1 2 1600000 1 .8 1400000 1 .6 1 .4 1 .2 1200000 1000000 1 800000 0 .8 600000 0 .6 400000 0 .4 200000 0 .2 0 0 ANGLESEA ENVIRONMENT REPORT DECEMBER 2006 environmental improvement Environmental Management Targets December 2006 Total Forecast 2006 Target Reportable Environmental Incidents 0 0 - 0 Monthly EHS ASAT Audit Completion (%) 100 94 - 90 Air Emission Targets December 2006 Total Forecast 2006 Target Ambient SO2 ( no. readings > 210ppb) 0 4 - 0 Stack SO2 (no. hrs > 100kg/min) 0 0 - 0 SO2 Load Reductions 2 111 - N/A 1.21 1.21 - 1.20 Opacity (10 min av > 0.25g/m normal operation) 0 0 - 0 Water Targets December 2006 Total Forecast 2006 Target Town Water (ML) 1.6 14.9 - 17.2 Bore Water (ML) 264 2964 - 2440 Waste Targets December 2006 Total Forecast 2006 Target Waste to Landfill (t) 0.0 9.1 - 10.0 Solid Prescribed Waste to Landfill (t) 0.0 0.0 - 0.0 GHG Efficiency (t CO2 e/MWh) 3 Mine Rehabilitation Targets 2006 Total 2006 Target 2006 Area Cleared (ha) 3.3 3.3 2006 Area Rehabilitated (ha) 7.5 > 3.3 2005 Mine Rehabilitation Species Richness (%) N/A 100 OUR ENVIRONMENT AND OUR EMPLOYEES.. It’ s been 2 years since Anglesea embarked on a It’s concerted effort to reduce its town water use. What sort of things does the maintenance department do to ensure no water is wasted? A more concerted response to repairs on the water systems. shorter showers,”soap up” first then turn the taps on to wash hands and face and trigger nozzles on all town water hoses. Have these lear ning’ s being implemented at home? ning’s Yes I have installed the same restrictors on both our showers. I have been on the websites that were suggested for info on water conservation in the last issue of “Enviro News” and from the research and talking to our resident plumber Bindy I have diverted about 80% of grey water to our gardens at little cost and alteration. We had a tank installed about 10 years ago and only used the water for drinking but now we use this to “hand water” the plants and garden beds as before it was done by the hose or the auto watering system. As a regular provider of feed back on the Environment Report, what issues interest you most? Long term..What does the future hold for the next generation? Short term..How we can keep running this station with minimum impact to the environment and the people?... so I have a job. ...PAUL MANNIX