0 CCG Meeting Angaston 14 th January 2009

Mine Operation Update Eastern Side  Shaping complete in the warden court zone  Continuing to shape the northwest section  Re-grassing as weather permits Western Face (of eastern mound)  Continuing to crush Western MPL  MPL granted and MARP approved  Bond paid  Vine removal commenced  Topsoil removal commenced  Topsoil sampling commenced  Jaeckeli Creek management & site vegetation plan under development (SVAP) with workshop 16/1/09 Other  New weighbridge relocation well advanced  Truck wash improved  Front entrance plan submitted to Council  Additional environmental resource added to staff  Work on the an environmental matrix of actions from the MARP  Mine Planning initially to cover low grade l/s storage, Osborne stone availability, quality of west pit resource

Community Communications & Activity Program For discussion with the CCG  Newsletter  Quarterly ( ed, mailed &/or insert into local newsletters)  Community complaints number  Refer to handout  Open day  Bi-Annually  Community Survey  Annually (relevant to environmental outcomes)  Community meeting  6 monthly  Tree Planting  Invites to school groups, community groups, employees etc

Community Input Community Responses Existing Mine OperationsEastern Area CCGWestern Area Proposal MPL Management Element%% Visual Management Rehabilitation – revegetation, creek/fauna etc Community Consultation Surface run off Gully Winds410 Top Soil410 Hours of Operation Dust Management Blasting & Noise Management Water Management61612 Mound Stability12 Closure Plan513 Mine Entrance12 European Culture Heritage12 Boundary Fence12 Height of Hill12 Drag out Management1539 Traffic Management1129 Light Spillage Management821 Unauthorized mounding12 Safety

Hours of Operation Monday to Friday:  Load and Haul6am to 5.30pm  Sales Yard6am to 6pm  Aggregate Plant, Mobile Crusher6am to midnight  Drilling (for blast activity)6am to midnight  Blasting (exceptions apply)12 noon to 1pm  Train loading (exceptions apply)7am to 11am Saturday and Sunday:  Crushing and Sales6am to 4pm  Train loading (exceptions apply)7am to 11am Maintenance:  24 hours a day including emergency maintenance on Public Holidays Western MPL hours for Over Burden is 7am to 5:30pm Mon-Fri and, 9am to 1pm Sat Eastern wardens court area has its own special conditions Note: there has been no change in 15 years

Air Pollution - Site Sources Internal  Load, Haul and Unload  Sales yard and exit road  Truck loading  Primary crusher and associated conveyer handling equipment  Aggregate plant crusher and glass lime sand screening  Fine mill temporary plant  On site mobile crushing  Stock piles (finished product, overburden etc..)  Blasting  Train loading  Greenhouse gases External  Loaded trucks  Drag out

Current management of Air Pollution  Monitoring wind conditions and moving or closing operations e.g. 13/1/09  Water trucks and water cannons  Permanent stock pile sprinklers  Use of additives e.g. Polycitrus in train loading and Aggregate Plant transfer points  Enclosures over dust generating equipment  Aggregate Plant  Osborne Plant (including Tertiary and Secondary Building, and Surge Pile)  Vegetation screens e.g. West of train loader  Environmental embankments e.g. around ABC stockpile area  Grassing of topsoil mounds  Street sweeping of Penrice Rd daily  Open trucks must exit site via the truck wash

8 Air Pollution Water removed from Mine Pit Reduced water consumption in 2007 & 2008 due to inability to pump sufficient water from mine pit Data not available for water used for dust suppression prior to 2005

Water Pump System

10 Air Pollution Graphical representation of Static Dust fallout results Reduced water availabiltiy in 2007 & 2008 due to inability to pump sufficient water from mine pit and water availability Method used: Weight of dust accumulated over 6 months- calculated as mg/m2/day Baseline data is 155mg/m2/day (sample point 2km from plant S.E. of mine) Agg Plant commissioning prior to effective water spray control

11 Air Pollution Graphical representation of Static Dust fallout results Reduced water availabiltiy in 2007 & 2008 due to inability to pump sufficient water from mine pit and water availability Method used: Weight of dust accumulated over 6 months- calculated as mg/m2/day Baseline data is 155mg/m2/day (sample point 2km from plant S.E. of mine)

12 Air Pollution Additional Strategies Dust monitoring improved frequency and accuracy Dust analysis for nuisance, PM10 and silica Weather station Increase water usage subject to license conditions Investigating new dust suppressants for wider site use Increase amount of internal vegetation through Strategic Visual Amenity Plan New entrance/ improved front road layout (photo weigh bridge) More efficient truck washing (photo spray nossel) Third water truck subject to weather conditions Tarping of trucks Investigate enclosures and dust extraction options

Air Pollution (Dust) PM10 & TSP Samplers TSP: Total Suspended Particulates, high volume sampler, collects particles from 0.1 micron up to 50 micron. These particles are often referred to as ‘nuisance dust’. TSP Sampler PM10 Sampler PM10: Total Suspended Particulates, high volume sampler, collects particles from 0.1 micron up to 10 micron. These particles are health related as they are the size that can be inhaled. 6 TSP Hivol units (4 permanent, 1 background, 1 mobile) 2 PM10 (1 permanent, 1 background)

Air Pollution: Location of Static Fall out sampling Points P1 P2 P3 P6 P5 P4 Sample points 1 – 40: Three month cumulative sampling cycle + Spot Noise Measurement Round 1 commenced 24/10/08, collected 03/11/08 (450 +/- 300) Round 2 commenced 26/11/08, collected 13/01/09 (380 +/- 60) Measurement of: Background dust levels (total weight collected) Also instantaneous noise measurement at the time of sample placement and collection

Noise Pollution - Site Sources Internal  Reversing alarms from mobile equipment  Engine noise  Sales yard and exit road  Truck loading (larger rock sizes e.g. 120mm or 50mm)  Primary crusher and associated conveyer handling equipment  Aggregate plant crusher  On site mobile crushing  Load, Haul and Unload  Blasting  Rock breaking  Drilling  Train loading  Glass shed (compressors, air) External  Truck movement

Current management of Noise Pollution  Enclosure around aggregate plant crusher  Minimum 4db reduction  EPA/ wardens court approved reversing alarms on Penrice equipment  Traffic management and educational program see sample  Consultant assessment of offsite noise levels at various points (monitoring plan)  Train loading after 7am and truck exit after 6am (ABC trucks curfew 6am-9:30pm)  Partial enclosure around train loader  Immediate repair of any noisy equipment (i.e. taken out of service)  Restricted area of operation for the Rock Breaker  Environmental embankments e.g. around ABC stockpile area  Hours of operation  Maintenance of fleet vehicles  Location of driller outside daylight hours  Best practice for blasting techniques

PQM – Community Consultation Meeting Relevant Australia Standard: AS Max limit prior to 2006 (120 dB max), current performance 0 % exceed 100 % compliance (over past 90 days data) 10 blast events moving average

Sample locations & Assoc. EPA Noise Criteria Sample N o & Land use category DescriptionMaximum Noise EPP criteria (dB) 7am to 10pm10pm to 7am 1: c, fCnr Sales Yard Rd & Penrice Rd : b, fCnr Penrice Rd & Rowland Street : a, fSalem Rd, near Penrice bore : c, fSalem Rd (opposite V. Dibiase) : c, fKalimna Rd (opposite H. Schwarz) : c, fKalimna Rd (opposite C. Bray) : c, fCnr Kalimna & Waetchers Rd : c, fCnr Kalimna & Stockwell Rds : c, fStockwell Rd (mid Penrice & Kalimna Rds) : c, fPenrice Rd (mid Stockwell Rd & quarry entrance) Environment Protection (Noise) Policy 2007— Land use category Indicative noise factor (dB(A)) DayNight Rural Living (a)4740 Residential (b)5245 Rural Industry (c)5750 Light Industry (d)5750 Commercial (e)6255 General Industry (f)6555 Special Industry (g)7060

Noise Performance – 7am to 10pm LocationMaximum Noise EPP criteria Rural Living (Penrice Target) Recorded Noise Level Above Noise EPP criteria Above Rural Living Noise measurements undertaken independently by Bassett Acoustics In-house program established to monitor these points for noise on a routine basis as well as Independent program (bassett)

Noise Performance – 10pm to 7am LocationNoise EPP criteria Rural Living (Penrice Target) Noise LevelAbove Noise EPP criteria Above Rural Living

Train Loading LocationNoise EPP criteria Rural Living (Penrice Target) Noise LevelAbove Noise EPP criteria Above Rural Living Measured between the hours of 8am and 10am

22 Noise Pollution Additional Strategies Noise monitoring - improved frequency internal and external Comprehensive noise model study by approved acoustic consultant Weather station- integrating wind conditions with noise model studies Increase amount of internal vegetation and/or additional environmental embankments through Strategic Visual Amenity Plan New entrance / improved front road layout Contractor truck maintenance Speed reduction Penrice Rd Improve the train loader noise screen by mid 2009

Sources - Internal Traffic Penrice internal vehicle traffic:  Haul trucks (10)  Loaders (11)  Excavators (4)  Articulated dump trucks (2)  Bulldozer  Grader  Light vehicles (13)  Forklift  Staff cars & Visitors  Service related vehicles (trucks, light vehicles, cranes)

Sources - External Traffic Financial YearAverage truck movements/day 04/ / / / /09166 (predicted) This data is movements exiting the plant on a 6 day per week basis based on tonnage sold per annum and tonnes per load

25 Traffic Monitoring Vehicle Traffic Counter Installation: “Metro Count” Traffic counter to be installed prior to 24 Jan 09 Proposed location on the Mine entrance / exit. Can be used to install on Penrice Rd to measure speed of vehicles Able to measure: Total number of vehicles Type of vehicle (can distinguish from vehicle classes 1 through to 12) Speed of vehicle ( 10 to 160 km/Hr) Vehicle direction Time and Date Data output: Reporting options based on day/week/month/type of vehicles/speed Identification of ‘peak’ periods of traffic movement by vehicle type

Current Management Practices for traffic Internal  Hours of operation  Preventative maintenance program (noisy brakes, bearings, exhaust etc)  Signage  Speed limits External  Signage (refer photograph)  Driver education (90% complete since Sept 08 – 84 truck drivers / 22 companies)  Lobbying for reduced speed limit on Penrice Rd  Truck wash improvements  Redevelopment of site entrance ($1.2m)  Traffic Monitoring for vehicle type, speed and movement  Compliance & Enforcement (C&E) of truck loads (avoiding overloading)

Traffic Signage

New Truck Wash Spray System

Traffic Management additional strategies What could we do differently?  Other entry/exits to the plant have been reviewed  Increase use of rail logistics  Redirection of traffic  Altering the intersection at Penrice & Stockwell Rd