1

CCG MeetingAngaston 14th 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 (emailed, 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 Operations Eastern Area CCG Western Area Proposal MPL

Management Element % % %

Visual Management 27 71 16 42

Rehabilitation – revegetation, creek/fauna etc.

5 13 13 34

Community Consultation 11 29 7 18

Surface run off 5 13 1 2 5 13

Gully Winds 4 10

Top Soil 4 10

Hours of Operation 12 31 4 10

Dust Management 25 66 1 2 3 8

Blasting & Noise Management 26 68 3 8

Water Management 6 16 1 2

Mound Stability 1 2

Closure Plan 5 13

Mine Entrance 1 2

European Culture Heritage 1 2

Boundary Fence 1 2

Height of Hill 1 2

Drag out Management 15 39

Traffic Management 11 29

Light Spillage Management 8 21

Unauthorized mounding 1 2

Safety

Hours of Operation

Monday to Friday:

Load and Haul 6am to 5.30pm

Sales Yard 6am to 6pm

Aggregate Plant, Mobile Crusher 6am 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 Sales 6am 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

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Air Pollution

Water removed from Mine Pit

Calendar Year Water usage

0

20000

40000

60000

80000

100000

120000

140000

160000

2001 2002 2003 2004 2005 2006 2007 2008

Year

Kilo

litre

s u

sed

Water Total

Dust Supression

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

11

0

100

200

300

400

500

2001 Winter

2001 Summer

2002 Winter

2002 Summer

2003 Winter

2003 Summer

2004 Winter

2004 Summer

2005 Winter

2005 Summer

2006 Winter

2006 Summer

2007 Winter

2008 Summer

"Larry martin's Driveway entrance"

"Salem Road Bore"

"Seelander's driverway"

"Opposite H Schwartz residence"

"NW Corner Gerlach Property"

Baseline (2 Km distant)

Baseline, 2nd Company Data

Air Pollution

Graphical representation of Static Dust fallout results 2001-2008

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

12

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2001 Winter 2001 Summer 2002 Winter 2002 Summer 2003 Winter 2003 Summer 2004 Winter 2004 Summer 2005 Winter 2005 Summer 2006 Winter 2006 Summer 2007 Winter 2008 Summer

P2

P3

P4

P5

P6

P1

Baseline (2 Km distant)

Air Pollution

Graphical representation of Static Dust fallout results 2001-2008Reduced 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)

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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

P1P2

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

Blast Overpressure

80

85

90

95

100

105

110

115

120

125

Jun

-96

Dec

-96

Jun

-97

Dec

-97

Jun

-98

Dec

-98

Jun

-99

Dec

-99

Jun

-00

Dec

-00

Jun

-01

Dec

-01

Jun

-02

Dec

-02

Jun

-03

Dec

-03

Jun

-04

Dec

-04

Jun

-05

Dec

-05

Jun

-06

Dec

-06

Jun

-07

Dec

-07

Jun

-08

Dec

-08

Date

OV

er Pr

ess

ue d

B

Over Pressure dB db Limit

Long term Trend

Relevant Australia Standard: AS 2187.2 2006. 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 No & Land use category

Description Maximum Noise EPP criteria (dB)

7am to 10pm 10pm to 7am

1: c, f Cnr Sales Yard Rd & Penrice Rd 61 52.5

2: b, f Cnr Penrice Rd & Rowland Street 58.5 50

3: a, f Salem Rd, near Penrice bore 56 47.5

4: c, f Salem Rd (opposite V. Dibiase) 61 52.5

5: c, f Kalimna Rd (opposite H. Schwarz) 61 52.5

6: c, f Kalimna Rd (opposite C. Bray) 61 52.5

7: c, f Cnr Kalimna & Waetchers Rd 61 52.5

8: c, f Cnr Kalimna & Stockwell Rds 61 52.5

9: c, f Stockwell Rd (mid Penrice & Kalimna Rds)

61 52.5

10: c, f Penrice Rd (mid Stockwell Rd & quarry entrance)

61 52.5

Environment Protection (Noise) Policy 2007—31.3.2008

Land use categoryIndicative noise factor (dB(A))

Day Night

Rural Living (a) 47 40

Residential (b) 52 45

Rural Industry (c) 57 50

Light Industry (d) 57 50

Commercial (e) 62 55

General Industry (f) 65 55

Special Industry (g) 70 60

Noise Performance – 7am to 10pm

Location Maximum Noise EPP criteria

Rural Living

(Penrice Target)

Recorded Noise Level

Above Noise EPP criteria

Above Rural Living

1 61 47 47 - -

2 58.5 47 40 - -

3 56 47 49 - 2

4 61 47 42 - -

5 61 47 45 - -

6 61 47 47 - -

7 61 47 41 - -

8 61 47 44 - -

9 61 47 46 - -

10 61 47 42 - -

• 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

Location Noise EPP criteria

Rural Living

(Penrice Target)

Noise Level Above Noise EPP criteria

Above Rural Living

1 52.5 40 43 - 3

2 50 40 35 - -

3 47.5 40 36 - -

4 52.5 40 40 - -

5 52.5 40 34 - -

6 52.5 40 38 - -

7 52.5 40 41 - 1

8 52.5 40 45 - 5

9 52.5 40 50 - 10

10 52.5 40 49 - 9

Train Loading

Location Noise EPP criteria

Rural Living

(Penrice Target)

Noise Level Above Noise EPP criteria

Above Rural Living

1 61 47 58 - 11

7 61 47 44 - -

8 61 47 47 - -

9 61 47 49 - -

10 61 47 53 - 6

Measured between the hours of 8am and 10am

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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 Year Average truck movements/day

04/05 116

05/06 105

06/07 104

07/08 129

08/09 166 (predicted)

This data is movements exiting the plant on a 6 day per week basis based on tonnage sold per annum and 27-32 tonnes per load

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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