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CCG MeetingAngaston 1st April 2009

Mine Operation Update

Eastern area

Shaping and topsoil addition continuing

Preparation for planting of trees and grass

Continuing to crush on western side of eastern mound

Western MPL

Topsoil removal continuing

Topsoil sample submitted for testing and sampling continuing

Jaeckeli Creek management and western Vegetation plan submitted to PIRSA

Other

Dust suppressant trial Tallow based product not optimum, penetration low. Investigation of different product underway.

Two maintenance shutdowns on Aggregate Crushing plant March 2nd and 3rd down 48hr March 20th down 12 hours

Rockbreaker hammer not working since the 24th March. Mechanical repair waiting on damage assessment.

Osborne crushing plant not working 31st March. Repair expected completion date 2nd April

Front road pot holes repaired and graded

Fox baiting program commenced

Two mobile crushers decommissioned and removed– dust & noise emission initiative

Mine Operation Update

Mobile Crusher Plant 24 hour trial

Conducted over 2 days 16th and 17th March

Noise, dust and light spillage monitored on both nights and crossed matched against weather station data

o Light spillage – operation evident but no off site spillageo Dust emmissions controlledo Noise levels recorded below EPA criteria

Trial successful from operational aspect

Three environmental complaints (noise, dust, hours of operations) received from second night of operation, no complaints from first night

No immediate plans for 24 hour operation

Weather Reading Area dBl reading

Time (All AM) Temp Hum W/ S W/ D

Edwards 37 3.15 11.2 93 3.2 SW

D.Hage 33 3.17 11.2 93 3.2 SW

Crn. Penrice and Salem roads 32 3.20 11.2 93 3.2 SW

Salem Rd. South 35 3.24 11.2 93 3.2 SW

Salem Rd. Southeast 35 3.25 11.2 93 3.2 SW

Salem Rd. East 42 3.27 11.2 93 3.2 SW

Salem Rd. North east 38 3.31 11.1 94 6.4 SW

Crn. Salem and Kalimna Rd’s. 38 3.35 11.1 94 6.4 SW

Kalimna Rd. East 39 3.38 11.1 94 6.4 SW

Kalimna Rd. northeast 40 3.40 11.1 94 6.4 SW

Kalimna Rd. NN east 42 3.44 11.1 94 6.4 SW

Kalimna Rd. north 42 3.45 11.1 94 6.4 SW

Kalimna Rd. northwest 37 3.50 11.1 94 6.4 SW

Kalimna Rd. NN west 40 3.52 11.1 94 6.4 SW

Stockwell Rd. (Newland) 44 4.00 11.1 93 3.2 SW

Stockwell Rd. (Rail line) 40 4.05 11.1 93 3.2 SW

Stockwell Rd. (mid point) 42 4.06 11.1 93 3.2 SW

Crn. Penrice & Stockwell Roads (Slottergraff’s)

38 4.15 11.1 93 3.2 SW

Average 38

Mobile Crusher Plant 24 Hour Trial Noise Monitoring ResultsDate: Tuesday 17th March 2009 12.30am to 5.30am

Weather Reading Area dBl reading

Time (All AM) Temp Hum W/ S W/ D

Edwards 45 2.20 13.4 78 30.6 SSW

D.Hage 40 2.25 13.4 78 30.6 SSW

Crn. Penrice and Salem roads 40 2.28 13.4 78 30.6 SSW

Salem Rd. South 38 2.30 13.4 79 22.5 S

Salem Rd. Southeast 39 2.32 13.4 79 22.5 S

Salem Rd. East 42 2.34 13.4 79 22.5 S

Salem Rd. North east 36 2.37 13.4 79 22.5 S

Crn. Salem and Kalimna Rd’s. 38 2.39 13.4 79 22.5 S

Kalimna Rd. East 39 2.41 13.4 79 22.5 S

Kalimna Rd. northeast 45 2.45 13.4 79 22.5 S

Kalimna Rd. NN east 40 2.50 13.4 79 22.5 S

Kalimna Rd. north 41 2.53 13.4 79 22.5 S

Kalimna Rd. northwest 45 2.55 13.4 79 22.5 S

Kalimna Rd. NN west 45 3.00 13.7 77 22.5 S

Stockwell Rd. (Newland) 45 3.02 13.7 77 22.5 S

Stockwell Rd. (Rail line) 45 3.04 13.7 77 22.5 S

Stockwell Rd. (mid point) 45 3.06 13.7 77 22.5 S

Crn. Penrice & Stockwell Roads (Slottergraff’s)

45 3.08 13.7 77 22.5 S

Average 42

Rural living standard 50dBa

Mobile Crusher Plant 24 Hour Trial Noise Monitoring ResultsDate: Wednesday 18th March 2009 12.30am to 4.30am

Noise Abatement Initiatives

Noise monitoring program at Penrice Rd residents

Trial delayed start Train loading – 0730am start Monday to Friday – 0800hrs start Saturday and Sunday

Two trains on Thursday 9th and Friday 17th for Easter and Vintage Festival

Two Mobile Crushers removed from site – one located Council Pit and one on Brighton Lite Hill

Sales Yard 2 day trial 2nd & 3rd April o No trucks to enter site prior to 0600hrso No loaded truck to leave site prior to 0630am

Investigate possibility to preload Nexy trucks PM on site, store off site for delivery AM next day

Tarp survey

Letters to freight companies issued requiring tarping compliance by 30th April

Tarping survey conducted of trucks exiting site on 30/03/09, it was found;

89% of the trucks used the truck wash.

Of the 310 trucks exiting the site 80% of them, 247 trucks, were fitted with tarps.

Of those 247 trucks 63% used there tarp.

37% of trucks that could tarp, didn’t.

This is a vast improvement from the last survey conducted and with further implementation we shall see all trucks tarping.

Freight companies were recorded and non compliant drivers have been notified of the requirements to tarp.

Tarp Letter

TARPING OF TRUCKS LEAVING PENRICE MINE SITE

An EPA licence condition for Penrice Quarry & Mineral (PQM) is for all truck movements leaving the Quarry to be tarped.

Penrice is a community caring business and is committed to eliminating any dust issues that may impact our neighbours.

The tarping of vehicles is seen to be a step that is required to eliminate dust emission from vehicles leaving the Quarry.

It is now PQM policy for all vehicles fitted with a tarp to comply with this by the end of April 2009.

Should a tarp need to be installed to a vehicle, PQM require this to be undertaken to comply with this policy by the 30th June 2009.

Regards

Penrice SODA PRODUCTS PTY LTD

Andrew Maynard

Sales Manager – Quarry & Mineral

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Dust Improvements

New water delivery system to the site

Trial dust suppressant

Operator education on dust generation activities

Modifying operations on high wind conditions

New sprinklers on the truck wash

Recently removed mobile crushers from site

Tarping of exiting trucks

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Dust Emission Reduction InitiativesNo Plant Item Estimated

Completion Date Impact

1 Front entrance Road watering, only water to gate 1/4/09 Reduce water/drag out to Penrice Rd 2 Penrice Road Change to Envirosweep street sweeper 6 -04- 09 Improve sweeping of drag out 3 Truck wash Upgrade water recycle system 31/07/09 Improve washing efficiency 4 Osborne train

loader Commence water sprays to Osborne stone ½ hour prior to loading

2/04/09 Reduce emissions at return circuit

5 Osborne train loader

Maintain chute water sprays with polocitrus Serviced quarterly Comments from residents this is working

6 Osborne plant Apply water sprays on tertiary plant & Q10 at all times

1/04/09 Reduce dust at these handling points

7 PC1 Crusher Auto water spray on trucks entering to unload

31/07/09 Negates manual activation by operator

8 PC1 Crusher Shroud unload bin in shade cloth 31/07/09 Improve effectiveness of water sprays 9 ABC Stockpiles Shroud perimeter 30/04/09 Reduce dust emission through wind erosion 10 ABC Stockpile Spray completed pads with green covering 30/04/09 Reduce dust emission from stockpiles 11 Fine Mill Plant Close down from 1/5/09 1/5/09 Customers to be notified 12 Top Soil

Stockpile Spray stockpile with green covering 30/04/09 Reduce possible dust emission from wind & rain?

13 Aggregate Plant Complete auto water sprays of working area around plant

30/08/09

Reduce dust from vehicle movements

14 Aggregate plant feed stock piles

Erect a overhead water spray system for all trucks to pass under before unloading to stockpiles

30/9/09 Reduce dust in crushing plants

15 Aggregate Plant Increase water application during start up/shut down and when empty with automatic sprays

30/04/09 Check if possible

16 Aggregate Plant Bins

Automate sprays to be on all day 15/04/09 Reduce dust in strong wind conditions

17 Aggregate Plant Improve water sprays at sand output end 30/06/09 Reduce dust in string winds 18 OI Glass Plant Assemble foam spray applicators 30/09/09 Reduce dust emission in strong winds 19 Aggregate Plant Review use of shade cloth in this area to

reduce wind impact 31/07/09 Reduce dust emission in strong winds

20 Osbourne train Review ability to stop return <50mm stone 30/6/09 Reduce dust emissions at return bins 21 Front entrance Seal roads from entrance to weigh bridge 30/10/09 Reduce drag out to Penrice Rd

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Possible Long Term Engineering Solutions

Potential options o Dust extraction on all crusher transfer points.o Enclosing the conveyor belts.o New crushing plant for glass grade limestone.o Lufting at sand output conveyor.o Wheel wash.o Auto bins aggregate plant for loading

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Personal Dust MonitoringPersonal Dust Monitoring Results from testing conducted by HSE

& MAQUOSH March 18th 2009

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Subject #1

Subject #2

Subject #3

Subject #4

Subject #5

Subject #6

Subject #7

Subject #8

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TSP & PM10 Dust Results March

TSP Limits: 120 µg/m3

Date TSP (µg/m3) High wind Sp (km/h) Wind direction

2/03/2009 36 57.9 SSE

5/03/2009 73 41.8 NNW

8/03/2009 57 67.6 SSW

11/03/2009 52 43.5 SSW

14/03/2009 79 77.2 NNW

17/03/2009 58 46.7 SSW

20/03/2009 50 48.3 NNE

23/03/2009 115 53.1 SSW

26/03/2009 165 75.6 SSW

29/03/2009 102 57.9 SSW

Average 79    

PM10 Limits: 50 µg/m3

Date PM10 (µg/m3) High wind Sp (km/h) Wind direction

2/03/2009 15 57.9 SSE

5/03/2009 12 41.8 NNW

8/03/2009 12 67.6 SSW

11/03/2009 20 43.5 SSW

14/03/2009 31 77.2 NNW

17/03/2009 15 46.7 SSW

20/03/2009 Invalid airflow 48.3 NNE

23/03/2009 Invalid airflow 53.1 SSW

26/03/2009 32 75.6 SSW

29/03/2009 22 57.9 SSW

Average 20

PM10 20/3/09, 23/3/09 : Airflow outside defined limits consider sample as invalidunit's air mass flow control meter was recalibrated

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Site map

Dust Monitoring TSP, PM10

North

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Water Supply

Pit water supply critical – investigate alternatives