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CCG MeetingAngaston 3rd December 2008

Penrice CCG Meeting Action Arising

BLAST MONITORING

Chris Linke Monitor Site

Blast Data 21/11/09

60 holes located in south east pit face

Vibration 0.53 mm/sec (Aust Std 5.0 mm/sec)

Overpressure 95.4 dBL (Aust Std 115 dBL)

Salem Road Monitor Site (near Linke driveway entrance)

Vibration 1.32 mm/sec

Overpressure 106.6 dBL

Further monitoring - 3/12/08 and the next week then relocation to south west of the mine

Penrice – CCG Meeting

Blasting – Draft

Environmental Outcome• No nuisance to adjacent residents and sensitive receptors per definition of the

relevant Australian Standard, currently AS2187.2 (2006)• Blasting will occur on weekdays (excluding Public Holidays) between 9.00 am

and 4.30 pm.• Where the number of blasts in any year is estimated to be more than 20% above

the average of the last 5 calendar years annual blast number, this will be communicated to the PCCG and community.

Environmental Criteria for Measurement• Blasting complies with Australian AS 2187.2 (2006) for overpressure (noise)

(115dB environmental limit with 5% to a maximum of 120dB) and vibration levels (environmental limit 5 mm/s with 5% to a maximum of 10 mm/s)

• Not more than 1% of the annual blasts will be out side these times

Strategies for Management Compliance with Penrice Mine Operating Manual (procedure reference QFM2) • Overpressure and vibration levels will be measured during all scheduled blast

activities • Blast modelling will be introduced using available industry technology. • Penrice will engage with community on alleged blasting damage to private

infrastructure and investigate. Any mitigation measures will be determined and implemented based on investigation outcomes.

• Ongoing review of new blasting technology to reduce vibration and air pressure • Ongoing training of blast technicians • Visual blast records and monitoring data maintained for each blast event• Annual audit of blast procedures by external parties

Penrice CCG Meeting Action Arising

Barossa & Light Landscape Study 2005

• Study recommendations will be a part of a regional/council consultation process in 2009

• Particular emphasis of quarry impact

• Importance of specific areas/features

• Recommendations 5, 6, 7, 8

Geotechnical Report• Initially supplied to PIRSA

Penrice – CCG Meeting

Key Overburden Issues

• 2007 recognized insufficient space for overburden

• Storage overburden in the east area since early 1990’s

• Mostly for low grade limestone in future years

• Space impacted by height cap of the eastern storage area

• 2M mt behind minimum extraction plan (Maptek) requirements

• 4M mt planned in 2008 of both schist & low grade limestone to economically match out the internal haul fleet capacity

• Storing low grade limestone in the north end of pit that will increase in coming years as the west face storage area is crushed to consume this inventory – 3M mt.

• Extraction volumes limited in the last 5 months due to space issues

• Consistent at all meetings with space issue and time constraints

Penrice – CCG Meeting

MAPTEK 30 year Mine PlanIncreased overburden requirements due to geology & ore quality of high grade

limestone, 2008/09 plan 4m mt with less in later yearsOf the 12.5M mt extracted in 4.4 years, 10m mt is schist

Actual & Proposed Material Movements mt

PeriodHigh Grade

LS Plan

Maptek Schist &

LGLS Plan Cumm.

Actual Schist &

LGLSCumm

FY 04/05 1,200,000 2,455,590 2,455,590 2,101,369 2,101,369

FY05/06 1,200,000 3,002,251 5,457,841 2,612,773 4,714,142

FY06/07 1,200,000 3,312,064 8,769,905 3,091,348 7,805,490

FY07/08 1,200,000 3,312,064 12,081,969 3,847,178 11,652,668

FY08/09 1,200,000 2,445,733 14,527,702 884,058 12,536,726

FY09/10 1,200,000 1,579,403 16,107,105 12,536,726

FY10/11 1,200,000 1,579,403 17,686,508 12,536,726

FY11/12 1,200,000 1,579,403 19,265,911 12,536,726

FY12/13 1,200,000 1,206,489 20,472,400 12,536,726

FY13/14 1,200,000 1,206,489 21,678,889 12,536,726

Penrice – CCG Meeting

Schist Overburden Extraction Volume (M mt)

Annual Overburden (Schist) Removal

2.4

1.81.95 1.95

0 0 0 0 0 00

0.5

1

1.5

2

2.5

3

07/08 08/09 09/10 10/11 11/12 12/13 13/14 14/15 15/16 16/17

Penrice – CCG Meeting

CCG - MPL and Whole of Mine review

• Gerlach land purchase contracted in December 2007

• In discussions with PIRSA since March 2008 on the MPL and the process with statutory consultation completed in August 2008

• Agreed with PIRSA for CCG to review environmental outcomes for whole of mine operation (not just the west MPL area)

• This process will take another 6 -9 months

Penrice – CCG Meeting

Visual Amenity

Penrice is:

• Completing the profiling of the whole east and north faces to fit the hill line land form

• Looking to find a temporary visual solution to the west face of east while crushing the low grade limestone inventory

• It is not standing still and has limits on the capacity to remedy all areas of concern

Penrice – CCG Meeting

Visual Amenity

In the meantime Penrice is:

• Completing the profiling of the whole east and north faces

• ( see photos)

• Looking to find a temporary visual solution to the west face while crushing the low grade limestone inventory

• It is not standing still and has limits on the capacity to remedy all areas of concern

Penrice – CCG Meeting

Visual Amenity

In the meantime Penrice is:

• Completing the profiling of the whole east and north faces

• ( see photos)

• Looking to find a temporary visual solution to the west face while crushing the low grade limestone inventory

• It is not standing still and has limits on the capacity to remedy all areas of concern

Penrice – CCG Meeting

Strategic Visual Amenity Plan Development Visual Amenity is established through land form and vegetation, Oxigen are working up a strategic plan for the site covering

Existing Mine Area Increase plantings and renew poor or dead vegeatation and under-story plantings to increase wildlife habitat – see map

Eastern Area Estimated 30,000 trees/shrubs required for completion of eastern face at 12000/annum Plantings on the north & east faces to RL400 in progress Grass west face of eastern mound - low grade limestone and iron stone road benchesWestern Area

Interim MPL proposal Outside Mine Boundary

In conjunction with council/residents/land owners agree a tree planting regime.

(Suggested areas include areas of Stockwell Road & Penrice Road)

Penrice – CCG Meeting

Interim WEST MPL (South-block)

• This will allow PSP to continue mine operations for 9 – 12 months

• This time will be needed to review all the environmental outcomes for the whole of mine site by the CCG and

• To investigate other OB disposal options that are• economical• operationally practical and • do not limit the ability to extract high grade limestone

• OXIGEN plan

• Lease conditions are as detailed by PIRSA

• A MARP with environmental outcomes and criteria are being finalized to match the newly issues lease conditions

• Penrice is committed to finding solutions to community concerns