Three Kings Quarry Excellence in Environmental Management - - PowerPoint PPT Presentation

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Three Kings Quarry Excellence in Environmental Management - - PowerPoint PPT Presentation

Dec 08, 2022 39 likes •519 views

Three Kings Quarry Excellence in Environmental Management Presented by Gordon Laing 1 Quarry Manager (MIQ) Winstone Aggregates Environmental Management Background: Winstone Aggregates has a formal Environmental Policy. Proactive

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Three Kings Quarry

Excellence in Environmental Management

Presented by

Gordon Laing

Quarry Manager (MIQ)

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Winstone Aggregates Environmental Management

Background:

 Winstone Aggregates has a formal Environmental Policy.  Proactive approach to implementing a high standard of

performance at all quarries.

 Implementation of environment policy led through

Environmental Management System based on ISO 14001.

 Records & procedure manuals at all sites.  Internal site inspections, external audits and monthly

reporting.

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Winstone Aggregates

Contribution to the Aggregate and Quarrying Industry

 Winstone Aggregates is an industry leader:

– Promoting the need for quarries and aggregates in the community

 Site environmental management & public

relations efforts:

– Lead by example

 Environmental Management:

– Employment of best practice

 Compliance levels:

– Often exceeded

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Three Kings Quarry

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Location

Approximately 6km from Central Auckland

2 1 Scale (kms)

Three Kings Quarry (Approximate boundary

  • nly)

Auckland

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Surrounding the site

 Mainly residential.  Some business

development.

 Auckland City

Council Reserve to the north-west.

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 Environmental management decisions

  • ften based on discussion with local

residents.

 Most residents reasonable, happy to work

together for mutually agreeable results.

Operational Issues

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 Another group refuses to accept the existence of any

quarry in Three Kings’ urban setting.

 Campaigns to close the quarry down.  Group creates obstacles to effective environmental

management.

 Disseminates misinformation and causes delays.

Operational Issues

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New neighbours

satisfactory outcome all parties

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Originality and Innovation in Environmental Management Initiatives

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 Community Liaison  Public Relations  Other Initiatives

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Community Liaison

 Initiatives began in 1995.  Has evolved into the Three Kings Quarry Site

Liaison Group.

 Quarry Management Plan developed in 2001 in

conjunction with the Site Liaison Group.

 Three Kings Quarry continues to operate in

accordance with this Quarry Management Plan.

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 Work with public

relations advisers to develop communications strategy.

 Public open days and

special information

  • pen days have been

held.

Consultation at an open day

Public Relations

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Consultation itself is mandatory

Voluntary processes of consultation

– e.g. both mediation and public meetings evolve by agreement into mandatory inclusions in the District Plan or consent conditions.

Environmental management initiatives

– Evolved from consultation and Site Liaison Group meetings. – Became voluntary actions – Included later in District Plan or consent conditions to become mandatory.

Most management initiatives outlined in “Originality and Innovation” section discussed

– Were voluntary – Now mandatory

Environmental Management is both Voluntary and Mandatory

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Site visit invitations to:

 Commissioners  Community board representatives  Journalists  Special interest group

– e.g.Resource Management & Law Association

Open & transparent

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 Applied to the public relations process:

– has kept it functional.

 Some sectors appreciate the effort applied:

– eg. Auckland City Council confirmed in writing that all previous environmental effects had been mitigated or removed.

Persistence and patience

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 Current site information in a folder at the local public

library.

 Current site info on the Winstone Aggregates’ website:

www.winstoneaggregates.co.nz

 Resources and funding for local primary school projects.  Provision of an educational CD (“The Earth Beneath Us”) for

primary schools.

 Provision of information for primary, secondary and tertiary

students.

Other initiatives

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Environmental Management Practices deployed at Three Kings Quarry

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 Compliance for many years.  Rockbreakers no longer in use.  Quarry gate opened before start of business for

trucks to wait inside the site.

 Ongoing upgrade and maintenance of mobile site

equipment.

 Right to refuse loading of poorly maintained

trucks (e.g. no muffler).

Noise

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Vibration / Airblast

 No Blasting at Three Kings (currently).  Procedure in place in Quarry Management

Plan should blasting be required.

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Dust monitoring

 Total Suspended

Particulate samplers:

– Monitor the site – Three locations

 Wind and weather

monitoring:

– Record rain, wind speed and direction

 Backup:

– Minivol monitoring is carried out during summer months

 Reporting:

– Update Site Liaison Group at liaison meetings with quarterly results

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Dust suppression

Water sprinkler system:

set up around perimeter of

working site

wets faces and working area

Water cart:

 dampens areas as a back up

to the sprinkler system

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Dust supression

Haul roads and stockpiles are wetted to minimise dust.

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Emissions

 Time lapse video monitoring  Maintenance procedure for all mobile plant, reduce exhaust

emissions

 Exhaust pipes of site and Winstone transport trucks and

machines not directed downwards

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Traffic Management

 Hours of operation

– 7am to 8pm daily – load out 7am to 5pm only.

 Covering of loads

– Notice located next to weighbridge speaker phone

 Clean trailer drawbars

– Drivers asked to do this before leaving site

 Routine checks at gateway

– Any aggregate spills are cleaned up immediately – No questions asked

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Caring for the Community

 Installation of a wheel wash

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Purpose of dewatering

– Maximise extraction of scoria – Scarce & valuable resource. – Extending life of Three Kings operation preferable to removal of one of few remaining scoria cones.

Ground Water

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Ground Water

Comprehensive Monitoring and Contingency Plan:

– to track behaviour of groundwater

Depth measurement:

– Wide network of groundwater monitoring bores

Surface level:

– Network of ground surface monitoring points – Precise level survey network

Regular reporting of data:

– Required under Monitoring and Contigency plan – To Council and – To Site Liaison Group

Drill rig in action preparing groundwater monitoring bores

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Partnerships

 Implementation of residential property indemnity scheme  Partnership sought during consenting process to provide

water for Auckland Municipal supply through dewatering

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Landscape / Visual

Residential properties looking to the east from Big King Reserve

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Landscape / Visual

 Quarry

workings now below street level

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Landscape / Visual

View from elevated residential properties to the north-east .

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Landscape / Visual

Construction of 2-3m high earth bund

  • n Mt Eden Road frontage
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Landscape / Visual

Upgrade of perimeter safety fence

– provides more aesthetic barrier to the Big King reserve.

Boundary Fencing between quarry and reserve

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Landscape / Visual

 Demolition and removal of unnecessary unsightly

structures.

 Removal and replacement of workshop to a less

  • btrusive location.

 Clean up and remove surplus machinery and

scrap.

 Planting native vegetation along the northern

boundary.

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Exposed faces worked

  • ut in the upper pit are

revegetated Exposed faces not worked in the lower pit are hydroseeded

Landscape / Visual

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Landscape / Visual

 Preparation and implementation of site

revegetation management plan

 Hydroseeding and watering of quarry faces not

currently being worked

 Hydroseeding and revegetation of completed

faces.

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Three Kings site

1989

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Three Kings site

1997

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2003

Three Kings site

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Three Kings site

2005

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Quarry End Use

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 Options have been explored with Site Liaison Group and

incorporated into the Quarry Management Plan.

 Currently preferred option:

– Cleanfill to road level. – obtain planning approval for mixed residential / commercial / light-industrial development.

 Conceptual work started and discussed with Site Liaison

Group.

End Uses ?

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Majority of the community not aware of quarry’s presence.

Standard of performance at Three Kings is consistent with what many communities now expect of our industry.

Overall Environmental Impact

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2 1 Scale (kms)

Conclusion

Three Kings

Quarry

– An excellent example of “sound environmental management for the aggregate and quarrying industry.”

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Acknowledgements

Alan Happy

– Resource and Environmental Manager, (FIQ)

Michael Harris

– Engineering Geologist, (AMIQ)

Arsini Hanna

– Northern Region Environmental Co-ordinator (AMIQ)

Christina Renhart

– Project Leader, Projects

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Thank you