Redevelopment of former industrial lands in the australian capital territory
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NATO/CCMS Pilot Study June 2005 - Ottawa, Canada. Redevelopment of Former Industrial Lands in the Australian Capital Territory. Toby Hobbs Coffey Geosciences, Australia. An Overview. Site Background Contamination Issues Regulatory Framework The Assessment & Remedial Approach

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Redevelopment of Former Industrial Lands in the Australian Capital Territory

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Redevelopment of former industrial lands in the australian capital territory

NATO/CCMS Pilot Study

June 2005 - Ottawa, Canada

Redevelopment of Former Industrial Lands in the Australian Capital Territory

Toby Hobbs

Coffey Geosciences, Australia


An overview

An Overview

  • Site Background

  • Contamination Issues

  • Regulatory Framework

  • The Assessment & Remedial Approach

    • Planning & Costing

    • Management of Project Uncertainties

    • Assessment

    • Site Remediation & Restoration

  • Lessons Learned

NATO/CCMS June 2005 - T Hobbs


The australian capital territory

The Australian Capital Territory

NATO/CCMS June 2005 - T Hobbs


Site history

Site History

  • Land Uses:

    • Government Printing Presses

    • Government Vehicle Fleets

    • Government Bulk Fuel Storage Depot

    • Power Station (Coal & Diesel)

    • Timber Mills & Construction Depots

    • Blacksmiths & Metal Fabricators

    • Maintenance Workshops

    • Rail Yards

    • Bulk Warehousing

NATO/CCMS June 2005 - T Hobbs


Contamination issues

Contamination Issues

  • Soil

    • Contamination over large areas (up to 7,000m2)

    • Contaminated soil at depths of up to 6.5m

    • 40,000m3 excavated and treated

    • Inorganic and organic contaminants

  • Groundwater

    • A shallow water table(<2.5m depth)

    • Areas of “free phase” hydrocarbon

    • Dissolved phase contaminants over many areas including one site of 10,000m2

    • Over 4 megalitres of groundwater recovered & treated

NATO/CCMS June 2005 - T Hobbs


A high profile sensitive site

A High Profile & Sensitive Site

NATO/CCMS June 2005 - T Hobbs


Regulatory processes

Regulatory Processes

  • Environmental Protection Agreement

    • ACT Land Development Agency

    • ACT Environmental Protection Agency

  • Site Audit Scheme

  • Independent Government Appointed Advisor/Reviewer

    A collaborative approach was adopted for the project with a focus on continual improvement and use of best practice methodology

NATO/CCMS June 2005 - T Hobbs


Assessment remedial approach

Assessment & Remedial Approach

  • Site history review & technical appraisal

  • Cost planning

  • Design of a site-specific Audit Protocol

  • Staged assessment to address higher risk areas and unlock valuable sites for early development

  • Adoption of Contaminant Management Plans

  • Analysis of uncertainty

NATO/CCMS June 2005 - T Hobbs


The kingston foreshore precinct site audit areas a staged approach

The Kingston Foreshore Precinct Site Audit Areas – A Staged Approach

NATO/CCMS June 2005 - T Hobbs


Coping with project uncertainty

Coping with Project Uncertainty

“…the inherent presence of uncertainty is the main cause of remediation project cost and time blow outs”

So how did we reduce this inherent project uncertainty in the Australian Capital Territory?

  • Appropriate land investigations

  • Use of risk management techniques

  • Contingency planning

  • Communication

NATO/CCMS June 2005 - T Hobbs


Appropriate site investigations

Appropriate Site Investigations

  • Focus on desired outcomes at the outset

  • Ask the right questions

  • Look critically at your work as well as that of others

    As a minimum,

    an accurate model

    of site conditions is required

NATO/CCMS June 2005 - T Hobbs


Risk management techniques

Risk Management Techniques

There are significant benefits to be gained through the proactive management of risk

  • Risk Assessment (Australian Standard AS4360:1999 was adopted)

NATO/CCMS June 2005 - T Hobbs


Contingency planning

Contingency Planning

  • Have measures in place to identify potential project issues and risks

  • “Plan for the worst and hope for the best”

  • Aim to strike a balance between over- conservative and ‘realistic’ contingency planning

NATO/CCMS June 2005 - T Hobbs


Communication of uncertainties

Communication of Uncertainties

An important but often under-utilised tool:

  • Communication for all: Project teams, clients, stakeholders & regulators

  • Communication of uncertainties should:

    • Start early

    • Be effective; and

    • Form part of the core on-going project management strategy

NATO/CCMS June 2005 - T Hobbs


Case study remedial program at bulk fuel storage depot

Case Study - Remedial Program at Bulk Fuel Storage Depot

Recovery & Treatment of Hydrocarbon Based Contaminants

  • De-watering

  • “Free phase” product & groundwater recovery

  • Contaminated soil excavation

  • On-site water treatment

  • On-site soil treatment

NATO/CCMS June 2005 - T Hobbs


Remedial works at the kingston site

Remedial Works at the Kingston Site

NATO/CCMS June 2005 - T Hobbs


Case study remedial program at bulk fuel storage depot1

Case Study - Remedial Program at Bulk Fuel Storage Depot

Innovative Techniques with emphasis on on-site treatment & ESD principles

  • Critical appraisal of site models

  • Treatment & re-use of contaminated soil & groundwater

  • Reduction in contaminant loading at off-site facilities

  • Re-use of other site wastes for restoration

NATO/CCMS June 2005 - T Hobbs


Redevelopment of former industrial lands in the australian capital territory

On-Site Treatment of Contaminants at the Kingston Site

NATO/CCMS June 2005 - T Hobbs


Redevelopment of former industrial lands in the australian capital territory

Lessons Learned

  • Use of a staged approach and the Site Audit Scheme for dealing with a larger site

  • Risk management and collaborative approaches adopted with excellent outcomes

  • Importance of regular and open communication

  • Social, environment and economic value added

NATO/CCMS June 2005 - T Hobbs


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