Fluid Filled Cable Incident Management in WPD Andy Martyr-Icke WPD - - PowerPoint PPT Presentation

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fluid filled cable incident management in wpd
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Fluid Filled Cable Incident Management in WPD Andy Martyr-Icke WPD - - PowerPoint PPT Presentation

Nov 11, 2022 202 likes •391 views

Fluid Filled Cable Incident Management in WPD Andy Martyr-Icke WPD Environment Team & Nathan Male Adler & Allan Fluid filled (oil) cable leaks - WPD Total Total leak (litres) 75% RIIO-ED1 Reduction Target 2012/13 2013/14 2014/15

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Fluid Filled Cable Incident Management in WPD

Andy Martyr-Icke WPD Environment Team & Nathan Male Adler & Allan

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2012/13 2013/14 2014/15 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24

Fluid filled (oil) cable leaks - WPD Total

Total leak (litres) 75% RIIO-ED1 Reduction Target

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In Introduction troduction

– Principles underlying risk based approach – Route patrols and preliminary risk assessment – Ground Investigation and detailed risk assessment – Remedial Options Appraisal – Remediation Techniques

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Principles of Risk Based Approach

Mass s Balance lance Conce nceptua ptual l Site e Model del

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Phased Investigation - 1

  • Route Patrols

– Desk Study and preliminary CSM – Patrol route – Sampling – Reporting

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Phased Investigation - 2

  • Preliminary Risk

Assessment

– Site visit and sample analysis during repair – Understand ‘Source – Pathway – Receptor’ linkages – Report to regulator

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Phased Investigation - 3

  • Ground Investigation

and Detailed Risk Assessment

– Testing, measuring, monitoring – Updating the CSM – Quantitative risk assessment and remedial target generation – Report to regulator

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Remedial Options Appraisal - 1

  • Fifteen techniques routinely considered
  • Civil Engineering methods
  • Physical methods
  • Chemical methods
  • Biological methods
  • Thermal and S/S methods
  • Identify feasible options
  • Carry out detailed evaluation
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Remedial Options Appraisal - 2

  • Assessment Criteria

– Effectiveness – Operational issues – Track record – Permissions – H&S risk – Durability – Cost

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Commonly Used Remediation Techniques

Free ee Produc

  • duct

t Recover covery In In-gr groun

  • und

d Barr rrie iers rs

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Remediation – Other Techniques

  • Soil Flushing
  • Chemical

Oxidation

  • In-situ/Ex-situ

Bioremediation

  • Monitored Natural

Attenuation

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Summary

  • Risk based approach based on mass

recovered and CSM

  • Phased investigation leading to

detailed CSM and risk based remedial targets

  • Phased options appraisal
  • Implementation of selected option(s)
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