The scope of this project includes:

• Review of cast iron fitness for purpose (FFP) assessment methods

   

• Review MRPS risk screening inputs

   

• Assess historical cast iron pipe failure data

   

• Review the remediation techniques under consideration by the participants

   

• Review of cast iron inspection techniques

   

• Statistical reliability of local inspection data

   

• Source data on typical pipe loading conditions

   

• Consideration regarding potential algorithms to be used in the FFP assessment

   

• Consideration regarding the balance of weighting that should be given to the FFP calculations versus the historical performance data for the asset

   

• Outline decision support methodology

Benefits

Success of the project would be:

• Evidence of national and global work on CI test assessments. Contact with suitable broad range of stakeholders and review of scientific papers

   

• Substantive and reliable data has been sourced on CI failure data. Learning adds value in addition to pipe risk score and that the output feeds into the pass/fail criteria methodology

   

• Commercially available and cost effective CI inspection techniques have been identified. A suitable range of techniques that enables pipes of greater or lesser risk score or other risk factors can be assessed. Ideally 3 or 4 techniques are or could be developed to be applied to pipes of differing initial levels of risk score

   

• Technically acceptable, cost effective and practical decision support methodologies have been identified. That GDNs reach consensus on approach and external stakeholders sign on (HSE).