Appendix 5: PR19 proposed performance commitments Table 5.1: Common Performance Commitments 2019-20 to 2019-20 2024-25 2024-25 In period / ID (eg forecast proposed No. Common performance commitment ODI type end of period % change performance level performance ODI (leakage and PCC commitment (where relevant) PCs) 1 Water quality compliance the DWI’s PC01 1.27 0 Under In-period – Compliance Risk Index (CRI), a score greater than or equal to zero, where zero is least risk 2 Water supply interruptions average – PC02 12.2 1.8 Out & Under In-period supply interruption greater than 3 hours (minutes per property) 3 bursts number of water mains – PC03 142 133 Under In-period bursts per 1,000 kilometres of total length of mains 4 Unplanned outage proportion of – PC04 1.74 1.74 Under In-period unplanned outage of the total company production capacity (%) 5 megalitres per day (Ml/d), Leakage – PC18 43 36.5 Out & Under In-period -15% three-year average 6 Per capita consumption average PC19 142 135 Out & Under In-period -5% – amount of water used by each person that lives in a household property (litres per person per day), three-year average
Appendix 5: PR19 proposed performance commitments Table 5.1: Common Performance Commitments No. Common performance commitment ID (eg 2019-20 forecast performance level (where relevant) 2024-25 proposed performance commitment ODI type In period / end of period ODI 2019-20 to 2024-25 % change (leakage and PCC PCs) 1 Water quality compliance – the DWI’s Compliance Risk Index (CRI), a score greater than or equal to zero, where zero is least risk PC01 1.27 0 Under In-period 2 Water supply interruptions – average supply interruption greater than 3 hours (minutes per property) PC02 12.2 1.8 Out & Under In-period 3 bursts – number of water mains bursts per 1,000 kilometres of total length of mains PC03 142 133 Under In-period 4 Unplanned outage – proportion of unplanned outage of the total company production capacity (%) PC04 1.74 1.74 Under In-period 5 Leakage – megalitres per day (Ml/d), three-year average PC18 43 36.5 Out & Under In-period -15% 6 Per capita consumption – average amount of water used by each person that lives in a household property (litres per person per day), three-year average PC19 142 135 Out & Under In-period -5%