Monitored by the Drinking Water Inspectorate, this new measure is focused on maintaining the quality of your treated drinking water.
Monitored by the Drinking Water Inspectorate, this measure is focused on maintaining the quality of your treated drinking water.
Compliance Risk Index looks at the significance of the failure, where the failure happened on our water supply system and how many customers were impacted, the cause, how we investigated it and the mitigations put in place.
A score is assigned to each water quality exceedance based on the criteria outlined above and the annual position represents a summation of these individual scores . If our total score for the year is between 2.00 and 9.50 we will be required to pay an underperformance penalty. The penalty amount will depend on the score.
Unlike many other measures we report against, the lower the score the better.
How have we performed?
In 2023/2024 we scored 1.31. This marks a further improvement on last year’s excellent performance and a third year below the Ofwat dead-band of two for this measure, making us one of the industry leaders in this headline water quality measure.
We have continued to drive improvements in performance across all our assets through a combination of targeted investment and process optimisation. We have an ongoing programme of hazard review investigations at our key sites to identify further opportunities for improvement over the coming years.
We performed significantly better than the industry average of 4.9 and our continued excellent improved performance means we did not incur any financial penalty.
