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North Bristol Sewer Scheme – Trym Catchment & Frome Valley

North Bristol Sewer - Trym tunnel

North Bristol Sewer - Frome Valley

North Bristol Sewer - Trym tunnel - This is a measure required by Ofwat in the final determination to ensure timely delivery of the Trym tunnel. 

If we miss the initial milestones due in 2017-18 we refund customers £0.97m per year. There is a more severe under-performance payment associated with not undertaking the scheme of £14.1m - there is no risk of incurring this as the scheme is underway. 

In 2017-18 we reached the initial milestone by demonstrating, in line with our delivery plan, that the design, consultation and construction of the Trym scheme has been progressed. There is no target for us to meet in 2018-19 but we are on schedule for delivery of the scheme in March 2023.

North Bristol Sewer - Frome Valley - This is a measure required by Ofwat in the final determination to ensure timely delivery of the Frome Valley relief sewer. 

If the delivery is delayed beyond 2019-20 we will refund customers £1.86m per year. There is a more severe under-performance payment associated with not undertaking the scheme of £24.9m - there is no risk of incurring this as the scheme is underway. 

We completed delivery of the North Bristol Sewer - Frome Valley scheme in 2018-19, meeting our performance commitment for the 2015-20 period.