Yorkshire Water sewage spills into the River Derwent SSSI in Malton, Norton, and Old Malton in the years 2019, 2020, 2021, 2022, 2023 and 2024.
2024 sewage spill data published by the EA on 27 March 2025.
NB: This does not include the sewage pumped (by up to 20 mobile pumps) into the River Derwent SSSI via the operation of the Malton and Norton Pumping Plan.
Yorkshire Water sewage ‘spill’ data for 2019, 2020, 2021, 2022, 2023
Yorkshire Water Live Storm Overflow Map
Environment Agency EDM Records (Links to individual years)
Malton, Norton and Old Malton Pumping Plan and the Arup report