Scottish Water Non-Reported Overflow Event Data 2022 - 2025 & Summary Version 1 published 11/05/26

• Published by: Scottish Water
• Last updated: 14 May 2026
• Topic: Government
• Licence: Open Government Licence

Summary

Scottish Water (SW) non-reported overflow event data for overflows that are not reported to SEPA as part of the annual regulatory return.

The data file provided contains overflow event data for 2022 - 2025 for overflows that are known to have licence requirements for permanent event duration monitoring or have monitoring but do not require reporting to SEPA as part of the annual regulatory return. This includes the overflow asset, measurement point and licence information as well as the start/stop time (dd/mm/yyyy hh:mm:ss) and duration ([h]:mm:ss] for each discrete overflow event greater than 15 minutes 30 seconds.

The data file also contains a summary overflow event data at a measurement point level. This includes: Total number and Total duration of overflow events for each year and additional information such as Type of Overflow, Asset Postcode, Local Authority Area, X&Y (Easting & Northings) co-ordinates and Discharge Receiving Water.

To enhance traceability, a Version History tab has been added to the data, allowing for high-level tracking of changes along with a summary of the reasons for those changes.

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Data links

Link to the data	Format	File added	Data preview
Scottish Water Non-Reported Overflow Event Data 2022 - 2025 & Summary Version 1 published 11/05/26	XLSX	01 April 2025	Not available

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