WaterWatch monitors live sewage discharge events for every major water company in England. Each company has its own page showing current discharge status and site map.
WaterWatch displays data published by the water companies themselves via their Event Duration Monitoring (EDM) systems. This data has known limitations: sensors can malfunction, go offline, or report inaccurately. A site showing “not discharging” does not guarantee no discharge is occurring — it means the monitor has not reported one. This is especially relevant for companies where live monitoring only started recently. Do not rely solely on WaterWatch to make decisions about water contact activities. Always check official guidance from your local authority and the Environment Agency.
Full history available from 2020.
⚠ Yorkshire Water has not shared historical discharge records with WaterWatch. Live monitoring is active from April 2026.
⚠ Severn Trent has shared historical discharge records covering January 2021 – February 2026. Full import into WaterWatch is pending.
⚠ United Utilities has shared historical discharge records covering January 2025 – February 2026. Full import into WaterWatch is pending.
⚠ Northumbrian Water has shared historical discharge records covering 2020 – 2024. Full import is pending. We are looking into obtaining more recent data.
⚠ South West Water has shared historical discharge records covering January 2020 – February 2026. Full import into WaterWatch is pending.
⚠ Southern Water has not shared historical discharge records with WaterWatch. Live monitoring is active from April 2026.
⚠ Wessex Water has shared historical discharge records covering January 2025 – February 2026. Full import into WaterWatch is pending.
⚠ Anglian Water provides monthly summary data from October 2025 only — continuous start/stop episode records are not currently shared.
WaterWatch is an independent monitoring service and is not affiliated with any water company. Data is sourced from each company’s public Event Duration Monitoring (EDM) API and updated every 15 minutes. WaterWatch makes no guarantee of data accuracy or completeness. Historical data coverage varies by company — see individual company pages for details. For official information about water quality, contact your water company or visit the Environment Agency.