Ednam, Ednam SPS CSO
Storm overflow run by Scottish Water, discharging into Eden Water.
"Not discharging" means the company's monitor reports no discharge right now — not that the water is clean. The feed publishes status only; no discharge volume is measured.
Year by year
Scottish Water's published data for monitored overflows (number of overflow events; Scottish Water does not use the 12/24-hour count). 2026 is our own running count, the same way, from the live feed since 28 February (when we began keeping every discharge it reports) — so it can only be lower than the full year. The official figure is published next spring.
"No data" means the monitor was not working or not required to report that year — not zero. Scottish Water counts each overflow event; England and Wales count 12/24-hour "spills", so these numbers are not directly comparable with English or Welsh overflows.
Downstream of this overflow
Its water reaches 2 gauges next on the river map, on different channels: Norham (Tweed), 27.6 km along the river; Norham (River Tweed), 27.6 km along the river.
Water-sampling points downstream
The nearest Environment Agency sampling points the river map places below the gauges above. Points between this overflow and that gauge cannot be put in order with it on the map, so they are not listed.
- Tweed downstream of Norham
28 km along the river, below Norham · No sample published 1 Oct 2023 – 30 Sep 2026
A sample is dated: it is not the river now, and its results are on its own page. A sample taken after a discharge does not show that the discharge caused what was measured. Samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
A river gauge measures the level of the river; it does not measure this overflow's discharge, and a spill does not by itself explain a change there. Traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Contains OS data © Crown copyright and database rights 2026.
Discharges we have recorded
13 discharge periods since 21 Jun 2025. 11 of them come from Scottish Water's own event-duration-monitoring records (published by the company, Jun 2025 – Dec 2025); the live feed adds anything after that. The official annual count is the figure to quote.
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Wed 23 Sep 2026, 08:0020 min
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Sun 30 Aug 2026, 10:0545 min
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Sun 7 Dec 2025, 17:102 d 21 h
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Mon 1 Dec 2025, 20:1515 h 50 min
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Mon 24 Nov 2025, 19:207 h 20 min
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Fri 14 Nov 2025, 09:005 min
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Thu 13 Nov 2025, 04:501 d 3 h
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Sun 14 Sep 2025, 22:3035 min
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Wed 10 Sep 2025, 21:5530 min
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Mon 21 Jul 2025, 20:2515 min
Show 3 earlier
| Started (UK time) | Ended | Discharge time |
|---|---|---|
| 19 Jul 2025, 17:35 | 18:20 | 45 min |
| 2 Jul 2025, 13:10 | 16:40 | 3 h 20 min |
| 21 Jun 2025, 23:40 | 01:55 | 2 h 15 min |
The year figures above use the EA's 12/24-hour counting method, so they are comparable with the official figures; the monitor log's 14 raw blocks were merged into 13 continuous discharge periods (gaps under 15 min joined).
Rain nearby last 30 days
Nearest live rain gauge: Ormiston Mill, 9.9 km away. Brown shading = when this overflow was discharging; ▼ = a discharge start.
Overflow shading is a timing match, not proof of cause — heavy rain and spills share a trigger. Times come from the water company’s event-duration monitor (site status only; no discharge volume is published).
Where it is
Concerned about this overflow?
Report pollution you can see or smell to the regulator straight away; the company handles complaints about the overflow itself.
Live status: © Scottish Water, near-real-time Overflow Map data, open licence for reuse. EDM monitors indicate overflows; they do not confirm them, and this is not advice on water quality. Spill-event history and annual figures: Scottish Water overflow event data, Open Government Licence. Times are shown in UK local time. FloodRadar republishes the monitor's status; it does not measure discharges itself.