Port Ellen SPS No1 CSO
Storm overflow run by Scottish Water, discharging into Loch Leodamis.
"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.
Twin outlet
Scottish Water runs another overflow within 300 m that also discharges into Loch Leodamis. They share the sewer and the storm, so one outlet's figures are only part of what reaches the water.
This overflow: 48 spills in 2025. Distances are between the published outlet points.
Discharges we have recorded
35 discharge periods since 22 Jun 2025. 32 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 30 Sep 2026, 03:355 h 15 min
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Tue 28 Jul 2026, 17:2525 min
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Sat 30 May 2026, 22:3520 min
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Wed 17 Dec 2025, 16:5525 min
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Sun 14 Dec 2025, 10:401 h 10 min
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Wed 10 Dec 2025, 12:005 min
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Tue 9 Dec 2025, 08:002 h 15 min
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Mon 8 Dec 2025, 05:1045 min
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Sun 7 Dec 2025, 13:155 h 20 min
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Thu 4 Dec 2025, 08:5510 min
Show 25 earlier
| Started (UK time) | Ended | Discharge time |
|---|---|---|
| 4 Dec 2025, 05:40 | 08:00 | 2 h 10 min |
| 4 Dec 2025, 00:25 | 01:15 | 50 min |
| 3 Dec 2025, 00:45 | 03:15 | 2 h 30 min |
| 2 Dec 2025, 20:00 | 20:45 | 45 min |
| 2 Dec 2025, 14:15 | 14:20 | 5 min |
| 2 Dec 2025, 07:10 | 08:00 | 50 min |
| 2 Dec 2025, 00:30 | 02:40 | 2 h 10 min |
| 1 Dec 2025, 15:00 | 15:40 | 40 min |
| 3 Nov 2025, 18:20 | 18:25 | 5 min |
| 1 Nov 2025, 07:20 | 07:30 | 10 min |
| 1 Nov 2025, 02:55 | 06:50 | 3 h 55 min |
| 31 Oct 2025, 08:15 | 08:40 | 25 min |
| 31 Oct 2025, 05:50 | 06:45 | 55 min |
| 31 Oct 2025, 00:30 | 02:50 | 2 h 20 min |
| 30 Oct 2025, 21:05 | 22:40 | 1 h 35 min |
| 3 Oct 2025, 18:40 | 18:55 | 10 min |
| 3 Oct 2025, 12:15 | 18:00 | 5 h 45 min |
| 3 Oct 2025, 02:05 | 02:35 | 25 min |
| 2 Oct 2025, 10:20 | 23:55 | 13 h 5 min |
| 11 Sep 2025, 03:45 | 04:00 | 15 min |
| 4 Sep 2025, 05:40 | 05:55 | 15 min |
| 14 Jul 2025, 04:20 | 04:55 | 35 min |
| 30 Jun 2025, 19:10 | 20:00 | 40 min |
| 30 Jun 2025, 18:05 | 18:40 | 35 min |
| 22 Jun 2025, 01:45 | 02:30 | 45 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 51 raw blocks were merged into 35 continuous discharge periods (gaps under 15 min joined).
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.