Crosshands WwTW Storm Overflow
Storm overflow run by Dwr Cymru Welsh Water, discharging into River Gwili.
"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
The Environment Agency's official annual returns, counted the EA's way (12/24-hour spills). 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.
A spill is the EA's 12/24-hour count: the first 12 hours of a discharge count as one, each further 24 hours with discharge as one more. "Monitor" is the share of that year the monitor was working, so a 0 beside a working monitor is a real zero; "no data" means the monitor produced no usable data that year — not zero. Years before 2024 are matched to this site by name and location, because the EA's site IDs changed that year; a monitor figure beside one of them means the outlet's permit confirms the match.
Discharges we have recorded
1,972 discharge periods since 1 Jan 2022, 1 still open. 1,970 of them come from Dwr Cymru Welsh Water's own event-duration-monitoring records (published by the company, Jan 2022 – 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, 01:56ongoing
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Fri 18 Sep 2026, 20:573 d 12 h
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Sat 20 Dec 2025, 03:1515 min
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Wed 17 Dec 2025, 12:002 d 14 h
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Sun 14 Dec 2025, 16:452 d 5 h
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Fri 12 Dec 2025, 02:4518 h 0 min
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Wed 10 Dec 2025, 21:1515 min
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Fri 5 Dec 2025, 05:155 d 15 h
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Sun 30 Nov 2025, 20:154 d 3 h
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Sun 30 Nov 2025, 17:1515 min
Show 30 earlier (of 1,972)
| Started (UK time) | Ended | Discharge time |
|---|---|---|
| 26 Nov 2025, 18:00 | 16:45 | 3 d 22 h |
| 24 Nov 2025, 20:30 | 21:30 | 1 h 0 min |
| 24 Nov 2025, 16:45 | 18:30 | 1 h 45 min |
| 24 Nov 2025, 13:30 | 15:30 | 2 h 0 min |
| 24 Nov 2025, 04:30 | 12:30 | 7 h 45 min |
| 24 Nov 2025, 02:00 | 03:45 | 1 h 45 min |
| 23 Nov 2025, 23:45 | 00:15 | 30 min |
| 23 Nov 2025, 20:00 | 21:30 | 1 h 30 min |
| 23 Nov 2025, 16:45 | 18:30 | 1 h 45 min |
| 23 Nov 2025, 13:30 | 15:30 | 2 h 0 min |
| 23 Nov 2025, 10:30 | 12:30 | 2 h 0 min |
| 22 Nov 2025, 06:15 | 09:30 | 1 d 2 h |
| 10 Nov 2025, 08:45 | 23:00 | 5 d 14 h |
| 9 Nov 2025, 14:00 | 08:00 | 18 h 0 min |
| 3 Nov 2025, 03:30 | 00:30 | 3 d 20 h |
| 30 Oct 2025, 22:45 | 21:45 | 2 d 22 h |
| 29 Oct 2025, 01:15 | 21:15 | 19 h 45 min |
| 26 Oct 2025, 22:00 | 23:45 | 1 h 45 min |
| 26 Oct 2025, 18:30 | 20:45 | 2 h 15 min |
| 26 Oct 2025, 16:00 | 17:45 | 1 h 45 min |
| 26 Oct 2025, 10:30 | 11:30 | 1 h 0 min |
| 26 Oct 2025, 07:30 | 08:45 | 1 h 15 min |
| 26 Oct 2025, 03:45 | 05:45 | 2 h 0 min |
| 26 Oct 2025, 01:45 | 02:45 | 2 h 0 min |
| 25 Oct 2025, 23:30 | 00:45 | 1 h 15 min |
| 25 Oct 2025, 20:30 | 21:30 | 1 h 0 min |
| 25 Oct 2025, 16:45 | 18:30 | 1 h 45 min |
| 25 Oct 2025, 13:45 | 15:30 | 1 h 45 min |
| 24 Oct 2025, 22:45 | 00:30 | 1 h 45 min |
| 24 Oct 2025, 19:45 | 21:30 | 1 h 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 3,919 raw blocks were merged into 1,972 continuous discharge periods (gaps under 15 min joined).
Rain nearby last 30 days
Nearest live rain gauge: Gorslas Raingauge, 2.4 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: © Dŵr Cymru Welsh Water, from its Storm Overflow Map. Spill-event history: © Dŵr Cymru Welsh Water's published EDM start/stop records. Annual figures: The Rivers Trust EDM compilation, © Dŵr Cymru/Welsh Water, Open Government Licence. Times are shown in UK local time. FloodRadar republishes the monitor's status; it does not measure discharges itself.