Poplar Road Rhydyfelin Overflow

Storm overflow run by Dwr Cymru Welsh Water, discharging into River Taff.

Emergency Overflow
Right now
Not discharging
Last discharge ended on (262 days ago).
Times are UK time. Company feed updated 4 min ago

"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.

2026 so far
1spill
0.4 h discharging on 1 day · live feed since 23 Sep, not yet official
2025 official
0spills
0 h · −100% on 2024
Rank in Dwr Cymru Welsh Water
—
No ranking for this overflow.
Monitor in 2025
100% working
Share of the year the monitor reported

Year by year

Dŵr Cymru Welsh Water's annual Event Duration Monitoring return to Natural Resources Wales (12/24-hour spill count), as compiled by The Rivers Trust. 2026 is our own running count, the same way, from the live feed since 23 September (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.

2022
0 spills · 0 hmonitor 100%
2023
3 spills · 1.0 hmonitor 100%
2024
1 spill · 0.8 hmonitor 99.5%
2025
0 spills · 0 hmonitor 100%
2026since 23 Sep
1 spill · 0.4 h

"No data" means the monitor was not working or not required to report that year — not zero.

Discharges we have recorded

9 discharge periods since 29 Mar 2021. 8 of them come from Dwr Cymru Welsh Water's own event-duration-monitoring records (published by the company, Mar 2021 – Aug 2024); the live feed adds anything after that. The official annual count is the figure to quote.

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 10 raw blocks were merged into 9 continuous discharge periods (gaps under 15 min joined).

What the feed showed

FloodRadar's own record of every change of state Dwr Cymru Welsh Water's live feed has shown for this overflow, kept since : 1 state. The feed publishes its status now and its latest discharge, nothing older; the discharges above are read from this. It is here so the figures can be checked.

Show the last 1 states
SeenStatusSinceLatest discharge
Not discharging →

Rain nearby last 30 days

Nearest live rain gauge: Rhiwsaeson STW Raingauge, 5.8 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

Nearest river gauge
Upper Boat River Station (Taff) · 1.5 km
Nearest rain gauge
Site reference
DCWW1426
Coordinates
51.58333, -3.30664

Tell me when this overflow discharges

One message when the company's monitor reports a new discharge here. At most one every 6 hours.

Setting this alert needs JavaScript. The alerts you already have are on your alerts page.

The alert repeats the monitor's status: whether the overflow is discharging, not how much or why. It can only tell you about a discharge that starts after you turn it on.

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.