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1 gauge, at Brynkinalt Weir Chirk River Station. No storm overflow upstream is discharging now. Gauges in Wrexham; levels are checked every 15 minutes.
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| Station | Level now | Status |
|---|---|---|
| Brynkinalt Weir Chirk River Stationstructure | 0.52 m 17m ago | Within its typical range |
Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.
Contains OS data © Crown copyright and database rights 2026.
Streams and rivers with a gauge whose water joins the Ceiriog above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
No gauged tributary joins the Ceiriog above Brynkinalt Weir Chirk River Station on the river map. Streams without a gauge are not counted here.
Below Brynkinalt Weir Chirk River Station, its water next reaches Manley Hall River Station, a gauge on Dee, 8.9 km by river downstream.
Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.
6 storm overflows are traced upstream of Brynkinalt Weir Chirk River Station, the Ceiriog’s lowest gauge on the river map: on the Ceiriog itself, on its gauged tributaries, and on smaller streams that join above there.
Official annual figures for the overflows traced upstream of Brynkinalt Weir Chirk River Station, each return added up on its own. The Environment Agency’s return, 2025: 3 spills over 17 hours, from the 1 that has a figure. Welsh Water’s own return, 2025: 173 spills over 542 hours in total, across the 5 that have a figure. These are two separate returns, so the figures are given side by side, not added together.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Ceiriog includes the smaller streams that join it there.
Within 3 km of one of the Ceiriog’s gauges in a straight line, but the river map cannot say whether their water reaches it.
A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →
Live status: © Dŵr Cymru Welsh Water, from its Storm Overflow Map. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0. Annual figures for Wales: Dŵr Cymru Welsh Water’s return to Natural Resources Wales, as compiled by The Rivers Trust, Open Government Licence.
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