FloodRadar
Log inCreate free account
Live levels from 4 monitoring stations across Cheshire East, Greater Manchester, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Old Mill Lane | 0.14 m 1h ago | Normal | ||
| 5.7 km by river | ||||
| Prestbury | 0.31 m 1h ago | Normal | ||
| 10.1 km by river | ||||
| Wilmslow | 0.18 m 1h ago | Normal | ||
| 21.9 km by river | ||||
| Bollington Mill | 0.31 m 1h ago | Normal | ||
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 Bollin above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Joins the Bollin between Wilmslow and Bollington Mill, no more than 21.7 km by river above Bollington Mill.
| Stanneylands | 0.11 m 1h ago | Normal |
Its water passes Bollington Mill and every gauge below it on the Bollin. It does not pass Wilmslow or the gauges above it.
No gauge below Bollington Mill is known on the river map.
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.
41 storm overflows are traced upstream of Bollington Mill, the Bollin’s lowest gauge on the river map: on the Bollin itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Bollington Mill: 1,465 spills over 7,836 hours in total, across all 41.
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 Bollin includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
and 4 more: show all 7 overflows on this stretch → All above Prestbury, nearest first →
and 20 more: show all 23 overflows on this stretch → All above Bollington Mill, nearest first →
and 6 more: show all 9 overflows on this stretch → All above Stanneylands, nearest first →
Within 3 km of one of the Bollin’s gauges in a straight line, but the river map cannot say whether their water reaches it.
2 more near these gauges whose connection is not known.
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: © United Utilities storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.
Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.
63 sampling points on the River Bollin and the streams that join it above Bollington Mill, and below it. 14 have a sample from the last 12 months; 19 have any sample banked.
Sampled most recently, anywhere on the Bollin and its streams:
| Where, from the source down | Sampling points | Newest sample |
|---|---|---|
| Above Old Mill Lane | 7 points2 sampled | 23 Apr 2026 |
| Above Prestbury | 3 points1 sampled | 17 Dec 2025 |
| Above Wilmslow | 3 points1 sampled | 1 Apr 2026 |
| Above StanneylandsDean · joins the Bollin above Bollington Mill | 14 points1 sampled | 1 Apr 2026 |
| Above Bollington Mill | 33 points13 sampled | 14 Sep 2026 |
| Below the lowest gauge | 3 points1 sampled | 17 Aug 2026 |
England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.
FloodRadar helper · beta