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Live levels from 2 monitoring stations across Bath and North East Somerset, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Welton | -0.06 mASD 46m ago | Low | ||
| 11.2 km by river | ||||
| Wellow | 0.32 mASD 46m ago | Low | ||
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 Wellow Brook 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 Wellow Brook above Wellow on the river map. Streams without a gauge are not counted here.
Below Wellow, its water next reaches Midford, a gauge on Midford Brook, 6.2 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.
17 storm overflows are traced upstream of Wellow, Wellow Brook’s lowest gauge on the river map: on Wellow Brook itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Wellow: 278 spills over 1,105 hours in total, across all 17.
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 Wellow Brook includes the smaller streams that join it there.
Within 3 km of one of Wellow Brook’s gauges in a straight line, but the river map cannot say whether their water reaches it.
2 other overflows within 3 km of these gauges are placed below Wellow Brook’s lowest gauge or on another river, so not listed.
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: © Wessex Water 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.
11 sampling points on the Wellow Brook and the streams that join it above Wellow, and below it. 3 have a sample from the last 12 months; 5 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Wellow White Bridge | Wellow Brook | 3.3 km | Last sampled 17 Feb 2017, before the imported period |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Snails Brook Stratton-on-the-Fosse | unnamed stream | 14 km | 1 Apr 2026 · 6 months ago | Oxygen 97.1%Temp 11.5 °CpH 8.14Ammonia 0.036 mg/l |
| Snails Brook near B3139 | unnamed stream | 11 km | Last sampled 3 Mar 2023, before the imported period | |
| Somer upstream confluence | River Somer | 9.7 km | 8 Mar 2024 · 2.6 years ago | Oxygen 101%Temp 8.9 °CpH 8.32Ammonia 0.039 mg/l |
| Snails Brook Radstock | Waterside | 8.4 km | Last sampled 4 Jul 2004, before the imported period | |
| Wellow Writhlington | Wellow Brook | 6.4 km | 2 Jul 2026 · 3 months ago | pH 7.92 |
| Wellow Brook Single Hill | Wellow Brook | 3.9 km | Last sampled 22 Apr 2010, before the imported period | |
| Wellow Stoney Littleton | Wellow Brook | 2.7 km | Last sampled 16 Jun 2004, before the imported period | |
| Wellow Brook at Stoney Littleton | Wellow Brook | 1.7 km | 7 Sep 2026 · 31 days ago | Oxygen 85.4%Temp 16.8 °CpH 8.04Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Below the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Wellow Brook Gauging Station | Wellow Brook | 0.1 km | 8 Mar 2024 · 2.6 years ago | Oxygen 97.7%Temp 8.5 °CpH 8.13Ammonia 0.068 mg/l |
| Wellow Brook downstream Wellow sewage treatment works | Wellow Brook | 1.4 km | Last sampled 17 May 2017, before the imported period |
Distances are along the river to the gauge named. England's samples only.
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.
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