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Live levels from 3 monitoring stations across Bedford, Cambridgeshire, updated every 15 minutes.
| Station | Level now | Status |
|---|---|---|
| Hail Weston | 0.02 mASD 1h ago | Low |
These gauges are filed under the Kym, but the river map places them on another watercourse, so they are not in the Kym’s order above.
| Riseleyon Riseley Brook | 0.37 mASD 1h ago | Normal | ||
| Its water joins the Kym above Hail Weston, 19.9 km by river. | ||||
| Covingtonon River Til | 0.09 mASD 1h ago | Low | ||
| Its water joins the Kym above Hail Weston, 17.8 km by river. | ||||
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 Kym above one of its gauges, from the source down. The river map knows where gauges are, not every stream, so a tributary without a gauge is not listed here.
Joins the Kym above Hail Weston, its highest gauge, no more than 17.8 km by river above Hail Weston.
| Covington | 0.09 mASD 1h ago | Low |
Its water passes every gauge on the Kym, from Hail Weston down.
Below Hail Weston, its water next reaches St Neots, a gauge on River Great Ouse, 6.1 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.
9 storm overflows are traced upstream of Hail Weston, the Kym’s lowest gauge on the river map: on the Kym itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Hail Weston: 200 spills over 2,276 hours in total, across all 9.
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 Kym includes the smaller streams that join it there.
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: © Anglian 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.
6 sampling points on the River Kym and the streams that join it above Hail Weston, and below it. 3 have a sample from the last 12 months; 4 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) |
|---|---|---|---|---|
| Riseley Brook Road Bridge Riseley upstream of sewage treatment works | Riseley Brook | 18 km | 6 Mar 2025 · 19 months ago | Oxygen 108.7%Temp 6.5 °CpH 8.3Ammonia below 0.03 mg/l |
| River Kym Stoneley Footbridge | River Kym | 10 km | 1 Sep 2026 · 37 days ago | Oxygen 88.9% Jun 2026Temp 16.3 °C Jun 2026pH 7.98 Jun 2026Ammonia below 0.03 mg/l Jun 2026 |
| River Kym Great Staughton | River Kym | 5.8 km | 1 Sep 2026 · 37 days ago | Oxygen 48.6%Temp 16.4 °CpH 7.46Ammonia 0.098 mg/l |
| River Kym B645 Great Staughton | River Kym | 3.5 km | Last sampled 4 Mar 2014, before the imported period |
| Sampling point | Watercourse (map) | Below the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Kym Footpath Bridge Ford End Hail Weston | River Kym | 1.8 km | Last sampled 14 Dec 2017, before the imported period | |
| River Kym Hail Weston Ford | River Kym | 3.0 km | 11 Sep 2026 · 27 days ago | Oxygen 25%Temp 15.3 °CpH 7.3Ammonia 0.12 mg/l |
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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