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Live levels from 1 monitoring station across Cornwall, updated every 15 minutes.
| Station | Level now | Status |
|---|---|---|
| Tideford | 0.05 m 31m 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 the Tiddy 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.
No gauged tributary joins the Tiddy above Tideford on the river map. Streams without a gauge are not counted here.
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.
1 storm overflow is traced upstream of Tideford, the Tiddy’s lowest gauge on the river map: on the Tiddy itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflow traced upstream of Tideford: 22 spills over 206 hours.
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 Tiddy includes the smaller streams that join it there.
Within 3 km of one of the Tiddy’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: © South West 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.
4 sampling points on the River Tiddy and the streams that join it above Tideford. 2 have a sample from the last 12 months; 3 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) |
|---|---|---|---|---|
| River Tiddy at Skelton's Wood | River Tiddy | 12 km | 15 Dec 2025 · 10 months ago | Oxygen 97.4%Temp 10.9 °CpH 6.96Ammonia 0.042 mg/l |
| River Tiddy at Lambest | River Tiddy | 7.4 km | 17 Dec 2024 · 22 months ago | Oxygen 97.8%Temp 10.5 °CpH 7.57Ammonia 0.013 mg/l |
| River Tiddy at Tilland Mill Bridge | River Tiddy | 4.0 km | Last sampled 31 Aug 2004, before the imported period | |
| River Tiddy at Tideford Bridge | River Tiddy | 0.1 km | 14 Aug 2026 · 55 days ago | Oxygen 107.5%Temp 19.9 °CpH 8.22Ammonia below 0.03 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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