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Live levels from 2 monitoring stations across Devon, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Harford | 0.31 m 46m ago | Normal | ||
| 8.7 km by river | ||||
| Ermington | 0.21 m 31m 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 Erme 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 Erme above Ermington on the river map. Streams without a gauge are not counted here.
No gauge below Ermington 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.
3 storm overflows are traced upstream of Ermington, the Erme’s lowest gauge on the river map: on the Erme itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Ermington: 121 spills over 1,848 hours in total, across all 3.
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 Erme includes the smaller streams that join it there.
5 other overflows within 3 km of these gauges are placed below the Erme’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: © 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.
12 sampling points on the River Erme and the streams that join it above Ermington, and below it. 2 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) |
|---|---|---|---|---|
| River Erme at Lower Piles | River Erme | 0.8 km | 3 Dec 2025 · 10 months ago | Oxygen 100.3%Temp 7.6 °CpH 5.56Ammonia below 0.002 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Erme at Stowford Weir | River Erme | 5.1 km | Last sampled 7 Dec 2018, before the imported period | |
| B3213 near Endsleigh Garden Centre | unnamed stream | 3.8 km | Last sampled 8 Dec 2009, before the imported period | |
| River Erme at A38 Bridge upstream of Ivybridge sewage treatment works | River Erme | 3.5 km | 12 Mar 2025 · 19 months ago | Oxygen 101.5%Temp 7.3 °CpH 7.23Ammonia below 0.03 mg/l |
| River Erme upstream of Ivybridge sewage treatment works | River Erme | 3.2 km | Last sampled 8 Jul 2002, before the imported period | |
| River Erme downstream of Ivybridge sewage treatment works | River Erme | 3.1 km | 12 Mar 2025 · 19 months ago | Oxygen 101.3%Temp 8 °CpH 7.19Ammonia below 0.03 mg/l |
| Downstream of Yeolands | River Erme | 1.9 km | Last sampled 8 Dec 2009, before the imported period | |
| Tributary upstream of Keaton Bridge | unnamed stream | 1.8 km | Last sampled 8 Dec 2009, before the imported period | |
| River Erme at Lower Keaton | River Erme | 1.6 km | Last sampled 12 Oct 2017, before the imported period | |
| Downstream of Ermington Workshops | River Erme | 0.1 km | Last sampled 8 Dec 2009, before the imported period |
| Sampling point | Watercourse (map) | Below the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Erme at Fawns Bridge | River Erme | 0.2 km | Last sampled 13 Mar 2018, before the imported period | |
| River Erme at Sequers Bridge | River Erme | 1.9 km | 20 Sep 2026 · 18 days ago | Oxygen 104.6% Aug 2026Temp 18.5 °C Aug 2026pH 8.16 Aug 2026Ammonia 0.034 mg/l Aug 2026 |
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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