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River Fal water levels

Live levels from 2 monitoring stations across Cornwall, updated every 15 minutes.

2stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
TrenowthGrampound Road0.18 m 35m agoNormal—
TregonyTregony0.22 m 35m agoLow—

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.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Fal 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 Fal above Tregony on the river map. Streams without a gauge are not counted here.

Where the Fal goes

No gauge below Tregony 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.

Storm overflows upstream

11 storm overflows are traced upstream of Tregony, the Fal’s lowest gauge on the river map: on the Fal itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 11 not discharging
  • 0 offline or silent: 0 monitor offline, 0 status unknown, 0 no live feed

Official figures for 2025, for the overflows traced upstream of Tregony: 628 spills over 5,220 hours in total, across all 11.

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 Fal includes the smaller streams that join it there.

Above Trenowth, the Fal’s highest gauge7 overflows
  • Indian Queens Pscso/EO Not discharging
    South West Water · into River Fal (S) · 9.9 km by river above Trenowth · 2025: 0 spills, 0 h
  • St Dennis Wastewater Treatment Work Not discharging
    South West Water · into River Fal · 9.8 km by river above Trenowth · 2025: 97 spills, 617 h
  • St Dennis Wastewater Treatment Work Not discharging
    South West Water · into River Fal · 9.8 km by river above Trenowth · 2025: 65 spills, 817 h
  • Goonmarris Pscso/EO Not discharging
    South West Water · into Gwindra Stream(S) · 6.1 km by river above Trenowth · 2025: 66 spills, 404 h · placed on the river by its position alone
  • Creekavose Pumping Station Not discharging
    South West Water · into River Fal · 3.2 km by river above Trenowth · 2025: 0 spills, 0 h
  • North Fal STW (St Stephens Coombe) Not discharging
    South West Water · into Gwindra Stream (S) · 500 m by river above Trenowth · 2025: 72 spills, 293 h · placed on the river by its position alone
  • North Fal STW (St Stephens Coombe) Not discharging
    South West Water · into Gwindra Stream (S) · 500 m by river above Trenowth · 2025: 59 spills, 928 h · placed on the river by its position alone
Between Trenowth and Tregony4 overflows
  • Grampound Road Pumping Station Not discharging
    South West Water · into River Fal · 6.3 km by river above Tregony · 2025: 132 spills, 1,932 h
  • Grampound Pumping Station Not discharging
    South West Water · into River Fal · 4.2 km by river above Tregony · 2025: 35 spills, 73 h
  • Grampound Playing Field CSO Not discharging
    South West Water · into River Fal · 4.2 km by river above Tregony · 2025: 48 spills, 67 h
  • Grampound Playing Field CSO Not discharging
    South West Water · into River Fal · 4.2 km by river above Tregony · 2025: 54 spills, 89 h

Near these gauges, connection not known

Within 3 km of one of the Fal’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Tregony Bridge Pumping Station Not discharging shellfish water
    South West Water · into River Fal · 40 m from Tregony in a straight line · too close to Tregony to say which side · 2025: 10 spills, 64 h
  • Gwindra Road CSO Not discharging
    South West Water · into Lappa Valley (S) · 2.8 km from Trenowth in a straight line · no mapped watercourse close enough to be sure · 2025: 11 spills, 4.7 h
  • Creakavose Park Pscso/EO Not discharging
    South West Water · into Un-Named Watercourse (S) · 2.8 km from Trenowth in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h

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.

Water samples

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.

27 sampling points on the River Fal and the streams that join it above Tregony, and below it. 8 have a sample from the last 12 months; 11 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.

Above Trenowth River Fal 22 points, 7 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
River Fal at Tregoss BridgeRiver Fal14 kmLast sampled 27 Nov 2014, before the imported period
Bodella Brook upstream of Trelavourunnamed stream10.0 kmLast sampled 26 Mar 2002, before the imported period
River Fal at Gaverigan BridgeRiver Fal10.0 km5 May 2026 · 5 months agoOxygen 93.6%Temp 12 °CpH 6.92Ammonia 0.036 mg/l
St Dennis Stream at Carsellaunnamed stream9.8 kmLast sampled 2 Apr 2019, before the imported period
River Fal below Trerice BridgeRiver Fal8.4 kmLast sampled 27 Nov 2014, before the imported period
River Fal below McLarensRiver Fal7.9 kmLast sampled 7 Jan 2020, before the imported period
Gwindra Stream at Goonabarnunnamed stream6.0 kmLast sampled 7 Jan 2020, before the imported period
River Fal at Kernick BridgeRiver Fal4.5 kmLast sampled 10 Mar 2020, before the imported period
River Fal below Melbur DryersRiver Fal4.5 kmLast sampled 12 Jan 2005, before the imported period
Coombe Stream downstream of Burngullowunnamed stream3.7 kmLast sampled 1 May 2014, before the imported period
Gwindra Stream at Gwindraunnamed stream3.4 km11 Dec 2025 · 10 months agoOxygen 98.5%Temp 10.8 °CpH 6.9Ammonia 0.099 mg/l
Carpalla Stream Prior to Gwindraunnamed stream3.1 kmLast sampled 1 Jul 2019, before the imported period
River Fal at Terras BridgeRiver Fal3.1 kmLast sampled 4 Apr 2017, before the imported period
Coombe Stream upstream of Coombe Aditunnamed stream2.8 km17 Sep 2026 · 21 days agoOxygen 95.7%Temp 14.4 °CpH 7.2Ammonia below 0.03 mg/l Mar 2024
Coombe Aditunnamed stream2.8 km17 Sep 2026 · 21 days ago
Coombe Stream downstream of Coombe Aditunnamed stream2.8 kmLast sampled 4 Mar 2016, before the imported period
Gwindra Stream upstream of Coombe Villageunnamed stream2.1 kmLast sampled 12 Mar 2020, before the imported period
Trelowth tributary of Fal at TrelionRiver Fal2.0 km26 Mar 2024 · 2.5 years agopH 6.81
Coombe Stream at Coombeunnamed stream1.9 km17 Sep 2026 · 21 days agoOxygen 100%Temp 14.6 °CpH 7.3Ammonia below 0.03 mg/l Mar 2024
Gwindra Stream at Coombe Farmunnamed stream1.4 kmLast sampled 7 Feb 2013, before the imported period
Gwindra Stream upstream of St Stephen sewage treatment worksunnamed stream0.6 km1 Mar 2024 · 2.6 years agoOxygen 99%Temp 8.7 °CpH 6.87Ammonia 0.069 mg/l
River Fal above Gwindra confluenceRiver Fal0.1 kmLast sampled 1 Jul 2019, before the imported period
Above Tregony River Fal 3 points, 2 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
Trenowth tributary of River FalRiver Fal6.8 kmLast sampled 2 Sep 2014, before the imported period
Treway tributary of River Falunnamed stream6.7 km17 Sep 2026 · 21 days agoOxygen 84.1%Temp 15.1 °CpH 7.3Conductivity 239 µS/cm
River Fal at Grampound BridgeRiver Fal4.2 km17 Sep 2026 · 21 days agoOxygen 98.2%Temp 15.3 °CpH 7.4Ammonia 0.062 mg/l Mar 2024
Below Tregony 2 points
Sampling pointWatercourse (map)Below the gaugeLast sampleLatest results (river water)
River Fal at Great Downs WoodRiver Fal0.8 km6 Mar 2026 · 7 months agoOxygen 97.2%Temp 9.9 °CpH 7.22Ammonia 0.023 mg/l
River Fal North of Ruan LanihorneRiver Fal3.4 km26 Mar 2024 · 2.5 years agopH 6.91

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.