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Live levels from 7 monitoring stations across Buckinghamshire, Oxfordshire, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Rowsham Bridge | 0.08 mASD 32m ago | Normal | ||
| 11.3 km by river | ||||
| Aylesbury Thame | 0.75 mASD 47m ago | Normal | ||
| downstream, distance by river not measured | ||||
| Cuddington | 1.07 mASD 32m ago | Normal | ||
| 7.3 km by river | ||||
| Thame Bridge | 1.03 mASD 1h ago | Low | ||
| 17.0 km by river | ||||
| Wheatley | 3.89 mASD 47m ago | Normal | ||
| 11.6 km by river | ||||
| Stadhampton | 0.71 mASD 32m ago | Normal | ||
| 7.7 km by river | ||||
| Dorchester | 0.28 mASD 32m 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 Thame above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Joins the Thame between Wheatley and Stadhampton, no more than 8.4 km by river above Stadhampton.
| Chalgrovestructure | 1.05 mASD 32m ago | Normal |
Its water passes Stadhampton and every gauge below it on the Thame. It does not pass Wheatley or the gauges above it.
Below Dorchester, its water next reaches Benson Lock, a gauge on River Thames, 6.0 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.
8 storm overflows are traced upstream of Dorchester, the Thame’s lowest gauge on the river map: on the Thame itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Dorchester: 169 spills over 1,872 hours in total, across all 8.
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 Thame includes the smaller streams that join it there.
Within 3 km of one of the Thame’s gauges in a straight line, but the river map cannot say whether their water reaches it.
1 other overflow within 3 km of these gauges is placed below the Thame’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: © Thames 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.
28 sampling points on the River Thame and the streams that join it above Dorchester. 15 have a sample from the last 12 months; 16 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) |
|---|---|---|---|---|
| Scotsgrove Brook downstream of Marsh | Scotsgrove Brook | 15 km | 2 Sep 2026 · 36 days ago | Oxygen 79% Feb 2026Temp 8.1 °C Feb 2026pH 7.7 Feb 2026Ammonia 0.077 mg/l Feb 2026 |
| Dorton Brook above Chearsley Brook, Dorton | Dorton Brook | 12 km | Last sampled 12 Jun 2007, before the imported period | |
| Thame at Cuddington Bridge | River Thame | 7.3 km | 3 Sep 2026 · 35 days ago | Oxygen 47.4%Temp 18.3 °CpH 7.5Ammonia below 0.03 mg/l |
| Scotsgrove Brook above Haddenham sewage treatment works | Scotsgrove Brook | 6.1 km | 3 Sep 2026 · 35 days ago | Oxygen 64%Temp 17.1 °CpH 7.77Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Thame at Thame Bridge | River Thame | 17 km | Last sampled 21 May 2015, before the imported period | |
| Bennetts Ditch at A418 Roadbridge | unnamed stream | 11 km | Last sampled 1 Mar 2017, before the imported period | |
| Upstream of Meads Farm Track | Oakley Brook | 11 km | 10 Dec 2025 · 10 months ago | Oxygen 93.9%Temp 9.4 °CpH 8.1Ammonia below 0.03 mg/l |
| Danes Brook above Holton Brook | Danes Brook | 8.7 km | Last sampled 20 Dec 2004, before the imported period | |
| Tiddington Brook above Thame, Tiddington | unnamed stream | 8.5 km | Last sampled 14 Jan 2020, before the imported period | |
| Peppershill Brook above Thame | Peppershill Brook | 8.5 km | 3 Sep 2026 · 35 days ago | Oxygen 45% Apr 2026Temp 9.4 °C Apr 2026pH 7.62 Apr 2026Ammonia below 0.03 mg/l Apr 2026 |
| Worminghall Brook at Ickford Road, Worminghall | Worminghall Brook | 8.5 km | 3 Sep 2026 · 35 days ago | Oxygen 59.6%Temp 17.4 °CpH 7.42Ammonia below 0.03 mg/l |
| Holton Brook above River Thame | Holton Brook | 1.7 km | 4 Sep 2026 · 34 days ago | Oxygen 75.6%Temp 17.3 °CpH 7.87Ammonia below 0.03 mg/l |
| Thame at Wheatley Bridge | River Thame | 0.2 km | 15 May 2026 · 5 months ago | Oxygen 92.7%Temp 11.2 °CpH 8.11Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Lewknor Brook at Roadbridge, near Pyrton | unnamed stream | 5.1 km | 3 Sep 2026 · 35 days ago | Oxygen 85.7%Temp 18 °CpH 8.14Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Latchford Brook at Latchford | Latchford Brook | 13 km | 2 Sep 2026 · 36 days ago | Oxygen 77.8%Temp 15.7 °CpH 7.83Ammonia below 0.03 mg/l |
| Milton Ditch at Great Milton | unnamed stream | 12 km | Last sampled 20 Mar 2017, before the imported period | |
| Milton Ditch at Great Milton Road, Wheatley | unnamed stream | 11 km | Last sampled 7 Mar 2017, before the imported period | |
| Haseley Brook above Warsgrove Ditch | Haseley Brook | 10 km | 2 Sep 2026 · 36 days ago | Oxygen 79.4%Temp 15.5 °CpH 7.86Ammonia below 0.03 mg/l |
| Denton Brook at Denton | unnamed stream | 6.9 km | Last sampled 19 Jul 2004, before the imported period | |
| Gainsbridge Brook at Little Milton | Gainsbridge Brook | 6.1 km | Last sampled 24 Mar 2017, before the imported period | |
| Haseley Brook above River Thame | Haseley Brook | 5.9 km | 3 Sep 2026 · 35 days ago | Oxygen 72.7%Temp 16.9 °CpH 7.75Ammonia below 0.03 mg/l |
| Baldon Brook above River Thame | Baldon Brook | 3.4 km | 19 Aug 2026 · 50 days ago | Oxygen 65.5% Jun 2026Temp 20.9 °C Jun 2026pH 7.9 Jun 2026Ammonia 0.072 mg/l Jun 2026 |
| Chalgrove Brook at Chiselhampton Bridge, Chiselhampton | Chalgrove Brook | 2.0 km | Last sampled 8 Mar 2017, before the imported period |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Opposite Newington House | River Thame | 6.1 km | 7 Dec 2023 · 2.8 years ago | Oxygen 79.9%Temp 5.5 °CpH 7.84Ammonia 0.066 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Creslow Brook above Hardwick Brook | Creslow Brook | 13 km | Last sampled 3 Aug 2004, before the imported period | |
| Hardwick Brook at Hardwick | Hardwick Brook | 7.1 km | 21 Sep 2026 · 17 days ago | Oxygen 62.4%Temp 12.9 °CpH 7.52Ammonia 0.048 mg/l |
| Upstream of Hardwick Brook | River Thame | 1.9 km | Last sampled 1 Dec 2022, before the imported period | |
| Thame at Stone Bridge, Aylesbury | River Thame | 1.0 km | 18 Aug 2026 · 51 days ago | Oxygen 50%Temp 18 °CpH 7.5Ammonia 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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