River Tavy at Denham Bridge
EA name: RIVER TAVY AT DENHAM BRIDGE
Environment Agency sampling point SW-81231133 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 13 Aug 2026, 12:3749 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 16 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (UK govt policy - not GQA or RE)
- Where
- National Grid 247699, 67856As published, to the nearest 1 m. Open in a map
- River, by its own name
- Tavy
- River, by the map
- River TavyPlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Ludbrook On the River Tavy · 0.3 km along the river
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (23 samples)
Monitoring (national agency policy) (11 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.9%
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 102.9 | 102.9% |
| 17 Jul 2026, 15:41 | 105.4 | 105.4% |
| 15 Jun 2026, 11:27 | 102.1 | 102.1% |
| 12 May 2026, 12:15 | 105.5 | 105.5% |
| 22 Apr 2026, 12:52 | 110.7 | 110.7% |
| 24 Mar 2026, 14:34 | 101 | 101% |
| 18 Feb 2026, 14:01 | 101.7 | 101.7% |
| 27 Jan 2026, 10:05 | 100.8 | 100.8% |
| 18 Dec 2025, 11:51 | 101.5 | 101.5% |
| 12 Nov 2025, 12:58 | 100 | 100% |
| 1 Oct 2025, 09:54 | 97.4 | 97.4% |
| 4 Sep 2025, 11:22 | 101.2 | 101.2% |
| 12 Aug 2025, 11:57 | 103.5 | 103.5% |
| 15 Jul 2025, 12:54 | 102.4 | 102.4% |
| 24 Jun 2025, 12:31 | 100 | 100% |
| 30 May 2025, 11:27 | 103 | 103% |
| 10 Apr 2025, 14:15 | 113.8 | 113.8% |
| 26 Mar 2025, 12:18 | 106.3 | 106.3% |
| 17 Feb 2025, 12:25 | 100 | 100% |
| 31 Jan 2025, 12:07 | 100 | 100% |
| 2 Dec 2024, 12:13 | 100 | 100% |
| 18 Nov 2024, 12:29 | 100 | 100% |
| 15 Oct 2024, 10:41 | 102.2 | 102.2% |
| 18 Sep 2024, 13:45 | 104.1 | 104.1% |
| 27 Aug 2024, 11:04 | 102.4 | 102.4% |
| 23 Jul 2024, 12:05 | 101.8 | 101.8% |
| 24 Jun 2024, 12:46 | 100 | 100% |
| 1 Mar 2024, 12:44 | 102.8 | 102.8% |
| 16 Feb 2024, 10:17 | 100.5 | 100.5% |
| 8 Jan 2024, 11:34 | 101 | 101% |
| 7 Dec 2023, 11:58 | 101.3 | 101.3% |
| 8 Nov 2023, 12:40 | 100.2 | 100.2% |
| 16 Oct 2023, 10:52 | 103.6 | 103.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.54 mg/l
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 9.54 | 9.54 mg/l |
| 17 Jul 2026, 15:41 | 9.39 | 9.39 mg/l |
| 15 Jun 2026, 11:27 | 10.3 | 10.3 mg/l |
| 12 May 2026, 12:15 | 11.6 | 11.6 mg/l |
| 22 Apr 2026, 12:52 | 12.2 | 12.2 mg/l |
| 24 Mar 2026, 14:34 | 11.2 | 11.2 mg/l |
| 18 Feb 2026, 14:01 | 12 | 12 mg/l |
| 27 Jan 2026, 10:05 | 11.7 | 11.7 mg/l |
| 18 Dec 2025, 11:51 | 11.3 | 11.3 mg/l |
| 12 Nov 2025, 12:58 | 10.5 | 10.5 mg/l |
| 1 Oct 2025, 09:54 | 10.6 | 10.6 mg/l |
| 4 Sep 2025, 11:22 | 10.3 | 10.3 mg/l |
| 12 Aug 2025, 11:57 | 9.91 | 9.91 mg/l |
| 15 Jul 2025, 12:54 | 10 | 10 mg/l |
| 24 Jun 2025, 12:31 | 9.95 | 9.95 mg/l |
| 30 May 2025, 11:27 | 10.3 | 10.3 mg/l |
| 10 Apr 2025, 14:15 | 12.4 | 12.4 mg/l |
| 26 Mar 2025, 12:18 | 11.7 | 11.7 mg/l |
| 17 Feb 2025, 12:25 | 12.2 | 12.2 mg/l |
| 31 Jan 2025, 12:07 | 11.7 | 11.7 mg/l |
| 2 Dec 2024, 12:13 | 11.2 | 11.2 mg/l |
| 18 Nov 2024, 12:29 | 11.1 | 11.1 mg/l |
| 15 Oct 2024, 10:41 | 10.7 | 10.7 mg/l |
| 18 Sep 2024, 13:45 | 10.5 | 10.5 mg/l |
| 27 Aug 2024, 11:04 | 10.2 | 10.2 mg/l |
| 23 Jul 2024, 12:05 | 10.2 | 10.2 mg/l |
| 24 Jun 2024, 12:46 | 9.44 | 9.44 mg/l |
| 1 Mar 2024, 12:44 | 12.5 | 12.5 mg/l |
| 16 Feb 2024, 10:17 | 11.3 | 11.3 mg/l |
| 8 Jan 2024, 11:34 | 12.5 | 12.5 mg/l |
| 7 Dec 2023, 11:58 | 11.5 | 11.5 mg/l |
| 8 Nov 2023, 12:40 | 11 | 11 mg/l |
| 16 Oct 2023, 10:52 | 11.6 | 11.6 mg/l |
Water temperature
code 0076 · °C
18.9 °C
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 18.9 | 18.9 °C |
| 17 Jul 2026, 15:41 | 20.9 | 20.9 °C |
| 15 Jun 2026, 11:27 | 15 | 15 °C |
| 12 May 2026, 12:15 | 10.9 | 10.9 °C |
| 22 Apr 2026, 12:52 | 10.8 | 10.8 °C |
| 24 Mar 2026, 14:34 | 10.7 | 10.7 °C |
| 18 Feb 2026, 14:01 | 8 | 8 °C |
| 27 Jan 2026, 10:05 | 8.8 | 8.8 °C |
| 18 Dec 2025, 11:51 | 10.5 | 10.5 °C |
| 12 Nov 2025, 12:58 | 13.1 | 13.1 °C |
| 1 Oct 2025, 09:54 | 11.4 | 11.4 °C |
| 4 Sep 2025, 11:22 | 14.4 | 14.4 °C |
| 12 Aug 2025, 11:57 | 17.3 | 17.3 °C |
| 15 Jul 2025, 12:54 | 16.3 | 16.3 °C |
| 24 Jun 2025, 12:31 | 15.5 | 15.5 °C |
| 30 May 2025, 11:27 | 15.4 | 15.4 °C |
| 10 Apr 2025, 14:15 | 11.5 | 11.5 °C |
| 26 Mar 2025, 12:18 | 10.9 | 10.9 °C |
| 17 Feb 2025, 12:25 | 6.9 | 6.9 °C |
| 31 Jan 2025, 12:07 | 8.4 | 8.4 °C |
| 2 Dec 2024, 12:13 | 10.4 | 10.4 °C |
| 18 Nov 2024, 12:29 | 10.5 | 10.5 °C |
| 15 Oct 2024, 10:41 | 13 | 13 °C |
| 18 Sep 2024, 13:45 | 14.9 | 14.9 °C |
| 27 Aug 2024, 11:04 | 15.6 | 15.6 °C |
| 23 Jul 2024, 12:05 | 15.1 | 15.1 °C |
| 24 Jun 2024, 12:46 | 18 | 18 °C |
| 1 Mar 2024, 12:44 | 7 | 7 °C |
| 16 Feb 2024, 10:17 | 10.2 | 10.2 °C |
| 8 Jan 2024, 11:34 | 6.3 | 6.3 °C |
| 7 Dec 2023, 11:58 | 9.6 | 9.6 °C |
| 8 Nov 2023, 12:40 | 11 | 11 °C |
| 16 Oct 2023, 10:52 | 10.3 | 10.3 °C |
pH
code 0061
7.7
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 7.7 | 7.7 |
| 17 Jul 2026, 15:41 | 7.88 | 7.88 |
| 15 Jun 2026, 11:27 | 7.52 | 7.52 |
| 12 May 2026, 12:15 | 7.86 | 7.86 |
| 22 Apr 2026, 12:52 | 7.32 | 7.32 |
| 24 Mar 2026, 14:34 | 7.55 | 7.55 |
| 18 Feb 2026, 14:01 | 7.31 | 7.31 |
| 27 Jan 2026, 10:05 | 7.07 | 7.07 |
| 18 Dec 2025, 11:51 | 7.51 | 7.51 |
| 12 Nov 2025, 12:58 | 6.9 | 6.9 |
| 1 Oct 2025, 09:54 | 7.44 | 7.44 |
| 4 Sep 2025, 11:22 | 7.21 | 7.21 |
| 12 Aug 2025, 11:57 | 7.75 | 7.75 |
| 15 Jul 2025, 12:54 | 7.81 | 7.81 |
| 24 Jun 2025, 12:31 | 7.6 | 7.6 |
| 30 May 2025, 11:27 | 7.57 | 7.57 |
| 10 Apr 2025, 14:15 | 9.43 | 9.43 |
| 26 Mar 2025, 12:18 | 8.09 | 8.09 |
| 17 Feb 2025, 12:25 | 7.58 | 7.58 |
| 31 Jan 2025, 12:07 | 7.87 | 7.87 |
| 2 Dec 2024, 12:13 | 7.4 | 7.4 |
| 18 Nov 2024, 12:29 | 7.58 | 7.58 |
| 15 Oct 2024, 10:41 | 7.39 | 7.39 |
| 18 Sep 2024, 13:45 | 7.65 | 7.65 |
| 27 Aug 2024, 11:04 | 7.93 | 7.93 |
| 23 Jul 2024, 12:05 | 7.72 | 7.72 |
| 24 Jun 2024, 12:46 | 7.87 | 7.87 |
| 1 Mar 2024, 12:44 | 7.25 | 7.25 |
| 16 Feb 2024, 10:17 | 7.47 | 7.47 |
| 8 Jan 2024, 11:34 | 7.65 | 7.65 |
| 7 Dec 2023, 11:58 | 7.11 | 7.11 |
| 8 Nov 2023, 12:40 | 7.08 | 7.08 |
| 16 Oct 2023, 10:52 | 7.37 | 7.37 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2026, 15:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jun 2026, 11:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 May 2026, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Apr 2026, 12:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2026, 14:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Feb 2026, 14:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jan 2026, 10:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2025, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Nov 2025, 12:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Oct 2025, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2025, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jul 2025, 12:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2025, 12:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 May 2025, 11:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2025, 14:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2025, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Feb 2025, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jan 2025, 12:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Dec 2024, 12:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2024, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Oct 2024, 10:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Sep 2024, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Aug 2024, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jul 2024, 12:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2024, 12:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Mar 2024, 12:44 | 0.03 | 0.03 mg/l |
| 16 Feb 2024, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2024, 11:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Dec 2023, 11:58 | 0.054 | 0.054 mg/l |
| 8 Nov 2023, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 10:52 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.7 mg/l
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 1.7 | 1.7 mg/l |
| 17 Jul 2026, 15:41 | 1.1 | 1.1 mg/l |
| 15 Jun 2026, 11:27 | 1.09 | 1.09 mg/l |
| 12 May 2026, 12:15 | 1.19 | 1.19 mg/l |
| 22 Apr 2026, 12:52 | 1.09 | 1.09 mg/l |
| 24 Mar 2026, 14:34 | 1.39 | 1.39 mg/l |
| 18 Feb 2026, 14:01 | 1.1 | 1.1 mg/l |
| 27 Jan 2026, 10:05 | 0.576 | 0.576 mg/l |
| 18 Dec 2025, 11:51 | 1.3 | 1.3 mg/l |
| 12 Nov 2025, 12:58 | 0.966 | 0.966 mg/l |
| 1 Oct 2025, 09:54 | 1.1 | 1.1 mg/l |
| 4 Sep 2025, 11:22 | 0.466 | 0.466 mg/l |
| 12 Aug 2025, 11:57 | 1.6 | 1.6 mg/l |
| 15 Jul 2025, 12:54 | 1.4 | 1.4 mg/l |
| 24 Jun 2025, 12:31 | 1.3 | 1.3 mg/l |
| 30 May 2025, 11:27 | 1.19 | 1.19 mg/l |
| 10 Apr 2025, 14:15 | 1.29 | 1.29 mg/l |
| 26 Mar 2025, 12:18 | 1.29 | 1.29 mg/l |
| 17 Feb 2025, 12:25 | 1.39 | 1.39 mg/l |
| 31 Jan 2025, 12:07 | 1.6 | 1.6 mg/l |
| 2 Dec 2024, 12:13 | 1.3 | 1.3 mg/l |
| 18 Nov 2024, 12:29 | 1.59 | 1.59 mg/l |
| 15 Oct 2024, 10:41 | 1.1 | 1.1 mg/l |
| 18 Sep 2024, 13:45 | 0.996 | 0.996 mg/l |
| 27 Aug 2024, 11:04 | 0.916 | 0.916 mg/l |
| 23 Jul 2024, 12:05 | 1.1 | 1.1 mg/l |
| 24 Jun 2024, 12:46 | 1.39 | 1.39 mg/l |
| 1 Mar 2024, 12:44 | 0.866 | 0.866 mg/l |
| 16 Feb 2024, 10:17 | 1.5 | 1.5 mg/l |
| 8 Jan 2024, 11:34 | 1.6 | 1.6 mg/l |
| 7 Dec 2023, 11:58 | 0.776 | 0.776 mg/l |
| 8 Nov 2023, 12:40 | 0.686 | 0.686 mg/l |
| 16 Oct 2023, 10:52 | 1.5 | 1.5 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.17 mg/l
Sampled 17 Jul 2026, 2 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2026, 15:41 | 0.17 | 0.17 mg/l |
| 15 Jun 2026, 11:27 | 0.068 | 0.068 mg/l |
| 12 May 2026, 12:15 | 0.095 | 0.095 mg/l |
| 22 Apr 2026, 12:52 | 0.06 | 0.06 mg/l |
| 24 Mar 2026, 14:34 | 0.055 | 0.055 mg/l |
| 18 Feb 2026, 14:01 | 0.02 | 0.02 mg/l |
| 27 Jan 2026, 10:05 | 0.019 | 0.019 mg/l |
| 18 Dec 2025, 11:51 | 0.025 | 0.025 mg/l |
| 12 Nov 2025, 12:58 | 0.024 | 0.024 mg/l |
| 1 Oct 2025, 09:54 | 0.057 | 0.057 mg/l |
| 4 Sep 2025, 11:22 | 0.035 | 0.035 mg/l |
| 12 Aug 2025, 11:57 | 0.19 | 0.19 mg/l |
| 15 Jul 2025, 12:54 | 0.13 | 0.13 mg/l |
| 24 Jun 2025, 12:31 | 0.067 | 0.067 mg/l |
| 30 May 2025, 11:27 | 0.077 | 0.077 mg/l |
| 10 Apr 2025, 14:15 | 0.064 | 0.064 mg/l |
| 26 Mar 2025, 12:18 | 0.063 | 0.063 mg/l |
| 17 Feb 2025, 12:25 | 0.047 | 0.047 mg/l |
| 31 Jan 2025, 12:07 | 0.026 | 0.026 mg/l |
| 2 Dec 2024, 12:13 | 0.022 | 0.022 mg/l |
| 18 Nov 2024, 12:29 | 0.11 | 0.11 mg/l |
| 15 Oct 2024, 10:41 | 0.03 | 0.03 mg/l |
| 18 Sep 2024, 13:45 | 0.076 | 0.076 mg/l |
| 27 Aug 2024, 11:04 | 0.062 | 0.062 mg/l |
| 23 Jul 2024, 12:05 | 0.053 | 0.053 mg/l |
| 24 Jun 2024, 12:46 | 0.084 | 0.084 mg/l |
| 1 Mar 2024, 12:44 | 0.02 | 0.02 mg/l |
| 16 Feb 2024, 10:17 | 0.022 | 0.022 mg/l |
| 8 Jan 2024, 11:34 | 0.022 | 0.022 mg/l |
| 7 Dec 2023, 11:58 | 0.031 | 0.031 mg/l |
| 8 Nov 2023, 12:40 | 0.016 | 0.016 mg/l |
| 16 Oct 2023, 10:52 | 0.028 | 0.028 mg/l |
Turbidity
code 6396 · NTU
below 1 NTU (not detected above this)
Sampled 13 Aug 2026, 49 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | <1 | below 1 NTU (not detected above this) |
| 17 Jul 2026, 15:41 | <1 | below 1 NTU (not detected above this) |
| 15 Jun 2026, 11:27 | <1 | below 1 NTU (not detected above this) |
| 12 May 2026, 12:15 | <1 | below 1 NTU (not detected above this) |
| 22 Apr 2026, 12:52 | <1 | below 1 NTU (not detected above this) |
| 24 Mar 2026, 14:34 | <1 | below 1 NTU (not detected above this) |
| 18 Feb 2026, 14:01 | 2.6 | 2.6 NTU |
| 27 Jan 2026, 10:05 | 19 | 19 NTU |
| 18 Dec 2025, 11:51 | 4.3 | 4.3 NTU |
| 12 Nov 2025, 12:58 | 6.3 | 6.3 NTU |
| 1 Oct 2025, 09:54 | 1.2 | 1.2 NTU |
| 10 Apr 2025, 14:15 | <1 | below 1 NTU (not detected above this) |
| 1 Mar 2024, 12:44 | 5.8 | 5.8 NTU |
| 16 Feb 2024, 10:17 | 1.9 | 1.9 NTU |
| 8 Jan 2024, 11:34 | 1.1 | 1.1 NTU |
| 7 Dec 2023, 11:58 | 53 | 53 NTU |
| 8 Nov 2023, 12:40 | 7 | 7 NTU |
| 16 Oct 2023, 10:52 | 1.1 | 1.1 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
130 µS/cm
Sampled 13 Aug 2026, 49 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Aug 2026, 12:37 | 130 | 130 µS/cm |
| 17 Jul 2026, 15:41 | 109 | 109 µS/cm |
| 15 Jun 2026, 11:27 | 98 | 98 µS/cm |
| 12 May 2026, 12:15 | 107 | 107 µS/cm |
| 22 Apr 2026, 12:52 | 102 | 102 µS/cm |
| 24 Mar 2026, 14:34 | 107 | 107 µS/cm |
| 18 Feb 2026, 14:01 | 87 | 87 µS/cm |
| 27 Jan 2026, 10:05 | 57 | 57 µS/cm |
| 18 Dec 2025, 11:51 | 94 | 94 µS/cm |
| 12 Nov 2025, 12:58 | 78 | 78 µS/cm |
| 1 Oct 2025, 09:54 | 104 | 104 µS/cm |
| 4 Sep 2025, 11:22 | 66 | 66 µS/cm |
| 12 Aug 2025, 11:57 | 120 | 120 µS/cm |
| 15 Jul 2025, 12:54 | 114 | 114 µS/cm |
| 24 Jun 2025, 12:31 | 108 | 108 µS/cm |
| 30 May 2025, 11:27 | 99 | 99 µS/cm |
| 10 Apr 2025, 14:15 | 120 | 120 µS/cm |
| 26 Mar 2025, 12:18 | 111 | 111 µS/cm |
| 17 Feb 2025, 12:25 | 110 | 110 µS/cm |
| 31 Jan 2025, 12:07 | 118 | 118 µS/cm |
| 2 Dec 2024, 12:13 | 98 | 98 µS/cm |
| 18 Nov 2024, 12:29 | 111 | 111 µS/cm |
| 15 Oct 2024, 10:41 | 96 | 96 µS/cm |
| 18 Sep 2024, 13:45 | 97 | 97 µS/cm |
| 27 Aug 2024, 11:04 | 100 | 100 µS/cm |
| 23 Jul 2024, 12:05 | 140 | 140 µS/cm |
| 24 Jun 2024, 12:46 | 116 | 116 µS/cm |
| 1 Mar 2024, 12:44 | 70 | 70 µS/cm |
| 16 Feb 2024, 10:17 | 97 | 97 µS/cm |
| 8 Jan 2024, 11:34 | 109 | 109 µS/cm |
| 7 Dec 2023, 11:58 | 70 | 70 µS/cm |
| 8 Nov 2023, 12:40 | 65 | 65 µS/cm |
| 16 Oct 2023, 10:52 | 111 | 111 µS/cm |
Everything measured here
80 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 80 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Aug 2026 | 102.9% 13 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Aug 2026 | 9.54 mg/l 13 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Aug 2026 | 18.9 °C 13 Aug 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Aug 2026 | 7.7 13 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Aug 2026 | below 0.03 mg/l 13 Aug 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Aug 2026 | 1.7 mg/l 13 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Jul 2026 | 0.17 mg/l 17 Jul 2026 |
| Turbidity 6396 | River water | 18 | Oct 2023 – Aug 2026 | below 1 NTU 13 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Aug 2026 | 130 µS/cm 13 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Dec 2023 – Sep 2024 | below 0.004 µg/l 18 Sep 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 18 Sep 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 23 mg/l 12 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Aug 2026 | below 0.00053 mg/l 13 Aug 2026 |
| Arsenic, Dissolved 6045 | River water | 23 | Oct 2023 – Aug 2026 | 15 µg/l 13 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1.4 mg/l 12 May 2026 |
| Boron, Dissolved 9447 | River water | 23 | Oct 2023 – Aug 2026 | below 100 µg/l 13 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 23 | Oct 2023 – Aug 2026 | 0.018 µg/l 13 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 12 | Apr 2025 – Aug 2026 | 1.7 mg/l 13 Aug 2026 |
| Chloride 0172 | River water | 18 | Oct 2023 – Aug 2026 | 13 mg/l 13 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 15 | Oct 2023 – Aug 2026 | 3.1 µg/l 13 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 23 | Oct 2023 – Aug 2026 | below 0.5 µg/l 13 Aug 2026 |
| Copper, Dissolved 6450 | River water | 23 | Oct 2023 – Aug 2026 | 2.8 µg/l 13 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Iron, Dissolved 6460 | River water | 23 | Oct 2023 – Aug 2026 | 36 µg/l 13 Aug 2026 |
| Lead, Dissolved 0052 | River water | 23 | Oct 2023 – Aug 2026 | below 0.1 µg/l 13 Aug 2026 |
| Manganese, Dissolved 6458 | River water | 23 | Oct 2023 – Aug 2026 | below 10 µg/l 13 Aug 2026 |
| Mercury, Dissolved 0103 | River water | 23 | Oct 2023 – Aug 2026 | below 0.01 µg/l 13 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Nickel, Dissolved 3410 | River water | 23 | Oct 2023 – Aug 2026 | 0.74 µg/l 13 Aug 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Aug 2026 | below 0.004 mg/l 13 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Aug 2026 | 1.7 mg/l 13 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorobutanoic acid 2995 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Perfluorodecanoic acid 8892 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 18 Sep 2024 |
| Perfluorododecanoic acid 8894 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoroheptanoic acid 8889 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorohexanoic acid 8888 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorononanoic acid 8891 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Dec 2023 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluorooctanoic acid 8890 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Dec 2023 – Sep 2024 | below 0.0005 µg/l 18 Sep 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | May 2024 – Sep 2024 | below 0.001 µg/l 18 Sep 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 3 | Dec 2023 – Sep 2024 | below 0.006 µg/l 18 Sep 2024 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Dec 2023 – Sep 2024 | below 0.005 µg/l 18 Sep 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Dec 2023 – Sep 2024 | below 0.004 µg/l 18 Sep 2024 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Dec 2023 – Sep 2024 | below 0.002 µg/l 18 Sep 2024 |
| Phosphorus, Total as P 0348 | River water | 18 | Oct 2023 – Aug 2026 | 0.31 mg/l 13 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 23 | Oct 2023 – Aug 2026 | 2 mg/l 13 Aug 2026 |
| Silica, reactive as SiO2 0182 | River water | 18 | Oct 2023 – Aug 2026 | 4.2 mg/l 13 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 23 | Oct 2023 – Aug 2026 | 11 mg/l 13 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 23 | Oct 2023 – Aug 2026 | below 10 mg/l 13 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 23 | Oct 2023 – Aug 2026 | 3.8 µg/l 13 Aug 2026 |
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.