River Darwen at Feniscliffe Bridge
EA name: RIVER DARWEN AT FENISCLIFFE BRIDGE
Environment Agency sampling point NW-88003540 · 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
- 24 Jun 2026, 11:213 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 20 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 366251, 426961As published, to the nearest 1 m. Open in a map
- River, by its own name
- Darwen
- River, by the map
- River DarwenPlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Blue Bridge On the River Darwen · 18 km along the river (the path rests on a repair to the map)
- Nearest gauge upstream
- Blackburn Waterfall On the River Darwen · 1.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
113.8%
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 113.8 | 113.8% |
| 29 May 2026, 10:19 | 99.2 | 99.2% |
| 7 May 2026, 11:31 | 112.2 | 112.2% |
| 27 Apr 2026, 12:04 | 140.9 | 140.9% |
| 16 Mar 2026, 09:20 | 100.5 | 100.5% |
| 13 Mar 2026, 14:15 | 104 | 104% |
| 16 Feb 2026, 12:36 | 99.1 | 99.1% |
| 4 Feb 2026, 10:33 | 100 | 100% |
| 29 Jan 2026, 12:09 | 100.1 | 100.1% |
| 8 Jan 2026, 10:51 | 96.7 | 96.7% |
| 15 Dec 2025, 13:14 | 101.8 | 101.8% |
| 3 Dec 2025, 13:01 | 100.9 | 100.9% |
| 28 Nov 2025, 11:02 | 101.9 | 101.9% |
| 6 Nov 2025, 11:24 | 102 | 102% |
| 12 Mar 2025, 10:31 | 108.9 | 108.9% |
| 19 Feb 2025, 10:57 | 107 | 107% |
| 31 Jan 2025, 09:32 | 101 | 101% |
| 10 Dec 2024, 11:04 | 100.5 | 100.5% |
| 19 Nov 2024, 12:27 | 102.1 | 102.1% |
| 15 Oct 2024, 12:30 | 101 | 101% |
| 18 Sep 2024, 10:45 | 91.6 | 91.6% |
| 23 Aug 2024, 08:59 | 95.7 | 95.7% |
| 17 Jul 2024, 11:10 | 102.8 | 102.8% |
| 18 Jun 2024, 13:15 | 103.4 | 103.4% |
| 16 May 2024, 10:50 | 105.2 | 105.2% |
| 19 Apr 2024, 10:18 | 105.6 | 105.6% |
| 9 Apr 2024, 12:42 | 100 | 100% |
| 20 Mar 2024, 10:21 | 103.5 | 103.5% |
| 21 Feb 2024, 11:02 | 102.2 | 102.2% |
| 24 Jan 2024, 10:44 | 99.6 | 99.6% |
| 6 Dec 2023, 14:36 | 99.1 | 99.1% |
| 20 Nov 2023, 12:48 | 100.1 | 100.1% |
| 20 Oct 2023, 10:01 | 95.1 | 95.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.7 mg/l
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 10.7 | 10.7 mg/l |
| 29 May 2026, 10:19 | 10 | 10 mg/l |
| 7 May 2026, 11:31 | 12.8 | 12.8 mg/l |
| 27 Apr 2026, 12:04 | 15 | 15 mg/l |
| 16 Mar 2026, 09:20 | 12.3 | 12.3 mg/l |
| 13 Mar 2026, 14:15 | 12.6 | 12.6 mg/l |
| 16 Feb 2026, 12:36 | 12.4 | 12.4 mg/l |
| 4 Feb 2026, 10:33 | 12.6 | 12.6 mg/l |
| 29 Jan 2026, 12:09 | 12.5 | 12.5 mg/l |
| 8 Jan 2026, 10:51 | 12.5 | 12.5 mg/l |
| 15 Dec 2025, 13:14 | 11.8 | 11.8 mg/l |
| 3 Dec 2025, 13:01 | 12.3 | 12.3 mg/l |
| 28 Nov 2025, 11:02 | 12 | 12 mg/l |
| 6 Nov 2025, 11:24 | 11 | 11 mg/l |
| 12 Mar 2025, 10:31 | 13.7 | 13.7 mg/l |
| 19 Feb 2025, 10:57 | 13.9 | 13.9 mg/l |
| 31 Jan 2025, 09:32 | 12.9 | 12.9 mg/l |
| 10 Dec 2024, 11:04 | 12.4 | 12.4 mg/l |
| 19 Nov 2024, 12:27 | 12.6 | 12.6 mg/l |
| 15 Oct 2024, 12:30 | 11.2 | 11.2 mg/l |
| 18 Sep 2024, 10:45 | 9.67 | 9.67 mg/l |
| 23 Aug 2024, 08:59 | 9.95 | 9.95 mg/l |
| 17 Jul 2024, 11:10 | 10.4 | 10.4 mg/l |
| 18 Jun 2024, 13:15 | 10.9 | 10.9 mg/l |
| 16 May 2024, 10:50 | 10.9 | 10.9 mg/l |
| 19 Apr 2024, 10:18 | 12.1 | 12.1 mg/l |
| 9 Apr 2024, 12:42 | 11.6 | 11.6 mg/l |
| 20 Mar 2024, 10:21 | 11.9 | 11.9 mg/l |
| 21 Feb 2024, 11:02 | 12.1 | 12.1 mg/l |
| 24 Jan 2024, 10:44 | 12.1 | 12.1 mg/l |
| 6 Dec 2023, 14:36 | 12.9 | 12.9 mg/l |
| 20 Nov 2023, 12:48 | 11.4 | 11.4 mg/l |
| 20 Oct 2023, 10:01 | 10 | 10 mg/l |
Water temperature
code 0076 · °C
18.2 °C
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 18.2 | 18.2 °C |
| 29 May 2026, 10:19 | 14.9 | 14.9 °C |
| 7 May 2026, 11:31 | 9.4 | 9.4 °C |
| 27 Apr 2026, 12:04 | 12.5 | 12.5 °C |
| 16 Mar 2026, 09:20 | 6.6 | 6.6 °C |
| 13 Mar 2026, 14:15 | 7.1 | 7.1 °C |
| 16 Feb 2026, 12:36 | 5.6 | 5.6 °C |
| 4 Feb 2026, 10:33 | 5.4 | 5.4 °C |
| 29 Jan 2026, 12:09 | 5.7 | 5.7 °C |
| 8 Jan 2026, 10:51 | 4.4 | 4.4 °C |
| 15 Dec 2025, 13:14 | 8.8 | 8.8 °C |
| 3 Dec 2025, 13:01 | 6.9 | 6.9 °C |
| 28 Nov 2025, 11:02 | 8 | 8 °C |
| 6 Nov 2025, 11:24 | 11.7 | 11.7 °C |
| 12 Mar 2025, 10:31 | 5.5 | 5.5 °C |
| 19 Feb 2025, 10:57 | 4.4 | 4.4 °C |
| 31 Jan 2025, 09:32 | 5 | 5 °C |
| 10 Dec 2024, 11:04 | 6.3 | 6.3 °C |
| 19 Nov 2024, 12:27 | 6.3 | 6.3 °C |
| 15 Oct 2024, 12:30 | 10.7 | 10.7 °C |
| 18 Sep 2024, 10:45 | 12.8 | 12.8 °C |
| 23 Aug 2024, 08:59 | 13.5 | 13.5 °C |
| 17 Jul 2024, 11:10 | 14.7 | 14.7 °C |
| 18 Jun 2024, 13:15 | 12.9 | 12.9 °C |
| 16 May 2024, 10:50 | 13.6 | 13.6 °C |
| 19 Apr 2024, 10:18 | 9.3 | 9.3 °C |
| 9 Apr 2024, 12:42 | 8.7 | 8.7 °C |
| 20 Mar 2024, 10:21 | 9.2 | 9.2 °C |
| 21 Feb 2024, 11:02 | 8 | 8 °C |
| 24 Jan 2024, 10:44 | 6.9 | 6.9 °C |
| 6 Dec 2023, 14:36 | 4.2 | 4.2 °C |
| 20 Nov 2023, 12:48 | 9.7 | 9.7 °C |
| 20 Oct 2023, 10:01 | 12.8 | 12.8 °C |
pH
code 0061
8.52
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 8.52 | 8.52 |
| 29 May 2026, 10:19 | 8.13 | 8.13 |
| 7 May 2026, 11:31 | 8.48 | 8.48 |
| 27 Apr 2026, 12:04 | 9.18 | 9.18 |
| 16 Mar 2026, 09:20 | 8.22 | 8.22 |
| 13 Mar 2026, 14:15 | 8.18 | 8.18 |
| 16 Feb 2026, 12:36 | 8.11 | 8.11 |
| 4 Feb 2026, 10:33 | 8.11 | 8.11 |
| 29 Jan 2026, 12:09 | 8.09 | 8.09 |
| 8 Jan 2026, 10:51 | 8.1 | 8.1 |
| 15 Dec 2025, 13:14 | 7.88 | 7.88 |
| 3 Dec 2025, 13:01 | 8.02 | 8.02 |
| 28 Nov 2025, 11:02 | 7.95 | 7.95 |
| 6 Nov 2025, 11:24 | 7.94 | 7.94 |
| 12 Mar 2025, 10:31 | 8.8 | 8.8 |
| 19 Feb 2025, 10:57 | 8.25 | 8.25 |
| 31 Jan 2025, 09:32 | 7.96 | 7.96 |
| 10 Dec 2024, 11:04 | 7.97 | 7.97 |
| 19 Nov 2024, 12:27 | 7.99 | 7.99 |
| 15 Oct 2024, 12:30 | 8.16 | 8.16 |
| 18 Sep 2024, 10:45 | 7.96 | 7.96 |
| 23 Aug 2024, 08:59 | 8.12 | 8.12 |
| 17 Jul 2024, 11:10 | 8.32 | 8.32 |
| 18 Jun 2024, 13:15 | 8.28 | 8.28 |
| 16 May 2024, 10:50 | 8.26 | 8.26 |
| 19 Apr 2024, 10:18 | 8.15 | 8.15 |
| 9 Apr 2024, 12:42 | 8.06 | 8.06 |
| 20 Mar 2024, 10:21 | 8.02 | 8.02 |
| 21 Feb 2024, 11:02 | 7.92 | 7.92 |
| 24 Jan 2024, 10:44 | 8.07 | 8.07 |
| 6 Dec 2023, 14:36 | 8.05 | 8.05 |
| 20 Nov 2023, 12:48 | 7.85 | 7.85 |
| 20 Oct 2023, 10:01 | 7.77 | 7.77 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2026, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2026, 11:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Mar 2026, 09:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2026, 14:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Feb 2026, 12:36 | 0.088 | 0.088 mg/l |
| 4 Feb 2026, 10:33 | 0.13 | 0.13 mg/l |
| 29 Jan 2026, 12:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2026, 10:51 | 0.035 | 0.035 mg/l |
| 15 Dec 2025, 13:14 | 0.24 | 0.24 mg/l |
| 3 Dec 2025, 13:01 | 0.033 | 0.033 mg/l |
| 28 Nov 2025, 11:02 | 0.04 | 0.04 mg/l |
| 6 Nov 2025, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2025, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2025, 10:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Jan 2025, 09:32 | 0.12 | 0.12 mg/l |
| 10 Dec 2024, 11:04 | 0.052 | 0.052 mg/l |
| 19 Nov 2024, 12:27 | 0.12 | 0.12 mg/l |
| 15 Oct 2024, 12:30 | 0.033 | 0.033 mg/l |
| 18 Sep 2024, 10:45 | 1.2 | 1.2 mg/l |
| 23 Aug 2024, 08:59 | 0.33 | 0.33 mg/l |
| 17 Jul 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jun 2024, 13:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 May 2024, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Apr 2024, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2024, 12:42 | 0.077 | 0.077 mg/l |
| 20 Mar 2024, 10:21 | 0.14 | 0.14 mg/l |
| 21 Feb 2024, 11:02 | 0.19 | 0.19 mg/l |
| 24 Jan 2024, 10:44 | 0.048 | 0.048 mg/l |
| 6 Dec 2023, 14:36 | 0.043 | 0.043 mg/l |
| 20 Nov 2023, 12:48 | 0.1 | 0.1 mg/l |
| 20 Oct 2023, 10:01 | 0.13 | 0.13 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.876 mg/l
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 0.876 | 0.876 mg/l |
| 29 May 2026, 10:19 | 0.893 | 0.893 mg/l |
| 7 May 2026, 11:31 | 0.643 | 0.643 mg/l |
| 27 Apr 2026, 12:04 | 0.374 | 0.374 mg/l |
| 16 Mar 2026, 09:20 | 0.914 | 0.914 mg/l |
| 13 Mar 2026, 14:15 | 0.99 | 0.99 mg/l |
| 16 Feb 2026, 12:36 | 0.953 | 0.953 mg/l |
| 4 Feb 2026, 10:33 | 1.18 | 1.18 mg/l |
| 29 Jan 2026, 12:09 | 1.19 | 1.19 mg/l |
| 8 Jan 2026, 10:51 | 1.19 | 1.19 mg/l |
| 15 Dec 2025, 13:14 | 0.822 | 0.822 mg/l |
| 3 Dec 2025, 13:01 | 1.09 | 1.09 mg/l |
| 28 Nov 2025, 11:02 | 0.994 | 0.994 mg/l |
| 6 Nov 2025, 11:24 | 0.971 | 0.971 mg/l |
| 12 Mar 2025, 10:31 | 0.792 | 0.792 mg/l |
| 19 Feb 2025, 10:57 | 0.872 | 0.872 mg/l |
| 31 Jan 2025, 09:32 | 0.919 | 0.919 mg/l |
| 10 Dec 2024, 11:04 | 1.09 | 1.09 mg/l |
| 19 Nov 2024, 12:27 | 0.982 | 0.982 mg/l |
| 15 Oct 2024, 12:30 | 0.83 | 0.83 mg/l |
| 18 Sep 2024, 10:45 | 1.64 | 1.64 mg/l |
| 23 Aug 2024, 08:59 | 0.661 | 0.661 mg/l |
| 17 Jul 2024, 11:10 | 0.889 | 0.889 mg/l |
| 18 Jun 2024, 13:15 | 0.879 | 0.879 mg/l |
| 16 May 2024, 10:50 | 0.73 | 0.73 mg/l |
| 19 Apr 2024, 10:18 | 0.685 | 0.685 mg/l |
| 9 Apr 2024, 12:42 | 0.511 | 0.511 mg/l |
| 20 Mar 2024, 10:21 | 0.773 | 0.773 mg/l |
| 21 Feb 2024, 11:02 | 0.66 | 0.66 mg/l |
| 24 Jan 2024, 10:44 | 1.29 | 1.29 mg/l |
| 6 Dec 2023, 14:36 | 1.09 | 1.09 mg/l |
| 20 Nov 2023, 12:48 | 0.957 | 0.957 mg/l |
| 20 Oct 2023, 10:01 | 0.669 | 0.669 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.064 mg/l
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 0.064 | 0.064 mg/l |
| 29 May 2026, 10:19 | 0.061 | 0.061 mg/l |
| 7 May 2026, 11:31 | 0.03 | 0.03 mg/l |
| 27 Apr 2026, 12:04 | 0.033 | 0.033 mg/l |
| 16 Mar 2026, 09:20 | 0.041 | 0.041 mg/l |
| 13 Mar 2026, 14:15 | 0.059 | 0.059 mg/l |
| 16 Feb 2026, 12:36 | 0.043 | 0.043 mg/l |
| 4 Feb 2026, 10:33 | 0.064 | 0.064 mg/l |
| 29 Jan 2026, 12:09 | 0.043 | 0.043 mg/l |
| 8 Jan 2026, 10:51 | 0.046 | 0.046 mg/l |
| 15 Dec 2025, 13:14 | 0.085 | 0.085 mg/l |
| 3 Dec 2025, 13:01 | 0.043 | 0.043 mg/l |
| 28 Nov 2025, 11:02 | 0.053 | 0.053 mg/l |
| 6 Nov 2025, 11:24 | 0.051 | 0.051 mg/l |
| 12 Mar 2025, 10:31 | 0.037 | 0.037 mg/l |
| 19 Feb 2025, 10:57 | 0.043 | 0.043 mg/l |
| 31 Jan 2025, 09:32 | 0.056 | 0.056 mg/l |
| 10 Dec 2024, 11:04 | 0.041 | 0.041 mg/l |
| 19 Nov 2024, 12:27 | 0.094 | 0.094 mg/l |
| 15 Oct 2024, 12:30 | 0.067 | 0.067 mg/l |
| 18 Sep 2024, 10:45 | 0.22 | 0.22 mg/l |
| 23 Aug 2024, 08:59 | 0.097 | 0.097 mg/l |
| 17 Jul 2024, 11:10 | 0.052 | 0.052 mg/l |
| 18 Jun 2024, 13:15 | 0.057 | 0.057 mg/l |
| 16 May 2024, 10:50 | 0.039 | 0.039 mg/l |
| 19 Apr 2024, 10:18 | 0.035 | 0.035 mg/l |
| 9 Apr 2024, 12:42 | 0.033 | 0.033 mg/l |
| 20 Mar 2024, 10:21 | 0.056 | 0.056 mg/l |
| 21 Feb 2024, 11:02 | 0.069 | 0.069 mg/l |
| 24 Jan 2024, 10:44 | 0.042 | 0.042 mg/l |
| 6 Dec 2023, 14:36 | 0.04 | 0.04 mg/l |
| 20 Nov 2023, 12:48 | 0.055 | 0.055 mg/l |
| 20 Oct 2023, 10:01 | 0.058 | 0.058 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
430 µS/cm
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:21 | 430 | 430 µS/cm |
| 29 May 2026, 10:19 | 410 | 410 µS/cm |
| 7 May 2026, 11:31 | 421 | 421 µS/cm |
| 27 Apr 2026, 12:04 | 396 | 396 µS/cm |
| 16 Mar 2026, 09:20 | 316 | 316 µS/cm |
| 13 Mar 2026, 14:15 | 302 | 302 µS/cm |
| 16 Feb 2026, 12:36 | 246 | 246 µS/cm |
| 4 Feb 2026, 10:33 | 383 | 383 µS/cm |
| 29 Jan 2026, 12:09 | 303 | 303 µS/cm |
| 8 Jan 2026, 10:51 | 411 | 411 µS/cm |
| 15 Dec 2025, 13:14 | 167 | 167 µS/cm |
| 3 Dec 2025, 13:01 | 260 | 260 µS/cm |
| 28 Nov 2025, 11:02 | 309 | 309 µS/cm |
| 6 Nov 2025, 11:24 | 247 | 247 µS/cm |
| 12 Mar 2025, 10:31 | 418 | 418 µS/cm |
| 19 Feb 2025, 10:57 | 424 | 424 µS/cm |
| 31 Jan 2025, 09:32 | 373 | 373 µS/cm |
| 10 Dec 2024, 11:04 | 286 | 286 µS/cm |
| 19 Nov 2024, 12:27 | 627 | 627 µS/cm |
| 15 Oct 2024, 12:30 | 350 | 350 µS/cm |
| 18 Sep 2024, 10:45 | 627 | 627 µS/cm |
| 23 Aug 2024, 08:59 | 202 | 202 µS/cm |
| 17 Jul 2024, 11:10 | 408 | 408 µS/cm |
| 18 Jun 2024, 13:15 | 353 | 353 µS/cm |
| 16 May 2024, 10:50 | 343 | 343 µS/cm |
| 19 Apr 2024, 10:18 | 235 | 235 µS/cm |
| 9 Apr 2024, 12:42 | 165 | 165 µS/cm |
| 20 Mar 2024, 10:21 | 250 | 250 µS/cm |
| 21 Feb 2024, 11:02 | 140 | 140 µS/cm |
| 24 Jan 2024, 10:44 | 281 | 281 µS/cm |
| 6 Dec 2023, 14:36 | 306 | 306 µS/cm |
| 20 Nov 2023, 12:48 | 211 | 211 µS/cm |
| 20 Oct 2023, 10:01 | 0 | 0 µS/cm |
Everything measured here
60 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 60 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Jun 2026 | 113.8% 24 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Jun 2026 | 10.7 mg/l 24 Jun 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Jun 2026 | 18.2 °C 24 Jun 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Jun 2026 | 8.52 24 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Jun 2026 | below 0.03 mg/l 24 Jun 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Jun 2026 | 0.876 mg/l 24 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Jun 2026 | 0.064 mg/l 24 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Jun 2026 | 430 µS/cm 24 Jun 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | May 2024 – May 2024 | below 0.004 µg/l 16 May 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 16 May 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | May 2024 – May 2024 | 0.002 µg/l 16 May 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Jun 2026 | 130 mg/l 24 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Jun 2026 | below 0.00099 mg/l 24 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 27 | Feb 2024 – Jun 2026 | below 1 mg/l 24 Jun 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Jun 2026 | below 0.004 mg/l 24 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Jun 2026 | 0.88 mg/l 24 Jun 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | May 2024 – May 2024 | 0.0012 µg/l 16 May 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | May 2024 – May 2024 | 0.0028 µg/l 16 May 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 16 May 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | May 2024 – May 2024 | 0.0016 µg/l 16 May 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | May 2024 – May 2024 | 0.0018 µg/l 16 May 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 16 May 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | May 2024 – May 2024 | 0.00064 µg/l 16 May 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | May 2024 – May 2024 | 0.00093 µg/l 16 May 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | May 2024 – May 2024 | 0.068 µg/l 16 May 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 16 May 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | May 2024 – May 2024 | 0.0014 µg/l 16 May 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | May 2024 – May 2024 | below 0.006 µg/l 16 May 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 16 May 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | May 2024 – May 2024 | below 0.004 µg/l 16 May 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 16 May 2024 |
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.