River Roden at the Avenue
EA name: RIVER RODEN AT THE AVENUE
Environment Agency sampling point MD-27049020 · 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
- 28 May 2026, 11:154 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 28 since 3 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 346668, 330990As published, to the nearest 1 m. Open in a map
- River, by its own name
- Roden
- River, by the map
- River RodenPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Rodington On the River Roden · 36 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (14 samples)
Monitoring (national agency policy) (14 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
79.2%
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 79.2 | 79.2% |
| 13 Apr 2026, 10:22 | 81.2 | 81.2% |
| 10 Mar 2026, 12:22 | 81.6 | 81.6% |
| 13 Feb 2026, 08:32 | 77 | 77% |
| 7 Jan 2026, 09:39 | 85.7 | 85.7% |
| 11 Dec 2025, 10:14 | 68.5 | 68.5% |
| 7 Nov 2025, 12:49 | 67.7 | 67.7% |
| 10 Oct 2025, 10:29 | 84.5 | 84.5% |
| 1 Sep 2025, 11:45 | 90.2 | 90.2% |
| 4 Aug 2025, 11:39 | 91.6 | 91.6% |
| 1 Jul 2025, 10:27 | 83.3 | 83.3% |
| 13 Jun 2025, 11:02 | 85.8 | 85.8% |
| 1 May 2025, 11:15 | 85.9 | 85.9% |
| 3 Apr 2025, 11:11 | 83.7 | 83.7% |
| 11 Mar 2025, 10:27 | 79.7 | 79.7% |
| 13 Feb 2025, 11:48 | 81.1 | 81.1% |
| 23 Jan 2025, 09:48 | 69.8 | 69.8% |
| 5 Dec 2024, 10:56 | 63.5 | 63.5% |
| 18 Nov 2024, 10:39 | 65.3 | 65.3% |
| 18 Sep 2024, 10:49 | 73.3 | 73.3% |
| 22 Aug 2024, 14:01 | 86.5 | 86.5% |
| 17 Jul 2024, 12:25 | 68 | 68% |
| 24 Jun 2024, 13:06 | 76.8 | 76.8% |
| 12 Mar 2024, 11:59 | 70 | 70% |
| 12 Feb 2024, 10:05 | 75.1 | 75.1% |
| 6 Dec 2023, 11:36 | 72.2 | 72.2% |
| 16 Nov 2023, 11:44 | 60.4 | 60.4% |
| 3 Oct 2023, 11:20 | 60.1 | 60.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.54 mg/l
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 7.54 | 7.54 mg/l |
| 13 Apr 2026, 10:22 | 9.58 | 9.58 mg/l |
| 10 Mar 2026, 12:22 | 9.44 | 9.44 mg/l |
| 13 Feb 2026, 08:32 | 9.57 | 9.57 mg/l |
| 7 Jan 2026, 09:39 | 11.5 | 11.5 mg/l |
| 11 Dec 2025, 10:14 | 8.16 | 8.16 mg/l |
| 7 Nov 2025, 12:49 | 7.33 | 7.33 mg/l |
| 10 Oct 2025, 10:29 | 9.04 | 9.04 mg/l |
| 1 Sep 2025, 11:45 | 9.17 | 9.17 mg/l |
| 4 Aug 2025, 11:39 | 8.98 | 8.98 mg/l |
| 1 Jul 2025, 10:27 | 8.03 | 8.03 mg/l |
| 13 Jun 2025, 11:02 | 8.5 | 8.5 mg/l |
| 1 May 2025, 11:15 | 8.85 | 8.85 mg/l |
| 3 Apr 2025, 11:11 | 9.5 | 9.5 mg/l |
| 11 Mar 2025, 10:27 | 9.57 | 9.57 mg/l |
| 13 Feb 2025, 11:48 | 10.2 | 10.2 mg/l |
| 23 Jan 2025, 09:48 | 8.77 | 8.77 mg/l |
| 5 Dec 2024, 10:56 | 7.42 | 7.42 mg/l |
| 18 Nov 2024, 10:39 | 7.59 | 7.59 mg/l |
| 18 Sep 2024, 10:49 | 7.86 | 7.86 mg/l |
| 22 Aug 2024, 14:01 | 8.55 | 8.55 mg/l |
| 17 Jul 2024, 12:25 | 6.74 | 6.74 mg/l |
| 24 Jun 2024, 13:06 | 7.43 | 7.43 mg/l |
| 12 Mar 2024, 11:59 | 8.24 | 8.24 mg/l |
| 12 Feb 2024, 10:05 | 9.6 | 9.6 mg/l |
| 6 Dec 2023, 11:36 | 9.63 | 9.63 mg/l |
| 16 Nov 2023, 11:44 | 7.27 | 7.27 mg/l |
| 3 Oct 2023, 11:20 | 6.32 | 6.32 mg/l |
Water temperature
code 0076 · °C
17.6 °C
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 17.6 | 17.6 °C |
| 13 Apr 2026, 10:22 | 8.1 | 8.1 °C |
| 10 Mar 2026, 12:22 | 8.9 | 8.9 °C |
| 13 Feb 2026, 08:32 | 6 | 6 °C |
| 7 Jan 2026, 09:39 | 3 | 3 °C |
| 11 Dec 2025, 10:14 | 7.7 | 7.7 °C |
| 7 Nov 2025, 12:49 | 11.7 | 11.7 °C |
| 10 Oct 2025, 10:29 | 12.2 | 12.2 °C |
| 1 Sep 2025, 11:45 | 14.5 | 14.5 °C |
| 4 Aug 2025, 11:39 | 16.2 | 16.2 °C |
| 1 Jul 2025, 10:27 | 17 | 17 °C |
| 13 Jun 2025, 11:02 | 15.7 | 15.7 °C |
| 1 May 2025, 11:15 | 13.9 | 13.9 °C |
| 3 Apr 2025, 11:11 | 9.7 | 9.7 °C |
| 11 Mar 2025, 10:27 | 7.4 | 7.4 °C |
| 13 Feb 2025, 11:48 | 5.5 | 5.5 °C |
| 23 Jan 2025, 09:48 | 5.6 | 5.6 °C |
| 5 Dec 2024, 10:56 | 8.5 | 8.5 °C |
| 18 Nov 2024, 10:39 | 8.7 | 8.7 °C |
| 18 Sep 2024, 10:49 | 12.1 | 12.1 °C |
| 22 Aug 2024, 14:01 | 15.8 | 15.8 °C |
| 17 Jul 2024, 12:25 | 15.7 | 15.7 °C |
| 24 Jun 2024, 13:06 | 16.8 | 16.8 °C |
| 12 Mar 2024, 11:59 | 8.2 | 8.2 °C |
| 12 Feb 2024, 10:05 | 4.9 | 4.9 °C |
| 6 Dec 2023, 11:36 | 3.3 | 3.3 °C |
| 16 Nov 2023, 11:44 | 7.3 | 7.3 °C |
| 3 Oct 2023, 11:20 | 13 | 13 °C |
pH
code 0061
7.73
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 7.73 | 7.73 |
| 13 Apr 2026, 10:22 | 7.63 | 7.63 |
| 10 Mar 2026, 12:22 | 7.41 | 7.41 |
| 13 Feb 2026, 08:32 | 7.25 | 7.25 |
| 7 Jan 2026, 09:39 | 7.77 | 7.77 |
| 11 Dec 2025, 10:14 | 7.27 | 7.27 |
| 7 Nov 2025, 12:49 | 7.58 | 7.58 |
| 10 Oct 2025, 10:29 | 7.86 | 7.86 |
| 1 Sep 2025, 11:45 | 8.01 | 8.01 |
| 4 Aug 2025, 11:39 | 7.91 | 7.91 |
| 1 Jul 2025, 10:27 | 7.7 | 7.7 |
| 13 Jun 2025, 11:02 | 7.92 | 7.92 |
| 1 May 2025, 11:15 | 7.74 | 7.74 |
| 3 Apr 2025, 11:11 | 7.61 | 7.61 |
| 11 Mar 2025, 10:27 | 7.47 | 7.47 |
| 13 Feb 2025, 11:48 | 7.5 | 7.5 |
| 23 Jan 2025, 09:48 | 7.19 | 7.19 |
| 5 Dec 2024, 10:56 | 7.12 | 7.12 |
| 18 Nov 2024, 10:39 | 7.28 | 7.28 |
| 18 Sep 2024, 10:49 | 7.33 | 7.33 |
| 22 Aug 2024, 14:01 | 7.79 | 7.79 |
| 17 Jul 2024, 12:25 | 7.36 | 7.36 |
| 24 Jun 2024, 13:06 | 7.53 | 7.53 |
| 12 Mar 2024, 11:59 | 7.19 | 7.19 |
| 12 Feb 2024, 10:05 | 7.17 | 7.17 |
| 6 Dec 2023, 11:36 | 6.95 | 6.95 |
| 16 Nov 2023, 11:44 | 7.25 | 7.25 |
| 3 Oct 2023, 11:20 | 7.15 | 7.15 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Apr 2026, 10:22 | 0.06 | 0.06 mg/l |
| 10 Mar 2026, 12:22 | 0.12 | 0.12 mg/l |
| 13 Feb 2026, 08:32 | 0.13 | 0.13 mg/l |
| 7 Jan 2026, 09:39 | 0.34 | 0.34 mg/l |
| 11 Dec 2025, 10:14 | 0.12 | 0.12 mg/l |
| 7 Nov 2025, 12:49 | 0.18 | 0.18 mg/l |
| 10 Oct 2025, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Sep 2025, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Aug 2025, 11:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2025, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Jun 2025, 11:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2025, 11:15 | 0.066 | 0.066 mg/l |
| 3 Apr 2025, 11:11 | 0.064 | 0.064 mg/l |
| 11 Mar 2025, 10:27 | 0.073 | 0.073 mg/l |
| 13 Feb 2025, 11:48 | 0.12 | 0.12 mg/l |
| 23 Jan 2025, 09:48 | 0.12 | 0.12 mg/l |
| 5 Dec 2024, 10:56 | 0.08 | 0.08 mg/l |
| 18 Nov 2024, 10:39 | 0.097 | 0.097 mg/l |
| 18 Sep 2024, 10:49 | 0.04 | 0.04 mg/l |
| 22 Aug 2024, 14:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 12:25 | 0.14 | 0.14 mg/l |
| 24 Jun 2024, 13:06 | 0.067 | 0.067 mg/l |
| 12 Mar 2024, 11:59 | 0.12 | 0.12 mg/l |
| 12 Feb 2024, 10:05 | 0.08 | 0.08 mg/l |
| 6 Dec 2023, 11:36 | 0.14 | 0.14 mg/l |
| 16 Nov 2023, 11:44 | 0.064 | 0.064 mg/l |
| 3 Oct 2023, 11:20 | 0.21 | 0.21 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.88 mg/l
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 2.88 | 2.88 mg/l |
| 13 Apr 2026, 10:22 | 3.19 | 3.19 mg/l |
| 10 Mar 2026, 12:22 | 3.18 | 3.18 mg/l |
| 13 Feb 2026, 08:32 | 2.69 | 2.69 mg/l |
| 7 Jan 2026, 09:39 | 3.98 | 3.98 mg/l |
| 11 Dec 2025, 10:14 | 3.58 | 3.58 mg/l |
| 7 Nov 2025, 12:49 | 2.55 | 2.55 mg/l |
| 10 Oct 2025, 10:29 | 2.99 | 2.99 mg/l |
| 1 Sep 2025, 11:45 | 3.39 | 3.39 mg/l |
| 4 Aug 2025, 11:39 | 3.49 | 3.49 mg/l |
| 1 Jul 2025, 10:27 | 3.58 | 3.58 mg/l |
| 13 Jun 2025, 11:02 | 3.57 | 3.57 mg/l |
| 1 May 2025, 11:15 | 3.47 | 3.47 mg/l |
| 3 Apr 2025, 11:11 | 3.68 | 3.68 mg/l |
| 11 Mar 2025, 10:27 | 3.58 | 3.58 mg/l |
| 13 Feb 2025, 11:48 | 3.68 | 3.68 mg/l |
| 23 Jan 2025, 09:48 | 3.78 | 3.78 mg/l |
| 5 Dec 2024, 10:56 | 2.99 | 2.99 mg/l |
| 18 Nov 2024, 10:39 | 3.07 | 3.07 mg/l |
| 18 Sep 2024, 10:49 | 2.59 | 2.59 mg/l |
| 22 Aug 2024, 14:01 | 3.98 | 3.98 mg/l |
| 17 Jul 2024, 12:25 | 2.85 | 2.85 mg/l |
| 24 Jun 2024, 13:06 | 3.5 | 3.5 mg/l |
| 12 Mar 2024, 11:59 | 3.07 | 3.07 mg/l |
| 12 Feb 2024, 10:05 | 3.09 | 3.09 mg/l |
| 6 Dec 2023, 11:36 | 3.79 | 3.79 mg/l |
| 16 Nov 2023, 11:44 | 3.69 | 3.69 mg/l |
| 3 Oct 2023, 11:20 | 5.15 | 5.15 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 0.11 | 0.11 mg/l |
| 13 Apr 2026, 10:22 | 0.065 | 0.065 mg/l |
| 10 Mar 2026, 12:22 | 0.064 | 0.064 mg/l |
| 13 Feb 2026, 08:32 | 0.083 | 0.083 mg/l |
| 7 Jan 2026, 09:39 | 0.2 | 0.2 mg/l |
| 11 Dec 2025, 10:14 | 0.082 | 0.082 mg/l |
| 7 Nov 2025, 12:49 | 0.037 | 0.037 mg/l |
| 10 Oct 2025, 10:29 | 0.029 | 0.029 mg/l |
| 1 Sep 2025, 11:45 | 0.041 | 0.041 mg/l |
| 4 Aug 2025, 11:39 | 0.061 | 0.061 mg/l |
| 1 Jul 2025, 10:27 | 0.3 | 0.3 mg/l |
| 13 Jun 2025, 11:02 | 0.055 | 0.055 mg/l |
| 1 May 2025, 11:15 | 0.048 | 0.048 mg/l |
| 3 Apr 2025, 11:11 | 0.047 | 0.047 mg/l |
| 11 Mar 2025, 10:27 | 0.074 | 0.074 mg/l |
| 13 Feb 2025, 11:48 | 0.2 | 0.2 mg/l |
| 23 Jan 2025, 09:48 | 0.1 | 0.1 mg/l |
| 5 Dec 2024, 10:56 | 0.14 | 0.14 mg/l |
| 18 Nov 2024, 10:39 | 0.057 | 0.057 mg/l |
| 18 Sep 2024, 10:49 | 0.063 | 0.063 mg/l |
| 22 Aug 2024, 14:01 | 0.043 | 0.043 mg/l |
| 17 Jul 2024, 12:25 | 0.11 | 0.11 mg/l |
| 24 Jun 2024, 13:06 | 0.064 | 0.064 mg/l |
| 12 Mar 2024, 11:59 | 0.12 | 0.12 mg/l |
| 12 Feb 2024, 10:05 | 0.36 | 0.36 mg/l |
| 6 Dec 2023, 11:36 | 0.14 | 0.14 mg/l |
| 16 Nov 2023, 11:44 | 0.14 | 0.14 mg/l |
| 3 Oct 2023, 11:20 | 0.085 | 0.085 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
595 µS/cm
Sampled 28 May 2026, 4 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 11:15 | 595 | 595 µS/cm |
| 13 Apr 2026, 10:22 | 512 | 512 µS/cm |
| 10 Mar 2026, 12:22 | 480 | 480 µS/cm |
| 13 Feb 2026, 08:32 | 349 | 349 µS/cm |
| 7 Jan 2026, 09:39 | 494 | 494 µS/cm |
| 11 Dec 2025, 10:14 | 381 | 381 µS/cm |
| 7 Nov 2025, 12:49 | 630 | 630 µS/cm |
| 10 Oct 2025, 10:29 | 694 | 694 µS/cm |
| 1 Sep 2025, 11:45 | 733 | 733 µS/cm |
| 4 Aug 2025, 11:39 | 713 | 713 µS/cm |
| 1 Jul 2025, 10:27 | 697 | 697 µS/cm |
| 13 Jun 2025, 11:02 | 654 | 654 µS/cm |
| 1 May 2025, 11:15 | 597 | 597 µS/cm |
| 3 Apr 2025, 11:11 | 560 | 560 µS/cm |
| 11 Mar 2025, 10:27 | 483 | 483 µS/cm |
| 13 Feb 2025, 11:48 | 473 | 473 µS/cm |
| 23 Jan 2025, 09:48 | 476 | 476 µS/cm |
| 5 Dec 2024, 10:56 | 399 | 399 µS/cm |
| 18 Nov 2024, 10:39 | 495 | 495 µS/cm |
| 18 Sep 2024, 10:49 | 503 | 503 µS/cm |
| 22 Aug 2024, 14:01 | 661 | 661 µS/cm |
| 17 Jul 2024, 12:25 | 448 | 448 µS/cm |
| 24 Jun 2024, 13:06 | 590 | 590 µS/cm |
| 12 Mar 2024, 11:59 | 405 | 405 µS/cm |
| 12 Feb 2024, 10:05 | 347 | 347 µS/cm |
| 6 Dec 2023, 11:36 | 348 | 348 µS/cm |
| 16 Nov 2023, 11:44 | 389 | 389 µS/cm |
| 3 Oct 2023, 11:20 | 540 | 540 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 | 28 | Oct 2023 – May 2026 | 79.2% 28 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Oct 2023 – May 2026 | 7.54 mg/l 28 May 2026 |
| Temperature of Water 0076 | River water | 28 | Oct 2023 – May 2026 | 17.6 °C 28 May 2026 |
| pH 0061 | River water | 28 | Oct 2023 – May 2026 | 7.73 28 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Oct 2023 – May 2026 | below 0.03 mg/l 28 May 2026 |
| Nitrate as N 0117 | River water | 28 | Oct 2023 – May 2026 | 2.88 mg/l 28 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Oct 2023 – May 2026 | 0.11 mg/l 28 May 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Oct 2023 – May 2026 | 595 µS/cm 28 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Dec 2024 – Dec 2024 | below 0.004 µg/l 5 Dec 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Dec 2024 – Dec 2024 | below 0.005 µg/l 5 Dec 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – May 2026 | 220 mg/l 28 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Oct 2023 – May 2026 | below 0.00052 mg/l 28 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.4 mg/l 28 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| Nitrite as N 0118 | River water | 28 | Oct 2023 – May 2026 | 0.023 mg/l 28 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Oct 2023 – May 2026 | 2.9 mg/l 28 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Dec 2024 – Dec 2024 | 0.0012 µg/l 5 Dec 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Dec 2024 – Dec 2024 | 0.0041 µg/l 5 Dec 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Dec 2024 – Dec 2024 | below 0.005 µg/l 5 Dec 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Dec 2024 – Dec 2024 | 0.00081 µg/l 5 Dec 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Dec 2024 – Dec 2024 | 0.0011 µg/l 5 Dec 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Dec 2024 – Dec 2024 | below 0.0005 µg/l 5 Dec 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Dec 2024 – Dec 2024 | below 0.001 µg/l 5 Dec 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Dec 2024 – Dec 2024 | below 0.006 µg/l 5 Dec 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Dec 2024 – Dec 2024 | below 0.005 µg/l 5 Dec 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Dec 2024 – Dec 2024 | below 0.004 µg/l 5 Dec 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Dec 2024 – Dec 2024 | below 0.002 µg/l 5 Dec 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.