Dudgrove Stream at Gate 7, RAF Fairford
EA name: DUDGROVE STREAM AT GATE 7, RAF FAIRFORD
Environment Agency sampling point TH-PUTR0048 · 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
- 12 May 2026, 12:185 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
- 26 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 416395, 198171As published, to the nearest 1 m. Open in a map
- River, by its own name
- Dudgrove Stream
- River, by the map
- Not placedTwo watercourses within reach (2 m and 6 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (26 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.1%
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 95.1 | 95.1% |
| 13 Apr 2026, 14:10 | 99.1 | 99.1% |
| 26 Mar 2026, 11:02 | 94.8 | 94.8% |
| 5 Feb 2026, 10:29 | 89.9 | 89.9% |
| 7 Jan 2026, 11:28 | 94.6 | 94.6% |
| 10 Dec 2025, 12:21 | 85.4 | 85.4% |
| 17 Mar 2025, 11:14 | 94.8 | 94.8% |
| 6 Feb 2025, 13:35 | 99 | 99% |
| 22 Jan 2025, 10:15 | 98.5 | 98.5% |
| 16 Dec 2024, 09:39 | 93.3 | 93.3% |
| 29 Nov 2024, 10:00 | 91.7 | 91.7% |
| 14 Oct 2024, 10:51 | 92.8 | 92.8% |
| 27 Sep 2024, 10:43 | 80.2 | 80.2% |
| 21 Aug 2024, 13:25 | 86.4 | 86.4% |
| 15 Jul 2024, 12:03 | 87.7 | 87.7% |
| 18 Jun 2024, 10:38 | 92.7 | 92.7% |
| 20 May 2024, 11:11 | 93.2 | 93.2% |
| 16 Apr 2024, 09:24 | 94.4 | 94.4% |
| 19 Mar 2024, 11:10 | 95.9 | 95.9% |
| 23 Feb 2024, 10:42 | 91.4 | 91.4% |
| 15 Jan 2024, 09:23 | 95.5 | 95.5% |
| 11 Dec 2023, 10:30 | 88.2 | 88.2% |
| 27 Nov 2023, 09:38 | 88 | 88% |
| 9 Nov 2023, 12:50 | 88.5 | 88.5% |
| 20 Oct 2023, 08:42 | 90.8 | 90.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.2 mg/l
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 10.2 | 10.2 mg/l |
| 13 Apr 2026, 14:10 | 11 | 11 mg/l |
| 26 Mar 2026, 11:02 | 10.9 | 10.9 mg/l |
| 5 Feb 2026, 10:29 | 10.7 | 10.7 mg/l |
| 7 Jan 2026, 11:28 | 11.9 | 11.9 mg/l |
| 10 Dec 2025, 12:21 | 9.67 | 9.67 mg/l |
| 17 Mar 2025, 11:14 | 11.5 | 11.5 mg/l |
| 6 Feb 2025, 13:35 | 12.3 | 12.3 mg/l |
| 22 Jan 2025, 10:15 | 12.3 | 12.3 mg/l |
| 16 Dec 2024, 09:39 | 10.7 | 10.7 mg/l |
| 29 Nov 2024, 10:00 | 11 | 11 mg/l |
| 14 Oct 2024, 10:51 | 10.2 | 10.2 mg/l |
| 27 Sep 2024, 10:43 | 8.35 | 8.35 mg/l |
| 21 Aug 2024, 13:25 | 8.4 | 8.4 mg/l |
| 15 Jul 2024, 12:03 | 8.78 | 8.78 mg/l |
| 18 Jun 2024, 10:38 | 9.4 | 9.4 mg/l |
| 20 May 2024, 11:11 | 9.23 | 9.23 mg/l |
| 16 Apr 2024, 09:24 | 10.5 | 10.5 mg/l |
| 19 Mar 2024, 11:10 | 10.6 | 10.6 mg/l |
| 23 Feb 2024, 10:42 | 10.9 | 10.9 mg/l |
| 15 Jan 2024, 09:23 | 12.2 | 12.2 mg/l |
| 11 Dec 2023, 10:30 | 10.3 | 10.3 mg/l |
| 27 Nov 2023, 09:38 | 10.2 | 10.2 mg/l |
| 9 Nov 2023, 12:50 | 9.88 | 9.88 mg/l |
| 20 Oct 2023, 08:42 | 9.44 | 9.44 mg/l |
Water temperature
code 0076 · °C
12.1 °C
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 12.1 | 12.1 °C |
| 13 Apr 2026, 14:10 | 10.8 | 10.8 °C |
| 26 Mar 2026, 11:02 | 9.2 | 9.2 °C |
| 5 Feb 2026, 10:29 | 7.6 | 7.6 °C |
| 7 Jan 2026, 11:28 | 5.5 | 5.5 °C |
| 10 Dec 2025, 12:21 | 9.8 | 9.8 °C |
| 17 Mar 2025, 11:14 | 7 | 7 °C |
| 6 Feb 2025, 13:35 | 6 | 6 °C |
| 22 Jan 2025, 10:15 | 5.9 | 5.9 °C |
| 16 Dec 2024, 09:39 | 9.1 | 9.1 °C |
| 29 Nov 2024, 10:00 | 7.6 | 7.6 °C |
| 14 Oct 2024, 10:51 | 10.9 | 10.9 °C |
| 27 Sep 2024, 10:43 | 13.4 | 13.4 °C |
| 21 Aug 2024, 13:25 | 16.6 | 16.6 °C |
| 15 Jul 2024, 12:03 | 15.2 | 15.2 °C |
| 18 Jun 2024, 10:38 | 14.6 | 14.6 °C |
| 20 May 2024, 11:11 | 15.7 | 15.7 °C |
| 16 Apr 2024, 09:24 | 10.6 | 10.6 °C |
| 19 Mar 2024, 11:10 | 10.9 | 10.9 °C |
| 23 Feb 2024, 10:42 | 7.8 | 7.8 °C |
| 15 Jan 2024, 09:23 | 4.9 | 4.9 °C |
| 11 Dec 2023, 10:30 | 8.5 | 8.5 °C |
| 27 Nov 2023, 09:38 | 9 | 9 °C |
| 9 Nov 2023, 12:50 | 10.4 | 10.4 °C |
| 20 Oct 2023, 08:42 | 13.5 | 13.5 °C |
pH
code 0061
8.18
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 8.18 | 8.18 |
| 13 Apr 2026, 14:10 | 7.88 | 7.88 |
| 26 Mar 2026, 11:02 | 7.92 | 7.92 |
| 5 Feb 2026, 10:29 | 7.89 | 7.89 |
| 7 Jan 2026, 11:28 | 8.06 | 8.06 |
| 10 Dec 2025, 12:21 | 7.8 | 7.8 |
| 17 Mar 2025, 11:14 | 7.94 | 7.94 |
| 6 Feb 2025, 13:35 | 8.03 | 8.03 |
| 22 Jan 2025, 10:15 | 8.01 | 8.01 |
| 16 Dec 2024, 09:39 | 8.03 | 8.03 |
| 29 Nov 2024, 10:00 | 7.83 | 7.83 |
| 14 Oct 2024, 10:51 | 7.85 | 7.85 |
| 27 Sep 2024, 10:43 | 7.65 | 7.65 |
| 21 Aug 2024, 13:25 | 7.86 | 7.86 |
| 15 Jul 2024, 12:03 | 7.83 | 7.83 |
| 18 Jun 2024, 10:38 | 7.87 | 7.87 |
| 20 May 2024, 11:11 | 7.87 | 7.87 |
| 16 Apr 2024, 09:24 | 7.95 | 7.95 |
| 19 Mar 2024, 11:10 | 7.9 | 7.9 |
| 23 Feb 2024, 10:42 | 8.03 | 8.03 |
| 15 Jan 2024, 09:23 | 8.11 | 8.11 |
| 11 Dec 2023, 10:30 | 7.77 | 7.77 |
| 27 Nov 2023, 09:38 | 7.84 | 7.84 |
| 9 Nov 2023, 12:50 | 7.95 | 7.95 |
| 20 Oct 2023, 08:42 | 7.67 | 7.67 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Apr 2026, 14:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2026, 11:02 | 0.06 | 0.06 mg/l |
| 5 Feb 2026, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 11:28 | 0.26 | 0.26 mg/l |
| 10 Dec 2025, 12:21 | 0.064 | 0.064 mg/l |
| 17 Mar 2025, 11:14 | 0.11 | 0.11 mg/l |
| 6 Feb 2025, 13:35 | 0.074 | 0.074 mg/l |
| 22 Jan 2025, 10:15 | 0.071 | 0.071 mg/l |
| 16 Dec 2024, 09:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Nov 2024, 10:00 | 0.064 | 0.064 mg/l |
| 14 Oct 2024, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Sep 2024, 10:43 | 0.042 | 0.042 mg/l |
| 21 Aug 2024, 13:25 | 0.057 | 0.057 mg/l |
| 15 Jul 2024, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jun 2024, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 May 2024, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2024, 09:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Feb 2024, 10:42 | 0.045 | 0.045 mg/l |
| 15 Jan 2024, 09:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Dec 2023, 10:30 | 0.095 | 0.095 mg/l |
| 27 Nov 2023, 09:38 | 0.13 | 0.13 mg/l |
| 9 Nov 2023, 12:50 | 0.11 | 0.11 mg/l |
| 20 Oct 2023, 08:42 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 1.4 | 1.4 mg/l |
| 13 Apr 2026, 14:10 | 2.3 | 2.3 mg/l |
| 26 Mar 2026, 11:02 | 2.78 | 2.78 mg/l |
| 5 Feb 2026, 10:29 | 3.49 | 3.49 mg/l |
| 7 Jan 2026, 11:28 | 3.08 | 3.08 mg/l |
| 10 Dec 2025, 12:21 | 3.47 | 3.47 mg/l |
| 17 Mar 2025, 11:14 | 1.39 | 1.39 mg/l |
| 6 Feb 2025, 13:35 | 2.99 | 2.99 mg/l |
| 22 Jan 2025, 10:15 | 2.79 | 2.79 mg/l |
| 16 Dec 2024, 09:39 | 2.89 | 2.89 mg/l |
| 29 Nov 2024, 10:00 | 2.47 | 2.47 mg/l |
| 14 Oct 2024, 10:51 | 1.39 | 1.39 mg/l |
| 27 Sep 2024, 10:43 | 1.19 | 1.19 mg/l |
| 21 Aug 2024, 13:25 | 1.19 | 1.19 mg/l |
| 15 Jul 2024, 12:03 | 1.79 | 1.79 mg/l |
| 18 Jun 2024, 10:38 | 1.89 | 1.89 mg/l |
| 20 May 2024, 11:11 | 1.49 | 1.49 mg/l |
| 16 Apr 2024, 09:24 | 1.89 | 1.89 mg/l |
| 19 Mar 2024, 11:10 | 2.19 | 2.19 mg/l |
| 23 Feb 2024, 10:42 | 2.19 | 2.19 mg/l |
| 15 Jan 2024, 09:23 | 3.59 | 3.59 mg/l |
| 11 Dec 2023, 10:30 | 2.67 | 2.67 mg/l |
| 27 Nov 2023, 09:38 | 2.37 | 2.37 mg/l |
| 9 Nov 2023, 12:50 | 2.26 | 2.26 mg/l |
| 20 Oct 2023, 08:42 | 1.47 | 1.47 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.025 mg/l
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 0.025 | 0.025 mg/l |
| 13 Apr 2026, 14:10 | 0.044 | 0.044 mg/l |
| 26 Mar 2026, 11:02 | 0.048 | 0.048 mg/l |
| 5 Feb 2026, 10:29 | 0.026 | 0.026 mg/l |
| 7 Jan 2026, 11:28 | 0.045 | 0.045 mg/l |
| 10 Dec 2025, 12:21 | 0.059 | 0.059 mg/l |
| 17 Mar 2025, 11:14 | 0.018 | 0.018 mg/l |
| 6 Feb 2025, 13:35 | 0.021 | 0.021 mg/l |
| 22 Jan 2025, 10:15 | 0.032 | 0.032 mg/l |
| 16 Dec 2024, 09:39 | 0.036 | 0.036 mg/l |
| 29 Nov 2024, 10:00 | 0.031 | 0.031 mg/l |
| 14 Oct 2024, 10:51 | 0.048 | 0.048 mg/l |
| 27 Sep 2024, 10:43 | 0.088 | 0.088 mg/l |
| 21 Aug 2024, 13:25 | 0.022 | 0.022 mg/l |
| 15 Jul 2024, 12:03 | 0.034 | 0.034 mg/l |
| 18 Jun 2024, 10:38 | 0.053 | 0.053 mg/l |
| 20 May 2024, 11:11 | 0.036 | 0.036 mg/l |
| 16 Apr 2024, 09:24 | 0.031 | 0.031 mg/l |
| 19 Mar 2024, 11:10 | 0.022 | 0.022 mg/l |
| 23 Feb 2024, 10:42 | 0.02 | 0.02 mg/l |
| 15 Jan 2024, 09:23 | 0.026 | 0.026 mg/l |
| 11 Dec 2023, 10:30 | 0.041 | 0.041 mg/l |
| 27 Nov 2023, 09:38 | 0.039 | 0.039 mg/l |
| 9 Nov 2023, 12:50 | 0.041 | 0.041 mg/l |
| 20 Oct 2023, 08:42 | 0.047 | 0.047 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
494 µS/cm
Sampled 12 May 2026, 5 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 12:18 | 494 | 494 µS/cm |
| 13 Apr 2026, 14:10 | 513 | 513 µS/cm |
| 26 Mar 2026, 11:02 | 564 | 564 µS/cm |
| 5 Feb 2026, 10:29 | 549 | 549 µS/cm |
| 7 Jan 2026, 11:28 | 561 | 561 µS/cm |
| 10 Dec 2025, 12:21 | 550 | 550 µS/cm |
| 17 Mar 2025, 11:14 | 432 | 432 µS/cm |
| 6 Feb 2025, 13:35 | 537 | 537 µS/cm |
| 22 Jan 2025, 10:15 | 534 | 534 µS/cm |
| 16 Dec 2024, 09:39 | 547 | 547 µS/cm |
| 29 Nov 2024, 10:00 | 514 | 514 µS/cm |
| 14 Oct 2024, 10:51 | 353 | 353 µS/cm |
| 27 Sep 2024, 10:43 | 419 | 419 µS/cm |
| 21 Aug 2024, 13:25 | 515 | 515 µS/cm |
| 15 Jul 2024, 12:03 | 513 | 513 µS/cm |
| 18 Jun 2024, 10:38 | 483 | 483 µS/cm |
| 20 May 2024, 11:11 | 459 | 459 µS/cm |
| 16 Apr 2024, 09:24 | 520 | 520 µS/cm |
| 19 Mar 2024, 11:10 | 513 | 513 µS/cm |
| 23 Feb 2024, 10:42 | 493 | 493 µS/cm |
| 15 Jan 2024, 09:23 | 558 | 558 µS/cm |
| 11 Dec 2023, 10:30 | 545 | 545 µS/cm |
| 27 Nov 2023, 09:38 | 502 | 502 µS/cm |
| 9 Nov 2023, 12:50 | 518 | 518 µS/cm |
| 20 Oct 2023, 08:42 | 243 | 243 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 | 25 | Oct 2023 – May 2026 | 95.1% 12 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 25 | Oct 2023 – May 2026 | 10.2 mg/l 12 May 2026 |
| Temperature of Water 0076 | River water | 25 | Oct 2023 – May 2026 | 12.1 °C 12 May 2026 |
| pH 0061 | River water | 25 | Oct 2023 – May 2026 | 8.18 12 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Oct 2023 – May 2026 | below 0.03 mg/l 12 May 2026 |
| Nitrate as N 0117 | River water | 25 | Oct 2023 – May 2026 | 1.4 mg/l 12 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 25 | Oct 2023 – May 2026 | 0.025 mg/l 12 May 2026 |
| Conductivity at 25 C 0077 | River water | 25 | Oct 2023 – May 2026 | 494 µS/cm 12 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | Oct 2023 – Apr 2025 | below 0.004 µg/l 8 Apr 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | Oct 2023 – Apr 2025 | below 0.005 µg/l 8 Apr 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | Oct 2023 – Apr 2025 | 0.015 µg/l 8 Apr 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | Oct 2023 – Apr 2025 | 0.0032 µg/l 8 Apr 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Oct 2023 – May 2026 | 200 mg/l 12 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 25 | Oct 2023 – May 2026 | below 0.00064 mg/l 12 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Feb 2024 – May 2026 | 1.1 mg/l 12 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| Nitrite as N 0118 | River water | 25 | Oct 2023 – May 2026 | below 0.004 mg/l 12 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Oct 2023 – May 2026 | 1.4 mg/l 12 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | Oct 2023 – Apr 2025 | 0.0025 µg/l 8 Apr 2025 |
| Perfluorobutanoic acid 2995 | River water | 4 | Oct 2023 – Apr 2025 | 0.01 µg/l 8 Apr 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | Oct 2023 – Apr 2025 | 0.0015 µg/l 8 Apr 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| Perfluorodecanoic acid 8892 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | Oct 2023 – Apr 2025 | below 0.005 µg/l 8 Apr 2025 |
| Perfluorododecanoic acid 8894 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | Oct 2023 – Apr 2025 | 0.0014 µg/l 8 Apr 2025 |
| Perfluoroheptanoic acid 8889 | River water | 4 | Oct 2023 – Apr 2025 | 0.013 µg/l 8 Apr 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | Oct 2023 – Apr 2025 | 0.015 µg/l 8 Apr 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | Oct 2023 – Apr 2025 | 0.0061 µg/l 8 Apr 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | Oct 2023 – Apr 2025 | 0.035 µg/l 8 Apr 2025 |
| Perfluorohexanoic acid 8888 | River water | 4 | Oct 2023 – Apr 2025 | 0.02 µg/l 8 Apr 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | Oct 2023 – Apr 2025 | below 0.0005 µg/l 8 Apr 2025 |
| Perfluorononanoic acid 8891 | River water | 4 | Oct 2023 – Apr 2025 | 0.0012 µg/l 8 Apr 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | Oct 2023 – Apr 2025 | below 0.001 µg/l 8 Apr 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | Oct 2023 – Apr 2025 | 0.035 µg/l 8 Apr 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | Oct 2023 – Apr 2025 | 0.091 µg/l 8 Apr 2025 |
| Perfluorooctanoic acid 8890 | River water | 4 | Oct 2023 – Apr 2025 | 0.0094 µg/l 8 Apr 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | Oct 2023 – Apr 2025 | 0.0027 µg/l 8 Apr 2025 |
| Perfluoropentanoic acid 8887 | River water | 4 | Oct 2023 – Apr 2025 | 0.027 µg/l 8 Apr 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | Oct 2023 – Apr 2025 | below 0.006 µg/l 8 Apr 2025 |
| Perfluorotridecanoic acid 2955 | River water | 4 | Oct 2023 – Apr 2025 | below 0.005 µg/l 8 Apr 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | Oct 2023 – Apr 2025 | below 0.004 µg/l 8 Apr 2025 |
| Perfluoroundecanoic acid 8893 | River water | 4 | Oct 2023 – Apr 2025 | below 0.002 µg/l 8 Apr 2025 |
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.