River Churnet - Wall Bridge Leek
EA name: RIVER CHURNET - WALL BRIDGE LEEK
Environment Agency sampling point MD-56090180 · 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
- 18 Sep 2026, 10:4013 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 22 since 5 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives) · results completed 22 Sep 2026
- Where
- National Grid 397400, 355310As published, to the nearest 10 m. Open in a map
- River, by its own name
- Churnet
- River, by the map
- River ChurnetPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Flint Mill On the River Churnet · 6.0 km along the river
- Nearest gauge upstream
- Leek On the River Churnet · 6.5 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (22 samples)
Results here were completed a median of 4 days after the sample was taken (3 to 5 days, 6 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.3%
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 91.3 | 91.3% |
| 20 Aug 2026, 12:30 | 87.5 | 87.5% |
| 13 Jul 2026, 14:22 | 93.3 | 93.3% |
| 22 Jun 2026, 17:40 | 92.5 | 92.5% |
| 8 May 2026, 10:26 | 96.6 | 96.6% |
| 8 Apr 2026, 11:59 | 97.7 | 97.7% |
| 31 Mar 2025, 11:39 | 96.5 | 96.5% |
| 14 Feb 2025, 07:40 | 91.1 | 91.1% |
| 13 Jan 2025, 10:07 | 94 | 94% |
| 6 Dec 2024, 12:18 | 96.3 | 96.3% |
| 6 Nov 2024, 12:00 | 81.5 | 81.5% |
| 2 Oct 2024, 08:27 | 92.6 | 92.6% |
| 3 Sep 2024, 11:13 | 90.3 | 90.3% |
| 8 Aug 2024, 11:54 | 87.1 | 87.1% |
| 2 Jul 2024, 09:44 | 84.7 | 84.7% |
| 11 Jun 2024, 08:26 | 83.1 | 83.1% |
| 7 Mar 2024, 11:00 | 95.2 | 95.2% |
| 7 Feb 2024, 11:27 | 95.5 | 95.5% |
| 3 Jan 2024, 10:20 | 89.4 | 89.4% |
| 7 Dec 2023, 08:48 | 93.1 | 93.1% |
| 3 Nov 2023, 08:05 | 87.9 | 87.9% |
| 5 Oct 2023, 09:05 | 78.9 | 78.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.41 mg/l
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 9.41 | 9.41 mg/l |
| 20 Aug 2026, 12:30 | 8.49 | 8.49 mg/l |
| 13 Jul 2026, 14:22 | 8.69 | 8.69 mg/l |
| 22 Jun 2026, 17:40 | 8.7 | 8.7 mg/l |
| 8 May 2026, 10:26 | 10.4 | 10.4 mg/l |
| 8 Apr 2026, 11:59 | 11 | 11 mg/l |
| 31 Mar 2025, 11:39 | 11.4 | 11.4 mg/l |
| 14 Feb 2025, 07:40 | 12.2 | 12.2 mg/l |
| 13 Jan 2025, 10:07 | 12.5 | 12.5 mg/l |
| 6 Dec 2024, 12:18 | 11.7 | 11.7 mg/l |
| 6 Nov 2024, 12:00 | 9.03 | 9.03 mg/l |
| 2 Oct 2024, 08:27 | 10.2 | 10.2 mg/l |
| 3 Sep 2024, 11:13 | 8.98 | 8.98 mg/l |
| 8 Aug 2024, 11:54 | 8.74 | 8.74 mg/l |
| 2 Jul 2024, 09:44 | 9 | 9 mg/l |
| 11 Jun 2024, 08:26 | 9.04 | 9.04 mg/l |
| 7 Mar 2024, 11:00 | 11.9 | 11.9 mg/l |
| 7 Feb 2024, 11:27 | 12.1 | 12.1 mg/l |
| 3 Jan 2024, 10:20 | 10.9 | 10.9 mg/l |
| 7 Dec 2023, 08:48 | 11.8 | 11.8 mg/l |
| 3 Nov 2023, 08:05 | 9.93 | 9.93 mg/l |
| 5 Oct 2023, 09:05 | 8.29 | 8.29 mg/l |
Water temperature
code 0076 · °C
13.9 °C
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 13.9 | 13.9 °C |
| 20 Aug 2026, 12:30 | 16.7 | 16.7 °C |
| 13 Jul 2026, 14:22 | 18.7 | 18.7 °C |
| 22 Jun 2026, 17:40 | 18.2 | 18.2 °C |
| 8 May 2026, 10:26 | 11.8 | 11.8 °C |
| 8 Apr 2026, 11:59 | 10 | 10 °C |
| 31 Mar 2025, 11:39 | 8 | 8 °C |
| 14 Feb 2025, 07:40 | 3.1 | 3.1 °C |
| 13 Jan 2025, 10:07 | 3.3 | 3.3 °C |
| 6 Dec 2024, 12:18 | 6.8 | 6.8 °C |
| 6 Nov 2024, 12:00 | 10.7 | 10.7 °C |
| 2 Oct 2024, 08:27 | 11.1 | 11.1 °C |
| 3 Sep 2024, 11:13 | 15.5 | 15.5 °C |
| 8 Aug 2024, 11:54 | 15.1 | 15.1 °C |
| 2 Jul 2024, 09:44 | 12.5 | 12.5 °C |
| 11 Jun 2024, 08:26 | 11.5 | 11.5 °C |
| 7 Mar 2024, 11:00 | 5.9 | 5.9 °C |
| 7 Feb 2024, 11:27 | 5.2 | 5.2 °C |
| 3 Jan 2024, 10:20 | 6.6 | 6.6 °C |
| 7 Dec 2023, 08:48 | 5.1 | 5.1 °C |
| 3 Nov 2023, 08:05 | 9.9 | 9.9 °C |
| 5 Oct 2023, 09:05 | 13 | 13 °C |
pH
code 0061
7.71
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 7.71 | 7.71 |
| 20 Aug 2026, 12:30 | 7.67 | 7.67 |
| 13 Jul 2026, 14:22 | 7.57 | 7.57 |
| 22 Jun 2026, 17:40 | 7.4 | 7.4 |
| 8 May 2026, 10:26 | 7.71 | 7.71 |
| 8 Apr 2026, 11:59 | 7.91 | 7.91 |
| 31 Mar 2025, 11:39 | 7.86 | 7.86 |
| 14 Feb 2025, 07:40 | 7.61 | 7.61 |
| 13 Jan 2025, 10:07 | 7.75 | 7.75 |
| 6 Dec 2024, 12:18 | 7.72 | 7.72 |
| 6 Nov 2024, 12:00 | 7.37 | 7.37 |
| 2 Oct 2024, 08:27 | 7.65 | 7.65 |
| 3 Sep 2024, 11:13 | 7.46 | 7.46 |
| 8 Aug 2024, 11:54 | 7.66 | 7.66 |
| 2 Jul 2024, 09:44 | 7.75 | 7.75 |
| 11 Jun 2024, 08:26 | 7.58 | 7.58 |
| 7 Mar 2024, 11:00 | 7.61 | 7.61 |
| 7 Feb 2024, 11:27 | 7.54 | 7.54 |
| 3 Jan 2024, 10:20 | 7.35 | 7.35 |
| 7 Dec 2023, 08:48 | 7.65 | 7.65 |
| 3 Nov 2023, 08:05 | 7.25 | 7.25 |
| 5 Oct 2023, 09:05 | 7.45 | 7.45 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Aug 2026, 12:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Jul 2026, 14:22 | 0.048 | 0.048 mg/l |
| 22 Jun 2026, 17:40 | 0.16 | 0.16 mg/l |
| 8 May 2026, 10:26 | 0.037 | 0.037 mg/l |
| 8 Apr 2026, 11:59 | 0.042 | 0.042 mg/l |
| 31 Mar 2025, 11:39 | 0.054 | 0.054 mg/l |
| 14 Feb 2025, 07:40 | 0.13 | 0.13 mg/l |
| 13 Jan 2025, 10:07 | 0.14 | 0.14 mg/l |
| 6 Dec 2024, 12:18 | 0.053 | 0.053 mg/l |
| 6 Nov 2024, 12:00 | 0.08 | 0.08 mg/l |
| 2 Oct 2024, 08:27 | 0.022 | 0.022 mg/l |
| 3 Sep 2024, 11:13 | 0.094 | 0.094 mg/l |
| 8 Aug 2024, 11:54 | 0.049 | 0.049 mg/l |
| 2 Jul 2024, 09:44 | 0.05 | 0.05 mg/l |
| 11 Jun 2024, 08:26 | 0.049 | 0.049 mg/l |
| 7 Mar 2024, 11:00 | 0.065 | 0.065 mg/l |
| 7 Feb 2024, 11:27 | 0.087 | 0.087 mg/l |
| 3 Jan 2024, 10:20 | 0.18 | 0.18 mg/l |
| 7 Dec 2023, 08:48 | 0.065 | 0.065 mg/l |
| 3 Nov 2023, 08:05 | 0.11 | 0.11 mg/l |
| 5 Oct 2023, 09:05 | 0.076 | 0.076 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.19 mg/l
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 1.19 | 1.19 mg/l |
| 20 Aug 2026, 12:30 | 1.19 | 1.19 mg/l |
| 13 Jul 2026, 14:22 | 1.27 | 1.27 mg/l |
| 22 Jun 2026, 17:40 | 1.46 | 1.46 mg/l |
| 8 May 2026, 10:26 | 1.58 | 1.58 mg/l |
| 8 Apr 2026, 11:59 | 1.78 | 1.78 mg/l |
| 31 Mar 2025, 11:39 | 1.68 | 1.68 mg/l |
| 14 Feb 2025, 07:40 | 2.18 | 2.18 mg/l |
| 13 Jan 2025, 10:07 | 1.98 | 1.98 mg/l |
| 6 Dec 2024, 12:18 | 1.49 | 1.49 mg/l |
| 6 Nov 2024, 12:00 | 1.47 | 1.47 mg/l |
| 2 Oct 2024, 08:27 | 0.655 | 0.655 mg/l |
| 3 Sep 2024, 11:13 | 1.36 | 1.36 mg/l |
| 8 Aug 2024, 11:54 | 1.78 | 1.78 mg/l |
| 2 Jul 2024, 09:44 | 1.55 | 1.55 mg/l |
| 11 Jun 2024, 08:26 | 2.06 | 2.06 mg/l |
| 7 Mar 2024, 11:00 | 1.79 | 1.79 mg/l |
| 7 Feb 2024, 11:27 | 1.59 | 1.59 mg/l |
| 3 Jan 2024, 10:20 | 1.49 | 1.49 mg/l |
| 7 Dec 2023, 08:48 | 1.48 | 1.48 mg/l |
| 3 Nov 2023, 08:05 | 1.29 | 1.29 mg/l |
| 5 Oct 2023, 09:05 | 1.27 | 1.27 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.048 mg/l
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 0.048 | 0.048 mg/l |
| 20 Aug 2026, 12:30 | 0.12 | 0.12 mg/l |
| 13 Jul 2026, 14:22 | 0.27 | 0.27 mg/l |
| 22 Jun 2026, 17:40 | 0.41 | 0.41 mg/l |
| 8 May 2026, 10:26 | 0.025 | 0.025 mg/l |
| 8 Apr 2026, 11:59 | 0.026 | 0.026 mg/l |
| 31 Mar 2025, 11:39 | 0.027 | 0.027 mg/l |
| 14 Feb 2025, 07:40 | 0.043 | 0.043 mg/l |
| 13 Jan 2025, 10:07 | 0.046 | 0.046 mg/l |
| 6 Dec 2024, 12:18 | 0.05 | 0.05 mg/l |
| 6 Nov 2024, 12:00 | 0.046 | 0.046 mg/l |
| 2 Oct 2024, 08:27 | 0.037 | 0.037 mg/l |
| 3 Sep 2024, 11:13 | 0.063 | 0.063 mg/l |
| 8 Aug 2024, 11:54 | 0.058 | 0.058 mg/l |
| 2 Jul 2024, 09:44 | 0.031 | 0.031 mg/l |
| 11 Jun 2024, 08:26 | 0.047 | 0.047 mg/l |
| 7 Mar 2024, 11:00 | 0.025 | 0.025 mg/l |
| 7 Feb 2024, 11:27 | 0.036 | 0.036 mg/l |
| 3 Jan 2024, 10:20 | 0.053 | 0.053 mg/l |
| 7 Dec 2023, 08:48 | 0.026 | 0.026 mg/l |
| 3 Nov 2023, 08:05 | 0.044 | 0.044 mg/l |
| 5 Oct 2023, 09:05 | 0.05 | 0.05 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
253 µS/cm
Sampled 18 Sep 2026, 13 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 10:40 | 253 | 253 µS/cm |
| 20 Aug 2026, 12:30 | 236 | 236 µS/cm |
| 13 Jul 2026, 14:22 | 230 | 230 µS/cm |
| 22 Jun 2026, 17:40 | 234 | 234 µS/cm |
| 8 May 2026, 10:26 | 223 | 223 µS/cm |
| 8 Apr 2026, 11:59 | 246 | 246 µS/cm |
| 31 Mar 2025, 11:39 | 247 | 247 µS/cm |
| 14 Feb 2025, 07:40 | 267 | 267 µS/cm |
| 13 Jan 2025, 10:07 | 252 | 252 µS/cm |
| 6 Dec 2024, 12:18 | 184 | 184 µS/cm |
| 6 Nov 2024, 12:00 | 232 | 232 µS/cm |
| 2 Oct 2024, 08:27 | 191 | 191 µS/cm |
| 3 Sep 2024, 11:13 | 231 | 231 µS/cm |
| 8 Aug 2024, 11:54 | 270 | 270 µS/cm |
| 2 Jul 2024, 09:44 | 317 | 317 µS/cm |
| 11 Jun 2024, 08:26 | 275 | 275 µS/cm |
| 7 Mar 2024, 11:00 | 231 | 231 µS/cm |
| 7 Feb 2024, 11:27 | 203 | 203 µS/cm |
| 3 Jan 2024, 10:20 | 170 | 170 µS/cm |
| 7 Dec 2023, 08:48 | 263 | 263 µS/cm |
| 3 Nov 2023, 08:05 | 162 | 162 µS/cm |
| 5 Oct 2023, 09:05 | 241 | 241 µS/cm |
Everything measured here
59 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 59 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 22 | Oct 2023 – Sep 2026 | 91.3% 18 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Oct 2023 – Sep 2026 | 9.41 mg/l 18 Sep 2026 |
| Temperature of Water 0076 | River water | 22 | Oct 2023 – Sep 2026 | 13.9 °C 18 Sep 2026 |
| pH 0061 | River water | 22 | Oct 2023 – Sep 2026 | 7.71 18 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Oct 2023 – Sep 2026 | below 0.03 mg/l 18 Sep 2026 |
| Nitrate as N 0117 | River water | 22 | Oct 2023 – Sep 2026 | 1.19 mg/l 18 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Oct 2023 – Sep 2026 | 0.048 mg/l 18 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 22 | Oct 2023 – Sep 2026 | 253 µS/cm 18 Sep 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Jul 2024 – Jul 2024 | below 0.004 µg/l 2 Jul 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 2 Jul 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – Sep 2026 | 67 mg/l 18 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Oct 2023 – Sep 2026 | below 0.00038 mg/l 18 Sep 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Nitrite as N 0118 | River water | 22 | Oct 2023 – Sep 2026 | 0.011 mg/l 18 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Oct 2023 – Sep 2026 | 1.2 mg/l 18 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 2 Jul 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Jul 2024 – Jul 2024 | 0.0011 µg/l 2 Jul 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 2 Jul 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 2 Jul 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Jul 2024 – Jul 2024 | below 0.006 µg/l 2 Jul 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 2 Jul 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Jul 2024 – Jul 2024 | below 0.004 µg/l 2 Jul 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 2 Jul 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.