Thornton Beck upstream of Scarah Mill
EA name: THORNTON BECK U/S SCARAH MILL (also listed as “RSN2212 THORNTON BECK U/S SCARAH MILL”)
Environment Agency sampling point NE-RSN2212 · 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
- 10 Dec 2025, 11:3410 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
- 24 since 8 Jan 2024 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 427286, 461909As published, to the nearest 1 m. Open in a map
- River, by its own name
- Thornton Beck
- River, by the map
- Thornton BeckPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Hunsingore On the River Nidd · 30 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.4%
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 98.4 | 98.4% |
| 7 Nov 2025, 11:17 | 95.1 | 95.1% |
| 17 Oct 2025, 10:39 | 93.7 | 93.7% |
| 15 Sep 2025, 13:55 | 82.7 | 82.7% |
| 28 Aug 2025, 11:30 | 95.3 | 95.3% |
| 28 Jul 2025, 12:53 | 96.3 | 96.3% |
| 11 Jun 2025, 12:40 | 93.5 | 93.5% |
| 19 May 2025, 15:33 | 103.8 | 103.8% |
| 2 Apr 2025, 13:25 | 111.3 | 111.3% |
| 3 Mar 2025, 12:27 | 95.3 | 95.3% |
| 4 Feb 2025, 12:47 | 99.6 | 99.6% |
| 7 Jan 2025, 11:06 | 96.9 | 96.9% |
| 2 Dec 2024, 14:32 | 97.7 | 97.7% |
| 5 Nov 2024, 12:27 | 91 | 91% |
| 10 Oct 2024, 11:11 | 96.4 | 96.4% |
| 6 Sep 2024, 11:48 | 99 | 99% |
| 2 Aug 2024, 12:49 | 90.6 | 90.6% |
| 3 Jul 2024, 11:03 | 92.1 | 92.1% |
| 7 Jun 2024, 10:15 | 97.2 | 97.2% |
| 1 May 2024, 12:59 | 103.1 | 103.1% |
| 3 Apr 2024, 12:27 | 99.7 | 99.7% |
| 1 Mar 2024, 12:15 | 97.9 | 97.9% |
| 6 Feb 2024, 12:42 | 97.9 | 97.9% |
| 8 Jan 2024, 14:34 | 98.4 | 98.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.5 mg/l
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 11.5 | 11.5 mg/l |
| 7 Nov 2025, 11:17 | 10.4 | 10.4 mg/l |
| 17 Oct 2025, 10:39 | 10.5 | 10.5 mg/l |
| 15 Sep 2025, 13:55 | 8.77 | 8.77 mg/l |
| 28 Aug 2025, 11:30 | 9.71 | 9.71 mg/l |
| 28 Jul 2025, 12:53 | 9.52 | 9.52 mg/l |
| 11 Jun 2025, 12:40 | 9.63 | 9.63 mg/l |
| 19 May 2025, 15:33 | 10.9 | 10.9 mg/l |
| 2 Apr 2025, 13:25 | 13 | 13 mg/l |
| 3 Mar 2025, 12:27 | 11.4 | 11.4 mg/l |
| 4 Feb 2025, 12:47 | 12 | 12 mg/l |
| 7 Jan 2025, 11:06 | 12.8 | 12.8 mg/l |
| 2 Dec 2024, 14:32 | 11.6 | 11.6 mg/l |
| 5 Nov 2024, 12:27 | 10.3 | 10.3 mg/l |
| 10 Oct 2024, 11:11 | 11 | 11 mg/l |
| 6 Sep 2024, 11:48 | 9.68 | 9.68 mg/l |
| 2 Aug 2024, 12:49 | 8.75 | 8.75 mg/l |
| 3 Jul 2024, 11:03 | 9.74 | 9.74 mg/l |
| 7 Jun 2024, 10:15 | 10.9 | 10.9 mg/l |
| 1 May 2024, 12:59 | 11.2 | 11.2 mg/l |
| 3 Apr 2024, 12:27 | 11.3 | 11.3 mg/l |
| 1 Mar 2024, 12:15 | 12.5 | 12.5 mg/l |
| 6 Feb 2024, 12:42 | 11.5 | 11.5 mg/l |
| 8 Jan 2024, 14:34 | 12.4 | 12.4 mg/l |
Water temperature
code 0076 · °C
8.6 °C
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 8.6 | 8.6 °C |
| 7 Nov 2025, 11:17 | 11.2 | 11.2 °C |
| 17 Oct 2025, 10:39 | 10.2 | 10.2 °C |
| 15 Sep 2025, 13:55 | 12.6 | 12.6 °C |
| 28 Aug 2025, 11:30 | 14.4 | 14.4 °C |
| 28 Jul 2025, 12:53 | 15.8 | 15.8 °C |
| 11 Jun 2025, 12:40 | 13.9 | 13.9 °C |
| 19 May 2025, 15:33 | 13.1 | 13.1 °C |
| 2 Apr 2025, 13:25 | 8.5 | 8.5 °C |
| 3 Mar 2025, 12:27 | 7.4 | 7.4 °C |
| 4 Feb 2025, 12:47 | 7.3 | 7.3 °C |
| 7 Jan 2025, 11:06 | 3.6 | 3.6 °C |
| 2 Dec 2024, 14:32 | 7.9 | 7.9 °C |
| 5 Nov 2024, 12:27 | 9.9 | 9.9 °C |
| 10 Oct 2024, 11:11 | 9.6 | 9.6 °C |
| 6 Sep 2024, 11:48 | 16.3 | 16.3 °C |
| 2 Aug 2024, 12:49 | 16.9 | 16.9 °C |
| 3 Jul 2024, 11:03 | 12.7 | 12.7 °C |
| 7 Jun 2024, 10:15 | 10.3 | 10.3 °C |
| 1 May 2024, 12:59 | 11.7 | 11.7 °C |
| 3 Apr 2024, 12:27 | 9.8 | 9.8 °C |
| 1 Mar 2024, 12:15 | 4.9 | 4.9 °C |
| 6 Feb 2024, 12:42 | 8.3 | 8.3 °C |
| 8 Jan 2024, 14:34 | 5.6 | 5.6 °C |
pH
code 0061
7.38
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 7.38 | 7.38 |
| 7 Nov 2025, 11:17 | 7.87 | 7.87 |
| 17 Oct 2025, 10:39 | 7.68 | 7.68 |
| 15 Sep 2025, 13:55 | 8.12 | 8.12 |
| 28 Aug 2025, 11:30 | 7.85 | 7.85 |
| 28 Jul 2025, 12:53 | 8.08 | 8.08 |
| 11 Jun 2025, 12:40 | 7.75 | 7.75 |
| 19 May 2025, 15:33 | 8.05 | 8.05 |
| 2 Apr 2025, 13:25 | 8.15 | 8.15 |
| 3 Mar 2025, 12:27 | 7.64 | 7.64 |
| 4 Feb 2025, 12:47 | 7.36 | 7.36 |
| 7 Jan 2025, 11:06 | 7.75 | 7.75 |
| 2 Dec 2024, 14:32 | 7.66 | 7.66 |
| 5 Nov 2024, 12:27 | 7.54 | 7.54 |
| 10 Oct 2024, 11:11 | 7.54 | 7.54 |
| 6 Sep 2024, 11:48 | 7.8 | 7.8 |
| 2 Aug 2024, 12:49 | 7.71 | 7.71 |
| 3 Jul 2024, 11:03 | 7.7 | 7.7 |
| 7 Jun 2024, 10:15 | 7.88 | 7.88 |
| 1 May 2024, 12:59 | 7.89 | 7.89 |
| 3 Apr 2024, 12:27 | 7.63 | 7.63 |
| 1 Mar 2024, 12:15 | 7.66 | 7.66 |
| 6 Feb 2024, 12:42 | 7.37 | 7.37 |
| 8 Jan 2024, 14:34 | 7.54 | 7.54 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.15 mg/l
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 0.15 | 0.15 mg/l |
| 7 Nov 2025, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2025, 10:39 | 0.038 | 0.038 mg/l |
| 15 Sep 2025, 13:55 | 0.07 | 0.07 mg/l |
| 28 Aug 2025, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jul 2025, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jun 2025, 12:40 | 0.072 | 0.072 mg/l |
| 19 May 2025, 15:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 13:25 | 0.056 | 0.056 mg/l |
| 3 Mar 2025, 12:27 | 0.14 | 0.14 mg/l |
| 4 Feb 2025, 12:47 | 0.11 | 0.11 mg/l |
| 7 Jan 2025, 11:06 | 0.12 | 0.12 mg/l |
| 2 Dec 2024, 14:32 | 0.096 | 0.096 mg/l |
| 5 Nov 2024, 12:27 | 0.081 | 0.081 mg/l |
| 10 Oct 2024, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Sep 2024, 11:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Aug 2024, 12:49 | 0.056 | 0.056 mg/l |
| 3 Jul 2024, 11:03 | 0.048 | 0.048 mg/l |
| 7 Jun 2024, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2024, 12:59 | 0.081 | 0.081 mg/l |
| 3 Apr 2024, 12:27 | 0.27 | 0.27 mg/l |
| 1 Mar 2024, 12:15 | 0.12 | 0.12 mg/l |
| 6 Feb 2024, 12:42 | 0.18 | 0.18 mg/l |
| 8 Jan 2024, 14:34 | 0.17 | 0.17 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.98 mg/l
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 4.98 | 4.98 mg/l |
| 7 Nov 2025, 11:17 | 4.29 | 4.29 mg/l |
| 17 Oct 2025, 10:39 | 3.89 | 3.89 mg/l |
| 15 Sep 2025, 13:55 | 4.06 | 4.06 mg/l |
| 28 Aug 2025, 11:30 | 4.8 | 4.8 mg/l |
| 28 Jul 2025, 12:53 | 4.77 | 4.77 mg/l |
| 11 Jun 2025, 12:40 | 3.48 | 3.48 mg/l |
| 19 May 2025, 15:33 | 4.18 | 4.18 mg/l |
| 2 Apr 2025, 13:25 | 4.09 | 4.09 mg/l |
| 3 Mar 2025, 12:27 | 13 | 13 mg/l |
| 4 Feb 2025, 12:47 | 4.87 | 4.87 mg/l |
| 7 Jan 2025, 11:06 | 4.28 | 4.28 mg/l |
| 2 Dec 2024, 14:32 | 3.66 | 3.66 mg/l |
| 5 Nov 2024, 12:27 | 3.48 | 3.48 mg/l |
| 10 Oct 2024, 11:11 | 4.09 | 4.09 mg/l |
| 6 Sep 2024, 11:48 | 4.09 | 4.09 mg/l |
| 2 Aug 2024, 12:49 | 3.79 | 3.79 mg/l |
| 3 Jul 2024, 11:03 | 4.44 | 4.44 mg/l |
| 7 Jun 2024, 10:15 | 4.29 | 4.29 mg/l |
| 1 May 2024, 12:59 | 4.28 | 4.28 mg/l |
| 3 Apr 2024, 12:27 | 1.38 | 1.38 mg/l |
| 1 Mar 2024, 12:15 | 4.16 | 4.16 mg/l |
| 6 Feb 2024, 12:42 | 4.64 | 4.64 mg/l |
| 8 Jan 2024, 14:34 | 5.44 | 5.44 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.1 mg/l
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 0.1 | 0.1 mg/l |
| 7 Nov 2025, 11:17 | 0.064 | 0.064 mg/l |
| 17 Oct 2025, 10:39 | 0.054 | 0.054 mg/l |
| 15 Sep 2025, 13:55 | 0.12 | 0.12 mg/l |
| 28 Aug 2025, 11:30 | 0.077 | 0.077 mg/l |
| 28 Jul 2025, 12:53 | 0.079 | 0.079 mg/l |
| 11 Jun 2025, 12:40 | 0.067 | 0.067 mg/l |
| 19 May 2025, 15:33 | 0.052 | 0.052 mg/l |
| 2 Apr 2025, 13:25 | 0.046 | 0.046 mg/l |
| 3 Mar 2025, 12:27 | 0.044 | 0.044 mg/l |
| 4 Feb 2025, 12:47 | 0.044 | 0.044 mg/l |
| 7 Jan 2025, 11:06 | 0.097 | 0.097 mg/l |
| 2 Dec 2024, 14:32 | 0.097 | 0.097 mg/l |
| 5 Nov 2024, 12:27 | 0.09 | 0.09 mg/l |
| 10 Oct 2024, 11:11 | 0.09 | 0.09 mg/l |
| 6 Sep 2024, 11:48 | 0.2 | 0.2 mg/l |
| 2 Aug 2024, 12:49 | 0.21 | 0.21 mg/l |
| 3 Jul 2024, 11:03 | 0.19 | 0.19 mg/l |
| 7 Jun 2024, 10:15 | 0.12 | 0.12 mg/l |
| 1 May 2024, 12:59 | 0.075 | 0.075 mg/l |
| 3 Apr 2024, 12:27 | 0.085 | 0.085 mg/l |
| 1 Mar 2024, 12:15 | 0.076 | 0.076 mg/l |
| 6 Feb 2024, 12:42 | 0.1 | 0.1 mg/l |
| 8 Jan 2024, 14:34 | 0.097 | 0.097 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
225 µS/cm
Sampled 10 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 11:34 | 225 | 225 µS/cm |
| 7 Nov 2025, 11:17 | 288 | 288 µS/cm |
| 17 Oct 2025, 10:39 | 305 | 305 µS/cm |
| 15 Sep 2025, 13:55 | 330 | 330 µS/cm |
| 28 Aug 2025, 11:30 | 351 | 351 µS/cm |
| 28 Jul 2025, 12:53 | 340 | 340 µS/cm |
| 11 Jun 2025, 12:40 | 307 | 307 µS/cm |
| 19 May 2025, 15:33 | 309 | 309 µS/cm |
| 2 Apr 2025, 13:25 | 281 | 281 µS/cm |
| 3 Mar 2025, 12:27 | 386 | 386 µS/cm |
| 4 Feb 2025, 12:47 | 254 | 254 µS/cm |
| 7 Jan 2025, 11:06 | 252 | 252 µS/cm |
| 2 Dec 2024, 14:32 | 269 | 269 µS/cm |
| 5 Nov 2024, 12:27 | 279 | 279 µS/cm |
| 10 Oct 2024, 11:11 | 245 | 245 µS/cm |
| 6 Sep 2024, 11:48 | 309 | 309 µS/cm |
| 2 Aug 2024, 12:49 | 320 | 320 µS/cm |
| 3 Jul 2024, 11:03 | 308 | 308 µS/cm |
| 7 Jun 2024, 10:15 | 275 | 275 µS/cm |
| 1 May 2024, 12:59 | 268 | 268 µS/cm |
| 3 Apr 2024, 12:27 | 148 | 148 µS/cm |
| 1 Mar 2024, 12:15 | 391 | 391 µS/cm |
| 6 Feb 2024, 12:42 | 259 | 259 µS/cm |
| 8 Jan 2024, 14:34 | 248 | 248 µS/cm |
Everything measured here
66 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 66 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jan 2024 – Dec 2025 | 98.4% 10 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jan 2024 – Dec 2025 | 11.5 mg/l 10 Dec 2025 |
| Temperature of Water 0076 | River water | 24 | Jan 2024 – Dec 2025 | 8.6 °C 10 Dec 2025 |
| pH 0061 | River water | 24 | Jan 2024 – Dec 2025 | 7.38 10 Dec 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jan 2024 – Dec 2025 | 0.15 mg/l 10 Dec 2025 |
| Nitrate as N 0117 | River water | 24 | Jan 2024 – Dec 2025 | 4.98 mg/l 10 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jan 2024 – Dec 2025 | 0.1 mg/l 10 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 24 | Jan 2024 – Dec 2025 | 225 µS/cm 10 Dec 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Sep 2025 – Sep 2025 | below 0.004 µg/l 15 Sep 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jan 2024 – Dec 2025 | 52 mg/l 10 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jan 2024 – Dec 2025 | 0.0006 mg/l 10 Dec 2025 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 24 | Jan 2024 – Dec 2025 | 9.9 mg/l 10 Dec 2025 |
| Chloride 0172 | River water | 23 | Jan 2024 – Dec 2025 | 14 mg/l 10 Dec 2025 |
| Flow Type 2896 | River water | 14 | Jul 2024 – Dec 2025 | High Flow 10 Dec 2025 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Sep 2025 – Sep 2025 | below 0.002 µg/l 15 Sep 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Sep 2025 – Sep 2025 | below 0.002 µg/l 15 Sep 2025 |
| Nitrite as N 0118 | River water | 24 | Jan 2024 – Dec 2025 | 0.022 mg/l 10 Dec 2025 |
| Nitrogen, Total as N 9686 | River water | 24 | Jan 2024 – Dec 2025 | 6.8 mg/l 10 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jan 2024 – Dec 2025 | 5 mg/l 10 Dec 2025 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Sep 2025 – Sep 2025 | 0.001 µg/l 15 Sep 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Sep 2025 – Sep 2025 | 0.0017 µg/l 15 Sep 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Sep 2025 – Sep 2025 | 0.00054 µg/l 15 Sep 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Sep 2025 – Sep 2025 | below 0.005 µg/l 15 Sep 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Sep 2025 – Sep 2025 | below 0.002 µg/l 15 Sep 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Sep 2025 – Sep 2025 | 0.0006 µg/l 15 Sep 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Sep 2025 – Sep 2025 | below 0.002 µg/l 15 Sep 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Sep 2025 – Sep 2025 | 0.00095 µg/l 15 Sep 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Sep 2025 – Sep 2025 | 0.0027 µg/l 15 Sep 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Sep 2025 – Sep 2025 | 0.0013 µg/l 15 Sep 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Sep 2025 – Sep 2025 | below 0.0005 µg/l 15 Sep 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Sep 2025 – Sep 2025 | below 0.006 µg/l 15 Sep 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Sep 2025 – Sep 2025 | below 0.002 µg/l 15 Sep 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Sep 2025 – Sep 2025 | below 0.004 µg/l 15 Sep 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Sep 2025 – Sep 2025 | below 0.001 µg/l 15 Sep 2025 |
| Phosphorus, Total as P 0348 | River water | 24 | Jan 2024 – Dec 2025 | 0.17 mg/l 10 Dec 2025 |
| Silica, reactive as SiO2 0182 | River water | 24 | Jan 2024 – Dec 2025 | 7.6 mg/l 10 Dec 2025 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Dec 2025 – Dec 2025 | 19 mg/l 10 Dec 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.