Tributary of Churnet upstream of Big Wood
EA name: SSN0225 TRIB OF CHURNET U/S OF BIG WOOD (also listed as “SSN0225 TRIB OF CHURNET U/S OF BIG WOOD, UPPER HULME”)
Environment Agency sampling point MD-SSN0225 · 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
- 21 Aug 2026, 12:0948 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 19 since 2 Jan 2025 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 403075, 360818As published, to the nearest 1 m. Open in a map
- River, by its own name
- Churnet
- River, by the map
- An unnamed streamOn a small stream traced into the river its name gives, 3 m from the line.
- Next gauge downstream
- Leek On the River Churnet · 7.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.5%
Sampled 21 Aug 2026, 48 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 96.5 | 96.5% |
| 14 Jul 2026, 10:14 | 90.3 | 90.3% |
| 12 Jun 2026, 11:32 | 99.8 | 99.8% |
| 22 Apr 2026, 12:45 | 96.4 | 96.4% |
| 27 Mar 2026, 13:32 | 100.2 | 100.2% |
| 25 Nov 2025, 13:57 | 102.1 | 102.1% |
| 16 Oct 2025, 11:53 | 98.9 | 98.9% |
| 4 Sep 2025, 11:10 | 96.7 | 96.7% |
| 20 Aug 2025, 13:25 | 95.6 | 95.6% |
| 11 Aug 2025, 11:18 | 96.6 | 96.6% |
| 31 Jul 2025, 12:23 | 96.4 | 96.4% |
| 18 Jun 2025, 10:28 | 106.9 | 106.9% |
| 23 May 2025, 13:41 | 97.7 | 97.7% |
| 10 Apr 2025, 18:06 | 98.7 | 98.7% |
| 19 Mar 2025, 11:34 | 99.6 | 99.6% |
| 18 Feb 2025, 09:23 | 100.1 | 100.1% |
| 31 Jan 2025, 10:11 | 100.6 | 100.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10 mg/l
Sampled 21 Aug 2026, 48 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 10 | 10 mg/l |
| 14 Jul 2026, 10:14 | 9.43 | 9.43 mg/l |
| 12 Jun 2026, 11:32 | 10.7 | 10.7 mg/l |
| 22 Apr 2026, 12:45 | 11 | 11 mg/l |
| 27 Mar 2026, 13:32 | 12.1 | 12.1 mg/l |
| 25 Nov 2025, 13:57 | 13.3 | 13.3 mg/l |
| 16 Oct 2025, 11:53 | 11.1 | 11.1 mg/l |
| 4 Sep 2025, 11:10 | 10.2 | 10.2 mg/l |
| 20 Aug 2025, 13:25 | 10.1 | 10.1 mg/l |
| 11 Aug 2025, 11:18 | 9.69 | 9.69 mg/l |
| 31 Jul 2025, 12:23 | 9.78 | 9.78 mg/l |
| 18 Jun 2025, 10:28 | 11 | 11 mg/l |
| 23 May 2025, 13:41 | 10.3 | 10.3 mg/l |
| 10 Apr 2025, 18:06 | 12.3 | 12.3 mg/l |
| 19 Mar 2025, 11:34 | 13 | 13 mg/l |
| 18 Feb 2025, 09:23 | 14.5 | 14.5 mg/l |
| 31 Jan 2025, 10:11 | 13.3 | 13.3 mg/l |
Water temperature
code 0076 · °C
13.4 °C
Sampled 21 Aug 2026, 48 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 13.4 | 13.4 °C |
| 14 Jul 2026, 10:14 | 13.3 | 13.3 °C |
| 12 Jun 2026, 11:32 | 12.3 | 12.3 °C |
| 22 Apr 2026, 12:45 | 9.5 | 9.5 °C |
| 27 Mar 2026, 13:32 | 7.1 | 7.1 °C |
| 25 Nov 2025, 13:57 | 4.2 | 4.2 °C |
| 16 Oct 2025, 11:53 | 10.1 | 10.1 °C |
| 4 Sep 2025, 11:10 | 12.8 | 12.8 °C |
| 20 Aug 2025, 13:25 | 12.9 | 12.9 °C |
| 11 Aug 2025, 11:18 | 15.1 | 15.1 °C |
| 31 Jul 2025, 12:23 | 14.6 | 14.6 °C |
| 18 Jun 2025, 10:28 | 14 | 14 °C |
| 23 May 2025, 13:41 | 12.8 | 12.8 °C |
| 10 Apr 2025, 18:06 | 5.9 | 5.9 °C |
| 19 Mar 2025, 11:34 | 4.1 | 4.1 °C |
| 18 Feb 2025, 09:23 | 0.3 | 0.3 °C |
| 31 Jan 2025, 10:11 | 3.7 | 3.7 °C |
pH
code 0061
8.16
Sampled 21 Aug 2026, 48 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 8.16 | 8.16 |
| 14 Jul 2026, 10:14 | 7.78 | 7.78 |
| 12 Jun 2026, 11:32 | 7.62 | 7.62 |
| 22 Apr 2026, 12:45 | 7.86 | 7.86 |
| 27 Mar 2026, 13:32 | 8.16 | 8.16 |
| 25 Nov 2025, 13:57 | 8.06 | 8.06 |
| 16 Oct 2025, 11:53 | 8.03 | 8.03 |
| 4 Sep 2025, 11:10 | 7.95 | 7.95 |
| 20 Aug 2025, 13:25 | 8.06 | 8.06 |
| 11 Aug 2025, 11:18 | 7.97 | 7.97 |
| 31 Jul 2025, 12:23 | 7.94 | 7.94 |
| 18 Jun 2025, 10:28 | 7.84 | 7.84 |
| 23 May 2025, 13:41 | 7.93 | 7.93 |
| 10 Apr 2025, 18:06 | 7.9 | 7.9 |
| 19 Mar 2025, 11:34 | 7.95 | 7.95 |
| 18 Feb 2025, 09:23 | 7.86 | 7.86 |
| 31 Jan 2025, 10:11 | 7.41 | 7.41 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.0059 mg/l
Sampled 21 Aug 2026, 48 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 0.0059 | 0.0059 mg/l |
| 14 Jul 2026, 10:14 | 0.0051 | 0.0051 mg/l |
| 12 Jun 2026, 11:32 | 0.0025 | 0.0025 mg/l |
| 22 Apr 2026, 12:45 | 0.0036 | 0.0036 mg/l |
| 27 Mar 2026, 13:32 | 0.0029 | 0.0029 mg/l |
| 25 Nov 2025, 13:57 | 0.0026 | 0.0026 mg/l |
| 16 Oct 2025, 11:53 | 0.0027 | 0.0027 mg/l |
| 4 Sep 2025, 11:10 | 0.004 | 0.004 mg/l |
| 20 Aug 2025, 13:25 | 0.011 | 0.011 mg/l |
| 11 Aug 2025, 11:18 | 0.0058 | 0.0058 mg/l |
| 31 Jul 2025, 12:23 | 0.0055 | 0.0055 mg/l |
| 18 Jun 2025, 10:28 | 0.0068 | 0.0068 mg/l |
| 23 May 2025, 13:41 | <0.002 | below 0.002 mg/l (not detected above this) |
| 25 Apr 2025, 09:22 | 0.0034 | 0.0034 mg/l |
| 10 Apr 2025, 18:06 | <0.002 | below 0.002 mg/l (not detected above this) |
| 19 Mar 2025, 11:34 | 0.0028 | 0.0028 mg/l |
| 18 Feb 2025, 09:23 | 0.0065 | 0.0065 mg/l |
| 31 Jan 2025, 10:11 | 0.0038 | 0.0038 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.119 mg/l
Sampled 21 Aug 2026, 48 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 0.119 | 0.119 mg/l |
| 14 Jul 2026, 10:14 | 1.2 | 1.2 mg/l |
| 12 Jun 2026, 11:32 | 0.189 | 0.189 mg/l |
| 22 Apr 2026, 12:45 | 0.065 | 0.065 mg/l |
| 27 Mar 2026, 13:32 | 0.119 | 0.119 mg/l |
| 25 Nov 2025, 13:57 | 0.075 | 0.075 mg/l |
| 16 Oct 2025, 11:53 | 0.099 | 0.099 mg/l |
| 4 Sep 2025, 11:10 | 0.069 | 0.069 mg/l |
| 20 Aug 2025, 13:25 | 0.096 | 0.096 mg/l |
| 11 Aug 2025, 11:18 | 0.129 | 0.129 mg/l |
| 31 Jul 2025, 12:23 | 0.098 | 0.098 mg/l |
| 18 Jun 2025, 10:28 | 0.139 | 0.139 mg/l |
| 23 May 2025, 13:41 | 0.071 | 0.071 mg/l |
| 25 Apr 2025, 09:22 | 0.063 | 0.063 mg/l |
| 10 Apr 2025, 18:06 | 0.079 | 0.079 mg/l |
| 19 Mar 2025, 11:34 | 0.139 | 0.139 mg/l |
| 18 Feb 2025, 09:23 | 0.259 | 0.259 mg/l |
| 31 Jan 2025, 10:11 | 0.269 | 0.269 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0038 mg/l
Sampled 21 Aug 2026, 48 days ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 0.0038 | 0.0038 mg/l |
| 14 Jul 2026, 10:14 | 0.011 | 0.011 mg/l |
| 12 Jun 2026, 11:32 | 0.0024 | 0.0024 mg/l |
| 22 Apr 2026, 12:45 | <0.001 | below 0.001 mg/l (not detected above this) |
| 27 Mar 2026, 13:32 | <0.001 | below 0.001 mg/l (not detected above this) |
| 25 Nov 2025, 13:57 | <0.001 | below 0.001 mg/l (not detected above this) |
| 16 Oct 2025, 11:53 | 0.004 | 0.004 mg/l |
| 4 Sep 2025, 11:10 | 0.004 | 0.004 mg/l |
| 20 Aug 2025, 13:25 | 0.0044 | 0.0044 mg/l |
| 11 Aug 2025, 11:18 | 0.0038 | 0.0038 mg/l |
| 31 Jul 2025, 12:23 | 0.0039 | 0.0039 mg/l |
| 18 Jun 2025, 10:28 | 0.0021 | 0.0021 mg/l |
| 23 May 2025, 13:41 | <0.001 | below 0.001 mg/l (not detected above this) |
| 25 Apr 2025, 09:22 | <0.001 | below 0.001 mg/l (not detected above this) |
| 10 Apr 2025, 18:06 | 0.0012 | 0.0012 mg/l |
| 19 Mar 2025, 11:34 | 0.0017 | 0.0017 mg/l |
| 18 Feb 2025, 09:23 | 0.0016 | 0.0016 mg/l |
| 31 Jan 2025, 10:11 | <0.001 | below 0.001 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
326 µS/cm
Sampled 21 Aug 2026, 48 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:09 | 326 | 326 µS/cm |
| 14 Jul 2026, 10:14 | 347 | 347 µS/cm |
| 12 Jun 2026, 11:32 | 147 | 147 µS/cm |
| 22 Apr 2026, 12:45 | 214 | 214 µS/cm |
| 27 Mar 2026, 13:32 | 168 | 168 µS/cm |
| 25 Nov 2025, 13:57 | 221 | 221 µS/cm |
| 16 Oct 2025, 11:53 | 237 | 237 µS/cm |
| 4 Sep 2025, 11:10 | 320 | 320 µS/cm |
| 20 Aug 2025, 13:25 | 313 | 313 µS/cm |
| 11 Aug 2025, 11:18 | 321 | 321 µS/cm |
| 31 Jul 2025, 12:23 | 304 | 304 µS/cm |
| 18 Jun 2025, 10:28 | 289 | 289 µS/cm |
| 23 May 2025, 13:41 | 309 | 309 µS/cm |
| 10 Apr 2025, 18:06 | 259 | 259 µS/cm |
| 19 Mar 2025, 11:34 | 225 | 225 µS/cm |
| 18 Feb 2025, 09:23 | 209 | 209 µS/cm |
| 31 Jan 2025, 10:11 | 230 | 230 µS/cm |
Everything measured here
96 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 96 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 17 | Jan 2025 – Aug 2026 | 96.5% 21 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 17 | Jan 2025 – Aug 2026 | 10 mg/l 21 Aug 2026 |
| Temperature of Water 0076 | River water | 17 | Jan 2025 – Aug 2026 | 13.4 °C 21 Aug 2026 |
| pH 0061 | River water | 17 | Jan 2025 – Aug 2026 | 8.16 21 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 18 | Jan 2025 – Aug 2026 | 0.0059 mg/l 21 Aug 2026 |
| Nitrate as N 0117 | River water | 18 | Jan 2025 – Aug 2026 | 0.119 mg/l 21 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 18 | Jan 2025 – Aug 2026 | 0.0038 mg/l 21 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 17 | Jan 2025 – Aug 2026 | 326 µS/cm 21 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | May 2025 – May 2025 | below 0.004 µg/l 23 May 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Jan 2025 – Aug 2026 | 74 mg/l 21 Aug 2026 |
| Aluminium, Dissolved 6037 | River water | 6 | Apr 2025 – Mar 2026 | 49 µg/l 27 Mar 2026 |
| Aminomethylphosphonic acid 7125 | River water | 12 | Apr 2025 – Apr 2026 | below 0.1 µg/l 22 Apr 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Jan 2025 – Aug 2026 | 0.00014 mg/l 21 Aug 2026 |
| Barium, Dissolved 9446 | River water | 6 | Apr 2025 – Mar 2026 | 42 µg/l 27 Mar 2026 |
| Boron, Dissolved 9447 | River water | 6 | Apr 2025 – Mar 2026 | below 100 µg/l 27 Mar 2026 |
| Cadmium, Dissolved 0106 | River water | 6 | Apr 2025 – Mar 2026 | 0.18 µg/l 27 Mar 2026 |
| Calcium, Dissolved 0239 | River water | 6 | Apr 2025 – Mar 2026 | 14 mg/l 27 Mar 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 17 | Jan 2025 – Aug 2026 | 3.7 mg/l 21 Aug 2026 |
| Chloride 0172 | River water | 17 | Jan 2025 – Aug 2026 | 32 mg/l 21 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 6 | Apr 2025 – Mar 2026 | below 0.5 µg/l 27 Mar 2026 |
| Copper : BLM Bioavailable 4821 | River water | 5 | Apr 2025 – Mar 2026 | 0.2 µg/l 27 Mar 2026 |
| Copper, Dissolved 6450 | River water | 6 | Apr 2025 – Mar 2026 | 1.7 µg/l 27 Mar 2026 |
| eDNA Report 3047 | River water | 1 | Jan 2025 – Jan 2025 | 1 text result 2 Jan 2025 |
| Flow Type 2896 | River water | 17 | Jan 2025 – Aug 2026 | Moderate Flow 21 Aug 2026 |
| Glyphosate 3007 | River water | 12 | Apr 2025 – Apr 2026 | below 0.1 µg/l 22 Apr 2026 |
| Hardness, Calcium 0163 | River water | 6 | Apr 2025 – Mar 2026 | 35 mg/l 27 Mar 2026 |
| Hardness, Total as CaCO3 0158 | River water | 6 | Apr 2025 – Mar 2026 | 44.8 mg/l 27 Mar 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Iron, Dissolved 6460 | River water | 6 | Apr 2025 – Mar 2026 | 95 µg/l 27 Mar 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 10 | Mar 2025 – Nov 2025 | 1 text result 25 Nov 2025 |
| Lead : BLM Bioavailable 3377 | River water | 5 | Apr 2025 – Mar 2026 | 0.05 µg/l 27 Mar 2026 |
| Lead, Dissolved 0052 | River water | 6 | Apr 2025 – Mar 2026 | 0.17 µg/l 27 Mar 2026 |
| Lithium, Dissolved 4201 | River water | 6 | Apr 2025 – Mar 2026 | below 100 µg/l 27 Mar 2026 |
| Magnesium, Dissolved 0235 | River water | 6 | Apr 2025 – Mar 2026 | 2.4 mg/l 27 Mar 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 5 | Apr 2025 – Mar 2026 | 17 µg/l 27 Mar 2026 |
| Manganese, Dissolved 6458 | River water | 6 | Apr 2025 – Mar 2026 | 17 µg/l 27 Mar 2026 |
| Mitochondrial marker : Fish 12S 2857 | River water | 1 | Jan 2025 – Jan 2025 | Not found 2 Jan 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | May 2025 – May 2025 | below 0.002 µg/l 23 May 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | May 2025 – May 2025 | below 0.002 µg/l 23 May 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 5 | Apr 2025 – Mar 2026 | 4.2 µg/l 27 Mar 2026 |
| Nickel, Dissolved 3410 | River water | 6 | Apr 2025 – Mar 2026 | 5.9 µg/l 27 Mar 2026 |
| Nitrite as N 0118 | River water | 18 | Jan 2025 – Aug 2026 | below 0.001 mg/l 21 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 17 | Jan 2025 – Aug 2026 | 0.36 mg/l 21 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 18 | Jan 2025 – Aug 2026 | 0.12 mg/l 21 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | May 2025 – May 2025 | below 0.005 µg/l 23 May 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | May 2025 – May 2025 | below 0.002 µg/l 23 May 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | May 2025 – May 2025 | below 0.002 µg/l 23 May 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | May 2025 – May 2025 | below 0.0005 µg/l 23 May 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | May 2025 – May 2025 | below 0.006 µg/l 23 May 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | May 2025 – May 2025 | below 0.002 µg/l 23 May 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | May 2025 – May 2025 | below 0.004 µg/l 23 May 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | May 2025 – May 2025 | below 0.001 µg/l 23 May 2025 |
| Phosphorus, Total as P 0348 | River water | 17 | Jan 2025 – Aug 2026 | 0.0054 mg/l 21 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 6 | Apr 2025 – Mar 2026 | 0.61 mg/l 27 Mar 2026 |
| Silica, reactive as SiO2 0182 | River water | 18 | Jan 2025 – Aug 2026 | 8.1 mg/l 21 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 6 | Apr 2025 – Mar 2026 | 12 mg/l 27 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 17 | Jan 2025 – Aug 2026 | 4.3 mg/l 21 Aug 2026 |
| Strontium, Filtered 6693 | River water | 6 | Apr 2025 – Mar 2026 | 56 µg/l 27 Mar 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 6 | Apr 2025 – Mar 2026 | 15 mg/l 27 Mar 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 5 | Apr 2025 – Mar 2026 | 2.7 µg/l 27 Mar 2026 |
| Zinc, Dissolved 3408 | River water | 6 | Apr 2025 – Mar 2026 | 5.1 µg/l 27 Mar 2026 |
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.