Plyford Stream at Plyford Wood
EA name: SSN0064 PLYFORD STREAM AT PLYFORD WOOD
Environment Agency sampling point SW-SSN0064 · 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 Sep 2026, 12:3121 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 23 since 23 Jan 2025 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 313992, 94782As published, to the nearest 1 m. Open in a map
- River, by its own name
- Plyford Stream
- River, by the map
- Not placedNearest line is 82 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.1%
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 96.1 | 96.1% |
| 17 Aug 2026, 13:35 | 85.8 | 85.8% |
| 6 Jul 2026, 11:48 | 88 | 88% |
| 2 Jun 2026, 12:49 | 97.1 | 97.1% |
| 12 May 2026, 13:31 | 99.5 | 99.5% |
| 24 Apr 2026, 12:30 | 98.5 | 98.5% |
| 11 Mar 2026, 10:06 | 97.2 | 97.2% |
| 4 Feb 2026, 12:13 | 101.1 | 101.1% |
| 16 Jan 2026, 11:30 | 100.2 | 100.2% |
| 5 Dec 2025, 11:25 | 98.8 | 98.8% |
| 21 Nov 2025, 12:44 | 98.8 | 98.8% |
| 23 Oct 2025, 13:44 | 97.4 | 97.4% |
| 10 Sep 2025, 11:37 | 99.1 | 99.1% |
| 12 Aug 2025, 10:15 | 99 | 99% |
| 18 Jul 2025, 12:13 | 100.5 | 100.5% |
| 25 Jun 2025, 14:06 | 97.5 | 97.5% |
| 29 May 2025, 10:11 | 94.8 | 94.8% |
| 3 Apr 2025, 12:32 | 97.6 | 97.6% |
| 6 Mar 2025, 12:42 | 99.8 | 99.8% |
| 7 Feb 2025, 13:14 | 99.3 | 99.3% |
| 23 Jan 2025, 13:09 | 11.8 | 11.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10 mg/l
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 10 | 10 mg/l |
| 17 Aug 2026, 13:35 | 8.3 | 8.3 mg/l |
| 6 Jul 2026, 11:48 | 8.61 | 8.61 mg/l |
| 2 Jun 2026, 12:49 | 9.89 | 9.89 mg/l |
| 12 May 2026, 13:31 | 10.9 | 10.9 mg/l |
| 24 Apr 2026, 12:30 | 11 | 11 mg/l |
| 11 Mar 2026, 10:06 | 11.4 | 11.4 mg/l |
| 4 Feb 2026, 12:13 | 12 | 12 mg/l |
| 16 Jan 2026, 11:30 | 12.3 | 12.3 mg/l |
| 5 Dec 2025, 11:25 | 11.7 | 11.7 mg/l |
| 21 Nov 2025, 12:44 | 12.4 | 12.4 mg/l |
| 23 Oct 2025, 13:44 | 10.8 | 10.8 mg/l |
| 10 Sep 2025, 11:37 | 10.3 | 10.3 mg/l |
| 12 Aug 2025, 10:15 | 9.98 | 9.98 mg/l |
| 18 Jul 2025, 12:13 | 9.98 | 9.98 mg/l |
| 25 Jun 2025, 14:06 | 9.95 | 9.95 mg/l |
| 29 May 2025, 10:11 | 10.1 | 10.1 mg/l |
| 3 Apr 2025, 12:32 | 10.8 | 10.8 mg/l |
| 6 Mar 2025, 12:42 | 11.9 | 11.9 mg/l |
| 7 Feb 2025, 13:14 | 12.6 | 12.6 mg/l |
| 23 Jan 2025, 13:09 | 1.44 | 1.44 mg/l |
Water temperature
code 0076 · °C
13.4 °C
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 13.4 | 13.4 °C |
| 17 Aug 2026, 13:35 | 16.8 | 16.8 °C |
| 6 Jul 2026, 11:48 | 16.3 | 16.3 °C |
| 2 Jun 2026, 12:49 | 14.4 | 14.4 °C |
| 12 May 2026, 13:31 | 11.3 | 11.3 °C |
| 24 Apr 2026, 12:30 | 10.4 | 10.4 °C |
| 11 Mar 2026, 10:06 | 8.5 | 8.5 °C |
| 4 Feb 2026, 12:13 | 7.9 | 7.9 °C |
| 16 Jan 2026, 11:30 | 6.6 | 6.6 °C |
| 5 Dec 2025, 11:25 | 8 | 8 °C |
| 21 Nov 2025, 12:44 | 5.7 | 5.7 °C |
| 23 Oct 2025, 13:44 | 10.6 | 10.6 °C |
| 10 Sep 2025, 11:37 | 13.4 | 13.4 °C |
| 12 Aug 2025, 10:15 | 14.9 | 14.9 °C |
| 18 Jul 2025, 12:13 | 15.6 | 15.6 °C |
| 25 Jun 2025, 14:06 | 14.3 | 14.3 °C |
| 29 May 2025, 10:11 | 12.6 | 12.6 °C |
| 3 Apr 2025, 12:32 | 10.7 | 10.7 °C |
| 6 Mar 2025, 12:42 | 7.7 | 7.7 °C |
| 7 Feb 2025, 13:14 | 5.2 | 5.2 °C |
| 23 Jan 2025, 13:09 | 6.7 | 6.7 °C |
pH
code 0061
6.92
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 6.92 | 6.92 |
| 17 Aug 2026, 13:35 | 6.85 | 6.85 |
| 6 Jul 2026, 11:48 | 6.87 | 6.87 |
| 2 Jun 2026, 12:49 | 7.06 | 7.06 |
| 12 May 2026, 13:31 | 6.99 | 6.99 |
| 24 Apr 2026, 12:30 | 7.17 | 7.17 |
| 11 Mar 2026, 10:06 | 6.83 | 6.83 |
| 4 Feb 2026, 12:13 | 7.03 | 7.03 |
| 16 Jan 2026, 11:30 | 7.16 | 7.16 |
| 5 Dec 2025, 11:25 | 7.07 | 7.07 |
| 21 Nov 2025, 12:44 | 6.83 | 6.83 |
| 23 Oct 2025, 13:44 | 6.81 | 6.81 |
| 10 Sep 2025, 11:37 | 7.04 | 7.04 |
| 12 Aug 2025, 10:15 | 6.9 | 6.9 |
| 18 Jul 2025, 12:13 | 7.26 | 7.26 |
| 25 Jun 2025, 14:06 | 6.81 | 6.81 |
| 29 May 2025, 10:11 | 6.88 | 6.88 |
| 3 Apr 2025, 12:32 | 7.75 | 7.75 |
| 6 Mar 2025, 12:42 | 6.95 | 6.95 |
| 7 Feb 2025, 13:14 | 7.45 | 7.45 |
| 23 Jan 2025, 13:09 | 7.25 | 7.25 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.002 mg/l (not detected above this)
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | <0.002 | below 0.002 mg/l (not detected above this) |
| 17 Aug 2026, 13:35 | <0.002 | below 0.002 mg/l (not detected above this) |
| 6 Jul 2026, 11:48 | 0.0087 | 0.0087 mg/l |
| 2 Jun 2026, 12:49 | <0.002 | below 0.002 mg/l (not detected above this) |
| 12 May 2026, 13:31 | 0.0087 | 0.0087 mg/l |
| 24 Apr 2026, 12:30 | 0.0025 | 0.0025 mg/l |
| 11 Mar 2026, 10:06 | <0.002 | below 0.002 mg/l (not detected above this) |
| 4 Feb 2026, 12:13 | <0.002 | below 0.002 mg/l (not detected above this) |
| 16 Jan 2026, 11:30 | <0.002 | below 0.002 mg/l (not detected above this) |
| 5 Dec 2025, 11:25 | 0.0045 | 0.0045 mg/l |
| 21 Nov 2025, 12:44 | <0.002 | below 0.002 mg/l (not detected above this) |
| 23 Oct 2025, 13:44 | <0.002 | below 0.002 mg/l (not detected above this) |
| 10 Sep 2025, 11:37 | 0.0034 | 0.0034 mg/l |
| 12 Aug 2025, 10:15 | <0.002 | below 0.002 mg/l (not detected above this) |
| 18 Jul 2025, 12:13 | 0.0076 | 0.0076 mg/l |
| 25 Jun 2025, 14:06 | 0.0026 | 0.0026 mg/l |
| 29 May 2025, 10:11 | 0.0026 | 0.0026 mg/l |
| 3 Apr 2025, 12:32 | <0.002 | below 0.002 mg/l (not detected above this) |
| 6 Mar 2025, 12:42 | <0.002 | below 0.002 mg/l (not detected above this) |
| 7 Feb 2025, 13:14 | 0.021 | 0.021 mg/l |
| 23 Jan 2025, 13:09 | 0.0035 | 0.0035 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.788 mg/l
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 0.788 | 0.788 mg/l |
| 17 Aug 2026, 13:35 | 0.859 | 0.859 mg/l |
| 6 Jul 2026, 11:48 | 0.849 | 0.849 mg/l |
| 2 Jun 2026, 12:49 | 0.64 | 0.64 mg/l |
| 12 May 2026, 13:31 | 0.889 | 0.889 mg/l |
| 24 Apr 2026, 12:30 | 0.909 | 0.909 mg/l |
| 11 Mar 2026, 10:06 | 0.699 | 0.699 mg/l |
| 4 Feb 2026, 12:13 | 0.569 | 0.569 mg/l |
| 16 Jan 2026, 11:30 | 0.729 | 0.729 mg/l |
| 5 Dec 2025, 11:25 | 0.759 | 0.759 mg/l |
| 21 Nov 2025, 12:44 | 0.879 | 0.879 mg/l |
| 23 Oct 2025, 13:44 | 0.899 | 0.899 mg/l |
| 10 Sep 2025, 11:37 | 0.849 | 0.849 mg/l |
| 12 Aug 2025, 10:15 | 0.959 | 0.959 mg/l |
| 18 Jul 2025, 12:13 | 0.879 | 0.879 mg/l |
| 25 Jun 2025, 14:06 | 0.949 | 0.949 mg/l |
| 29 May 2025, 10:11 | 0.949 | 0.949 mg/l |
| 3 Apr 2025, 12:32 | 0.999 | 0.999 mg/l |
| 6 Mar 2025, 12:42 | 1.1 | 1.1 mg/l |
| 7 Feb 2025, 13:14 | 1.1 | 1.1 mg/l |
| 23 Jan 2025, 13:09 | 0.948 | 0.948 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0051 mg/l
Sampled 10 Sep 2026, 21 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 0.0051 | 0.0051 mg/l |
| 17 Aug 2026, 13:35 | 0.0062 | 0.0062 mg/l |
| 6 Jul 2026, 11:48 | 0.0074 | 0.0074 mg/l |
| 2 Jun 2026, 12:49 | 0.016 | 0.016 mg/l |
| 12 May 2026, 13:31 | 0.006 | 0.006 mg/l |
| 24 Apr 2026, 12:30 | 0.004 | 0.004 mg/l |
| 11 Mar 2026, 10:06 | 0.0082 | 0.0082 mg/l |
| 4 Feb 2026, 12:13 | 0.012 | 0.012 mg/l |
| 16 Jan 2026, 11:30 | 0.012 | 0.012 mg/l |
| 5 Dec 2025, 11:25 | 0.0089 | 0.0089 mg/l |
| 21 Nov 2025, 12:44 | 0.0055 | 0.0055 mg/l |
| 23 Oct 2025, 13:44 | 0.0057 | 0.0057 mg/l |
| 10 Sep 2025, 11:37 | 0.011 | 0.011 mg/l |
| 12 Aug 2025, 10:15 | 0.0057 | 0.0057 mg/l |
| 18 Jul 2025, 12:13 | 0.007 | 0.007 mg/l |
| 29 May 2025, 10:11 | 0.0044 | 0.0044 mg/l |
| 3 Apr 2025, 12:32 | 0.0035 | 0.0035 mg/l |
| 6 Mar 2025, 12:42 | 0.0041 | 0.0041 mg/l |
| 7 Feb 2025, 13:14 | 0.0053 | 0.0053 mg/l |
| 23 Jan 2025, 13:09 | 0.034 | 0.034 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
121 µS/cm
Sampled 10 Sep 2026, 21 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 12:31 | 121 | 121 µS/cm |
| 17 Aug 2026, 13:35 | 115 | 115 µS/cm |
| 6 Jul 2026, 11:48 | 118 | 118 µS/cm |
| 2 Jun 2026, 12:49 | 131 | 131 µS/cm |
| 12 May 2026, 13:31 | 114 | 114 µS/cm |
| 24 Apr 2026, 12:30 | 114 | 114 µS/cm |
| 11 Mar 2026, 10:06 | 108 | 108 µS/cm |
| 4 Feb 2026, 12:13 | 104 | 104 µS/cm |
| 16 Jan 2026, 11:30 | 111 | 111 µS/cm |
| 5 Dec 2025, 11:25 | 116 | 116 µS/cm |
| 21 Nov 2025, 12:44 | 120 | 120 µS/cm |
| 23 Oct 2025, 13:44 | 120 | 120 µS/cm |
| 10 Sep 2025, 11:37 | 118 | 118 µS/cm |
| 12 Aug 2025, 10:15 | 113 | 113 µS/cm |
| 18 Jul 2025, 12:13 | 113 | 113 µS/cm |
| 25 Jun 2025, 14:06 | 111 | 111 µS/cm |
| 29 May 2025, 10:11 | 112 | 112 µS/cm |
| 3 Apr 2025, 12:32 | 113 | 113 µS/cm |
| 6 Mar 2025, 12:42 | 113 | 113 µS/cm |
| 7 Feb 2025, 13:14 | 119 | 119 µS/cm |
| 23 Jan 2025, 13:09 | 105 | 105 µS/cm |
Everything measured here
112 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 112 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 21 | Jan 2025 – Sep 2026 | 96.1% 10 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Jan 2025 – Sep 2026 | 10 mg/l 10 Sep 2026 |
| Temperature of Water 0076 | River water | 21 | Jan 2025 – Sep 2026 | 13.4 °C 10 Sep 2026 |
| pH 0061 | River water | 21 | Jan 2025 – Sep 2026 | 6.92 10 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 21 | Jan 2025 – Sep 2026 | below 0.002 mg/l 10 Sep 2026 |
| Nitrate as N 0117 | River water | 21 | Jan 2025 – Sep 2026 | 0.788 mg/l 10 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Jan 2025 – Sep 2026 | 0.0051 mg/l 10 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Jan 2025 – Sep 2026 | 121 µS/cm 10 Sep 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Sep 2025 – Mar 2026 | below 0.004 µg/l 11 Mar 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 11 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 11 Mar 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 11 Mar 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 11 Mar 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 11 Mar 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 11 Mar 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Jan 2025 – Sep 2026 | below 8 mg/l 10 Sep 2026 |
| Aluminium, Dissolved 6037 | River water | 4 | Apr 2025 – Jan 2026 | 83 µg/l 16 Jan 2026 |
| Aminomethylphosphonic acid 7125 | River water | 12 | Apr 2025 – Mar 2026 | below 0.1 µg/l 11 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Jan 2025 – Sep 2026 | below 0.00001 mg/l 10 Sep 2026 |
| Barium, Dissolved 9446 | River water | 4 | Apr 2025 – Jan 2026 | below 10 µg/l 16 Jan 2026 |
| Boron, Dissolved 9447 | River water | 4 | Apr 2025 – Jan 2026 | below 100 µg/l 16 Jan 2026 |
| Cadmium, Dissolved 0106 | River water | 4 | Apr 2025 – Jan 2026 | 0.038 µg/l 16 Jan 2026 |
| Calcium, Dissolved 0239 | River water | 4 | Apr 2025 – Jan 2026 | 6.2 mg/l 16 Jan 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 21 | Jan 2025 – Sep 2026 | 3.6 mg/l 10 Sep 2026 |
| Chloride 0172 | River water | 21 | Jan 2025 – Sep 2026 | 25 mg/l 10 Sep 2026 |
| Chromium, Dissolved 3409 | River water | 4 | Apr 2025 – Jan 2026 | 0.5 µg/l 16 Jan 2026 |
| Copper : BLM Bioavailable 4821 | River water | 4 | Apr 2025 – Jan 2026 | 0.06 µg/l 16 Jan 2026 |
| Copper, Dissolved 6450 | River water | 4 | Apr 2025 – Jan 2026 | 1.3 µg/l 16 Jan 2026 |
| eDNA Report 3047 | River water | 2 | Jan 2025 – Apr 2025 | 1 text result 1 Apr 2025 |
| Flow Type 2896 | River water | 17 | Jan 2025 – Sep 2026 | Moderate Flow 10 Sep 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 1 | May 2026 – May 2026 | 1 text result 12 May 2026 |
| Glyphosate 3007 | River water | 12 | Apr 2025 – Mar 2026 | below 0.1 µg/l 11 Mar 2026 |
| Hardness, Calcium 0163 | River water | 4 | Apr 2025 – Jan 2026 | 15.5 mg/l 16 Jan 2026 |
| Hardness, Total as CaCO3 0158 | River water | 4 | Apr 2025 – Jan 2026 | 25.8 mg/l 16 Jan 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Iron, Dissolved 6460 | River water | 4 | Apr 2025 – Jan 2026 | 140 µg/l 16 Jan 2026 |
| Lead : BLM Bioavailable 3377 | River water | 4 | Apr 2025 – Jan 2026 | 0.21 µg/l 16 Jan 2026 |
| Lead, Dissolved 0052 | River water | 4 | Apr 2025 – Jan 2026 | 1.1 µg/l 16 Jan 2026 |
| Lithium, Dissolved 4201 | River water | 4 | Apr 2025 – Jan 2026 | below 100 µg/l 16 Jan 2026 |
| Magnesium, Dissolved 0235 | River water | 4 | Apr 2025 – Jan 2026 | 2.5 mg/l 16 Jan 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 4 | Apr 2025 – Jan 2026 | 3.7 µg/l 16 Jan 2026 |
| Manganese, Dissolved 6458 | River water | 4 | Apr 2025 – Jan 2026 | 11 µg/l 16 Jan 2026 |
| Mitochondrial marker : Fish 12S 2857 | River water | 2 | Jan 2025 – Apr 2025 | Present 1 Apr 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Sep 2025 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Sep 2025 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| Nickel : BLM Bioavailable 3878 | River water | 4 | Apr 2025 – Jan 2026 | 0.8 µg/l 16 Jan 2026 |
| Nickel, Dissolved 3410 | River water | 4 | Apr 2025 – Jan 2026 | 2.8 µg/l 16 Jan 2026 |
| Nitrite as N 0118 | River water | 21 | Jan 2025 – Sep 2026 | below 0.002 mg/l 10 Sep 2026 |
| Nitrogen, Total as N 9686 | River water | 21 | Jan 2025 – Sep 2026 | 1.2 mg/l 10 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Jan 2025 – Sep 2026 | 0.79 mg/l 10 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorobutanoic acid 2995 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorodecanoic acid 8892 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Sep 2025 – Mar 2026 | below 0.005 µg/l 11 Mar 2026 |
| Perfluorododecanoic acid 8894 | River water | 2 | Sep 2025 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorohexanoic acid 8888 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorononanoic acid 8891 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Sep 2025 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorooctanoic acid 8890 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Sep 2025 – Mar 2026 | below 0.0005 µg/l 11 Mar 2026 |
| Perfluoropentanoic acid 8887 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Sep 2025 – Mar 2026 | below 0.006 µg/l 11 Mar 2026 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Sep 2025 – Mar 2026 | below 0.002 µg/l 11 Mar 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Sep 2025 – Mar 2026 | below 0.004 µg/l 11 Mar 2026 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Sep 2025 – Mar 2026 | below 0.001 µg/l 11 Mar 2026 |
| Phosphorus, Total as P 0348 | River water | 21 | Jan 2025 – Sep 2026 | 0.01 mg/l 10 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 4 | Apr 2025 – Jan 2026 | 0.9 mg/l 16 Jan 2026 |
| Silica, reactive as SiO2 0182 | River water | 21 | Jan 2025 – Sep 2026 | 14 mg/l 10 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 4 | Apr 2025 – Jan 2026 | 9.9 mg/l 16 Jan 2026 |
| Solids, Suspended at 105 C 0135 | River water | 21 | Jan 2025 – Sep 2026 | 4.5 mg/l 10 Sep 2026 |
| Strontium, Filtered 6693 | River water | 4 | Apr 2025 – Jan 2026 | below 20 µg/l 16 Jan 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 4 | Apr 2025 – Jan 2026 | below 10 mg/l 16 Jan 2026 |
| Trifluoroacetic acid 2872 | River water | 1 | Mar 2026 – Mar 2026 | 0.36 µg/l 11 Mar 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 4 | Apr 2025 – Jan 2026 | 1.6 µg/l 16 Jan 2026 |
| Zinc, Dissolved 3408 | River water | 4 | Apr 2025 – Jan 2026 | 3.4 µg/l 16 Jan 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.