Het Hill Burn upstream of confluence of Breamish
EA name: HET HILL BURN UPSTREAM OF CONF OF BREAMI (also listed as “HET HILL BURN UPSTREAM OF CONF OF BREAMISH”)
Environment Agency sampling point NE-SSN0045 · 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
- 2 Sep 2026, 09:2829 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 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 397508, 615064As published, to the nearest 1 m. Open in a map
- River, by its own name
- Het Hill Burn
- River, by the map
- Not placedTwo watercourses within reach (2 m and 50 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) (35 samples)
15 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
110.2%
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 110.2 | 110.2% |
| 5 Mar 2026, 11:17 | 107.9 | 107.9% |
| 6 Feb 2026, 09:08 | 99.4 | 99.4% |
| 12 Jan 2026, 09:59 | 96.5 | 96.5% |
| 5 Dec 2025, 10:08 | 96.4 | 96.4% |
| 5 Nov 2025, 09:22 | 91.8 | 91.8% |
| 3 Apr 2025, 11:10 | 113.9 | 113.9% |
| 4 Mar 2025, 10:26 | 104.3 | 104.3% |
| 6 Feb 2025, 08:29 | 99.7 | 99.7% |
| 23 Jan 2025, 10:52 | 101.3 | 101.3% |
| 5 Dec 2024, 08:16 | 96.6 | 96.6% |
| 4 Nov 2024, 08:44 | 90.6 | 90.6% |
| 4 Jun 2024, 09:28 | 94.2 | 94.2% |
| 7 May 2024, 09:58 | 95.2 | 95.2% |
| 5 Apr 2024, 09:34 | 100.3 | 100.3% |
| 11 Mar 2024, 08:10 | 96.7 | 96.7% |
| 7 Feb 2024, 09:20 | 96.7 | 96.7% |
| 8 Jan 2024, 12:09 | 99.7 | 99.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
13.6 mg/l
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 13.6 | 13.6 mg/l |
| 5 Mar 2026, 11:17 | 12.9 | 12.9 mg/l |
| 6 Feb 2026, 09:08 | 13.3 | 13.3 mg/l |
| 12 Jan 2026, 09:59 | 13.2 | 13.2 mg/l |
| 5 Dec 2025, 10:08 | 12.2 | 12.2 mg/l |
| 5 Nov 2025, 09:22 | 10.4 | 10.4 mg/l |
| 3 Apr 2025, 11:10 | 13.1 | 13.1 mg/l |
| 4 Mar 2025, 10:26 | 13 | 13 mg/l |
| 6 Feb 2025, 08:29 | 14 | 14 mg/l |
| 23 Jan 2025, 10:52 | 13.8 | 13.8 mg/l |
| 5 Dec 2024, 08:16 | 11.9 | 11.9 mg/l |
| 4 Nov 2024, 08:44 | 10.5 | 10.5 mg/l |
| 4 Jun 2024, 09:28 | 10.1 | 10.1 mg/l |
| 7 May 2024, 09:58 | 10.7 | 10.7 mg/l |
| 5 Apr 2024, 09:34 | 12.6 | 12.6 mg/l |
| 11 Mar 2024, 08:10 | 12.5 | 12.5 mg/l |
| 7 Feb 2024, 09:20 | 13.2 | 13.2 mg/l |
| 8 Jan 2024, 12:09 | 13.2 | 13.2 mg/l |
Water temperature
code 0076 · °C
6.2 °C
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 6.2 | 6.2 °C |
| 5 Mar 2026, 11:17 | 7.5 | 7.5 °C |
| 6 Feb 2026, 09:08 | 3.3 | 3.3 °C |
| 12 Jan 2026, 09:59 | 2.3 | 2.3 °C |
| 5 Dec 2025, 10:08 | 5.3 | 5.3 °C |
| 5 Nov 2025, 09:22 | 9.9 | 9.9 °C |
| 3 Apr 2025, 11:10 | 9.2 | 9.2 °C |
| 4 Mar 2025, 10:26 | 5.9 | 5.9 °C |
| 6 Feb 2025, 08:29 | 1.5 | 1.5 °C |
| 23 Jan 2025, 10:52 | 2.6 | 2.6 °C |
| 5 Dec 2024, 08:16 | 6.2 | 6.2 °C |
| 4 Nov 2024, 08:44 | 8.9 | 8.9 °C |
| 4 Jun 2024, 09:28 | 12.3 | 12.3 °C |
| 7 May 2024, 09:58 | 10.2 | 10.2 °C |
| 5 Apr 2024, 09:34 | 5.6 | 5.6 °C |
| 11 Mar 2024, 08:10 | 4.4 | 4.4 °C |
| 7 Feb 2024, 09:20 | 2.5 | 2.5 °C |
| 8 Jan 2024, 12:09 | 3.6 | 3.6 °C |
pH
code 0061
8.25
Sampled 10 Apr 2026, 6 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 8.25 | 8.25 |
| 5 Mar 2026, 11:17 | 7.62 | 7.62 |
| 6 Feb 2026, 09:08 | 6.54 | 6.54 |
| 12 Jan 2026, 09:59 | 7.02 | 7.02 |
| 5 Dec 2025, 10:08 | 6.96 | 6.96 |
| 5 Nov 2025, 09:22 | 7.32 | 7.32 |
| 3 Apr 2025, 11:10 | 7.97 | 7.97 |
| 4 Mar 2025, 10:26 | 7.76 | 7.76 |
| 6 Feb 2025, 08:29 | 7.85 | 7.85 |
| 23 Jan 2025, 10:52 | 7.73 | 7.73 |
| 5 Dec 2024, 08:16 | 7.14 | 7.14 |
| 4 Nov 2024, 08:44 | 7.16 | 7.16 |
| 4 Jun 2024, 09:28 | 7.54 | 7.54 |
| 7 May 2024, 09:58 | 7.77 | 7.77 |
| 5 Apr 2024, 09:34 | 6.71 | 6.71 |
| 7 Feb 2024, 09:20 | 7.84 | 7.84 |
| 8 Jan 2024, 12:09 | 7.19 | 7.19 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.002 mg/l (not detected above this)
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | <0.002 | below 0.002 mg/l (not detected above this) |
| 5 Mar 2026, 11:17 | <0.002 | below 0.002 mg/l (not detected above this) |
| 6 Feb 2026, 09:08 | <0.002 | below 0.002 mg/l (not detected above this) |
| 12 Jan 2026, 09:59 | 0.012 | 0.012 mg/l |
| 5 Dec 2025, 10:08 | 0.003 | 0.003 mg/l |
| 5 Nov 2025, 09:22 | 0.0021 | 0.0021 mg/l |
| 3 Apr 2025, 11:10 | 0.048 | 0.048 mg/l |
| 4 Mar 2025, 10:26 | <0.002 | below 0.002 mg/l (not detected above this) |
| 6 Feb 2025, 08:29 | 0.0065 | 0.0065 mg/l |
| 23 Jan 2025, 10:52 | 0.0025 | 0.0025 mg/l |
| 5 Dec 2024, 08:16 | <0.002 | below 0.002 mg/l (not detected above this) |
| 4 Nov 2024, 08:44 | 0.0058 | 0.0058 mg/l |
| 4 Jun 2024, 09:28 | <0.002 | below 0.002 mg/l (not detected above this) |
| 7 May 2024, 09:58 | 0.0031 | 0.0031 mg/l |
| 5 Apr 2024, 09:34 | 0.0035 | 0.0035 mg/l |
| 11 Mar 2024, 08:10 | 0.0059 | 0.0059 mg/l |
| 7 Feb 2024, 09:20 | 0.0049 | 0.0049 mg/l |
| 8 Jan 2024, 12:09 | 0.0058 | 0.0058 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.004 mg/l (not detected above this)
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | <0.004 | below 0.004 mg/l (not detected above this) |
| 5 Mar 2026, 11:17 | 0.043 | 0.043 mg/l |
| 6 Feb 2026, 09:08 | 0.269 | 0.269 mg/l |
| 12 Jan 2026, 09:59 | 0.339 | 0.339 mg/l |
| 5 Dec 2025, 10:08 | 0.109 | 0.109 mg/l |
| 5 Nov 2025, 09:22 | 0.259 | 0.259 mg/l |
| 3 Apr 2025, 11:10 | 0.042 | 0.042 mg/l |
| 4 Mar 2025, 10:26 | 0.039 | 0.039 mg/l |
| 6 Feb 2025, 08:29 | 0.139 | 0.139 mg/l |
| 23 Jan 2025, 10:52 | 0.139 | 0.139 mg/l |
| 5 Dec 2024, 08:16 | 0.099 | 0.099 mg/l |
| 4 Nov 2024, 08:44 | 0.072 | 0.072 mg/l |
| 4 Jun 2024, 09:28 | 0.007 | 0.007 mg/l |
| 7 May 2024, 09:58 | 0.0078 | 0.0078 mg/l |
| 5 Apr 2024, 09:34 | 0.08 | 0.08 mg/l |
| 11 Mar 2024, 08:10 | 0.199 | 0.199 mg/l |
| 7 Feb 2024, 09:20 | 0.139 | 0.139 mg/l |
| 8 Jan 2024, 12:09 | 0.149 | 0.149 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0015 mg/l
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 0.0015 | 0.0015 mg/l |
| 5 Mar 2026, 11:17 | 0.0035 | 0.0035 mg/l |
| 6 Feb 2026, 09:08 | 0.0058 | 0.0058 mg/l |
| 12 Jan 2026, 09:59 | 0.0063 | 0.0063 mg/l |
| 5 Dec 2025, 10:08 | 0.0048 | 0.0048 mg/l |
| 5 Nov 2025, 09:22 | 0.0023 | 0.0023 mg/l |
| 3 Apr 2025, 11:10 | 0.041 | 0.041 mg/l |
| 4 Mar 2025, 10:26 | 0.005 | 0.005 mg/l |
| 6 Feb 2025, 08:29 | 0.0067 | 0.0067 mg/l |
| 23 Jan 2025, 10:52 | 0.0087 | 0.0087 mg/l |
| 5 Dec 2024, 08:16 | 0.0096 | 0.0096 mg/l |
| 4 Nov 2024, 08:44 | 0.0062 | 0.0062 mg/l |
| 4 Jun 2024, 09:28 | 0.0057 | 0.0057 mg/l |
| 7 May 2024, 09:58 | 0.0073 | 0.0073 mg/l |
| 5 Apr 2024, 09:34 | 0.0084 | 0.0084 mg/l |
| 11 Mar 2024, 08:10 | 0.0041 | 0.0041 mg/l |
| 7 Feb 2024, 09:20 | 0.0081 | 0.0081 mg/l |
| 8 Jan 2024, 12:09 | 0.01 | 0.01 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
96 µS/cm
Sampled 10 Apr 2026, 6 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Apr 2026, 10:59 | 96 | 96 µS/cm |
| 5 Mar 2026, 11:17 | 83 | 83 µS/cm |
| 6 Feb 2026, 09:08 | 64 | 64 µS/cm |
| 12 Jan 2026, 09:59 | 69 | 69 µS/cm |
| 5 Dec 2025, 10:08 | 67 | 67 µS/cm |
| 5 Nov 2025, 09:22 | 97 | 97 µS/cm |
| 3 Apr 2025, 11:10 | 110 | 110 µS/cm |
| 4 Mar 2025, 10:26 | 87 | 87 µS/cm |
| 6 Feb 2025, 08:29 | 84 | 84 µS/cm |
| 23 Jan 2025, 10:52 | 78 | 78 µS/cm |
| 5 Dec 2024, 08:16 | 57 | 57 µS/cm |
| 4 Nov 2024, 08:44 | 78 | 78 µS/cm |
| 4 Jun 2024, 09:28 | 70 | 70 µS/cm |
| 7 May 2024, 09:58 | 67 | 67 µS/cm |
| 5 Apr 2024, 09:34 | 32 | 32 µS/cm |
| 11 Mar 2024, 08:10 | 60 | 60 µS/cm |
| 7 Feb 2024, 09:20 | 70 | 70 µS/cm |
| 8 Jan 2024, 12:09 | 53 | 53 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 | 18 | Jan 2024 – Apr 2026 | 110.2% 10 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Jan 2024 – Apr 2026 | 13.6 mg/l 10 Apr 2026 |
| Temperature of Water 0076 | River water | 18 | Jan 2024 – Apr 2026 | 6.2 °C 10 Apr 2026 |
| pH 0061 | River water | 17 | Jan 2024 – Apr 2026 | 8.25 10 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 18 | Jan 2024 – Apr 2026 | below 0.002 mg/l 10 Apr 2026 |
| Nitrate as N 0117 | River water | 18 | Jan 2024 – Apr 2026 | below 0.004 mg/l 10 Apr 2026 |
| Orthophosphate, reactive as P 0180 | River water | 18 | Jan 2024 – Apr 2026 | 0.0015 mg/l 10 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 18 | Jan 2024 – Apr 2026 | 96 µS/cm 10 Apr 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Apr 2025 – Apr 2025 | below 0.004 µg/l 3 Apr 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Apr 2025 – Apr 2025 | below 0.005 µg/l 3 Apr 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 18 | Jan 2024 – Apr 2026 | 31 mg/l 10 Apr 2026 |
| Aluminium, Dissolved 6037 | River water | 2 | Apr 2025 – Jan 2026 | 170 µg/l 12 Jan 2026 |
| Aminomethylphosphonic acid 7125 | River water | 6 | Apr 2025 – Mar 2026 | below 0.1 µg/l 5 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Jan 2024 – Apr 2026 | below 0.00003 mg/l 10 Apr 2026 |
| Barium, Dissolved 9446 | River water | 2 | Apr 2025 – Jan 2026 | 18 µg/l 12 Jan 2026 |
| Boron, Dissolved 9447 | River water | 2 | Apr 2025 – Jan 2026 | below 100 µg/l 12 Jan 2026 |
| Cadmium, Dissolved 0106 | River water | 2 | Apr 2025 – Jan 2026 | 0.049 µg/l 12 Jan 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Apr 2025 – Jan 2026 | 3.9 mg/l 12 Jan 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 12 | Nov 2024 – Apr 2026 | 6.8 mg/l 10 Apr 2026 |
| Chloride 0172 | River water | 18 | Jan 2024 – Apr 2026 | 8 mg/l 10 Apr 2026 |
| Chromium, Dissolved 3409 | River water | 2 | Apr 2025 – Jan 2026 | below 0.5 µg/l 12 Jan 2026 |
| Copper : BLM Bioavailable 4821 | River water | 2 | Apr 2025 – Jan 2026 | 0.03 µg/l 12 Jan 2026 |
| Copper, Dissolved 6450 | River water | 2 | Apr 2025 – Jan 2026 | 0.89 µg/l 12 Jan 2026 |
| eDNA Report 3047 | River water | 2 | May 2024 – Jan 2025 | 1 text result 23 Jan 2025 |
| Environmental DNA Filtration 3064 | River water | 1 | May 2024 – May 2024 | DNA Stored 7 May 2024 |
| Flow Type 2896 | River water | 24 | Jan 2024 – Sep 2026 | Dry 2 Sep 2026 |
| Glyphosate 3007 | River water | 6 | Apr 2025 – Mar 2026 | below 0.1 µg/l 5 Mar 2026 |
| Hardness, Calcium 0163 | River water | 2 | Apr 2025 – Jan 2026 | 9.74 mg/l 12 Jan 2026 |
| Hardness, Total as CaCO3 0158 | River water | 2 | Apr 2025 – Jan 2026 | 15.9 mg/l 12 Jan 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Iron, Dissolved 6460 | River water | 2 | Apr 2025 – Jan 2026 | 120 µg/l 12 Jan 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 2 | Jan 2026 – Apr 2026 | 1 text result 10 Apr 2026 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Apr 2025 – Jan 2026 | 0.12 µg/l 12 Jan 2026 |
| Lead, Dissolved 0052 | River water | 2 | Apr 2025 – Jan 2026 | 0.88 µg/l 12 Jan 2026 |
| Lithium, Dissolved 4201 | River water | 2 | Apr 2025 – Jan 2026 | below 100 µg/l 12 Jan 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Apr 2025 – Jan 2026 | 1.5 mg/l 12 Jan 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 2 | Apr 2025 – Jan 2026 | 2.6 µg/l 12 Jan 2026 |
| Manganese, Dissolved 6458 | River water | 2 | Apr 2025 – Jan 2026 | below 10 µg/l 12 Jan 2026 |
| Mitochondrial marker : Fish 12S 2857 | River water | 2 | May 2024 – Jan 2025 | Not found 23 Jan 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Apr 2025 – Jan 2026 | 0.18 µg/l 12 Jan 2026 |
| Nickel, Dissolved 3410 | River water | 2 | Apr 2025 – Jan 2026 | 0.81 µg/l 12 Jan 2026 |
| Nitrite as N 0118 | River water | 18 | Jan 2024 – Apr 2026 | below 0.001 mg/l 10 Apr 2026 |
| Nitrogen, Total as N 9686 | River water | 17 | Jan 2024 – Apr 2026 | 0.4 mg/l 10 Apr 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 18 | Jan 2024 – Apr 2026 | below 0.005 mg/l 10 Apr 2026 |
| No flow /No sample 7668 | River water | 15 | Jul 2024 – Sep 2026 | No flow/discharge at sampling point 2 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Apr 2025 – Apr 2025 | below 0.005 µg/l 3 Apr 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Apr 2025 – Apr 2025 | below 0.0005 µg/l 3 Apr 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Apr 2025 – Apr 2025 | below 0.001 µg/l 3 Apr 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Apr 2025 – Apr 2025 | below 0.005 µg/l 3 Apr 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Apr 2025 – Apr 2025 | below 0.004 µg/l 3 Apr 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Apr 2025 – Apr 2025 | below 0.002 µg/l 3 Apr 2025 |
| Phosphorus, Total as P 0348 | River water | 17 | Jan 2024 – Apr 2026 | 0.011 mg/l 10 Apr 2026 |
| Potassium, Dissolved 0209 | River water | 2 | Apr 2025 – Jan 2026 | 0.88 mg/l 12 Jan 2026 |
| Preparation: DNA 5923 | River water | 1 | May 2024 – May 2024 | Done 7 May 2024 |
| Silica, reactive as SiO2 0182 | River water | 18 | Jan 2024 – Apr 2026 | 5.2 mg/l 10 Apr 2026 |
| Sodium, Dissolved 0205 | River water | 2 | Apr 2025 – Jan 2026 | 6.4 mg/l 12 Jan 2026 |
| Solids, Suspended at 105 C 0135 | River water | 18 | Jan 2024 – Apr 2026 | below 3 mg/l 10 Apr 2026 |
| Strontium, Filtered 6693 | River water | 2 | Apr 2025 – Jan 2026 | 22 µg/l 12 Jan 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 2 | Apr 2025 – Jan 2026 | below 10 mg/l 12 Jan 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 2 | Apr 2025 – Jan 2026 | 2.4 µg/l 12 Jan 2026 |
| Zinc, Dissolved 3408 | River water | 2 | Apr 2025 – Jan 2026 | 6.5 µg/l 12 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.