Aylesford Brook at Aylesford Bridge, Aylesford
EA name: AYLESFORD BK AT AYLESFORD BRG, AYLESFORD (also listed as “AYLESFORD BROOK AT AYLESFORD BRIDGE, AYLESFORD”)
Environment Agency sampling point MD-33322590 · 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
- 14 May 2026, 14:335 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 19 Oct 2023 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 328030, 301631As published, to the nearest 1 m. Open in a map
- River, by its own name
- Aylesford Brook
- River, by the map
- Aylesford BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Pont-Y-Gaer River Station On the Camlad · 11 km along the river
- Why it was sampled
- Monitoring (national agency policy) (10 samples)
Environmental monitoring statutory (EU directives) (9 samples)
Unplanned reactive monitoring (pollution incidents) (5 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.1%
Sampled 14 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 96.1 | 96.1% |
| 10 Apr 2026, 10:08 | 96.7 | 96.7% |
| 6 Mar 2026, 10:16 | 91.5 | 91.5% |
| 11 Feb 2026, 08:58 | 94.1 | 94.1% |
| 28 Jan 2026, 11:19 | 95 | 95% |
| 17 Dec 2025, 11:45 | 95.6 | 95.6% |
| 27 Oct 2025, 11:52 | 88.6 | 88.6% |
| 4 Jul 2025, 12:54 | 90 | 90% |
| 14 May 2025, 12:24 | 91.9 | 91.9% |
| 12 Mar 2025, 10:08 | 97.7 | 97.7% |
| 10 Feb 2025, 09:51 | 101 | 101% |
| 29 Nov 2024, 12:27 | 94.3 | 94.3% |
| 28 Oct 2024, 11:35 | 88 | 88% |
| 25 Sep 2024, 09:51 | 91.9 | 91.9% |
| 29 Aug 2024, 13:17 | 87.3 | 87.3% |
| 15 Jul 2024, 12:16 | 92.1 | 92.1% |
| 21 Jun 2024, 10:33 | 100.2 | 100.2% |
| 6 Mar 2024, 10:42 | 95.4 | 95.4% |
| 5 Feb 2024, 10:28 | 93.6 | 93.6% |
| 12 Jan 2024, 15:19 | 89.1 | 89.1% |
| 1 Dec 2023, 12:18 | 90.1 | 90.1% |
| 3 Nov 2023, 11:18 | 89.8 | 89.8% |
| 19 Oct 2023, 10:10 | 87.8 | 87.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.6 mg/l
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 10.6 | 10.6 mg/l |
| 10 Apr 2026, 10:08 | 11.5 | 11.5 mg/l |
| 6 Mar 2026, 10:16 | 11.1 | 11.1 mg/l |
| 11 Feb 2026, 08:58 | 11.2 | 11.2 mg/l |
| 28 Jan 2026, 11:19 | 11.8 | 11.8 mg/l |
| 17 Dec 2025, 11:45 | 11.4 | 11.4 mg/l |
| 27 Oct 2025, 11:52 | 10.2 | 10.2 mg/l |
| 4 Jul 2025, 12:54 | 8.96 | 8.96 mg/l |
| 14 May 2025, 12:24 | 9.57 | 9.57 mg/l |
| 12 Mar 2025, 10:08 | 12.2 | 12.2 mg/l |
| 10 Feb 2025, 09:51 | 12.9 | 12.9 mg/l |
| 29 Nov 2024, 12:27 | 11.2 | 11.2 mg/l |
| 28 Oct 2024, 11:35 | 9.42 | 9.42 mg/l |
| 25 Sep 2024, 09:51 | 10.1 | 10.1 mg/l |
| 29 Aug 2024, 13:17 | 8.86 | 8.86 mg/l |
| 15 Jul 2024, 12:16 | 9.45 | 9.45 mg/l |
| 21 Jun 2024, 10:33 | 10.7 | 10.7 mg/l |
| 6 Mar 2024, 10:42 | 12.1 | 12.1 mg/l |
| 5 Feb 2024, 10:28 | 11 | 11 mg/l |
| 12 Jan 2024, 15:19 | 11.2 | 11.2 mg/l |
| 3 Nov 2023, 11:18 | 10.1 | 10.1 mg/l |
| 19 Oct 2023, 10:10 | 9.33 | 9.33 mg/l |
Water temperature
code 0076 · °C
10.8 °C
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 10.8 | 10.8 °C |
| 10 Apr 2026, 10:08 | 7.9 | 7.9 °C |
| 6 Mar 2026, 10:16 | 7.1 | 7.1 °C |
| 11 Feb 2026, 08:58 | 7.9 | 7.9 °C |
| 28 Jan 2026, 11:19 | 5.9 | 5.9 °C |
| 17 Dec 2025, 11:45 | 7.7 | 7.7 °C |
| 27 Oct 2025, 11:52 | 9.3 | 9.3 °C |
| 4 Jul 2025, 12:54 | 15.5 | 15.5 °C |
| 14 May 2025, 12:24 | 13.4 | 13.4 °C |
| 12 Mar 2025, 10:08 | 5.8 | 5.8 °C |
| 10 Feb 2025, 09:51 | 5 | 5 °C |
| 29 Nov 2024, 12:27 | 8 | 8 °C |
| 28 Oct 2024, 11:35 | 12.2 | 12.2 °C |
| 25 Sep 2024, 09:51 | 11.2 | 11.2 °C |
| 29 Aug 2024, 13:17 | 14.6 | 14.6 °C |
| 15 Jul 2024, 12:16 | 14.1 | 14.1 °C |
| 21 Jun 2024, 10:33 | 12.4 | 12.4 °C |
| 6 Mar 2024, 10:42 | 5.2 | 5.2 °C |
| 5 Feb 2024, 10:28 | 8.1 | 8.1 °C |
| 12 Jan 2024, 15:19 | 5.4 | 5.4 °C |
| 3 Nov 2023, 11:18 | 10 | 10 °C |
| 19 Oct 2023, 10:10 | 12.5 | 12.5 °C |
pH
code 0061
7.65
Sampled 14 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 7.65 | 7.65 |
| 10 Apr 2026, 10:08 | 7.65 | 7.65 |
| 6 Mar 2026, 10:16 | 7.85 | 7.85 |
| 11 Feb 2026, 08:58 | 7.11 | 7.11 |
| 28 Jan 2026, 11:19 | 7.79 | 7.79 |
| 17 Dec 2025, 11:45 | 7.69 | 7.69 |
| 27 Oct 2025, 11:52 | 7.67 | 7.67 |
| 4 Jul 2025, 12:54 | 7.81 | 7.81 |
| 14 May 2025, 12:24 | 7.69 | 7.69 |
| 12 Mar 2025, 10:08 | 7.66 | 7.66 |
| 10 Feb 2025, 09:51 | 8.26 | 8.26 |
| 29 Nov 2024, 12:27 | 7.79 | 7.79 |
| 28 Oct 2024, 11:35 | 7.41 | 7.41 |
| 25 Sep 2024, 09:51 | 7.46 | 7.46 |
| 29 Aug 2024, 13:17 | 7.8 | 7.8 |
| 15 Jul 2024, 12:16 | 7.84 | 7.84 |
| 21 Jun 2024, 10:33 | 8.22 | 8.22 |
| 6 Mar 2024, 10:42 | 7.72 | 7.72 |
| 5 Feb 2024, 10:28 | 7.39 | 7.39 |
| 12 Jan 2024, 15:19 | 7.34 | 7.34 |
| 1 Dec 2023, 12:18 | 7.41 | 7.41 |
| 3 Nov 2023, 11:18 | 6.86 | 6.86 |
| 19 Oct 2023, 10:10 | 7.39 | 7.39 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.19 mg/l
Sampled 14 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 0.19 | 0.19 mg/l |
| 10 Apr 2026, 10:08 | 0.062 | 0.062 mg/l |
| 6 Mar 2026, 10:16 | 0.048 | 0.048 mg/l |
| 11 Feb 2026, 08:58 | 0.083 | 0.083 mg/l |
| 28 Jan 2026, 11:19 | 0.055 | 0.055 mg/l |
| 17 Dec 2025, 11:45 | 0.031 | 0.031 mg/l |
| 27 Oct 2025, 11:52 | 0.1 | 0.1 mg/l |
| 4 Jul 2025, 12:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2025, 12:24 | 0.057 | 0.057 mg/l |
| 12 Mar 2025, 10:08 | 0.22 | 0.22 mg/l |
| 10 Feb 2025, 09:51 | 0.053 | 0.053 mg/l |
| 29 Nov 2024, 12:27 | 0.15 | 0.15 mg/l |
| 28 Oct 2024, 11:35 | 0.17 | 0.17 mg/l |
| 25 Sep 2024, 09:51 | 0.12 | 0.12 mg/l |
| 29 Aug 2024, 13:17 | 0.058 | 0.058 mg/l |
| 15 Jul 2024, 12:16 | 0.052 | 0.052 mg/l |
| 21 Jun 2024, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2024, 10:42 | 0.18 | 0.18 mg/l |
| 5 Feb 2024, 10:28 | 0.23 | 0.23 mg/l |
| 12 Jan 2024, 15:19 | 0.26 | 0.26 mg/l |
| 1 Dec 2023, 12:18 | 0.33 | 0.33 mg/l |
| 3 Nov 2023, 11:18 | 0.15 | 0.15 mg/l |
| 19 Oct 2023, 10:10 | 0.2 | 0.2 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.731 mg/l
Sampled 14 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 0.731 | 0.731 mg/l |
| 10 Apr 2026, 10:08 | 1.19 | 1.19 mg/l |
| 6 Mar 2026, 10:16 | 2.89 | 2.89 mg/l |
| 11 Feb 2026, 08:58 | 3.69 | 3.69 mg/l |
| 28 Jan 2026, 11:19 | 5.29 | 5.29 mg/l |
| 17 Dec 2025, 11:45 | 6.19 | 6.19 mg/l |
| 27 Oct 2025, 11:52 | 1.58 | 1.58 mg/l |
| 4 Jul 2025, 12:54 | 0.385 | 0.385 mg/l |
| 14 May 2025, 12:24 | 0.599 | 0.599 mg/l |
| 12 Mar 2025, 10:08 | 1.79 | 1.79 mg/l |
| 10 Feb 2025, 09:51 | 1.79 | 1.79 mg/l |
| 29 Nov 2024, 12:27 | 2.99 | 2.99 mg/l |
| 28 Oct 2024, 11:35 | 1.77 | 1.77 mg/l |
| 25 Sep 2024, 09:51 | 1.88 | 1.88 mg/l |
| 29 Aug 2024, 13:17 | 0.601 | 0.601 mg/l |
| 15 Jul 2024, 12:16 | 1.18 | 1.18 mg/l |
| 21 Jun 2024, 10:33 | 3.18 | 3.18 mg/l |
| 6 Mar 2024, 10:42 | 2.38 | 2.38 mg/l |
| 5 Feb 2024, 10:28 | 2.78 | 2.78 mg/l |
| 12 Jan 2024, 15:19 | 3.18 | 3.18 mg/l |
| 1 Dec 2023, 12:18 | 2.88 | 2.88 mg/l |
| 3 Nov 2023, 11:18 | 3.68 | 3.68 mg/l |
| 19 Oct 2023, 10:10 | 5.88 | 5.88 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.22 mg/l
Sampled 14 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 0.22 | 0.22 mg/l |
| 10 Apr 2026, 10:08 | 0.043 | 0.043 mg/l |
| 6 Mar 2026, 10:16 | 0.047 | 0.047 mg/l |
| 11 Feb 2026, 08:58 | 0.053 | 0.053 mg/l |
| 28 Jan 2026, 11:19 | 0.042 | 0.042 mg/l |
| 17 Dec 2025, 11:45 | 0.035 | 0.035 mg/l |
| 27 Oct 2025, 11:52 | 0.13 | 0.13 mg/l |
| 4 Jul 2025, 12:54 | 0.26 | 0.26 mg/l |
| 14 May 2025, 12:24 | 0.091 | 0.091 mg/l |
| 12 Mar 2025, 10:08 | 0.077 | 0.077 mg/l |
| 10 Feb 2025, 09:51 | 0.064 | 0.064 mg/l |
| 29 Nov 2024, 12:27 | 0.074 | 0.074 mg/l |
| 28 Oct 2024, 11:35 | 0.12 | 0.12 mg/l |
| 25 Sep 2024, 09:51 | 0.11 | 0.11 mg/l |
| 29 Aug 2024, 13:17 | 0.21 | 0.21 mg/l |
| 15 Jul 2024, 12:16 | 0.1 | 0.1 mg/l |
| 21 Jun 2024, 10:33 | 0.15 | 0.15 mg/l |
| 6 Mar 2024, 10:42 | 0.081 | 0.081 mg/l |
| 5 Feb 2024, 10:28 | 0.18 | 0.18 mg/l |
| 12 Jan 2024, 15:19 | 0.29 | 0.29 mg/l |
| 1 Dec 2023, 12:18 | 0.33 | 0.33 mg/l |
| 3 Nov 2023, 11:18 | 0.23 | 0.23 mg/l |
| 19 Oct 2023, 10:10 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
366 µS/cm
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 14:33 | 366 | 366 µS/cm |
| 10 Apr 2026, 10:08 | 320 | 320 µS/cm |
| 6 Mar 2026, 10:16 | 222 | 222 µS/cm |
| 11 Feb 2026, 08:58 | 195 | 195 µS/cm |
| 28 Jan 2026, 11:19 | 217 | 217 µS/cm |
| 17 Dec 2025, 11:45 | 238 | 238 µS/cm |
| 27 Oct 2025, 11:52 | 357 | 357 µS/cm |
| 4 Jul 2025, 12:54 | 379 | 379 µS/cm |
| 14 May 2025, 12:24 | 360 | 360 µS/cm |
| 12 Mar 2025, 10:08 | 276 | 276 µS/cm |
| 10 Feb 2025, 09:51 | 238 | 238 µS/cm |
| 29 Nov 2024, 12:27 | 224 | 224 µS/cm |
| 28 Oct 2024, 11:35 | 228 | 228 µS/cm |
| 25 Sep 2024, 09:51 | 256 | 256 µS/cm |
| 29 Aug 2024, 13:17 | 398 | 398 µS/cm |
| 15 Jul 2024, 12:16 | 290 | 290 µS/cm |
| 21 Jun 2024, 10:33 | 286 | 286 µS/cm |
| 6 Mar 2024, 10:42 | 223 | 223 µS/cm |
| 5 Feb 2024, 10:28 | 261 | 261 µS/cm |
| 12 Jan 2024, 15:19 | 255 | 255 µS/cm |
| 3 Nov 2023, 11:18 | 215 | 215 µS/cm |
| 19 Oct 2023, 10:10 | 233 | 233 µS/cm |
Everything measured here
78 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 78 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Oct 2023 – May 2026 | 96.1% 14 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Oct 2023 – May 2026 | 10.6 mg/l 14 May 2026 |
| Temperature of Water 0076 | River water | 22 | Oct 2023 – May 2026 | 10.8 °C 14 May 2026 |
| pH 0061 | River water | 23 | Oct 2023 – May 2026 | 7.65 14 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Oct 2023 – May 2026 | 0.19 mg/l 14 May 2026 |
| Nitrate as N 0117 | River water | 23 | Oct 2023 – May 2026 | 0.731 mg/l 14 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Oct 2023 – May 2026 | 0.22 mg/l 14 May 2026 |
| Conductivity at 25 C 0077 | River water | 22 | Oct 2023 – May 2026 | 366 µS/cm 14 May 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 28 Jan 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 28 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Jan 2026 – Jan 2026 | 0.0021 µg/l 28 Jan 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 28 Jan 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 28 Jan 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 28 Jan 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 28 Jan 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Jan 2026 – Jan 2026 | below 0.01 µg/l 28 Jan 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Oct 2023 – May 2026 | 110 mg/l 14 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Oct 2023 – May 2026 | 0.00166 mg/l 14 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Jun 2024 – May 2026 | 4.6 mg/l 14 May 2026 |
| Conductivity at 20 C 0062 | River water | 1 | Dec 2023 – Dec 2023 | 250 µS/cm 1 Dec 2023 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| Nitrite as N 0118 | River water | 23 | Oct 2023 – May 2026 | 0.019 mg/l 14 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Oct 2023 – May 2026 | 0.75 mg/l 14 May 2026 |
| No flow /No sample 7668 | River water | 1 | Aug 2025 – Aug 2025 | No flow/discharge at sampling point 20 Aug 2025 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jan 2026 – Jan 2026 | 0.01 µg/l 28 Jan 2026 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorodecanoic acid 8892 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Jan 2026 – Jan 2026 | below 0.005 µg/l 28 Jan 2026 |
| Perfluorododecanoic acid 8894 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorohexanoic acid 8888 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorononanoic acid 8891 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorooctanoic acid 8890 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 28 Jan 2026 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 Jan 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Jan 2026 – Jan 2026 | below 0.006 µg/l 28 Jan 2026 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Jan 2026 – Jan 2026 | below 0.002 µg/l 28 Jan 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Jan 2026 – Jan 2026 | below 0.004 µg/l 28 Jan 2026 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Jan 2026 – Jan 2026 | below 0.001 µg/l 28 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.