Engine Drain Chestnut Farm Road Bridge
EA name: ENGINE DRN.CHESTNUT FARM RD.BR.
Environment Agency sampling point AN-35M37 · 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
- 11 Aug 2026, 12:2651 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 4 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 548577, 269872As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Environmental monitoring statutory (EU directives) (6 samples)
3 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.1%
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 101.1 | 101.1% |
| 20 Apr 2026, 12:54 | 84.3 | 84.3% |
| 5 Mar 2026, 13:45 | 104 | 104% |
| 10 Feb 2026, 10:27 | 78.9 | 78.9% |
| 7 Jan 2026, 12:42 | 70.1 | 70.1% |
| 11 Dec 2025, 11:11 | 66.9 | 66.9% |
| 4 Sep 2025, 11:53 | 46.1 | 46.1% |
| 8 Aug 2025, 08:29 | 28.5 | 28.5% |
| 9 Jul 2025, 10:56 | 76.2 | 76.2% |
| 9 Jun 2025, 12:04 | 94.2 | 94.2% |
| 9 May 2025, 08:53 | 85.8 | 85.8% |
| 23 Apr 2025, 10:40 | 73 | 73% |
| 13 Mar 2025, 14:41 | 122.8 | 122.8% |
| 11 Feb 2025, 10:25 | 85.2 | 85.2% |
| 22 Jan 2025, 10:10 | 78.8 | 78.8% |
| 2 Dec 2024, 08:53 | 72.9 | 72.9% |
| 18 Nov 2024, 08:43 | 62.8 | 62.8% |
| 15 Oct 2024, 09:30 | 60.4 | 60.4% |
| 18 Sep 2024, 10:24 | 46.5 | 46.5% |
| 19 Aug 2024, 09:23 | 50.7 | 50.7% |
| 17 Jul 2024, 09:57 | 39.3 | 39.3% |
| 20 Jun 2024, 11:03 | 59.1 | 59.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.6 mg/l
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 11.6 | 11.6 mg/l |
| 20 Apr 2026, 12:54 | 9.48 | 9.48 mg/l |
| 5 Mar 2026, 13:45 | 11.8 | 11.8 mg/l |
| 10 Feb 2026, 10:27 | 9.42 | 9.42 mg/l |
| 7 Jan 2026, 12:42 | 9.45 | 9.45 mg/l |
| 11 Dec 2025, 11:11 | 7.95 | 7.95 mg/l |
| 4 Sep 2025, 11:53 | 4.47 | 4.47 mg/l |
| 8 Aug 2025, 08:29 | 2.76 | 2.76 mg/l |
| 9 Jul 2025, 10:56 | 7.41 | 7.41 mg/l |
| 9 Jun 2025, 12:04 | 9.66 | 9.66 mg/l |
| 9 May 2025, 08:53 | 9.4 | 9.4 mg/l |
| 23 Apr 2025, 10:40 | 7.94 | 7.94 mg/l |
| 13 Mar 2025, 14:41 | 14.9 | 14.9 mg/l |
| 11 Feb 2025, 10:25 | 11 | 11 mg/l |
| 22 Jan 2025, 10:10 | 10.2 | 10.2 mg/l |
| 2 Dec 2024, 08:53 | 8.58 | 8.58 mg/l |
| 18 Nov 2024, 08:43 | 7.71 | 7.71 mg/l |
| 15 Oct 2024, 09:30 | 6.69 | 6.69 mg/l |
| 18 Sep 2024, 10:24 | 4.7 | 4.7 mg/l |
| 19 Aug 2024, 09:23 | 5.17 | 5.17 mg/l |
| 17 Jul 2024, 09:57 | 3.9 | 3.9 mg/l |
| 20 Jun 2024, 11:03 | 5.84 | 5.84 mg/l |
Water temperature
code 0076 · °C
9.1 °C
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 9.1 | 9.1 °C |
| 20 Apr 2026, 12:54 | 10.1 | 10.1 °C |
| 5 Mar 2026, 13:45 | 9.7 | 9.7 °C |
| 10 Feb 2026, 10:27 | 7.6 | 7.6 °C |
| 7 Jan 2026, 12:42 | 2.9 | 2.9 °C |
| 11 Dec 2025, 11:11 | 7.8 | 7.8 °C |
| 4 Sep 2025, 11:53 | 16.7 | 16.7 °C |
| 8 Aug 2025, 08:29 | 16.7 | 16.7 °C |
| 9 Jul 2025, 10:56 | 16.6 | 16.6 °C |
| 9 Jun 2025, 12:04 | 14.1 | 14.1 °C |
| 9 May 2025, 08:53 | 11.2 | 11.2 °C |
| 23 Apr 2025, 10:40 | 11.5 | 11.5 °C |
| 13 Mar 2025, 14:41 | 6.9 | 6.9 °C |
| 11 Feb 2025, 10:25 | 4.6 | 4.6 °C |
| 22 Jan 2025, 10:10 | 4.6 | 4.6 °C |
| 2 Dec 2024, 08:53 | 8.2 | 8.2 °C |
| 18 Nov 2024, 08:43 | 6.5 | 6.5 °C |
| 15 Oct 2024, 09:30 | 10.7 | 10.7 °C |
| 18 Sep 2024, 10:24 | 14.8 | 14.8 °C |
| 19 Aug 2024, 09:23 | 14.4 | 14.4 °C |
| 17 Jul 2024, 09:57 | 15.6 | 15.6 °C |
| 20 Jun 2024, 11:03 | 15.8 | 15.8 °C |
pH
code 0061
7.35
Sampled 6 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Jul 2026, 10:52 | 7.35 | 7.35 |
| 8 Jun 2026, 14:17 | 7.43 | 7.43 |
| 14 May 2026, 12:45 | 7.95 | 7.95 |
| 20 Apr 2026, 12:54 | 7.72 | 7.72 |
| 5 Mar 2026, 13:45 | 7.69 | 7.69 |
| 10 Feb 2026, 10:27 | 7.64 | 7.64 |
| 7 Jan 2026, 12:42 | 7.35 | 7.35 |
| 11 Dec 2025, 11:11 | 7.51 | 7.51 |
| 4 Sep 2025, 11:53 | 7.35 | 7.35 |
| 8 Aug 2025, 08:29 | 7.18 | 7.18 |
| 9 Jul 2025, 10:56 | 7.43 | 7.43 |
| 9 Jun 2025, 12:04 | 7.68 | 7.68 |
| 9 May 2025, 08:53 | 7.92 | 7.92 |
| 23 Apr 2025, 10:40 | 7.47 | 7.47 |
| 13 Mar 2025, 14:41 | 7.93 | 7.93 |
| 11 Feb 2025, 10:25 | 7.76 | 7.76 |
| 22 Jan 2025, 10:10 | 7.59 | 7.59 |
| 2 Dec 2024, 08:53 | 7.65 | 7.65 |
| 18 Nov 2024, 08:43 | 7.61 | 7.61 |
| 15 Oct 2024, 09:30 | 7.5 | 7.5 |
| 18 Sep 2024, 10:24 | 7.77 | 7.77 |
| 19 Aug 2024, 09:23 | 7.17 | 7.17 |
| 17 Jul 2024, 09:57 | 7.57 | 7.57 |
| 20 Jun 2024, 11:03 | 7.66 | 7.66 |
| 8 May 2024, 10:57 | 7.72 | 7.72 |
| 3 Apr 2024, 13:24 | 7.75 | 7.75 |
| 8 Mar 2024, 10:21 | 7.68 | 7.68 |
| 2 Feb 2024, 09:36 | 7.61 | 7.61 |
| 16 Jan 2024, 11:02 | 7.61 | 7.61 |
| 7 Dec 2023, 10:40 | 7.55 | 7.55 |
| 2 Nov 2023, 09:51 | 7.65 | 7.65 |
| 4 Oct 2023, 08:48 | 7.55 | 7.55 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Apr 2026, 12:54 | 0.061 | 0.061 mg/l |
| 5 Mar 2026, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 12:42 | 0.098 | 0.098 mg/l |
| 11 Dec 2025, 11:11 | 0.049 | 0.049 mg/l |
| 4 Sep 2025, 11:53 | 0.26 | 0.26 mg/l |
| 8 Aug 2025, 08:29 | 0.26 | 0.26 mg/l |
| 9 Jul 2025, 10:56 | 0.096 | 0.096 mg/l |
| 9 Jun 2025, 12:04 | 0.07 | 0.07 mg/l |
| 9 May 2025, 08:53 | 0.16 | 0.16 mg/l |
| 23 Apr 2025, 10:40 | 0.11 | 0.11 mg/l |
| 13 Mar 2025, 14:41 | 0.051 | 0.051 mg/l |
| 11 Feb 2025, 10:25 | 0.062 | 0.062 mg/l |
| 22 Jan 2025, 10:10 | 0.076 | 0.076 mg/l |
| 2 Dec 2024, 08:53 | 0.12 | 0.12 mg/l |
| 18 Nov 2024, 08:43 | 0.04 | 0.04 mg/l |
| 15 Oct 2024, 09:30 | 0.06 | 0.06 mg/l |
| 18 Sep 2024, 10:24 | 0.1 | 0.1 mg/l |
| 19 Aug 2024, 09:23 | 0.056 | 0.056 mg/l |
| 17 Jul 2024, 09:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jun 2024, 11:03 | 0.055 | 0.055 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.66 mg/l
Sampled 14 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 3.66 | 3.66 mg/l |
| 20 Apr 2026, 12:54 | 5.12 | 5.12 mg/l |
| 5 Mar 2026, 13:45 | 14.9 | 14.9 mg/l |
| 10 Feb 2026, 10:27 | 18 | 18 mg/l |
| 7 Jan 2026, 12:42 | 14.9 | 14.9 mg/l |
| 11 Dec 2025, 11:11 | 22.9 | 22.9 mg/l |
| 4 Sep 2025, 11:53 | 6.7 | 6.7 mg/l |
| 8 Aug 2025, 08:29 | 9.13 | 9.13 mg/l |
| 9 Jul 2025, 10:56 | 4.18 | 4.18 mg/l |
| 9 Jun 2025, 12:04 | 5.44 | 5.44 mg/l |
| 9 May 2025, 08:53 | 6.1 | 6.1 mg/l |
| 23 Apr 2025, 10:40 | 7.62 | 7.62 mg/l |
| 13 Mar 2025, 14:41 | 13 | 13 mg/l |
| 11 Feb 2025, 10:25 | 12 | 12 mg/l |
| 22 Jan 2025, 10:10 | 13 | 13 mg/l |
| 18 Nov 2024, 08:43 | 9.18 | 9.18 mg/l |
| 15 Oct 2024, 09:30 | 12.9 | 12.9 mg/l |
| 18 Sep 2024, 10:24 | 5.87 | 5.87 mg/l |
| 19 Aug 2024, 09:23 | 17.8 | 17.8 mg/l |
| 17 Jul 2024, 09:57 | 3.76 | 3.76 mg/l |
| 20 Jun 2024, 11:03 | 1.86 | 1.86 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.016 mg/l
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 0.016 | 0.016 mg/l |
| 20 Apr 2026, 12:54 | 0.013 | 0.013 mg/l |
| 5 Mar 2026, 13:45 | 0.011 | 0.011 mg/l |
| 10 Feb 2026, 10:27 | 0.032 | 0.032 mg/l |
| 7 Jan 2026, 12:42 | 0.027 | 0.027 mg/l |
| 11 Dec 2025, 11:11 | 0.073 | 0.073 mg/l |
| 4 Sep 2025, 11:53 | 0.015 | 0.015 mg/l |
| 8 Aug 2025, 08:29 | 0.013 | 0.013 mg/l |
| 9 Jul 2025, 10:56 | 0.096 | 0.096 mg/l |
| 9 Jun 2025, 12:04 | 0.035 | 0.035 mg/l |
| 9 May 2025, 08:53 | 0.053 | 0.053 mg/l |
| 23 Apr 2025, 10:40 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Mar 2025, 14:41 | 0.012 | 0.012 mg/l |
| 11 Feb 2025, 10:25 | 0.038 | 0.038 mg/l |
| 22 Jan 2025, 10:10 | 0.035 | 0.035 mg/l |
| 2 Dec 2024, 08:53 | 0.062 | 0.062 mg/l |
| 18 Nov 2024, 08:43 | 0.031 | 0.031 mg/l |
| 15 Oct 2024, 09:30 | 0.043 | 0.043 mg/l |
| 18 Sep 2024, 10:24 | 0.12 | 0.12 mg/l |
| 19 Aug 2024, 09:23 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Jul 2024, 09:57 | 0.078 | 0.078 mg/l |
| 20 Jun 2024, 11:03 | 0.043 | 0.043 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
988 µS/cm
Sampled 14 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 12:45 | 988 | 988 µS/cm |
| 20 Apr 2026, 12:54 | 1097 | 1097 µS/cm |
| 5 Mar 2026, 13:45 | 1090 | 1090 µS/cm |
| 10 Feb 2026, 10:27 | 1024 | 1024 µS/cm |
| 7 Jan 2026, 12:42 | 1101 | 1101 µS/cm |
| 11 Dec 2025, 11:11 | 981 | 981 µS/cm |
| 4 Sep 2025, 11:53 | 1033 | 1033 µS/cm |
| 8 Aug 2025, 08:29 | 1030 | 1030 µS/cm |
| 9 Jul 2025, 10:56 | 960 | 960 µS/cm |
| 9 Jun 2025, 12:04 | 905 | 905 µS/cm |
| 9 May 2025, 08:53 | 1921 | 1921 µS/cm |
| 23 Apr 2025, 10:40 | 1092 | 1092 µS/cm |
| 13 Mar 2025, 14:41 | 1092 | 1092 µS/cm |
| 11 Feb 2025, 10:25 | 1120 | 1120 µS/cm |
| 22 Jan 2025, 10:10 | 1178 | 1178 µS/cm |
| 2 Dec 2024, 08:53 | 1099 | 1099 µS/cm |
| 18 Nov 2024, 08:43 | 1023 | 1023 µS/cm |
| 15 Oct 2024, 09:30 | 977 | 977 µS/cm |
| 18 Sep 2024, 10:24 | 1878 | 1878 µS/cm |
| 19 Aug 2024, 09:23 | 1040 | 1040 µS/cm |
| 17 Jul 2024, 09:57 | 750 | 750 µS/cm |
| 20 Jun 2024, 11:03 | 1351 | 1351 µS/cm |
Everything measured here
91 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 91 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 22 | Jun 2024 – May 2026 | 101.1% 14 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Jun 2024 – May 2026 | 11.6 mg/l 14 May 2026 |
| Temperature of Water 0076 | River water | 22 | Jun 2024 – May 2026 | 9.1 °C 14 May 2026 |
| pH 0061 | River water | 32 | Oct 2023 – Jul 2026 | 7.35 6 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Jun 2024 – May 2026 | below 0.03 mg/l 14 May 2026 |
| Nitrate as N 0117 | River water | 21 | Jun 2024 – May 2026 | 3.66 mg/l 14 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Jun 2024 – May 2026 | 0.016 mg/l 14 May 2026 |
| Conductivity at 25 C 0077 | River water | 22 | Jun 2024 – May 2026 | 988 µS/cm 14 May 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 2,4-D :- {2,4-Dichlorophenoxyacetic acid} 3545 | River water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 6 Jul 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 11 Dec 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 11 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Dec 2025 – Dec 2025 | 0.096 µg/l 11 Dec 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Dec 2025 – Dec 2025 | 0.01 µg/l 11 Dec 2025 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 11 Dec 2025 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 11 Dec 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 11 Dec 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Jun 2024 – May 2026 | 310 mg/l 14 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Jun 2024 – May 2026 | below 0.00046 mg/l 14 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.5 mg/l 14 May 2026 |
| Calcium 0241 | River water | 11 | Oct 2023 – Jul 2026 | 190 mg/l 6 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 32 | Oct 2023 – Jul 2026 | 190 mg/l 6 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 32 | Oct 2023 – Jul 2026 | 11 mg/l 6 Jul 2026 |
| Chromium Hexavalent, Dissolved :- {Cr VI} 6619 | River water | 10 | Oct 2023 – Jul 2026 | below 0.05 µg/l 6 Jul 2026 |
| Chromium, Dissolved 3409 | River water | 11 | Oct 2023 – Jul 2026 | below 0.5 µg/l 6 Jul 2026 |
| Copper : BLM Bioavailable 4821 | River water | 11 | Oct 2023 – Jul 2026 | 0.01 µg/l 6 Jul 2026 |
| Copper, Dissolved 6450 | River water | 11 | Oct 2023 – Jul 2026 | 0.44 µg/l 6 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 11 | Oct 2023 – Jul 2026 | 507 mg/l 6 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Iron, Dissolved 6460 | River water | 11 | Oct 2023 – Jul 2026 | 97 µg/l 6 Jul 2026 |
| Lead : BLM Bioavailable 3377 | River water | 32 | Oct 2023 – Jul 2026 | 0 µg/l 6 Jul 2026 |
| Lead, Dissolved 0052 | River water | 32 | Oct 2023 – Jul 2026 | below 0.1 µg/l 6 Jul 2026 |
| Magnesium 0237 | River water | 11 | Oct 2023 – Jul 2026 | 7.7 mg/l 6 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 11 | Oct 2023 – Jul 2026 | 7.9 mg/l 6 Jul 2026 |
| Mecoprop 3549 | River water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 6 Jul 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 32 | Oct 2023 – Jul 2026 | 0.36 µg/l 6 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 32 | Oct 2023 – Jul 2026 | 2.4 µg/l 6 Jul 2026 |
| Nitrite as N 0118 | River water | 21 | Jun 2024 – May 2026 | 0.038 mg/l 14 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Jun 2024 – May 2026 | 3.7 mg/l 14 May 2026 |
| No flow /No sample 7668 | River water | 3 | Oct 2025 – Aug 2026 | No flow/discharge at sampling point 11 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Dec 2025 – Dec 2025 | 0.00092 µg/l 11 Dec 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Dec 2025 – Dec 2025 | 0.0059 µg/l 11 Dec 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Dec 2025 – Dec 2025 | 0.0068 µg/l 11 Dec 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Dec 2025 – Dec 2025 | 0.00068 µg/l 11 Dec 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Dec 2025 – Dec 2025 | below 0.005 µg/l 11 Dec 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Dec 2025 – Dec 2025 | 0.0034 µg/l 11 Dec 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Dec 2025 – Dec 2025 | 0.0012 µg/l 11 Dec 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Dec 2025 – Dec 2025 | 0.0034 µg/l 11 Dec 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Dec 2025 – Dec 2025 | 0.007 µg/l 11 Dec 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 11 Dec 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Dec 2025 – Dec 2025 | 0.0011 µg/l 11 Dec 2025 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Dec 2025 – Dec 2025 | 0.003 µg/l 11 Dec 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Dec 2025 – Dec 2025 | 0.0015 µg/l 11 Dec 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Dec 2025 – Dec 2025 | 0.00086 µg/l 11 Dec 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Dec 2025 – Dec 2025 | 0.012 µg/l 11 Dec 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Dec 2025 – Dec 2025 | below 0.006 µg/l 11 Dec 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 11 Dec 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 11 Dec 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 11 Dec 2025 |
| Zinc 6455 | River water | 11 | Oct 2023 – Jul 2026 | below 5 µg/l 6 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 11 | Oct 2023 – Jul 2026 | 1.3 µg/l 6 Jul 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.