Mildirdge Green Drain Bells Lane
EA name: MILDIRDGE GREEN DRAIN BELLS LANE
Environment Agency sampling point TH-SSN1348 · 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
- 20 Aug 2026, 10:4042 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 12 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 501724, 175648As 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
- An unnamed streamPlaced by position alone (the only river line close by), 4 m from the line.
- Next gauge downstream
- Hythe End On the Colne Brook · 3.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (34 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
81.2%
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 81.2 | 81.2% |
| 29 Jul 2026, 10:14 | 75.6 | 75.6% |
| 15 Jun 2026, 10:15 | 89.8 | 89.8% |
| 29 May 2026, 11:08 | 111.5 | 111.5% |
| 29 Apr 2026, 13:05 | 79.9 | 79.9% |
| 2 Mar 2026, 13:52 | 123.9 | 123.9% |
| 2 Feb 2026, 11:48 | 99 | 99% |
| 5 Jan 2026, 14:23 | 95.9 | 95.9% |
| 1 Dec 2025, 10:25 | 86.3 | 86.3% |
| 7 Nov 2025, 10:34 | 70.3 | 70.3% |
| 8 Oct 2025, 11:12 | 80.1 | 80.1% |
| 22 Sep 2025, 11:08 | 80.4 | 80.4% |
| 26 Aug 2025, 12:48 | 86.9 | 86.9% |
| 30 Jul 2025, 09:43 | 83.9 | 83.9% |
| 10 Jun 2025, 11:25 | 123.2 | 123.2% |
| 7 May 2025, 11:42 | 99.4 | 99.4% |
| 8 Apr 2025, 09:40 | 83.1 | 83.1% |
| 5 Mar 2025, 13:23 | 114.6 | 114.6% |
| 3 Feb 2025, 13:27 | 94.8 | 94.8% |
| 14 Jan 2025, 11:19 | 89.1 | 89.1% |
| 3 Dec 2024, 10:18 | 78 | 78% |
| 6 Nov 2024, 09:45 | 75.6 | 75.6% |
| 3 Oct 2024, 14:35 | 94.2 | 94.2% |
| 3 Sep 2024, 11:41 | 86.2 | 86.2% |
| 8 Aug 2024, 13:10 | 99.7 | 99.7% |
| 9 Jul 2024, 13:45 | 86.1 | 86.1% |
| 13 Jun 2024, 13:46 | 157.8 | 157.8% |
| 23 May 2024, 10:56 | 73.9 | 73.9% |
| 17 Apr 2024, 10:40 | 77.7 | 77.7% |
| 14 Mar 2024, 12:20 | 100.5 | 100.5% |
| 6 Feb 2024, 12:18 | 87.1 | 87.1% |
| 12 Jan 2024, 09:37 | 81.4 | 81.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.68 mg/l
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 7.68 | 7.68 mg/l |
| 29 Jul 2026, 10:14 | 6.84 | 6.84 mg/l |
| 15 Jun 2026, 10:15 | 8.71 | 8.71 mg/l |
| 29 May 2026, 11:08 | 10.1 | 10.1 mg/l |
| 29 Apr 2026, 13:05 | 8.39 | 8.39 mg/l |
| 2 Mar 2026, 13:52 | 13.7 | 13.7 mg/l |
| 2 Feb 2026, 11:48 | 11.6 | 11.6 mg/l |
| 5 Jan 2026, 14:23 | 13.3 | 13.3 mg/l |
| 1 Dec 2025, 10:25 | 9.69 | 9.69 mg/l |
| 7 Nov 2025, 10:34 | 7.38 | 7.38 mg/l |
| 8 Oct 2025, 11:12 | 8.25 | 8.25 mg/l |
| 22 Sep 2025, 11:08 | 8.5 | 8.5 mg/l |
| 26 Aug 2025, 12:48 | 8.34 | 8.34 mg/l |
| 30 Jul 2025, 09:43 | 8.02 | 8.02 mg/l |
| 10 Jun 2025, 11:25 | 12 | 12 mg/l |
| 7 May 2025, 11:42 | 10.9 | 10.9 mg/l |
| 8 Apr 2025, 09:40 | 9.36 | 9.36 mg/l |
| 5 Mar 2025, 13:23 | 13.7 | 13.7 mg/l |
| 3 Feb 2025, 13:27 | 11.9 | 11.9 mg/l |
| 14 Jan 2025, 11:19 | 11.4 | 11.4 mg/l |
| 3 Dec 2024, 10:18 | 9.22 | 9.22 mg/l |
| 6 Nov 2024, 09:45 | 8.18 | 8.18 mg/l |
| 3 Oct 2024, 14:35 | 9.68 | 9.68 mg/l |
| 3 Sep 2024, 11:41 | 8.04 | 8.04 mg/l |
| 8 Aug 2024, 13:10 | 9.49 | 9.49 mg/l |
| 9 Jul 2024, 13:45 | 8.38 | 8.38 mg/l |
| 13 Jun 2024, 13:46 | 16 | 16 mg/l |
| 23 May 2024, 10:56 | 7.46 | 7.46 mg/l |
| 17 Apr 2024, 10:40 | 8.75 | 8.75 mg/l |
| 14 Mar 2024, 12:20 | 11.3 | 11.3 mg/l |
| 6 Feb 2024, 12:18 | 9.83 | 9.83 mg/l |
| 12 Jan 2024, 09:37 | 10.5 | 10.5 mg/l |
Water temperature
code 0076 · °C
17.9 °C
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 17.9 | 17.9 °C |
| 29 Jul 2026, 10:14 | 20.1 | 20.1 °C |
| 15 Jun 2026, 10:15 | 16.7 | 16.7 °C |
| 29 May 2026, 11:08 | 20.1 | 20.1 °C |
| 29 Apr 2026, 13:05 | 13 | 13 °C |
| 2 Mar 2026, 13:52 | 10.9 | 10.9 °C |
| 2 Feb 2026, 11:48 | 8.3 | 8.3 °C |
| 5 Jan 2026, 14:23 | 1.9 | 1.9 °C |
| 1 Dec 2025, 10:25 | 10.1 | 10.1 °C |
| 7 Nov 2025, 10:34 | 13 | 13 °C |
| 8 Oct 2025, 11:12 | 13.9 | 13.9 °C |
| 22 Sep 2025, 11:08 | 12.7 | 12.7 °C |
| 26 Aug 2025, 12:48 | 17.2 | 17.2 °C |
| 30 Jul 2025, 09:43 | 17.4 | 17.4 °C |
| 10 Jun 2025, 11:25 | 16.5 | 16.5 °C |
| 7 May 2025, 11:42 | 11.3 | 11.3 °C |
| 8 Apr 2025, 09:40 | 10 | 10 °C |
| 5 Mar 2025, 13:23 | 7.5 | 7.5 °C |
| 3 Feb 2025, 13:27 | 5.5 | 5.5 °C |
| 14 Jan 2025, 11:19 | 4.7 | 4.7 °C |
| 3 Dec 2024, 10:18 | 8 | 8 °C |
| 6 Nov 2024, 09:45 | 11.7 | 11.7 °C |
| 3 Oct 2024, 14:35 | 14 | 14 °C |
| 3 Sep 2024, 11:41 | 18.6 | 18.6 °C |
| 8 Aug 2024, 13:10 | 17.6 | 17.6 °C |
| 9 Jul 2024, 13:45 | 16.5 | 16.5 °C |
| 13 Jun 2024, 13:46 | 14.5 | 14.5 °C |
| 23 May 2024, 10:56 | 14.8 | 14.8 °C |
| 17 Apr 2024, 10:40 | 10 | 10 °C |
| 14 Mar 2024, 12:20 | 10.2 | 10.2 °C |
| 6 Feb 2024, 12:18 | 9.9 | 9.9 °C |
| 12 Jan 2024, 09:37 | 4.5 | 4.5 °C |
pH
code 0061
7.88
Sampled 20 Aug 2026, 42 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 7.88 | 7.88 |
| 29 Jul 2026, 10:14 | 7.9 | 7.9 |
| 29 May 2026, 11:08 | 8.23 | 8.23 |
| 29 Apr 2026, 13:05 | 8.05 | 8.05 |
| 2 Mar 2026, 13:52 | 8.52 | 8.52 |
| 2 Feb 2026, 11:48 | 8.26 | 8.26 |
| 5 Jan 2026, 14:23 | 8.3 | 8.3 |
| 1 Dec 2025, 10:25 | 8.02 | 8.02 |
| 7 Nov 2025, 10:34 | 7.84 | 7.84 |
| 8 Oct 2025, 11:12 | 7.85 | 7.85 |
| 22 Sep 2025, 11:08 | 7.91 | 7.91 |
| 26 Aug 2025, 12:48 | 8.01 | 8.01 |
| 30 Jul 2025, 09:43 | 8.08 | 8.08 |
| 10 Jun 2025, 11:25 | 8.32 | 8.32 |
| 7 May 2025, 11:42 | 8.27 | 8.27 |
| 8 Apr 2025, 09:40 | 8.16 | 8.16 |
| 5 Mar 2025, 13:23 | 8.48 | 8.48 |
| 3 Feb 2025, 13:27 | 8.09 | 8.09 |
| 14 Jan 2025, 11:19 | 8.07 | 8.07 |
| 3 Dec 2024, 10:18 | 7.89 | 7.89 |
| 6 Nov 2024, 09:45 | 7.88 | 7.88 |
| 3 Oct 2024, 14:35 | 7.97 | 7.97 |
| 3 Sep 2024, 11:41 | 7.9 | 7.9 |
| 8 Aug 2024, 13:10 | 8.14 | 8.14 |
| 9 Jul 2024, 13:45 | 8.04 | 8.04 |
| 13 Jun 2024, 13:46 | 8.79 | 8.79 |
| 23 May 2024, 10:56 | 7.94 | 7.94 |
| 17 Apr 2024, 10:40 | 8.03 | 8.03 |
| 14 Mar 2024, 12:20 | 8.04 | 8.04 |
| 6 Feb 2024, 12:18 | 7.94 | 7.94 |
| 12 Jan 2024, 09:37 | 8.1 | 8.1 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.039 mg/l
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 0.039 | 0.039 mg/l |
| 29 Jul 2026, 10:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jun 2026, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2026, 11:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Apr 2026, 13:05 | 0.052 | 0.052 mg/l |
| 2 Mar 2026, 13:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 11:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jan 2026, 14:23 | 0.094 | 0.094 mg/l |
| 1 Dec 2025, 10:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 10:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Sep 2025, 11:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Aug 2025, 12:48 | 0.036 | 0.036 mg/l |
| 30 Jul 2025, 09:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jun 2025, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2025, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2025, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2025, 13:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 13:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jan 2025, 11:19 | 0.05 | 0.05 mg/l |
| 3 Dec 2024, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2024, 09:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2024, 14:35 | 0.034 | 0.034 mg/l |
| 3 Sep 2024, 11:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Aug 2024, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jul 2024, 13:45 | 0.032 | 0.032 mg/l |
| 13 Jun 2024, 13:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 May 2024, 10:56 | 0.19 | 0.19 mg/l |
| 17 Apr 2024, 10:40 | 0.036 | 0.036 mg/l |
| 14 Mar 2024, 12:20 | 0.049 | 0.049 mg/l |
| 6 Feb 2024, 12:18 | 0.046 | 0.046 mg/l |
| 12 Jan 2024, 09:37 | 0.078 | 0.078 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
11.9 mg/l
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 11.9 | 11.9 mg/l |
| 29 Jul 2026, 10:14 | 8.73 | 8.73 mg/l |
| 15 Jun 2026, 10:15 | 8.67 | 8.67 mg/l |
| 29 May 2026, 11:08 | 8.82 | 8.82 mg/l |
| 29 Apr 2026, 13:05 | 5.95 | 5.95 mg/l |
| 2 Mar 2026, 13:52 | 4.38 | 4.38 mg/l |
| 2 Feb 2026, 11:48 | 4.17 | 4.17 mg/l |
| 5 Jan 2026, 14:23 | 7.37 | 7.37 mg/l |
| 1 Dec 2025, 10:25 | 9.87 | 9.87 mg/l |
| 7 Nov 2025, 10:34 | 6.57 | 6.57 mg/l |
| 8 Oct 2025, 11:12 | 9.65 | 9.65 mg/l |
| 22 Sep 2025, 11:08 | 9.97 | 9.97 mg/l |
| 26 Aug 2025, 12:48 | 12 | 12 mg/l |
| 30 Jul 2025, 09:43 | 11 | 11 mg/l |
| 10 Jun 2025, 11:25 | 9.17 | 9.17 mg/l |
| 7 May 2025, 11:42 | 9.56 | 9.56 mg/l |
| 8 Apr 2025, 09:40 | 6.08 | 6.08 mg/l |
| 5 Mar 2025, 13:23 | 3.99 | 3.99 mg/l |
| 3 Feb 2025, 13:27 | 3.97 | 3.97 mg/l |
| 14 Jan 2025, 11:19 | 4.86 | 4.86 mg/l |
| 3 Dec 2024, 10:18 | 5.66 | 5.66 mg/l |
| 6 Nov 2024, 09:45 | 6.15 | 6.15 mg/l |
| 3 Oct 2024, 14:35 | 1.97 | 1.97 mg/l |
| 3 Sep 2024, 11:41 | 8.18 | 8.18 mg/l |
| 8 Aug 2024, 13:10 | 6.39 | 6.39 mg/l |
| 9 Jul 2024, 13:45 | 4.46 | 4.46 mg/l |
| 13 Jun 2024, 13:46 | 2.67 | 2.67 mg/l |
| 23 May 2024, 10:56 | 3.62 | 3.62 mg/l |
| 17 Apr 2024, 10:40 | 2.18 | 2.18 mg/l |
| 14 Mar 2024, 12:20 | 1.87 | 1.87 mg/l |
| 6 Feb 2024, 12:18 | 2.98 | 2.98 mg/l |
| 12 Jan 2024, 09:37 | 1.88 | 1.88 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.4 mg/l
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 0.4 | 0.4 mg/l |
| 29 Jul 2026, 10:14 | 0.42 | 0.42 mg/l |
| 15 Jun 2026, 10:15 | 0.33 | 0.33 mg/l |
| 29 May 2026, 11:08 | 0.33 | 0.33 mg/l |
| 29 Apr 2026, 13:05 | 0.26 | 0.26 mg/l |
| 2 Mar 2026, 13:52 | 0.18 | 0.18 mg/l |
| 2 Feb 2026, 11:48 | 0.2 | 0.2 mg/l |
| 5 Jan 2026, 14:23 | 0.25 | 0.25 mg/l |
| 1 Dec 2025, 10:25 | 0.33 | 0.33 mg/l |
| 7 Nov 2025, 10:34 | 0.39 | 0.39 mg/l |
| 8 Oct 2025, 11:12 | 0.4 | 0.4 mg/l |
| 22 Sep 2025, 11:08 | 0.4 | 0.4 mg/l |
| 26 Aug 2025, 12:48 | 0.4 | 0.4 mg/l |
| 30 Jul 2025, 09:43 | 0.38 | 0.38 mg/l |
| 10 Jun 2025, 11:25 | 0.26 | 0.26 mg/l |
| 7 May 2025, 11:42 | 0.23 | 0.23 mg/l |
| 8 Apr 2025, 09:40 | 0.1 | 0.1 mg/l |
| 5 Mar 2025, 13:23 | 0.099 | 0.099 mg/l |
| 3 Feb 2025, 13:27 | 0.19 | 0.19 mg/l |
| 14 Jan 2025, 11:19 | 0.3 | 0.3 mg/l |
| 3 Dec 2024, 10:18 | 0.25 | 0.25 mg/l |
| 6 Nov 2024, 09:45 | 0.33 | 0.33 mg/l |
| 3 Oct 2024, 14:35 | 0.26 | 0.26 mg/l |
| 3 Sep 2024, 11:41 | 0.34 | 0.34 mg/l |
| 8 Aug 2024, 13:10 | 0.37 | 0.37 mg/l |
| 9 Jul 2024, 13:45 | 0.23 | 0.23 mg/l |
| 13 Jun 2024, 13:46 | 0.15 | 0.15 mg/l |
| 23 May 2024, 10:56 | 0.22 | 0.22 mg/l |
| 17 Apr 2024, 10:40 | 0.12 | 0.12 mg/l |
| 14 Mar 2024, 12:20 | 0.14 | 0.14 mg/l |
| 6 Feb 2024, 12:18 | 0.17 | 0.17 mg/l |
| 12 Jan 2024, 09:37 | 0.17 | 0.17 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
866 µS/cm
Sampled 20 Aug 2026, 42 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Aug 2026, 10:40 | 866 | 866 µS/cm |
| 29 Jul 2026, 10:14 | 845 | 845 µS/cm |
| 15 Jun 2026, 10:15 | 749 | 749 µS/cm |
| 29 May 2026, 11:08 | 790 | 790 µS/cm |
| 29 Apr 2026, 13:05 | 769 | 769 µS/cm |
| 2 Mar 2026, 13:52 | 723 | 723 µS/cm |
| 2 Feb 2026, 11:48 | 721 | 721 µS/cm |
| 5 Jan 2026, 14:23 | 790 | 790 µS/cm |
| 1 Dec 2025, 10:25 | 848 | 848 µS/cm |
| 7 Nov 2025, 10:34 | 753 | 753 µS/cm |
| 8 Oct 2025, 11:12 | 784 | 784 µS/cm |
| 22 Sep 2025, 11:08 | 796 | 796 µS/cm |
| 26 Aug 2025, 12:48 | 827 | 827 µS/cm |
| 30 Jul 2025, 09:43 | 780 | 780 µS/cm |
| 10 Jun 2025, 11:25 | 740 | 740 µS/cm |
| 7 May 2025, 11:42 | 771 | 771 µS/cm |
| 8 Apr 2025, 09:40 | 731 | 731 µS/cm |
| 5 Mar 2025, 13:23 | 716 | 716 µS/cm |
| 3 Feb 2025, 13:27 | 704 | 704 µS/cm |
| 14 Jan 2025, 11:19 | 695 | 695 µS/cm |
| 3 Dec 2024, 10:18 | 711 | 711 µS/cm |
| 6 Nov 2024, 09:45 | 709 | 709 µS/cm |
| 3 Oct 2024, 14:35 | 562 | 562 µS/cm |
| 3 Sep 2024, 11:41 | 773 | 773 µS/cm |
| 8 Aug 2024, 13:10 | 754 | 754 µS/cm |
| 9 Jul 2024, 13:45 | 632 | 632 µS/cm |
| 13 Jun 2024, 13:46 | 704 | 704 µS/cm |
| 23 May 2024, 10:56 | 721 | 721 µS/cm |
| 17 Apr 2024, 10:40 | 732 | 732 µS/cm |
| 14 Mar 2024, 12:20 | 725 | 725 µS/cm |
| 6 Feb 2024, 12:18 | 784 | 784 µS/cm |
| 12 Jan 2024, 09:37 | 766 | 766 µS/cm |
Everything measured here
113 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 113 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 32 | Jan 2024 – Aug 2026 | 81.2% 20 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Jan 2024 – Aug 2026 | 7.68 mg/l 20 Aug 2026 |
| Temperature of Water 0076 | River water | 32 | Jan 2024 – Aug 2026 | 17.9 °C 20 Aug 2026 |
| pH 0061 | River water | 31 | Jan 2024 – Aug 2026 | 7.88 20 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Jan 2024 – Aug 2026 | 0.039 mg/l 20 Aug 2026 |
| Nitrate as N 0117 | River water | 32 | Jan 2024 – Aug 2026 | 11.9 mg/l 20 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Jan 2024 – Aug 2026 | 0.4 mg/l 20 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Jan 2024 – Aug 2026 | 866 µS/cm 20 Aug 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Oct 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Oct 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Oct 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Apr 2025 – Oct 2025 | below 0.004 µg/l 8 Oct 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Oct 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Oct 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Oct 2025 – Oct 2025 | below 0.004 µg/l 8 Oct 2025 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Oct 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Oct 2025 – Oct 2025 | 0.0038 µg/l 8 Oct 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Oct 2025 – Oct 2025 | below 0.01 µg/l 8 Oct 2025 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Oct 2025 – Oct 2025 | below 0.004 µg/l 8 Oct 2025 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Oct 2025 – Oct 2025 | below 0.01 µg/l 8 Oct 2025 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Oct 2025 – Oct 2025 | below 0.004 µg/l 8 Oct 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Oct 2025 – Oct 2025 | below 0.01 µg/l 8 Oct 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Jan 2024 – Aug 2026 | 230 mg/l 20 Aug 2026 |
| Aluminium, Dissolved 6037 | River water | 4 | Apr 2025 – Jan 2026 | below 20 µg/l 5 Jan 2026 |
| Aminomethylphosphonic acid 7125 | River water | 12 | Apr 2025 – Mar 2026 | 0.47 µg/l 2 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Jan 2024 – Aug 2026 | 0.00097 mg/l 20 Aug 2026 |
| Barium, Dissolved 9446 | River water | 4 | Apr 2025 – Jan 2026 | 26 µg/l 5 Jan 2026 |
| Boron, Dissolved 9447 | River water | 4 | Apr 2025 – Jan 2026 | below 100 µg/l 5 Jan 2026 |
| Cadmium, Dissolved 0106 | River water | 4 | Apr 2025 – Jan 2026 | 0.013 µg/l 5 Jan 2026 |
| Calcium, Dissolved 0239 | River water | 4 | Apr 2025 – Jan 2026 | 98 mg/l 5 Jan 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 25 | Jul 2024 – Aug 2026 | 4.3 mg/l 20 Aug 2026 |
| Chloride 0172 | River water | 32 | Jan 2024 – Aug 2026 | 82 mg/l 20 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 4 | Apr 2025 – Jan 2026 | below 0.5 µg/l 5 Jan 2026 |
| Copper : BLM Bioavailable 4821 | River water | 3 | Apr 2025 – Jan 2026 | 0.18 µg/l 5 Jan 2026 |
| Copper, Dissolved 6450 | River water | 4 | Apr 2025 – Jan 2026 | 1.6 µg/l 5 Jan 2026 |
| eDNA Report 3047 | River water | 2 | May 2024 – Jul 2024 | 1 text result 15 Jul 2024 |
| Environmental DNA Filtration 3064 | River water | 2 | May 2024 – Jul 2024 | DNA Stored 15 Jul 2024 |
| Flow Type 2896 | River water | 30 | Jan 2024 – Aug 2026 | Moderate Flow 20 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 1 | Jun 2026 – Jun 2026 | 1 text result 15 Jun 2026 |
| Glyphosate 3007 | River water | 12 | Apr 2025 – Mar 2026 | below 0.1 µg/l 2 Mar 2026 |
| Hardness, Calcium 0163 | River water | 4 | Apr 2025 – Jan 2026 | 245 mg/l 5 Jan 2026 |
| Hardness, Total as CaCO3 0158 | River water | 4 | Apr 2025 – Jan 2026 | 267 mg/l 5 Jan 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Oct 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Iron, Dissolved 6460 | River water | 4 | Apr 2025 – Jan 2026 | 34 µg/l 5 Jan 2026 |
| Lead : BLM Bioavailable 3377 | River water | 3 | Apr 2025 – Jan 2026 | 0.04 µg/l 5 Jan 2026 |
| Lead, Dissolved 0052 | River water | 4 | Apr 2025 – Jan 2026 | 0.16 µg/l 5 Jan 2026 |
| Lithium, Dissolved 4201 | River water | 4 | Apr 2025 – Jan 2026 | below 100 µg/l 5 Jan 2026 |
| Magnesium, Dissolved 0235 | River water | 4 | Apr 2025 – Jan 2026 | 5.4 mg/l 5 Jan 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 3 | Apr 2025 – Jan 2026 | 5 µg/l 5 Jan 2026 |
| Manganese, Dissolved 6458 | River water | 4 | Apr 2025 – Jan 2026 | below 10 µg/l 5 Jan 2026 |
| Mitochondrial marker : Fish 12S 2857 | River water | 2 | May 2024 – Jul 2024 | Present 15 Jul 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Apr 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Apr 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 3 | Apr 2025 – Jan 2026 | 1.5 µg/l 5 Jan 2026 |
| Nickel, Dissolved 3410 | River water | 4 | Apr 2025 – Jan 2026 | 2.5 µg/l 5 Jan 2026 |
| Nitrite as N 0118 | River water | 32 | Jan 2024 – Aug 2026 | 0.081 mg/l 20 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 32 | Jan 2024 – Aug 2026 | 19 mg/l 20 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Jan 2024 – Aug 2026 | 12 mg/l 20 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Apr 2025 – Oct 2025 | 0.0006 µg/l 8 Oct 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Apr 2025 – Oct 2025 | 0.0041 µg/l 8 Oct 2025 |
| Perfluorobutanoic acid 2995 | River water | 2 | Apr 2025 – Oct 2025 | 0.0068 µg/l 8 Oct 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Apr 2025 – Oct 2025 | 0.001 µg/l 8 Oct 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Perfluorodecanoic acid 8892 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Apr 2025 – Oct 2025 | below 0.005 µg/l 8 Oct 2025 |
| Perfluorododecanoic acid 8894 | River water | 2 | Apr 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Apr 2025 – Oct 2025 | 0.0026 µg/l 8 Oct 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Apr 2025 – Oct 2025 | 0.00079 µg/l 8 Oct 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Apr 2025 – Oct 2025 | 0.0032 µg/l 8 Oct 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Apr 2025 – Oct 2025 | 0.0058 µg/l 8 Oct 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluorononanoic acid 8891 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Apr 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Apr 2025 – Oct 2025 | 0.0028 µg/l 8 Oct 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Apr 2025 – Oct 2025 | 0.0031 µg/l 8 Oct 2025 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Oct 2025 – Oct 2025 | 0.0059 µg/l 8 Oct 2025 |
| Perfluorooctanoic acid 8890 | River water | 2 | Apr 2025 – Oct 2025 | 0.0055 µg/l 8 Oct 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Apr 2025 – Oct 2025 | below 0.0005 µg/l 8 Oct 2025 |
| Perfluoropentanoic acid 8887 | River water | 2 | Apr 2025 – Oct 2025 | 0.0071 µg/l 8 Oct 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Apr 2025 – Oct 2025 | below 0.006 µg/l 8 Oct 2025 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Apr 2025 – Oct 2025 | below 0.002 µg/l 8 Oct 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Apr 2025 – Oct 2025 | below 0.004 µg/l 8 Oct 2025 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Apr 2025 – Oct 2025 | below 0.001 µg/l 8 Oct 2025 |
| Phosphorus, Total as P 0348 | River water | 32 | Jan 2024 – Aug 2026 | 1.8 mg/l 20 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 4 | Apr 2025 – Jan 2026 | 8.5 mg/l 5 Jan 2026 |
| Preparation: DNA 5923 | River water | 2 | May 2024 – Jul 2024 | Done 15 Jul 2024 |
| Silica, reactive as SiO2 0182 | River water | 32 | Jan 2024 – Aug 2026 | 12 mg/l 20 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 4 | Apr 2025 – Jan 2026 | 48 mg/l 5 Jan 2026 |
| Solids, Suspended at 105 C 0135 | River water | 32 | Jan 2024 – Aug 2026 | 760 mg/l 20 Aug 2026 |
| Strontium, Filtered 6693 | River water | 4 | Apr 2025 – Jan 2026 | 310 µg/l 5 Jan 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 4 | Apr 2025 – Jan 2026 | 46 mg/l 5 Jan 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 3 | Apr 2025 – Jan 2026 | 1.6 µg/l 5 Jan 2026 |
| Zinc, Dissolved 3408 | River water | 4 | Apr 2025 – Jan 2026 | 4.1 µg/l 5 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.