Middleton Stop Drain Old Meadow Road
EA name: MIDDLETON STOP DRN.OLD MEADOW RD.
Environment Agency sampling point AN-59M13 · 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
- 3 Sep 2026, 13:2028 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 38 since 16 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 563380, 319110As published, to the nearest 10 m. Open in a map
- River, by its own name
- Middleton Stop
- River, by the map
- Middleton Stop DrainPlaced on a river whose name partly matches its own, 6 m from the line.
- Next gauge downstream
- King's Lynn On the River Great Ouse · 3.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Planned investigation (local monitoring) (19 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
68.5%
Sampled 3 Sep 2026, 28 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 68.5 | 68.5% |
| 7 Aug 2026, 08:35 | 58.6 | 58.6% |
| 1 Jul 2026, 11:35 | 80.7 | 80.7% |
| 8 Jun 2026, 13:32 | 70.8 | 70.8% |
| 11 May 2026, 13:43 | 107.1 | 107.1% |
| 1 Apr 2026, 07:47 | 85.9 | 85.9% |
| 13 Mar 2026, 12:19 | 99 | 99% |
| 3 Feb 2026, 14:17 | 92.3 | 92.3% |
| 9 Jan 2026, 12:38 | 90.4 | 90.4% |
| 4 Dec 2025, 13:49 | 90.2 | 90.2% |
| 6 Nov 2025, 14:18 | 101.8 | 101.8% |
| 1 Oct 2025, 11:01 | 71.3 | 71.3% |
| 7 Apr 2025, 14:28 | 133.4 | 133.4% |
| 3 Apr 2025, 12:46 | 118.6 | 118.6% |
| 3 Mar 2025, 13:32 | 114.2 | 114.2% |
| 11 Feb 2025, 13:05 | 96.1 | 96.1% |
| 24 Jan 2025, 11:37 | 97.5 | 97.5% |
| 3 Dec 2024, 13:28 | 89.5 | 89.5% |
| 18 Nov 2024, 12:57 | 95.3 | 95.3% |
| 15 Oct 2024, 11:19 | 91.5 | 91.5% |
| 16 Sep 2024, 10:56 | 80.7 | 80.7% |
| 19 Aug 2024, 12:40 | 81.9 | 81.9% |
| 17 Jul 2024, 09:42 | 71.9 | 71.9% |
| 18 Jun 2024, 14:52 | 112.8 | 112.8% |
| 13 May 2024, 08:41 | 74.9 | 74.9% |
| 15 Apr 2024, 12:54 | 104.8 | 104.8% |
| 18 Mar 2024, 11:55 | 93.1 | 93.1% |
| 19 Feb 2024, 12:10 | 84.4 | 84.4% |
| 15 Jan 2024, 11:40 | 92.3 | 92.3% |
| 4 Dec 2023, 16:02 | 81.7 | 81.7% |
| 20 Nov 2023, 11:32 | 81.9 | 81.9% |
| 16 Oct 2023, 08:52 | 72.1 | 72.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.34 mg/l
Sampled 3 Sep 2026, 28 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 6.34 | 6.34 mg/l |
| 7 Aug 2026, 08:35 | 5.68 | 5.68 mg/l |
| 1 Jul 2026, 11:35 | 7.15 | 7.15 mg/l |
| 8 Jun 2026, 13:32 | 6.81 | 6.81 mg/l |
| 11 May 2026, 13:43 | 11.4 | 11.4 mg/l |
| 1 Apr 2026, 07:47 | 9.89 | 9.89 mg/l |
| 13 Mar 2026, 12:19 | 11.5 | 11.5 mg/l |
| 3 Feb 2026, 14:17 | 11.8 | 11.8 mg/l |
| 9 Jan 2026, 12:38 | 12 | 12 mg/l |
| 4 Dec 2025, 13:49 | 11 | 11 mg/l |
| 6 Nov 2025, 14:18 | 10.6 | 10.6 mg/l |
| 1 Oct 2025, 11:01 | 7.49 | 7.49 mg/l |
| 7 Apr 2025, 14:28 | 13.9 | 13.9 mg/l |
| 3 Apr 2025, 12:46 | 12.6 | 12.6 mg/l |
| 3 Mar 2025, 13:32 | 13.8 | 13.8 mg/l |
| 11 Feb 2025, 13:05 | 12.2 | 12.2 mg/l |
| 24 Jan 2025, 11:37 | 12 | 12 mg/l |
| 3 Dec 2024, 13:28 | 10.7 | 10.7 mg/l |
| 18 Nov 2024, 12:57 | 11.5 | 11.5 mg/l |
| 15 Oct 2024, 11:19 | 10.2 | 10.2 mg/l |
| 16 Sep 2024, 10:56 | 8.21 | 8.21 mg/l |
| 19 Aug 2024, 12:40 | 7.55 | 7.55 mg/l |
| 17 Jul 2024, 09:42 | 6.96 | 6.96 mg/l |
| 18 Jun 2024, 14:52 | 10.4 | 10.4 mg/l |
| 13 May 2024, 08:41 | 7.33 | 7.33 mg/l |
| 15 Apr 2024, 12:54 | 11.5 | 11.5 mg/l |
| 18 Mar 2024, 11:55 | 10.3 | 10.3 mg/l |
| 19 Feb 2024, 12:10 | 9.62 | 9.62 mg/l |
| 15 Jan 2024, 11:40 | 12.4 | 12.4 mg/l |
| 4 Dec 2023, 16:02 | 10 | 10 mg/l |
| 20 Nov 2023, 11:32 | 9.34 | 9.34 mg/l |
| 16 Oct 2023, 08:52 | 8.59 | 8.59 mg/l |
Water temperature
code 0076 · °C
19 °C
Sampled 3 Sep 2026, 28 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 19 | 19 °C |
| 7 Aug 2026, 08:35 | 16.7 | 16.7 °C |
| 1 Jul 2026, 11:35 | 21.2 | 21.2 °C |
| 8 Jun 2026, 13:32 | 17.1 | 17.1 °C |
| 11 May 2026, 13:43 | 12.4 | 12.4 °C |
| 1 Apr 2026, 07:47 | 9.1 | 9.1 °C |
| 13 Mar 2026, 12:19 | 8.9 | 8.9 °C |
| 3 Feb 2026, 14:17 | 5 | 5 °C |
| 9 Jan 2026, 12:38 | 3.6 | 3.6 °C |
| 4 Dec 2025, 13:49 | 6.9 | 6.9 °C |
| 6 Nov 2025, 14:18 | 13.3 | 13.3 °C |
| 1 Oct 2025, 11:01 | 13 | 13 °C |
| 7 Apr 2025, 14:28 | 13.5 | 13.5 °C |
| 3 Apr 2025, 12:46 | 12.7 | 12.7 °C |
| 3 Mar 2025, 13:32 | 7.2 | 7.2 °C |
| 11 Feb 2025, 13:05 | 5.1 | 5.1 °C |
| 24 Jan 2025, 11:37 | 6.3 | 6.3 °C |
| 3 Dec 2024, 13:28 | 7.4 | 7.4 °C |
| 18 Nov 2024, 12:57 | 7.2 | 7.2 °C |
| 15 Oct 2024, 11:19 | 10.5 | 10.5 °C |
| 16 Sep 2024, 10:56 | 14.5 | 14.5 °C |
| 19 Aug 2024, 12:40 | 19.2 | 19.2 °C |
| 17 Jul 2024, 09:42 | 16.8 | 16.8 °C |
| 18 Jun 2024, 14:52 | 19.1 | 19.1 °C |
| 13 May 2024, 08:41 | 16.3 | 16.3 °C |
| 15 Apr 2024, 12:54 | 11.1 | 11.1 °C |
| 18 Mar 2024, 11:55 | 10.8 | 10.8 °C |
| 19 Feb 2024, 12:10 | 9.5 | 9.5 °C |
| 15 Jan 2024, 11:40 | 3 | 3 °C |
| 4 Dec 2023, 16:02 | 6.6 | 6.6 °C |
| 20 Nov 2023, 11:32 | 9.5 | 9.5 °C |
| 16 Oct 2023, 08:52 | 7.7 | 7.7 °C |
pH
code 0061
7.55
Sampled 3 Sep 2026, 28 days ago · 38 results banked
Every result (38)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 7.55 | 7.55 |
| 7 Aug 2026, 08:35 | 7.57 | 7.57 |
| 1 Jul 2026, 11:35 | 7.56 | 7.56 |
| 8 Jun 2026, 13:32 | 7.63 | 7.63 |
| 11 May 2026, 13:43 | 8.11 | 8.11 |
| 1 Apr 2026, 07:47 | 7.76 | 7.76 |
| 13 Mar 2026, 12:19 | 7.67 | 7.67 |
| 3 Feb 2026, 14:17 | 7.69 | 7.69 |
| 9 Jan 2026, 12:38 | 7.7 | 7.7 |
| 4 Dec 2025, 13:49 | 7.44 | 7.44 |
| 6 Nov 2025, 14:18 | 7.89 | 7.89 |
| 1 Oct 2025, 11:01 | 7.67 | 7.67 |
| 4 Sep 2025, 13:38 | 7.66 | 7.66 |
| 1 Aug 2025, 14:10 | 7.46 | 7.46 |
| 1 Jul 2025, 14:39 | 7.48 | 7.48 |
| 2 Jun 2025, 15:01 | 8.14 | 8.14 |
| 9 May 2025, 14:21 | 8.13 | 8.13 |
| 7 Apr 2025, 14:28 | 7.67 | 7.67 |
| 3 Apr 2025, 12:46 | 7.73 | 7.73 |
| 3 Mar 2025, 13:32 | 7.59 | 7.59 |
| 11 Feb 2025, 13:05 | 7.75 | 7.75 |
| 24 Jan 2025, 11:37 | 7.96 | 7.96 |
| 3 Dec 2024, 13:28 | 7.66 | 7.66 |
| 18 Nov 2024, 12:57 | 7.78 | 7.78 |
| 15 Oct 2024, 11:19 | 7.79 | 7.79 |
| 16 Sep 2024, 10:56 | 7.65 | 7.65 |
| 19 Aug 2024, 12:40 | 7.56 | 7.56 |
| 17 Jul 2024, 09:42 | 7.52 | 7.52 |
| 18 Jun 2024, 14:52 | 7.73 | 7.73 |
| 13 May 2024, 08:41 | 7.7 | 7.7 |
| 15 Apr 2024, 12:54 | 7.82 | 7.82 |
| 2 Apr 2024, 13:26 | 7.84 | 7.84 |
| 18 Mar 2024, 11:55 | 7.37 | 7.37 |
| 19 Feb 2024, 12:10 | 7.28 | 7.28 |
| 15 Jan 2024, 11:40 | 7.61 | 7.61 |
| 4 Dec 2023, 16:02 | 7.08 | 7.08 |
| 20 Nov 2023, 11:32 | 7.36 | 7.36 |
| 16 Oct 2023, 08:52 | 7.5 | 7.5 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.057 mg/l
Sampled 3 Sep 2026, 28 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 0.057 | 0.057 mg/l |
| 7 Aug 2026, 08:35 | 0.47 | 0.47 mg/l |
| 1 Jul 2026, 11:35 | 0.064 | 0.064 mg/l |
| 8 Jun 2026, 13:32 | 1.1 | 1.1 mg/l |
| 11 May 2026, 13:43 | 0.052 | 0.052 mg/l |
| 1 Apr 2026, 07:47 | 0.1 | 0.1 mg/l |
| 13 Mar 2026, 12:19 | 0.24 | 0.24 mg/l |
| 3 Feb 2026, 14:17 | 0.27 | 0.27 mg/l |
| 9 Jan 2026, 12:38 | 0.39 | 0.39 mg/l |
| 4 Dec 2025, 13:49 | 0.38 | 0.38 mg/l |
| 6 Nov 2025, 14:18 | 0.04 | 0.04 mg/l |
| 1 Oct 2025, 11:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2025, 14:28 | 0.2 | 0.2 mg/l |
| 3 Mar 2025, 13:32 | 0.28 | 0.28 mg/l |
| 11 Feb 2025, 13:05 | 0.24 | 0.24 mg/l |
| 24 Jan 2025, 11:37 | 0.057 | 0.057 mg/l |
| 3 Dec 2024, 13:28 | 0.12 | 0.12 mg/l |
| 18 Nov 2024, 12:57 | 0.033 | 0.033 mg/l |
| 15 Oct 2024, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Aug 2024, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 09:42 | 0.086 | 0.086 mg/l |
| 18 Jun 2024, 14:52 | 0.15 | 0.15 mg/l |
| 13 May 2024, 08:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2024, 12:54 | 0.12 | 0.12 mg/l |
| 18 Mar 2024, 11:55 | 0.45 | 0.45 mg/l |
| 19 Feb 2024, 12:10 | 0.19 | 0.19 mg/l |
| 15 Jan 2024, 11:40 | 0.21 | 0.21 mg/l |
| 4 Dec 2023, 16:02 | 0.41 | 0.41 mg/l |
| 20 Nov 2023, 11:32 | 0.21 | 0.21 mg/l |
| 16 Oct 2023, 08:52 | 0.11 | 0.11 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.415 mg/l
Sampled 3 Sep 2026, 28 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 0.415 | 0.415 mg/l |
| 7 Aug 2026, 08:35 | 0.541 | 0.541 mg/l |
| 1 Jul 2026, 11:35 | 0.476 | 0.476 mg/l |
| 8 Jun 2026, 13:32 | 1.55 | 1.55 mg/l |
| 11 May 2026, 13:43 | 1.99 | 1.99 mg/l |
| 1 Apr 2026, 07:47 | 3.49 | 3.49 mg/l |
| 13 Mar 2026, 12:19 | 4.27 | 4.27 mg/l |
| 3 Feb 2026, 14:17 | 5.18 | 5.18 mg/l |
| 9 Jan 2026, 12:38 | 2.48 | 2.48 mg/l |
| 4 Dec 2025, 13:49 | 6.15 | 6.15 mg/l |
| 6 Nov 2025, 14:18 | 1.49 | 1.49 mg/l |
| 1 Oct 2025, 11:01 | 1.19 | 1.19 mg/l |
| 7 Apr 2025, 14:28 | 3.89 | 3.89 mg/l |
| 3 Mar 2025, 13:32 | 7.09 | 7.09 mg/l |
| 11 Feb 2025, 13:05 | 3.98 | 3.98 mg/l |
| 24 Jan 2025, 11:37 | 3.69 | 3.69 mg/l |
| 3 Dec 2024, 13:28 | 4.25 | 4.25 mg/l |
| 18 Nov 2024, 12:57 | 2.57 | 2.57 mg/l |
| 15 Oct 2024, 11:19 | 1.99 | 1.99 mg/l |
| 16 Sep 2024, 10:56 | 2.79 | 2.79 mg/l |
| 19 Aug 2024, 12:40 | 2.79 | 2.79 mg/l |
| 17 Jul 2024, 09:42 | 3.86 | 3.86 mg/l |
| 18 Jun 2024, 14:52 | 2.98 | 2.98 mg/l |
| 13 May 2024, 08:41 | 3.88 | 3.88 mg/l |
| 15 Apr 2024, 12:54 | 4.88 | 4.88 mg/l |
| 18 Mar 2024, 11:55 | 4.98 | 4.98 mg/l |
| 19 Feb 2024, 12:10 | 6.28 | 6.28 mg/l |
| 15 Jan 2024, 11:40 | 4.48 | 4.48 mg/l |
| 4 Dec 2023, 16:02 | 6.57 | 6.57 mg/l |
| 20 Nov 2023, 11:32 | 6.55 | 6.55 mg/l |
| 16 Oct 2023, 08:52 | 6.85 | 6.85 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.022 mg/l
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 0.022 | 0.022 mg/l |
| 7 Aug 2026, 08:35 | 0.33 | 0.33 mg/l |
| 1 Jul 2026, 11:35 | 0.01 | 0.01 mg/l |
| 8 Jun 2026, 13:32 | 0.22 | 0.22 mg/l |
| 11 May 2026, 13:43 | 0.031 | 0.031 mg/l |
| 1 Apr 2026, 07:47 | 0.029 | 0.029 mg/l |
| 13 Mar 2026, 12:19 | 0.031 | 0.031 mg/l |
| 3 Feb 2026, 14:17 | 0.019 | 0.019 mg/l |
| 9 Jan 2026, 12:38 | 0.03 | 0.03 mg/l |
| 4 Dec 2025, 13:49 | 0.031 | 0.031 mg/l |
| 6 Nov 2025, 14:18 | 0.037 | 0.037 mg/l |
| 1 Oct 2025, 11:01 | 0.026 | 0.026 mg/l |
| 7 Apr 2025, 14:28 | 0.028 | 0.028 mg/l |
| 3 Mar 2025, 13:32 | 0.014 | 0.014 mg/l |
| 11 Feb 2025, 13:05 | 0.011 | 0.011 mg/l |
| 24 Jan 2025, 11:37 | 0.021 | 0.021 mg/l |
| 18 Nov 2024, 12:57 | 0.036 | 0.036 mg/l |
| 15 Oct 2024, 11:19 | 0.024 | 0.024 mg/l |
| 16 Sep 2024, 10:56 | 0.14 | 0.14 mg/l |
| 19 Aug 2024, 12:40 | 0.026 | 0.026 mg/l |
| 17 Jul 2024, 09:42 | 0.022 | 0.022 mg/l |
| 18 Jun 2024, 14:52 | 0.016 | 0.016 mg/l |
| 13 May 2024, 08:41 | 0.012 | 0.012 mg/l |
| 15 Apr 2024, 12:54 | 0.02 | 0.02 mg/l |
| 18 Mar 2024, 11:55 | 0.013 | 0.013 mg/l |
| 19 Feb 2024, 12:10 | 0.042 | 0.042 mg/l |
| 15 Jan 2024, 11:40 | 0.013 | 0.013 mg/l |
| 4 Dec 2023, 16:02 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Nov 2023, 11:32 | 0.022 | 0.022 mg/l |
| 16 Oct 2023, 08:52 | 0.049 | 0.049 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
833 µS/cm
Sampled 3 Sep 2026, 28 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 13:20 | 833 | 833 µS/cm |
| 7 Aug 2026, 08:35 | 982 | 982 µS/cm |
| 1 Jul 2026, 11:35 | 697 | 697 µS/cm |
| 8 Jun 2026, 13:32 | 577 | 577 µS/cm |
| 11 May 2026, 13:43 | 757 | 757 µS/cm |
| 1 Apr 2026, 07:47 | 768 | 768 µS/cm |
| 13 Mar 2026, 12:19 | 1082 | 1082 µS/cm |
| 3 Feb 2026, 14:17 | 1092 | 1092 µS/cm |
| 9 Jan 2026, 12:38 | 849 | 849 µS/cm |
| 4 Dec 2025, 13:49 | 959 | 959 µS/cm |
| 6 Nov 2025, 14:18 | 873 | 873 µS/cm |
| 1 Oct 2025, 11:01 | 791 | 791 µS/cm |
| 7 Apr 2025, 14:28 | 862 | 862 µS/cm |
| 3 Apr 2025, 12:46 | 829 | 829 µS/cm |
| 3 Mar 2025, 13:32 | 935 | 935 µS/cm |
| 11 Feb 2025, 13:05 | 1360 | 1360 µS/cm |
| 24 Jan 2025, 11:37 | 943 | 943 µS/cm |
| 3 Dec 2024, 13:28 | 942 | 942 µS/cm |
| 18 Nov 2024, 12:57 | 806 | 806 µS/cm |
| 15 Oct 2024, 11:19 | 1046 | 1046 µS/cm |
| 16 Sep 2024, 10:56 | 906 | 906 µS/cm |
| 19 Aug 2024, 12:40 | 761 | 761 µS/cm |
| 17 Jul 2024, 09:42 | 826 | 826 µS/cm |
| 18 Jun 2024, 14:52 | 999 | 999 µS/cm |
| 13 May 2024, 08:41 | 780 | 780 µS/cm |
| 15 Apr 2024, 12:54 | 820 | 820 µS/cm |
| 18 Mar 2024, 11:55 | 869 | 869 µS/cm |
| 19 Feb 2024, 12:10 | 742 | 742 µS/cm |
| 15 Jan 2024, 11:40 | 926 | 926 µS/cm |
| 4 Dec 2023, 16:02 | 873 | 873 µS/cm |
| 20 Nov 2023, 11:32 | 909 | 909 µS/cm |
| 16 Oct 2023, 08:52 | 1028 | 1028 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 32 | Oct 2023 – Sep 2026 | 68.5% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Oct 2023 – Sep 2026 | 6.34 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 32 | Oct 2023 – Sep 2026 | 19 °C 3 Sep 2026 |
| pH 0061 | River water | 38 | Oct 2023 – Sep 2026 | 7.55 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | 0.057 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Sep 2026 | 0.415 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Sep 2026 | 0.022 mg/l 3 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Oct 2023 – Sep 2026 | 833 µS/cm 3 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Sep 2026 | 130 mg/l 3 Sep 2026 |
| Aluminium, Dissolved 6037 | River water | 36 | Oct 2023 – Sep 2026 | below 20 µg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Sep 2026 | 0.00073 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 2.1 mg/l 7 Apr 2025 |
| Calcium, Dissolved 0239 | River water | 36 | Oct 2023 – Sep 2026 | 130 mg/l 3 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 35 | Oct 2023 – Sep 2026 | 2.9 mg/l 3 Sep 2026 |
| Iron, Dissolved 6460 | River water | 36 | Oct 2023 – Sep 2026 | 130 µg/l 3 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 36 | Oct 2023 – Sep 2026 | 7.4 mg/l 3 Sep 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Sep 2026 | 0.0051 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – Sep 2026 | 0.42 mg/l 3 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 28 | Oct 2023 – Sep 2026 | 8.2 mg/l 3 Sep 2026 |
| Visible oil or grease, significant trace: Present/Not found (1/0) 0664 | River water | 34 | Oct 2023 – Sep 2026 | Not found 3 Sep 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.