Old Bedford River Welches Dam Pumping Station
EA name: OLD BEDFORD R. WELCHES DAM PUMPING STN.
Environment Agency sampling point AN-26M49 · 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 Sep 2026, 16:1317 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 9 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 547100, 285800As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Old Bedford
- River, by the map
- Old Bedford RiverPlaced on the river its name gives, 22 m from the line.
- Next gauge downstream
- Magdalen Bridge On the River Great Ouse · 31 km along the river (the path rests on a repair to the map)
- Nearest gauge upstream
- Sutton Gault On the River Great Ouse · 7.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Planned investigation (local monitoring) (6 samples)
Environmental monitoring statutory (EU directives) (6 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
65.5%
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 65.5 | 65.5% |
| 11 Aug 2026, 11:07 | 69.6 | 69.6% |
| 9 Jul 2026, 11:32 | 86.6 | 86.6% |
| 17 Jun 2026, 11:19 | 102.5 | 102.5% |
| 18 May 2026, 12:40 | 137.5 | 137.5% |
| 23 Apr 2026, 14:09 | 107.4 | 107.4% |
| 12 Mar 2026, 12:01 | 101.8 | 101.8% |
| 12 Feb 2026, 14:29 | 77 | 77% |
| 8 Jan 2026, 14:48 | 90.8 | 90.8% |
| 9 Dec 2025, 14:45 | 82.6 | 82.6% |
| 17 Nov 2025, 13:21 | 71.7 | 71.7% |
| 24 Oct 2025, 11:38 | 76.1 | 76.1% |
| 9 Sep 2025, 15:12 | 95.9 | 95.9% |
| 15 Aug 2025, 10:22 | 72.6 | 72.6% |
| 17 Jul 2025, 13:26 | 74.6 | 74.6% |
| 10 Jun 2025, 15:01 | 117.4 | 117.4% |
| 14 May 2025, 10:36 | 114.9 | 114.9% |
| 23 Apr 2025, 11:38 | 98.1 | 98.1% |
| 18 Mar 2025, 15:01 | 129.8 | 129.8% |
| 6 Feb 2025, 12:52 | 95.4 | 95.4% |
| 22 Jan 2025, 11:47 | 91.4 | 91.4% |
| 3 Dec 2024, 09:31 | 77.9 | 77.9% |
| 18 Nov 2024, 14:16 | 84.6 | 84.6% |
| 31 Oct 2024, 14:27 | 84.3 | 84.3% |
| 16 Sep 2024, 09:35 | 74.8 | 74.8% |
| 19 Aug 2024, 15:04 | 136.7 | 136.7% |
| 17 Jul 2024, 11:50 | 45 | 45% |
| 18 Jun 2024, 13:25 | 67.1 | 67.1% |
| 8 Mar 2024, 15:44 | 96.9 | 96.9% |
| 5 Feb 2024, 14:29 | 98.9 | 98.9% |
| 2 Jan 2024, 13:42 | 92.1 | 92.1% |
| 9 Oct 2023, 09:39 | 69.4 | 69.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.02 mg/l
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 6.02 | 6.02 mg/l |
| 11 Aug 2026, 11:07 | 6.24 | 6.24 mg/l |
| 9 Jul 2026, 11:32 | 7.25 | 7.25 mg/l |
| 17 Jun 2026, 11:19 | 9.5 | 9.5 mg/l |
| 18 May 2026, 12:40 | 14.1 | 14.1 mg/l |
| 23 Apr 2026, 14:09 | 10.8 | 10.8 mg/l |
| 12 Mar 2026, 12:01 | 11.6 | 11.6 mg/l |
| 12 Feb 2026, 14:29 | 9.11 | 9.11 mg/l |
| 8 Jan 2026, 14:48 | 12.8 | 12.8 mg/l |
| 9 Dec 2025, 14:45 | 9.33 | 9.33 mg/l |
| 17 Nov 2025, 13:21 | 8.29 | 8.29 mg/l |
| 24 Oct 2025, 11:38 | 8.49 | 8.49 mg/l |
| 9 Sep 2025, 15:12 | 8.91 | 8.91 mg/l |
| 15 Aug 2025, 10:22 | 6.35 | 6.35 mg/l |
| 17 Jul 2025, 13:26 | 6.71 | 6.71 mg/l |
| 10 Jun 2025, 15:01 | 10.9 | 10.9 mg/l |
| 14 May 2025, 10:36 | 10.8 | 10.8 mg/l |
| 23 Apr 2025, 11:38 | 10.1 | 10.1 mg/l |
| 18 Mar 2025, 15:01 | 15.3 | 15.3 mg/l |
| 6 Feb 2025, 12:52 | 12 | 12 mg/l |
| 22 Jan 2025, 11:47 | 11.9 | 11.9 mg/l |
| 3 Dec 2024, 09:31 | 9.51 | 9.51 mg/l |
| 18 Nov 2024, 14:16 | 10 | 10 mg/l |
| 31 Oct 2024, 14:27 | 8.94 | 8.94 mg/l |
| 16 Sep 2024, 09:35 | 7.71 | 7.71 mg/l |
| 19 Aug 2024, 15:04 | 12.1 | 12.1 mg/l |
| 17 Jul 2024, 11:50 | 4.2 | 4.2 mg/l |
| 18 Jun 2024, 13:25 | 6.35 | 6.35 mg/l |
| 8 Mar 2024, 15:44 | 11.4 | 11.4 mg/l |
| 5 Feb 2024, 14:29 | 11.4 | 11.4 mg/l |
| 2 Jan 2024, 13:42 | 10.8 | 10.8 mg/l |
| 9 Oct 2023, 09:39 | 6.84 | 6.84 mg/l |
Water temperature
code 0076 · °C
19.3 °C
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 19.3 | 19.3 °C |
| 11 Aug 2026, 11:07 | 20.6 | 20.6 °C |
| 9 Jul 2026, 11:32 | 24.2 | 24.2 °C |
| 17 Jun 2026, 11:19 | 18.9 | 18.9 °C |
| 18 May 2026, 12:40 | 14.1 | 14.1 °C |
| 23 Apr 2026, 14:09 | 15.1 | 15.1 °C |
| 12 Mar 2026, 12:01 | 9.4 | 9.4 °C |
| 12 Feb 2026, 14:29 | 8 | 8 °C |
| 8 Jan 2026, 14:48 | 1.3 | 1.3 °C |
| 9 Dec 2025, 14:45 | 9.9 | 9.9 °C |
| 17 Nov 2025, 13:21 | 8.9 | 8.9 °C |
| 24 Oct 2025, 11:38 | 10.4 | 10.4 °C |
| 9 Sep 2025, 15:12 | 18.8 | 18.8 °C |
| 15 Aug 2025, 10:22 | 21.9 | 21.9 °C |
| 17 Jul 2025, 13:26 | 20.4 | 20.4 °C |
| 10 Jun 2025, 15:01 | 18.7 | 18.7 °C |
| 14 May 2025, 10:36 | 18.2 | 18.2 °C |
| 23 Apr 2025, 11:38 | 14.1 | 14.1 °C |
| 18 Mar 2025, 15:01 | 8 | 8 °C |
| 6 Feb 2025, 12:52 | 5.6 | 5.6 °C |
| 22 Jan 2025, 11:47 | 4.2 | 4.2 °C |
| 3 Dec 2024, 09:31 | 6.7 | 6.7 °C |
| 18 Nov 2024, 14:16 | 7.9 | 7.9 °C |
| 31 Oct 2024, 14:27 | 12.6 | 12.6 °C |
| 16 Sep 2024, 09:35 | 13.9 | 13.9 °C |
| 19 Aug 2024, 15:04 | 21.3 | 21.3 °C |
| 17 Jul 2024, 11:50 | 18.6 | 18.6 °C |
| 18 Jun 2024, 13:25 | 17.9 | 17.9 °C |
| 8 Mar 2024, 15:44 | 8.2 | 8.2 °C |
| 5 Feb 2024, 14:29 | 8.9 | 8.9 °C |
| 2 Jan 2024, 13:42 | 8.2 | 8.2 °C |
| 9 Oct 2023, 09:39 | 15.9 | 15.9 °C |
pH
code 0061
7.46
Sampled 14 Sep 2026, 17 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 7.46 | 7.46 |
| 11 Aug 2026, 11:07 | 7.47 | 7.47 |
| 9 Jul 2026, 11:32 | 7.48 | 7.48 |
| 17 Jun 2026, 11:19 | 7.6 | 7.6 |
| 18 May 2026, 12:40 | 8.34 | 8.34 |
| 23 Apr 2026, 14:09 | 8.27 | 8.27 |
| 12 Mar 2026, 12:01 | 8.48 | 8.48 |
| 12 Feb 2026, 14:29 | 7.9 | 7.9 |
| 8 Jan 2026, 14:48 | 7.98 | 7.98 |
| 9 Dec 2025, 14:45 | 7.93 | 7.93 |
| 17 Nov 2025, 13:21 | 7.82 | 7.82 |
| 24 Oct 2025, 11:38 | 7.77 | 7.77 |
| 9 Sep 2025, 15:12 | 7.79 | 7.79 |
| 15 Aug 2025, 10:22 | 7.54 | 7.54 |
| 17 Jul 2025, 13:26 | 7.44 | 7.44 |
| 10 Jun 2025, 15:01 | 8.18 | 8.18 |
| 14 May 2025, 10:36 | 8.02 | 8.02 |
| 23 Apr 2025, 11:38 | 7.94 | 7.94 |
| 18 Mar 2025, 15:01 | 8.53 | 8.53 |
| 6 Feb 2025, 12:52 | 8.17 | 8.17 |
| 22 Jan 2025, 11:47 | 8.07 | 8.07 |
| 3 Dec 2024, 09:31 | 7.98 | 7.98 |
| 18 Nov 2024, 14:16 | 7.96 | 7.96 |
| 31 Oct 2024, 14:27 | 7.94 | 7.94 |
| 16 Sep 2024, 09:35 | 7.59 | 7.59 |
| 19 Aug 2024, 15:04 | 8.15 | 8.15 |
| 17 Jul 2024, 11:50 | 7.37 | 7.37 |
| 18 Jun 2024, 13:25 | 7.54 | 7.54 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.08 mg/l
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 0.08 | 0.08 mg/l |
| 11 Aug 2026, 11:07 | 0.076 | 0.076 mg/l |
| 9 Jul 2026, 11:32 | 0.057 | 0.057 mg/l |
| 17 Jun 2026, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 May 2026, 12:40 | 0.17 | 0.17 mg/l |
| 23 Apr 2026, 14:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2026, 12:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Feb 2026, 14:29 | 0.033 | 0.033 mg/l |
| 8 Jan 2026, 14:48 | 0.099 | 0.099 mg/l |
| 9 Dec 2025, 14:45 | 0.06 | 0.06 mg/l |
| 17 Nov 2025, 13:21 | 0.23 | 0.23 mg/l |
| 24 Oct 2025, 11:38 | 0.089 | 0.089 mg/l |
| 9 Sep 2025, 15:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Aug 2025, 10:22 | 0.068 | 0.068 mg/l |
| 17 Jul 2025, 13:26 | 0.054 | 0.054 mg/l |
| 10 Jun 2025, 15:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2025, 10:36 | 0.13 | 0.13 mg/l |
| 23 Apr 2025, 11:38 | 0.098 | 0.098 mg/l |
| 18 Mar 2025, 15:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2025, 12:52 | 0.039 | 0.039 mg/l |
| 22 Jan 2025, 11:47 | 0.043 | 0.043 mg/l |
| 3 Dec 2024, 09:31 | 0.055 | 0.055 mg/l |
| 18 Nov 2024, 14:16 | 0.066 | 0.066 mg/l |
| 31 Oct 2024, 14:27 | 0.039 | 0.039 mg/l |
| 16 Sep 2024, 09:35 | 0.067 | 0.067 mg/l |
| 19 Aug 2024, 15:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 11:50 | 0.19 | 0.19 mg/l |
| 18 Jun 2024, 13:25 | 0.22 | 0.22 mg/l |
| 8 Mar 2024, 15:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2024, 14:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2024, 13:42 | 0.032 | 0.032 mg/l |
| 9 Oct 2023, 09:39 | 0.17 | 0.17 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.04 mg/l
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 1.04 | 1.04 mg/l |
| 11 Aug 2026, 11:07 | 0.195 | 0.195 mg/l |
| 9 Jul 2026, 11:32 | 0.935 | 0.935 mg/l |
| 17 Jun 2026, 11:19 | 1.82 | 1.82 mg/l |
| 18 May 2026, 12:40 | 0.234 | 0.234 mg/l |
| 23 Apr 2026, 14:09 | 2.04 | 2.04 mg/l |
| 12 Mar 2026, 12:01 | 7.38 | 7.38 mg/l |
| 12 Feb 2026, 14:29 | 8.26 | 8.26 mg/l |
| 8 Jan 2026, 14:48 | 10.9 | 10.9 mg/l |
| 9 Dec 2025, 14:45 | 14.9 | 14.9 mg/l |
| 17 Nov 2025, 13:21 | 8.51 | 8.51 mg/l |
| 24 Oct 2025, 11:38 | 4.43 | 4.43 mg/l |
| 9 Sep 2025, 15:12 | 2.24 | 2.24 mg/l |
| 15 Aug 2025, 10:22 | 1.25 | 1.25 mg/l |
| 17 Jul 2025, 13:26 | 0.884 | 0.884 mg/l |
| 10 Jun 2025, 15:01 | 1.57 | 1.57 mg/l |
| 14 May 2025, 10:36 | 5.25 | 5.25 mg/l |
| 23 Apr 2025, 11:38 | 6.56 | 6.56 mg/l |
| 18 Mar 2025, 15:01 | 7.37 | 7.37 mg/l |
| 6 Feb 2025, 12:52 | 7.86 | 7.86 mg/l |
| 22 Jan 2025, 11:47 | 8.25 | 8.25 mg/l |
| 3 Dec 2024, 09:31 | 5.64 | 5.64 mg/l |
| 18 Nov 2024, 14:16 | 7.14 | 7.14 mg/l |
| 31 Oct 2024, 14:27 | 5.65 | 5.65 mg/l |
| 16 Sep 2024, 09:35 | 2.28 | 2.28 mg/l |
| 19 Aug 2024, 15:04 | 2.28 | 2.28 mg/l |
| 17 Jul 2024, 11:50 | 1.79 | 1.79 mg/l |
| 18 Jun 2024, 13:25 | 0.191 | 0.191 mg/l |
| 8 Mar 2024, 15:44 | 6.36 | 6.36 mg/l |
| 5 Feb 2024, 14:29 | 8.37 | 8.37 mg/l |
| 2 Jan 2024, 13:42 | 8.34 | 8.34 mg/l |
| 9 Oct 2023, 09:39 | 2.4 | 2.4 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.23 mg/l
Sampled 14 Sep 2026, 17 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 0.23 | 0.23 mg/l |
| 9 Jul 2026, 11:32 | 0.12 | 0.12 mg/l |
| 17 Jun 2026, 11:19 | 0.058 | 0.058 mg/l |
| 18 May 2026, 12:40 | <0.01 | below 0.01 mg/l (not detected above this) |
| 23 Apr 2026, 14:09 | 0.054 | 0.054 mg/l |
| 12 Mar 2026, 12:01 | 0.061 | 0.061 mg/l |
| 12 Feb 2026, 14:29 | 0.11 | 0.11 mg/l |
| 8 Jan 2026, 14:48 | 0.18 | 0.18 mg/l |
| 9 Dec 2025, 14:45 | 0.22 | 0.22 mg/l |
| 17 Nov 2025, 13:21 | 0.42 | 0.42 mg/l |
| 24 Oct 2025, 11:38 | 0.13 | 0.13 mg/l |
| 9 Sep 2025, 15:12 | 0.095 | 0.095 mg/l |
| 15 Aug 2025, 10:22 | 0.092 | 0.092 mg/l |
| 17 Jul 2025, 13:26 | 0.088 | 0.088 mg/l |
| 10 Jun 2025, 15:01 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 May 2025, 10:36 | 0.013 | 0.013 mg/l |
| 23 Apr 2025, 11:38 | 0.024 | 0.024 mg/l |
| 18 Mar 2025, 15:01 | 0.024 | 0.024 mg/l |
| 6 Feb 2025, 12:52 | 0.099 | 0.099 mg/l |
| 22 Jan 2025, 11:47 | 0.14 | 0.14 mg/l |
| 18 Nov 2024, 14:16 | 0.13 | 0.13 mg/l |
| 31 Oct 2024, 14:27 | 0.11 | 0.11 mg/l |
| 16 Sep 2024, 09:35 | 0.076 | 0.076 mg/l |
| 19 Aug 2024, 15:04 | 0.03 | 0.03 mg/l |
| 17 Jul 2024, 11:50 | 0.35 | 0.35 mg/l |
| 18 Jun 2024, 13:25 | 0.58 | 0.58 mg/l |
| 8 Mar 2024, 15:44 | 0.091 | 0.091 mg/l |
| 5 Feb 2024, 14:29 | 0.11 | 0.11 mg/l |
| 2 Jan 2024, 13:42 | 0.13 | 0.13 mg/l |
| 9 Oct 2023, 09:39 | 0.14 | 0.14 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1031 µS/cm
Sampled 14 Sep 2026, 17 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 16:13 | 1031 | 1031 µS/cm |
| 11 Aug 2026, 11:07 | 916 | 916 µS/cm |
| 9 Jul 2026, 11:32 | 851 | 851 µS/cm |
| 17 Jun 2026, 11:19 | 860 | 860 µS/cm |
| 18 May 2026, 12:40 | 856 | 856 µS/cm |
| 23 Apr 2026, 14:09 | 987 | 987 µS/cm |
| 12 Mar 2026, 12:01 | 806 | 806 µS/cm |
| 12 Feb 2026, 14:29 | 677 | 677 µS/cm |
| 8 Jan 2026, 14:48 | 873 | 873 µS/cm |
| 9 Dec 2025, 14:45 | 786 | 786 µS/cm |
| 17 Nov 2025, 13:21 | 771 | 771 µS/cm |
| 24 Oct 2025, 11:38 | 979 | 979 µS/cm |
| 9 Sep 2025, 15:12 | 988 | 988 µS/cm |
| 15 Aug 2025, 10:22 | 901 | 901 µS/cm |
| 17 Jul 2025, 13:26 | 850 | 850 µS/cm |
| 10 Jun 2025, 15:01 | 873 | 873 µS/cm |
| 14 May 2025, 10:36 | 858 | 858 µS/cm |
| 23 Apr 2025, 11:38 | 893 | 893 µS/cm |
| 18 Mar 2025, 15:01 | 789 | 789 µS/cm |
| 6 Feb 2025, 12:52 | 772 | 772 µS/cm |
| 22 Jan 2025, 11:47 | 823 | 823 µS/cm |
| 3 Dec 2024, 09:31 | 587 | 587 µS/cm |
| 18 Nov 2024, 14:16 | 862 | 862 µS/cm |
| 31 Oct 2024, 14:27 | 745 | 745 µS/cm |
| 16 Sep 2024, 09:35 | 1168 | 1168 µS/cm |
| 19 Aug 2024, 15:04 | 835 | 835 µS/cm |
| 17 Jul 2024, 11:50 | 982 | 982 µS/cm |
| 18 Jun 2024, 13:25 | 566 | 566 µS/cm |
| 8 Mar 2024, 15:44 | 716 | 716 µS/cm |
| 5 Feb 2024, 14:29 | 976 | 976 µS/cm |
| 2 Jan 2024, 13:42 | 750 | 750 µS/cm |
| 9 Oct 2023, 09:39 | 964 | 964 µS/cm |
Everything measured here
28 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 28 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 32 | Oct 2023 – Sep 2026 | 65.5% 14 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Oct 2023 – Sep 2026 | 6.02 mg/l 14 Sep 2026 |
| Temperature of Water 0076 | River water | 32 | Oct 2023 – Sep 2026 | 19.3 °C 14 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 7.46 14 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Sep 2026 | 0.08 mg/l 14 Sep 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Sep 2026 | 1.04 mg/l 14 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Sep 2026 | 0.23 mg/l 14 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Oct 2023 – Sep 2026 | 1031 µS/cm 14 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Jun 2024 – Sep 2026 | 220 mg/l 14 Sep 2026 |
| Alkalinity, Dissolved as CaCO3 7867 | River water | 6 | Apr 2026 – Sep 2026 | 220 mg/l 14 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Jun 2024 – Sep 2026 | 0.00085 mg/l 14 Sep 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | River water | 6 | Apr 2026 – Sep 2026 | 0.088 mg/l 14 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 28 | Oct 2023 – May 2026 | 6.1 mg/l 18 May 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 3 | Oct 2023 – Mar 2024 | 23 mg/l 8 Mar 2024 |
| Chloride 0172 | River water | 4 | Oct 2023 – Mar 2024 | 34 mg/l 8 Mar 2024 |
| Chloride, GF/C Filtered 7190 | River water | 6 | Apr 2026 – Sep 2026 | 110 mg/l 14 Sep 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 4 | Oct 2023 – Mar 2024 | 21 µg/l 8 Mar 2024 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Sep 2026 | 0.06 mg/l 14 Sep 2026 |
| Nitrite, Filtered as N 6485 | River water | 6 | Apr 2026 – Sep 2026 | 0.06 mg/l 14 Sep 2026 |
| Nitrogen, Total as N 9686 | River water | 6 | Apr 2026 – Sep 2026 | 2.1 mg/l 14 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Sep 2026 | 1.1 mg/l 14 Sep 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | River water | 6 | Apr 2026 – Sep 2026 | 1.1 mg/l 14 Sep 2026 |
| No flow /No sample 7668 | River water | 2 | Nov 2023 – Dec 2023 | No flow/discharge at sampling point 6 Dec 2023 |
| Orthophosphate, Filtered as P 9856 | River water | 6 | Apr 2026 – Sep 2026 | 0.22 mg/l 14 Sep 2026 |
| Phosphorus, Total as P 0348 | River water | 10 | Oct 2023 – Sep 2026 | 0.26 mg/l 14 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 4 | Oct 2023 – Mar 2024 | 7.8 mg/l 8 Mar 2024 |
| Silicate, Filtered as SiO2 9857 | River water | 6 | Apr 2026 – Sep 2026 | 6.6 mg/l 14 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 4 | Oct 2023 – Mar 2024 | 31 mg/l 8 Mar 2024 |
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.