Cranbrook Drain Colnefields Farm B1050
EA name: CRANBROOK DRN. COLNEFIELDS FARM B1050 (also listed as “CRANBROOK DRAIN COLNEFIELDS FARM B1050”)
Environment Agency sampling point AN-52M14 · 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
- 2 Sep 2026, 12:3929 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 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 537159, 278102As published, to the nearest 1 m. Open in a map
- River, by its own name
- Cranbrook Drain
- River, by the map
- Cranbrook DrainPlaced on the river its name gives, 7 m from the line.
- Next gauge downstream
- Sutton Gault On the River Great Ouse · 9.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (28 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74.5%
Sampled 2 Sep 2026, 29 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 74.5 | 74.5% |
| 10 Aug 2026, 12:32 | 75.7 | 75.7% |
| 2 Jul 2026, 12:57 | 84.2 | 84.2% |
| 4 Jun 2026, 11:07 | 66.2 | 66.2% |
| 7 May 2026, 11:25 | 85.2 | 85.2% |
| 1 Apr 2026, 12:17 | 77 | 77% |
| 3 Mar 2026, 13:59 | 95.7 | 95.7% |
| 4 Feb 2026, 15:01 | 91.3 | 91.3% |
| 14 Jan 2026, 11:24 | 92.7 | 92.7% |
| 1 Dec 2025, 12:35 | 81.7 | 81.7% |
| 5 Nov 2025, 12:19 | 75.1 | 75.1% |
| 10 Oct 2025, 09:58 | 74.8 | 74.8% |
| 4 Sep 2025, 10:39 | 78.5 | 78.5% |
| 15 Aug 2025, 09:34 | 70.4 | 70.4% |
| 15 Jul 2025, 09:55 | 65.4 | 65.4% |
| 4 Jun 2025, 09:05 | 86.9 | 86.9% |
| 6 May 2025, 12:38 | 97.6 | 97.6% |
| 2 Apr 2025, 15:01 | 133.3 | 133.3% |
| 3 Mar 2025, 15:48 | 100.7 | 100.7% |
| 10 Feb 2025, 12:35 | 91.5 | 91.5% |
| 22 Jan 2025, 12:34 | 91.6 | 91.6% |
| 3 Dec 2024, 14:45 | 88.6 | 88.6% |
| 18 Nov 2024, 15:08 | 77.6 | 77.6% |
| 14 Oct 2024, 14:33 | 80.6 | 80.6% |
| 16 Sep 2024, 14:11 | 83.5 | 83.5% |
| 19 Aug 2024, 13:44 | 94.8 | 94.8% |
| 15 Jul 2024, 15:34 | 76.8 | 76.8% |
| 17 Jun 2024, 10:00 | 79.7 | 79.7% |
| 4 Mar 2024, 14:30 | 87.8 | 87.8% |
| 6 Feb 2024, 11:49 | 82 | 82% |
| 2 Jan 2024, 13:48 | 84.7 | 84.7% |
| 4 Dec 2023, 14:27 | 88.9 | 88.9% |
| 2 Nov 2023, 10:35 | 79.6 | 79.6% |
| 4 Oct 2023, 12:05 | 88.5 | 88.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.03 mg/l
Sampled 2 Sep 2026, 29 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 7.03 | 7.03 mg/l |
| 10 Aug 2026, 12:32 | 6.93 | 6.93 mg/l |
| 2 Jul 2026, 12:57 | 7.73 | 7.73 mg/l |
| 4 Jun 2026, 11:07 | 6.5 | 6.5 mg/l |
| 7 May 2026, 11:25 | 8.9 | 8.9 mg/l |
| 1 Apr 2026, 12:17 | 8.41 | 8.41 mg/l |
| 3 Mar 2026, 13:59 | 10.6 | 10.6 mg/l |
| 4 Feb 2026, 15:01 | 10.9 | 10.9 mg/l |
| 14 Jan 2026, 11:24 | 11.9 | 11.9 mg/l |
| 1 Dec 2025, 12:35 | 9.5 | 9.5 mg/l |
| 5 Nov 2025, 12:19 | 7.72 | 7.72 mg/l |
| 10 Oct 2025, 09:58 | 7.76 | 7.76 mg/l |
| 4 Sep 2025, 10:39 | 7.65 | 7.65 mg/l |
| 15 Aug 2025, 09:34 | 6.47 | 6.47 mg/l |
| 15 Jul 2025, 09:55 | 6.27 | 6.27 mg/l |
| 4 Jun 2025, 09:05 | 9.01 | 9.01 mg/l |
| 6 May 2025, 12:38 | 10.4 | 10.4 mg/l |
| 2 Apr 2025, 15:01 | 13.8 | 13.8 mg/l |
| 3 Mar 2025, 15:48 | 11.9 | 11.9 mg/l |
| 10 Feb 2025, 12:35 | 11.4 | 11.4 mg/l |
| 22 Jan 2025, 12:34 | 11.4 | 11.4 mg/l |
| 3 Dec 2024, 14:45 | 10.3 | 10.3 mg/l |
| 18 Nov 2024, 15:08 | 9 | 9 mg/l |
| 14 Oct 2024, 14:33 | 8.43 | 8.43 mg/l |
| 16 Sep 2024, 14:11 | 8.2 | 8.2 mg/l |
| 19 Aug 2024, 13:44 | 8.95 | 8.95 mg/l |
| 15 Jul 2024, 15:34 | 7.3 | 7.3 mg/l |
| 17 Jun 2024, 10:00 | 7.9 | 7.9 mg/l |
| 4 Mar 2024, 14:30 | 10.3 | 10.3 mg/l |
| 6 Feb 2024, 11:49 | 9.25 | 9.25 mg/l |
| 2 Jan 2024, 13:48 | 9.77 | 9.77 mg/l |
| 4 Dec 2023, 14:27 | 11.1 | 11.1 mg/l |
| 2 Nov 2023, 10:35 | 8.73 | 8.73 mg/l |
| 4 Oct 2023, 12:05 | 8.84 | 8.84 mg/l |
Water temperature
code 0076 · °C
18 °C
Sampled 2 Sep 2026, 29 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 18 | 18 °C |
| 10 Aug 2026, 12:32 | 19.5 | 19.5 °C |
| 2 Jul 2026, 12:57 | 19.4 | 19.4 °C |
| 4 Jun 2026, 11:07 | 16.1 | 16.1 °C |
| 7 May 2026, 11:25 | 13.3 | 13.3 °C |
| 1 Apr 2026, 12:17 | 11.3 | 11.3 °C |
| 3 Mar 2026, 13:59 | 10.8 | 10.8 °C |
| 4 Feb 2026, 15:01 | 7.6 | 7.6 °C |
| 14 Jan 2026, 11:24 | 4.8 | 4.8 °C |
| 1 Dec 2025, 12:35 | 8.7 | 8.7 °C |
| 5 Nov 2025, 12:19 | 14 | 14 °C |
| 10 Oct 2025, 09:58 | 13.6 | 13.6 °C |
| 4 Sep 2025, 10:39 | 16.5 | 16.5 °C |
| 15 Aug 2025, 09:34 | 19.3 | 19.3 °C |
| 15 Jul 2025, 09:55 | 17.3 | 17.3 °C |
| 4 Jun 2025, 09:05 | 13.6 | 13.6 °C |
| 6 May 2025, 12:38 | 12.3 | 12.3 °C |
| 2 Apr 2025, 15:01 | 13.8 | 13.8 °C |
| 3 Mar 2025, 15:48 | 7.9 | 7.9 °C |
| 10 Feb 2025, 12:35 | 5.9 | 5.9 °C |
| 22 Jan 2025, 12:34 | 5.9 | 5.9 °C |
| 3 Dec 2024, 14:45 | 8.6 | 8.6 °C |
| 18 Nov 2024, 15:08 | 8.8 | 8.8 °C |
| 14 Oct 2024, 14:33 | 13.2 | 13.2 °C |
| 16 Sep 2024, 14:11 | 16.1 | 16.1 °C |
| 19 Aug 2024, 13:44 | 18 | 18 °C |
| 15 Jul 2024, 15:34 | 17.7 | 17.7 °C |
| 17 Jun 2024, 10:00 | 15.7 | 15.7 °C |
| 4 Mar 2024, 14:30 | 8.2 | 8.2 °C |
| 6 Feb 2024, 11:49 | 9.9 | 9.9 °C |
| 2 Jan 2024, 13:48 | 9 | 9 °C |
| 4 Dec 2023, 14:27 | 5.9 | 5.9 °C |
| 2 Nov 2023, 10:35 | 11.1 | 11.1 °C |
| 4 Oct 2023, 12:05 | 15.3 | 15.3 °C |
pH
code 0061
7.69
Sampled 2 Sep 2026, 29 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 7.69 | 7.69 |
| 10 Aug 2026, 12:32 | 7.64 | 7.64 |
| 2 Jul 2026, 12:57 | 7.73 | 7.73 |
| 4 Jun 2026, 11:07 | 7.48 | 7.48 |
| 7 May 2026, 11:25 | 7.51 | 7.51 |
| 1 Apr 2026, 12:17 | 7.59 | 7.59 |
| 3 Mar 2026, 13:59 | 7.8 | 7.8 |
| 4 Feb 2026, 15:01 | 7.87 | 7.87 |
| 14 Jan 2026, 11:24 | 7.79 | 7.79 |
| 1 Dec 2025, 12:35 | 7.77 | 7.77 |
| 5 Nov 2025, 12:19 | 7.63 | 7.63 |
| 10 Oct 2025, 09:58 | 7.67 | 7.67 |
| 4 Sep 2025, 10:39 | 7.93 | 7.93 |
| 15 Aug 2025, 09:34 | 7.68 | 7.68 |
| 15 Jul 2025, 09:55 | 7.72 | 7.72 |
| 4 Jun 2025, 09:05 | 7.66 | 7.66 |
| 6 May 2025, 12:38 | 7.86 | 7.86 |
| 2 Apr 2025, 15:01 | 8.14 | 8.14 |
| 3 Mar 2025, 15:48 | 8.05 | 8.05 |
| 10 Feb 2025, 12:35 | 7.94 | 7.94 |
| 22 Jan 2025, 12:34 | 7.84 | 7.84 |
| 3 Dec 2024, 14:45 | 7.89 | 7.89 |
| 18 Nov 2024, 15:08 | 7.74 | 7.74 |
| 14 Oct 2024, 14:33 | 7.7 | 7.7 |
| 16 Sep 2024, 14:11 | 7.85 | 7.85 |
| 19 Aug 2024, 13:44 | 7.96 | 7.96 |
| 15 Jul 2024, 15:34 | 7.72 | 7.72 |
| 17 Jun 2024, 10:00 | 7.83 | 7.83 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Aug 2026, 12:32 | 0.037 | 0.037 mg/l |
| 2 Jul 2026, 12:57 | 0.032 | 0.032 mg/l |
| 4 Jun 2026, 11:07 | 0.6 | 0.6 mg/l |
| 7 May 2026, 11:25 | 0.55 | 0.55 mg/l |
| 1 Apr 2026, 12:17 | 1.2 | 1.2 mg/l |
| 3 Mar 2026, 13:59 | 0.21 | 0.21 mg/l |
| 4 Feb 2026, 15:01 | 0.36 | 0.36 mg/l |
| 14 Jan 2026, 11:24 | 0.39 | 0.39 mg/l |
| 1 Dec 2025, 12:35 | 0.53 | 0.53 mg/l |
| 5 Nov 2025, 12:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2025, 09:58 | 0.038 | 0.038 mg/l |
| 4 Sep 2025, 10:39 | 0.061 | 0.061 mg/l |
| 15 Aug 2025, 09:34 | 0.053 | 0.053 mg/l |
| 15 Jul 2025, 09:55 | 0.28 | 0.28 mg/l |
| 4 Jun 2025, 09:05 | 0.039 | 0.039 mg/l |
| 6 May 2025, 12:38 | 0.76 | 0.76 mg/l |
| 2 Apr 2025, 15:01 | 0.042 | 0.042 mg/l |
| 3 Mar 2025, 15:48 | 0.066 | 0.066 mg/l |
| 10 Feb 2025, 12:35 | 0.23 | 0.23 mg/l |
| 22 Jan 2025, 12:34 | 0.14 | 0.14 mg/l |
| 3 Dec 2024, 14:45 | 0.042 | 0.042 mg/l |
| 18 Nov 2024, 15:08 | 1.2 | 1.2 mg/l |
| 14 Oct 2024, 14:33 | 0.39 | 0.39 mg/l |
| 16 Sep 2024, 14:11 | 0.043 | 0.043 mg/l |
| 19 Aug 2024, 13:44 | 0.034 | 0.034 mg/l |
| 15 Jul 2024, 15:34 | 0.12 | 0.12 mg/l |
| 17 Jun 2024, 10:00 | 0.63 | 0.63 mg/l |
| 4 Mar 2024, 14:30 | 1.5 | 1.5 mg/l |
| 2 Jan 2024, 13:48 | 0.18 | 0.18 mg/l |
| 4 Dec 2023, 14:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Nov 2023, 10:35 | 0.081 | 0.081 mg/l |
| 4 Oct 2023, 12:05 | 0.33 | 0.33 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
22.9 mg/l
Sampled 2 Sep 2026, 29 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 22.9 | 22.9 mg/l |
| 10 Aug 2026, 12:32 | 28.9 | 28.9 mg/l |
| 2 Jul 2026, 12:57 | 28.9 | 28.9 mg/l |
| 4 Jun 2026, 11:07 | 25.3 | 25.3 mg/l |
| 7 May 2026, 11:25 | 33.2 | 33.2 mg/l |
| 1 Apr 2026, 12:17 | 22.3 | 22.3 mg/l |
| 3 Mar 2026, 13:59 | 15.8 | 15.8 mg/l |
| 4 Feb 2026, 15:01 | 15.9 | 15.9 mg/l |
| 14 Jan 2026, 11:24 | 18.8 | 18.8 mg/l |
| 1 Dec 2025, 12:35 | 23.7 | 23.7 mg/l |
| 5 Nov 2025, 12:19 | 27.9 | 27.9 mg/l |
| 10 Oct 2025, 09:58 | 30.9 | 30.9 mg/l |
| 4 Sep 2025, 10:39 | 17.9 | 17.9 mg/l |
| 15 Aug 2025, 09:34 | 34.9 | 34.9 mg/l |
| 15 Jul 2025, 09:55 | 36.5 | 36.5 mg/l |
| 4 Jun 2025, 09:05 | 32.9 | 32.9 mg/l |
| 6 May 2025, 12:38 | 26.5 | 26.5 mg/l |
| 2 Apr 2025, 15:01 | 30.8 | 30.8 mg/l |
| 3 Mar 2025, 15:48 | 16.9 | 16.9 mg/l |
| 10 Feb 2025, 12:35 | 17.9 | 17.9 mg/l |
| 22 Jan 2025, 12:34 | 19.8 | 19.8 mg/l |
| 3 Dec 2024, 14:45 | 18 | 18 mg/l |
| 18 Nov 2024, 15:08 | 25.7 | 25.7 mg/l |
| 14 Oct 2024, 14:33 | 19.8 | 19.8 mg/l |
| 16 Sep 2024, 14:11 | 25.9 | 25.9 mg/l |
| 19 Aug 2024, 13:44 | 25.9 | 25.9 mg/l |
| 15 Jul 2024, 15:34 | 21.8 | 21.8 mg/l |
| 17 Jun 2024, 10:00 | 20.5 | 20.5 mg/l |
| 4 Mar 2024, 14:30 | 9.81 | 9.81 mg/l |
| 6 Feb 2024, 11:49 | 17.7 | 17.7 mg/l |
| 2 Jan 2024, 13:48 | 9.06 | 9.06 mg/l |
| 4 Dec 2023, 14:27 | 15 | 15 mg/l |
| 2 Nov 2023, 10:35 | 16.9 | 16.9 mg/l |
| 4 Oct 2023, 12:05 | 21.7 | 21.7 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.15 mg/l
Sampled 2 Sep 2026, 29 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 0.15 | 0.15 mg/l |
| 10 Aug 2026, 12:32 | 0.16 | 0.16 mg/l |
| 2 Jul 2026, 12:57 | 0.17 | 0.17 mg/l |
| 4 Jun 2026, 11:07 | 0.18 | 0.18 mg/l |
| 7 May 2026, 11:25 | 0.11 | 0.11 mg/l |
| 1 Apr 2026, 12:17 | 0.12 | 0.12 mg/l |
| 3 Mar 2026, 13:59 | 0.1 | 0.1 mg/l |
| 4 Feb 2026, 15:01 | 0.1 | 0.1 mg/l |
| 14 Jan 2026, 11:24 | 0.11 | 0.11 mg/l |
| 1 Dec 2025, 12:35 | 0.14 | 0.14 mg/l |
| 5 Nov 2025, 12:19 | 0.15 | 0.15 mg/l |
| 10 Oct 2025, 09:58 | 0.2 | 0.2 mg/l |
| 4 Sep 2025, 10:39 | 0.23 | 0.23 mg/l |
| 15 Aug 2025, 09:34 | 0.23 | 0.23 mg/l |
| 15 Jul 2025, 09:55 | 0.27 | 0.27 mg/l |
| 4 Jun 2025, 09:05 | 0.27 | 0.27 mg/l |
| 6 May 2025, 12:38 | 0.45 | 0.45 mg/l |
| 2 Apr 2025, 15:01 | 0.25 | 0.25 mg/l |
| 3 Mar 2025, 15:48 | 0.095 | 0.095 mg/l |
| 10 Feb 2025, 12:35 | 0.13 | 0.13 mg/l |
| 22 Jan 2025, 12:34 | 0.17 | 0.17 mg/l |
| 18 Nov 2024, 15:08 | 0.41 | 0.41 mg/l |
| 14 Oct 2024, 14:33 | 0.17 | 0.17 mg/l |
| 16 Sep 2024, 14:11 | 0.64 | 0.64 mg/l |
| 19 Aug 2024, 13:44 | 0.75 | 0.75 mg/l |
| 15 Jul 2024, 15:34 | 0.73 | 0.73 mg/l |
| 17 Jun 2024, 10:00 | 0.54 | 0.54 mg/l |
| 4 Mar 2024, 14:30 | 0.15 | 0.15 mg/l |
| 6 Feb 2024, 11:49 | 0.14 | 0.14 mg/l |
| 2 Jan 2024, 13:48 | 0.18 | 0.18 mg/l |
| 4 Dec 2023, 14:27 | 0.18 | 0.18 mg/l |
| 2 Nov 2023, 10:35 | 0.13 | 0.13 mg/l |
| 4 Oct 2023, 12:05 | 0.21 | 0.21 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
961 µS/cm
Sampled 2 Sep 2026, 29 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 12:39 | 961 | 961 µS/cm |
| 10 Aug 2026, 12:32 | 984 | 984 µS/cm |
| 2 Jul 2026, 12:57 | 985 | 985 µS/cm |
| 4 Jun 2026, 11:07 | 937 | 937 µS/cm |
| 7 May 2026, 11:25 | 1041 | 1041 µS/cm |
| 1 Apr 2026, 12:17 | 1026 | 1026 µS/cm |
| 3 Mar 2026, 13:59 | 951 | 951 µS/cm |
| 4 Feb 2026, 15:01 | 883 | 883 µS/cm |
| 14 Jan 2026, 11:24 | 899 | 899 µS/cm |
| 1 Dec 2025, 12:35 | 1018 | 1018 µS/cm |
| 5 Nov 2025, 12:19 | 982 | 982 µS/cm |
| 10 Oct 2025, 09:58 | 1031 | 1031 µS/cm |
| 4 Sep 2025, 10:39 | 993 | 993 µS/cm |
| 15 Aug 2025, 09:34 | 1023 | 1023 µS/cm |
| 15 Jul 2025, 09:55 | 1050 | 1050 µS/cm |
| 4 Jun 2025, 09:05 | 1001 | 1001 µS/cm |
| 6 May 2025, 12:38 | 1014 | 1014 µS/cm |
| 2 Apr 2025, 15:01 | 1035 | 1035 µS/cm |
| 3 Mar 2025, 15:48 | 1018 | 1018 µS/cm |
| 10 Feb 2025, 12:35 | 999 | 999 µS/cm |
| 22 Jan 2025, 12:34 | 1074 | 1074 µS/cm |
| 3 Dec 2024, 14:45 | 969 | 969 µS/cm |
| 18 Nov 2024, 15:08 | 1130 | 1130 µS/cm |
| 14 Oct 2024, 14:33 | 946 | 946 µS/cm |
| 16 Sep 2024, 14:11 | 984 | 984 µS/cm |
| 19 Aug 2024, 13:44 | 972 | 972 µS/cm |
| 15 Jul 2024, 15:34 | 963 | 963 µS/cm |
| 17 Jun 2024, 10:00 | 1042 | 1042 µS/cm |
| 4 Mar 2024, 14:30 | 924 | 924 µS/cm |
| 6 Feb 2024, 11:49 | 1055 | 1055 µS/cm |
| 2 Jan 2024, 13:48 | 546 | 546 µS/cm |
| 4 Dec 2023, 14:27 | 640 | 640 µS/cm |
| 2 Nov 2023, 10:35 | 803 | 803 µS/cm |
| 4 Oct 2023, 12:05 | 1023 | 1023 µS/cm |
Everything measured here
19 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 19 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 74.5% 2 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 7.03 mg/l 2 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 18 °C 2 Sep 2026 |
| pH 0061 | River water | 28 | Jun 2024 – Sep 2026 | 7.69 2 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | below 0.03 mg/l 2 Sep 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Sep 2026 | 22.9 mg/l 2 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Sep 2026 | 0.15 mg/l 2 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 961 µS/cm 2 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Jun 2024 – Sep 2026 | 150 mg/l 2 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Jun 2024 – Sep 2026 | below 0.00049 mg/l 2 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 28 | Oct 2023 – May 2026 | below 3 mg/l 7 May 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 5 | Oct 2023 – Mar 2024 | 27 mg/l 4 Mar 2024 |
| Chloride 0172 | River water | 6 | Oct 2023 – Mar 2024 | 44 mg/l 4 Mar 2024 |
| Chlorophyll : Acetone Extract 7887 | River water | 6 | Oct 2023 – Mar 2024 | 1.2 µg/l 4 Mar 2024 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Sep 2026 | 0.054 mg/l 2 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Sep 2026 | 23 mg/l 2 Sep 2026 |
| Phosphorus, Total as P 0348 | River water | 6 | Oct 2023 – Mar 2024 | 0.22 mg/l 4 Mar 2024 |
| Silica, reactive as SiO2 0182 | River water | 6 | Oct 2023 – Mar 2024 | 9.9 mg/l 4 Mar 2024 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Oct 2023 – Mar 2024 | 22 mg/l 4 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.