Old River Slea Evedon
EA name: OLD R.SLEA EVEDON
Environment Agency sampling point AN-SLEA5 · 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
- 7 Sep 2026, 10:3924 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 Environmental monitoring statutory (EU directives)
- Where
- National Grid 509165, 347740As published, to the nearest 1 m. Open in a map
- River, by its own name
- Old Slea
- River, by the map
- Old River SleaPlaced on the river its name gives, 7 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (28 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
57.4%
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 57.4 | 57.4% |
| 3 Aug 2026, 10:10 | 47.8 | 47.8% |
| 3 Jul 2026, 09:50 | 45.7 | 45.7% |
| 9 Jun 2026, 09:25 | 53.3 | 53.3% |
| 18 May 2026, 11:41 | 78.4 | 78.4% |
| 10 Apr 2026, 09:21 | 73.6 | 73.6% |
| 5 Mar 2026, 09:43 | 48.2 | 48.2% |
| 4 Feb 2026, 11:22 | 66.3 | 66.3% |
| 13 Jan 2026, 11:03 | 79.7 | 79.7% |
| 4 Dec 2025, 10:50 | 77.8 | 77.8% |
| 6 Nov 2025, 10:48 | 75.4 | 75.4% |
| 8 Oct 2025, 09:13 | 60.6 | 60.6% |
| 3 Sep 2025, 08:49 | 50.8 | 50.8% |
| 14 Aug 2025, 09:19 | 82.7 | 82.7% |
| 2 Jul 2025, 09:43 | 52.2 | 52.2% |
| 13 Jun 2025, 09:35 | 58.7 | 58.7% |
| 2 May 2025, 09:50 | 85.1 | 85.1% |
| 1 Apr 2025, 10:52 | 93.1 | 93.1% |
| 7 Mar 2025, 10:31 | 82.6 | 82.6% |
| 14 Feb 2025, 09:50 | 93.4 | 93.4% |
| 7 Jan 2025, 11:32 | 82.5 | 82.5% |
| 4 Dec 2024, 09:55 | 87.6 | 87.6% |
| 13 Nov 2024, 10:02 | 63.7 | 63.7% |
| 23 Oct 2024, 11:03 | 66.1 | 66.1% |
| 3 Sep 2024, 10:13 | 42 | 42% |
| 1 Aug 2024, 09:08 | 51.7 | 51.7% |
| 4 Jul 2024, 09:32 | 64.3 | 64.3% |
| 13 Jun 2024, 12:02 | 89.1 | 89.1% |
| 8 Mar 2024, 10:03 | 74.6 | 74.6% |
| 2 Feb 2024, 10:44 | 51.3 | 51.3% |
| 3 Jan 2024, 09:45 | 68.4 | 68.4% |
| 1 Dec 2023, 10:50 | 67.1 | 67.1% |
| 7 Nov 2023, 10:00 | 35.2 | 35.2% |
| 4 Oct 2023, 10:11 | 76.2 | 76.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.36 mg/l
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 5.36 | 5.36 mg/l |
| 3 Aug 2026, 10:10 | 4.44 | 4.44 mg/l |
| 3 Jul 2026, 09:50 | 4.36 | 4.36 mg/l |
| 9 Jun 2026, 09:25 | 5.36 | 5.36 mg/l |
| 18 May 2026, 11:41 | 8.13 | 8.13 mg/l |
| 10 Apr 2026, 09:21 | 8.33 | 8.33 mg/l |
| 5 Mar 2026, 09:43 | 5.47 | 5.47 mg/l |
| 4 Feb 2026, 11:22 | 7.84 | 7.84 mg/l |
| 13 Jan 2026, 11:03 | 9.26 | 9.26 mg/l |
| 4 Dec 2025, 10:50 | 8.87 | 8.87 mg/l |
| 6 Nov 2025, 10:48 | 7.77 | 7.77 mg/l |
| 8 Oct 2025, 09:13 | 6.08 | 6.08 mg/l |
| 3 Sep 2025, 08:49 | 4.94 | 4.94 mg/l |
| 14 Aug 2025, 09:19 | 7.96 | 7.96 mg/l |
| 2 Jul 2025, 09:43 | 4.83 | 4.83 mg/l |
| 13 Jun 2025, 09:35 | 5.59 | 5.59 mg/l |
| 2 May 2025, 09:50 | 8.5 | 8.5 mg/l |
| 1 Apr 2025, 10:52 | 10.3 | 10.3 mg/l |
| 7 Mar 2025, 10:31 | 9.22 | 9.22 mg/l |
| 14 Feb 2025, 09:50 | 11.6 | 11.6 mg/l |
| 7 Jan 2025, 11:32 | 10.3 | 10.3 mg/l |
| 4 Dec 2024, 09:55 | 10.6 | 10.6 mg/l |
| 13 Nov 2024, 10:02 | 7.14 | 7.14 mg/l |
| 23 Oct 2024, 11:03 | 7.09 | 7.09 mg/l |
| 3 Sep 2024, 10:13 | 3.95 | 3.95 mg/l |
| 1 Aug 2024, 09:08 | 4.89 | 4.89 mg/l |
| 4 Jul 2024, 09:32 | 6.52 | 6.52 mg/l |
| 13 Jun 2024, 12:02 | 9.06 | 9.06 mg/l |
| 8 Mar 2024, 10:03 | 8.71 | 8.71 mg/l |
| 2 Feb 2024, 10:44 | 5.96 | 5.96 mg/l |
| 3 Jan 2024, 09:45 | 8.03 | 8.03 mg/l |
| 1 Dec 2023, 10:50 | 7.99 | 7.99 mg/l |
| 7 Nov 2023, 10:00 | 3.86 | 3.86 mg/l |
| 4 Oct 2023, 10:11 | 7.75 | 7.75 mg/l |
Water temperature
code 0076 · °C
18.5 °C
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 18.5 | 18.5 °C |
| 3 Aug 2026, 10:10 | 18.8 | 18.8 °C |
| 3 Jul 2026, 09:50 | 17.5 | 17.5 °C |
| 9 Jun 2026, 09:25 | 15 | 15 °C |
| 18 May 2026, 11:41 | 13.6 | 13.6 °C |
| 10 Apr 2026, 09:21 | 9.8 | 9.8 °C |
| 5 Mar 2026, 09:43 | 9.7 | 9.7 °C |
| 4 Feb 2026, 11:22 | 8 | 8 °C |
| 13 Jan 2026, 11:03 | 8.7 | 8.7 °C |
| 4 Dec 2025, 10:50 | 9.5 | 9.5 °C |
| 6 Nov 2025, 10:48 | 13.9 | 13.9 °C |
| 8 Oct 2025, 09:13 | 15.1 | 15.1 °C |
| 3 Sep 2025, 08:49 | 16.6 | 16.6 °C |
| 14 Aug 2025, 09:19 | 17.1 | 17.1 °C |
| 2 Jul 2025, 09:43 | 19 | 19 °C |
| 13 Jun 2025, 09:35 | 17.6 | 17.6 °C |
| 2 May 2025, 09:50 | 15.3 | 15.3 °C |
| 1 Apr 2025, 10:52 | 10.7 | 10.7 °C |
| 7 Mar 2025, 10:31 | 10.4 | 10.4 °C |
| 14 Feb 2025, 09:50 | 6.2 | 6.2 °C |
| 7 Jan 2025, 11:32 | 6 | 6 °C |
| 4 Dec 2024, 09:55 | 7.2 | 7.2 °C |
| 13 Nov 2024, 10:02 | 10.2 | 10.2 °C |
| 23 Oct 2024, 11:03 | 12.1 | 12.1 °C |
| 3 Sep 2024, 10:13 | 18.2 | 18.2 °C |
| 1 Aug 2024, 09:08 | 17.9 | 17.9 °C |
| 4 Jul 2024, 09:32 | 14.6 | 14.6 °C |
| 13 Jun 2024, 12:02 | 14.5 | 14.5 °C |
| 8 Mar 2024, 10:03 | 8.5 | 8.5 °C |
| 2 Feb 2024, 10:44 | 8.7 | 8.7 °C |
| 3 Jan 2024, 09:45 | 8.3 | 8.3 °C |
| 1 Dec 2023, 10:50 | 7.7 | 7.7 °C |
| 7 Nov 2023, 10:00 | 11.1 | 11.1 °C |
| 4 Oct 2023, 10:11 | 14.5 | 14.5 °C |
pH
code 0061
7.83
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 7.83 | 7.83 |
| 3 Aug 2026, 10:10 | 7.59 | 7.59 |
| 3 Jul 2026, 09:50 | 7.41 | 7.41 |
| 9 Jun 2026, 09:25 | 7.4 | 7.4 |
| 18 May 2026, 11:41 | 7.62 | 7.62 |
| 10 Apr 2026, 09:21 | 7.66 | 7.66 |
| 5 Mar 2026, 09:43 | 7.56 | 7.56 |
| 4 Feb 2026, 11:22 | 7.72 | 7.72 |
| 13 Jan 2026, 11:03 | 7.85 | 7.85 |
| 4 Dec 2025, 10:50 | 7.68 | 7.68 |
| 6 Nov 2025, 10:48 | 7.69 | 7.69 |
| 8 Oct 2025, 09:13 | 7.62 | 7.62 |
| 3 Sep 2025, 08:49 | 7.41 | 7.41 |
| 14 Aug 2025, 09:19 | 7.87 | 7.87 |
| 2 Jul 2025, 09:43 | 7.52 | 7.52 |
| 13 Jun 2025, 09:35 | 7.51 | 7.51 |
| 2 May 2025, 09:50 | 7.61 | 7.61 |
| 1 Apr 2025, 10:52 | 7.88 | 7.88 |
| 7 Mar 2025, 10:31 | 7.68 | 7.68 |
| 14 Feb 2025, 09:50 | 7.87 | 7.87 |
| 7 Jan 2025, 11:32 | 7.64 | 7.64 |
| 4 Dec 2024, 09:55 | 7.91 | 7.91 |
| 13 Nov 2024, 10:02 | 7.72 | 7.72 |
| 23 Oct 2024, 11:03 | 7.69 | 7.69 |
| 3 Sep 2024, 10:13 | 7.65 | 7.65 |
| 1 Aug 2024, 09:08 | 7.5 | 7.5 |
| 4 Jul 2024, 09:32 | 7.73 | 7.73 |
| 13 Jun 2024, 12:02 | 7.86 | 7.86 |
| 8 Mar 2024, 10:03 | 7.68 | 7.68 |
| 2 Feb 2024, 10:44 | 7.7 | 7.7 |
| 3 Jan 2024, 09:45 | 7.56 | 7.56 |
| 1 Dec 2023, 10:50 | 7.61 | 7.61 |
| 7 Nov 2023, 10:00 | 7.57 | 7.57 |
| 4 Oct 2023, 10:11 | 7.64 | 7.64 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.12 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 0.12 | 0.12 mg/l |
| 3 Aug 2026, 10:10 | 0.071 | 0.071 mg/l |
| 3 Jul 2026, 09:50 | 1.3 | 1.3 mg/l |
| 9 Jun 2026, 09:25 | 0.21 | 0.21 mg/l |
| 18 May 2026, 11:41 | 0.15 | 0.15 mg/l |
| 10 Apr 2026, 09:21 | 0.15 | 0.15 mg/l |
| 5 Mar 2026, 09:43 | 0.14 | 0.14 mg/l |
| 4 Feb 2026, 11:22 | 0.15 | 0.15 mg/l |
| 13 Jan 2026, 11:03 | 0.05 | 0.05 mg/l |
| 4 Dec 2025, 10:50 | 0.039 | 0.039 mg/l |
| 6 Nov 2025, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 09:13 | 0.054 | 0.054 mg/l |
| 3 Sep 2025, 08:49 | 0.12 | 0.12 mg/l |
| 14 Aug 2025, 09:19 | 0.35 | 0.35 mg/l |
| 2 Jul 2025, 09:43 | 0.092 | 0.092 mg/l |
| 13 Jun 2025, 09:35 | 0.18 | 0.18 mg/l |
| 2 May 2025, 09:50 | 0.038 | 0.038 mg/l |
| 7 Mar 2025, 10:31 | 0.29 | 0.29 mg/l |
| 14 Feb 2025, 09:50 | 0.051 | 0.051 mg/l |
| 7 Jan 2025, 11:32 | 1.4 | 1.4 mg/l |
| 4 Dec 2024, 09:55 | 0.064 | 0.064 mg/l |
| 13 Nov 2024, 10:02 | 0.37 | 0.37 mg/l |
| 23 Oct 2024, 11:03 | 0.14 | 0.14 mg/l |
| 3 Sep 2024, 10:13 | 1.1 | 1.1 mg/l |
| 1 Aug 2024, 09:08 | 0.09 | 0.09 mg/l |
| 4 Jul 2024, 09:32 | 0.18 | 0.18 mg/l |
| 13 Jun 2024, 12:02 | 0.1 | 0.1 mg/l |
| 8 Mar 2024, 10:03 | 0.16 | 0.16 mg/l |
| 2 Feb 2024, 10:44 | 2.2 | 2.2 mg/l |
| 3 Jan 2024, 09:45 | 0.61 | 0.61 mg/l |
| 1 Dec 2023, 10:50 | 0.056 | 0.056 mg/l |
| 7 Nov 2023, 10:00 | 1.6 | 1.6 mg/l |
| 4 Oct 2023, 10:11 | 0.042 | 0.042 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.8 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 18.8 | 18.8 mg/l |
| 3 Aug 2026, 10:10 | 19.9 | 19.9 mg/l |
| 3 Jul 2026, 09:50 | 20.3 | 20.3 mg/l |
| 9 Jun 2026, 09:25 | 17.6 | 17.6 mg/l |
| 18 May 2026, 11:41 | 18.5 | 18.5 mg/l |
| 10 Apr 2026, 09:21 | 18.7 | 18.7 mg/l |
| 5 Mar 2026, 09:43 | 14.8 | 14.8 mg/l |
| 4 Feb 2026, 11:22 | 12.9 | 12.9 mg/l |
| 13 Jan 2026, 11:03 | 12.9 | 12.9 mg/l |
| 4 Dec 2025, 10:50 | 16.9 | 16.9 mg/l |
| 6 Nov 2025, 10:48 | 18.9 | 18.9 mg/l |
| 8 Oct 2025, 09:13 | 19.9 | 19.9 mg/l |
| 3 Sep 2025, 08:49 | 20.7 | 20.7 mg/l |
| 14 Aug 2025, 09:19 | 18.6 | 18.6 mg/l |
| 2 Jul 2025, 09:43 | 20.9 | 20.9 mg/l |
| 13 Jun 2025, 09:35 | 18.6 | 18.6 mg/l |
| 2 May 2025, 09:50 | 18.9 | 18.9 mg/l |
| 7 Mar 2025, 10:31 | 20.8 | 20.8 mg/l |
| 14 Feb 2025, 09:50 | 17 | 17 mg/l |
| 7 Jan 2025, 11:32 | 8.72 | 8.72 mg/l |
| 4 Dec 2024, 09:55 | 16.9 | 16.9 mg/l |
| 13 Nov 2024, 10:02 | 18.7 | 18.7 mg/l |
| 23 Oct 2024, 11:03 | 13.8 | 13.8 mg/l |
| 3 Sep 2024, 10:13 | 17.5 | 17.5 mg/l |
| 1 Aug 2024, 09:08 | 17.9 | 17.9 mg/l |
| 4 Jul 2024, 09:32 | 17.8 | 17.8 mg/l |
| 13 Jun 2024, 12:02 | 18.9 | 18.9 mg/l |
| 8 Mar 2024, 10:03 | 14.9 | 14.9 mg/l |
| 2 Feb 2024, 10:44 | 13.4 | 13.4 mg/l |
| 3 Jan 2024, 09:45 | 7.91 | 7.91 mg/l |
| 1 Dec 2023, 10:50 | 13.9 | 13.9 mg/l |
| 7 Nov 2023, 10:00 | 11.7 | 11.7 mg/l |
| 4 Oct 2023, 10:11 | 16.9 | 16.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.29 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 0.29 | 0.29 mg/l |
| 3 Aug 2026, 10:10 | 0.19 | 0.19 mg/l |
| 3 Jul 2026, 09:50 | 0.2 | 0.2 mg/l |
| 9 Jun 2026, 09:25 | 0.4 | 0.4 mg/l |
| 18 May 2026, 11:41 | 0.31 | 0.31 mg/l |
| 10 Apr 2026, 09:21 | 0.26 | 0.26 mg/l |
| 5 Mar 2026, 09:43 | 0.47 | 0.47 mg/l |
| 4 Feb 2026, 11:22 | 0.51 | 0.51 mg/l |
| 13 Jan 2026, 11:03 | 0.37 | 0.37 mg/l |
| 4 Dec 2025, 10:50 | 0.45 | 0.45 mg/l |
| 6 Nov 2025, 10:48 | 0.68 | 0.68 mg/l |
| 8 Oct 2025, 09:13 | 0.61 | 0.61 mg/l |
| 3 Sep 2025, 08:49 | 0.51 | 0.51 mg/l |
| 14 Aug 2025, 09:19 | 0.57 | 0.57 mg/l |
| 2 Jul 2025, 09:43 | 0.52 | 0.52 mg/l |
| 13 Jun 2025, 09:35 | 0.5 | 0.5 mg/l |
| 2 May 2025, 09:50 | 0.79 | 0.79 mg/l |
| 7 Mar 2025, 10:31 | 0.73 | 0.73 mg/l |
| 14 Feb 2025, 09:50 | 0.48 | 0.48 mg/l |
| 7 Jan 2025, 11:32 | 0.38 | 0.38 mg/l |
| 4 Dec 2024, 09:55 | 0.4 | 0.4 mg/l |
| 13 Nov 2024, 10:02 | 0.47 | 0.47 mg/l |
| 23 Oct 2024, 11:03 | 0.4 | 0.4 mg/l |
| 3 Sep 2024, 10:13 | 0.63 | 0.63 mg/l |
| 1 Aug 2024, 09:08 | 0.49 | 0.49 mg/l |
| 4 Jul 2024, 09:32 | 0.38 | 0.38 mg/l |
| 13 Jun 2024, 12:02 | 0.47 | 0.47 mg/l |
| 8 Mar 2024, 10:03 | 0.22 | 0.22 mg/l |
| 2 Feb 2024, 10:44 | 0.25 | 0.25 mg/l |
| 3 Jan 2024, 09:45 | 0.17 | 0.17 mg/l |
| 1 Dec 2023, 10:50 | 0.24 | 0.24 mg/l |
| 7 Nov 2023, 10:00 | 0.29 | 0.29 mg/l |
| 4 Oct 2023, 10:11 | 0.53 | 0.53 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1054 µS/cm
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 10:39 | 1054 | 1054 µS/cm |
| 3 Aug 2026, 10:10 | 1056 | 1056 µS/cm |
| 3 Jul 2026, 09:50 | 1095 | 1095 µS/cm |
| 9 Jun 2026, 09:25 | 1015 | 1015 µS/cm |
| 18 May 2026, 11:41 | 1122 | 1122 µS/cm |
| 10 Apr 2026, 09:21 | 1057 | 1057 µS/cm |
| 5 Mar 2026, 09:43 | 1009 | 1009 µS/cm |
| 4 Feb 2026, 11:22 | 929 | 929 µS/cm |
| 13 Jan 2026, 11:03 | 971 | 971 µS/cm |
| 4 Dec 2025, 10:50 | 1003 | 1003 µS/cm |
| 6 Nov 2025, 10:48 | 1043 | 1043 µS/cm |
| 8 Oct 2025, 09:13 | 1066 | 1066 µS/cm |
| 3 Sep 2025, 08:49 | 1158 | 1158 µS/cm |
| 14 Aug 2025, 09:19 | 1098 | 1098 µS/cm |
| 2 Jul 2025, 09:43 | 1125 | 1125 µS/cm |
| 13 Jun 2025, 09:35 | 1088 | 1088 µS/cm |
| 2 May 2025, 09:50 | 1058 | 1058 µS/cm |
| 1 Apr 2025, 10:52 | 1056 | 1056 µS/cm |
| 7 Mar 2025, 10:31 | 1090 | 1090 µS/cm |
| 14 Feb 2025, 09:50 | 990 | 990 µS/cm |
| 7 Jan 2025, 11:32 | 742 | 742 µS/cm |
| 4 Dec 2024, 09:55 | 949 | 949 µS/cm |
| 13 Nov 2024, 10:02 | 996 | 996 µS/cm |
| 23 Oct 2024, 11:03 | 917 | 917 µS/cm |
| 3 Sep 2024, 10:13 | 1059 | 1059 µS/cm |
| 1 Aug 2024, 09:08 | 1048 | 1048 µS/cm |
| 4 Jul 2024, 09:32 | 976 | 976 µS/cm |
| 13 Jun 2024, 12:02 | 1046 | 1046 µS/cm |
| 8 Mar 2024, 10:03 | 1013 | 1013 µS/cm |
| 2 Feb 2024, 10:44 | 1271 | 1271 µS/cm |
| 3 Jan 2024, 09:45 | 685 | 685 µS/cm |
| 1 Dec 2023, 10:50 | 991 | 991 µS/cm |
| 7 Nov 2023, 10:00 | 980 | 980 µS/cm |
| 4 Oct 2023, 10:11 | 1051 | 1051 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 57.4% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 5.36 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 18.5 °C 7 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 7.83 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | 0.12 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Sep 2026 | 18.8 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Sep 2026 | 0.29 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 1054 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Sep 2026 | 170 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Sep 2026 | 0.00278 mg/l 7 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 6 | Oct 2023 – Mar 2024 | below 2 mg/l 8 Mar 2024 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Sep 2026 | 0.23 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Sep 2026 | 19 mg/l 7 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.