River Deer at Rydon Bridge
EA name: RIVER DEER AT RYDON BRIDGE
Environment Agency sampling point SW-81201470 · 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, 10:0317 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 20 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 233589, 104127As published, to the nearest 1 m. Open in a map
- River, by its own name
- Deer
- River, by the map
- River DeerPlaced on the river its name gives, 14 m from the line.
- Next gauge downstream
- Polson Bridge On the River Tamar · 29 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Planned investigation (local monitoring) (7 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.1%
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 87.1 | 87.1% |
| 17 Aug 2026, 12:00 | 76.4 | 76.4% |
| 14 Jul 2026, 13:53 | 88.7 | 88.7% |
| 8 Jun 2026, 13:39 | 93.1 | 93.1% |
| 11 May 2026, 15:04 | 97.9 | 97.9% |
| 23 Apr 2026, 13:32 | 103.7 | 103.7% |
| 27 Mar 2026, 11:50 | 95.3 | 95.3% |
| 6 Feb 2026, 11:18 | 97 | 97% |
| 6 Jan 2026, 14:17 | 99.6 | 99.6% |
| 9 Dec 2025, 11:50 | 93.5 | 93.5% |
| 11 Nov 2025, 12:10 | 93.9 | 93.9% |
| 6 Oct 2025, 10:55 | 95.8 | 95.8% |
| 4 Sep 2025, 12:48 | 85.7 | 85.7% |
| 4 Aug 2025, 10:55 | 87.6 | 87.6% |
| 29 Jul 2025, 13:43 | 90.9 | 90.9% |
| 26 Jun 2025, 11:23 | 92.3 | 92.3% |
| 19 May 2025, 11:09 | 96.4 | 96.4% |
| 4 Apr 2025, 11:12 | 95.8 | 95.8% |
| 21 Mar 2025, 11:24 | 100.8 | 100.8% |
| 5 Feb 2025, 12:49 | 98.7 | 98.7% |
| 21 Jan 2025, 12:58 | 98.4 | 98.4% |
| 10 Dec 2024, 12:06 | 97.9 | 97.9% |
| 19 Nov 2024, 12:17 | 93.4 | 93.4% |
| 16 Oct 2024, 11:16 | 93.1 | 93.1% |
| 30 Sep 2024, 09:30 | 93.1 | 93.1% |
| 17 Jul 2024, 13:01 | 95.5 | 95.5% |
| 19 Jun 2024, 14:36 | 98.4 | 98.4% |
| 4 Mar 2024, 11:20 | 96.5 | 96.5% |
| 1 Feb 2024, 12:37 | 97.4 | 97.4% |
| 17 Jan 2024, 12:30 | 97.7 | 97.7% |
| 5 Dec 2023, 13:27 | 96.1 | 96.1% |
| 7 Nov 2023, 10:45 | 96.3 | 96.3% |
| 20 Oct 2023, 10:38 | 98.3 | 98.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.5 mg/l
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 8.5 | 8.5 mg/l |
| 17 Aug 2026, 12:00 | 7.36 | 7.36 mg/l |
| 14 Jul 2026, 13:53 | 8.27 | 8.27 mg/l |
| 8 Jun 2026, 13:39 | 9.68 | 9.68 mg/l |
| 11 May 2026, 15:04 | 10.8 | 10.8 mg/l |
| 23 Apr 2026, 13:32 | 11.3 | 11.3 mg/l |
| 27 Mar 2026, 11:50 | 10.8 | 10.8 mg/l |
| 6 Feb 2026, 11:18 | 11.4 | 11.4 mg/l |
| 6 Jan 2026, 14:17 | 13.3 | 13.3 mg/l |
| 9 Dec 2025, 11:50 | 10.1 | 10.1 mg/l |
| 11 Nov 2025, 12:10 | 10.1 | 10.1 mg/l |
| 6 Oct 2025, 10:55 | 10.2 | 10.2 mg/l |
| 4 Sep 2025, 12:48 | 8.73 | 8.73 mg/l |
| 4 Aug 2025, 10:55 | 8.55 | 8.55 mg/l |
| 29 Jul 2025, 13:43 | 9.01 | 9.01 mg/l |
| 26 Jun 2025, 11:23 | 9.14 | 9.14 mg/l |
| 19 May 2025, 11:09 | 10.3 | 10.3 mg/l |
| 4 Apr 2025, 11:12 | 10.8 | 10.8 mg/l |
| 21 Mar 2025, 11:24 | 11.5 | 11.5 mg/l |
| 5 Feb 2025, 12:49 | 12.1 | 12.1 mg/l |
| 21 Jan 2025, 12:58 | 12.4 | 12.4 mg/l |
| 10 Dec 2024, 12:06 | 11.7 | 11.7 mg/l |
| 19 Nov 2024, 12:17 | 10.5 | 10.5 mg/l |
| 16 Oct 2024, 11:16 | 9.53 | 9.53 mg/l |
| 30 Sep 2024, 09:30 | 9.76 | 9.76 mg/l |
| 17 Jul 2024, 13:01 | 9.67 | 9.67 mg/l |
| 19 Jun 2024, 14:36 | 10.1 | 10.1 mg/l |
| 4 Mar 2024, 11:20 | 11.8 | 11.8 mg/l |
| 1 Feb 2024, 12:37 | 11.5 | 11.5 mg/l |
| 17 Jan 2024, 12:30 | 12.9 | 12.9 mg/l |
| 5 Dec 2023, 13:27 | 11.4 | 11.4 mg/l |
| 7 Nov 2023, 10:45 | 10.8 | 10.8 mg/l |
| 20 Oct 2023, 10:38 | 10.5 | 10.5 mg/l |
Water temperature
code 0076 · °C
16.4 °C
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 16.4 | 16.4 °C |
| 17 Aug 2026, 12:00 | 17 | 17 °C |
| 14 Jul 2026, 13:53 | 18.6 | 18.6 °C |
| 8 Jun 2026, 13:39 | 13.5 | 13.5 °C |
| 11 May 2026, 15:04 | 11 | 11 °C |
| 23 Apr 2026, 13:32 | 11.3 | 11.3 °C |
| 27 Mar 2026, 11:50 | 9.8 | 9.8 °C |
| 6 Feb 2026, 11:18 | 8.4 | 8.4 °C |
| 6 Jan 2026, 14:17 | 3.3 | 3.3 °C |
| 9 Dec 2025, 11:50 | 11.7 | 11.7 °C |
| 11 Nov 2025, 12:10 | 12 | 12 °C |
| 6 Oct 2025, 10:55 | 12.3 | 12.3 °C |
| 4 Sep 2025, 12:48 | 14.4 | 14.4 °C |
| 4 Aug 2025, 10:55 | 16.4 | 16.4 °C |
| 29 Jul 2025, 13:43 | 15.7 | 15.7 °C |
| 26 Jun 2025, 11:23 | 15.7 | 15.7 °C |
| 19 May 2025, 11:09 | 12.2 | 12.2 °C |
| 4 Apr 2025, 11:12 | 10.1 | 10.1 °C |
| 21 Mar 2025, 11:24 | 9.4 | 9.4 °C |
| 5 Feb 2025, 12:49 | 6.7 | 6.7 °C |
| 21 Jan 2025, 12:58 | 5.5 | 5.5 °C |
| 10 Dec 2024, 12:06 | 7.6 | 7.6 °C |
| 19 Nov 2024, 12:17 | 10 | 10 °C |
| 16 Oct 2024, 11:16 | 14.2 | 14.2 °C |
| 30 Sep 2024, 09:30 | 13.1 | 13.1 °C |
| 17 Jul 2024, 13:01 | 14.7 | 14.7 °C |
| 19 Jun 2024, 14:36 | 14.1 | 14.1 °C |
| 4 Mar 2024, 11:20 | 6.8 | 6.8 °C |
| 1 Feb 2024, 12:37 | 7.9 | 7.9 °C |
| 17 Jan 2024, 12:30 | 3.8 | 3.8 °C |
| 5 Dec 2023, 13:27 | 7.9 | 7.9 °C |
| 7 Nov 2023, 10:45 | 10.1 | 10.1 °C |
| 20 Oct 2023, 10:38 | 12.5 | 12.5 °C |
pH
code 0061
7.41
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 7.41 | 7.41 |
| 17 Aug 2026, 12:00 | 7.5 | 7.5 |
| 14 Jul 2026, 13:53 | 7.39 | 7.39 |
| 8 Jun 2026, 13:39 | 7.12 | 7.12 |
| 11 May 2026, 15:04 | 7.66 | 7.66 |
| 23 Apr 2026, 13:32 | 7.66 | 7.66 |
| 27 Mar 2026, 11:50 | 7.46 | 7.46 |
| 6 Feb 2026, 11:18 | 7.5 | 7.5 |
| 6 Jan 2026, 14:17 | 7.44 | 7.44 |
| 9 Dec 2025, 11:50 | 6.97 | 6.97 |
| 11 Nov 2025, 12:10 | 7.1 | 7.1 |
| 6 Oct 2025, 10:55 | 7.62 | 7.62 |
| 4 Sep 2025, 12:48 | 7.29 | 7.29 |
| 4 Aug 2025, 10:55 | 7.52 | 7.52 |
| 29 Jul 2025, 13:43 | 7.59 | 7.59 |
| 26 Jun 2025, 11:23 | 7.57 | 7.57 |
| 19 May 2025, 11:09 | 7.73 | 7.73 |
| 4 Apr 2025, 11:12 | 7.72 | 7.72 |
| 21 Mar 2025, 11:24 | 7.71 | 7.71 |
| 5 Feb 2025, 12:49 | 7.47 | 7.47 |
| 21 Jan 2025, 12:58 | 7.59 | 7.59 |
| 10 Dec 2024, 12:06 | 7.37 | 7.37 |
| 19 Nov 2024, 12:17 | 6.93 | 6.93 |
| 16 Oct 2024, 11:16 | 7.01 | 7.01 |
| 30 Sep 2024, 09:30 | 7.02 | 7.02 |
| 17 Jul 2024, 13:01 | 7.44 | 7.44 |
| 19 Jun 2024, 14:36 | 7.65 | 7.65 |
| 4 Mar 2024, 11:20 | 7.31 | 7.31 |
| 1 Feb 2024, 12:37 | 7.28 | 7.28 |
| 17 Jan 2024, 12:30 | 7.48 | 7.48 |
| 5 Dec 2023, 13:27 | 6.96 | 6.96 |
| 7 Nov 2023, 10:45 | 7.45 | 7.45 |
| 20 Oct 2023, 10:38 | 7.36 | 7.36 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.083 mg/l
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 0.083 | 0.083 mg/l |
| 17 Aug 2026, 12:00 | 0.38 | 0.38 mg/l |
| 14 Jul 2026, 13:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jun 2026, 13:39 | 0.45 | 0.45 mg/l |
| 11 May 2026, 15:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Apr 2026, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2026, 11:50 | 0.095 | 0.095 mg/l |
| 6 Feb 2026, 11:18 | 0.14 | 0.14 mg/l |
| 6 Jan 2026, 14:17 | 0.067 | 0.067 mg/l |
| 9 Dec 2025, 11:50 | 0.11 | 0.11 mg/l |
| 11 Nov 2025, 12:10 | 0.042 | 0.042 mg/l |
| 6 Oct 2025, 10:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 12:48 | 0.056 | 0.056 mg/l |
| 15 Aug 2025, 11:53 | 0.38 | 0.38 mg/l |
| 4 Aug 2025, 10:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jul 2025, 13:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2025, 11:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 May 2025, 11:09 | 0.034 | 0.034 mg/l |
| 4 Apr 2025, 11:12 | 0.036 | 0.036 mg/l |
| 21 Mar 2025, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2025, 12:49 | 0.042 | 0.042 mg/l |
| 21 Jan 2025, 12:58 | 0.032 | 0.032 mg/l |
| 10 Dec 2024, 12:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Nov 2024, 12:17 | 0.11 | 0.11 mg/l |
| 16 Oct 2024, 11:16 | 0.44 | 0.44 mg/l |
| 30 Sep 2024, 09:30 | 0.09 | 0.09 mg/l |
| 17 Jul 2024, 13:01 | 0.05 | 0.05 mg/l |
| 19 Jun 2024, 14:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2024, 11:20 | 0.052 | 0.052 mg/l |
| 17 Jan 2024, 12:30 | 0.071 | 0.071 mg/l |
| 5 Dec 2023, 13:27 | 0.33 | 0.33 mg/l |
| 7 Nov 2023, 10:45 | 0.099 | 0.099 mg/l |
| 20 Oct 2023, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.46 mg/l
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 1.46 | 1.46 mg/l |
| 17 Aug 2026, 12:00 | 0.79 | 0.79 mg/l |
| 14 Jul 2026, 13:53 | 1.19 | 1.19 mg/l |
| 8 Jun 2026, 13:39 | 1.67 | 1.67 mg/l |
| 11 May 2026, 15:04 | 0.986 | 0.986 mg/l |
| 23 Apr 2026, 13:32 | 0.976 | 0.976 mg/l |
| 27 Mar 2026, 11:50 | 1.18 | 1.18 mg/l |
| 6 Feb 2026, 11:18 | 0.991 | 0.991 mg/l |
| 6 Jan 2026, 14:17 | 1.49 | 1.49 mg/l |
| 9 Dec 2025, 11:50 | 0.983 | 0.983 mg/l |
| 11 Nov 2025, 12:10 | 1.59 | 1.59 mg/l |
| 6 Oct 2025, 10:55 | 1.6 | 1.6 mg/l |
| 4 Sep 2025, 12:48 | 1.38 | 1.38 mg/l |
| 15 Aug 2025, 11:53 | 1.29 | 1.29 mg/l |
| 4 Aug 2025, 10:55 | 1.3 | 1.3 mg/l |
| 29 Jul 2025, 13:43 | 1.79 | 1.79 mg/l |
| 26 Jun 2025, 11:23 | 1.39 | 1.39 mg/l |
| 19 May 2025, 11:09 | 1.49 | 1.49 mg/l |
| 4 Apr 2025, 11:12 | 1.09 | 1.09 mg/l |
| 21 Mar 2025, 11:24 | 1.39 | 1.39 mg/l |
| 5 Feb 2025, 12:49 | 1.49 | 1.49 mg/l |
| 21 Jan 2025, 12:58 | 1.49 | 1.49 mg/l |
| 10 Dec 2024, 12:06 | 2 | 2 mg/l |
| 19 Nov 2024, 12:17 | 1.19 | 1.19 mg/l |
| 16 Oct 2024, 11:16 | 0.831 | 0.831 mg/l |
| 30 Sep 2024, 09:30 | 1.09 | 1.09 mg/l |
| 17 Jul 2024, 13:01 | 1.39 | 1.39 mg/l |
| 19 Jun 2024, 14:36 | 1.19 | 1.19 mg/l |
| 4 Mar 2024, 11:20 | 1.79 | 1.79 mg/l |
| 1 Feb 2024, 12:37 | 1.38 | 1.38 mg/l |
| 17 Jan 2024, 12:30 | 1.89 | 1.89 mg/l |
| 5 Dec 2023, 13:27 | 1.38 | 1.38 mg/l |
| 7 Nov 2023, 10:45 | 1.69 | 1.69 mg/l |
| 20 Oct 2023, 10:38 | 1.8 | 1.8 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.16 mg/l
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 0.16 | 0.16 mg/l |
| 17 Aug 2026, 12:00 | 0.13 | 0.13 mg/l |
| 14 Jul 2026, 13:53 | 0.076 | 0.076 mg/l |
| 8 Jun 2026, 13:39 | 0.12 | 0.12 mg/l |
| 11 May 2026, 15:04 | 0.073 | 0.073 mg/l |
| 23 Apr 2026, 13:32 | 0.049 | 0.049 mg/l |
| 27 Mar 2026, 11:50 | 0.046 | 0.046 mg/l |
| 6 Feb 2026, 11:18 | 0.083 | 0.083 mg/l |
| 6 Jan 2026, 14:17 | 0.043 | 0.043 mg/l |
| 9 Dec 2025, 11:50 | 0.13 | 0.13 mg/l |
| 11 Nov 2025, 12:10 | 0.057 | 0.057 mg/l |
| 6 Oct 2025, 10:55 | 0.05 | 0.05 mg/l |
| 4 Sep 2025, 12:48 | 0.12 | 0.12 mg/l |
| 15 Aug 2025, 11:53 | 0.11 | 0.11 mg/l |
| 4 Aug 2025, 10:55 | 0.11 | 0.11 mg/l |
| 29 Jul 2025, 13:43 | 0.11 | 0.11 mg/l |
| 26 Jun 2025, 11:23 | 0.089 | 0.089 mg/l |
| 19 May 2025, 11:09 | 0.074 | 0.074 mg/l |
| 4 Apr 2025, 11:12 | 0.051 | 0.051 mg/l |
| 21 Mar 2025, 11:24 | 0.027 | 0.027 mg/l |
| 5 Feb 2025, 12:49 | 0.043 | 0.043 mg/l |
| 21 Jan 2025, 12:58 | 0.031 | 0.031 mg/l |
| 10 Dec 2024, 12:06 | 0.023 | 0.023 mg/l |
| 19 Nov 2024, 12:17 | 0.13 | 0.13 mg/l |
| 16 Oct 2024, 11:16 | 0.24 | 0.24 mg/l |
| 30 Sep 2024, 09:30 | 0.15 | 0.15 mg/l |
| 17 Jul 2024, 13:01 | 0.075 | 0.075 mg/l |
| 19 Jun 2024, 14:36 | 0.069 | 0.069 mg/l |
| 4 Mar 2024, 11:20 | 0.041 | 0.041 mg/l |
| 1 Feb 2024, 12:37 | 0.063 | 0.063 mg/l |
| 17 Jan 2024, 12:30 | 0.035 | 0.035 mg/l |
| 5 Dec 2023, 13:27 | 0.1 | 0.1 mg/l |
| 7 Nov 2023, 10:45 | 0.065 | 0.065 mg/l |
| 20 Oct 2023, 10:38 | 0.067 | 0.067 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
279 µS/cm
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 10:03 | 279 | 279 µS/cm |
| 17 Aug 2026, 12:00 | 273 | 273 µS/cm |
| 14 Jul 2026, 13:53 | 247 | 247 µS/cm |
| 8 Jun 2026, 13:39 | 181 | 181 µS/cm |
| 11 May 2026, 15:04 | 218 | 218 µS/cm |
| 23 Apr 2026, 13:32 | 200 | 200 µS/cm |
| 27 Mar 2026, 11:50 | 199 | 199 µS/cm |
| 6 Feb 2026, 11:18 | 123 | 123 µS/cm |
| 6 Jan 2026, 14:17 | 215 | 215 µS/cm |
| 9 Dec 2025, 11:50 | 121 | 121 µS/cm |
| 11 Nov 2025, 12:10 | 187 | 187 µS/cm |
| 6 Oct 2025, 10:55 | 202 | 202 µS/cm |
| 4 Sep 2025, 12:48 | 292 | 292 µS/cm |
| 4 Aug 2025, 10:55 | 248 | 248 µS/cm |
| 29 Jul 2025, 13:43 | 265 | 265 µS/cm |
| 26 Jun 2025, 11:23 | 236 | 236 µS/cm |
| 19 May 2025, 11:09 | 221 | 221 µS/cm |
| 4 Apr 2025, 11:12 | 223 | 223 µS/cm |
| 21 Mar 2025, 11:24 | 214 | 214 µS/cm |
| 5 Feb 2025, 12:49 | 201 | 201 µS/cm |
| 21 Jan 2025, 12:58 | 205 | 205 µS/cm |
| 10 Dec 2024, 12:06 | 180 | 180 µS/cm |
| 19 Nov 2024, 12:17 | 146 | 146 µS/cm |
| 16 Oct 2024, 11:16 | 157 | 157 µS/cm |
| 30 Sep 2024, 09:30 | 160 | 160 µS/cm |
| 17 Jul 2024, 13:01 | 205 | 205 µS/cm |
| 19 Jun 2024, 14:36 | 237 | 237 µS/cm |
| 4 Mar 2024, 11:20 | 168 | 168 µS/cm |
| 1 Feb 2024, 12:37 | 194 | 194 µS/cm |
| 17 Jan 2024, 12:30 | 201 | 201 µS/cm |
| 5 Dec 2023, 13:27 | 157 | 157 µS/cm |
| 7 Nov 2023, 10:45 | 160 | 160 µS/cm |
| 20 Oct 2023, 10:38 | 200 | 200 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Sep 2026 | 87.1% 14 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Sep 2026 | 8.5 mg/l 14 Sep 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Sep 2026 | 16.4 °C 14 Sep 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Sep 2026 | 7.41 14 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | 0.083 mg/l 14 Sep 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Sep 2026 | 1.46 mg/l 14 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 34 | Oct 2023 – Sep 2026 | 0.16 mg/l 14 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Sep 2026 | 279 µS/cm 14 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Sep 2026 | 61 mg/l 14 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Sep 2026 | 0.00063 mg/l 14 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1.2 mg/l 11 May 2026 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Sep 2026 | 0.041 mg/l 14 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Sep 2026 | 1.5 mg/l 14 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Aug 2025 – Aug 2025 | 6.4 mg/l 15 Aug 2025 |
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.