Hanwell Brook above Oxford Canal, Hanwell
EA name: HANWELL BROOK ABOVE OXFORD CANAL, HANWEL (also listed as “HANWELL BROOK ABOVE OXFORD CANAL, HANWELL”)
Environment Agency sampling point TH-PCHR0051 · 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
- 10 Aug 2026, 12:3652 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 13 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 445435, 242418As published, to the nearest 1 m. Open in a map
- River, by its own name
- Hanwell Brook
- River, by the map
- Hanwell BrookPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
59%
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 59 | 59% |
| 27 Jul 2026, 11:31 | 68.8 | 68.8% |
| 25 Jun 2026, 11:50 | 72.1 | 72.1% |
| 26 May 2026, 09:32 | 81.7 | 81.7% |
| 20 Apr 2026, 12:13 | 97.1 | 97.1% |
| 3 Mar 2026, 11:55 | 89.9 | 89.9% |
| 6 Feb 2026, 12:12 | 87.9 | 87.9% |
| 8 Jan 2026, 10:50 | 94.6 | 94.6% |
| 15 Dec 2025, 13:05 | 89 | 89% |
| 21 Nov 2025, 10:26 | 91.6 | 91.6% |
| 6 Oct 2025, 10:56 | 64.6 | 64.6% |
| 8 Sep 2025, 12:24 | 62.4 | 62.4% |
| 13 Aug 2025, 10:47 | 68.1 | 68.1% |
| 25 Jul 2025, 10:35 | 78.5 | 78.5% |
| 23 Jun 2025, 09:51 | 71.1 | 71.1% |
| 15 May 2025, 10:03 | 81.5 | 81.5% |
| 30 Apr 2025, 13:38 | 98.8 | 98.8% |
| 5 Mar 2025, 10:30 | 96.8 | 96.8% |
| 12 Feb 2025, 12:02 | 94.1 | 94.1% |
| 20 Jan 2025, 10:50 | 96.9 | 96.9% |
| 9 Dec 2024, 10:36 | 95.7 | 95.7% |
| 22 Nov 2024, 10:38 | 93.2 | 93.2% |
| 10 Oct 2024, 09:25 | 86.7 | 86.7% |
| 4 Sep 2024, 10:50 | 85.6 | 85.6% |
| 1 Aug 2024, 12:23 | 77.6 | 77.6% |
| 1 Jul 2024, 09:29 | 91.8 | 91.8% |
| 6 Jun 2024, 10:33 | 91.6 | 91.6% |
| 1 Mar 2024, 10:23 | 95.4 | 95.4% |
| 7 Feb 2024, 10:03 | 92.2 | 92.2% |
| 9 Jan 2024, 10:14 | 93.7 | 93.7% |
| 5 Dec 2023, 11:03 | 88 | 88% |
| 2 Nov 2023, 12:21 | 83.6 | 83.6% |
| 13 Oct 2023, 13:18 | 82.4 | 82.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.53 mg/l
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 5.53 | 5.53 mg/l |
| 27 Jul 2026, 11:31 | 6.66 | 6.66 mg/l |
| 25 Jun 2026, 11:50 | 6.43 | 6.43 mg/l |
| 26 May 2026, 09:32 | 7.88 | 7.88 mg/l |
| 20 Apr 2026, 12:13 | 11.3 | 11.3 mg/l |
| 3 Mar 2026, 11:55 | 10.3 | 10.3 mg/l |
| 6 Feb 2026, 12:12 | 10.6 | 10.6 mg/l |
| 8 Jan 2026, 10:50 | 12.4 | 12.4 mg/l |
| 15 Dec 2025, 13:05 | 10.3 | 10.3 mg/l |
| 21 Nov 2025, 10:26 | 12.2 | 12.2 mg/l |
| 6 Oct 2025, 10:56 | 7.06 | 7.06 mg/l |
| 8 Sep 2025, 12:24 | 6.26 | 6.26 mg/l |
| 13 Aug 2025, 10:47 | 6.48 | 6.48 mg/l |
| 25 Jul 2025, 10:35 | 7.66 | 7.66 mg/l |
| 23 Jun 2025, 09:51 | 7.01 | 7.01 mg/l |
| 15 May 2025, 10:03 | 8.95 | 8.95 mg/l |
| 30 Apr 2025, 13:38 | 10.3 | 10.3 mg/l |
| 5 Mar 2025, 10:30 | 12.3 | 12.3 mg/l |
| 12 Feb 2025, 12:02 | 11.8 | 11.8 mg/l |
| 20 Jan 2025, 10:50 | 12.4 | 12.4 mg/l |
| 9 Dec 2024, 10:36 | 11.5 | 11.5 mg/l |
| 22 Nov 2024, 10:38 | 11.8 | 11.8 mg/l |
| 10 Oct 2024, 09:25 | 9.43 | 9.43 mg/l |
| 4 Sep 2024, 10:50 | 8.8 | 8.8 mg/l |
| 1 Aug 2024, 12:23 | 7.37 | 7.37 mg/l |
| 1 Jul 2024, 09:29 | 9.58 | 9.58 mg/l |
| 6 Jun 2024, 10:33 | 9.96 | 9.96 mg/l |
| 1 Mar 2024, 10:23 | 11.7 | 11.7 mg/l |
| 7 Feb 2024, 10:03 | 11.1 | 11.1 mg/l |
| 9 Jan 2024, 10:14 | 12.1 | 12.1 mg/l |
| 5 Dec 2023, 11:03 | 10.7 | 10.7 mg/l |
| 2 Nov 2023, 12:21 | 9.29 | 9.29 mg/l |
| 13 Oct 2023, 13:18 | 8.31 | 8.31 mg/l |
Water temperature
code 0076 · °C
18.4 °C
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 18.4 | 18.4 °C |
| 27 Jul 2026, 11:31 | 16.8 | 16.8 °C |
| 25 Jun 2026, 11:50 | 20.9 | 20.9 °C |
| 26 May 2026, 09:32 | 17 | 17 °C |
| 20 Apr 2026, 12:13 | 8.8 | 8.8 °C |
| 3 Mar 2026, 11:55 | 9.2 | 9.2 °C |
| 6 Feb 2026, 12:12 | 7.1 | 7.1 °C |
| 8 Jan 2026, 10:50 | 3.9 | 3.9 °C |
| 15 Dec 2025, 13:05 | 9 | 9 °C |
| 21 Nov 2025, 10:26 | 3.5 | 3.5 °C |
| 6 Oct 2025, 10:56 | 11.3 | 11.3 °C |
| 8 Sep 2025, 12:24 | 15.1 | 15.1 °C |
| 13 Aug 2025, 10:47 | 17.6 | 17.6 °C |
| 25 Jul 2025, 10:35 | 16.4 | 16.4 °C |
| 23 Jun 2025, 09:51 | 15.9 | 15.9 °C |
| 15 May 2025, 10:03 | 11.1 | 11.1 °C |
| 30 Apr 2025, 13:38 | 13.5 | 13.5 °C |
| 5 Mar 2025, 10:30 | 5.1 | 5.1 °C |
| 12 Feb 2025, 12:02 | 5.5 | 5.5 °C |
| 20 Jan 2025, 10:50 | 4.8 | 4.8 °C |
| 9 Dec 2024, 10:36 | 7.3 | 7.3 °C |
| 22 Nov 2024, 10:38 | 5.4 | 5.4 °C |
| 10 Oct 2024, 09:25 | 11.5 | 11.5 °C |
| 4 Sep 2024, 10:50 | 14 | 14 °C |
| 1 Aug 2024, 12:23 | 17.7 | 17.7 °C |
| 1 Jul 2024, 09:29 | 13.3 | 13.3 °C |
| 6 Jun 2024, 10:33 | 11.5 | 11.5 °C |
| 1 Mar 2024, 10:23 | 6.6 | 6.6 °C |
| 7 Feb 2024, 10:03 | 7.2 | 7.2 °C |
| 9 Jan 2024, 10:14 | 4.6 | 4.6 °C |
| 5 Dec 2023, 11:03 | 6.9 | 6.9 °C |
| 2 Nov 2023, 12:21 | 10.6 | 10.6 °C |
| 13 Oct 2023, 13:18 | 14.9 | 14.9 °C |
pH
code 0061
7.72
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 7.72 | 7.72 |
| 27 Jul 2026, 11:31 | 7.81 | 7.81 |
| 25 Jun 2026, 11:50 | 7.85 | 7.85 |
| 26 May 2026, 09:32 | 7.88 | 7.88 |
| 20 Apr 2026, 12:13 | 8.15 | 8.15 |
| 3 Mar 2026, 11:55 | 8.02 | 8.02 |
| 6 Feb 2026, 12:12 | 7.74 | 7.74 |
| 8 Jan 2026, 10:50 | 8.04 | 8.04 |
| 15 Dec 2025, 13:05 | 7.85 | 7.85 |
| 21 Nov 2025, 10:26 | 7.94 | 7.94 |
| 6 Oct 2025, 10:56 | 7.71 | 7.71 |
| 8 Sep 2025, 12:24 | 7.74 | 7.74 |
| 13 Aug 2025, 10:47 | 7.82 | 7.82 |
| 25 Jul 2025, 10:35 | 7.86 | 7.86 |
| 23 Jun 2025, 09:51 | 7.91 | 7.91 |
| 15 May 2025, 10:03 | 7.97 | 7.97 |
| 30 Apr 2025, 13:38 | 8.19 | 8.19 |
| 5 Mar 2025, 10:30 | 7.97 | 7.97 |
| 12 Feb 2025, 12:02 | 8.02 | 8.02 |
| 20 Jan 2025, 10:50 | 8.16 | 8.16 |
| 9 Dec 2024, 10:36 | 7.83 | 7.83 |
| 22 Nov 2024, 10:38 | 7.92 | 7.92 |
| 10 Oct 2024, 09:25 | 7.6 | 7.6 |
| 4 Sep 2024, 10:50 | 7.98 | 7.98 |
| 1 Aug 2024, 12:23 | 7.88 | 7.88 |
| 1 Jul 2024, 09:29 | 8.11 | 8.11 |
| 6 Jun 2024, 10:33 | 7.99 | 7.99 |
| 1 Mar 2024, 10:23 | 7.94 | 7.94 |
| 7 Feb 2024, 10:03 | 7.92 | 7.92 |
| 9 Jan 2024, 10:14 | 7.99 | 7.99 |
| 5 Dec 2023, 11:03 | 7.7 | 7.7 |
| 2 Nov 2023, 12:21 | 7.47 | 7.47 |
| 13 Oct 2023, 13:18 | 7.5 | 7.5 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jul 2026, 11:31 | 0.05 | 0.05 mg/l |
| 25 Jun 2026, 11:50 | 0.055 | 0.055 mg/l |
| 26 May 2026, 09:32 | 0.067 | 0.067 mg/l |
| 20 Apr 2026, 12:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2026, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2026, 12:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2026, 10:50 | 0.045 | 0.045 mg/l |
| 15 Dec 2025, 13:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Nov 2025, 10:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Sep 2025, 12:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Aug 2025, 10:47 | 0.072 | 0.072 mg/l |
| 25 Jul 2025, 10:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jun 2025, 09:51 | 0.051 | 0.051 mg/l |
| 15 May 2025, 10:03 | 0.036 | 0.036 mg/l |
| 30 Apr 2025, 13:38 | 0.035 | 0.035 mg/l |
| 5 Mar 2025, 10:30 | 0.036 | 0.036 mg/l |
| 12 Feb 2025, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jan 2025, 10:50 | 0.056 | 0.056 mg/l |
| 9 Dec 2024, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Nov 2024, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2024, 09:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2024, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2024, 12:23 | 0.034 | 0.034 mg/l |
| 1 Jul 2024, 09:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2024, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Mar 2024, 10:23 | 0.036 | 0.036 mg/l |
| 7 Feb 2024, 10:03 | 0.091 | 0.091 mg/l |
| 9 Jan 2024, 10:14 | 0.037 | 0.037 mg/l |
| 5 Dec 2023, 11:03 | 0.044 | 0.044 mg/l |
| 2 Nov 2023, 12:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Oct 2023, 13:18 | 0.042 | 0.042 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.58 mg/l
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 1.58 | 1.58 mg/l |
| 27 Jul 2026, 11:31 | 3.49 | 3.49 mg/l |
| 25 Jun 2026, 11:50 | 2.78 | 2.78 mg/l |
| 26 May 2026, 09:32 | 5.06 | 5.06 mg/l |
| 20 Apr 2026, 12:13 | 6.39 | 6.39 mg/l |
| 3 Mar 2026, 11:55 | 8.58 | 8.58 mg/l |
| 6 Feb 2026, 12:12 | 8.39 | 8.39 mg/l |
| 8 Jan 2026, 10:50 | 7.88 | 7.88 mg/l |
| 15 Dec 2025, 13:05 | 9.98 | 9.98 mg/l |
| 21 Nov 2025, 10:26 | 6.49 | 6.49 mg/l |
| 6 Oct 2025, 10:56 | 4.08 | 4.08 mg/l |
| 8 Sep 2025, 12:24 | 3.29 | 3.29 mg/l |
| 13 Aug 2025, 10:47 | 4.17 | 4.17 mg/l |
| 25 Jul 2025, 10:35 | 4.19 | 4.19 mg/l |
| 23 Jun 2025, 09:51 | 4.38 | 4.38 mg/l |
| 15 May 2025, 10:03 | 6.07 | 6.07 mg/l |
| 30 Apr 2025, 13:38 | 5.68 | 5.68 mg/l |
| 5 Mar 2025, 10:30 | 7.38 | 7.38 mg/l |
| 12 Feb 2025, 12:02 | 7.69 | 7.69 mg/l |
| 20 Jan 2025, 10:50 | 8.07 | 8.07 mg/l |
| 9 Dec 2024, 10:36 | 6.88 | 6.88 mg/l |
| 22 Nov 2024, 10:38 | 6.89 | 6.89 mg/l |
| 10 Oct 2024, 09:25 | 6.49 | 6.49 mg/l |
| 4 Sep 2024, 10:50 | 4.89 | 4.89 mg/l |
| 1 Aug 2024, 12:23 | 5.79 | 5.79 mg/l |
| 1 Jul 2024, 09:29 | 6.79 | 6.79 mg/l |
| 6 Jun 2024, 10:33 | 6.29 | 6.29 mg/l |
| 1 Mar 2024, 10:23 | 7.38 | 7.38 mg/l |
| 7 Feb 2024, 10:03 | 7.58 | 7.58 mg/l |
| 9 Jan 2024, 10:14 | 8.98 | 8.98 mg/l |
| 5 Dec 2023, 11:03 | 7.68 | 7.68 mg/l |
| 2 Nov 2023, 12:21 | 7.18 | 7.18 mg/l |
| 13 Oct 2023, 13:18 | 8.48 | 8.48 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.12 mg/l
Sampled 10 Aug 2026, 52 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 0.12 | 0.12 mg/l |
| 27 Jul 2026, 11:31 | 0.2 | 0.2 mg/l |
| 25 Jun 2026, 11:50 | 0.23 | 0.23 mg/l |
| 26 May 2026, 09:32 | 0.26 | 0.26 mg/l |
| 20 Apr 2026, 12:13 | 0.14 | 0.14 mg/l |
| 3 Mar 2026, 11:55 | 0.073 | 0.073 mg/l |
| 6 Feb 2026, 12:12 | 0.076 | 0.076 mg/l |
| 8 Jan 2026, 10:50 | 0.13 | 0.13 mg/l |
| 15 Dec 2025, 13:05 | 0.1 | 0.1 mg/l |
| 21 Nov 2025, 10:26 | 0.13 | 0.13 mg/l |
| 6 Oct 2025, 10:56 | 0.53 | 0.53 mg/l |
| 8 Sep 2025, 12:24 | 0.32 | 0.32 mg/l |
| 13 Aug 2025, 10:47 | 0.3 | 0.3 mg/l |
| 25 Jul 2025, 10:35 | 0.38 | 0.38 mg/l |
| 23 Jun 2025, 09:51 | 0.32 | 0.32 mg/l |
| 15 May 2025, 10:03 | 0.24 | 0.24 mg/l |
| 30 Apr 2025, 13:38 | 0.14 | 0.14 mg/l |
| 5 Mar 2025, 10:30 | 0.06 | 0.06 mg/l |
| 12 Feb 2025, 12:02 | 0.06 | 0.06 mg/l |
| 20 Jan 2025, 10:50 | 0.073 | 0.073 mg/l |
| 9 Dec 2024, 10:36 | 0.071 | 0.071 mg/l |
| 22 Nov 2024, 10:38 | 0.065 | 0.065 mg/l |
| 10 Oct 2024, 09:25 | 0.068 | 0.068 mg/l |
| 4 Sep 2024, 10:50 | 0.29 | 0.29 mg/l |
| 1 Aug 2024, 12:23 | 0.24 | 0.24 mg/l |
| 1 Jul 2024, 09:29 | 0.18 | 0.18 mg/l |
| 6 Jun 2024, 10:33 | 0.12 | 0.12 mg/l |
| 1 Mar 2024, 10:23 | 0.057 | 0.057 mg/l |
| 9 Jan 2024, 10:14 | 0.058 | 0.058 mg/l |
| 5 Dec 2023, 11:03 | 0.059 | 0.059 mg/l |
| 2 Nov 2023, 12:21 | 0.076 | 0.076 mg/l |
| 13 Oct 2023, 13:18 | 0.12 | 0.12 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
637 µS/cm
Sampled 10 Aug 2026, 52 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 12:36 | 637 | 637 µS/cm |
| 27 Jul 2026, 11:31 | 741 | 741 µS/cm |
| 25 Jun 2026, 11:50 | 707 | 707 µS/cm |
| 26 May 2026, 09:32 | 706 | 706 µS/cm |
| 20 Apr 2026, 12:13 | 663 | 663 µS/cm |
| 3 Mar 2026, 11:55 | 571 | 571 µS/cm |
| 6 Feb 2026, 12:12 | 423 | 423 µS/cm |
| 8 Jan 2026, 10:50 | 1094 | 1094 µS/cm |
| 15 Dec 2025, 13:05 | 598 | 598 µS/cm |
| 21 Nov 2025, 10:26 | 686 | 686 µS/cm |
| 6 Oct 2025, 10:56 | 782 | 782 µS/cm |
| 8 Sep 2025, 12:24 | 793 | 793 µS/cm |
| 13 Aug 2025, 10:47 | 759 | 759 µS/cm |
| 25 Jul 2025, 10:35 | 786 | 786 µS/cm |
| 23 Jun 2025, 09:51 | 751 | 751 µS/cm |
| 15 May 2025, 10:03 | 671 | 671 µS/cm |
| 30 Apr 2025, 13:38 | 659 | 659 µS/cm |
| 5 Mar 2025, 10:30 | 627 | 627 µS/cm |
| 12 Feb 2025, 12:02 | 599 | 599 µS/cm |
| 20 Jan 2025, 10:50 | 634 | 634 µS/cm |
| 9 Dec 2024, 10:36 | 486 | 486 µS/cm |
| 22 Nov 2024, 10:38 | 589 | 589 µS/cm |
| 10 Oct 2024, 09:25 | 475 | 475 µS/cm |
| 4 Sep 2024, 10:50 | 698 | 698 µS/cm |
| 1 Aug 2024, 12:23 | 682 | 682 µS/cm |
| 1 Jul 2024, 09:29 | 673 | 673 µS/cm |
| 6 Jun 2024, 10:33 | 648 | 648 µS/cm |
| 1 Mar 2024, 10:23 | 607 | 607 µS/cm |
| 7 Feb 2024, 10:03 | 541 | 541 µS/cm |
| 9 Jan 2024, 10:14 | 608 | 608 µS/cm |
| 5 Dec 2023, 11:03 | 544 | 544 µS/cm |
| 2 Nov 2023, 12:21 | 378 | 378 µS/cm |
| 13 Oct 2023, 13:18 | 416 | 416 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 – Aug 2026 | 59% 10 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Aug 2026 | 5.53 mg/l 10 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Aug 2026 | 18.4 °C 10 Aug 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Aug 2026 | 7.72 10 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Aug 2026 | below 0.03 mg/l 10 Aug 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Aug 2026 | 1.58 mg/l 10 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Aug 2026 | 0.12 mg/l 10 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Aug 2026 | 637 µS/cm 10 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Aug 2026 | 200 mg/l 10 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Aug 2026 | below 0.00054 mg/l 10 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 32 | Oct 2023 – Aug 2026 | 1.2 mg/l 10 Aug 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Aug 2026 | 0.019 mg/l 10 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Aug 2026 | 1.6 mg/l 10 Aug 2026 |
| Phosphorus, Total as P 0348 | River water | 14 | Apr 2025 – Aug 2026 | 0.13 mg/l 10 Aug 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.