Langford Brook above (Oxon) Ray, Merton
EA name: LANGFORD BROOK ABOVE ( OXON ) RAY, MERTO (also listed as “LANGFORD BROOK ABOVE ( OXON ) RAY, MERTON”)
Environment Agency sampling point TH-PCHR0030 · 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
- 4 Aug 2026, 09:2458 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 5 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 456668, 216919As published, to the nearest 1 m. Open in a map
- River, by its own name
- Langford Brook
- River, by the map
- Not placedIts name gives Langford Brook; the only line close by, 10 m away, is Gagle Brook and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Environmental monitoring statutory (EU directives) (34 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
64.9%
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 64.9 | 64.9% |
| 13 Jul 2026, 10:02 | 63.7 | 63.7% |
| 26 Jun 2026, 09:54 | 62 | 62% |
| 20 May 2026, 13:04 | 81.5 | 81.5% |
| 10 Apr 2026, 11:08 | 91.1 | 91.1% |
| 6 Mar 2026, 11:10 | 85 | 85% |
| 2 Feb 2026, 11:50 | 81.6 | 81.6% |
| 6 Jan 2026, 13:16 | 89.3 | 89.3% |
| 3 Dec 2025, 13:07 | 75.8 | 75.8% |
| 5 Nov 2025, 11:09 | 59.8 | 59.8% |
| 1 Oct 2025, 12:49 | 65.8 | 65.8% |
| 8 Sep 2025, 10:46 | 59.8 | 59.8% |
| 22 Aug 2025, 10:59 | 76.4 | 76.4% |
| 29 Jul 2025, 11:42 | 74.2 | 74.2% |
| 4 Jun 2025, 09:45 | 76.2 | 76.2% |
| 6 May 2025, 11:39 | 99.9 | 99.9% |
| 11 Apr 2025, 12:45 | 106.3 | 106.3% |
| 13 Mar 2025, 09:56 | 91.7 | 91.7% |
| 10 Feb 2025, 12:53 | 92.4 | 92.4% |
| 27 Jan 2025, 11:36 | 87.6 | 87.6% |
| 2 Dec 2024, 12:45 | 84.7 | 84.7% |
| 5 Nov 2024, 11:31 | 73.2 | 73.2% |
| 11 Oct 2024, 09:26 | 57.1 | 57.1% |
| 11 Sep 2024, 10:55 | 73.7 | 73.7% |
| 14 Aug 2024, 10:09 | 78.3 | 78.3% |
| 29 Jul 2024, 12:17 | 86.7 | 86.7% |
| 24 Jun 2024, 10:20 | 75.7 | 75.7% |
| 7 Mar 2024, 12:17 | 93 | 93% |
| 7 Feb 2024, 12:03 | 82.5 | 82.5% |
| 11 Jan 2024, 08:45 | 83.6 | 83.6% |
| 4 Dec 2023, 09:01 | 81.8 | 81.8% |
| 16 Nov 2023, 11:55 | 73.7 | 73.7% |
| 26 Oct 2023, 12:03 | 65.4 | 65.4% |
| 5 Oct 2023, 09:27 | 53.1 | 53.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.93 mg/l
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 5.93 | 5.93 mg/l |
| 13 Jul 2026, 10:02 | 5.88 | 5.88 mg/l |
| 26 Jun 2026, 09:54 | 5.31 | 5.31 mg/l |
| 20 May 2026, 13:04 | 8.21 | 8.21 mg/l |
| 10 Apr 2026, 11:08 | 10.1 | 10.1 mg/l |
| 6 Mar 2026, 11:10 | 9.79 | 9.79 mg/l |
| 2 Feb 2026, 11:50 | 9.67 | 9.67 mg/l |
| 6 Jan 2026, 13:16 | 11.9 | 11.9 mg/l |
| 3 Dec 2025, 13:07 | 8.92 | 8.92 mg/l |
| 5 Nov 2025, 11:09 | 6.12 | 6.12 mg/l |
| 1 Oct 2025, 12:49 | 6.68 | 6.68 mg/l |
| 8 Sep 2025, 10:46 | 5.7 | 5.7 mg/l |
| 22 Aug 2025, 10:59 | 7.55 | 7.55 mg/l |
| 29 Jul 2025, 11:42 | 7.04 | 7.04 mg/l |
| 4 Jun 2025, 09:45 | 7.73 | 7.73 mg/l |
| 6 May 2025, 11:39 | 10.9 | 10.9 mg/l |
| 11 Apr 2025, 12:45 | 11.1 | 11.1 mg/l |
| 13 Mar 2025, 09:56 | 11.3 | 11.3 mg/l |
| 10 Feb 2025, 12:53 | 11.5 | 11.5 mg/l |
| 27 Jan 2025, 11:36 | 10.9 | 10.9 mg/l |
| 2 Dec 2024, 12:45 | 9.57 | 9.57 mg/l |
| 5 Nov 2024, 11:31 | 7.89 | 7.89 mg/l |
| 11 Oct 2024, 09:26 | 6.62 | 6.62 mg/l |
| 11 Sep 2024, 10:55 | 7.54 | 7.54 mg/l |
| 14 Aug 2024, 10:09 | 7.23 | 7.23 mg/l |
| 29 Jul 2024, 12:17 | 8.05 | 8.05 mg/l |
| 24 Jun 2024, 10:20 | 7.18 | 7.18 mg/l |
| 7 Mar 2024, 12:17 | 10.9 | 10.9 mg/l |
| 7 Feb 2024, 12:03 | 9.73 | 9.73 mg/l |
| 11 Jan 2024, 08:45 | 10.6 | 10.6 mg/l |
| 4 Dec 2023, 09:01 | 9.72 | 9.72 mg/l |
| 16 Nov 2023, 11:55 | 8.57 | 8.57 mg/l |
| 26 Oct 2023, 12:03 | 7 | 7 mg/l |
| 5 Oct 2023, 09:27 | 5.33 | 5.33 mg/l |
Water temperature
code 0076 · °C
19.6 °C
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 19.6 | 19.6 °C |
| 13 Jul 2026, 10:02 | 19.1 | 19.1 °C |
| 26 Jun 2026, 09:54 | 23 | 23 °C |
| 20 May 2026, 13:04 | 14.9 | 14.9 °C |
| 10 Apr 2026, 11:08 | 10.8 | 10.8 °C |
| 6 Mar 2026, 11:10 | 9.1 | 9.1 °C |
| 2 Feb 2026, 11:50 | 7.9 | 7.9 °C |
| 6 Jan 2026, 13:16 | 3.4 | 3.4 °C |
| 3 Dec 2025, 13:07 | 8.2 | 8.2 °C |
| 5 Nov 2025, 11:09 | 14.2 | 14.2 °C |
| 1 Oct 2025, 12:49 | 14.6 | 14.6 °C |
| 8 Sep 2025, 10:46 | 17.5 | 17.5 °C |
| 22 Aug 2025, 10:59 | 15.8 | 15.8 °C |
| 29 Jul 2025, 11:42 | 17.8 | 17.8 °C |
| 4 Jun 2025, 09:45 | 14.6 | 14.6 °C |
| 6 May 2025, 11:39 | 11.5 | 11.5 °C |
| 11 Apr 2025, 12:45 | 13.2 | 13.2 °C |
| 13 Mar 2025, 09:56 | 6.4 | 6.4 °C |
| 10 Feb 2025, 12:53 | 6 | 6 °C |
| 27 Jan 2025, 11:36 | 5.9 | 5.9 °C |
| 2 Dec 2024, 12:45 | 9.9 | 9.9 °C |
| 5 Nov 2024, 11:31 | 11.9 | 11.9 °C |
| 11 Oct 2024, 09:26 | 8.8 | 8.8 °C |
| 11 Sep 2024, 10:55 | 14.2 | 14.2 °C |
| 14 Aug 2024, 10:09 | 19.1 | 19.1 °C |
| 29 Jul 2024, 12:17 | 18.8 | 18.8 °C |
| 24 Jun 2024, 10:20 | 17.8 | 17.8 °C |
| 7 Mar 2024, 12:17 | 8.3 | 8.3 °C |
| 7 Feb 2024, 12:03 | 8.1 | 8.1 °C |
| 11 Jan 2024, 08:45 | 5.1 | 5.1 °C |
| 4 Dec 2023, 09:01 | 7.8 | 7.8 °C |
| 16 Nov 2023, 11:55 | 8.7 | 8.7 °C |
| 26 Oct 2023, 12:03 | 12.2 | 12.2 °C |
| 5 Oct 2023, 09:27 | 15.1 | 15.1 °C |
pH
code 0061
7.31
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 7.31 | 7.31 |
| 13 Jul 2026, 10:02 | 7.53 | 7.53 |
| 26 Jun 2026, 09:54 | 7.45 | 7.45 |
| 20 May 2026, 13:04 | 7.56 | 7.56 |
| 10 Apr 2026, 11:08 | 7.94 | 7.94 |
| 6 Mar 2026, 11:10 | 8.26 | 8.26 |
| 2 Feb 2026, 11:50 | 7.82 | 7.82 |
| 6 Jan 2026, 13:16 | 8.21 | 8.21 |
| 3 Dec 2025, 13:07 | 7.96 | 7.96 |
| 5 Nov 2025, 11:09 | 7.57 | 7.57 |
| 1 Oct 2025, 12:49 | 7.45 | 7.45 |
| 8 Sep 2025, 10:46 | 7.49 | 7.49 |
| 22 Aug 2025, 10:59 | 7.45 | 7.45 |
| 29 Jul 2025, 11:42 | 7.45 | 7.45 |
| 4 Jun 2025, 09:45 | 7.78 | 7.78 |
| 6 May 2025, 11:39 | 8.04 | 8.04 |
| 11 Apr 2025, 12:45 | 8.02 | 8.02 |
| 13 Mar 2025, 09:56 | 7.93 | 7.93 |
| 10 Feb 2025, 12:53 | 7.87 | 7.87 |
| 27 Jan 2025, 11:36 | 7.81 | 7.81 |
| 2 Dec 2024, 12:45 | 7.86 | 7.86 |
| 5 Nov 2024, 11:31 | 7.81 | 7.81 |
| 11 Oct 2024, 09:26 | 7.53 | 7.53 |
| 11 Sep 2024, 10:55 | 7.5 | 7.5 |
| 14 Aug 2024, 10:09 | 7.65 | 7.65 |
| 29 Jul 2024, 12:17 | 7.77 | 7.77 |
| 24 Jun 2024, 10:20 | 7.63 | 7.63 |
| 7 Mar 2024, 12:17 | 8.09 | 8.09 |
| 7 Feb 2024, 12:03 | 7.7 | 7.7 |
| 11 Jan 2024, 08:45 | 7.92 | 7.92 |
| 4 Dec 2023, 09:01 | 7.77 | 7.77 |
| 16 Nov 2023, 11:55 | 7.82 | 7.82 |
| 26 Oct 2023, 12:03 | 7.72 | 7.72 |
| 5 Oct 2023, 09:27 | 7.43 | 7.43 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.041 mg/l
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 0.041 | 0.041 mg/l |
| 13 Jul 2026, 10:02 | 0.049 | 0.049 mg/l |
| 26 Jun 2026, 09:54 | 0.072 | 0.072 mg/l |
| 20 May 2026, 13:04 | 0.075 | 0.075 mg/l |
| 10 Apr 2026, 11:08 | 0.033 | 0.033 mg/l |
| 6 Mar 2026, 11:10 | 0.039 | 0.039 mg/l |
| 2 Feb 2026, 11:50 | 0.14 | 0.14 mg/l |
| 6 Jan 2026, 13:16 | 0.055 | 0.055 mg/l |
| 3 Dec 2025, 13:07 | 0.038 | 0.038 mg/l |
| 5 Nov 2025, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Oct 2025, 12:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Sep 2025, 10:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2025, 10:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jul 2025, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2025, 09:45 | 0.068 | 0.068 mg/l |
| 6 May 2025, 11:39 | 0.09 | 0.09 mg/l |
| 11 Apr 2025, 12:45 | 0.086 | 0.086 mg/l |
| 13 Mar 2025, 09:56 | 0.085 | 0.085 mg/l |
| 10 Feb 2025, 12:53 | 0.077 | 0.077 mg/l |
| 27 Jan 2025, 11:36 | 0.23 | 0.23 mg/l |
| 2 Dec 2024, 12:45 | 0.041 | 0.041 mg/l |
| 5 Nov 2024, 11:31 | 0.037 | 0.037 mg/l |
| 11 Oct 2024, 09:26 | 0.044 | 0.044 mg/l |
| 11 Sep 2024, 10:55 | 0.053 | 0.053 mg/l |
| 14 Aug 2024, 10:09 | 0.062 | 0.062 mg/l |
| 29 Jul 2024, 12:17 | 0.083 | 0.083 mg/l |
| 24 Jun 2024, 10:20 | 0.09 | 0.09 mg/l |
| 7 Mar 2024, 12:17 | 0.068 | 0.068 mg/l |
| 7 Feb 2024, 12:03 | 0.29 | 0.29 mg/l |
| 11 Jan 2024, 08:45 | 0.079 | 0.079 mg/l |
| 4 Dec 2023, 09:01 | 0.063 | 0.063 mg/l |
| 16 Nov 2023, 11:55 | 0.036 | 0.036 mg/l |
| 26 Oct 2023, 12:03 | 0.044 | 0.044 mg/l |
| 5 Oct 2023, 09:27 | 0.048 | 0.048 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
22.9 mg/l
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 22.9 | 22.9 mg/l |
| 13 Jul 2026, 10:02 | 19.9 | 19.9 mg/l |
| 26 Jun 2026, 09:54 | 15.8 | 15.8 mg/l |
| 20 May 2026, 13:04 | 21.9 | 21.9 mg/l |
| 10 Apr 2026, 11:08 | 16.9 | 16.9 mg/l |
| 6 Mar 2026, 11:10 | 10.9 | 10.9 mg/l |
| 2 Feb 2026, 11:50 | 9.9 | 9.9 mg/l |
| 6 Jan 2026, 13:16 | 14.9 | 14.9 mg/l |
| 3 Dec 2025, 13:07 | 12.9 | 12.9 mg/l |
| 5 Nov 2025, 11:09 | 18 | 18 mg/l |
| 1 Oct 2025, 12:49 | 22 | 22 mg/l |
| 8 Sep 2025, 10:46 | 14 | 14 mg/l |
| 22 Aug 2025, 10:59 | 25 | 25 mg/l |
| 29 Jul 2025, 11:42 | 22.9 | 22.9 mg/l |
| 4 Jun 2025, 09:45 | 15.9 | 15.9 mg/l |
| 6 May 2025, 11:39 | 20.9 | 20.9 mg/l |
| 11 Apr 2025, 12:45 | 17.9 | 17.9 mg/l |
| 13 Mar 2025, 09:56 | 11.9 | 11.9 mg/l |
| 10 Feb 2025, 12:53 | 8.66 | 8.66 mg/l |
| 27 Jan 2025, 11:36 | 5.06 | 5.06 mg/l |
| 2 Dec 2024, 12:45 | 7.76 | 7.76 mg/l |
| 5 Nov 2024, 11:31 | 9.26 | 9.26 mg/l |
| 11 Oct 2024, 09:26 | 5.21 | 5.21 mg/l |
| 11 Sep 2024, 10:55 | 16.9 | 16.9 mg/l |
| 14 Aug 2024, 10:09 | 23.9 | 23.9 mg/l |
| 29 Jul 2024, 12:17 | 20.9 | 20.9 mg/l |
| 24 Jun 2024, 10:20 | 18.9 | 18.9 mg/l |
| 7 Mar 2024, 12:17 | 9.97 | 9.97 mg/l |
| 7 Feb 2024, 12:03 | 6.46 | 6.46 mg/l |
| 11 Jan 2024, 08:45 | 11 | 11 mg/l |
| 4 Dec 2023, 09:01 | 9.35 | 9.35 mg/l |
| 16 Nov 2023, 11:55 | 8.36 | 8.36 mg/l |
| 26 Oct 2023, 12:03 | 8.25 | 8.25 mg/l |
| 5 Oct 2023, 09:27 | 14.9 | 14.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
1.4 mg/l
Sampled 4 Aug 2026, 58 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 1.4 | 1.4 mg/l |
| 13 Jul 2026, 10:02 | 1.3 | 1.3 mg/l |
| 26 Jun 2026, 09:54 | 1.2 | 1.2 mg/l |
| 20 May 2026, 13:04 | 0.84 | 0.84 mg/l |
| 10 Apr 2026, 11:08 | 0.63 | 0.63 mg/l |
| 6 Mar 2026, 11:10 | 0.24 | 0.24 mg/l |
| 2 Feb 2026, 11:50 | 0.14 | 0.14 mg/l |
| 6 Jan 2026, 13:16 | 0.36 | 0.36 mg/l |
| 3 Dec 2025, 13:07 | 0.25 | 0.25 mg/l |
| 5 Nov 2025, 11:09 | 0.89 | 0.89 mg/l |
| 1 Oct 2025, 12:49 | 1.1 | 1.1 mg/l |
| 8 Sep 2025, 10:46 | 0.88 | 0.88 mg/l |
| 22 Aug 2025, 10:59 | 1.4 | 1.4 mg/l |
| 29 Jul 2025, 11:42 | 1.2 | 1.2 mg/l |
| 4 Jun 2025, 09:45 | 0.52 | 0.52 mg/l |
| 6 May 2025, 11:39 | 0.75 | 0.75 mg/l |
| 11 Apr 2025, 12:45 | 0.54 | 0.54 mg/l |
| 13 Mar 2025, 09:56 | 0.24 | 0.24 mg/l |
| 10 Feb 2025, 12:53 | 0.18 | 0.18 mg/l |
| 27 Jan 2025, 11:36 | 0.15 | 0.15 mg/l |
| 2 Dec 2024, 12:45 | 0.093 | 0.093 mg/l |
| 5 Nov 2024, 11:31 | 0.41 | 0.41 mg/l |
| 11 Oct 2024, 09:26 | 0.061 | 0.061 mg/l |
| 11 Sep 2024, 10:55 | 0.85 | 0.85 mg/l |
| 14 Aug 2024, 10:09 | 0.51 | 0.51 mg/l |
| 29 Jul 2024, 12:17 | 1.1 | 1.1 mg/l |
| 24 Jun 2024, 10:20 | 1 | 1 mg/l |
| 7 Mar 2024, 12:17 | 0.23 | 0.23 mg/l |
| 11 Jan 2024, 08:45 | 0.12 | 0.12 mg/l |
| 4 Dec 2023, 09:01 | 0.29 | 0.29 mg/l |
| 16 Nov 2023, 11:55 | 0.11 | 0.11 mg/l |
| 26 Oct 2023, 12:03 | 0.16 | 0.16 mg/l |
| 5 Oct 2023, 09:27 | 0.32 | 0.32 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1043 µS/cm
Sampled 4 Aug 2026, 58 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Aug 2026, 09:24 | 1043 | 1043 µS/cm |
| 13 Jul 2026, 10:02 | 1060 | 1060 µS/cm |
| 26 Jun 2026, 09:54 | 916 | 916 µS/cm |
| 20 May 2026, 13:04 | 899 | 899 µS/cm |
| 10 Apr 2026, 11:08 | 854 | 854 µS/cm |
| 6 Mar 2026, 11:10 | 735 | 735 µS/cm |
| 2 Feb 2026, 11:50 | 681 | 681 µS/cm |
| 6 Jan 2026, 13:16 | 800 | 800 µS/cm |
| 3 Dec 2025, 13:07 | 754 | 754 µS/cm |
| 5 Nov 2025, 11:09 | 931 | 931 µS/cm |
| 1 Oct 2025, 12:49 | 1027 | 1027 µS/cm |
| 8 Sep 2025, 10:46 | 927 | 927 µS/cm |
| 22 Aug 2025, 10:59 | 1086 | 1086 µS/cm |
| 29 Jul 2025, 11:42 | 1041 | 1041 µS/cm |
| 4 Jun 2025, 09:45 | 892 | 892 µS/cm |
| 6 May 2025, 11:39 | 943 | 943 µS/cm |
| 11 Apr 2025, 12:45 | 869 | 869 µS/cm |
| 13 Mar 2025, 09:56 | 806 | 806 µS/cm |
| 10 Feb 2025, 12:53 | 739 | 739 µS/cm |
| 27 Jan 2025, 11:36 | 538 | 538 µS/cm |
| 2 Dec 2024, 12:45 | 719 | 719 µS/cm |
| 5 Nov 2024, 11:31 | 778 | 778 µS/cm |
| 11 Oct 2024, 09:26 | 641 | 641 µS/cm |
| 11 Sep 2024, 10:55 | 906 | 906 µS/cm |
| 14 Aug 2024, 10:09 | 1007 | 1007 µS/cm |
| 29 Jul 2024, 12:17 | 933 | 933 µS/cm |
| 24 Jun 2024, 10:20 | 933 | 933 µS/cm |
| 7 Mar 2024, 12:17 | 773 | 773 µS/cm |
| 7 Feb 2024, 12:03 | 566 | 566 µS/cm |
| 11 Jan 2024, 08:45 | 787 | 787 µS/cm |
| 4 Dec 2023, 09:01 | 818 | 818 µS/cm |
| 16 Nov 2023, 11:55 | 748 | 748 µS/cm |
| 26 Oct 2023, 12:03 | 793 | 793 µS/cm |
| 5 Oct 2023, 09:27 | 905 | 905 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Aug 2026 | 64.9% 4 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Aug 2026 | 5.93 mg/l 4 Aug 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Aug 2026 | 19.6 °C 4 Aug 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Aug 2026 | 7.31 4 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 34 | Oct 2023 – Aug 2026 | 0.041 mg/l 4 Aug 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Aug 2026 | 22.9 mg/l 4 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Aug 2026 | 1.4 mg/l 4 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Aug 2026 | 1043 µS/cm 4 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 34 | Oct 2023 – Aug 2026 | 150 mg/l 4 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 34 | Oct 2023 – Aug 2026 | 0.00032 mg/l 4 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 32 | Oct 2023 – Aug 2026 | below 4 mg/l 4 Aug 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Nov 2023 – Mar 2024 | 130 mg/l 7 Mar 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Nov 2023 – Mar 2024 | 3.5 mg/l 7 Mar 2024 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Nov 2023 – Mar 2024 | 0.01 µg/l 7 Mar 2024 |
| Lead, Dissolved 0052 | River water | 2 | Nov 2023 – Mar 2024 | below 0.1 µg/l 7 Mar 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Nov 2023 – Mar 2024 | 0.48 µg/l 7 Mar 2024 |
| Nickel, Dissolved 3410 | River water | 2 | Nov 2023 – Mar 2024 | 0.95 µg/l 7 Mar 2024 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Aug 2026 | 0.071 mg/l 4 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Aug 2026 | 23 mg/l 4 Aug 2026 |
| Phosphorus, Total as P 0348 | River water | 14 | Apr 2025 – Aug 2026 | 1.6 mg/l 4 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.