Clay Hill Brook above Burghfield sewage treatment works
EA name: CLAY HILL BROOK ABOVE BURGHFIELD STW
Environment Agency sampling point TH-PKER0098 · 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
- 17 Jul 2026, 11:402 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 38 since 2 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 465656, 168314As published, to the nearest 1 m. Open in a map
- River, by its own name
- Clay Hill Brook
- River, by the map
- Clayhill BrookPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Blakes Lock On the River Kennet · 11 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Environmental monitoring statutory (EU directives) (32 samples)
Monitoring (national agency policy) (6 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.4%
Sampled 12 May 2026, 5 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 96.4 | 96.4% |
| 13 Apr 2026, 11:54 | 97 | 97% |
| 17 Mar 2026, 09:13 | 95.7 | 95.7% |
| 18 Feb 2026, 10:48 | 96.7 | 96.7% |
| 16 Jan 2026, 10:16 | 97.2 | 97.2% |
| 2 Dec 2025, 13:32 | 93 | 93% |
| 17 Nov 2025, 11:47 | 86 | 86% |
| 8 Oct 2025, 12:42 | 89.7 | 89.7% |
| 11 Sep 2025, 13:10 | 89 | 89% |
| 7 Aug 2025, 09:52 | 88.8 | 88.8% |
| 17 Jul 2025, 12:10 | 82.5 | 82.5% |
| 17 Jun 2025, 10:24 | 91.7 | 91.7% |
| 29 May 2025, 11:34 | 89 | 89% |
| 1 Apr 2025, 09:42 | 98.5 | 98.5% |
| 5 Mar 2025, 13:06 | 99.5 | 99.5% |
| 12 Feb 2025, 13:20 | 100.2 | 100.2% |
| 28 Jan 2025, 10:28 | 100.8 | 100.8% |
| 13 Dec 2024, 13:25 | 96.4 | 96.4% |
| 22 Nov 2024, 11:42 | 95.8 | 95.8% |
| 14 Oct 2024, 11:10 | 96 | 96% |
| 23 Sep 2024, 12:59 | 92.7 | 92.7% |
| 6 Sep 2024, 09:28 | 100.5 | 100.5% |
| 23 Aug 2024, 11:26 | 91 | 91% |
| 2 Aug 2024, 12:03 | 87.6 | 87.6% |
| 16 Jul 2024, 12:40 | 92.7 | 92.7% |
| 2 Jul 2024, 11:11 | 96.7 | 96.7% |
| 17 Jun 2024, 10:28 | 94.8 | 94.8% |
| 6 Jun 2024, 13:20 | 97.5 | 97.5% |
| 12 Mar 2024, 10:31 | 98.3 | 98.3% |
| 1 Feb 2024, 10:32 | 95.8 | 95.8% |
| 10 Jan 2024, 12:10 | 97.7 | 97.7% |
| 4 Dec 2023, 09:35 | 94.2 | 94.2% |
| 17 Nov 2023, 10:56 | 95.9 | 95.9% |
| 31 Oct 2023, 11:29 | 94.6 | 94.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 12 May 2026, 5 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 11 | 11 mg/l |
| 13 Apr 2026, 11:54 | 11.3 | 11.3 mg/l |
| 17 Mar 2026, 09:13 | 11.1 | 11.1 mg/l |
| 18 Feb 2026, 10:48 | 12.1 | 12.1 mg/l |
| 16 Jan 2026, 10:16 | 12.1 | 12.1 mg/l |
| 2 Dec 2025, 13:32 | 10.7 | 10.7 mg/l |
| 17 Nov 2025, 11:47 | 10.1 | 10.1 mg/l |
| 8 Oct 2025, 12:42 | 9.43 | 9.43 mg/l |
| 11 Sep 2025, 13:10 | 9.05 | 9.05 mg/l |
| 7 Aug 2025, 09:52 | 8.93 | 8.93 mg/l |
| 17 Jul 2025, 12:10 | 7.79 | 7.79 mg/l |
| 17 Jun 2025, 10:24 | 9.03 | 9.03 mg/l |
| 29 May 2025, 11:34 | 8.99 | 8.99 mg/l |
| 1 Apr 2025, 09:42 | 11.6 | 11.6 mg/l |
| 5 Mar 2025, 13:06 | 12.4 | 12.4 mg/l |
| 12 Feb 2025, 13:20 | 12.4 | 12.4 mg/l |
| 28 Jan 2025, 10:28 | 12.2 | 12.2 mg/l |
| 13 Dec 2024, 13:25 | 11.5 | 11.5 mg/l |
| 22 Nov 2024, 11:42 | 11.9 | 11.9 mg/l |
| 14 Oct 2024, 11:10 | 10.6 | 10.6 mg/l |
| 23 Sep 2024, 12:59 | 9.2 | 9.2 mg/l |
| 6 Sep 2024, 09:28 | 9.81 | 9.81 mg/l |
| 23 Aug 2024, 11:26 | 8.96 | 8.96 mg/l |
| 2 Aug 2024, 12:03 | 8.2 | 8.2 mg/l |
| 16 Jul 2024, 12:40 | 9.32 | 9.32 mg/l |
| 2 Jul 2024, 11:11 | 9.9 | 9.9 mg/l |
| 17 Jun 2024, 10:28 | 10 | 10 mg/l |
| 6 Jun 2024, 13:20 | 10.3 | 10.3 mg/l |
| 12 Mar 2024, 10:31 | 11.4 | 11.4 mg/l |
| 1 Feb 2024, 10:32 | 11.7 | 11.7 mg/l |
| 10 Jan 2024, 12:10 | 12.6 | 12.6 mg/l |
| 4 Dec 2023, 09:35 | 11.2 | 11.2 mg/l |
| 17 Nov 2023, 10:56 | 11.1 | 11.1 mg/l |
| 31 Oct 2023, 11:29 | 10.4 | 10.4 mg/l |
Water temperature
code 0076 · °C
9.6 °C
Sampled 12 May 2026, 5 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 9.6 | 9.6 °C |
| 13 Apr 2026, 11:54 | 8.6 | 8.6 °C |
| 17 Mar 2026, 09:13 | 8.9 | 8.9 °C |
| 18 Feb 2026, 10:48 | 5.8 | 5.8 °C |
| 16 Jan 2026, 10:16 | 6.1 | 6.1 °C |
| 2 Dec 2025, 13:32 | 9.2 | 9.2 °C |
| 17 Nov 2025, 11:47 | 8.3 | 8.3 °C |
| 8 Oct 2025, 12:42 | 13 | 13 °C |
| 11 Sep 2025, 13:10 | 14.5 | 14.5 °C |
| 7 Aug 2025, 09:52 | 15 | 15 °C |
| 17 Jul 2025, 12:10 | 18 | 18 °C |
| 17 Jun 2025, 10:24 | 16 | 16 °C |
| 29 May 2025, 11:34 | 14.8 | 14.8 °C |
| 1 Apr 2025, 09:42 | 8 | 8 °C |
| 5 Mar 2025, 13:06 | 5.9 | 5.9 °C |
| 12 Feb 2025, 13:20 | 6.1 | 6.1 °C |
| 28 Jan 2025, 10:28 | 7 | 7 °C |
| 13 Dec 2024, 13:25 | 7.7 | 7.7 °C |
| 22 Nov 2024, 11:42 | 6 | 6 °C |
| 14 Oct 2024, 11:10 | 10.8 | 10.8 °C |
| 23 Sep 2024, 12:59 | 15.6 | 15.6 °C |
| 6 Sep 2024, 09:28 | 16.4 | 16.4 °C |
| 23 Aug 2024, 11:26 | 16 | 16 °C |
| 2 Aug 2024, 12:03 | 18.4 | 18.4 °C |
| 16 Jul 2024, 12:40 | 15 | 15 °C |
| 2 Jul 2024, 11:11 | 14.2 | 14.2 °C |
| 17 Jun 2024, 10:28 | 12.8 | 12.8 °C |
| 6 Jun 2024, 13:20 | 12.7 | 12.7 °C |
| 12 Mar 2024, 10:31 | 8.8 | 8.8 °C |
| 1 Feb 2024, 10:32 | 6.6 | 6.6 °C |
| 10 Jan 2024, 12:10 | 4.5 | 4.5 °C |
| 4 Dec 2023, 09:35 | 7.7 | 7.7 °C |
| 17 Nov 2023, 10:56 | 8.8 | 8.8 °C |
| 31 Oct 2023, 11:29 | 11.2 | 11.2 °C |
pH
code 0061
7.58
Sampled 12 May 2026, 5 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 7.58 | 7.58 |
| 13 Apr 2026, 11:54 | 7.91 | 7.91 |
| 17 Mar 2026, 09:13 | 7.75 | 7.75 |
| 18 Feb 2026, 10:48 | 7.71 | 7.71 |
| 16 Jan 2026, 10:16 | 7.42 | 7.42 |
| 2 Dec 2025, 13:32 | 7.62 | 7.62 |
| 17 Nov 2025, 11:47 | 7.52 | 7.52 |
| 8 Oct 2025, 12:42 | 7.79 | 7.79 |
| 11 Sep 2025, 13:10 | 7.81 | 7.81 |
| 7 Aug 2025, 09:52 | 8.02 | 8.02 |
| 17 Jul 2025, 12:10 | 7.93 | 7.93 |
| 17 Jun 2025, 10:24 | 7.83 | 7.83 |
| 29 May 2025, 11:34 | 7.93 | 7.93 |
| 1 Apr 2025, 09:42 | 7.89 | 7.89 |
| 5 Mar 2025, 13:06 | 7.85 | 7.85 |
| 12 Feb 2025, 13:20 | 7.64 | 7.64 |
| 28 Jan 2025, 10:28 | 7.63 | 7.63 |
| 13 Dec 2024, 13:25 | 7.69 | 7.69 |
| 22 Nov 2024, 11:42 | 7.62 | 7.62 |
| 14 Oct 2024, 11:10 | 6.72 | 6.72 |
| 23 Sep 2024, 12:59 | 7.37 | 7.37 |
| 6 Sep 2024, 09:28 | 7.24 | 7.24 |
| 23 Aug 2024, 11:26 | 8.06 | 8.06 |
| 2 Aug 2024, 12:03 | 7.79 | 7.79 |
| 16 Jul 2024, 12:40 | 7.83 | 7.83 |
| 2 Jul 2024, 11:11 | 8.01 | 8.01 |
| 17 Jun 2024, 10:28 | 7.93 | 7.93 |
| 6 Jun 2024, 13:20 | 7.93 | 7.93 |
| 12 Mar 2024, 10:31 | 7.55 | 7.55 |
| 1 Feb 2024, 10:32 | 7.83 | 7.83 |
| 10 Jan 2024, 12:10 | 7.79 | 7.79 |
| 4 Dec 2023, 09:35 | 7.57 | 7.57 |
| 17 Nov 2023, 10:56 | 7.68 | 7.68 |
| 31 Oct 2023, 11:29 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.03 mg/l
Sampled 12 May 2026, 5 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 0.03 | 0.03 mg/l |
| 13 Apr 2026, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2026, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Feb 2026, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jan 2026, 10:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Dec 2025, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2025, 11:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 12:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Sep 2025, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 09:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 12:10 | 0.031 | 0.031 mg/l |
| 17 Jun 2025, 10:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2025, 11:34 | 0.033 | 0.033 mg/l |
| 5 Mar 2025, 13:06 | 0.041 | 0.041 mg/l |
| 12 Feb 2025, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2025, 10:28 | 0.035 | 0.035 mg/l |
| 13 Dec 2024, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Nov 2024, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Oct 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Sep 2024, 12:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Sep 2024, 09:28 | 0.39 | 0.39 mg/l |
| 23 Aug 2024, 11:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Aug 2024, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2024, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 10:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2024, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2024, 10:31 | 0.043 | 0.043 mg/l |
| 1 Feb 2024, 10:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jan 2024, 12:10 | 0.035 | 0.035 mg/l |
| 4 Dec 2023, 09:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2023, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Oct 2023, 11:29 | 0.035 | 0.035 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.854 mg/l
Sampled 12 May 2026, 5 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 0.854 | 0.854 mg/l |
| 13 Apr 2026, 11:54 | 0.945 | 0.945 mg/l |
| 17 Mar 2026, 09:13 | 1.2 | 1.2 mg/l |
| 18 Feb 2026, 10:48 | 2 | 2 mg/l |
| 16 Jan 2026, 10:16 | 3.8 | 3.8 mg/l |
| 2 Dec 2025, 13:32 | 5.49 | 5.49 mg/l |
| 17 Nov 2025, 11:47 | 2.98 | 2.98 mg/l |
| 8 Oct 2025, 12:42 | 0.296 | 0.296 mg/l |
| 11 Sep 2025, 13:10 | 1.1 | 1.1 mg/l |
| 7 Aug 2025, 09:52 | 0.376 | 0.376 mg/l |
| 17 Jul 2025, 12:10 | 0.462 | 0.462 mg/l |
| 17 Jun 2025, 10:24 | 0.558 | 0.558 mg/l |
| 29 May 2025, 11:34 | 0.826 | 0.826 mg/l |
| 5 Mar 2025, 13:06 | 1.48 | 1.48 mg/l |
| 12 Feb 2025, 13:20 | 1.39 | 1.39 mg/l |
| 28 Jan 2025, 10:28 | 1.49 | 1.49 mg/l |
| 13 Dec 2024, 13:25 | 1.29 | 1.29 mg/l |
| 22 Nov 2024, 11:42 | 1.2 | 1.2 mg/l |
| 14 Oct 2024, 11:10 | 1.39 | 1.39 mg/l |
| 23 Sep 2024, 12:59 | 5.79 | 5.79 mg/l |
| 6 Sep 2024, 09:28 | 0.487 | 0.487 mg/l |
| 23 Aug 2024, 11:26 | 0.426 | 0.426 mg/l |
| 2 Aug 2024, 12:03 | 0.981 | 0.981 mg/l |
| 16 Jul 2024, 12:40 | 3.58 | 3.58 mg/l |
| 2 Jul 2024, 11:11 | 0.675 | 0.675 mg/l |
| 17 Jun 2024, 10:28 | 0.895 | 0.895 mg/l |
| 6 Jun 2024, 13:20 | 1.09 | 1.09 mg/l |
| 12 Mar 2024, 10:31 | 0.615 | 0.615 mg/l |
| 1 Feb 2024, 10:32 | 1.09 | 1.09 mg/l |
| 10 Jan 2024, 12:10 | 1.29 | 1.29 mg/l |
| 4 Dec 2023, 09:35 | 1.28 | 1.28 mg/l |
| 17 Nov 2023, 10:56 | 0.996 | 0.996 mg/l |
| 31 Oct 2023, 11:29 | 1.69 | 1.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.071 mg/l
Sampled 12 May 2026, 5 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 0.071 | 0.071 mg/l |
| 13 Apr 2026, 11:54 | 0.051 | 0.051 mg/l |
| 17 Mar 2026, 09:13 | 0.058 | 0.058 mg/l |
| 18 Feb 2026, 10:48 | 0.063 | 0.063 mg/l |
| 16 Jan 2026, 10:16 | 0.11 | 0.11 mg/l |
| 2 Dec 2025, 13:32 | 0.05 | 0.05 mg/l |
| 17 Nov 2025, 11:47 | 0.04 | 0.04 mg/l |
| 8 Oct 2025, 12:42 | 0.093 | 0.093 mg/l |
| 11 Sep 2025, 13:10 | 0.074 | 0.074 mg/l |
| 7 Aug 2025, 09:52 | 0.15 | 0.15 mg/l |
| 17 Jul 2025, 12:10 | 0.19 | 0.19 mg/l |
| 17 Jun 2025, 10:24 | 0.2 | 0.2 mg/l |
| 29 May 2025, 11:34 | 0.1 | 0.1 mg/l |
| 5 Mar 2025, 13:06 | 0.05 | 0.05 mg/l |
| 12 Feb 2025, 13:20 | 0.07 | 0.07 mg/l |
| 28 Jan 2025, 10:28 | 0.13 | 0.13 mg/l |
| 13 Dec 2024, 13:25 | 0.066 | 0.066 mg/l |
| 22 Nov 2024, 11:42 | 0.11 | 0.11 mg/l |
| 14 Oct 2024, 11:10 | 0.17 | 0.17 mg/l |
| 23 Sep 2024, 12:59 | 0.12 | 0.12 mg/l |
| 6 Sep 2024, 09:28 | 0.023 | 0.023 mg/l |
| 23 Aug 2024, 11:26 | 0.13 | 0.13 mg/l |
| 2 Aug 2024, 12:03 | 0.12 | 0.12 mg/l |
| 16 Jul 2024, 12:40 | 0.061 | 0.061 mg/l |
| 2 Jul 2024, 11:11 | 0.13 | 0.13 mg/l |
| 17 Jun 2024, 10:28 | 0.086 | 0.086 mg/l |
| 6 Jun 2024, 13:20 | 0.08 | 0.08 mg/l |
| 12 Mar 2024, 10:31 | 0.071 | 0.071 mg/l |
| 1 Feb 2024, 10:32 | 0.064 | 0.064 mg/l |
| 10 Jan 2024, 12:10 | 0.061 | 0.061 mg/l |
| 4 Dec 2023, 09:35 | 0.12 | 0.12 mg/l |
| 17 Nov 2023, 10:56 | 0.095 | 0.095 mg/l |
| 31 Oct 2023, 11:29 | 0.1 | 0.1 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
392 µS/cm
Sampled 12 May 2026, 5 months ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 11:34 | 392 | 392 µS/cm |
| 13 Apr 2026, 11:54 | 346 | 346 µS/cm |
| 17 Mar 2026, 09:13 | 317 | 317 µS/cm |
| 18 Feb 2026, 10:48 | 284 | 284 µS/cm |
| 16 Jan 2026, 10:16 | 302 | 302 µS/cm |
| 2 Dec 2025, 13:32 | 397 | 397 µS/cm |
| 17 Nov 2025, 11:47 | 393 | 393 µS/cm |
| 8 Oct 2025, 12:42 | 462 | 462 µS/cm |
| 11 Sep 2025, 13:10 | 402 | 402 µS/cm |
| 7 Aug 2025, 09:52 | 494 | 494 µS/cm |
| 17 Jul 2025, 12:10 | 508 | 508 µS/cm |
| 17 Jun 2025, 10:24 | 465 | 465 µS/cm |
| 29 May 2025, 11:34 | 428 | 428 µS/cm |
| 1 Apr 2025, 09:42 | 375 | 375 µS/cm |
| 5 Mar 2025, 13:06 | 306 | 306 µS/cm |
| 12 Feb 2025, 13:20 | 338 | 338 µS/cm |
| 28 Jan 2025, 10:28 | 284 | 284 µS/cm |
| 13 Dec 2024, 13:25 | 309 | 309 µS/cm |
| 22 Nov 2024, 11:42 | 329 | 329 µS/cm |
| 14 Oct 2024, 11:10 | 309 | 309 µS/cm |
| 23 Sep 2024, 12:59 | 342 | 342 µS/cm |
| 6 Sep 2024, 09:28 | 53 | 53 µS/cm |
| 23 Aug 2024, 11:26 | 492 | 492 µS/cm |
| 2 Aug 2024, 12:03 | 391 | 391 µS/cm |
| 16 Jul 2024, 12:40 | 418 | 418 µS/cm |
| 2 Jul 2024, 11:11 | 435 | 435 µS/cm |
| 17 Jun 2024, 10:28 | 392 | 392 µS/cm |
| 6 Jun 2024, 13:20 | 375 | 375 µS/cm |
| 12 Mar 2024, 10:31 | 227 | 227 µS/cm |
| 1 Feb 2024, 10:32 | 334 | 334 µS/cm |
| 10 Jan 2024, 12:10 | 286 | 286 µS/cm |
| 4 Dec 2023, 09:35 | 305 | 305 µS/cm |
| 17 Nov 2023, 10:56 | 330 | 330 µS/cm |
| 31 Oct 2023, 11:29 | 334 | 334 µS/cm |
Everything measured here
61 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 61 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – May 2026 | 96.4% 12 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – May 2026 | 11 mg/l 12 May 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – May 2026 | 9.6 °C 12 May 2026 |
| pH 0061 | River water | 34 | Oct 2023 – May 2026 | 7.58 12 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – May 2026 | 0.03 mg/l 12 May 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – May 2026 | 0.854 mg/l 12 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – May 2026 | 0.071 mg/l 12 May 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – May 2026 | 392 µS/cm 12 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Feb 2024 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Oct 2023 – Sep 2024 | below 0.004 µg/l 23 Sep 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Feb 2024 – Sep 2024 | below 0.005 µg/l 23 Sep 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – May 2026 | 130 mg/l 12 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – May 2026 | 0.0002 mg/l 12 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 30 | Oct 2023 – May 2026 | 14 mg/l 12 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – May 2026 | 0.0065 mg/l 12 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – May 2026 | 0.86 mg/l 12 May 2026 |
| No flow /No sample 7668 | River water | 2 | Jun 2026 – Jul 2026 | No flow/discharge at sampling point 17 Jul 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Oct 2023 – Sep 2024 | 0.0062 µg/l 23 Sep 2024 |
| Perfluorobutanoic acid 2995 | River water | 3 | Oct 2023 – Sep 2024 | 0.0066 µg/l 23 Sep 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Oct 2023 – Sep 2024 | 0.0023 µg/l 23 Sep 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| Perfluorodecanoic acid 8892 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Oct 2023 – Sep 2024 | below 0.005 µg/l 23 Sep 2024 |
| Perfluorododecanoic acid 8894 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoroheptanoic acid 8889 | River water | 3 | Oct 2023 – Sep 2024 | 0.0064 µg/l 23 Sep 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Oct 2023 – Sep 2024 | 0.00057 µg/l 23 Sep 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Oct 2023 – Sep 2024 | 0.0023 µg/l 23 Sep 2024 |
| Perfluorohexanoic acid 8888 | River water | 3 | Oct 2023 – Sep 2024 | 0.017 µg/l 23 Sep 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluorononanoic acid 8891 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Oct 2023 – Sep 2024 | below 0.001 µg/l 23 Sep 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Oct 2023 – Sep 2024 | 0.0019 µg/l 23 Sep 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Oct 2023 – Sep 2024 | 0.0016 µg/l 23 Sep 2024 |
| Perfluorooctanoic acid 8890 | River water | 3 | Oct 2023 – Sep 2024 | 0.013 µg/l 23 Sep 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Oct 2023 – Sep 2024 | below 0.0005 µg/l 23 Sep 2024 |
| Perfluoropentanoic acid 8887 | River water | 3 | Oct 2023 – Sep 2024 | 0.011 µg/l 23 Sep 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Feb 2024 – Sep 2024 | below 0.006 µg/l 23 Sep 2024 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Oct 2023 – Sep 2024 | below 0.005 µg/l 23 Sep 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Oct 2023 – Sep 2024 | below 0.004 µg/l 23 Sep 2024 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Oct 2023 – Sep 2024 | below 0.002 µg/l 23 Sep 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.