Hogsmill above Hogsmill sewage treatment works
EA name: HOGSMILL ABOVE HOGSMILL STW
Environment Agency sampling point TH-PHMR0009 · 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
- 3 Sep 2026, 11:1528 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 24 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 519547, 168514As published, to the nearest 1 m. Open in a map
- River, by its own name
- Hogsmill
- River, by the map
- Hogsmill RiverPlaced on the river its name gives, 26 m from the line.
- Next gauge downstream
- Kingston Hogsmill On the Hogsmill River · 1.5 km along the river
- Nearest gauge upstream
- Worcester Road On the Hogsmill River · 3.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.8%
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 91.8 | 91.8% |
| 19 Aug 2026, 10:47 | 62.5 | 62.5% |
| 4 Aug 2026, 11:22 | 91.5 | 91.5% |
| 13 Jul 2026, 10:56 | 76 | 76% |
| 9 Jul 2026, 10:46 | 112.2 | 112.2% |
| 15 Jun 2026, 11:02 | 75.8 | 75.8% |
| 3 Jun 2026, 12:29 | 82.4 | 82.4% |
| 18 May 2026, 11:24 | 96.5 | 96.5% |
| 11 May 2026, 10:55 | 88.9 | 88.9% |
| 24 Apr 2026, 09:54 | 89.1 | 89.1% |
| 14 Apr 2026, 11:39 | 96.8 | 96.8% |
| 20 Jan 2026, 12:30 | 90 | 90% |
| 16 Jan 2026, 10:38 | 92.7 | 92.7% |
| 16 Dec 2025, 11:17 | 74.7 | 74.7% |
| 2 Dec 2025, 10:46 | 75.1 | 75.1% |
| 17 Nov 2025, 13:05 | 73 | 73% |
| 13 Nov 2025, 13:50 | 67.1 | 67.1% |
| 26 Mar 2025, 12:33 | 130.4 | 130.4% |
| 13 Feb 2025, 12:19 | 96.8 | 96.8% |
| 22 Jan 2025, 11:31 | 92.6 | 92.6% |
| 3 Dec 2024, 11:45 | 91.3 | 91.3% |
| 19 Nov 2024, 10:55 | 93.2 | 93.2% |
| 21 Oct 2024, 11:17 | 86.1 | 86.1% |
| 25 Sep 2024, 10:33 | 89.9 | 89.9% |
| 22 Aug 2024, 10:21 | 74.4 | 74.4% |
| 18 Jul 2024, 10:34 | 83.1 | 83.1% |
| 27 Jun 2024, 12:57 | 88.2 | 88.2% |
| 28 May 2024, 12:14 | 86.8 | 86.8% |
| 19 Apr 2024, 12:08 | 98.7 | 98.7% |
| 18 Mar 2024, 09:03 | 96.3 | 96.3% |
| 29 Feb 2024, 10:39 | 97.6 | 97.6% |
| 15 Jan 2024, 10:39 | 92.6 | 92.6% |
| 14 Dec 2023, 15:31 | 92.4 | 92.4% |
| 28 Nov 2023, 11:40 | 94.7 | 94.7% |
| 24 Oct 2023, 10:52 | 91.2 | 91.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.58 mg/l
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 8.58 | 8.58 mg/l |
| 19 Aug 2026, 10:47 | 5.77 | 5.77 mg/l |
| 4 Aug 2026, 11:22 | 8.19 | 8.19 mg/l |
| 13 Jul 2026, 10:56 | 6.95 | 6.95 mg/l |
| 9 Jul 2026, 10:46 | 9.71 | 9.71 mg/l |
| 15 Jun 2026, 11:02 | 7.46 | 7.46 mg/l |
| 3 Jun 2026, 12:29 | 8.16 | 8.16 mg/l |
| 18 May 2026, 11:24 | 10.2 | 10.2 mg/l |
| 11 May 2026, 10:55 | 8.66 | 8.66 mg/l |
| 24 Apr 2026, 09:54 | 9.69 | 9.69 mg/l |
| 14 Apr 2026, 11:39 | 10.7 | 10.7 mg/l |
| 20 Jan 2026, 12:30 | 10.4 | 10.4 mg/l |
| 16 Jan 2026, 10:38 | 11.2 | 11.2 mg/l |
| 16 Dec 2025, 11:17 | 8.28 | 8.28 mg/l |
| 2 Dec 2025, 10:46 | 8.48 | 8.48 mg/l |
| 17 Nov 2025, 13:05 | 8.2 | 8.2 mg/l |
| 13 Nov 2025, 13:50 | 6.88 | 6.88 mg/l |
| 26 Mar 2025, 12:33 | 13.7 | 13.7 mg/l |
| 13 Feb 2025, 12:19 | 11.6 | 11.6 mg/l |
| 22 Jan 2025, 11:31 | 11.2 | 11.2 mg/l |
| 3 Dec 2024, 11:45 | 10.4 | 10.4 mg/l |
| 19 Nov 2024, 10:55 | 10.9 | 10.9 mg/l |
| 21 Oct 2024, 11:17 | 8.93 | 8.93 mg/l |
| 25 Sep 2024, 10:33 | 8.45 | 8.45 mg/l |
| 22 Aug 2024, 10:21 | 7.32 | 7.32 mg/l |
| 18 Jul 2024, 10:34 | 8.06 | 8.06 mg/l |
| 27 Jun 2024, 12:57 | 8.26 | 8.26 mg/l |
| 28 May 2024, 12:14 | 8.86 | 8.86 mg/l |
| 19 Apr 2024, 12:08 | 10.7 | 10.7 mg/l |
| 18 Mar 2024, 09:03 | 10.7 | 10.7 mg/l |
| 29 Feb 2024, 10:39 | 10.9 | 10.9 mg/l |
| 15 Jan 2024, 10:39 | 11.9 | 11.9 mg/l |
| 14 Dec 2023, 15:31 | 10.7 | 10.7 mg/l |
| 28 Nov 2023, 11:40 | 11 | 11 mg/l |
| 24 Oct 2023, 10:52 | 9.63 | 9.63 mg/l |
Water temperature
code 0076 · °C
18.5 °C
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 18.5 | 18.5 °C |
| 19 Aug 2026, 10:47 | 19.1 | 19.1 °C |
| 4 Aug 2026, 11:22 | 20.7 | 20.7 °C |
| 13 Jul 2026, 10:56 | 19.6 | 19.6 °C |
| 9 Jul 2026, 10:46 | 22.4 | 22.4 °C |
| 15 Jun 2026, 11:02 | 16 | 16 °C |
| 3 Jun 2026, 12:29 | 15.7 | 15.7 °C |
| 18 May 2026, 11:24 | 12.9 | 12.9 °C |
| 11 May 2026, 10:55 | 16.5 | 16.5 °C |
| 24 Apr 2026, 09:54 | 11.5 | 11.5 °C |
| 14 Apr 2026, 11:39 | 11 | 11 °C |
| 20 Jan 2026, 12:30 | 9 | 9 °C |
| 16 Jan 2026, 10:38 | 7.3 | 7.3 °C |
| 16 Dec 2025, 11:17 | 10.7 | 10.7 °C |
| 2 Dec 2025, 10:46 | 9.9 | 9.9 °C |
| 17 Nov 2025, 13:05 | 10.1 | 10.1 °C |
| 13 Nov 2025, 13:50 | 14.1 | 14.1 °C |
| 26 Mar 2025, 12:33 | 13 | 13 °C |
| 13 Feb 2025, 12:19 | 7.3 | 7.3 °C |
| 22 Jan 2025, 11:31 | 7.1 | 7.1 °C |
| 3 Dec 2024, 11:45 | 9.5 | 9.5 °C |
| 19 Nov 2024, 10:55 | 8.6 | 8.6 °C |
| 21 Oct 2024, 11:17 | 13.6 | 13.6 °C |
| 25 Sep 2024, 10:33 | 18.2 | 18.2 °C |
| 22 Aug 2024, 10:21 | 16 | 16 °C |
| 18 Jul 2024, 10:34 | 16.7 | 16.7 °C |
| 27 Jun 2024, 12:57 | 18.4 | 18.4 °C |
| 28 May 2024, 12:14 | 14.3 | 14.3 °C |
| 19 Apr 2024, 12:08 | 11.8 | 11.8 °C |
| 18 Mar 2024, 09:03 | 10.6 | 10.6 °C |
| 29 Feb 2024, 10:39 | 10.4 | 10.4 °C |
| 15 Jan 2024, 10:39 | 4.8 | 4.8 °C |
| 14 Dec 2023, 15:31 | 8.7 | 8.7 °C |
| 28 Nov 2023, 11:40 | 8.7 | 8.7 °C |
| 24 Oct 2023, 10:52 | 12.8 | 12.8 °C |
pH
code 0061
7.72
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 7.72 | 7.72 |
| 19 Aug 2026, 10:47 | 7.92 | 7.92 |
| 4 Aug 2026, 11:22 | 8.06 | 8.06 |
| 13 Jul 2026, 10:56 | 8.01 | 8.01 |
| 9 Jul 2026, 10:46 | 8.21 | 8.21 |
| 15 Jun 2026, 11:02 | 8.2 | 8.2 |
| 3 Jun 2026, 12:29 | 7.68 | 7.68 |
| 18 May 2026, 11:24 | 8.08 | 8.08 |
| 11 May 2026, 10:55 | 7.5 | 7.5 |
| 24 Apr 2026, 09:54 | 8.23 | 8.23 |
| 14 Apr 2026, 11:39 | 8.05 | 8.05 |
| 20 Jan 2026, 12:30 | 8 | 8 |
| 16 Jan 2026, 10:38 | 7.97 | 7.97 |
| 16 Dec 2025, 11:17 | 7.91 | 7.91 |
| 2 Dec 2025, 10:46 | 7.66 | 7.66 |
| 17 Nov 2025, 13:05 | 7.82 | 7.82 |
| 13 Nov 2025, 13:50 | 7.67 | 7.67 |
| 26 Mar 2025, 12:33 | 8.37 | 8.37 |
| 13 Feb 2025, 12:19 | 8.17 | 8.17 |
| 22 Jan 2025, 11:31 | 8.15 | 8.15 |
| 3 Dec 2024, 11:45 | 8.02 | 8.02 |
| 19 Nov 2024, 10:55 | 7.88 | 7.88 |
| 21 Oct 2024, 11:17 | 7.94 | 7.94 |
| 25 Sep 2024, 10:33 | 7.44 | 7.44 |
| 22 Aug 2024, 10:21 | 7.87 | 7.87 |
| 18 Jul 2024, 10:34 | 7.95 | 7.95 |
| 27 Jun 2024, 12:57 | 8.18 | 8.18 |
| 28 May 2024, 12:14 | 8.38 | 8.38 |
| 19 Apr 2024, 12:08 | 8.07 | 8.07 |
| 18 Mar 2024, 09:03 | 8.05 | 8.05 |
| 29 Feb 2024, 10:39 | 8.31 | 8.31 |
| 15 Jan 2024, 10:39 | 7.97 | 7.97 |
| 14 Dec 2023, 15:31 | 7.93 | 7.93 |
| 28 Nov 2023, 11:40 | 7.84 | 7.84 |
| 24 Oct 2023, 10:52 | 7.92 | 7.92 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.066 mg/l
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 0.066 | 0.066 mg/l |
| 19 Aug 2026, 10:47 | 0.33 | 0.33 mg/l |
| 4 Aug 2026, 11:22 | 0.07 | 0.07 mg/l |
| 13 Jul 2026, 10:56 | 0.065 | 0.065 mg/l |
| 9 Jul 2026, 10:46 | 0.055 | 0.055 mg/l |
| 15 Jun 2026, 11:02 | 0.12 | 0.12 mg/l |
| 3 Jun 2026, 12:29 | 0.14 | 0.14 mg/l |
| 18 May 2026, 11:24 | 0.097 | 0.097 mg/l |
| 11 May 2026, 10:55 | 0.093 | 0.093 mg/l |
| 24 Apr 2026, 09:54 | 0.093 | 0.093 mg/l |
| 14 Apr 2026, 11:39 | 0.22 | 0.22 mg/l |
| 20 Jan 2026, 12:30 | 0.13 | 0.13 mg/l |
| 16 Jan 2026, 10:38 | 0.079 | 0.079 mg/l |
| 16 Dec 2025, 11:17 | 0.2 | 0.2 mg/l |
| 2 Dec 2025, 10:46 | 0.21 | 0.21 mg/l |
| 17 Nov 2025, 13:05 | 0.18 | 0.18 mg/l |
| 13 Nov 2025, 13:50 | 0.27 | 0.27 mg/l |
| 26 Mar 2025, 12:33 | 0.058 | 0.058 mg/l |
| 13 Feb 2025, 12:19 | 0.1 | 0.1 mg/l |
| 22 Jan 2025, 11:31 | 0.13 | 0.13 mg/l |
| 3 Dec 2024, 11:45 | 0.11 | 0.11 mg/l |
| 19 Nov 2024, 10:55 | 0.19 | 0.19 mg/l |
| 21 Oct 2024, 11:17 | 0.048 | 0.048 mg/l |
| 25 Sep 2024, 10:33 | 0.038 | 0.038 mg/l |
| 22 Aug 2024, 10:21 | 0.15 | 0.15 mg/l |
| 18 Jul 2024, 10:34 | 0.11 | 0.11 mg/l |
| 27 Jun 2024, 12:57 | 0.097 | 0.097 mg/l |
| 28 May 2024, 12:14 | 0.11 | 0.11 mg/l |
| 19 Apr 2024, 12:08 | 0.077 | 0.077 mg/l |
| 18 Mar 2024, 09:03 | 0.062 | 0.062 mg/l |
| 29 Feb 2024, 10:39 | 0.078 | 0.078 mg/l |
| 15 Jan 2024, 10:39 | 0.19 | 0.19 mg/l |
| 14 Dec 2023, 15:31 | 0.1 | 0.1 mg/l |
| 28 Nov 2023, 11:40 | 0.097 | 0.097 mg/l |
| 24 Oct 2023, 10:52 | 0.077 | 0.077 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.54 mg/l
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 1.54 | 1.54 mg/l |
| 19 Aug 2026, 10:47 | 1.51 | 1.51 mg/l |
| 4 Aug 2026, 11:22 | 1.95 | 1.95 mg/l |
| 13 Jul 2026, 10:56 | 2.84 | 2.84 mg/l |
| 9 Jul 2026, 10:46 | 3 | 3 mg/l |
| 15 Jun 2026, 11:02 | 4.18 | 4.18 mg/l |
| 3 Jun 2026, 12:29 | 2.92 | 2.92 mg/l |
| 18 May 2026, 11:24 | 4.8 | 4.8 mg/l |
| 11 May 2026, 10:55 | 21.9 | 21.9 mg/l |
| 24 Apr 2026, 09:54 | 5.12 | 5.12 mg/l |
| 14 Apr 2026, 11:39 | 4.94 | 4.94 mg/l |
| 20 Jan 2026, 12:30 | 4.66 | 4.66 mg/l |
| 16 Jan 2026, 10:38 | 3.88 | 3.88 mg/l |
| 16 Dec 2025, 11:17 | 4.09 | 4.09 mg/l |
| 2 Dec 2025, 10:46 | 2.51 | 2.51 mg/l |
| 17 Nov 2025, 13:05 | 3.07 | 3.07 mg/l |
| 13 Nov 2025, 13:50 | 2.66 | 2.66 mg/l |
| 26 Mar 2025, 12:33 | 5.55 | 5.55 mg/l |
| 13 Feb 2025, 12:19 | 5.16 | 5.16 mg/l |
| 22 Jan 2025, 11:31 | 5.63 | 5.63 mg/l |
| 3 Dec 2024, 11:45 | 4.36 | 4.36 mg/l |
| 19 Nov 2024, 10:55 | 2.07 | 2.07 mg/l |
| 21 Oct 2024, 11:17 | 3.65 | 3.65 mg/l |
| 25 Sep 2024, 10:33 | 13 | 13 mg/l |
| 22 Aug 2024, 10:21 | 3.99 | 3.99 mg/l |
| 18 Jul 2024, 10:34 | 4.34 | 4.34 mg/l |
| 27 Jun 2024, 12:57 | 4.89 | 4.89 mg/l |
| 28 May 2024, 12:14 | 3.94 | 3.94 mg/l |
| 19 Apr 2024, 12:08 | 5.75 | 5.75 mg/l |
| 18 Mar 2024, 09:03 | 4.67 | 4.67 mg/l |
| 29 Feb 2024, 10:39 | 4.87 | 4.87 mg/l |
| 15 Jan 2024, 10:39 | 5.45 | 5.45 mg/l |
| 14 Dec 2023, 15:31 | 3.97 | 3.97 mg/l |
| 28 Nov 2023, 11:40 | 3.45 | 3.45 mg/l |
| 24 Oct 2023, 10:52 | 5.06 | 5.06 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.68 mg/l
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 0.68 | 0.68 mg/l |
| 19 Aug 2026, 10:47 | 0.69 | 0.69 mg/l |
| 4 Aug 2026, 11:22 | 0.59 | 0.59 mg/l |
| 13 Jul 2026, 10:56 | 0.36 | 0.36 mg/l |
| 9 Jul 2026, 10:46 | 0.35 | 0.35 mg/l |
| 15 Jun 2026, 11:02 | 0.28 | 0.28 mg/l |
| 3 Jun 2026, 12:29 | 0.21 | 0.21 mg/l |
| 18 May 2026, 11:24 | 0.23 | 0.23 mg/l |
| 11 May 2026, 10:55 | 0.42 | 0.42 mg/l |
| 24 Apr 2026, 09:54 | 0.18 | 0.18 mg/l |
| 14 Apr 2026, 11:39 | 0.18 | 0.18 mg/l |
| 20 Jan 2026, 12:30 | 0.23 | 0.23 mg/l |
| 16 Jan 2026, 10:38 | 0.19 | 0.19 mg/l |
| 16 Dec 2025, 11:17 | 0.34 | 0.34 mg/l |
| 2 Dec 2025, 10:46 | 0.23 | 0.23 mg/l |
| 17 Nov 2025, 13:05 | 0.33 | 0.33 mg/l |
| 13 Nov 2025, 13:50 | 0.34 | 0.34 mg/l |
| 26 Mar 2025, 12:33 | 0.13 | 0.13 mg/l |
| 13 Feb 2025, 12:19 | 0.17 | 0.17 mg/l |
| 22 Jan 2025, 11:31 | 0.23 | 0.23 mg/l |
| 3 Dec 2024, 11:45 | 0.18 | 0.18 mg/l |
| 19 Nov 2024, 10:55 | 0.21 | 0.21 mg/l |
| 21 Oct 2024, 11:17 | 0.2 | 0.2 mg/l |
| 25 Sep 2024, 10:33 | 0.43 | 0.43 mg/l |
| 22 Aug 2024, 10:21 | 0.37 | 0.37 mg/l |
| 18 Jul 2024, 10:34 | 0.22 | 0.22 mg/l |
| 27 Jun 2024, 12:57 | 0.22 | 0.22 mg/l |
| 28 May 2024, 12:14 | 0.15 | 0.15 mg/l |
| 19 Apr 2024, 12:08 | 0.1 | 0.1 mg/l |
| 18 Mar 2024, 09:03 | 0.12 | 0.12 mg/l |
| 29 Feb 2024, 10:39 | 0.13 | 0.13 mg/l |
| 15 Jan 2024, 10:39 | 0.15 | 0.15 mg/l |
| 14 Dec 2023, 15:31 | 0.17 | 0.17 mg/l |
| 28 Nov 2023, 11:40 | 0.19 | 0.19 mg/l |
| 24 Oct 2023, 10:52 | 0.17 | 0.17 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
770 µS/cm
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:15 | 770 | 770 µS/cm |
| 19 Aug 2026, 10:47 | 847 | 847 µS/cm |
| 4 Aug 2026, 11:22 | 908 | 908 µS/cm |
| 13 Jul 2026, 10:56 | 814 | 814 µS/cm |
| 9 Jul 2026, 10:46 | 786 | 786 µS/cm |
| 15 Jun 2026, 11:02 | 1175 | 1175 µS/cm |
| 3 Jun 2026, 12:29 | 553 | 553 µS/cm |
| 18 May 2026, 11:24 | 784 | 784 µS/cm |
| 11 May 2026, 10:55 | 920 | 920 µS/cm |
| 24 Apr 2026, 09:54 | 760 | 760 µS/cm |
| 14 Apr 2026, 11:39 | 790 | 790 µS/cm |
| 20 Jan 2026, 12:30 | 930 | 930 µS/cm |
| 16 Jan 2026, 10:38 | 655 | 655 µS/cm |
| 16 Dec 2025, 11:17 | 970 | 970 µS/cm |
| 2 Dec 2025, 10:46 | 644 | 644 µS/cm |
| 17 Nov 2025, 13:05 | 869 | 869 µS/cm |
| 13 Nov 2025, 13:50 | 814 | 814 µS/cm |
| 26 Mar 2025, 12:33 | 802 | 802 µS/cm |
| 13 Feb 2025, 12:19 | 845 | 845 µS/cm |
| 22 Jan 2025, 11:31 | 841 | 841 µS/cm |
| 3 Dec 2024, 11:45 | 801 | 801 µS/cm |
| 19 Nov 2024, 10:55 | 382 | 382 µS/cm |
| 21 Oct 2024, 11:17 | 728 | 728 µS/cm |
| 25 Sep 2024, 10:33 | 467 | 467 µS/cm |
| 22 Aug 2024, 10:21 | 811 | 811 µS/cm |
| 18 Jul 2024, 10:34 | 763 | 763 µS/cm |
| 27 Jun 2024, 12:57 | 790 | 790 µS/cm |
| 28 May 2024, 12:14 | 874 | 874 µS/cm |
| 19 Apr 2024, 12:08 | 792 | 792 µS/cm |
| 18 Mar 2024, 09:03 | 801 | 801 µS/cm |
| 29 Feb 2024, 10:39 | 873 | 873 µS/cm |
| 15 Jan 2024, 10:39 | 876 | 876 µS/cm |
| 14 Dec 2023, 15:31 | 757 | 757 µS/cm |
| 28 Nov 2023, 11:40 | 721 | 721 µS/cm |
| 24 Oct 2023, 10:52 | 574 | 574 µS/cm |
Everything measured here
60 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 60 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 35 | Oct 2023 – Sep 2026 | 91.8% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 35 | Oct 2023 – Sep 2026 | 8.58 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 35 | Oct 2023 – Sep 2026 | 18.5 °C 3 Sep 2026 |
| pH 0061 | River water | 35 | Oct 2023 – Sep 2026 | 7.72 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 35 | Oct 2023 – Sep 2026 | 0.066 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 35 | Oct 2023 – Sep 2026 | 1.54 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 35 | Oct 2023 – Sep 2026 | 0.68 mg/l 3 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 35 | Oct 2023 – Sep 2026 | 770 µS/cm 3 Sep 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Nov 2024 – Nov 2024 | below 0.004 µg/l 19 Nov 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 19 Nov 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Nov 2024 – Nov 2024 | 0.0011 µg/l 19 Nov 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 35 | Oct 2023 – Sep 2026 | 240 mg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 35 | Oct 2023 – Sep 2026 | 0.00119 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 31 | Feb 2024 – Sep 2026 | below 4 mg/l 3 Sep 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| Nitrite as N 0118 | River water | 35 | Oct 2023 – Sep 2026 | 0.059 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 35 | Oct 2023 – Sep 2026 | 1.6 mg/l 3 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Nov 2024 – Nov 2024 | 0.0032 µg/l 19 Nov 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Nov 2024 – Nov 2024 | 0.0048 µg/l 19 Nov 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Nov 2024 – Nov 2024 | 0.00083 µg/l 19 Nov 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 19 Nov 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Nov 2024 – Nov 2024 | 0.0027 µg/l 19 Nov 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Nov 2024 – Nov 2024 | 0.0012 µg/l 19 Nov 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Nov 2024 – Nov 2024 | 0.0063 µg/l 19 Nov 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 19 Nov 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Nov 2024 – Nov 2024 | 0.0023 µg/l 19 Nov 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Nov 2024 – Nov 2024 | 0.0037 µg/l 19 Nov 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Nov 2024 – Nov 2024 | 0.0049 µg/l 19 Nov 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 19 Nov 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Nov 2024 – Nov 2024 | 0.0048 µg/l 19 Nov 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Nov 2024 – Nov 2024 | below 0.006 µg/l 19 Nov 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 19 Nov 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Nov 2024 – Nov 2024 | below 0.004 µg/l 19 Nov 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 19 Nov 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.