Ardingly Treatment Works
EA name: ARDINGLY TREATMENT WORKS
Environment Agency sampling point SO-F0017599 · 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, 11:1728 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 23 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 533584, 128473As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedTwo watercourses within reach (0 m and 38 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (35 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
90.6%
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 90.6 | 90.6% |
| 11 Aug 2026, 10:59 | 79.9 | 79.9% |
| 8 Jul 2026, 12:10 | 90.3 | 90.3% |
| 12 Jun 2026, 10:33 | 76.8 | 76.8% |
| 27 May 2026, 14:41 | 82.6 | 82.6% |
| 29 Apr 2026, 10:33 | 96.5 | 96.5% |
| 29 Apr 2026, 10:31 | 96.2 | 96.2% |
| 5 Mar 2026, 12:25 | 102.9 | 102.9% |
| 12 Feb 2026, 11:35 | 101.7 | 101.7% |
| 29 Jan 2026, 11:03 | 106.4 | 106.4% |
| 2 Dec 2025, 13:54 | 92.5 | 92.5% |
| 4 Nov 2025, 13:32 | 83.7 | 83.7% |
| 6 Oct 2025, 12:54 | 92 | 92% |
| 22 Sep 2025, 11:26 | 89.4 | 89.4% |
| 20 Aug 2025, 12:30 | 89.8 | 89.8% |
| 21 Jul 2025, 09:30 | 83.4 | 83.4% |
| 6 Jun 2025, 12:57 | 85.5 | 85.5% |
| 1 May 2025, 11:17 | 89.4 | 89.4% |
| 10 Apr 2025, 10:52 | 103.3 | 103.3% |
| 4 Mar 2025, 14:21 | 102.6 | 102.6% |
| 13 Feb 2025, 11:26 | 101.9 | 101.9% |
| 30 Jan 2025, 11:18 | 100.6 | 100.6% |
| 6 Dec 2024, 12:31 | 100.2 | 100.2% |
| 29 Nov 2024, 12:23 | 100.3 | 100.3% |
| 23 Oct 2024, 10:53 | 94.1 | 94.1% |
| 20 Sep 2024, 11:37 | 89.9 | 89.9% |
| 27 Aug 2024, 10:54 | 81.1 | 81.1% |
| 15 Jul 2024, 12:33 | 73.3 | 73.3% |
| 28 Jun 2024, 10:36 | 75 | 75% |
| 21 Mar 2024, 13:46 | 101.3 | 101.3% |
| 15 Feb 2024, 12:47 | 102.6 | 102.6% |
| 11 Jan 2024, 11:46 | 102.6 | 102.6% |
| 6 Dec 2023, 12:36 | 93.8 | 93.8% |
| 13 Nov 2023, 12:40 | 90.1 | 90.1% |
| 23 Oct 2023, 12:29 | 91.3 | 91.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.2 mg/l
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 8.2 | 8.2 mg/l |
| 11 Aug 2026, 10:59 | 7.23 | 7.23 mg/l |
| 8 Jul 2026, 12:10 | 8.51 | 8.51 mg/l |
| 12 Jun 2026, 10:33 | 8.11 | 8.11 mg/l |
| 27 May 2026, 14:41 | 8.74 | 8.74 mg/l |
| 29 Apr 2026, 10:33 | 10.4 | 10.4 mg/l |
| 29 Apr 2026, 10:31 | 10.3 | 10.3 mg/l |
| 5 Mar 2026, 12:25 | 11.8 | 11.8 mg/l |
| 12 Feb 2026, 11:35 | 12 | 12 mg/l |
| 29 Jan 2026, 11:03 | 13.2 | 13.2 mg/l |
| 2 Dec 2025, 13:54 | 10.7 | 10.7 mg/l |
| 4 Nov 2025, 13:32 | 8.96 | 8.96 mg/l |
| 6 Oct 2025, 12:54 | 9.33 | 9.33 mg/l |
| 22 Sep 2025, 11:26 | 8.91 | 8.91 mg/l |
| 20 Aug 2025, 12:30 | 8.23 | 8.23 mg/l |
| 21 Jul 2025, 09:30 | 7.72 | 7.72 mg/l |
| 6 Jun 2025, 12:57 | 9.05 | 9.05 mg/l |
| 1 May 2025, 11:17 | 9.77 | 9.77 mg/l |
| 10 Apr 2025, 10:52 | 11.8 | 11.8 mg/l |
| 4 Mar 2025, 14:21 | 12.5 | 12.5 mg/l |
| 13 Feb 2025, 11:26 | 13 | 13 mg/l |
| 30 Jan 2025, 11:18 | 12.7 | 12.7 mg/l |
| 6 Dec 2024, 12:31 | 11.7 | 11.7 mg/l |
| 29 Nov 2024, 12:23 | 11.5 | 11.5 mg/l |
| 23 Oct 2024, 10:53 | 10 | 10 mg/l |
| 20 Sep 2024, 11:37 | 8.78 | 8.78 mg/l |
| 27 Aug 2024, 10:54 | 7.92 | 7.92 mg/l |
| 15 Jul 2024, 12:33 | 7.74 | 7.74 mg/l |
| 28 Jun 2024, 10:36 | 8.01 | 8.01 mg/l |
| 21 Mar 2024, 13:46 | 11.4 | 11.4 mg/l |
| 15 Feb 2024, 12:47 | 12 | 12 mg/l |
| 11 Jan 2024, 11:46 | 13 | 13 mg/l |
| 6 Dec 2023, 12:36 | 11.4 | 11.4 mg/l |
| 13 Nov 2023, 12:40 | 9.91 | 9.91 mg/l |
| 23 Oct 2023, 12:29 | 9.51 | 9.51 mg/l |
Water temperature
code 0076 · °C
20.1 °C
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 20.1 | 20.1 °C |
| 11 Aug 2026, 10:59 | 20.1 | 20.1 °C |
| 8 Jul 2026, 12:10 | 18.1 | 18.1 °C |
| 12 Jun 2026, 10:33 | 12.8 | 12.8 °C |
| 27 May 2026, 14:41 | 12.7 | 12.7 °C |
| 29 Apr 2026, 10:33 | 12.1 | 12.1 °C |
| 29 Apr 2026, 10:31 | 12 | 12 °C |
| 5 Mar 2026, 12:25 | 9.2 | 9.2 °C |
| 12 Feb 2026, 11:35 | 8.1 | 8.1 °C |
| 29 Jan 2026, 11:03 | 6.2 | 6.2 °C |
| 2 Dec 2025, 13:54 | 9 | 9 °C |
| 4 Nov 2025, 13:32 | 12.2 | 12.2 °C |
| 6 Oct 2025, 12:54 | 14.6 | 14.6 °C |
| 22 Sep 2025, 11:26 | 15.4 | 15.4 °C |
| 20 Aug 2025, 12:30 | 19.5 | 19.5 °C |
| 21 Jul 2025, 09:30 | 19 | 19 °C |
| 6 Jun 2025, 12:57 | 12.7 | 12.7 °C |
| 1 May 2025, 11:17 | 11.3 | 11.3 °C |
| 10 Apr 2025, 10:52 | 9.3 | 9.3 °C |
| 4 Mar 2025, 14:21 | 6.7 | 6.7 °C |
| 13 Feb 2025, 11:26 | 5.1 | 5.1 °C |
| 30 Jan 2025, 11:18 | 5.5 | 5.5 °C |
| 6 Dec 2024, 12:31 | 8.6 | 8.6 °C |
| 29 Nov 2024, 12:23 | 9.1 | 9.1 °C |
| 23 Oct 2024, 10:53 | 12.4 | 12.4 °C |
| 20 Sep 2024, 11:37 | 16.4 | 16.4 °C |
| 27 Aug 2024, 10:54 | 16.4 | 16.4 °C |
| 15 Jul 2024, 12:33 | 12.8 | 12.8 °C |
| 28 Jun 2024, 10:36 | 12.3 | 12.3 °C |
| 21 Mar 2024, 13:46 | 10.2 | 10.2 °C |
| 15 Feb 2024, 12:47 | 8.3 | 8.3 °C |
| 11 Jan 2024, 11:46 | 5.2 | 5.2 °C |
| 6 Dec 2023, 12:36 | 6.8 | 6.8 °C |
| 13 Nov 2023, 12:40 | 11 | 11 °C |
| 23 Oct 2023, 12:29 | 13.4 | 13.4 °C |
pH
code 0061
8.35
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 8.35 | 8.35 |
| 11 Aug 2026, 10:59 | 7.77 | 7.77 |
| 8 Jul 2026, 12:10 | 7.52 | 7.52 |
| 12 Jun 2026, 10:33 | 7.46 | 7.46 |
| 27 May 2026, 14:41 | 7.31 | 7.31 |
| 29 Apr 2026, 10:33 | 7.82 | 7.82 |
| 29 Apr 2026, 10:31 | 7.87 | 7.87 |
| 5 Mar 2026, 12:25 | 7.72 | 7.72 |
| 12 Feb 2026, 11:35 | 7.77 | 7.77 |
| 29 Jan 2026, 11:03 | 7.75 | 7.75 |
| 2 Dec 2025, 13:54 | 7.56 | 7.56 |
| 4 Nov 2025, 13:32 | 7.45 | 7.45 |
| 6 Oct 2025, 12:54 | 7.68 | 7.68 |
| 22 Sep 2025, 11:26 | 8.18 | 8.18 |
| 20 Aug 2025, 12:30 | 7.89 | 7.89 |
| 21 Jul 2025, 09:30 | 7.82 | 7.82 |
| 6 Jun 2025, 12:57 | 7.32 | 7.32 |
| 1 May 2025, 11:17 | 7.38 | 7.38 |
| 10 Apr 2025, 10:52 | 7.83 | 7.83 |
| 4 Mar 2025, 14:21 | 7.82 | 7.82 |
| 13 Feb 2025, 11:26 | 7.73 | 7.73 |
| 30 Jan 2025, 11:18 | 7.82 | 7.82 |
| 6 Dec 2024, 12:31 | 7.8 | 7.8 |
| 29 Nov 2024, 12:23 | 7.87 | 7.87 |
| 23 Oct 2024, 10:53 | 7.62 | 7.62 |
| 20 Sep 2024, 11:37 | 7.85 | 7.85 |
| 27 Aug 2024, 10:54 | 7.51 | 7.51 |
| 15 Jul 2024, 12:33 | 7.39 | 7.39 |
| 28 Jun 2024, 10:36 | 7.2 | 7.2 |
| 21 Mar 2024, 13:46 | 7.57 | 7.57 |
| 15 Feb 2024, 12:47 | 7.88 | 7.88 |
| 11 Jan 2024, 11:46 | 7.85 | 7.85 |
| 6 Dec 2023, 12:36 | 7.55 | 7.55 |
| 13 Nov 2023, 12:40 | 7.41 | 7.41 |
| 23 Oct 2023, 12:29 | 7.78 | 7.78 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.17 mg/l
Sampled 3 Sep 2026, 28 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 0.17 | 0.17 mg/l |
| 11 Aug 2026, 10:59 | 0.3 | 0.3 mg/l |
| 8 Jul 2026, 12:10 | 0.27 | 0.27 mg/l |
| 12 Jun 2026, 10:33 | 0.26 | 0.26 mg/l |
| 27 May 2026, 14:41 | 0.07 | 0.07 mg/l |
| 29 Apr 2026, 10:31 | 0.011 | 0.011 mg/l |
| 5 Mar 2026, 12:25 | 0.0063 | 0.0063 mg/l |
| 12 Feb 2026, 11:35 | 0.11 | 0.11 mg/l |
| 29 Jan 2026, 11:03 | 0.036 | 0.036 mg/l |
| 2 Dec 2025, 13:54 | 0.051 | 0.051 mg/l |
| 4 Nov 2025, 13:32 | 0.098 | 0.098 mg/l |
| 6 Oct 2025, 12:54 | 0.15 | 0.15 mg/l |
| 22 Sep 2025, 11:26 | 0.1 | 0.1 mg/l |
| 20 Aug 2025, 12:30 | 0.23 | 0.23 mg/l |
| 21 Jul 2025, 09:30 | 0.18 | 0.18 mg/l |
| 6 Jun 2025, 12:57 | 0.036 | 0.036 mg/l |
| 1 May 2025, 11:17 | 0.022 | 0.022 mg/l |
| 10 Apr 2025, 10:52 | 0.035 | 0.035 mg/l |
| 4 Mar 2025, 14:21 | 0.008 | 0.008 mg/l |
| 13 Feb 2025, 11:26 | 0.007 | 0.007 mg/l |
| 30 Jan 2025, 11:18 | 0.0092 | 0.0092 mg/l |
| 6 Dec 2024, 12:31 | 0.019 | 0.019 mg/l |
| 29 Nov 2024, 12:23 | 0.016 | 0.016 mg/l |
| 20 Sep 2024, 11:37 | 0.12 | 0.12 mg/l |
| 27 Aug 2024, 10:54 | 0.36 | 0.36 mg/l |
| 15 Jul 2024, 12:33 | 0.15 | 0.15 mg/l |
| 28 Jun 2024, 10:36 | 0.036 | 0.036 mg/l |
| 21 Mar 2024, 13:46 | 0.0074 | 0.0074 mg/l |
| 15 Feb 2024, 12:47 | 0.0078 | 0.0078 mg/l |
| 11 Jan 2024, 11:46 | 0.0091 | 0.0091 mg/l |
| 6 Dec 2023, 12:36 | 0.055 | 0.055 mg/l |
| 13 Nov 2023, 12:40 | 0.073 | 0.073 mg/l |
| 23 Oct 2023, 12:29 | 0.085 | 0.085 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.132 mg/l
Sampled 3 Sep 2026, 28 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 0.132 | 0.132 mg/l |
| 11 Aug 2026, 10:59 | 0.206 | 0.206 mg/l |
| 8 Jul 2026, 12:10 | 0.607 | 0.607 mg/l |
| 12 Jun 2026, 10:33 | 0.935 | 0.935 mg/l |
| 27 May 2026, 14:41 | 1.27 | 1.27 mg/l |
| 29 Apr 2026, 10:31 | 1.58 | 1.58 mg/l |
| 5 Mar 2026, 12:25 | 1.79 | 1.79 mg/l |
| 12 Feb 2026, 11:35 | 1.78 | 1.78 mg/l |
| 29 Jan 2026, 11:03 | 1.68 | 1.68 mg/l |
| 2 Dec 2025, 13:54 | 1.68 | 1.68 mg/l |
| 4 Nov 2025, 13:32 | 1.28 | 1.28 mg/l |
| 6 Oct 2025, 12:54 | 0.254 | 0.254 mg/l |
| 22 Sep 2025, 11:26 | 0.138 | 0.138 mg/l |
| 20 Aug 2025, 12:30 | 0.121 | 0.121 mg/l |
| 21 Jul 2025, 09:30 | 0.436 | 0.436 mg/l |
| 6 Jun 2025, 12:57 | 1.2 | 1.2 mg/l |
| 1 May 2025, 11:17 | 1.39 | 1.39 mg/l |
| 10 Apr 2025, 10:52 | 1.49 | 1.49 mg/l |
| 4 Mar 2025, 14:21 | 1.59 | 1.59 mg/l |
| 13 Feb 2025, 11:26 | 1.5 | 1.5 mg/l |
| 30 Jan 2025, 11:18 | 1.49 | 1.49 mg/l |
| 6 Dec 2024, 12:31 | 0.995 | 0.995 mg/l |
| 29 Nov 2024, 12:23 | 0.956 | 0.956 mg/l |
| 20 Sep 2024, 11:37 | 0.362 | 0.362 mg/l |
| 27 Aug 2024, 10:54 | 0.236 | 0.236 mg/l |
| 15 Jul 2024, 12:33 | 0.853 | 0.853 mg/l |
| 28 Jun 2024, 10:36 | 1.3 | 1.3 mg/l |
| 21 Mar 2024, 13:46 | 1.8 | 1.8 mg/l |
| 15 Feb 2024, 12:47 | 1.78 | 1.78 mg/l |
| 11 Jan 2024, 11:46 | 1.59 | 1.59 mg/l |
| 6 Dec 2023, 12:36 | 1.58 | 1.58 mg/l |
| 13 Nov 2023, 12:40 | 1.09 | 1.09 mg/l |
| 23 Oct 2023, 12:29 | 0.684 | 0.684 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.015 mg/l
Sampled 3 Sep 2026, 28 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 0.015 | 0.015 mg/l |
| 11 Aug 2026, 10:59 | 0.054 | 0.054 mg/l |
| 8 Jul 2026, 12:10 | 0.014 | 0.014 mg/l |
| 12 Jun 2026, 10:33 | 0.042 | 0.042 mg/l |
| 27 May 2026, 14:41 | 0.024 | 0.024 mg/l |
| 29 Apr 2026, 10:31 | 0.011 | 0.011 mg/l |
| 5 Mar 2026, 12:25 | 0.044 | 0.044 mg/l |
| 12 Feb 2026, 11:35 | 0.047 | 0.047 mg/l |
| 29 Jan 2026, 11:03 | 0.045 | 0.045 mg/l |
| 2 Dec 2025, 13:54 | 0.031 | 0.031 mg/l |
| 4 Nov 2025, 13:32 | 0.034 | 0.034 mg/l |
| 6 Oct 2025, 12:54 | 0.0079 | 0.0079 mg/l |
| 22 Sep 2025, 11:26 | 0.0095 | 0.0095 mg/l |
| 20 Aug 2025, 12:30 | 0.063 | 0.063 mg/l |
| 21 Jul 2025, 09:30 | 0.056 | 0.056 mg/l |
| 6 Jun 2025, 12:57 | 0.0061 | 0.0061 mg/l |
| 1 May 2025, 11:17 | 0.02 | 0.02 mg/l |
| 10 Apr 2025, 10:52 | 0.013 | 0.013 mg/l |
| 4 Mar 2025, 14:21 | 0.025 | 0.025 mg/l |
| 13 Feb 2025, 11:26 | 0.03 | 0.03 mg/l |
| 30 Jan 2025, 11:18 | 0.034 | 0.034 mg/l |
| 6 Dec 2024, 12:31 | 0.024 | 0.024 mg/l |
| 29 Nov 2024, 12:23 | 0.017 | 0.017 mg/l |
| 20 Sep 2024, 11:37 | 0.0057 | 0.0057 mg/l |
| 27 Aug 2024, 10:54 | 0.048 | 0.048 mg/l |
| 15 Jul 2024, 12:33 | 0.047 | 0.047 mg/l |
| 28 Jun 2024, 10:36 | 0.0044 | 0.0044 mg/l |
| 21 Mar 2024, 13:46 | 0.028 | 0.028 mg/l |
| 15 Feb 2024, 12:47 | 0.024 | 0.024 mg/l |
| 11 Jan 2024, 11:46 | 0.02 | 0.02 mg/l |
| 6 Dec 2023, 12:36 | 0.015 | 0.015 mg/l |
| 13 Nov 2023, 12:40 | 0.032 | 0.032 mg/l |
| 23 Oct 2023, 12:29 | 0.011 | 0.011 mg/l |
Turbidity
code 6396 · NTU
11 NTU
Sampled 15 Feb 2024, 2.6 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Feb 2024, 12:47 | 11 | 11 NTU |
| 11 Jan 2024, 11:46 | 12 | 12 NTU |
| 6 Dec 2023, 12:36 | 17 | 17 NTU |
| 13 Nov 2023, 12:40 | 21 | 21 NTU |
| 23 Oct 2023, 12:29 | 19 | 19 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
422 µS/cm
Sampled 3 Sep 2026, 28 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 11:17 | 422 | 422 µS/cm |
| 11 Aug 2026, 10:59 | 245 | 245 µS/cm |
| 8 Jul 2026, 12:10 | 226 | 226 µS/cm |
| 12 Jun 2026, 10:33 | 218 | 218 µS/cm |
| 27 May 2026, 14:41 | 212 | 212 µS/cm |
| 29 Apr 2026, 10:33 | 221 | 221 µS/cm |
| 29 Apr 2026, 10:31 | 221 | 221 µS/cm |
| 5 Mar 2026, 12:25 | 204 | 204 µS/cm |
| 12 Feb 2026, 11:35 | 194 | 194 µS/cm |
| 29 Jan 2026, 11:03 | 230 | 230 µS/cm |
| 2 Dec 2025, 13:54 | 303 | 303 µS/cm |
| 4 Nov 2025, 13:32 | 330 | 330 µS/cm |
| 6 Oct 2025, 12:54 | 261 | 261 µS/cm |
| 22 Sep 2025, 11:26 | 324 | 324 µS/cm |
| 20 Aug 2025, 12:30 | 245 | 245 µS/cm |
| 21 Jul 2025, 09:30 | 248 | 248 µS/cm |
| 6 Jun 2025, 12:57 | 221 | 221 µS/cm |
| 1 May 2025, 11:17 | 233 | 233 µS/cm |
| 10 Apr 2025, 10:52 | 235 | 235 µS/cm |
| 4 Mar 2025, 14:21 | 220 | 220 µS/cm |
| 13 Feb 2025, 11:26 | 217 | 217 µS/cm |
| 30 Jan 2025, 11:18 | 219 | 219 µS/cm |
| 6 Dec 2024, 12:31 | 212 | 212 µS/cm |
| 29 Nov 2024, 12:23 | 226 | 226 µS/cm |
| 23 Oct 2024, 10:53 | 261 | 261 µS/cm |
| 20 Sep 2024, 11:37 | 238 | 238 µS/cm |
| 27 Aug 2024, 10:54 | 242 | 242 µS/cm |
| 15 Jul 2024, 12:33 | 216 | 216 µS/cm |
| 28 Jun 2024, 10:36 | 208 | 208 µS/cm |
| 21 Mar 2024, 13:46 | 204 | 204 µS/cm |
| 15 Feb 2024, 12:47 | 206 | 206 µS/cm |
| 11 Jan 2024, 11:46 | 247 | 247 µS/cm |
| 6 Dec 2023, 12:36 | 270 | 270 µS/cm |
| 13 Nov 2023, 12:40 | 256 | 256 µS/cm |
| 23 Oct 2023, 12:29 | 286 | 286 µS/cm |
Everything measured here
78 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 78 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 35 | Oct 2023 – Sep 2026 | 90.6% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 35 | Oct 2023 – Sep 2026 | 8.2 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 35 | Oct 2023 – Sep 2026 | 20.1 °C 3 Sep 2026 |
| pH 0061 | River water | 35 | Oct 2023 – Sep 2026 | 8.35 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | 0.17 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Sep 2026 | 0.132 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Sep 2026 | 0.015 mg/l 3 Sep 2026 |
| Turbidity 6396 | River water | 5 | Oct 2023 – Feb 2024 | 11 NTU 15 Feb 2024 |
| Conductivity at 25 C 0077 | River water | 35 | Oct 2023 – Sep 2026 | 422 µS/cm 3 Sep 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Feb 2026 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Feb 2026 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Feb 2026 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Aug 2025 – Feb 2026 | below 0.004 µg/l 12 Feb 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Feb 2026 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Feb 2026 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Feb 2026 – Feb 2026 | below 0.004 µg/l 12 Feb 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Feb 2026 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Feb 2026 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Aug 2025 – Feb 2026 | 0.014 µg/l 12 Feb 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Feb 2026 – Feb 2026 | below 0.01 µg/l 12 Feb 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Feb 2026 – Feb 2026 | below 0.004 µg/l 12 Feb 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Feb 2026 – Feb 2026 | below 0.01 µg/l 12 Feb 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Feb 2026 – Feb 2026 | below 0.01 µg/l 12 Feb 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Sep 2026 | 75 mg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Sep 2026 | 0.00645 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1 mg/l 27 May 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 5 | Oct 2023 – Feb 2024 | 2.6 µg/l 15 Feb 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Feb 2026 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Aug 2025 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Aug 2025 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Sep 2026 | 0.018 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Sep 2026 | 0.15 mg/l 3 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorobutanoic acid 2995 | River water | 2 | Aug 2025 – Feb 2026 | 0.0011 µg/l 12 Feb 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorodecanoic acid 8892 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Aug 2025 – Feb 2026 | below 0.005 µg/l 12 Feb 2026 |
| Perfluorododecanoic acid 8894 | River water | 2 | Aug 2025 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Feb 2026 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorohexanoic acid 8888 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorononanoic acid 8891 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 20 Aug 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Aug 2025 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Feb 2026 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorooctanoic acid 8890 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Aug 2025 – Feb 2026 | below 0.0005 µg/l 12 Feb 2026 |
| Perfluoropentanoic acid 8887 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Aug 2025 – Feb 2026 | below 0.006 µg/l 12 Feb 2026 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Aug 2025 – Feb 2026 | below 0.002 µg/l 12 Feb 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Aug 2025 – Feb 2026 | below 0.004 µg/l 12 Feb 2026 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Aug 2025 – Feb 2026 | below 0.001 µg/l 12 Feb 2026 |
| Solids, Suspended at 105 C 0135 | River water | 5 | Oct 2023 – Feb 2024 | 10 mg/l 15 Feb 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.