River Medlock at Pinmill Brow
EA name: RIVER MEDLOCK AT PINMILL BROW
Environment Agency sampling point NW-88002413 · 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
- 12 Aug 2026, 11:0150 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 16 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 385672, 397756As published, to the nearest 1 m. Open in a map
- River, by its own name
- Medlock
- River, by the map
- River MedlockPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Gurney Street On the River Medlock · 0.9 km along the river
- Nearest gauge upstream
- London Road On the River Medlock · 1.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (18 samples)
Environmental monitoring statutory (EU directives) (17 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.8%
Sampled 12 Aug 2026, 50 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 93.8 | 93.8% |
| 6 Jul 2026, 10:03 | 100.5 | 100.5% |
| 8 Jun 2026, 11:31 | 94.9 | 94.9% |
| 1 Jun 2026, 09:46 | 89.3 | 89.3% |
| 20 May 2026, 10:47 | 97.2 | 97.2% |
| 27 Apr 2026, 11:08 | 97.5 | 97.5% |
| 19 Mar 2026, 11:10 | 99.7 | 99.7% |
| 8 Jan 2026, 11:15 | 98.7 | 98.7% |
| 15 Dec 2025, 11:10 | 103.1 | 103.1% |
| 26 Nov 2025, 12:50 | 102.3 | 102.3% |
| 19 Nov 2025, 12:53 | 101.2 | 101.2% |
| 24 Oct 2025, 10:27 | 98.9 | 98.9% |
| 17 Oct 2025, 09:39 | 93.4 | 93.4% |
| 18 Aug 2025, 14:24 | 91.4 | 91.4% |
| 10 Jul 2025, 13:39 | 101.5 | 101.5% |
| 16 Jun 2025, 14:49 | 95 | 95% |
| 7 May 2025, 12:29 | 100.5 | 100.5% |
| 10 Apr 2025, 12:46 | 113.2 | 113.2% |
| 27 Mar 2025, 11:49 | 107.9 | 107.9% |
| 30 Jan 2025, 12:21 | 100.5 | 100.5% |
| 11 Dec 2024, 13:52 | 98.2 | 98.2% |
| 25 Nov 2024, 10:59 | 100.6 | 100.6% |
| 23 Oct 2024, 10:02 | 97.8 | 97.8% |
| 24 Sep 2024, 10:25 | 95.8 | 95.8% |
| 22 Aug 2024, 09:55 | 91.9 | 91.9% |
| 17 Jul 2024, 09:22 | 101.9 | 101.9% |
| 17 Jun 2024, 13:25 | 97.1 | 97.1% |
| 14 May 2024, 13:07 | 95.3 | 95.3% |
| 17 Apr 2024, 10:27 | 99.5 | 99.5% |
| 27 Mar 2024, 10:24 | 103.4 | 103.4% |
| 19 Feb 2024, 13:18 | 102.3 | 102.3% |
| 26 Jan 2024, 10:11 | 99.3 | 99.3% |
| 5 Dec 2023, 13:36 | 99.7 | 99.7% |
| 21 Nov 2023, 11:31 | 100 | 100% |
| 16 Oct 2023, 10:01 | 99 | 99% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.96 mg/l
Sampled 12 Aug 2026, 50 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 8.96 | 8.96 mg/l |
| 6 Jul 2026, 10:03 | 9.6 | 9.6 mg/l |
| 8 Jun 2026, 11:31 | 9.8 | 9.8 mg/l |
| 1 Jun 2026, 09:46 | 8.86 | 8.86 mg/l |
| 20 May 2026, 10:47 | 10.5 | 10.5 mg/l |
| 27 Apr 2026, 11:08 | 10.3 | 10.3 mg/l |
| 19 Mar 2026, 11:10 | 11.4 | 11.4 mg/l |
| 8 Jan 2026, 11:15 | 13 | 13 mg/l |
| 15 Dec 2025, 11:10 | 11.8 | 11.8 mg/l |
| 26 Nov 2025, 12:50 | 13.1 | 13.1 mg/l |
| 19 Nov 2025, 12:53 | 12.1 | 12.1 mg/l |
| 24 Oct 2025, 10:27 | 11.1 | 11.1 mg/l |
| 17 Oct 2025, 09:39 | 10.1 | 10.1 mg/l |
| 18 Aug 2025, 14:24 | 8.79 | 8.79 mg/l |
| 10 Jul 2025, 13:39 | 9.48 | 9.48 mg/l |
| 16 Jun 2025, 14:49 | 9.17 | 9.17 mg/l |
| 7 May 2025, 12:29 | 10.6 | 10.6 mg/l |
| 10 Apr 2025, 12:46 | 12.9 | 12.9 mg/l |
| 27 Mar 2025, 11:49 | 12.1 | 12.1 mg/l |
| 30 Jan 2025, 12:21 | 13.2 | 13.2 mg/l |
| 11 Dec 2024, 13:52 | 12 | 12 mg/l |
| 25 Nov 2024, 10:59 | 11.7 | 11.7 mg/l |
| 23 Oct 2024, 10:02 | 11 | 11 mg/l |
| 24 Sep 2024, 10:25 | 9.85 | 9.85 mg/l |
| 22 Aug 2024, 09:55 | 9.22 | 9.22 mg/l |
| 17 Jul 2024, 09:22 | 10.3 | 10.3 mg/l |
| 17 Jun 2024, 13:25 | 10 | 10 mg/l |
| 14 May 2024, 13:07 | 9.61 | 9.61 mg/l |
| 17 Apr 2024, 10:27 | 11.7 | 11.7 mg/l |
| 27 Mar 2024, 10:24 | 11.9 | 11.9 mg/l |
| 19 Feb 2024, 13:18 | 11.7 | 11.7 mg/l |
| 26 Jan 2024, 10:11 | 11.9 | 11.9 mg/l |
| 5 Dec 2023, 13:36 | 12.4 | 12.4 mg/l |
| 21 Nov 2023, 11:31 | 11.4 | 11.4 mg/l |
| 16 Oct 2023, 10:01 | 11.6 | 11.6 mg/l |
Water temperature
code 0076 · °C
17.4 °C
Sampled 12 Aug 2026, 50 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 17.4 | 17.4 °C |
| 6 Jul 2026, 10:03 | 17.4 | 17.4 °C |
| 8 Jun 2026, 11:31 | 13.8 | 13.8 °C |
| 1 Jun 2026, 09:46 | 15.6 | 15.6 °C |
| 20 May 2026, 10:47 | 11.8 | 11.8 °C |
| 27 Apr 2026, 11:08 | 12.6 | 12.6 °C |
| 19 Mar 2026, 11:10 | 9.2 | 9.2 °C |
| 8 Jan 2026, 11:15 | 3.8 | 3.8 °C |
| 15 Dec 2025, 11:10 | 9.4 | 9.4 °C |
| 26 Nov 2025, 12:50 | 4.7 | 4.7 °C |
| 19 Nov 2025, 12:53 | 7.6 | 7.6 °C |
| 24 Oct 2025, 10:27 | 10.2 | 10.2 °C |
| 17 Oct 2025, 09:39 | 11.8 | 11.8 °C |
| 18 Aug 2025, 14:24 | 17.1 | 17.1 °C |
| 10 Jul 2025, 13:39 | 18.5 | 18.5 °C |
| 16 Jun 2025, 14:49 | 16.9 | 16.9 °C |
| 7 May 2025, 12:29 | 12.7 | 12.7 °C |
| 10 Apr 2025, 12:46 | 9.4 | 9.4 °C |
| 27 Mar 2025, 11:49 | 10.2 | 10.2 °C |
| 30 Jan 2025, 12:21 | 4 | 4 °C |
| 11 Dec 2024, 13:52 | 6.8 | 6.8 °C |
| 25 Nov 2024, 10:59 | 8.7 | 8.7 °C |
| 23 Oct 2024, 10:02 | 10.1 | 10.1 °C |
| 24 Sep 2024, 10:25 | 14 | 14 °C |
| 22 Aug 2024, 09:55 | 15.1 | 15.1 °C |
| 17 Jul 2024, 09:22 | 14.6 | 14.6 °C |
| 17 Jun 2024, 13:25 | 13.7 | 13.7 °C |
| 14 May 2024, 13:07 | 14.9 | 14.9 °C |
| 17 Apr 2024, 10:27 | 8.2 | 8.2 °C |
| 27 Mar 2024, 10:24 | 9.1 | 9.1 °C |
| 19 Feb 2024, 13:18 | 9.3 | 9.3 °C |
| 26 Jan 2024, 10:11 | 7.4 | 7.4 °C |
| 5 Dec 2023, 13:36 | 6.1 | 6.1 °C |
| 21 Nov 2023, 11:31 | 9.4 | 9.4 °C |
| 16 Oct 2023, 10:01 | 8.5 | 8.5 °C |
pH
code 0061
7.92
Sampled 12 Aug 2026, 50 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 7.92 | 7.92 |
| 6 Jul 2026, 10:03 | 8.06 | 8.06 |
| 8 Jun 2026, 11:31 | 7.96 | 7.96 |
| 1 Jun 2026, 09:46 | 8.09 | 8.09 |
| 20 May 2026, 10:47 | 7.92 | 7.92 |
| 27 Apr 2026, 11:08 | 8.04 | 8.04 |
| 19 Mar 2026, 11:10 | 8.1 | 8.1 |
| 8 Jan 2026, 11:15 | 8.21 | 8.21 |
| 15 Dec 2025, 11:10 | 7.78 | 7.78 |
| 26 Nov 2025, 12:50 | 8.23 | 8.23 |
| 19 Nov 2025, 12:53 | 8.12 | 8.12 |
| 24 Oct 2025, 10:27 | 8.13 | 8.13 |
| 17 Oct 2025, 09:39 | 8.11 | 8.11 |
| 18 Aug 2025, 14:24 | 8.14 | 8.14 |
| 10 Jul 2025, 13:39 | 8.1 | 8.1 |
| 16 Jun 2025, 14:49 | 8.12 | 8.12 |
| 7 May 2025, 12:29 | 8.14 | 8.14 |
| 10 Apr 2025, 12:46 | 8.42 | 8.42 |
| 27 Mar 2025, 11:49 | 8.28 | 8.28 |
| 30 Jan 2025, 12:21 | 8.09 | 8.09 |
| 11 Dec 2024, 13:52 | 8.14 | 8.14 |
| 25 Nov 2024, 10:59 | 7.94 | 7.94 |
| 23 Oct 2024, 10:02 | 8.06 | 8.06 |
| 24 Sep 2024, 10:25 | 7.96 | 7.96 |
| 22 Aug 2024, 09:55 | 8.13 | 8.13 |
| 17 Jul 2024, 09:22 | 8.05 | 8.05 |
| 17 Jun 2024, 13:25 | 8.12 | 8.12 |
| 14 May 2024, 13:07 | 8.13 | 8.13 |
| 17 Apr 2024, 10:27 | 8.2 | 8.2 |
| 27 Mar 2024, 10:24 | 8.13 | 8.13 |
| 19 Feb 2024, 13:18 | 8.05 | 8.05 |
| 26 Jan 2024, 10:11 | 8.09 | 8.09 |
| 5 Dec 2023, 13:36 | 7.75 | 7.75 |
| 21 Nov 2023, 11:31 | 7.96 | 7.96 |
| 16 Oct 2023, 10:01 | 8.03 | 8.03 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.044 mg/l
Sampled 12 Aug 2026, 50 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 0.044 | 0.044 mg/l |
| 6 Jul 2026, 10:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jun 2026, 11:31 | 0.25 | 0.25 mg/l |
| 1 Jun 2026, 09:46 | 0.1 | 0.1 mg/l |
| 20 May 2026, 10:47 | 0.11 | 0.11 mg/l |
| 27 Apr 2026, 11:08 | 0.11 | 0.11 mg/l |
| 19 Mar 2026, 11:10 | 0.089 | 0.089 mg/l |
| 8 Jan 2026, 11:15 | 0.48 | 0.48 mg/l |
| 15 Dec 2025, 11:10 | 0.65 | 0.65 mg/l |
| 26 Nov 2025, 12:50 | 0.37 | 0.37 mg/l |
| 24 Oct 2025, 10:27 | 0.053 | 0.053 mg/l |
| 17 Oct 2025, 09:39 | 0.25 | 0.25 mg/l |
| 18 Aug 2025, 14:24 | 0.041 | 0.041 mg/l |
| 10 Jul 2025, 13:39 | 0.043 | 0.043 mg/l |
| 16 Jun 2025, 14:49 | 0.1 | 0.1 mg/l |
| 7 May 2025, 12:29 | 0.098 | 0.098 mg/l |
| 10 Apr 2025, 12:46 | 0.03 | 0.03 mg/l |
| 27 Mar 2025, 11:49 | 0.07 | 0.07 mg/l |
| 30 Jan 2025, 12:21 | 0.58 | 0.58 mg/l |
| 11 Dec 2024, 13:52 | 0.34 | 0.34 mg/l |
| 25 Nov 2024, 10:59 | 0.095 | 0.095 mg/l |
| 23 Oct 2024, 10:02 | 0.11 | 0.11 mg/l |
| 24 Sep 2024, 10:25 | 0.07 | 0.07 mg/l |
| 22 Aug 2024, 09:55 | 0.048 | 0.048 mg/l |
| 17 Jul 2024, 09:22 | 0.17 | 0.17 mg/l |
| 17 Jun 2024, 13:25 | 0.1 | 0.1 mg/l |
| 14 May 2024, 13:07 | 0.14 | 0.14 mg/l |
| 17 Apr 2024, 10:27 | 0.21 | 0.21 mg/l |
| 27 Mar 2024, 10:24 | 0.21 | 0.21 mg/l |
| 19 Feb 2024, 13:18 | 0.2 | 0.2 mg/l |
| 5 Dec 2023, 13:36 | 0.17 | 0.17 mg/l |
| 21 Nov 2023, 11:31 | 0.082 | 0.082 mg/l |
| 16 Oct 2023, 10:01 | 0.081 | 0.081 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.38 mg/l
Sampled 12 Aug 2026, 50 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 2.38 | 2.38 mg/l |
| 6 Jul 2026, 10:03 | 1.96 | 1.96 mg/l |
| 8 Jun 2026, 11:31 | 1.42 | 1.42 mg/l |
| 1 Jun 2026, 09:46 | 2.31 | 2.31 mg/l |
| 20 May 2026, 10:47 | 0.968 | 0.968 mg/l |
| 27 Apr 2026, 11:08 | 3.04 | 3.04 mg/l |
| 19 Mar 2026, 11:10 | 1.87 | 1.87 mg/l |
| 8 Jan 2026, 11:15 | 1.67 | 1.67 mg/l |
| 15 Dec 2025, 11:10 | 1.18 | 1.18 mg/l |
| 26 Nov 2025, 12:50 | 1.26 | 1.26 mg/l |
| 24 Oct 2025, 10:27 | 1.36 | 1.36 mg/l |
| 17 Oct 2025, 09:39 | 2.47 | 2.47 mg/l |
| 18 Aug 2025, 14:24 | 1.49 | 1.49 mg/l |
| 10 Jul 2025, 13:39 | 1.75 | 1.75 mg/l |
| 16 Jun 2025, 14:49 | 2.81 | 2.81 mg/l |
| 7 May 2025, 12:29 | 2.03 | 2.03 mg/l |
| 10 Apr 2025, 12:46 | 2.16 | 2.16 mg/l |
| 27 Mar 2025, 11:49 | 1.58 | 1.58 mg/l |
| 30 Jan 2025, 12:21 | 1.46 | 1.46 mg/l |
| 11 Dec 2024, 13:52 | 1.55 | 1.55 mg/l |
| 25 Nov 2024, 10:59 | 1.76 | 1.76 mg/l |
| 23 Oct 2024, 10:02 | 1.47 | 1.47 mg/l |
| 24 Sep 2024, 10:25 | 1.75 | 1.75 mg/l |
| 22 Aug 2024, 09:55 | 1.57 | 1.57 mg/l |
| 17 Jul 2024, 09:22 | 1.03 | 1.03 mg/l |
| 17 Jun 2024, 13:25 | 0.933 | 0.933 mg/l |
| 14 May 2024, 13:07 | 1.15 | 1.15 mg/l |
| 17 Apr 2024, 10:27 | 1.25 | 1.25 mg/l |
| 27 Mar 2024, 10:24 | 1.64 | 1.64 mg/l |
| 19 Feb 2024, 13:18 | 1.36 | 1.36 mg/l |
| 26 Jan 2024, 10:11 | 1.66 | 1.66 mg/l |
| 5 Dec 2023, 13:36 | 0.965 | 0.965 mg/l |
| 21 Nov 2023, 11:31 | 1.17 | 1.17 mg/l |
| 16 Oct 2023, 10:01 | 1.27 | 1.27 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.1 mg/l
Sampled 12 Aug 2026, 50 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 0.1 | 0.1 mg/l |
| 6 Jul 2026, 10:03 | 0.089 | 0.089 mg/l |
| 8 Jun 2026, 11:31 | 0.12 | 0.12 mg/l |
| 1 Jun 2026, 09:46 | 0.11 | 0.11 mg/l |
| 20 May 2026, 10:47 | 0.071 | 0.071 mg/l |
| 27 Apr 2026, 11:08 | 0.055 | 0.055 mg/l |
| 19 Mar 2026, 11:10 | 0.04 | 0.04 mg/l |
| 8 Jan 2026, 11:15 | 0.057 | 0.057 mg/l |
| 15 Dec 2025, 11:10 | 0.19 | 0.19 mg/l |
| 26 Nov 2025, 12:50 | 0.051 | 0.051 mg/l |
| 24 Oct 2025, 10:27 | 0.073 | 0.073 mg/l |
| 17 Oct 2025, 09:39 | 0.049 | 0.049 mg/l |
| 18 Aug 2025, 14:24 | 0.094 | 0.094 mg/l |
| 10 Jul 2025, 13:39 | 0.081 | 0.081 mg/l |
| 16 Jun 2025, 14:49 | 0.11 | 0.11 mg/l |
| 7 May 2025, 12:29 | 0.053 | 0.053 mg/l |
| 10 Apr 2025, 12:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Mar 2025, 11:49 | 0.012 | 0.012 mg/l |
| 30 Jan 2025, 12:21 | 0.04 | 0.04 mg/l |
| 11 Dec 2024, 13:52 | 0.051 | 0.051 mg/l |
| 25 Nov 2024, 10:59 | 0.088 | 0.088 mg/l |
| 23 Oct 2024, 10:02 | 0.3 | 0.3 mg/l |
| 24 Sep 2024, 10:25 | 0.22 | 0.22 mg/l |
| 22 Aug 2024, 09:55 | 0.42 | 0.42 mg/l |
| 17 Jul 2024, 09:22 | 0.13 | 0.13 mg/l |
| 17 Jun 2024, 13:25 | 0.32 | 0.32 mg/l |
| 14 May 2024, 13:07 | 0.24 | 0.24 mg/l |
| 17 Apr 2024, 10:27 | 0.21 | 0.21 mg/l |
| 27 Mar 2024, 10:24 | 0.46 | 0.46 mg/l |
| 19 Feb 2024, 13:18 | 0.088 | 0.088 mg/l |
| 26 Jan 2024, 10:11 | 0.024 | 0.024 mg/l |
| 5 Dec 2023, 13:36 | 0.055 | 0.055 mg/l |
| 21 Nov 2023, 11:31 | 0.1 | 0.1 mg/l |
| 16 Oct 2023, 10:01 | 0.12 | 0.12 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
608 µS/cm
Sampled 12 Aug 2026, 50 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 11:01 | 608 | 608 µS/cm |
| 6 Jul 2026, 10:03 | 545 | 545 µS/cm |
| 8 Jun 2026, 11:31 | 378 | 378 µS/cm |
| 1 Jun 2026, 09:46 | 577 | 577 µS/cm |
| 20 May 2026, 10:47 | 324 | 324 µS/cm |
| 27 Apr 2026, 11:08 | 488 | 488 µS/cm |
| 19 Mar 2026, 11:10 | 493 | 493 µS/cm |
| 8 Jan 2026, 11:15 | 628 | 628 µS/cm |
| 15 Dec 2025, 11:10 | 232 | 232 µS/cm |
| 26 Nov 2025, 12:50 | 472 | 472 µS/cm |
| 19 Nov 2025, 12:53 | 495 | 495 µS/cm |
| 24 Oct 2025, 10:27 | 443 | 443 µS/cm |
| 17 Oct 2025, 09:39 | 585 | 585 µS/cm |
| 18 Aug 2025, 14:24 | 651 | 651 µS/cm |
| 10 Jul 2025, 13:39 | 609 | 609 µS/cm |
| 16 Jun 2025, 14:49 | 630 | 630 µS/cm |
| 7 May 2025, 12:29 | 612 | 612 µS/cm |
| 10 Apr 2025, 12:46 | 648 | 648 µS/cm |
| 27 Mar 2025, 11:49 | 621 | 621 µS/cm |
| 30 Jan 2025, 12:21 | 540 | 540 µS/cm |
| 11 Dec 2024, 13:52 | 483 | 483 µS/cm |
| 25 Nov 2024, 10:59 | 426 | 426 µS/cm |
| 23 Oct 2024, 10:02 | 473 | 473 µS/cm |
| 24 Sep 2024, 10:25 | 472 | 472 µS/cm |
| 22 Aug 2024, 09:55 | 551 | 551 µS/cm |
| 17 Jul 2024, 09:22 | 398 | 398 µS/cm |
| 17 Jun 2024, 13:25 | 434 | 434 µS/cm |
| 14 May 2024, 13:07 | 548 | 548 µS/cm |
| 17 Apr 2024, 10:27 | 439 | 439 µS/cm |
| 27 Mar 2024, 10:24 | 508 | 508 µS/cm |
| 19 Feb 2024, 13:18 | 379 | 379 µS/cm |
| 26 Jan 2024, 10:11 | 584 | 584 µS/cm |
| 5 Dec 2023, 13:36 | 394 | 394 µS/cm |
| 21 Nov 2023, 11:31 | 390 | 390 µS/cm |
| 16 Oct 2023, 10:01 | 450 | 450 µS/cm |
Everything measured here
77 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 77 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 35 | Oct 2023 – Aug 2026 | 93.8% 12 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 35 | Oct 2023 – Aug 2026 | 8.96 mg/l 12 Aug 2026 |
| Temperature of Water 0076 | River water | 35 | Oct 2023 – Aug 2026 | 17.4 °C 12 Aug 2026 |
| pH 0061 | River water | 35 | Oct 2023 – Aug 2026 | 7.92 12 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Aug 2026 | 0.044 mg/l 12 Aug 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Aug 2026 | 2.38 mg/l 12 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 34 | Oct 2023 – Aug 2026 | 0.1 mg/l 12 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 35 | Oct 2023 – Aug 2026 | 608 µS/cm 12 Aug 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 19 Mar 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 19 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Mar 2026 – Mar 2026 | 0.005 µg/l 19 Mar 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Mar 2026 – Mar 2026 | 0.0084 µg/l 19 Mar 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 19 Mar 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 19 Mar 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 19 Mar 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 19 Mar 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Mar 2026 – Mar 2026 | below 0.01 µg/l 19 Mar 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 34 | Oct 2023 – Aug 2026 | 150 mg/l 12 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Aug 2026 | 0.00115 mg/l 12 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 28 | Feb 2024 – Aug 2026 | 1.2 mg/l 12 Aug 2026 |
| Chloride 0172 | River water | 16 | Apr 2025 – Aug 2026 | 43 mg/l 12 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Aug 2026 | 0.018 mg/l 12 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Aug 2026 | 2.4 mg/l 12 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Mar 2026 – Mar 2026 | 0.0024 µg/l 19 Mar 2026 |
| Perfluorobutanoic acid 2995 | River water | 1 | Mar 2026 – Mar 2026 | 0.0022 µg/l 19 Mar 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Perfluorodecanoic acid 8892 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Mar 2026 – Mar 2026 | below 0.005 µg/l 19 Mar 2026 |
| Perfluorododecanoic acid 8894 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Mar 2026 – Mar 2026 | 0.0016 µg/l 19 Mar 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Mar 2026 – Mar 2026 | 0.0011 µg/l 19 Mar 2026 |
| Perfluorohexanoic acid 8888 | River water | 1 | Mar 2026 – Mar 2026 | 0.0027 µg/l 19 Mar 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluorononanoic acid 8891 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Mar 2026 – Mar 2026 | 0.0033 µg/l 19 Mar 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Mar 2026 – Mar 2026 | 0.0023 µg/l 19 Mar 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Mar 2026 – Mar 2026 | 0.0056 µg/l 19 Mar 2026 |
| Perfluorooctanoic acid 8890 | River water | 1 | Mar 2026 – Mar 2026 | 0.0058 µg/l 19 Mar 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Mar 2026 – Mar 2026 | below 0.0005 µg/l 19 Mar 2026 |
| Perfluoropentanoic acid 8887 | River water | 1 | Mar 2026 – Mar 2026 | 0.0026 µg/l 19 Mar 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Mar 2026 – Mar 2026 | below 0.006 µg/l 19 Mar 2026 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Mar 2026 – Mar 2026 | below 0.002 µg/l 19 Mar 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Mar 2026 – Mar 2026 | below 0.004 µg/l 19 Mar 2026 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 19 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 16 | Apr 2025 – Aug 2026 | 3.4 mg/l 12 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.