Lee above Lea Bridge Weir
EA name: LEE ABOVE LEA BRIDGE WEIR
Environment Agency sampling point TH-PLER0049 · 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
- 18 Sep 2026, 11:1913 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 9 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) · results completed 22 Sep 2026
- Where
- National Grid 535700, 186600As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Lee
- River, by the map
- River LeaPlaced on the river its name gives, 28 m from the line.
- Next gauge downstream
- Charlton On the Thames Tideway · 11 km along the river
- Nearest gauge upstream
- Lea Bridge On the River Lee · 1.0 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (34 samples)
Results here were completed a median of 9 days after the sample was taken (3 to 23 days, 13 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
85.5%
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 85.5 | 85.5% |
| 20 Aug 2026, 12:17 | 91.9 | 91.9% |
| 27 Jul 2026, 10:27 | 84.6 | 84.6% |
| 17 Jun 2026, 11:12 | 67.8 | 67.8% |
| 15 May 2026, 09:14 | 77.6 | 77.6% |
| 10 Apr 2026, 11:39 | 84 | 84% |
| 16 Mar 2026, 10:23 | 65.2 | 65.2% |
| 11 Feb 2026, 11:24 | 77.8 | 77.8% |
| 22 Jan 2026, 11:44 | 79.1 | 79.1% |
| 15 Dec 2025, 09:44 | 71.4 | 71.4% |
| 18 Nov 2025, 11:59 | 71.7 | 71.7% |
| 16 Oct 2025, 12:06 | 71.4 | 71.4% |
| 22 Sep 2025, 11:47 | 72.6 | 72.6% |
| 13 Aug 2025, 13:55 | 77.3 | 77.3% |
| 23 Jul 2025, 09:01 | 39.7 | 39.7% |
| 24 Jun 2025, 10:00 | 74.8 | 74.8% |
| 23 May 2025, 09:59 | 107.7 | 107.7% |
| 30 Apr 2025, 10:06 | 69.6 | 69.6% |
| 18 Mar 2025, 11:03 | 80.1 | 80.1% |
| 24 Feb 2025, 12:43 | 88.6 | 88.6% |
| 29 Jan 2025, 13:10 | 83.4 | 83.4% |
| 10 Dec 2024, 11:13 | 85.5 | 85.5% |
| 19 Nov 2024, 10:21 | 74.7 | 74.7% |
| 16 Oct 2024, 09:49 | 72.4 | 72.4% |
| 18 Sep 2024, 10:41 | 82.1 | 82.1% |
| 21 Aug 2024, 11:58 | 91.4 | 91.4% |
| 15 Jul 2024, 10:11 | 82.2 | 82.2% |
| 17 Jun 2024, 11:36 | 94.5 | 94.5% |
| 4 Mar 2024, 12:39 | 82.1 | 82.1% |
| 13 Feb 2024, 10:27 | 81.4 | 81.4% |
| 4 Jan 2024, 10:27 | 85 | 85% |
| 7 Dec 2023, 11:19 | 77.2 | 77.2% |
| 1 Nov 2023, 11:31 | 66.1 | 66.1% |
| 9 Oct 2023, 11:12 | 73 | 73% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.79 mg/l
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 7.79 | 7.79 mg/l |
| 20 Aug 2026, 12:17 | 7.97 | 7.97 mg/l |
| 27 Jul 2026, 10:27 | 7.35 | 7.35 mg/l |
| 17 Jun 2026, 11:12 | 6.03 | 6.03 mg/l |
| 15 May 2026, 09:14 | 7.75 | 7.75 mg/l |
| 10 Apr 2026, 11:39 | 8.45 | 8.45 mg/l |
| 16 Mar 2026, 10:23 | 7.09 | 7.09 mg/l |
| 11 Feb 2026, 11:24 | 8.56 | 8.56 mg/l |
| 22 Jan 2026, 11:44 | 8.91 | 8.91 mg/l |
| 15 Dec 2025, 09:44 | 7.57 | 7.57 mg/l |
| 18 Nov 2025, 11:59 | 7.37 | 7.37 mg/l |
| 16 Oct 2025, 12:06 | 6.81 | 6.81 mg/l |
| 22 Sep 2025, 11:47 | 6.88 | 6.88 mg/l |
| 13 Aug 2025, 13:55 | 6.6 | 6.6 mg/l |
| 23 Jul 2025, 09:01 | 3.52 | 3.52 mg/l |
| 24 Jun 2025, 10:00 | 6.68 | 6.68 mg/l |
| 23 May 2025, 09:59 | 10.3 | 10.3 mg/l |
| 30 Apr 2025, 10:06 | 6.65 | 6.65 mg/l |
| 18 Mar 2025, 11:03 | 8.94 | 8.94 mg/l |
| 24 Feb 2025, 12:43 | 9.38 | 9.38 mg/l |
| 29 Jan 2025, 13:10 | 9.74 | 9.74 mg/l |
| 10 Dec 2024, 11:13 | 9.77 | 9.77 mg/l |
| 19 Nov 2024, 10:21 | 8.01 | 8.01 mg/l |
| 16 Oct 2024, 09:49 | 7.17 | 7.17 mg/l |
| 18 Sep 2024, 10:41 | 7.6 | 7.6 mg/l |
| 21 Aug 2024, 11:58 | 8.19 | 8.19 mg/l |
| 15 Jul 2024, 10:11 | 7.52 | 7.52 mg/l |
| 17 Jun 2024, 11:36 | 8.81 | 8.81 mg/l |
| 4 Mar 2024, 12:39 | 9.34 | 9.34 mg/l |
| 13 Feb 2024, 10:27 | 9.19 | 9.19 mg/l |
| 4 Jan 2024, 10:27 | 9.58 | 9.58 mg/l |
| 7 Dec 2023, 11:19 | 8.66 | 8.66 mg/l |
| 1 Nov 2023, 11:31 | 6.59 | 6.59 mg/l |
| 9 Oct 2023, 11:12 | 6.71 | 6.71 mg/l |
Water temperature
code 0076 · °C
19.8 °C
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 19.8 | 19.8 °C |
| 20 Aug 2026, 12:17 | 22.3 | 22.3 °C |
| 27 Jul 2026, 10:27 | 22.2 | 22.2 °C |
| 17 Jun 2026, 11:12 | 21 | 21 °C |
| 15 May 2026, 09:14 | 15.3 | 15.3 °C |
| 10 Apr 2026, 11:39 | 15 | 15 °C |
| 16 Mar 2026, 10:23 | 11.5 | 11.5 °C |
| 11 Feb 2026, 11:24 | 11 | 11 °C |
| 22 Jan 2026, 11:44 | 10 | 10 °C |
| 15 Dec 2025, 09:44 | 12.6 | 12.6 °C |
| 18 Nov 2025, 11:59 | 14 | 14 °C |
| 16 Oct 2025, 12:06 | 17.5 | 17.5 °C |
| 22 Sep 2025, 11:47 | 17.8 | 17.8 °C |
| 13 Aug 2025, 13:55 | 23.1 | 23.1 °C |
| 23 Jul 2025, 09:01 | 21.1 | 21.1 °C |
| 24 Jun 2025, 10:00 | 20.8 | 20.8 °C |
| 23 May 2025, 09:59 | 17.6 | 17.6 °C |
| 30 Apr 2025, 10:06 | 17.4 | 17.4 °C |
| 18 Mar 2025, 11:03 | 10.4 | 10.4 °C |
| 24 Feb 2025, 12:43 | 12.7 | 12.7 °C |
| 29 Jan 2025, 13:10 | 8.5 | 8.5 °C |
| 10 Dec 2024, 11:13 | 9.4 | 9.4 °C |
| 19 Nov 2024, 10:21 | 12.1 | 12.1 °C |
| 16 Oct 2024, 09:49 | 15.7 | 15.7 °C |
| 18 Sep 2024, 10:41 | 19 | 19 °C |
| 21 Aug 2024, 11:58 | 20.6 | 20.6 °C |
| 15 Jul 2024, 10:11 | 19.6 | 19.6 °C |
| 17 Jun 2024, 11:36 | 18.6 | 18.6 °C |
| 4 Mar 2024, 12:39 | 9.6 | 9.6 °C |
| 13 Feb 2024, 10:27 | 9.9 | 9.9 °C |
| 4 Jan 2024, 10:27 | 10 | 10 °C |
| 7 Dec 2023, 11:19 | 10.2 | 10.2 °C |
| 1 Nov 2023, 11:31 | 15.4 | 15.4 °C |
| 9 Oct 2023, 11:12 | 19.3 | 19.3 °C |
pH
code 0061
7.47
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 7.47 | 7.47 |
| 20 Aug 2026, 12:17 | 7.35 | 7.35 |
| 27 Jul 2026, 10:27 | 7.53 | 7.53 |
| 17 Jun 2026, 11:12 | 7.3 | 7.3 |
| 15 May 2026, 09:14 | 7.49 | 7.49 |
| 10 Apr 2026, 11:39 | 7.5 | 7.5 |
| 16 Mar 2026, 10:23 | 7.25 | 7.25 |
| 11 Feb 2026, 11:24 | 7.45 | 7.45 |
| 22 Jan 2026, 11:44 | 7.64 | 7.64 |
| 15 Dec 2025, 09:44 | 7.41 | 7.41 |
| 18 Nov 2025, 11:59 | 7.33 | 7.33 |
| 16 Oct 2025, 12:06 | 7.35 | 7.35 |
| 22 Sep 2025, 11:47 | 7.34 | 7.34 |
| 13 Aug 2025, 13:55 | 7.51 | 7.51 |
| 23 Jul 2025, 09:01 | 7.34 | 7.34 |
| 24 Jun 2025, 10:00 | 7.54 | 7.54 |
| 23 May 2025, 09:59 | 7.58 | 7.58 |
| 30 Apr 2025, 10:06 | 7.43 | 7.43 |
| 18 Mar 2025, 11:03 | 7.49 | 7.49 |
| 24 Feb 2025, 12:43 | 7.81 | 7.81 |
| 29 Jan 2025, 13:10 | 7.55 | 7.55 |
| 10 Dec 2024, 11:13 | 7.47 | 7.47 |
| 19 Nov 2024, 10:21 | 7.09 | 7.09 |
| 16 Oct 2024, 09:49 | 7.28 | 7.28 |
| 18 Sep 2024, 10:41 | 7.4 | 7.4 |
| 21 Aug 2024, 11:58 | 7.49 | 7.49 |
| 15 Jul 2024, 10:11 | 7.35 | 7.35 |
| 17 Jun 2024, 11:36 | 7.6 | 7.6 |
| 4 Mar 2024, 12:39 | 7.48 | 7.48 |
| 13 Feb 2024, 10:27 | 7.67 | 7.67 |
| 4 Jan 2024, 10:27 | 7.54 | 7.54 |
| 7 Dec 2023, 11:19 | 7.34 | 7.34 |
| 1 Nov 2023, 11:31 | 7.29 | 7.29 |
| 9 Oct 2023, 11:12 | 7.41 | 7.41 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.083 mg/l
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 0.083 | 0.083 mg/l |
| 20 Aug 2026, 12:17 | 0.066 | 0.066 mg/l |
| 27 Jul 2026, 10:27 | 0.08 | 0.08 mg/l |
| 17 Jun 2026, 11:12 | 0.18 | 0.18 mg/l |
| 15 May 2026, 09:14 | 0.21 | 0.21 mg/l |
| 10 Apr 2026, 11:39 | 0.18 | 0.18 mg/l |
| 16 Mar 2026, 10:23 | 0.23 | 0.23 mg/l |
| 11 Feb 2026, 11:24 | 0.19 | 0.19 mg/l |
| 22 Jan 2026, 11:44 | 0.17 | 0.17 mg/l |
| 15 Dec 2025, 09:44 | 0.24 | 0.24 mg/l |
| 18 Nov 2025, 11:59 | 0.21 | 0.21 mg/l |
| 16 Oct 2025, 12:06 | 0.15 | 0.15 mg/l |
| 22 Sep 2025, 11:47 | 0.12 | 0.12 mg/l |
| 13 Aug 2025, 13:55 | 0.08 | 0.08 mg/l |
| 23 Jul 2025, 09:01 | 0.13 | 0.13 mg/l |
| 24 Jun 2025, 10:00 | 0.082 | 0.082 mg/l |
| 23 May 2025, 09:59 | 0.14 | 0.14 mg/l |
| 30 Apr 2025, 10:06 | 0.3 | 0.3 mg/l |
| 18 Mar 2025, 11:03 | 0.17 | 0.17 mg/l |
| 24 Feb 2025, 12:43 | 0.12 | 0.12 mg/l |
| 29 Jan 2025, 13:10 | 0.14 | 0.14 mg/l |
| 10 Dec 2024, 11:13 | 0.13 | 0.13 mg/l |
| 19 Nov 2024, 10:21 | 0.15 | 0.15 mg/l |
| 16 Oct 2024, 09:49 | 0.14 | 0.14 mg/l |
| 18 Sep 2024, 10:41 | 0.16 | 0.16 mg/l |
| 21 Aug 2024, 11:58 | 0.12 | 0.12 mg/l |
| 15 Jul 2024, 10:11 | 0.12 | 0.12 mg/l |
| 17 Jun 2024, 11:36 | 0.13 | 0.13 mg/l |
| 4 Mar 2024, 12:39 | 0.17 | 0.17 mg/l |
| 13 Feb 2024, 10:27 | 0.18 | 0.18 mg/l |
| 4 Jan 2024, 10:27 | 0.13 | 0.13 mg/l |
| 7 Dec 2023, 11:19 | 0.2 | 0.2 mg/l |
| 1 Nov 2023, 11:31 | 0.24 | 0.24 mg/l |
| 9 Oct 2023, 11:12 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
19.9 mg/l
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 19.9 | 19.9 mg/l |
| 20 Aug 2026, 12:17 | 17.9 | 17.9 mg/l |
| 27 Jul 2026, 10:27 | 12.9 | 12.9 mg/l |
| 17 Jun 2026, 11:12 | 16.8 | 16.8 mg/l |
| 15 May 2026, 09:14 | 15.9 | 15.9 mg/l |
| 10 Apr 2026, 11:39 | 16.9 | 16.9 mg/l |
| 16 Mar 2026, 10:23 | 15.8 | 15.8 mg/l |
| 11 Feb 2026, 11:24 | 9.74 | 9.74 mg/l |
| 22 Jan 2026, 11:44 | 10.9 | 10.9 mg/l |
| 15 Dec 2025, 09:44 | 16.9 | 16.9 mg/l |
| 18 Nov 2025, 11:59 | 16.9 | 16.9 mg/l |
| 16 Oct 2025, 12:06 | 22.9 | 22.9 mg/l |
| 22 Sep 2025, 11:47 | 21.9 | 21.9 mg/l |
| 13 Aug 2025, 13:55 | 17.9 | 17.9 mg/l |
| 23 Jul 2025, 09:01 | 14.9 | 14.9 mg/l |
| 24 Jun 2025, 10:00 | 19.9 | 19.9 mg/l |
| 23 May 2025, 09:59 | 20.9 | 20.9 mg/l |
| 30 Apr 2025, 10:06 | 18.9 | 18.9 mg/l |
| 18 Mar 2025, 11:03 | 18.9 | 18.9 mg/l |
| 24 Feb 2025, 12:43 | 8.04 | 8.04 mg/l |
| 29 Jan 2025, 13:10 | 9.94 | 9.94 mg/l |
| 10 Dec 2024, 11:13 | 10.9 | 10.9 mg/l |
| 19 Nov 2024, 10:21 | 11.9 | 11.9 mg/l |
| 16 Oct 2024, 09:49 | 13.9 | 13.9 mg/l |
| 18 Sep 2024, 10:41 | 20.9 | 20.9 mg/l |
| 21 Aug 2024, 11:58 | 19.9 | 19.9 mg/l |
| 15 Jul 2024, 10:11 | 18.9 | 18.9 mg/l |
| 17 Jun 2024, 11:36 | 19.9 | 19.9 mg/l |
| 4 Mar 2024, 12:39 | 11.9 | 11.9 mg/l |
| 13 Feb 2024, 10:27 | 12.9 | 12.9 mg/l |
| 4 Jan 2024, 10:27 | 9.85 | 9.85 mg/l |
| 7 Dec 2023, 11:19 | 16.9 | 16.9 mg/l |
| 1 Nov 2023, 11:31 | 12.9 | 12.9 mg/l |
| 9 Oct 2023, 11:12 | 16.9 | 16.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.84 mg/l
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 0.84 | 0.84 mg/l |
| 20 Aug 2026, 12:17 | 0.75 | 0.75 mg/l |
| 27 Jul 2026, 10:27 | 1.1 | 1.1 mg/l |
| 17 Jun 2026, 11:12 | 0.74 | 0.74 mg/l |
| 15 May 2026, 09:14 | 0.6 | 0.6 mg/l |
| 10 Apr 2026, 11:39 | 0.53 | 0.53 mg/l |
| 16 Mar 2026, 10:23 | 0.55 | 0.55 mg/l |
| 11 Feb 2026, 11:24 | 0.48 | 0.48 mg/l |
| 22 Jan 2026, 11:44 | 0.4 | 0.4 mg/l |
| 15 Dec 2025, 09:44 | 0.54 | 0.54 mg/l |
| 18 Nov 2025, 11:59 | 0.66 | 0.66 mg/l |
| 16 Oct 2025, 12:06 | 0.82 | 0.82 mg/l |
| 22 Sep 2025, 11:47 | 0.77 | 0.77 mg/l |
| 13 Aug 2025, 13:55 | 0.6 | 0.6 mg/l |
| 23 Jul 2025, 09:01 | 0.6 | 0.6 mg/l |
| 24 Jun 2025, 10:00 | 0.52 | 0.52 mg/l |
| 23 May 2025, 09:59 | 0.66 | 0.66 mg/l |
| 30 Apr 2025, 10:06 | 0.58 | 0.58 mg/l |
| 18 Mar 2025, 11:03 | 0.42 | 0.42 mg/l |
| 24 Feb 2025, 12:43 | 0.21 | 0.21 mg/l |
| 29 Jan 2025, 13:10 | 0.38 | 0.38 mg/l |
| 10 Dec 2024, 11:13 | 0.33 | 0.33 mg/l |
| 19 Nov 2024, 10:21 | 0.36 | 0.36 mg/l |
| 16 Oct 2024, 09:49 | 0.42 | 0.42 mg/l |
| 18 Sep 2024, 10:41 | 0.56 | 0.56 mg/l |
| 21 Aug 2024, 11:58 | 0.48 | 0.48 mg/l |
| 15 Jul 2024, 10:11 | 0.53 | 0.53 mg/l |
| 17 Jun 2024, 11:36 | 0.51 | 0.51 mg/l |
| 4 Mar 2024, 12:39 | 0.38 | 0.38 mg/l |
| 13 Feb 2024, 10:27 | 0.51 | 0.51 mg/l |
| 4 Jan 2024, 10:27 | 0.33 | 0.33 mg/l |
| 7 Dec 2023, 11:19 | 0.6 | 0.6 mg/l |
| 1 Nov 2023, 11:31 | 0.61 | 0.61 mg/l |
| 9 Oct 2023, 11:12 | 0.61 | 0.61 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1074 µS/cm
Sampled 18 Sep 2026, 13 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 11:19 | 1074 | 1074 µS/cm |
| 20 Aug 2026, 12:17 | 1049 | 1049 µS/cm |
| 27 Jul 2026, 10:27 | 1066 | 1066 µS/cm |
| 17 Jun 2026, 11:12 | 1018 | 1018 µS/cm |
| 15 May 2026, 09:14 | 942 | 942 µS/cm |
| 10 Apr 2026, 11:39 | 998 | 998 µS/cm |
| 16 Mar 2026, 10:23 | 863 | 863 µS/cm |
| 11 Feb 2026, 11:24 | 699 | 699 µS/cm |
| 22 Jan 2026, 11:44 | 698 | 698 µS/cm |
| 15 Dec 2025, 09:44 | 984 | 984 µS/cm |
| 18 Nov 2025, 11:59 | 981 | 981 µS/cm |
| 16 Oct 2025, 12:06 | 1103 | 1103 µS/cm |
| 22 Sep 2025, 11:47 | 1064 | 1064 µS/cm |
| 13 Aug 2025, 13:55 | 996 | 996 µS/cm |
| 23 Jul 2025, 09:01 | 923 | 923 µS/cm |
| 24 Jun 2025, 10:00 | 1013 | 1013 µS/cm |
| 23 May 2025, 09:59 | 1037 | 1037 µS/cm |
| 30 Apr 2025, 10:06 | 969 | 969 µS/cm |
| 18 Mar 2025, 11:03 | 960 | 960 µS/cm |
| 24 Feb 2025, 12:43 | 711 | 711 µS/cm |
| 29 Jan 2025, 13:10 | 752 | 752 µS/cm |
| 10 Dec 2024, 11:13 | 726 | 726 µS/cm |
| 19 Nov 2024, 10:21 | 665 | 665 µS/cm |
| 16 Oct 2024, 09:49 | 758 | 758 µS/cm |
| 18 Sep 2024, 10:41 | 1022 | 1022 µS/cm |
| 21 Aug 2024, 11:58 | 1009 | 1009 µS/cm |
| 15 Jul 2024, 10:11 | 968 | 968 µS/cm |
| 17 Jun 2024, 11:36 | 938 | 938 µS/cm |
| 4 Mar 2024, 12:39 | 751 | 751 µS/cm |
| 13 Feb 2024, 10:27 | 845 | 845 µS/cm |
| 4 Jan 2024, 10:27 | 690 | 690 µS/cm |
| 7 Dec 2023, 11:19 | 893 | 893 µS/cm |
| 1 Nov 2023, 11:31 | 826 | 826 µS/cm |
| 9 Oct 2023, 11:12 | 993 | 993 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 | 34 | Oct 2023 – Sep 2026 | 85.5% 18 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 7.79 mg/l 18 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 19.8 °C 18 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 7.47 18 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 34 | Oct 2023 – Sep 2026 | 0.083 mg/l 18 Sep 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Sep 2026 | 19.9 mg/l 18 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 34 | Oct 2023 – Sep 2026 | 0.84 mg/l 18 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 1074 µS/cm 18 Sep 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Jun 2024 – Jun 2024 | below 0.004 µg/l 17 Jun 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Jun 2024 – Jun 2024 | below 0.005 µg/l 17 Jun 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Jun 2024 – Jun 2024 | 0.0013 µg/l 17 Jun 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2023 – Sep 2026 | 160 mg/l 18 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 34 | Oct 2023 – Sep 2026 | 0.00093 mg/l 18 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.8 mg/l 15 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Sep 2026 | 0.062 mg/l 18 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Sep 2026 | 20 mg/l 18 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Jun 2024 – Jun 2024 | 0.00084 µg/l 17 Jun 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jun 2024 – Jun 2024 | 0.007 µg/l 17 Jun 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jun 2024 – Jun 2024 | 0.0073 µg/l 17 Jun 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Jun 2024 – Jun 2024 | 0.0013 µg/l 17 Jun 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Jun 2024 – Jun 2024 | below 0.005 µg/l 17 Jun 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jun 2024 – Jun 2024 | 0.0036 µg/l 17 Jun 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Jun 2024 – Jun 2024 | 0.001 µg/l 17 Jun 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jun 2024 – Jun 2024 | 0.0041 µg/l 17 Jun 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Jun 2024 – Jun 2024 | 0.0088 µg/l 17 Jun 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Jun 2024 – Jun 2024 | below 0.0005 µg/l 17 Jun 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Jun 2024 – Jun 2024 | below 0.001 µg/l 17 Jun 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jun 2024 – Jun 2024 | 0.0034 µg/l 17 Jun 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jun 2024 – Jun 2024 | 0.004 µg/l 17 Jun 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Jun 2024 – Jun 2024 | 0.0054 µg/l 17 Jun 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Jun 2024 – Jun 2024 | 0.00069 µg/l 17 Jun 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jun 2024 – Jun 2024 | 0.01 µg/l 17 Jun 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Jun 2024 – Jun 2024 | below 0.006 µg/l 17 Jun 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Jun 2024 – Jun 2024 | below 0.005 µg/l 17 Jun 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Jun 2024 – Jun 2024 | below 0.004 µg/l 17 Jun 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Jun 2024 – Jun 2024 | below 0.002 µg/l 17 Jun 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.