Calder at Methley Bridge
EA name: CALDER AT METHLEY BRIDGE
Environment Agency sampling point NE-49500343 · 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
- 7 Sep 2026, 12:1624 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 4 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (UK govt policy - not GQA or RE)
- Where
- National Grid 440968, 425810As published, to the nearest 1 m. Open in a map
- River, by its own name
- Calder
- River, by the map
- River CalderPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Castleford On the River Aire · 1.7 km along the river
- Nearest gauge upstream
- Methley On the River Calder · 0.2 km along the river
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (18 samples)
Monitoring (national agency policy) (10 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
83.3%
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 83.3 | 83.3% |
| 4 Aug 2026, 13:16 | 89.8 | 89.8% |
| 17 Jul 2026, 10:53 | 85.6 | 85.6% |
| 24 Jun 2026, 14:50 | 114.1 | 114.1% |
| 12 May 2026, 10:58 | 89.7 | 89.7% |
| 16 Apr 2026, 14:07 | 98.8 | 98.8% |
| 12 Mar 2026, 13:46 | 96.7 | 96.7% |
| 6 Feb 2026, 14:39 | 92.7 | 92.7% |
| 9 Jan 2026, 11:42 | 94.7 | 94.7% |
| 12 Dec 2025, 13:39 | 96.4 | 96.4% |
| 28 Nov 2025, 11:40 | 94.1 | 94.1% |
| 14 Nov 2025, 13:00 | 92.7 | 92.7% |
| 31 Oct 2025, 12:37 | 91.6 | 91.6% |
| 3 Sep 2025, 13:24 | 87.8 | 87.8% |
| 5 Aug 2025, 11:57 | 94.9 | 94.9% |
| 10 Jul 2025, 11:43 | 105.8 | 105.8% |
| 19 Jun 2025, 11:39 | 91.6 | 91.6% |
| 28 May 2025, 13:13 | 90.8 | 90.8% |
| 4 Mar 2025, 12:04 | 96.6 | 96.6% |
| 25 Feb 2025, 14:23 | 89.4 | 89.4% |
| 29 Jan 2025, 11:48 | 96.4 | 96.4% |
| 10 Dec 2024, 11:24 | 93.4 | 93.4% |
| 22 Nov 2024, 10:37 | 99 | 99% |
| 15 Oct 2024, 13:31 | 91.5 | 91.5% |
| 19 Sep 2024, 11:48 | 86.6 | 86.6% |
| 22 Aug 2024, 12:17 | 86.7 | 86.7% |
| 15 Jul 2024, 12:19 | 87.6 | 87.6% |
| 15 Apr 2024, 12:30 | 87.9 | 87.9% |
| 12 Mar 2024, 10:44 | 85 | 85% |
| 5 Feb 2024, 11:31 | 91.9 | 91.9% |
| 11 Jan 2024, 11:22 | 89.8 | 89.8% |
| 11 Dec 2023, 12:32 | 95.3 | 95.3% |
| 13 Nov 2023, 13:47 | 95.8 | 95.8% |
| 4 Oct 2023, 12:42 | 91.4 | 91.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.93 mg/l
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 7.93 | 7.93 mg/l |
| 4 Aug 2026, 13:16 | 7.97 | 7.97 mg/l |
| 17 Jul 2026, 10:53 | 7.53 | 7.53 mg/l |
| 24 Jun 2026, 14:50 | 9.4 | 9.4 mg/l |
| 12 May 2026, 10:58 | 9.59 | 9.59 mg/l |
| 16 Apr 2026, 14:07 | 10.6 | 10.6 mg/l |
| 12 Mar 2026, 13:46 | 10.9 | 10.9 mg/l |
| 6 Feb 2026, 14:39 | 11.5 | 11.5 mg/l |
| 9 Jan 2026, 11:42 | 12.4 | 12.4 mg/l |
| 12 Dec 2025, 13:39 | 11.2 | 11.2 mg/l |
| 28 Nov 2025, 11:40 | 11.2 | 11.2 mg/l |
| 14 Nov 2025, 13:00 | 10.2 | 10.2 mg/l |
| 31 Oct 2025, 12:37 | 10.3 | 10.3 mg/l |
| 3 Sep 2025, 13:24 | 8.31 | 8.31 mg/l |
| 5 Aug 2025, 11:57 | 8.91 | 8.91 mg/l |
| 10 Jul 2025, 11:43 | 9.34 | 9.34 mg/l |
| 19 Jun 2025, 11:39 | 8.07 | 8.07 mg/l |
| 28 May 2025, 13:13 | 8.94 | 8.94 mg/l |
| 4 Mar 2025, 12:04 | 11.5 | 11.5 mg/l |
| 25 Feb 2025, 14:23 | 10.5 | 10.5 mg/l |
| 29 Jan 2025, 11:48 | 11.6 | 11.6 mg/l |
| 10 Dec 2024, 11:24 | 11.2 | 11.2 mg/l |
| 22 Nov 2024, 10:37 | 12.6 | 12.6 mg/l |
| 15 Oct 2024, 13:31 | 10.2 | 10.2 mg/l |
| 19 Sep 2024, 11:48 | 8.75 | 8.75 mg/l |
| 22 Aug 2024, 12:17 | 8.34 | 8.34 mg/l |
| 15 Jul 2024, 12:19 | 8.24 | 8.24 mg/l |
| 15 Apr 2024, 12:30 | 9.72 | 9.72 mg/l |
| 12 Mar 2024, 10:44 | 10.2 | 10.2 mg/l |
| 5 Feb 2024, 11:31 | 10.7 | 10.7 mg/l |
| 11 Jan 2024, 11:22 | 11.1 | 11.1 mg/l |
| 11 Dec 2023, 12:32 | 11.3 | 11.3 mg/l |
| 13 Nov 2023, 13:47 | 11 | 11 mg/l |
| 4 Oct 2023, 12:42 | 9.33 | 9.33 mg/l |
Water temperature
code 0076 · °C
17.6 °C
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 17.6 | 17.6 °C |
| 4 Aug 2026, 13:16 | 21.1 | 21.1 °C |
| 17 Jul 2026, 10:53 | 21.5 | 21.5 °C |
| 24 Jun 2026, 14:50 | 25 | 25 °C |
| 12 May 2026, 10:58 | 12.2 | 12.2 °C |
| 16 Apr 2026, 14:07 | 12 | 12 °C |
| 12 Mar 2026, 13:46 | 10 | 10 °C |
| 6 Feb 2026, 14:39 | 6.2 | 6.2 °C |
| 9 Jan 2026, 11:42 | 3.8 | 3.8 °C |
| 12 Dec 2025, 13:39 | 8.8 | 8.8 °C |
| 28 Nov 2025, 11:40 | 7.6 | 7.6 °C |
| 14 Nov 2025, 13:00 | 11 | 11 °C |
| 31 Oct 2025, 12:37 | 10 | 10 °C |
| 3 Sep 2025, 13:24 | 17.9 | 17.9 °C |
| 5 Aug 2025, 11:57 | 18.3 | 18.3 °C |
| 10 Jul 2025, 11:43 | 21.4 | 21.4 °C |
| 19 Jun 2025, 11:39 | 21.5 | 21.5 °C |
| 28 May 2025, 13:13 | 16 | 16 °C |
| 4 Mar 2025, 12:04 | 7.8 | 7.8 °C |
| 25 Feb 2025, 14:23 | 8.4 | 8.4 °C |
| 29 Jan 2025, 11:48 | 7.4 | 7.4 °C |
| 10 Dec 2024, 11:24 | 7.6 | 7.6 °C |
| 22 Nov 2024, 10:37 | 5.2 | 5.2 °C |
| 15 Oct 2024, 13:31 | 10.6 | 10.6 °C |
| 19 Sep 2024, 11:48 | 14.8 | 14.8 °C |
| 22 Aug 2024, 12:17 | 17.1 | 17.1 °C |
| 15 Jul 2024, 12:19 | 18.2 | 18.2 °C |
| 15 Apr 2024, 12:30 | 10.8 | 10.8 °C |
| 12 Mar 2024, 10:44 | 7.4 | 7.4 °C |
| 5 Feb 2024, 11:31 | 8.8 | 8.8 °C |
| 11 Jan 2024, 11:22 | 6.1 | 6.1 °C |
| 11 Dec 2023, 12:32 | 7.9 | 7.9 °C |
| 13 Nov 2023, 13:47 | 9.3 | 9.3 °C |
| 4 Oct 2023, 12:42 | 14.3 | 14.3 °C |
pH
code 0061
7.53
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 7.53 | 7.53 |
| 4 Aug 2026, 13:16 | 7.59 | 7.59 |
| 17 Jul 2026, 10:53 | 7.61 | 7.61 |
| 24 Jun 2026, 14:50 | 7.85 | 7.85 |
| 12 May 2026, 10:58 | 7.72 | 7.72 |
| 16 Apr 2026, 14:07 | 7.6 | 7.6 |
| 12 Mar 2026, 13:46 | 7.68 | 7.68 |
| 6 Feb 2026, 14:39 | 7.57 | 7.57 |
| 9 Jan 2026, 11:42 | 7.63 | 7.63 |
| 12 Dec 2025, 13:39 | 7.59 | 7.59 |
| 28 Nov 2025, 11:40 | 7.43 | 7.43 |
| 14 Nov 2025, 13:00 | 7.66 | 7.66 |
| 31 Oct 2025, 12:37 | 7.49 | 7.49 |
| 3 Sep 2025, 13:24 | 7.55 | 7.55 |
| 5 Aug 2025, 11:57 | 7.74 | 7.74 |
| 10 Jul 2025, 11:43 | 7.69 | 7.69 |
| 19 Jun 2025, 11:39 | 7.59 | 7.59 |
| 28 May 2025, 13:13 | 7.58 | 7.58 |
| 4 Mar 2025, 12:04 | 7.58 | 7.58 |
| 25 Feb 2025, 14:23 | 7.47 | 7.47 |
| 29 Jan 2025, 11:48 | 7.63 | 7.63 |
| 10 Dec 2024, 11:24 | 7.48 | 7.48 |
| 22 Nov 2024, 10:37 | 7.44 | 7.44 |
| 15 Oct 2024, 13:31 | 7.47 | 7.47 |
| 19 Sep 2024, 11:48 | 7.4 | 7.4 |
| 22 Aug 2024, 12:17 | 7.51 | 7.51 |
| 15 Jul 2024, 12:19 | 7.39 | 7.39 |
| 15 Apr 2024, 12:30 | 7.53 | 7.53 |
| 12 Mar 2024, 10:44 | 7.29 | 7.29 |
| 5 Feb 2024, 11:31 | 7.52 | 7.52 |
| 11 Jan 2024, 11:22 | 7.4 | 7.4 |
| 11 Dec 2023, 12:32 | 7.29 | 7.29 |
| 13 Nov 2023, 13:47 | 7.6 | 7.6 |
| 4 Oct 2023, 12:42 | 7.29 | 7.29 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.23 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 0.23 | 0.23 mg/l |
| 4 Aug 2026, 13:16 | 0.27 | 0.27 mg/l |
| 17 Jul 2026, 10:53 | 0.21 | 0.21 mg/l |
| 24 Jun 2026, 14:50 | 0.12 | 0.12 mg/l |
| 12 May 2026, 10:58 | 0.19 | 0.19 mg/l |
| 16 Apr 2026, 14:07 | 0.19 | 0.19 mg/l |
| 12 Mar 2026, 13:46 | 0.2 | 0.2 mg/l |
| 6 Feb 2026, 14:39 | 0.59 | 0.59 mg/l |
| 9 Jan 2026, 11:42 | 0.41 | 0.41 mg/l |
| 12 Dec 2025, 13:39 | 0.095 | 0.095 mg/l |
| 28 Nov 2025, 11:40 | 0.13 | 0.13 mg/l |
| 14 Nov 2025, 13:00 | 0.18 | 0.18 mg/l |
| 31 Oct 2025, 12:37 | 0.11 | 0.11 mg/l |
| 3 Sep 2025, 13:24 | 0.24 | 0.24 mg/l |
| 5 Aug 2025, 11:57 | 0.064 | 0.064 mg/l |
| 10 Jul 2025, 11:43 | 0.41 | 0.41 mg/l |
| 19 Jun 2025, 11:39 | 0.34 | 0.34 mg/l |
| 28 May 2025, 13:13 | 0.34 | 0.34 mg/l |
| 4 Mar 2025, 12:04 | 0.26 | 0.26 mg/l |
| 25 Feb 2025, 14:23 | 0.51 | 0.51 mg/l |
| 29 Jan 2025, 11:48 | 0.19 | 0.19 mg/l |
| 10 Dec 2024, 11:24 | 0.13 | 0.13 mg/l |
| 22 Nov 2024, 10:37 | 0.18 | 0.18 mg/l |
| 15 Oct 2024, 13:31 | 0.25 | 0.25 mg/l |
| 19 Sep 2024, 11:48 | 0.21 | 0.21 mg/l |
| 22 Aug 2024, 12:17 | 0.22 | 0.22 mg/l |
| 15 Jul 2024, 12:19 | 0.27 | 0.27 mg/l |
| 12 Mar 2024, 10:44 | 0.48 | 0.48 mg/l |
| 5 Feb 2024, 11:31 | 0.34 | 0.34 mg/l |
| 11 Jan 2024, 11:22 | 0.55 | 0.55 mg/l |
| 11 Dec 2023, 12:32 | 0.15 | 0.15 mg/l |
| 13 Nov 2023, 13:47 | 0.34 | 0.34 mg/l |
| 4 Oct 2023, 12:42 | 0.26 | 0.26 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.62 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 7.62 | 7.62 mg/l |
| 4 Aug 2026, 13:16 | 9.86 | 9.86 mg/l |
| 17 Jul 2026, 10:53 | 8.46 | 8.46 mg/l |
| 24 Jun 2026, 14:50 | 7.52 | 7.52 mg/l |
| 12 May 2026, 10:58 | 7.62 | 7.62 mg/l |
| 16 Apr 2026, 14:07 | 5.84 | 5.84 mg/l |
| 12 Mar 2026, 13:46 | 6.12 | 6.12 mg/l |
| 6 Feb 2026, 14:39 | 4.13 | 4.13 mg/l |
| 9 Jan 2026, 11:42 | 6.66 | 6.66 mg/l |
| 12 Dec 2025, 13:39 | 4.16 | 4.16 mg/l |
| 28 Nov 2025, 11:40 | 5.06 | 5.06 mg/l |
| 14 Nov 2025, 13:00 | 3.36 | 3.36 mg/l |
| 31 Oct 2025, 12:37 | 4.45 | 4.45 mg/l |
| 3 Sep 2025, 13:24 | 11 | 11 mg/l |
| 5 Aug 2025, 11:57 | 11 | 11 mg/l |
| 10 Jul 2025, 11:43 | 9.28 | 9.28 mg/l |
| 19 Jun 2025, 11:39 | 7.61 | 7.61 mg/l |
| 28 May 2025, 13:13 | 9.77 | 9.77 mg/l |
| 4 Mar 2025, 12:04 | 6.32 | 6.32 mg/l |
| 25 Feb 2025, 14:23 | 4.37 | 4.37 mg/l |
| 29 Jan 2025, 11:48 | 3.33 | 3.33 mg/l |
| 10 Dec 2024, 11:24 | 4.15 | 4.15 mg/l |
| 22 Nov 2024, 10:37 | 6.75 | 6.75 mg/l |
| 15 Oct 2024, 13:31 | 5.81 | 5.81 mg/l |
| 19 Sep 2024, 11:48 | 7.63 | 7.63 mg/l |
| 22 Aug 2024, 12:17 | 8.12 | 8.12 mg/l |
| 15 Jul 2024, 12:19 | 4.81 | 4.81 mg/l |
| 12 Mar 2024, 10:44 | 3.22 | 3.22 mg/l |
| 5 Feb 2024, 11:31 | 3.9 | 3.9 mg/l |
| 11 Jan 2024, 11:22 | 4.69 | 4.69 mg/l |
| 11 Dec 2023, 12:32 | 1.97 | 1.97 mg/l |
| 13 Nov 2023, 13:47 | 3.72 | 3.72 mg/l |
| 4 Oct 2023, 12:42 | 3.51 | 3.51 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 7 Sep 2026, 24 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 0.11 | 0.11 mg/l |
| 4 Aug 2026, 13:16 | 0.11 | 0.11 mg/l |
| 17 Jul 2026, 10:53 | 0.11 | 0.11 mg/l |
| 24 Jun 2026, 14:50 | 0.1 | 0.1 mg/l |
| 12 May 2026, 10:58 | 0.1 | 0.1 mg/l |
| 16 Apr 2026, 14:07 | 0.074 | 0.074 mg/l |
| 12 Mar 2026, 13:46 | 0.061 | 0.061 mg/l |
| 6 Feb 2026, 14:39 | 0.11 | 0.11 mg/l |
| 9 Jan 2026, 11:42 | 0.076 | 0.076 mg/l |
| 12 Dec 2025, 13:39 | 0.049 | 0.049 mg/l |
| 28 Nov 2025, 11:40 | 0.053 | 0.053 mg/l |
| 14 Nov 2025, 13:00 | 0.08 | 0.08 mg/l |
| 31 Oct 2025, 12:37 | 0.061 | 0.061 mg/l |
| 3 Sep 2025, 13:24 | 0.14 | 0.14 mg/l |
| 5 Aug 2025, 11:57 | 0.13 | 0.13 mg/l |
| 10 Jul 2025, 11:43 | 0.23 | 0.23 mg/l |
| 19 Jun 2025, 11:39 | 0.21 | 0.21 mg/l |
| 28 May 2025, 13:13 | 0.11 | 0.11 mg/l |
| 4 Mar 2025, 12:04 | 0.087 | 0.087 mg/l |
| 25 Feb 2025, 14:23 | 0.096 | 0.096 mg/l |
| 29 Jan 2025, 11:48 | 0.07 | 0.07 mg/l |
| 10 Dec 2024, 11:24 | 0.096 | 0.096 mg/l |
| 22 Nov 2024, 10:37 | 0.64 | 0.64 mg/l |
| 15 Oct 2024, 13:31 | 0.29 | 0.29 mg/l |
| 19 Sep 2024, 11:48 | 0.53 | 0.53 mg/l |
| 22 Aug 2024, 12:17 | 0.55 | 0.55 mg/l |
| 15 Jul 2024, 12:19 | 0.3 | 0.3 mg/l |
| 12 Mar 2024, 10:44 | 0.18 | 0.18 mg/l |
| 5 Feb 2024, 11:31 | 0.23 | 0.23 mg/l |
| 11 Jan 2024, 11:22 | 0.28 | 0.28 mg/l |
| 11 Dec 2023, 12:32 | 0.059 | 0.059 mg/l |
| 13 Nov 2023, 13:47 | 0.19 | 0.19 mg/l |
| 4 Oct 2023, 12:42 | 0.26 | 0.26 mg/l |
Turbidity
code 6396 · NTU
2.7 NTU
Sampled 7 Sep 2026, 24 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 2.7 | 2.7 NTU |
| 4 Aug 2026, 13:16 | 1.9 | 1.9 NTU |
| 17 Jul 2026, 10:53 | 4.3 | 4.3 NTU |
| 24 Jun 2026, 14:50 | 3.8 | 3.8 NTU |
| 12 May 2026, 10:58 | 2.5 | 2.5 NTU |
| 16 Apr 2026, 14:07 | 3.4 | 3.4 NTU |
| 12 Mar 2026, 13:46 | 4.7 | 4.7 NTU |
| 6 Feb 2026, 14:39 | 29 | 29 NTU |
| 9 Jan 2026, 11:42 | 5.8 | 5.8 NTU |
| 12 Dec 2025, 13:39 | 4.6 | 4.6 NTU |
| 28 Nov 2025, 11:40 | 3.7 | 3.7 NTU |
| 14 Nov 2025, 13:00 | 8.8 | 8.8 NTU |
| 31 Oct 2025, 12:37 | 3.8 | 3.8 NTU |
| 12 Mar 2024, 10:44 | 10 | 10 NTU |
| 5 Feb 2024, 11:31 | 4.7 | 4.7 NTU |
| 11 Jan 2024, 11:22 | 4.8 | 4.8 NTU |
| 11 Dec 2023, 12:32 | 43 | 43 NTU |
| 13 Nov 2023, 13:47 | 4.8 | 4.8 NTU |
| 4 Oct 2023, 12:42 | 11 | 11 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
536 µS/cm
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 12:16 | 536 | 536 µS/cm |
| 4 Aug 2026, 13:16 | 669 | 669 µS/cm |
| 17 Jul 2026, 10:53 | 701 | 701 µS/cm |
| 24 Jun 2026, 14:50 | 645 | 645 µS/cm |
| 12 May 2026, 10:58 | 659 | 659 µS/cm |
| 16 Apr 2026, 14:07 | 518 | 518 µS/cm |
| 12 Mar 2026, 13:46 | 535 | 535 µS/cm |
| 6 Feb 2026, 14:39 | 425 | 425 µS/cm |
| 9 Jan 2026, 11:42 | 802 | 802 µS/cm |
| 12 Dec 2025, 13:39 | 336 | 336 µS/cm |
| 28 Nov 2025, 11:40 | 411 | 411 µS/cm |
| 14 Nov 2025, 13:00 | 323 | 323 µS/cm |
| 31 Oct 2025, 12:37 | 345 | 345 µS/cm |
| 3 Sep 2025, 13:24 | 782 | 782 µS/cm |
| 5 Aug 2025, 11:57 | 772 | 772 µS/cm |
| 10 Jul 2025, 11:43 | 647 | 647 µS/cm |
| 19 Jun 2025, 11:39 | 625 | 625 µS/cm |
| 28 May 2025, 13:13 | 752 | 752 µS/cm |
| 4 Mar 2025, 12:04 | 518 | 518 µS/cm |
| 25 Feb 2025, 14:23 | 457 | 457 µS/cm |
| 29 Jan 2025, 11:48 | 414 | 414 µS/cm |
| 10 Dec 2024, 11:24 | 373 | 373 µS/cm |
| 22 Nov 2024, 10:37 | 573 | 573 µS/cm |
| 15 Oct 2024, 13:31 | 470 | 470 µS/cm |
| 19 Sep 2024, 11:48 | 562 | 562 µS/cm |
| 22 Aug 2024, 12:17 | 675 | 675 µS/cm |
| 15 Jul 2024, 12:19 | 500 | 500 µS/cm |
| 15 Apr 2024, 12:30 | 421 | 421 µS/cm |
| 12 Mar 2024, 10:44 | 416 | 416 µS/cm |
| 5 Feb 2024, 11:31 | 417 | 417 µS/cm |
| 11 Jan 2024, 11:22 | 484 | 484 µS/cm |
| 11 Dec 2023, 12:32 | 223 | 223 µS/cm |
| 13 Nov 2023, 13:47 | 397 | 397 µS/cm |
| 4 Oct 2023, 12:42 | 334 | 334 µS/cm |
Everything measured here
97 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 97 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 83.3% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 7.93 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 17.6 °C 7 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 7.53 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2023 – Sep 2026 | 0.23 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Sep 2026 | 7.62 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Sep 2026 | 0.11 mg/l 7 Sep 2026 |
| Turbidity 6396 | River water | 19 | Oct 2023 – Sep 2026 | 2.7 NTU 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 536 µS/cm 7 Sep 2026 |
| 1,2,3-Trichlorobenzene 9050 | River water | 6 | Oct 2023 – Mar 2024 | below 0.01 µg/l 12 Mar 2024 |
| 1,2,4-Trichlorobenzene 9051 | River water | 6 | Oct 2023 – Mar 2024 | below 0.01 µg/l 12 Mar 2024 |
| 1,3,5-Trichlorobenzene 9052 | River water | 6 | Oct 2023 – Mar 2024 | below 0.01 µg/l 12 Mar 2024 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Jul 2024 – Sep 2024 | below 0.004 µg/l 19 Sep 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Jul 2024 – Sep 2024 | below 0.005 µg/l 19 Sep 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Jul 2024 – Sep 2024 | 0.0014 µg/l 19 Sep 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Aldrin 0483 | River water | 6 | Oct 2023 – Mar 2024 | below 0.001 µg/l 12 Mar 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jul 2024 – Jun 2026 | 71 mg/l 24 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Sep 2026 | 0.00252 mg/l 7 Sep 2026 |
| Arsenic, Dissolved 6045 | River water | 24 | Oct 2023 – Sep 2026 | 1.1 µg/l 7 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jul 2024 – Jun 2026 | below 3 mg/l 24 Jun 2026 |
| Boron, Dissolved 9447 | River water | 24 | Oct 2023 – Sep 2026 | below 100 µg/l 7 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 24 | Oct 2023 – Sep 2026 | below 0.01 µg/l 7 Sep 2026 |
| Calcium, Dissolved 0239 | River water | 6 | Oct 2023 – Mar 2024 | 29 mg/l 12 Mar 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 18 | Oct 2023 – Sep 2026 | 5.3 mg/l 7 Sep 2026 |
| Chloride 0172 | River water | 19 | Oct 2023 – Sep 2026 | 51 mg/l 7 Sep 2026 |
| Chloroform :- {Trichloromethane} 3373 | River water | 6 | Oct 2023 – Mar 2024 | 0.22 µg/l 12 Mar 2024 |
| Chlorophyll : Acetone Extract 7887 | River water | 19 | Oct 2023 – Sep 2026 | 4.4 µg/l 7 Sep 2026 |
| Chromium, Dissolved 3409 | River water | 24 | Oct 2023 – Sep 2026 | below 0.5 µg/l 7 Sep 2026 |
| Copper, Dissolved 6450 | River water | 24 | Oct 2023 – Sep 2026 | 1.7 µg/l 7 Sep 2026 |
| Dieldrin 0511 | River water | 5 | Oct 2023 – Mar 2024 | below 0.002 µg/l 12 Mar 2024 |
| Endrin 0562 | River water | 5 | Oct 2023 – Mar 2024 | below 0.003 µg/l 12 Mar 2024 |
| HCH -alpha 0487 | River water | 5 | Oct 2023 – Feb 2024 | below 0.0001 µg/l 5 Feb 2024 |
| HCH -beta 0491 | River water | 6 | Oct 2023 – Mar 2024 | below 0.0001 µg/l 12 Mar 2024 |
| HCH -delta 0495 | River water | 6 | Oct 2023 – Mar 2024 | below 0.0001 µg/l 12 Mar 2024 |
| HCH -gamma :- {Lindane} 0499 | River water | 6 | Oct 2023 – Mar 2024 | 0.00023 µg/l 12 Mar 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| Iron, Dissolved 6460 | River water | 24 | Oct 2023 – Sep 2026 | 100 µg/l 7 Sep 2026 |
| Isodrin 9494 | River water | 5 | Oct 2023 – Mar 2024 | below 0.001 µg/l 12 Mar 2024 |
| Lead : BLM Bioavailable 3377 | River water | 6 | Oct 2023 – Mar 2024 | 0.08 µg/l 12 Mar 2024 |
| Lead, Dissolved 0052 | River water | 24 | Oct 2023 – Sep 2026 | 0.17 µg/l 7 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 6 | Oct 2023 – Mar 2024 | 8.5 mg/l 12 Mar 2024 |
| Manganese, Dissolved 6458 | River water | 24 | Oct 2023 – Sep 2026 | 88 µg/l 7 Sep 2026 |
| Mercury, Dissolved 0103 | River water | 24 | Oct 2023 – Sep 2026 | below 0.01 µg/l 7 Sep 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 6 | Oct 2023 – Mar 2024 | 0.77 µg/l 12 Mar 2024 |
| Nickel, Dissolved 3410 | River water | 24 | Oct 2023 – Sep 2026 | 2.7 µg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Sep 2026 | 0.076 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2023 – Sep 2026 | 7.7 mg/l 7 Sep 2026 |
| Pentachlorophenol 1085 | River water | 6 | Oct 2023 – Mar 2024 | below 0.02 µg/l 12 Mar 2024 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Jul 2024 – Sep 2024 | 0.0027 µg/l 19 Sep 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Jul 2024 – Sep 2024 | 0.0051 µg/l 19 Sep 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Jul 2024 – Sep 2024 | 0.00078 µg/l 19 Sep 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Perfluorodecanoic acid 8892 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Jul 2024 – Sep 2024 | below 0.005 µg/l 19 Sep 2024 |
| Perfluorododecanoic acid 8894 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Jul 2024 – Sep 2024 | 0.0021 µg/l 19 Sep 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Jul 2024 – Sep 2024 | 0.0012 µg/l 19 Sep 2024 |
| Perfluorohexanoic acid 8888 | River water | 2 | Jul 2024 – Sep 2024 | 0.0055 µg/l 19 Sep 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluorononanoic acid 8891 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Jul 2024 – Sep 2024 | below 0.001 µg/l 19 Sep 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Jul 2024 – Sep 2024 | 0.0017 µg/l 19 Sep 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Jul 2024 – Sep 2024 | 0.0022 µg/l 19 Sep 2024 |
| Perfluorooctanoic acid 8890 | River water | 2 | Jul 2024 – Sep 2024 | 0.0065 µg/l 19 Sep 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Jul 2024 – Sep 2024 | below 0.0005 µg/l 19 Sep 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Jul 2024 – Sep 2024 | 0.0044 µg/l 19 Sep 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Jul 2024 – Sep 2024 | below 0.006 µg/l 19 Sep 2024 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Jul 2024 – Sep 2024 | below 0.005 µg/l 19 Sep 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Jul 2024 – Sep 2024 | below 0.004 µg/l 19 Sep 2024 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Jul 2024 – Sep 2024 | below 0.002 µg/l 19 Sep 2024 |
| Phosphorus, Total as P 0348 | River water | 19 | Oct 2023 – Sep 2026 | 0.15 mg/l 7 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 24 | Oct 2023 – Sep 2026 | 7.3 mg/l 7 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 19 | Oct 2023 – Sep 2026 | 6.7 mg/l 7 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 24 | Oct 2023 – Sep 2026 | 52 mg/l 7 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 24 | Oct 2023 – Sep 2026 | 81 mg/l 7 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 24 | Oct 2023 – Sep 2026 | 5.6 µg/l 7 Sep 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.