River Blakewater above the confluence with River Darwen
EA name: RIVER BLAKEWATER PTC RIVER DARWEN
Environment Agency sampling point NW-88003547 · 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
- 24 Jun 2026, 11:273 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 20 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 366247, 427022As published, to the nearest 1 m. Open in a map
- River, by its own name
- Blakewater
- River, by the map
- River BlakewaterPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Blue Bridge On the River Darwen · 18 km along the river
- Nearest gauge upstream
- Harrison Street On the River Blakewater · 2.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.5%
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 91.5 | 91.5% |
| 29 May 2026, 10:12 | 86.9 | 86.9% |
| 7 May 2026, 11:36 | 100.8 | 100.8% |
| 27 Apr 2026, 12:10 | 107.1 | 107.1% |
| 16 Mar 2026, 09:16 | 98.8 | 98.8% |
| 13 Mar 2026, 14:09 | 100.9 | 100.9% |
| 16 Feb 2026, 12:32 | 96.6 | 96.6% |
| 4 Feb 2026, 10:29 | 96.3 | 96.3% |
| 29 Jan 2026, 12:06 | 99.5 | 99.5% |
| 8 Jan 2026, 10:46 | 90.8 | 90.8% |
| 15 Dec 2025, 13:09 | 97.5 | 97.5% |
| 3 Dec 2025, 12:55 | 98.6 | 98.6% |
| 28 Nov 2025, 10:59 | 98.6 | 98.6% |
| 6 Nov 2025, 11:21 | 100.4 | 100.4% |
| 12 Mar 2025, 10:36 | 112.7 | 112.7% |
| 21 Feb 2025, 09:00 | 102.1 | 102.1% |
| 22 Jan 2025, 12:35 | 100.8 | 100.8% |
| 10 Dec 2024, 10:41 | 98.7 | 98.7% |
| 19 Nov 2024, 12:31 | 98.2 | 98.2% |
| 15 Oct 2024, 12:36 | 97.8 | 97.8% |
| 18 Sep 2024, 10:36 | 92 | 92% |
| 23 Aug 2024, 09:04 | 95.2 | 95.2% |
| 17 Jul 2024, 11:02 | 97.7 | 97.7% |
| 18 Jun 2024, 13:03 | 101 | 101% |
| 16 May 2024, 10:51 | 99.1 | 99.1% |
| 19 Apr 2024, 10:24 | 108.1 | 108.1% |
| 9 Apr 2024, 12:35 | 96.8 | 96.8% |
| 20 Mar 2024, 10:30 | 103 | 103% |
| 21 Feb 2024, 11:10 | 98 | 98% |
| 24 Jan 2024, 10:25 | 99.1 | 99.1% |
| 6 Dec 2023, 14:44 | 95.9 | 95.9% |
| 20 Nov 2023, 12:40 | 98.7 | 98.7% |
| 20 Oct 2023, 11:39 | 92.8 | 92.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.5 mg/l
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 8.5 | 8.5 mg/l |
| 29 May 2026, 10:12 | 8.74 | 8.74 mg/l |
| 7 May 2026, 11:36 | 11.4 | 11.4 mg/l |
| 27 Apr 2026, 12:10 | 11.3 | 11.3 mg/l |
| 16 Mar 2026, 09:16 | 12 | 12 mg/l |
| 13 Mar 2026, 14:09 | 12.1 | 12.1 mg/l |
| 16 Feb 2026, 12:32 | 11.9 | 11.9 mg/l |
| 4 Feb 2026, 10:29 | 12 | 12 mg/l |
| 29 Jan 2026, 12:06 | 12.2 | 12.2 mg/l |
| 8 Jan 2026, 10:46 | 11.6 | 11.6 mg/l |
| 15 Dec 2025, 13:09 | 11.2 | 11.2 mg/l |
| 3 Dec 2025, 12:55 | 11.8 | 11.8 mg/l |
| 28 Nov 2025, 10:59 | 11.4 | 11.4 mg/l |
| 6 Nov 2025, 11:21 | 10.7 | 10.7 mg/l |
| 12 Mar 2025, 10:36 | 14 | 14 mg/l |
| 21 Feb 2025, 09:00 | 11.8 | 11.8 mg/l |
| 22 Jan 2025, 12:35 | 12.4 | 12.4 mg/l |
| 10 Dec 2024, 10:41 | 12 | 12 mg/l |
| 19 Nov 2024, 12:31 | 11.9 | 11.9 mg/l |
| 15 Oct 2024, 12:36 | 10.7 | 10.7 mg/l |
| 18 Sep 2024, 10:36 | 9.8 | 9.8 mg/l |
| 23 Aug 2024, 09:04 | 9.85 | 9.85 mg/l |
| 17 Jul 2024, 11:02 | 9.83 | 9.83 mg/l |
| 18 Jun 2024, 13:03 | 10.5 | 10.5 mg/l |
| 16 May 2024, 10:51 | 10.1 | 10.1 mg/l |
| 19 Apr 2024, 10:24 | 12.3 | 12.3 mg/l |
| 9 Apr 2024, 12:35 | 11.2 | 11.2 mg/l |
| 20 Mar 2024, 10:30 | 11.7 | 11.7 mg/l |
| 21 Feb 2024, 11:10 | 11.5 | 11.5 mg/l |
| 24 Jan 2024, 10:25 | 11.9 | 11.9 mg/l |
| 6 Dec 2023, 14:44 | 12.1 | 12.1 mg/l |
| 20 Nov 2023, 12:40 | 11 | 11 mg/l |
| 20 Oct 2023, 11:39 | 9.87 | 9.87 mg/l |
Water temperature
code 0076 · °C
18.8 °C
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 18.8 | 18.8 °C |
| 29 May 2026, 10:12 | 15 | 15 °C |
| 7 May 2026, 11:36 | 9.8 | 9.8 °C |
| 27 Apr 2026, 12:10 | 12.8 | 12.8 °C |
| 16 Mar 2026, 09:16 | 7 | 7 °C |
| 13 Mar 2026, 14:09 | 7.4 | 7.4 °C |
| 16 Feb 2026, 12:32 | 6.4 | 6.4 °C |
| 4 Feb 2026, 10:29 | 5.8 | 5.8 °C |
| 29 Jan 2026, 12:06 | 6.4 | 6.4 °C |
| 8 Jan 2026, 10:46 | 4.9 | 4.9 °C |
| 15 Dec 2025, 13:09 | 9.3 | 9.3 °C |
| 3 Dec 2025, 12:55 | 7.6 | 7.6 °C |
| 28 Nov 2025, 10:59 | 8.8 | 8.8 °C |
| 6 Nov 2025, 11:21 | 12.5 | 12.5 °C |
| 12 Mar 2025, 10:36 | 6 | 6 °C |
| 21 Feb 2025, 09:00 | 9.1 | 9.1 °C |
| 22 Jan 2025, 12:35 | 6.4 | 6.4 °C |
| 10 Dec 2024, 10:41 | 7 | 7 °C |
| 19 Nov 2024, 12:31 | 6.9 | 6.9 °C |
| 15 Oct 2024, 12:36 | 11.2 | 11.2 °C |
| 18 Sep 2024, 10:36 | 12.4 | 12.4 °C |
| 23 Aug 2024, 09:04 | 13.7 | 13.7 °C |
| 17 Jul 2024, 11:02 | 15 | 15 °C |
| 18 Jun 2024, 13:03 | 13.3 | 13.3 °C |
| 16 May 2024, 10:51 | 14.3 | 14.3 °C |
| 19 Apr 2024, 10:24 | 9.5 | 9.5 °C |
| 9 Apr 2024, 12:35 | 8.9 | 8.9 °C |
| 20 Mar 2024, 10:30 | 9.6 | 9.6 °C |
| 21 Feb 2024, 11:10 | 8.4 | 8.4 °C |
| 24 Jan 2024, 10:25 | 7.4 | 7.4 °C |
| 6 Dec 2023, 14:44 | 5.3 | 5.3 °C |
| 20 Nov 2023, 12:40 | 10.3 | 10.3 °C |
| 20 Oct 2023, 11:39 | 12.5 | 12.5 °C |
pH
code 0061
8.05
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 8.05 | 8.05 |
| 29 May 2026, 10:12 | 7.99 | 7.99 |
| 7 May 2026, 11:36 | 8.05 | 8.05 |
| 27 Apr 2026, 12:10 | 8.32 | 8.32 |
| 16 Mar 2026, 09:16 | 8.18 | 8.18 |
| 13 Mar 2026, 14:09 | 8.06 | 8.06 |
| 16 Feb 2026, 12:32 | 8.06 | 8.06 |
| 4 Feb 2026, 10:29 | 8.03 | 8.03 |
| 29 Jan 2026, 12:06 | 8.05 | 8.05 |
| 8 Jan 2026, 10:46 | 8 | 8 |
| 15 Dec 2025, 13:09 | 7.8 | 7.8 |
| 3 Dec 2025, 12:55 | 8 | 8 |
| 28 Nov 2025, 10:59 | 7.94 | 7.94 |
| 6 Nov 2025, 11:21 | 7.98 | 7.98 |
| 12 Mar 2025, 10:36 | 8.4 | 8.4 |
| 21 Feb 2025, 09:00 | 8.13 | 8.13 |
| 22 Jan 2025, 12:35 | 8.08 | 8.08 |
| 10 Dec 2024, 10:41 | 8.12 | 8.12 |
| 19 Nov 2024, 12:31 | 8 | 8 |
| 15 Oct 2024, 12:36 | 8.16 | 8.16 |
| 18 Sep 2024, 10:36 | 7.9 | 7.9 |
| 23 Aug 2024, 09:04 | 7.96 | 7.96 |
| 17 Jul 2024, 11:02 | 8.27 | 8.27 |
| 18 Jun 2024, 13:03 | 8.26 | 8.26 |
| 16 May 2024, 10:51 | 8.43 | 8.43 |
| 19 Apr 2024, 10:24 | 8.3 | 8.3 |
| 9 Apr 2024, 12:35 | 7.97 | 7.97 |
| 20 Mar 2024, 10:30 | 8 | 8 |
| 21 Feb 2024, 11:10 | 7.88 | 7.88 |
| 24 Jan 2024, 10:25 | 8.24 | 8.24 |
| 6 Dec 2023, 14:44 | 8.09 | 8.09 |
| 20 Nov 2023, 12:40 | 7.98 | 7.98 |
| 20 Oct 2023, 11:39 | 7.88 | 7.88 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.11 mg/l
Sampled 24 Jun 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 0.11 | 0.11 mg/l |
| 29 May 2026, 10:12 | 0.066 | 0.066 mg/l |
| 7 May 2026, 11:36 | 0.22 | 0.22 mg/l |
| 27 Apr 2026, 12:10 | 0.18 | 0.18 mg/l |
| 16 Mar 2026, 09:16 | 0.11 | 0.11 mg/l |
| 13 Mar 2026, 14:09 | 0.23 | 0.23 mg/l |
| 16 Feb 2026, 12:32 | 0.16 | 0.16 mg/l |
| 4 Feb 2026, 10:29 | 0.23 | 0.23 mg/l |
| 29 Jan 2026, 12:06 | 0.19 | 0.19 mg/l |
| 8 Jan 2026, 10:46 | 0.24 | 0.24 mg/l |
| 15 Dec 2025, 13:09 | 0.28 | 0.28 mg/l |
| 3 Dec 2025, 12:55 | 0.18 | 0.18 mg/l |
| 28 Nov 2025, 10:59 | 0.16 | 0.16 mg/l |
| 6 Nov 2025, 11:21 | 0.097 | 0.097 mg/l |
| 12 Mar 2025, 10:36 | 0.14 | 0.14 mg/l |
| 21 Feb 2025, 09:00 | 0.14 | 0.14 mg/l |
| 22 Jan 2025, 12:35 | 0.27 | 0.27 mg/l |
| 19 Nov 2024, 12:31 | 0.19 | 0.19 mg/l |
| 15 Oct 2024, 12:36 | 0.16 | 0.16 mg/l |
| 18 Sep 2024, 10:36 | 0.26 | 0.26 mg/l |
| 23 Aug 2024, 09:04 | 0.046 | 0.046 mg/l |
| 17 Jul 2024, 11:02 | 0.075 | 0.075 mg/l |
| 18 Jun 2024, 13:03 | 0.1 | 0.1 mg/l |
| 16 May 2024, 10:51 | 0.14 | 0.14 mg/l |
| 19 Apr 2024, 10:24 | 0.077 | 0.077 mg/l |
| 9 Apr 2024, 12:35 | 0.07 | 0.07 mg/l |
| 20 Mar 2024, 10:30 | 0.11 | 0.11 mg/l |
| 21 Feb 2024, 11:10 | 0.21 | 0.21 mg/l |
| 24 Jan 2024, 10:25 | 0.2 | 0.2 mg/l |
| 6 Dec 2023, 14:44 | 0.31 | 0.31 mg/l |
| 20 Nov 2023, 12:40 | 0.12 | 0.12 mg/l |
| 20 Oct 2023, 11:39 | 0.095 | 0.095 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.33 mg/l
Sampled 24 Jun 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 1.33 | 1.33 mg/l |
| 29 May 2026, 10:12 | 1.35 | 1.35 mg/l |
| 7 May 2026, 11:36 | 1.84 | 1.84 mg/l |
| 27 Apr 2026, 12:10 | 1.34 | 1.34 mg/l |
| 16 Mar 2026, 09:16 | 1.18 | 1.18 mg/l |
| 13 Mar 2026, 14:09 | 1.36 | 1.36 mg/l |
| 16 Feb 2026, 12:32 | 1.18 | 1.18 mg/l |
| 4 Feb 2026, 10:29 | 1.66 | 1.66 mg/l |
| 29 Jan 2026, 12:06 | 1.87 | 1.87 mg/l |
| 8 Jan 2026, 10:46 | 1.77 | 1.77 mg/l |
| 15 Dec 2025, 13:09 | 0.829 | 0.829 mg/l |
| 3 Dec 2025, 12:55 | 1.56 | 1.56 mg/l |
| 28 Nov 2025, 10:59 | 1.56 | 1.56 mg/l |
| 6 Nov 2025, 11:21 | 1.27 | 1.27 mg/l |
| 12 Mar 2025, 10:36 | 1.57 | 1.57 mg/l |
| 21 Feb 2025, 09:00 | 1.37 | 1.37 mg/l |
| 22 Jan 2025, 12:35 | 1.57 | 1.57 mg/l |
| 19 Nov 2024, 12:31 | 1.37 | 1.37 mg/l |
| 15 Oct 2024, 12:36 | 1.65 | 1.65 mg/l |
| 18 Sep 2024, 10:36 | 1.74 | 1.74 mg/l |
| 23 Aug 2024, 09:04 | 0.726 | 0.726 mg/l |
| 17 Jul 2024, 11:02 | 1.55 | 1.55 mg/l |
| 18 Jun 2024, 13:03 | 1.84 | 1.84 mg/l |
| 16 May 2024, 10:51 | 1.34 | 1.34 mg/l |
| 19 Apr 2024, 10:24 | 0.909 | 0.909 mg/l |
| 9 Apr 2024, 12:35 | 0.544 | 0.544 mg/l |
| 20 Mar 2024, 10:30 | 0.79 | 0.79 mg/l |
| 21 Feb 2024, 11:10 | 0.778 | 0.778 mg/l |
| 24 Jan 2024, 10:25 | 1.57 | 1.57 mg/l |
| 6 Dec 2023, 14:44 | 1.36 | 1.36 mg/l |
| 20 Nov 2023, 12:40 | 1.37 | 1.37 mg/l |
| 20 Oct 2023, 11:39 | 0.876 | 0.876 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.18 mg/l
Sampled 24 Jun 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 0.18 | 0.18 mg/l |
| 29 May 2026, 10:12 | 0.1 | 0.1 mg/l |
| 7 May 2026, 11:36 | 0.12 | 0.12 mg/l |
| 27 Apr 2026, 12:10 | 0.082 | 0.082 mg/l |
| 16 Mar 2026, 09:16 | 0.067 | 0.067 mg/l |
| 13 Mar 2026, 14:09 | 0.1 | 0.1 mg/l |
| 16 Feb 2026, 12:32 | 0.055 | 0.055 mg/l |
| 4 Feb 2026, 10:29 | 0.079 | 0.079 mg/l |
| 29 Jan 2026, 12:06 | 0.092 | 0.092 mg/l |
| 8 Jan 2026, 10:46 | 0.075 | 0.075 mg/l |
| 15 Dec 2025, 13:09 | 0.11 | 0.11 mg/l |
| 3 Dec 2025, 12:55 | 0.086 | 0.086 mg/l |
| 28 Nov 2025, 10:59 | 0.088 | 0.088 mg/l |
| 6 Nov 2025, 11:21 | 0.091 | 0.091 mg/l |
| 12 Mar 2025, 10:36 | 0.078 | 0.078 mg/l |
| 21 Feb 2025, 09:00 | 0.068 | 0.068 mg/l |
| 22 Jan 2025, 12:35 | 0.074 | 0.074 mg/l |
| 19 Nov 2024, 12:31 | 0.12 | 0.12 mg/l |
| 15 Oct 2024, 12:36 | 0.1 | 0.1 mg/l |
| 18 Sep 2024, 10:36 | 0.22 | 0.22 mg/l |
| 23 Aug 2024, 09:04 | 0.065 | 0.065 mg/l |
| 17 Jul 2024, 11:02 | 0.12 | 0.12 mg/l |
| 18 Jun 2024, 13:03 | 0.081 | 0.081 mg/l |
| 16 May 2024, 10:51 | 0.14 | 0.14 mg/l |
| 19 Apr 2024, 10:24 | 0.072 | 0.072 mg/l |
| 9 Apr 2024, 12:35 | 0.028 | 0.028 mg/l |
| 20 Mar 2024, 10:30 | 0.054 | 0.054 mg/l |
| 21 Feb 2024, 11:10 | 0.094 | 0.094 mg/l |
| 24 Jan 2024, 10:25 | 0.084 | 0.084 mg/l |
| 6 Dec 2023, 14:44 | 0.075 | 0.075 mg/l |
| 20 Nov 2023, 12:40 | 0.077 | 0.077 mg/l |
| 20 Oct 2023, 11:39 | 0.089 | 0.089 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
511 µS/cm
Sampled 24 Jun 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Jun 2026, 11:27 | 511 | 511 µS/cm |
| 29 May 2026, 10:12 | 573 | 573 µS/cm |
| 7 May 2026, 11:36 | 651 | 651 µS/cm |
| 27 Apr 2026, 12:10 | 451 | 451 µS/cm |
| 16 Mar 2026, 09:16 | 437 | 437 µS/cm |
| 13 Mar 2026, 14:09 | 405 | 405 µS/cm |
| 16 Feb 2026, 12:32 | 399 | 399 µS/cm |
| 4 Feb 2026, 10:29 | 554 | 554 µS/cm |
| 29 Jan 2026, 12:06 | 470 | 470 µS/cm |
| 8 Jan 2026, 10:46 | 688 | 688 µS/cm |
| 15 Dec 2025, 13:09 | 226 | 226 µS/cm |
| 3 Dec 2025, 12:55 | 450 | 450 µS/cm |
| 28 Nov 2025, 10:59 | 505 | 505 µS/cm |
| 6 Nov 2025, 11:21 | 429 | 429 µS/cm |
| 12 Mar 2025, 10:36 | 631 | 631 µS/cm |
| 21 Feb 2025, 09:00 | 580 | 580 µS/cm |
| 22 Jan 2025, 12:35 | 604 | 604 µS/cm |
| 10 Dec 2024, 10:41 | 512 | 512 µS/cm |
| 19 Nov 2024, 12:31 | 1432 | 1432 µS/cm |
| 15 Oct 2024, 12:36 | 544 | 544 µS/cm |
| 18 Sep 2024, 10:36 | 624 | 624 µS/cm |
| 23 Aug 2024, 09:04 | 268 | 268 µS/cm |
| 17 Jul 2024, 11:02 | 627 | 627 µS/cm |
| 18 Jun 2024, 13:03 | 513 | 513 µS/cm |
| 16 May 2024, 10:51 | 519 | 519 µS/cm |
| 19 Apr 2024, 10:24 | 379 | 379 µS/cm |
| 9 Apr 2024, 12:35 | 245 | 245 µS/cm |
| 20 Mar 2024, 10:30 | 320 | 320 µS/cm |
| 21 Feb 2024, 11:10 | 240 | 240 µS/cm |
| 24 Jan 2024, 10:25 | 578 | 578 µS/cm |
| 6 Dec 2023, 14:44 | 572 | 572 µS/cm |
| 20 Nov 2023, 12:40 | 387 | 387 µS/cm |
| 20 Oct 2023, 11:39 | 285 | 285 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Jun 2026 | 91.5% 24 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Jun 2026 | 8.5 mg/l 24 Jun 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Jun 2026 | 18.8 °C 24 Jun 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Jun 2026 | 8.05 24 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Jun 2026 | 0.11 mg/l 24 Jun 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Jun 2026 | 1.33 mg/l 24 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Jun 2026 | 0.18 mg/l 24 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Jun 2026 | 511 µS/cm 24 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Jun 2026 | 140 mg/l 24 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Jun 2026 | 0.0038 mg/l 24 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Feb 2024 – Jun 2026 | 1.1 mg/l 24 Jun 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Jun 2026 | 0.071 mg/l 24 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Jun 2026 | 1.4 mg/l 24 Jun 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.