Blackwater at Lynchford Bridge, Ash Vale
EA name: BLACKWATER AT LYNCHFORD BRIDGE, ASH VALE
Environment Agency sampling point TH-PLDR0011 · 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
- 9 Jul 2026, 12:133 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 32 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)
- Where
- National Grid 488520, 153770As published, to the nearest 10 m. Open in a map
- River, by its own name
- Blackwater
- River, by the map
- Blackwater RiverPlaced on the river its name gives, 8 m from the line.
- Next gauge downstream
- Farnborough On the River Blackwater · 2.9 km along the river
- Nearest gauge upstream
- Tongham On the River Blackwater · 5.2 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (32 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
56.2%
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 56.2 | 56.2% |
| 5 Jun 2026, 10:00 | 46.5 | 46.5% |
| 22 May 2026, 08:31 | 44.8 | 44.8% |
| 10 Apr 2026, 08:29 | 63.7 | 63.7% |
| 18 Mar 2026, 10:21 | 62.4 | 62.4% |
| 10 Feb 2026, 10:44 | 70 | 70% |
| 6 Jan 2026, 14:11 | 62.3 | 62.3% |
| 11 Dec 2025, 10:37 | 67.3 | 67.3% |
| 5 Nov 2025, 09:47 | 44.3 | 44.3% |
| 9 Oct 2025, 10:37 | 54 | 54% |
| 11 Sep 2025, 09:52 | 50.4 | 50.4% |
| 8 Aug 2025, 11:51 | 64.8 | 64.8% |
| 14 Jul 2025, 11:39 | 61.3 | 61.3% |
| 26 Jun 2025, 10:56 | 55.2 | 55.2% |
| 22 May 2025, 11:38 | 47.9 | 47.9% |
| 16 Apr 2025, 14:05 | 72.4 | 72.4% |
| 5 Mar 2025, 11:34 | 72.5 | 72.5% |
| 10 Feb 2025, 11:45 | 75.2 | 75.2% |
| 14 Jan 2025, 10:25 | 84.2 | 84.2% |
| 13 Dec 2024, 09:57 | 69.3 | 69.3% |
| 11 Nov 2024, 12:32 | 56.6 | 56.6% |
| 1 Oct 2024, 11:50 | 59.1 | 59.1% |
| 12 Sep 2024, 10:09 | 54.4 | 54.4% |
| 8 Aug 2024, 10:03 | 56.2 | 56.2% |
| 15 Jul 2024, 10:06 | 49.8 | 49.8% |
| 3 Jun 2024, 11:56 | 59.2 | 59.2% |
| 11 Mar 2024, 11:00 | 66 | 66% |
| 5 Feb 2024, 10:51 | 77.4 | 77.4% |
| 3 Jan 2024, 12:22 | 72.4 | 72.4% |
| 5 Dec 2023, 12:45 | 75.7 | 75.7% |
| 1 Nov 2023, 10:34 | 63.3 | 63.3% |
| 9 Oct 2023, 11:03 | 60.7 | 60.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
4.88 mg/l
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 4.88 | 4.88 mg/l |
| 5 Jun 2026, 10:00 | 4.58 | 4.58 mg/l |
| 22 May 2026, 08:31 | 4.35 | 4.35 mg/l |
| 10 Apr 2026, 08:29 | 7.03 | 7.03 mg/l |
| 18 Mar 2026, 10:21 | 6.83 | 6.83 mg/l |
| 10 Feb 2026, 10:44 | 7.91 | 7.91 mg/l |
| 6 Jan 2026, 14:11 | 7.91 | 7.91 mg/l |
| 11 Dec 2025, 10:37 | 7.58 | 7.58 mg/l |
| 5 Nov 2025, 09:47 | 4.5 | 4.5 mg/l |
| 9 Oct 2025, 10:37 | 5.51 | 5.51 mg/l |
| 11 Sep 2025, 09:52 | 4.95 | 4.95 mg/l |
| 8 Aug 2025, 11:51 | 6.08 | 6.08 mg/l |
| 14 Jul 2025, 11:39 | 5.51 | 5.51 mg/l |
| 26 Jun 2025, 10:56 | 5.06 | 5.06 mg/l |
| 22 May 2025, 11:38 | 4.82 | 4.82 mg/l |
| 16 Apr 2025, 14:05 | 7.64 | 7.64 mg/l |
| 5 Mar 2025, 11:34 | 8.64 | 8.64 mg/l |
| 10 Feb 2025, 11:45 | 9.09 | 9.09 mg/l |
| 14 Jan 2025, 10:25 | 10.3 | 10.3 mg/l |
| 13 Dec 2024, 09:57 | 7.9 | 7.9 mg/l |
| 11 Nov 2024, 12:32 | 5.99 | 5.99 mg/l |
| 1 Oct 2024, 11:50 | 6.13 | 6.13 mg/l |
| 12 Sep 2024, 10:09 | 5.6 | 5.6 mg/l |
| 8 Aug 2024, 10:03 | 5.32 | 5.32 mg/l |
| 15 Jul 2024, 10:06 | 4.83 | 4.83 mg/l |
| 3 Jun 2024, 11:56 | 5.79 | 5.79 mg/l |
| 11 Mar 2024, 11:00 | 7.47 | 7.47 mg/l |
| 5 Feb 2024, 10:51 | 8.64 | 8.64 mg/l |
| 3 Jan 2024, 12:22 | 8.22 | 8.22 mg/l |
| 5 Dec 2023, 12:45 | 8.82 | 8.82 mg/l |
| 1 Nov 2023, 10:34 | 6.58 | 6.58 mg/l |
| 9 Oct 2023, 11:03 | 5.94 | 5.94 mg/l |
Water temperature
code 0076 · °C
22.2 °C
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 22.2 | 22.2 °C |
| 5 Jun 2026, 10:00 | 16 | 16 °C |
| 22 May 2026, 08:31 | 16.7 | 16.7 °C |
| 10 Apr 2026, 08:29 | 10.9 | 10.9 °C |
| 18 Mar 2026, 10:21 | 11.2 | 11.2 °C |
| 10 Feb 2026, 10:44 | 9.9 | 9.9 °C |
| 6 Jan 2026, 14:11 | 5.2 | 5.2 °C |
| 11 Dec 2025, 10:37 | 10 | 10 °C |
| 5 Nov 2025, 09:47 | 14.5 | 14.5 °C |
| 9 Oct 2025, 10:37 | 14.3 | 14.3 °C |
| 11 Sep 2025, 09:52 | 16.1 | 16.1 °C |
| 8 Aug 2025, 11:51 | 18.3 | 18.3 °C |
| 14 Jul 2025, 11:39 | 20.5 | 20.5 °C |
| 26 Jun 2025, 10:56 | 19.5 | 19.5 °C |
| 22 May 2025, 11:38 | 15 | 15 °C |
| 16 Apr 2025, 14:05 | 12.8 | 12.8 °C |
| 5 Mar 2025, 11:34 | 7.7 | 7.7 °C |
| 10 Feb 2025, 11:45 | 7.1 | 7.1 °C |
| 14 Jan 2025, 10:25 | 6.7 | 6.7 °C |
| 13 Dec 2024, 09:57 | 9.5 | 9.5 °C |
| 11 Nov 2024, 12:32 | 12.7 | 12.7 °C |
| 1 Oct 2024, 11:50 | 13.6 | 13.6 °C |
| 12 Sep 2024, 10:09 | 13.9 | 13.9 °C |
| 8 Aug 2024, 10:03 | 17.9 | 17.9 °C |
| 15 Jul 2024, 10:06 | 16.7 | 16.7 °C |
| 3 Jun 2024, 11:56 | 16.3 | 16.3 °C |
| 11 Mar 2024, 11:00 | 9.8 | 9.8 °C |
| 5 Feb 2024, 10:51 | 10.4 | 10.4 °C |
| 3 Jan 2024, 12:22 | 9.7 | 9.7 °C |
| 5 Dec 2023, 12:45 | 8.6 | 8.6 °C |
| 1 Nov 2023, 10:34 | 13.5 | 13.5 °C |
| 9 Oct 2023, 11:03 | 16.3 | 16.3 °C |
pH
code 0061
7.55
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 7.55 | 7.55 |
| 5 Jun 2026, 10:00 | 7.11 | 7.11 |
| 22 May 2026, 08:31 | 7.13 | 7.13 |
| 10 Apr 2026, 08:29 | 7.26 | 7.26 |
| 18 Mar 2026, 10:21 | 7.32 | 7.32 |
| 10 Feb 2026, 10:44 | 7.3 | 7.3 |
| 6 Jan 2026, 14:11 | 7.27 | 7.27 |
| 11 Dec 2025, 10:37 | 7.39 | 7.39 |
| 5 Nov 2025, 09:47 | 7.21 | 7.21 |
| 9 Oct 2025, 10:37 | 7.21 | 7.21 |
| 11 Sep 2025, 09:52 | 7.34 | 7.34 |
| 8 Aug 2025, 11:51 | 7.45 | 7.45 |
| 14 Jul 2025, 11:39 | 7.32 | 7.32 |
| 26 Jun 2025, 10:56 | 7.4 | 7.4 |
| 22 May 2025, 11:38 | 7.19 | 7.19 |
| 16 Apr 2025, 14:05 | 7.36 | 7.36 |
| 5 Mar 2025, 11:34 | 7.4 | 7.4 |
| 10 Feb 2025, 11:45 | 7.36 | 7.36 |
| 14 Jan 2025, 10:25 | 7.37 | 7.37 |
| 13 Dec 2024, 09:57 | 7.33 | 7.33 |
| 11 Nov 2024, 12:32 | 7.35 | 7.35 |
| 1 Oct 2024, 11:50 | 6.71 | 6.71 |
| 12 Sep 2024, 10:09 | 7.3 | 7.3 |
| 8 Aug 2024, 10:03 | 7.32 | 7.32 |
| 15 Jul 2024, 10:06 | 7.34 | 7.34 |
| 3 Jun 2024, 11:56 | 7.37 | 7.37 |
| 11 Mar 2024, 11:00 | 7.36 | 7.36 |
| 5 Feb 2024, 10:51 | 7.28 | 7.28 |
| 3 Jan 2024, 12:22 | 7.29 | 7.29 |
| 5 Dec 2023, 12:45 | 7.36 | 7.36 |
| 1 Nov 2023, 10:34 | 7.3 | 7.3 |
| 9 Oct 2023, 11:03 | 7.4 | 7.4 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.065 mg/l
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 0.065 | 0.065 mg/l |
| 5 Jun 2026, 10:00 | 0.14 | 0.14 mg/l |
| 22 May 2026, 08:31 | 0.19 | 0.19 mg/l |
| 10 Apr 2026, 08:29 | 0.39 | 0.39 mg/l |
| 18 Mar 2026, 10:21 | 0.53 | 0.53 mg/l |
| 10 Feb 2026, 10:44 | 0.4 | 0.4 mg/l |
| 6 Jan 2026, 14:11 | 1.9 | 1.9 mg/l |
| 11 Dec 2025, 10:37 | 0.54 | 0.54 mg/l |
| 5 Nov 2025, 09:47 | 0.36 | 0.36 mg/l |
| 9 Oct 2025, 10:37 | 0.26 | 0.26 mg/l |
| 11 Sep 2025, 09:52 | 0.16 | 0.16 mg/l |
| 8 Aug 2025, 11:51 | 0.13 | 0.13 mg/l |
| 14 Jul 2025, 11:39 | 0.12 | 0.12 mg/l |
| 26 Jun 2025, 10:56 | 0.2 | 0.2 mg/l |
| 22 May 2025, 11:38 | 1 | 1 mg/l |
| 16 Apr 2025, 14:05 | 0.45 | 0.45 mg/l |
| 5 Mar 2025, 11:34 | 0.69 | 0.69 mg/l |
| 10 Feb 2025, 11:45 | 1.2 | 1.2 mg/l |
| 14 Jan 2025, 10:25 | 0.8 | 0.8 mg/l |
| 13 Dec 2024, 09:57 | 0.54 | 0.54 mg/l |
| 11 Nov 2024, 12:32 | 0.66 | 0.66 mg/l |
| 1 Oct 2024, 11:50 | 0.17 | 0.17 mg/l |
| 12 Sep 2024, 10:09 | 0.5 | 0.5 mg/l |
| 8 Aug 2024, 10:03 | 0.15 | 0.15 mg/l |
| 15 Jul 2024, 10:06 | 0.23 | 0.23 mg/l |
| 3 Jun 2024, 11:56 | 0.35 | 0.35 mg/l |
| 11 Mar 2024, 11:00 | 0.42 | 0.42 mg/l |
| 5 Feb 2024, 10:51 | 1.5 | 1.5 mg/l |
| 3 Jan 2024, 12:22 | 0.29 | 0.29 mg/l |
| 5 Dec 2023, 12:45 | 0.43 | 0.43 mg/l |
| 1 Nov 2023, 10:34 | 0.1 | 0.1 mg/l |
| 9 Oct 2023, 11:03 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.9 mg/l
Sampled 9 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 18.9 | 18.9 mg/l |
| 5 Jun 2026, 10:00 | 13.7 | 13.7 mg/l |
| 22 May 2026, 08:31 | 14.7 | 14.7 mg/l |
| 10 Apr 2026, 08:29 | 16.7 | 16.7 mg/l |
| 18 Mar 2026, 10:21 | 11.8 | 11.8 mg/l |
| 10 Feb 2026, 10:44 | 5.7 | 5.7 mg/l |
| 6 Jan 2026, 14:11 | 11.7 | 11.7 mg/l |
| 11 Dec 2025, 10:37 | 9.02 | 9.02 mg/l |
| 5 Nov 2025, 09:47 | 12.8 | 12.8 mg/l |
| 9 Oct 2025, 10:37 | 17.8 | 17.8 mg/l |
| 11 Sep 2025, 09:52 | 11.8 | 11.8 mg/l |
| 8 Aug 2025, 11:51 | 16.7 | 16.7 mg/l |
| 14 Jul 2025, 11:39 | 12.8 | 12.8 mg/l |
| 26 Jun 2025, 10:56 | 12.8 | 12.8 mg/l |
| 22 May 2025, 11:38 | 13.6 | 13.6 mg/l |
| 16 Apr 2025, 14:05 | 10.7 | 10.7 mg/l |
| 5 Mar 2025, 11:34 | 7.28 | 7.28 mg/l |
| 10 Feb 2025, 11:45 | 4.98 | 4.98 mg/l |
| 14 Jan 2025, 10:25 | 7.91 | 7.91 mg/l |
| 13 Dec 2024, 09:57 | 10.9 | 10.9 mg/l |
| 11 Nov 2024, 12:32 | 12.8 | 12.8 mg/l |
| 1 Oct 2024, 11:50 | 4.18 | 4.18 mg/l |
| 12 Sep 2024, 10:09 | 11.8 | 11.8 mg/l |
| 8 Aug 2024, 10:03 | 14.8 | 14.8 mg/l |
| 15 Jul 2024, 10:06 | 11.8 | 11.8 mg/l |
| 3 Jun 2024, 11:56 | 13.7 | 13.7 mg/l |
| 11 Mar 2024, 11:00 | 8.48 | 8.48 mg/l |
| 3 Jan 2024, 12:22 | 3.93 | 3.93 mg/l |
| 5 Dec 2023, 12:45 | 5.43 | 5.43 mg/l |
| 1 Nov 2023, 10:34 | 7.03 | 7.03 mg/l |
| 9 Oct 2023, 11:03 | 17.9 | 17.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.45 mg/l
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 0.45 | 0.45 mg/l |
| 5 Jun 2026, 10:00 | 0.5 | 0.5 mg/l |
| 22 May 2026, 08:31 | 0.52 | 0.52 mg/l |
| 10 Apr 2026, 08:29 | 0.48 | 0.48 mg/l |
| 18 Mar 2026, 10:21 | 0.5 | 0.5 mg/l |
| 10 Feb 2026, 10:44 | 0.19 | 0.19 mg/l |
| 6 Jan 2026, 14:11 | 0.27 | 0.27 mg/l |
| 11 Dec 2025, 10:37 | 0.16 | 0.16 mg/l |
| 5 Nov 2025, 09:47 | 0.12 | 0.12 mg/l |
| 9 Oct 2025, 10:37 | 0.36 | 0.36 mg/l |
| 11 Sep 2025, 09:52 | 0.35 | 0.35 mg/l |
| 8 Aug 2025, 11:51 | 0.27 | 0.27 mg/l |
| 14 Jul 2025, 11:39 | 0.67 | 0.67 mg/l |
| 26 Jun 2025, 10:56 | 0.68 | 0.68 mg/l |
| 22 May 2025, 11:38 | 0.33 | 0.33 mg/l |
| 16 Apr 2025, 14:05 | 0.57 | 0.57 mg/l |
| 5 Mar 2025, 11:34 | 0.22 | 0.22 mg/l |
| 10 Feb 2025, 11:45 | 0.2 | 0.2 mg/l |
| 14 Jan 2025, 10:25 | 0.16 | 0.16 mg/l |
| 13 Dec 2024, 09:57 | 0.21 | 0.21 mg/l |
| 11 Nov 2024, 12:32 | 0.42 | 0.42 mg/l |
| 1 Oct 2024, 11:50 | 0.2 | 0.2 mg/l |
| 12 Sep 2024, 10:09 | 0.3 | 0.3 mg/l |
| 8 Aug 2024, 10:03 | 0.63 | 0.63 mg/l |
| 15 Jul 2024, 10:06 | 0.46 | 0.46 mg/l |
| 3 Jun 2024, 11:56 | 0.34 | 0.34 mg/l |
| 11 Mar 2024, 11:00 | 0.15 | 0.15 mg/l |
| 5 Feb 2024, 10:51 | 0.22 | 0.22 mg/l |
| 3 Jan 2024, 12:22 | 0.11 | 0.11 mg/l |
| 5 Dec 2023, 12:45 | 0.16 | 0.16 mg/l |
| 1 Nov 2023, 10:34 | 0.14 | 0.14 mg/l |
| 9 Oct 2023, 11:03 | 0.45 | 0.45 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
930 µS/cm
Sampled 9 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Jul 2026, 12:13 | 930 | 930 µS/cm |
| 5 Jun 2026, 10:00 | 706 | 706 µS/cm |
| 22 May 2026, 08:31 | 841 | 841 µS/cm |
| 10 Apr 2026, 08:29 | 833 | 833 µS/cm |
| 18 Mar 2026, 10:21 | 740 | 740 µS/cm |
| 10 Feb 2026, 10:44 | 606 | 606 µS/cm |
| 6 Jan 2026, 14:11 | 836 | 836 µS/cm |
| 11 Dec 2025, 10:37 | 680 | 680 µS/cm |
| 5 Nov 2025, 09:47 | 763 | 763 µS/cm |
| 9 Oct 2025, 10:37 | 875 | 875 µS/cm |
| 11 Sep 2025, 09:52 | 788 | 788 µS/cm |
| 8 Aug 2025, 11:51 | 883 | 883 µS/cm |
| 14 Jul 2025, 11:39 | 904 | 904 µS/cm |
| 26 Jun 2025, 10:56 | 899 | 899 µS/cm |
| 22 May 2025, 11:38 | 809 | 809 µS/cm |
| 16 Apr 2025, 14:05 | 792 | 792 µS/cm |
| 5 Mar 2025, 11:34 | 702 | 702 µS/cm |
| 10 Feb 2025, 11:45 | 668 | 668 µS/cm |
| 14 Jan 2025, 10:25 | 707 | 707 µS/cm |
| 13 Dec 2024, 09:57 | 703 | 703 µS/cm |
| 11 Nov 2024, 12:32 | 790 | 790 µS/cm |
| 1 Oct 2024, 11:50 | 583 | 583 µS/cm |
| 12 Sep 2024, 10:09 | 719 | 719 µS/cm |
| 8 Aug 2024, 10:03 | 775 | 775 µS/cm |
| 15 Jul 2024, 10:06 | 743 | 743 µS/cm |
| 3 Jun 2024, 11:56 | 781 | 781 µS/cm |
| 11 Mar 2024, 11:00 | 715 | 715 µS/cm |
| 5 Feb 2024, 10:51 | 779 | 779 µS/cm |
| 3 Jan 2024, 12:22 | 519 | 519 µS/cm |
| 5 Dec 2023, 12:45 | 571 | 571 µS/cm |
| 1 Nov 2023, 10:34 | 528 | 528 µS/cm |
| 9 Oct 2023, 11:03 | 878 | 878 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 | 32 | Oct 2023 – Jul 2026 | 56.2% 9 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Oct 2023 – Jul 2026 | 4.88 mg/l 9 Jul 2026 |
| Temperature of Water 0076 | River water | 32 | Oct 2023 – Jul 2026 | 22.2 °C 9 Jul 2026 |
| pH 0061 | River water | 32 | Oct 2023 – Jul 2026 | 7.55 9 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Jul 2026 | 0.065 mg/l 9 Jul 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Jul 2026 | 18.9 mg/l 9 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Jul 2026 | 0.45 mg/l 9 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Oct 2023 – Jul 2026 | 930 µS/cm 9 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Jul 2026 | 130 mg/l 9 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Jul 2026 | 0.00105 mg/l 9 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Oct 2023 – Mar 2026 | below 4 mg/l 18 Mar 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Jul 2026 | 0.13 mg/l 9 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Jul 2026 | 19 mg/l 9 Jul 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.