River Waveney Denmark Bridge
EA name: R.WAVENEY DENMARK BRIDGE
Environment Agency sampling point AN-WAV020 · 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
- 19 Aug 2026, 10:4143 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 32 since 19 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 611100, 279400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Waveney
- River, by the map
- River WaveneyPlaced on the river its name gives, 45 m from the line.
- Next gauge downstream
- Billingford On the River Waveney · 6.8 km along the riverBeside Diss: too close to say above or below.
- Why it was sampled
- Monitoring (national agency policy) (20 samples)
Planned investigation (local monitoring) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
25.4%
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 25.4 | 25.4% |
| 2 Jul 2026, 10:28 | 59.8 | 59.8% |
| 9 Jun 2026, 11:52 | 61.5 | 61.5% |
| 8 May 2026, 11:04 | 71 | 71% |
| 20 Apr 2026, 14:26 | 78.6 | 78.6% |
| 5 Mar 2026, 13:03 | 75.6 | 75.6% |
| 17 Feb 2026, 11:05 | 89.7 | 89.7% |
| 7 Jan 2026, 11:38 | 74.9 | 74.9% |
| 8 Dec 2025, 08:31 | 62.1 | 62.1% |
| 7 Nov 2025, 12:14 | 15.6 | 15.6% |
| 3 Oct 2025, 12:20 | 41.3 | 41.3% |
| 12 Aug 2025, 12:05 | 42.1 | 42.1% |
| 11 Apr 2025, 13:03 | 78.7 | 78.7% |
| 28 Mar 2025, 11:03 | 64.9 | 64.9% |
| 13 Feb 2025, 13:36 | 74 | 74% |
| 29 Jan 2025, 09:30 | 83.4 | 83.4% |
| 4 Dec 2024, 09:41 | 78.1 | 78.1% |
| 18 Nov 2024, 13:30 | 57.1 | 57.1% |
| 18 Oct 2024, 10:55 | 42.7 | 42.7% |
| 20 Sep 2024, 11:32 | 54.2 | 54.2% |
| 19 Aug 2024, 12:04 | 56.3 | 56.3% |
| 31 Jul 2024, 12:36 | 53.4 | 53.4% |
| 18 Jun 2024, 10:34 | 50.8 | 50.8% |
| 18 Jun 2024, 10:33 | 50.8 | 50.8% |
| 13 May 2024, 11:04 | 50.5 | 50.5% |
| 16 Apr 2024, 09:42 | 69 | 69% |
| 15 Mar 2024, 12:48 | 69.9 | 69.9% |
| 19 Feb 2024, 10:20 | 73.2 | 73.2% |
| 16 Jan 2024, 11:23 | 73.1 | 73.1% |
| 6 Dec 2023, 13:06 | 60.7 | 60.7% |
| 21 Nov 2023, 12:36 | 49.4 | 49.4% |
| 19 Oct 2023, 12:26 | 46.1 | 46.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
2.47 mg/l
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 2.47 | 2.47 mg/l |
| 2 Jul 2026, 10:28 | 5.67 | 5.67 mg/l |
| 9 Jun 2026, 11:52 | 6.34 | 6.34 mg/l |
| 8 May 2026, 11:04 | 7.62 | 7.62 mg/l |
| 20 Apr 2026, 14:26 | 8.57 | 8.57 mg/l |
| 5 Mar 2026, 13:03 | 8.72 | 8.72 mg/l |
| 17 Feb 2026, 11:05 | 11.7 | 11.7 mg/l |
| 7 Jan 2026, 11:38 | 10.2 | 10.2 mg/l |
| 8 Dec 2025, 08:31 | 7.22 | 7.22 mg/l |
| 7 Nov 2025, 12:14 | 1.65 | 1.65 mg/l |
| 3 Oct 2025, 12:20 | 4.38 | 4.38 mg/l |
| 12 Aug 2025, 12:05 | 4.04 | 4.04 mg/l |
| 11 Apr 2025, 13:03 | 8.5 | 8.5 mg/l |
| 28 Mar 2025, 11:03 | 7.33 | 7.33 mg/l |
| 13 Feb 2025, 13:36 | 9.34 | 9.34 mg/l |
| 29 Jan 2025, 09:30 | 10.3 | 10.3 mg/l |
| 4 Dec 2024, 09:41 | 9.68 | 9.68 mg/l |
| 18 Nov 2024, 13:30 | 6.89 | 6.89 mg/l |
| 18 Oct 2024, 10:55 | 4.61 | 4.61 mg/l |
| 20 Sep 2024, 11:32 | 5.37 | 5.37 mg/l |
| 19 Aug 2024, 12:04 | 5.58 | 5.58 mg/l |
| 31 Jul 2024, 12:36 | 5.01 | 5.01 mg/l |
| 18 Jun 2024, 10:34 | 5.08 | 5.08 mg/l |
| 18 Jun 2024, 10:33 | 5.09 | 5.09 mg/l |
| 13 May 2024, 11:04 | 5.07 | 5.07 mg/l |
| 16 Apr 2024, 09:42 | 7.91 | 7.91 mg/l |
| 15 Mar 2024, 12:48 | 7.55 | 7.55 mg/l |
| 19 Feb 2024, 10:20 | 8.39 | 8.39 mg/l |
| 16 Jan 2024, 11:23 | 10.1 | 10.1 mg/l |
| 6 Dec 2023, 13:06 | 8.05 | 8.05 mg/l |
| 21 Nov 2023, 12:36 | 5.55 | 5.55 mg/l |
| 19 Oct 2023, 12:26 | 4.88 | 4.88 mg/l |
Water temperature
code 0076 · °C
16.5 °C
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 16.5 | 16.5 °C |
| 2 Jul 2026, 10:28 | 17.8 | 17.8 °C |
| 9 Jun 2026, 11:52 | 13.9 | 13.9 °C |
| 8 May 2026, 11:04 | 12.1 | 12.1 °C |
| 20 Apr 2026, 14:26 | 11.4 | 11.4 °C |
| 5 Mar 2026, 13:03 | 9 | 9 °C |
| 17 Feb 2026, 11:05 | 4.3 | 4.3 °C |
| 7 Jan 2026, 11:38 | 2.6 | 2.6 °C |
| 8 Dec 2025, 08:31 | 8.7 | 8.7 °C |
| 7 Nov 2025, 12:14 | 12.6 | 12.6 °C |
| 3 Oct 2025, 12:20 | 12.6 | 12.6 °C |
| 12 Aug 2025, 12:05 | 17.2 | 17.2 °C |
| 11 Apr 2025, 13:03 | 11.8 | 11.8 °C |
| 28 Mar 2025, 11:03 | 9.9 | 9.9 °C |
| 13 Feb 2025, 13:36 | 5.4 | 5.4 °C |
| 29 Jan 2025, 09:30 | 6.4 | 6.4 °C |
| 4 Dec 2024, 09:41 | 6.1 | 6.1 °C |
| 18 Nov 2024, 13:30 | 7.2 | 7.2 °C |
| 18 Oct 2024, 10:55 | 11.8 | 11.8 °C |
| 20 Sep 2024, 11:32 | 15.7 | 15.7 °C |
| 19 Aug 2024, 12:04 | 15.7 | 15.7 °C |
| 31 Jul 2024, 12:36 | 18.3 | 18.3 °C |
| 18 Jun 2024, 10:34 | 15.3 | 15.3 °C |
| 18 Jun 2024, 10:33 | 15.2 | 15.2 °C |
| 13 May 2024, 11:04 | 15.1 | 15.1 °C |
| 16 Apr 2024, 09:42 | 9.3 | 9.3 °C |
| 15 Mar 2024, 12:48 | 11.8 | 11.8 °C |
| 19 Feb 2024, 10:20 | 9.3 | 9.3 °C |
| 16 Jan 2024, 11:23 | 2.1 | 2.1 °C |
| 6 Dec 2023, 13:06 | 3.5 | 3.5 °C |
| 21 Nov 2023, 12:36 | 10.1 | 10.1 °C |
| 19 Oct 2023, 12:26 | 12.7 | 12.7 °C |
pH
code 0061
7.38
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 7.38 | 7.38 |
| 2 Jul 2026, 10:28 | 7.65 | 7.65 |
| 9 Jun 2026, 11:52 | 7.45 | 7.45 |
| 8 May 2026, 11:04 | 7.59 | 7.59 |
| 20 Apr 2026, 14:26 | 7.59 | 7.59 |
| 5 Mar 2026, 13:03 | 7.68 | 7.68 |
| 17 Feb 2026, 11:05 | 7.99 | 7.99 |
| 7 Jan 2026, 11:38 | 7.48 | 7.48 |
| 8 Dec 2025, 08:31 | 7.4 | 7.4 |
| 7 Nov 2025, 12:14 | 7.27 | 7.27 |
| 3 Oct 2025, 12:20 | 7.21 | 7.21 |
| 12 Aug 2025, 12:05 | 7.47 | 7.47 |
| 11 Apr 2025, 13:03 | 7.47 | 7.47 |
| 28 Mar 2025, 11:03 | 7.46 | 7.46 |
| 13 Feb 2025, 13:36 | 7.91 | 7.91 |
| 29 Jan 2025, 09:30 | 8.02 | 8.02 |
| 4 Dec 2024, 09:41 | 7.55 | 7.55 |
| 18 Nov 2024, 13:30 | 7.56 | 7.56 |
| 18 Oct 2024, 10:55 | 7.31 | 7.31 |
| 20 Sep 2024, 11:32 | 7.5 | 7.5 |
| 19 Aug 2024, 12:04 | 7.63 | 7.63 |
| 31 Jul 2024, 12:36 | 7.41 | 7.41 |
| 18 Jun 2024, 10:34 | 7.44 | 7.44 |
| 18 Jun 2024, 10:33 | 7.44 | 7.44 |
| 13 May 2024, 11:04 | 7.47 | 7.47 |
| 16 Apr 2024, 09:42 | 7.55 | 7.55 |
| 15 Mar 2024, 12:48 | 7.42 | 7.42 |
| 19 Feb 2024, 10:20 | 7.71 | 7.71 |
| 16 Jan 2024, 11:23 | 7.49 | 7.49 |
| 6 Dec 2023, 13:06 | 7.78 | 7.78 |
| 21 Nov 2023, 12:36 | 7.48 | 7.48 |
| 19 Oct 2023, 12:26 | 7.31 | 7.31 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.19 mg/l
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 0.19 | 0.19 mg/l |
| 2 Jul 2026, 10:28 | 0.14 | 0.14 mg/l |
| 9 Jun 2026, 11:52 | 0.13 | 0.13 mg/l |
| 8 May 2026, 11:04 | 0.075 | 0.075 mg/l |
| 20 Apr 2026, 14:26 | 0.041 | 0.041 mg/l |
| 5 Mar 2026, 13:03 | 0.056 | 0.056 mg/l |
| 17 Feb 2026, 11:05 | 0.037 | 0.037 mg/l |
| 7 Jan 2026, 11:38 | 0.21 | 0.21 mg/l |
| 8 Dec 2025, 08:31 | 0.095 | 0.095 mg/l |
| 7 Nov 2025, 12:14 | 0.17 | 0.17 mg/l |
| 3 Oct 2025, 12:20 | 0.16 | 0.16 mg/l |
| 12 Aug 2025, 12:05 | 0.058 | 0.058 mg/l |
| 11 Apr 2025, 13:03 | 0.053 | 0.053 mg/l |
| 28 Mar 2025, 11:03 | 0.11 | 0.11 mg/l |
| 13 Feb 2025, 13:36 | 0.16 | 0.16 mg/l |
| 29 Jan 2025, 09:30 | 0.12 | 0.12 mg/l |
| 4 Dec 2024, 09:41 | 0.11 | 0.11 mg/l |
| 18 Nov 2024, 13:30 | 0.13 | 0.13 mg/l |
| 18 Oct 2024, 10:55 | 0.084 | 0.084 mg/l |
| 20 Sep 2024, 11:32 | 0.13 | 0.13 mg/l |
| 19 Aug 2024, 12:04 | 0.16 | 0.16 mg/l |
| 31 Jul 2024, 12:36 | 0.18 | 0.18 mg/l |
| 18 Jun 2024, 10:34 | 0.24 | 0.24 mg/l |
| 18 Jun 2024, 10:33 | 0.24 | 0.24 mg/l |
| 13 May 2024, 11:04 | 0.27 | 0.27 mg/l |
| 16 Apr 2024, 09:42 | 0.32 | 0.32 mg/l |
| 15 Mar 2024, 12:48 | 0.25 | 0.25 mg/l |
| 19 Feb 2024, 10:20 | 0.032 | 0.032 mg/l |
| 16 Jan 2024, 11:23 | 0.17 | 0.17 mg/l |
| 6 Dec 2023, 13:06 | 0.24 | 0.24 mg/l |
| 21 Nov 2023, 12:36 | 0.054 | 0.054 mg/l |
| 19 Oct 2023, 12:26 | 0.16 | 0.16 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.591 mg/l
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 0.591 | 0.591 mg/l |
| 2 Jul 2026, 10:28 | 0.568 | 0.568 mg/l |
| 9 Jun 2026, 11:52 | 1.54 | 1.54 mg/l |
| 8 May 2026, 11:04 | 1.76 | 1.76 mg/l |
| 20 Apr 2026, 14:26 | 1.57 | 1.57 mg/l |
| 5 Mar 2026, 13:03 | 6.95 | 6.95 mg/l |
| 17 Feb 2026, 11:05 | 9.96 | 9.96 mg/l |
| 7 Jan 2026, 11:38 | 2.77 | 2.77 mg/l |
| 8 Dec 2025, 08:31 | 6.44 | 6.44 mg/l |
| 7 Nov 2025, 12:14 | 0.521 | 0.521 mg/l |
| 3 Oct 2025, 12:20 | 0.743 | 0.743 mg/l |
| 12 Aug 2025, 12:05 | 0.868 | 0.868 mg/l |
| 11 Apr 2025, 13:03 | 2.28 | 2.28 mg/l |
| 28 Mar 2025, 11:03 | 2.47 | 2.47 mg/l |
| 13 Feb 2025, 13:36 | 5.55 | 5.55 mg/l |
| 29 Jan 2025, 09:30 | 8.85 | 8.85 mg/l |
| 4 Dec 2024, 09:41 | 8.03 | 8.03 mg/l |
| 18 Nov 2024, 13:30 | 1.86 | 1.86 mg/l |
| 18 Oct 2024, 10:55 | 1.85 | 1.85 mg/l |
| 20 Sep 2024, 11:32 | 1.64 | 1.64 mg/l |
| 19 Aug 2024, 12:04 | 1.34 | 1.34 mg/l |
| 31 Jul 2024, 12:36 | 1.93 | 1.93 mg/l |
| 18 Jun 2024, 10:34 | 1.94 | 1.94 mg/l |
| 18 Jun 2024, 10:33 | 1.94 | 1.94 mg/l |
| 13 May 2024, 11:04 | 2.43 | 2.43 mg/l |
| 16 Apr 2024, 09:42 | 2.45 | 2.45 mg/l |
| 15 Mar 2024, 12:48 | 4.65 | 4.65 mg/l |
| 19 Feb 2024, 10:20 | 4.48 | 4.48 mg/l |
| 16 Jan 2024, 11:23 | 4.59 | 4.59 mg/l |
| 6 Dec 2023, 13:06 | 6.15 | 6.15 mg/l |
| 21 Nov 2023, 12:36 | 4.13 | 4.13 mg/l |
| 19 Oct 2023, 12:26 | 1.26 | 1.26 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Jul 2026, 10:28 | 0.011 | 0.011 mg/l |
| 9 Jun 2026, 11:52 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 May 2026, 11:04 | 0.017 | 0.017 mg/l |
| 20 Apr 2026, 14:26 | 0.016 | 0.016 mg/l |
| 5 Mar 2026, 13:03 | 0.029 | 0.029 mg/l |
| 17 Feb 2026, 11:05 | 0.029 | 0.029 mg/l |
| 7 Jan 2026, 11:38 | 0.023 | 0.023 mg/l |
| 8 Dec 2025, 08:31 | 0.02 | 0.02 mg/l |
| 7 Nov 2025, 12:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Oct 2025, 12:20 | 0.011 | 0.011 mg/l |
| 12 Aug 2025, 12:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Apr 2025, 13:03 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 Mar 2025, 11:03 | 0.015 | 0.015 mg/l |
| 13 Feb 2025, 13:36 | 0.028 | 0.028 mg/l |
| 29 Jan 2025, 09:30 | 0.036 | 0.036 mg/l |
| 4 Dec 2024, 09:41 | 0.02 | 0.02 mg/l |
| 18 Nov 2024, 13:30 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Oct 2024, 10:55 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Sep 2024, 11:32 | 0.012 | 0.012 mg/l |
| 19 Aug 2024, 12:04 | 0.017 | 0.017 mg/l |
| 31 Jul 2024, 12:36 | 0.018 | 0.018 mg/l |
| 18 Jun 2024, 10:34 | 0.01 | 0.01 mg/l |
| 18 Jun 2024, 10:33 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 May 2024, 11:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Apr 2024, 09:42 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 Mar 2024, 12:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Feb 2024, 10:20 | 0.033 | 0.033 mg/l |
| 16 Jan 2024, 11:23 | 0.019 | 0.019 mg/l |
| 6 Dec 2023, 13:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Nov 2023, 12:36 | 0.022 | 0.022 mg/l |
| 19 Oct 2023, 12:26 | 0.013 | 0.013 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
993 µS/cm
Sampled 19 Aug 2026, 43 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:41 | 993 | 993 µS/cm |
| 2 Jul 2026, 10:28 | 951 | 951 µS/cm |
| 9 Jun 2026, 11:52 | 997 | 997 µS/cm |
| 8 May 2026, 11:04 | 1015 | 1015 µS/cm |
| 20 Apr 2026, 14:26 | 1032 | 1032 µS/cm |
| 5 Mar 2026, 13:03 | 1024 | 1024 µS/cm |
| 17 Feb 2026, 11:05 | 893 | 893 µS/cm |
| 7 Jan 2026, 11:38 | 1125 | 1125 µS/cm |
| 8 Dec 2025, 08:31 | 1129 | 1129 µS/cm |
| 7 Nov 2025, 12:14 | 1050 | 1050 µS/cm |
| 3 Oct 2025, 12:20 | 941 | 941 µS/cm |
| 12 Aug 2025, 12:05 | 971 | 971 µS/cm |
| 11 Apr 2025, 13:03 | 1031 | 1031 µS/cm |
| 28 Mar 2025, 11:03 | 1014 | 1014 µS/cm |
| 13 Feb 2025, 13:36 | 1085 | 1085 µS/cm |
| 29 Jan 2025, 09:30 | 951 | 951 µS/cm |
| 4 Dec 2024, 09:41 | 979 | 979 µS/cm |
| 18 Nov 2024, 13:30 | 1053 | 1053 µS/cm |
| 18 Oct 2024, 10:55 | 1074 | 1074 µS/cm |
| 20 Sep 2024, 11:32 | 922 | 922 µS/cm |
| 19 Aug 2024, 12:04 | 1040 | 1040 µS/cm |
| 31 Jul 2024, 12:36 | 958 | 958 µS/cm |
| 18 Jun 2024, 10:34 | 1129 | 1129 µS/cm |
| 18 Jun 2024, 10:33 | 1129 | 1129 µS/cm |
| 13 May 2024, 11:04 | 1062 | 1062 µS/cm |
| 16 Apr 2024, 09:42 | 1080 | 1080 µS/cm |
| 15 Mar 2024, 12:48 | 973 | 973 µS/cm |
| 19 Feb 2024, 10:20 | 720 | 720 µS/cm |
| 16 Jan 2024, 11:23 | 947 | 947 µS/cm |
| 6 Dec 2023, 13:06 | 997 | 997 µS/cm |
| 21 Nov 2023, 12:36 | 903 | 903 µS/cm |
| 19 Oct 2023, 12:26 | 1139 | 1139 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 – Aug 2026 | 25.4% 19 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Oct 2023 – Aug 2026 | 2.47 mg/l 19 Aug 2026 |
| Temperature of Water 0076 | River water | 32 | Oct 2023 – Aug 2026 | 16.5 °C 19 Aug 2026 |
| pH 0061 | River water | 32 | Oct 2023 – Aug 2026 | 7.38 19 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Aug 2026 | 0.19 mg/l 19 Aug 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Aug 2026 | 0.591 mg/l 19 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Oct 2023 – Aug 2026 | below 0.01 mg/l 19 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Oct 2023 – Aug 2026 | 993 µS/cm 19 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Aug 2026 | 320 mg/l 19 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Aug 2026 | 0.00137 mg/l 19 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – Oct 2025 | 2.9 mg/l 3 Oct 2025 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Aug 2026 | 0.099 mg/l 19 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Aug 2026 | 0.69 mg/l 19 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.