River Waveney Stanley Carr
EA name: R.WAVENEY STANLEY CARR
Environment Agency sampling point AN-WAV150 · 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
- 25 Aug 2026, 14:0237 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 30 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 643500, 292700As 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, 12 m from the line. A tidal reach: water runs both ways, so no gauge order is claimed.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (28 samples)
Environmental monitoring statutory (EU directives) (4 samples)
Monitoring (national agency policy) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.1%
Sampled 25 Aug 2026, 37 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 98.1 | 98.1% |
| 17 Jul 2026, 14:30 | 89.3 | 89.3% |
| 30 Jun 2026, 12:05 | 74.9 | 74.9% |
| 10 Jun 2026, 12:20 | 87.3 | 87.3% |
| 26 Mar 2026, 12:42 | 89.8 | 89.8% |
| 6 Feb 2026, 13:39 | 95 | 95% |
| 12 Jan 2026, 11:57 | 95.7 | 95.7% |
| 23 Dec 2025, 10:03 | 84 | 84% |
| 20 Nov 2025, 11:24 | 85.3 | 85.3% |
| 10 Nov 2025, 11:51 | 58.5 | 58.5% |
| 21 Oct 2025, 10:41 | 61.5 | 61.5% |
| 8 Sep 2025, 11:55 | 78.5 | 78.5% |
| 8 Jul 2025, 12:10 | 75.7 | 75.7% |
| 6 Jun 2025, 08:31 | 113.7 | 113.7% |
| 4 Mar 2025, 12:39 | 96.5 | 96.5% |
| 13 Feb 2025, 10:40 | 89.6 | 89.6% |
| 30 Jan 2025, 11:46 | 90.9 | 90.9% |
| 4 Dec 2024, 10:33 | 82 | 82% |
| 21 Nov 2024, 11:41 | 85 | 85% |
| 16 Oct 2024, 11:40 | 78.1 | 78.1% |
| 26 Sep 2024, 09:28 | 69.7 | 69.7% |
| 22 Aug 2024, 12:13 | 79.9 | 79.9% |
| 29 Jul 2024, 12:12 | 96.4 | 96.4% |
| 27 Jun 2024, 10:32 | 89.3 | 89.3% |
| 20 May 2024, 13:47 | 113.9 | 113.9% |
| 14 May 2024, 13:43 | 163.5 | 163.5% |
| 16 Apr 2024, 12:53 | 91 | 91% |
| 17 Jan 2024, 12:16 | 90.1 | 90.1% |
| 7 Dec 2023, 09:40 | 80.8 | 80.8% |
| 30 Oct 2023, 12:40 | 78.3 | 78.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.9 mg/l
Sampled 25 Aug 2026, 37 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 8.9 | 8.9 mg/l |
| 17 Jul 2026, 14:30 | 7.7 | 7.7 mg/l |
| 30 Jun 2026, 12:05 | 6.28 | 6.28 mg/l |
| 10 Jun 2026, 12:20 | 8.13 | 8.13 mg/l |
| 26 Mar 2026, 12:42 | 10.2 | 10.2 mg/l |
| 6 Feb 2026, 13:39 | 11.8 | 11.8 mg/l |
| 12 Jan 2026, 11:57 | 12.4 | 12.4 mg/l |
| 23 Dec 2025, 10:03 | 10.1 | 10.1 mg/l |
| 20 Nov 2025, 11:24 | 10.5 | 10.5 mg/l |
| 10 Nov 2025, 11:51 | 6.38 | 6.38 mg/l |
| 21 Oct 2025, 10:41 | 6.39 | 6.39 mg/l |
| 8 Sep 2025, 11:55 | 7.29 | 7.29 mg/l |
| 8 Jul 2025, 12:10 | 6.8 | 6.8 mg/l |
| 6 Jun 2025, 08:31 | 10.9 | 10.9 mg/l |
| 4 Mar 2025, 12:39 | 12 | 12 mg/l |
| 13 Feb 2025, 10:40 | 11.5 | 11.5 mg/l |
| 30 Jan 2025, 11:46 | 11.3 | 11.3 mg/l |
| 4 Dec 2024, 10:33 | 10 | 10 mg/l |
| 21 Nov 2024, 11:41 | 11.2 | 11.2 mg/l |
| 16 Oct 2024, 11:40 | 8.57 | 8.57 mg/l |
| 26 Sep 2024, 09:28 | 6.85 | 6.85 mg/l |
| 22 Aug 2024, 12:13 | 7.29 | 7.29 mg/l |
| 29 Jul 2024, 12:12 | 8.33 | 8.33 mg/l |
| 27 Jun 2024, 10:32 | 7.82 | 7.82 mg/l |
| 20 May 2024, 13:47 | 10.7 | 10.7 mg/l |
| 14 May 2024, 13:43 | 15.1 | 15.1 mg/l |
| 16 Apr 2024, 12:53 | 9.74 | 9.74 mg/l |
| 17 Jan 2024, 12:16 | 12.3 | 12.3 mg/l |
| 7 Dec 2023, 09:40 | 10.4 | 10.4 mg/l |
| 30 Oct 2023, 12:40 | 8.54 | 8.54 mg/l |
Water temperature
code 0076 · °C
20 °C
Sampled 25 Aug 2026, 37 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 20 | 20 °C |
| 17 Jul 2026, 14:30 | 22.6 | 22.6 °C |
| 30 Jun 2026, 12:05 | 24.1 | 24.1 °C |
| 10 Jun 2026, 12:20 | 18.7 | 18.7 °C |
| 26 Mar 2026, 12:42 | 9.5 | 9.5 °C |
| 6 Feb 2026, 13:39 | 6.2 | 6.2 °C |
| 12 Jan 2026, 11:57 | 4.3 | 4.3 °C |
| 23 Dec 2025, 10:03 | 7.2 | 7.2 °C |
| 20 Nov 2025, 11:24 | 6.5 | 6.5 °C |
| 10 Nov 2025, 11:51 | 11.4 | 11.4 °C |
| 21 Oct 2025, 10:41 | 13.5 | 13.5 °C |
| 8 Sep 2025, 11:55 | 18.8 | 18.8 °C |
| 8 Jul 2025, 12:10 | 20.5 | 20.5 °C |
| 6 Jun 2025, 08:31 | 17.1 | 17.1 °C |
| 4 Mar 2025, 12:39 | 5.9 | 5.9 °C |
| 13 Feb 2025, 10:40 | 4.8 | 4.8 °C |
| 30 Jan 2025, 11:46 | 6.1 | 6.1 °C |
| 4 Dec 2024, 10:33 | 6.7 | 6.7 °C |
| 21 Nov 2024, 11:41 | 3.8 | 3.8 °C |
| 16 Oct 2024, 11:40 | 11.1 | 11.1 °C |
| 26 Sep 2024, 09:28 | 16.1 | 16.1 °C |
| 22 Aug 2024, 12:13 | 19.7 | 19.7 °C |
| 29 Jul 2024, 12:12 | 22.5 | 22.5 °C |
| 27 Jun 2024, 10:32 | 21.8 | 21.8 °C |
| 20 May 2024, 13:47 | 18.3 | 18.3 °C |
| 14 May 2024, 13:43 | 19.1 | 19.1 °C |
| 16 Apr 2024, 12:53 | 12.2 | 12.2 °C |
| 17 Jan 2024, 12:16 | 2.3 | 2.3 °C |
| 7 Dec 2023, 09:40 | 4.7 | 4.7 °C |
| 30 Oct 2023, 12:40 | 11.4 | 11.4 °C |
pH
code 0061
8.1
Sampled 25 Aug 2026, 37 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 8.1 | 8.1 |
| 17 Jul 2026, 14:30 | 8.35 | 8.35 |
| 30 Jun 2026, 12:05 | 8.12 | 8.12 |
| 10 Jun 2026, 12:20 | 7.89 | 7.89 |
| 26 Mar 2026, 12:42 | 8.19 | 8.19 |
| 6 Feb 2026, 13:39 | 8.14 | 8.14 |
| 12 Jan 2026, 11:57 | 7.91 | 7.91 |
| 23 Dec 2025, 10:03 | 7.96 | 7.96 |
| 20 Nov 2025, 11:24 | 7.84 | 7.84 |
| 10 Nov 2025, 11:51 | 7.72 | 7.72 |
| 21 Oct 2025, 10:41 | 7.74 | 7.74 |
| 8 Sep 2025, 11:55 | 7.96 | 7.96 |
| 8 Jul 2025, 12:10 | 7.85 | 7.85 |
| 6 Jun 2025, 08:31 | 8.11 | 8.11 |
| 4 Mar 2025, 12:39 | 8.18 | 8.18 |
| 13 Feb 2025, 10:40 | 8.05 | 8.05 |
| 30 Jan 2025, 11:46 | 8.18 | 8.18 |
| 4 Dec 2024, 10:33 | 7.86 | 7.86 |
| 21 Nov 2024, 11:41 | 8.03 | 8.03 |
| 16 Oct 2024, 11:40 | 7.79 | 7.79 |
| 26 Sep 2024, 09:28 | 7.93 | 7.93 |
| 22 Aug 2024, 12:13 | 8 | 8 |
| 29 Jul 2024, 12:12 | 7.97 | 7.97 |
| 27 Jun 2024, 10:32 | 7.92 | 7.92 |
| 20 May 2024, 13:47 | 8.06 | 8.06 |
| 14 May 2024, 13:43 | 8.2 | 8.2 |
| 16 Apr 2024, 12:53 | 8.15 | 8.15 |
| 17 Jan 2024, 12:16 | 8.16 | 8.16 |
| 7 Dec 2023, 09:40 | 8.06 | 8.06 |
| 30 Oct 2023, 12:40 | 7.68 | 7.68 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 25 Aug 2026, 37 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2026, 14:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jun 2026, 12:05 | 0.051 | 0.051 mg/l |
| 10 Jun 2026, 12:20 | 0.064 | 0.064 mg/l |
| 26 Mar 2026, 12:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2026, 13:39 | 0.11 | 0.11 mg/l |
| 12 Jan 2026, 11:57 | 0.065 | 0.065 mg/l |
| 23 Dec 2025, 10:03 | 0.089 | 0.089 mg/l |
| 10 Nov 2025, 11:51 | 0.072 | 0.072 mg/l |
| 21 Oct 2025, 10:41 | 0.079 | 0.079 mg/l |
| 8 Apr 2025, 10:04 | 0.049 | 0.049 mg/l |
| 4 Mar 2025, 12:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2025, 10:40 | 0.081 | 0.081 mg/l |
| 30 Jan 2025, 11:46 | 0.046 | 0.046 mg/l |
| 4 Dec 2024, 10:33 | 0.043 | 0.043 mg/l |
| 21 Nov 2024, 11:41 | 0.036 | 0.036 mg/l |
| 16 Oct 2024, 11:40 | 0.079 | 0.079 mg/l |
| 26 Sep 2024, 09:28 | 0.035 | 0.035 mg/l |
| 22 Aug 2024, 12:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jul 2024, 12:12 | 0.051 | 0.051 mg/l |
| 27 Jun 2024, 10:32 | 0.068 | 0.068 mg/l |
| 20 May 2024, 13:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2024, 13:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2024, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jan 2024, 12:16 | 0.057 | 0.057 mg/l |
| 7 Dec 2023, 09:40 | 0.049 | 0.049 mg/l |
| 30 Oct 2023, 12:40 | 0.074 | 0.074 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.196 mg/l
Sampled 25 Aug 2026, 37 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 0.196 | 0.196 mg/l |
| 17 Jul 2026, 14:30 | 0.536 | 0.536 mg/l |
| 30 Jun 2026, 12:05 | 0.848 | 0.848 mg/l |
| 10 Jun 2026, 12:20 | 1.09 | 1.09 mg/l |
| 26 Mar 2026, 12:42 | 3.98 | 3.98 mg/l |
| 6 Feb 2026, 13:39 | 11.9 | 11.9 mg/l |
| 12 Jan 2026, 11:57 | 11 | 11 mg/l |
| 23 Dec 2025, 10:03 | 11.9 | 11.9 mg/l |
| 10 Nov 2025, 11:51 | 1.78 | 1.78 mg/l |
| 21 Oct 2025, 10:41 | 1.19 | 1.19 mg/l |
| 8 Apr 2025, 10:04 | 2.89 | 2.89 mg/l |
| 4 Mar 2025, 12:39 | 9.97 | 9.97 mg/l |
| 13 Feb 2025, 10:40 | 7.86 | 7.86 mg/l |
| 30 Jan 2025, 11:46 | 13 | 13 mg/l |
| 4 Dec 2024, 10:33 | 10.9 | 10.9 mg/l |
| 21 Nov 2024, 11:41 | 3.29 | 3.29 mg/l |
| 16 Oct 2024, 11:40 | 8.77 | 8.77 mg/l |
| 26 Sep 2024, 09:28 | 1.3 | 1.3 mg/l |
| 22 Aug 2024, 12:13 | 1.1 | 1.1 mg/l |
| 29 Jul 2024, 12:12 | 1.89 | 1.89 mg/l |
| 27 Jun 2024, 10:32 | 1.99 | 1.99 mg/l |
| 20 May 2024, 13:47 | 2.78 | 2.78 mg/l |
| 14 May 2024, 13:43 | 3.38 | 3.38 mg/l |
| 16 Apr 2024, 12:53 | 3.19 | 3.19 mg/l |
| 17 Jan 2024, 12:16 | 5.58 | 5.58 mg/l |
| 7 Dec 2023, 09:40 | 9.25 | 9.25 mg/l |
| 30 Oct 2023, 12:40 | 7.72 | 7.72 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.13 mg/l
Sampled 25 Aug 2026, 37 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 0.13 | 0.13 mg/l |
| 17 Jul 2026, 14:30 | 0.16 | 0.16 mg/l |
| 30 Jun 2026, 12:05 | 0.13 | 0.13 mg/l |
| 10 Jun 2026, 12:20 | 0.11 | 0.11 mg/l |
| 26 Mar 2026, 12:42 | 0.068 | 0.068 mg/l |
| 6 Feb 2026, 13:39 | 0.094 | 0.094 mg/l |
| 12 Jan 2026, 11:57 | 0.14 | 0.14 mg/l |
| 23 Dec 2025, 10:03 | 0.12 | 0.12 mg/l |
| 10 Nov 2025, 11:51 | 0.088 | 0.088 mg/l |
| 21 Oct 2025, 10:41 | 0.13 | 0.13 mg/l |
| 8 Apr 2025, 10:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Mar 2025, 12:39 | 0.076 | 0.076 mg/l |
| 13 Feb 2025, 10:40 | 0.1 | 0.1 mg/l |
| 30 Jan 2025, 11:46 | 0.12 | 0.12 mg/l |
| 4 Dec 2024, 10:33 | 0.11 | 0.11 mg/l |
| 21 Nov 2024, 11:41 | 0.095 | 0.095 mg/l |
| 16 Oct 2024, 11:40 | 0.12 | 0.12 mg/l |
| 26 Sep 2024, 09:28 | 0.12 | 0.12 mg/l |
| 22 Aug 2024, 12:13 | 0.14 | 0.14 mg/l |
| 29 Jul 2024, 12:12 | 0.13 | 0.13 mg/l |
| 27 Jun 2024, 10:32 | 0.091 | 0.091 mg/l |
| 20 May 2024, 13:47 | 0.024 | 0.024 mg/l |
| 14 May 2024, 13:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Apr 2024, 12:53 | 0.061 | 0.061 mg/l |
| 17 Jan 2024, 12:16 | 0.1 | 0.1 mg/l |
| 7 Dec 2023, 09:40 | 0.12 | 0.12 mg/l |
| 30 Oct 2023, 12:40 | 0.12 | 0.12 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1034 µS/cm
Sampled 25 Aug 2026, 37 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Aug 2026, 14:02 | 1034 | 1034 µS/cm |
| 17 Jul 2026, 14:30 | 1231 | 1231 µS/cm |
| 30 Jun 2026, 12:05 | 1071 | 1071 µS/cm |
| 10 Jun 2026, 12:20 | 977 | 977 µS/cm |
| 26 Mar 2026, 12:42 | 988 | 988 µS/cm |
| 6 Feb 2026, 13:39 | 875 | 875 µS/cm |
| 12 Jan 2026, 11:57 | 772 | 772 µS/cm |
| 23 Dec 2025, 10:03 | 995 | 995 µS/cm |
| 20 Nov 2025, 11:24 | 843 | 843 µS/cm |
| 10 Nov 2025, 11:51 | 1031 | 1031 µS/cm |
| 21 Oct 2025, 10:41 | 1051 | 1051 µS/cm |
| 8 Sep 2025, 11:55 | 979 | 979 µS/cm |
| 8 Jul 2025, 12:10 | 980 | 980 µS/cm |
| 6 Jun 2025, 08:31 | 930 | 930 µS/cm |
| 4 Mar 2025, 12:39 | 884 | 884 µS/cm |
| 13 Feb 2025, 10:40 | 984 | 984 µS/cm |
| 30 Jan 2025, 11:46 | 803 | 803 µS/cm |
| 4 Dec 2024, 10:33 | 888 | 888 µS/cm |
| 21 Nov 2024, 11:41 | 996 | 996 µS/cm |
| 16 Oct 2024, 11:40 | 859 | 859 µS/cm |
| 26 Sep 2024, 09:28 | 1012 | 1012 µS/cm |
| 22 Aug 2024, 12:13 | 1000 | 1000 µS/cm |
| 29 Jul 2024, 12:12 | 941 | 941 µS/cm |
| 27 Jun 2024, 10:32 | 979 | 979 µS/cm |
| 20 May 2024, 13:47 | 921 | 921 µS/cm |
| 14 May 2024, 13:43 | 858 | 858 µS/cm |
| 16 Apr 2024, 12:53 | 900 | 900 µS/cm |
| 17 Jan 2024, 12:16 | 879 | 879 µS/cm |
| 7 Dec 2023, 09:40 | 866 | 866 µS/cm |
| 30 Oct 2023, 12:40 | 723 | 723 µS/cm |
Everything measured here
93 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 93 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Oct 2023 – Aug 2026 | 98.1% 25 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Aug 2026 | 8.9 mg/l 25 Aug 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Aug 2026 | 20 °C 25 Aug 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Aug 2026 | 8.1 25 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Aug 2026 | below 0.03 mg/l 25 Aug 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Aug 2026 | 0.196 mg/l 25 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Aug 2026 | 0.13 mg/l 25 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Aug 2026 | 1034 µS/cm 25 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Dec 2023 – Jan 2025 | below 0.004 µg/l 30 Jan 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Dec 2023 – Jan 2025 | below 0.005 µg/l 30 Jan 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Oct 2023 – Jun 2026 | 280 mg/l 30 Jun 2026 |
| Alkalinity, Dissolved as CaCO3 7867 | River water | 4 | Jun 2026 – Aug 2026 | 280 mg/l 25 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Oct 2023 – Jun 2026 | 0.00258 mg/l 30 Jun 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | River water | 4 | Jun 2026 – Aug 2026 | below 0.03 mg/l 25 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 17 | Apr 2024 – Jun 2026 | below 1 mg/l 30 Jun 2026 |
| Cadmium 0108 | River water | 32 | Oct 2023 – Aug 2026 | below 0.01 µg/l 25 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 4 | Oct 2023 – May 2024 | below 0.01 µg/l 20 May 2024 |
| Calcium, Dissolved 0239 | River water | 4 | Oct 2023 – May 2024 | 150 mg/l 20 May 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 4 | Oct 2023 – May 2024 | 7.2 mg/l 20 May 2024 |
| Chloride, GF/C Filtered 7190 | River water | 4 | Jun 2026 – Aug 2026 | 100 mg/l 25 Aug 2026 |
| Copper 6452 | River water | 32 | Oct 2023 – Aug 2026 | 1.5 µg/l 25 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 4 | Oct 2023 – May 2024 | 1 text result 20 May 2024 |
| HCH -gamma :- {Lindane} 0499 | River water | 32 | Oct 2023 – Aug 2026 | below 0.003 µg/l 25 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| Lead 0050 | River water | 32 | Oct 2023 – Aug 2026 | 0.11 µg/l 25 Aug 2026 |
| Lead : BLM Bioavailable 3377 | River water | 4 | Oct 2023 – May 2024 | 0.01 µg/l 20 May 2024 |
| Lead, Dissolved 0052 | River water | 4 | Oct 2023 – May 2024 | below 0.1 µg/l 20 May 2024 |
| Magnesium, Dissolved 0235 | River water | 4 | Oct 2023 – May 2024 | 7.6 mg/l 20 May 2024 |
| Mercury 0105 | River water | 30 | Dec 2023 – Aug 2026 | below 0.01 µg/l 25 Aug 2026 |
| Mercury, Dissolved 0103 | River water | 3 | Dec 2023 – May 2024 | below 0.01 µg/l 20 May 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Nickel 6462 | River water | 29 | Apr 2024 – Aug 2026 | 1.5 µg/l 25 Aug 2026 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Aug 2026 | below 0.004 mg/l 25 Aug 2026 |
| Nitrite, Filtered as N 6485 | River water | 4 | Jun 2026 – Aug 2026 | 0.005 mg/l 25 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 25 | Oct 2023 – Aug 2026 | 0.55 mg/l 25 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Aug 2026 | 0.2 mg/l 25 Aug 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | River water | 4 | Jun 2026 – Aug 2026 | 0.22 mg/l 25 Aug 2026 |
| Orthophosphate, Filtered as P 9856 | River water | 4 | Jun 2026 – Aug 2026 | 0.12 mg/l 25 Aug 2026 |
| PCB - 028 9768 | River water | 32 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 052 9769 | River water | 30 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 101 9770 | River water | 32 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 118 9771 | River water | 32 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 138 9772 | River water | 32 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 153 9773 | River water | 32 | Oct 2023 – Aug 2026 | below 0.001 µg/l 25 Aug 2026 |
| PCB - 180 9774 | River water | 32 | Oct 2023 – Aug 2026 | below 0.002 µg/l 25 Aug 2026 |
| PCB : Total 0753 | River water | 30 | Oct 2023 – Aug 2026 | below 0.008 µg/l 25 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jan 2025 – Jan 2025 | 0.0018 µg/l 30 Jan 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jan 2025 – Jan 2025 | 0.0022 µg/l 30 Jan 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Dec 2023 – Jan 2025 | 0.00081 µg/l 30 Jan 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Perfluorodecanoic acid 8892 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Dec 2023 – Jan 2025 | below 0.005 µg/l 30 Jan 2025 |
| Perfluorododecanoic acid 8894 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jan 2025 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Dec 2023 – Jan 2025 | 0.00095 µg/l 30 Jan 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorononanoic acid 8891 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Dec 2023 – Jan 2025 | below 0.001 µg/l 30 Jan 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluorooctanoic acid 8890 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Dec 2023 – Jan 2025 | below 0.0005 µg/l 30 Jan 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jan 2025 – Jan 2025 | 0.0011 µg/l 30 Jan 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Dec 2023 – Jan 2025 | below 0.006 µg/l 30 Jan 2025 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Dec 2023 – Jan 2025 | below 0.005 µg/l 30 Jan 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Dec 2023 – Jan 2025 | below 0.004 µg/l 30 Jan 2025 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Dec 2023 – Jan 2025 | below 0.002 µg/l 30 Jan 2025 |
| Phosphorus, Total as P 0348 | River water | 25 | Oct 2023 – Aug 2026 | 0.12 mg/l 25 Aug 2026 |
| Silicate, Filtered as SiO2 9857 | River water | 4 | Jun 2026 – Aug 2026 | 4 mg/l 25 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 27 | Oct 2023 – Aug 2026 | below 3 mg/l 25 Aug 2026 |
| Zinc 6455 | River water | 32 | Oct 2023 – Aug 2026 | 0.81 µg/l 25 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.