Hampshire Avon at Amesbury
EA name: HAMPSHIRE AVON AT AMESBURY
Environment Agency sampling point SW-50210316 · 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
- 12 Aug 2026, 09:5150 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 Environmental monitoring statutory (EU directives)
- Where
- National Grid 415105, 141306As published, to the nearest 1 m. Open in a map
- River, by its own name
- Hampshire Avon
- River, by the map
- River AvonPlaced on a river whose name partly matches its own, 1 m from the line.
- Next gauge downstream
- Salisbury Ashley Road On the River Avon · 18 km along the river
- Nearest gauge upstream
- Amesbury On the River Avon · 0.1 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (17 samples)
Monitoring (national agency policy) (15 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.9%
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 91.9 | 91.9% |
| 24 Jul 2026, 11:35 | 107.7 | 107.7% |
| 10 Jun 2026, 11:24 | 100.5 | 100.5% |
| 29 May 2026, 10:40 | 101.4 | 101.4% |
| 7 Apr 2026, 10:01 | 98.2 | 98.2% |
| 10 Mar 2026, 15:02 | 104.6 | 104.6% |
| 2 Feb 2026, 09:46 | 92.3 | 92.3% |
| 7 Jan 2026, 12:51 | 97.8 | 97.8% |
| 4 Dec 2025, 11:13 | 94.8 | 94.8% |
| 19 Nov 2025, 12:57 | 96.9 | 96.9% |
| 10 Oct 2025, 10:51 | 89.3 | 89.3% |
| 26 Sep 2025, 13:50 | 99.4 | 99.4% |
| 28 Aug 2025, 12:43 | 94.5 | 94.5% |
| 18 Aug 2025, 14:47 | 97.8 | 97.8% |
| 25 Jul 2025, 13:09 | 113.1 | 113.1% |
| 18 Jun 2025, 12:00 | 110.6 | 110.6% |
| 9 Apr 2025, 09:45 | 98.7 | 98.7% |
| 24 Mar 2025, 11:03 | 100.5 | 100.5% |
| 3 Feb 2025, 11:06 | 94.9 | 94.9% |
| 6 Jan 2025, 09:15 | 91.6 | 91.6% |
| 3 Dec 2024, 11:21 | 92.4 | 92.4% |
| 14 Nov 2024, 09:45 | 93.3 | 93.3% |
| 10 Oct 2024, 10:12 | 86.3 | 86.3% |
| 5 Sep 2024, 11:05 | 90.4 | 90.4% |
| 13 Aug 2024, 11:11 | 96.3 | 96.3% |
| 2 Jul 2024, 11:49 | 102.5 | 102.5% |
| 26 Mar 2024, 10:37 | 100.6 | 100.6% |
| 1 Feb 2024, 10:38 | 94.6 | 94.6% |
| 12 Jan 2024, 11:10 | 91.3 | 91.3% |
| 7 Dec 2023, 11:13 | 92.1 | 92.1% |
| 10 Nov 2023, 14:03 | 90 | 90% |
| 19 Oct 2023, 10:48 | 90.6 | 90.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.84 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 8.84 | 8.84 mg/l |
| 24 Jul 2026, 11:35 | 10.3 | 10.3 mg/l |
| 10 Jun 2026, 11:24 | 10.6 | 10.6 mg/l |
| 29 May 2026, 10:40 | 9.96 | 9.96 mg/l |
| 7 Apr 2026, 10:01 | 11.2 | 11.2 mg/l |
| 10 Mar 2026, 15:02 | 11.6 | 11.6 mg/l |
| 2 Feb 2026, 09:46 | 10.9 | 10.9 mg/l |
| 7 Jan 2026, 12:51 | 12.1 | 12.1 mg/l |
| 4 Dec 2025, 11:13 | 11.2 | 11.2 mg/l |
| 19 Nov 2025, 12:57 | 11.7 | 11.7 mg/l |
| 10 Oct 2025, 10:51 | 9.51 | 9.51 mg/l |
| 26 Sep 2025, 13:50 | 11 | 11 mg/l |
| 28 Aug 2025, 12:43 | 9.5 | 9.5 mg/l |
| 18 Aug 2025, 14:47 | 9.39 | 9.39 mg/l |
| 25 Jul 2025, 13:09 | 10.7 | 10.7 mg/l |
| 18 Jun 2025, 12:00 | 10.5 | 10.5 mg/l |
| 9 Apr 2025, 09:45 | 11.4 | 11.4 mg/l |
| 24 Mar 2025, 11:03 | 11.3 | 11.3 mg/l |
| 3 Feb 2025, 11:06 | 11.4 | 11.4 mg/l |
| 6 Jan 2025, 09:15 | 10.8 | 10.8 mg/l |
| 3 Dec 2024, 11:21 | 10.6 | 10.6 mg/l |
| 14 Nov 2024, 09:45 | 10.5 | 10.5 mg/l |
| 10 Oct 2024, 10:12 | 9.3 | 9.3 mg/l |
| 5 Sep 2024, 11:05 | 9.35 | 9.35 mg/l |
| 13 Aug 2024, 11:11 | 9.46 | 9.46 mg/l |
| 2 Jul 2024, 11:49 | 10.4 | 10.4 mg/l |
| 26 Mar 2024, 10:37 | 11.3 | 11.3 mg/l |
| 1 Feb 2024, 10:38 | 10.9 | 10.9 mg/l |
| 12 Jan 2024, 11:10 | 11 | 11 mg/l |
| 7 Dec 2023, 11:13 | 10.9 | 10.9 mg/l |
| 10 Nov 2023, 14:03 | 10.1 | 10.1 mg/l |
| 19 Oct 2023, 10:48 | 9.61 | 9.61 mg/l |
Water temperature
code 0076 · °C
17.1 °C
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 17.1 | 17.1 °C |
| 24 Jul 2026, 11:35 | 17.3 | 17.3 °C |
| 10 Jun 2026, 11:24 | 12.7 | 12.7 °C |
| 29 May 2026, 10:40 | 16.1 | 16.1 °C |
| 7 Apr 2026, 10:01 | 9.6 | 9.6 °C |
| 10 Mar 2026, 15:02 | 10.6 | 10.6 °C |
| 2 Feb 2026, 09:46 | 8.1 | 8.1 °C |
| 7 Jan 2026, 12:51 | 6.1 | 6.1 °C |
| 4 Dec 2025, 11:13 | 8.1 | 8.1 °C |
| 19 Nov 2025, 12:57 | 7.1 | 7.1 °C |
| 10 Oct 2025, 10:51 | 12.4 | 12.4 °C |
| 26 Sep 2025, 13:50 | 10.9 | 10.9 °C |
| 28 Aug 2025, 12:43 | 15 | 15 °C |
| 18 Aug 2025, 14:47 | 17.2 | 17.2 °C |
| 25 Jul 2025, 13:09 | 17.9 | 17.9 °C |
| 18 Jun 2025, 12:00 | 17.8 | 17.8 °C |
| 9 Apr 2025, 09:45 | 9 | 9 °C |
| 24 Mar 2025, 11:03 | 9.9 | 9.9 °C |
| 3 Feb 2025, 11:06 | 7.5 | 7.5 °C |
| 6 Jan 2025, 09:15 | 8.3 | 8.3 °C |
| 3 Dec 2024, 11:21 | 9.1 | 9.1 °C |
| 14 Nov 2024, 09:45 | 10 | 10 °C |
| 10 Oct 2024, 10:12 | 11.9 | 11.9 °C |
| 5 Sep 2024, 11:05 | 13.7 | 13.7 °C |
| 13 Aug 2024, 11:11 | 16.1 | 16.1 °C |
| 2 Jul 2024, 11:49 | 14.6 | 14.6 °C |
| 26 Mar 2024, 10:37 | 10.2 | 10.2 °C |
| 1 Feb 2024, 10:38 | 9 | 9 °C |
| 12 Jan 2024, 11:10 | 7.4 | 7.4 °C |
| 7 Dec 2023, 11:13 | 7.8 | 7.8 °C |
| 10 Nov 2023, 14:03 | 10 | 10 °C |
| 19 Oct 2023, 10:48 | 12.6 | 12.6 °C |
pH
code 0061
7.96
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 7.96 | 7.96 |
| 24 Jul 2026, 11:35 | 8.02 | 8.02 |
| 10 Jun 2026, 11:24 | 8.02 | 8.02 |
| 29 May 2026, 10:40 | 8 | 8 |
| 7 Apr 2026, 10:01 | 8.04 | 8.04 |
| 10 Mar 2026, 15:02 | 7.9 | 7.9 |
| 2 Feb 2026, 09:46 | 8.01 | 8.01 |
| 7 Jan 2026, 12:51 | 8.07 | 8.07 |
| 4 Dec 2025, 11:13 | 8.02 | 8.02 |
| 19 Nov 2025, 12:57 | 8.03 | 8.03 |
| 10 Oct 2025, 10:51 | 7.94 | 7.94 |
| 26 Sep 2025, 13:50 | 8.19 | 8.19 |
| 28 Aug 2025, 12:43 | 8.12 | 8.12 |
| 18 Aug 2025, 14:47 | 8.06 | 8.06 |
| 25 Jul 2025, 13:09 | 8.19 | 8.19 |
| 18 Jun 2025, 12:00 | 8.11 | 8.11 |
| 9 Apr 2025, 09:45 | 8.04 | 8.04 |
| 24 Mar 2025, 11:03 | 8.02 | 8.02 |
| 3 Feb 2025, 11:06 | 7.98 | 7.98 |
| 6 Jan 2025, 09:15 | 7.92 | 7.92 |
| 3 Dec 2024, 11:21 | 7.77 | 7.77 |
| 14 Nov 2024, 09:45 | 7.9 | 7.9 |
| 10 Oct 2024, 10:12 | 7.98 | 7.98 |
| 5 Sep 2024, 11:05 | 8.11 | 8.11 |
| 13 Aug 2024, 11:11 | 8.43 | 8.43 |
| 2 Jul 2024, 11:49 | 8.15 | 8.15 |
| 26 Mar 2024, 10:37 | 7.92 | 7.92 |
| 1 Feb 2024, 10:38 | 7.84 | 7.84 |
| 12 Jan 2024, 11:10 | 7.98 | 7.98 |
| 7 Dec 2023, 11:13 | 7.85 | 7.85 |
| 10 Nov 2023, 14:03 | 7.72 | 7.72 |
| 19 Oct 2023, 10:48 | 7.9 | 7.9 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.032 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 0.032 | 0.032 mg/l |
| 24 Jul 2026, 11:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jun 2026, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2026, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2026, 10:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2026, 15:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 09:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 12:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 11:13 | 0.039 | 0.039 mg/l |
| 19 Nov 2025, 12:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2025, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Sep 2025, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Aug 2025, 12:43 | 0.04 | 0.04 mg/l |
| 18 Aug 2025, 14:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2025, 13:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jun 2025, 12:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2025, 09:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2025, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 11:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2025, 09:15 | 0.05 | 0.05 mg/l |
| 3 Dec 2024, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Nov 2024, 09:45 | 0.032 | 0.032 mg/l |
| 10 Oct 2024, 10:12 | 0.038 | 0.038 mg/l |
| 5 Sep 2024, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Aug 2024, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2024, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Mar 2024, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Feb 2024, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2024, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Dec 2023, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Nov 2023, 14:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Oct 2023, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.26 mg/l
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 6.26 | 6.26 mg/l |
| 24 Jul 2026, 11:35 | 5.97 | 5.97 mg/l |
| 10 Jun 2026, 11:24 | 6.08 | 6.08 mg/l |
| 29 May 2026, 10:40 | 6.38 | 6.38 mg/l |
| 7 Apr 2026, 10:01 | 6.29 | 6.29 mg/l |
| 10 Mar 2026, 15:02 | 6.09 | 6.09 mg/l |
| 2 Feb 2026, 09:46 | 5.19 | 5.19 mg/l |
| 7 Jan 2026, 12:51 | 6.78 | 6.78 mg/l |
| 4 Dec 2025, 11:13 | 5.77 | 5.77 mg/l |
| 19 Nov 2025, 12:57 | 5.89 | 5.89 mg/l |
| 10 Oct 2025, 10:51 | 6.28 | 6.28 mg/l |
| 26 Sep 2025, 13:50 | 6.89 | 6.89 mg/l |
| 28 Aug 2025, 12:43 | 6.48 | 6.48 mg/l |
| 18 Aug 2025, 14:47 | 6.48 | 6.48 mg/l |
| 25 Jul 2025, 13:09 | 6.38 | 6.38 mg/l |
| 18 Jun 2025, 12:00 | 6.47 | 6.47 mg/l |
| 9 Apr 2025, 09:45 | 6.59 | 6.59 mg/l |
| 24 Mar 2025, 11:03 | 6.39 | 6.39 mg/l |
| 3 Feb 2025, 11:06 | 6.09 | 6.09 mg/l |
| 6 Jan 2025, 09:15 | 4.78 | 4.78 mg/l |
| 3 Dec 2024, 11:21 | 6.18 | 6.18 mg/l |
| 14 Nov 2024, 09:45 | 6.19 | 6.19 mg/l |
| 10 Oct 2024, 10:12 | 4.08 | 4.08 mg/l |
| 5 Sep 2024, 11:05 | 6.69 | 6.69 mg/l |
| 13 Aug 2024, 11:11 | 6.28 | 6.28 mg/l |
| 2 Jul 2024, 11:49 | 6.28 | 6.28 mg/l |
| 26 Mar 2024, 10:37 | 6.39 | 6.39 mg/l |
| 1 Feb 2024, 10:38 | 6.48 | 6.48 mg/l |
| 12 Jan 2024, 11:10 | 5.99 | 5.99 mg/l |
| 7 Dec 2023, 11:13 | 5.78 | 5.78 mg/l |
| 10 Nov 2023, 14:03 | 5.19 | 5.19 mg/l |
| 19 Oct 2023, 10:48 | 5.49 | 5.49 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.061 mg/l
Sampled 12 Aug 2026, 50 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 0.061 | 0.061 mg/l |
| 24 Jul 2026, 11:35 | 0.043 | 0.043 mg/l |
| 10 Jun 2026, 11:24 | 0.086 | 0.086 mg/l |
| 29 May 2026, 10:40 | 0.074 | 0.074 mg/l |
| 7 Apr 2026, 10:01 | 0.065 | 0.065 mg/l |
| 10 Mar 2026, 15:02 | 0.082 | 0.082 mg/l |
| 2 Feb 2026, 09:46 | 0.12 | 0.12 mg/l |
| 7 Jan 2026, 12:51 | 0.083 | 0.083 mg/l |
| 4 Dec 2025, 11:13 | 0.13 | 0.13 mg/l |
| 19 Nov 2025, 12:57 | 0.12 | 0.12 mg/l |
| 10 Oct 2025, 10:51 | 0.11 | 0.11 mg/l |
| 26 Sep 2025, 13:50 | 0.095 | 0.095 mg/l |
| 28 Aug 2025, 12:43 | 0.088 | 0.088 mg/l |
| 18 Aug 2025, 14:47 | 0.084 | 0.084 mg/l |
| 25 Jul 2025, 13:09 | 0.085 | 0.085 mg/l |
| 18 Jun 2025, 12:00 | 0.089 | 0.089 mg/l |
| 9 Apr 2025, 09:45 | 0.042 | 0.042 mg/l |
| 24 Mar 2025, 11:03 | 0.06 | 0.06 mg/l |
| 3 Feb 2025, 11:06 | 0.089 | 0.089 mg/l |
| 6 Jan 2025, 09:15 | 0.21 | 0.21 mg/l |
| 14 Nov 2024, 09:45 | 0.077 | 0.077 mg/l |
| 10 Oct 2024, 10:12 | 0.23 | 0.23 mg/l |
| 5 Sep 2024, 11:05 | 0.1 | 0.1 mg/l |
| 13 Aug 2024, 11:11 | 0.091 | 0.091 mg/l |
| 2 Jul 2024, 11:49 | 0.073 | 0.073 mg/l |
| 26 Mar 2024, 10:37 | 0.08 | 0.08 mg/l |
| 12 Jan 2024, 11:10 | 0.093 | 0.093 mg/l |
| 7 Dec 2023, 11:13 | 0.14 | 0.14 mg/l |
| 10 Nov 2023, 14:03 | 0.12 | 0.12 mg/l |
| 19 Oct 2023, 10:48 | 0.092 | 0.092 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
594 µS/cm
Sampled 12 Aug 2026, 50 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Aug 2026, 09:51 | 594 | 594 µS/cm |
| 24 Jul 2026, 11:35 | 580 | 580 µS/cm |
| 10 Jun 2026, 11:24 | 587 | 587 µS/cm |
| 29 May 2026, 10:40 | 580 | 580 µS/cm |
| 7 Apr 2026, 10:01 | 582 | 582 µS/cm |
| 10 Mar 2026, 15:02 | 583 | 583 µS/cm |
| 2 Feb 2026, 09:46 | 562 | 562 µS/cm |
| 7 Jan 2026, 12:51 | 614 | 614 µS/cm |
| 4 Dec 2025, 11:13 | 625 | 625 µS/cm |
| 19 Nov 2025, 12:57 | 645 | 645 µS/cm |
| 10 Oct 2025, 10:51 | 625 | 625 µS/cm |
| 26 Sep 2025, 13:50 | 621 | 621 µS/cm |
| 28 Aug 2025, 12:43 | 590 | 590 µS/cm |
| 18 Aug 2025, 14:47 | 589 | 589 µS/cm |
| 25 Jul 2025, 13:09 | 601 | 601 µS/cm |
| 18 Jun 2025, 12:00 | 587 | 587 µS/cm |
| 9 Apr 2025, 09:45 | 588 | 588 µS/cm |
| 24 Mar 2025, 11:03 | 656 | 656 µS/cm |
| 3 Feb 2025, 11:06 | 585 | 585 µS/cm |
| 6 Jan 2025, 09:15 | 504 | 504 µS/cm |
| 3 Dec 2024, 11:21 | 594 | 594 µS/cm |
| 14 Nov 2024, 09:45 | 596 | 596 µS/cm |
| 10 Oct 2024, 10:12 | 497 | 497 µS/cm |
| 5 Sep 2024, 11:05 | 605 | 605 µS/cm |
| 13 Aug 2024, 11:11 | 656 | 656 µS/cm |
| 2 Jul 2024, 11:49 | 596 | 596 µS/cm |
| 26 Mar 2024, 10:37 | 590 | 590 µS/cm |
| 1 Feb 2024, 10:38 | 598 | 598 µS/cm |
| 12 Jan 2024, 11:10 | 542 | 542 µS/cm |
| 7 Dec 2023, 11:13 | 588 | 588 µS/cm |
| 10 Nov 2023, 14:03 | 596 | 596 µS/cm |
| 19 Oct 2023, 10:48 | 606 | 606 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 | 91.9% 12 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Oct 2023 – Aug 2026 | 8.84 mg/l 12 Aug 2026 |
| Temperature of Water 0076 | River water | 32 | Oct 2023 – Aug 2026 | 17.1 °C 12 Aug 2026 |
| pH 0061 | River water | 32 | Oct 2023 – Aug 2026 | 7.96 12 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Oct 2023 – Aug 2026 | 0.032 mg/l 12 Aug 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Aug 2026 | 6.26 mg/l 12 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Aug 2026 | 0.061 mg/l 12 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 32 | Oct 2023 – Aug 2026 | 594 µS/cm 12 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Aug 2026 | 230 mg/l 12 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Oct 2023 – Aug 2026 | 0.0009 mg/l 12 Aug 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Aug 2026 | 0.039 mg/l 12 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Aug 2026 | 6.3 mg/l 12 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 15 | Oct 2023 – Mar 2025 | 7.7 mg/l 24 Mar 2025 |
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.