River Piddle at Piddlehinton
EA name: RIVER PIDDLE AT PIDDLEHINTON
Environment Agency sampling point SW-50410164 · 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
- 4 Sep 2026, 10:1327 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 since 4 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 371500, 97200As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Piddle
- River, by the map
- River PiddlePlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Little Puddle On the River Piddle · 0.9 km along the river
- Nearest gauge upstream
- South House On the River Piddle · 2.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
94%
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 94 | 94% |
| 13 Aug 2026, 09:44 | 97.6 | 97.6% |
| 10 Jul 2026, 09:18 | 98.7 | 98.7% |
| 26 Jun 2026, 09:23 | 96.6 | 96.6% |
| 11 May 2026, 09:01 | 103.2 | 103.2% |
| 16 Apr 2026, 08:48 | 102.3 | 102.3% |
| 24 Mar 2026, 12:32 | 101.9 | 101.9% |
| 9 Dec 2025, 10:05 | 94.8 | 94.8% |
| 21 Nov 2025, 10:58 | 98.5 | 98.5% |
| 14 Oct 2025, 09:22 | 97.5 | 97.5% |
| 3 Sep 2025, 10:13 | 98 | 98% |
| 12 Aug 2025, 12:28 | 111.1 | 111.1% |
| 25 Jul 2025, 09:11 | 96.9 | 96.9% |
| 24 Jun 2025, 08:47 | 93.7 | 93.7% |
| 23 May 2025, 11:43 | 104.3 | 104.3% |
| 2 Apr 2025, 13:16 | 109.5 | 109.5% |
| 13 Mar 2025, 12:34 | 110.5 | 110.5% |
| 17 Feb 2025, 12:17 | 105.2 | 105.2% |
| 13 Feb 2025, 14:13 | 94.3 | 94.3% |
| 19 Nov 2024, 10:02 | 96.8 | 96.8% |
| 18 Oct 2024, 10:53 | 99.3 | 99.3% |
| 20 Sep 2024, 09:40 | 95.2 | 95.2% |
| 30 Aug 2024, 09:43 | 97.4 | 97.4% |
| 17 Jul 2024, 10:39 | 99.8 | 99.8% |
| 28 Jun 2024, 09:42 | 101.5 | 101.5% |
| 4 Mar 2024, 15:01 | 97.9 | 97.9% |
| 5 Feb 2024, 12:16 | 102.1 | 102.1% |
| 9 Jan 2024, 10:30 | 97.3 | 97.3% |
| 5 Dec 2023, 09:07 | 87.5 | 87.5% |
| 7 Nov 2023, 09:11 | 100.1 | 100.1% |
| 4 Oct 2023, 08:42 | 88.3 | 88.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.84 mg/l
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 8.84 | 8.84 mg/l |
| 13 Aug 2026, 09:44 | 9.16 | 9.16 mg/l |
| 10 Jul 2026, 09:18 | 9.19 | 9.19 mg/l |
| 26 Jun 2026, 09:23 | 8.61 | 8.61 mg/l |
| 11 May 2026, 09:01 | 12 | 12 mg/l |
| 16 Apr 2026, 08:48 | 11.3 | 11.3 mg/l |
| 24 Mar 2026, 12:32 | 11.3 | 11.3 mg/l |
| 9 Dec 2025, 10:05 | 10.4 | 10.4 mg/l |
| 21 Nov 2025, 10:58 | 13.2 | 13.2 mg/l |
| 14 Oct 2025, 09:22 | 10.4 | 10.4 mg/l |
| 3 Sep 2025, 10:13 | 9.59 | 9.59 mg/l |
| 12 Aug 2025, 12:28 | 10.1 | 10.1 mg/l |
| 25 Jul 2025, 09:11 | 9.36 | 9.36 mg/l |
| 24 Jun 2025, 08:47 | 9.44 | 9.44 mg/l |
| 23 May 2025, 11:43 | 10.6 | 10.6 mg/l |
| 2 Apr 2025, 13:16 | 12.5 | 12.5 mg/l |
| 13 Mar 2025, 12:34 | 12.6 | 12.6 mg/l |
| 17 Feb 2025, 12:17 | 12.4 | 12.4 mg/l |
| 13 Feb 2025, 14:13 | 11.1 | 11.1 mg/l |
| 19 Nov 2024, 10:02 | 10.9 | 10.9 mg/l |
| 18 Oct 2024, 10:53 | 11 | 11 mg/l |
| 20 Sep 2024, 09:40 | 9.74 | 9.74 mg/l |
| 30 Aug 2024, 09:43 | 10.2 | 10.2 mg/l |
| 17 Jul 2024, 10:39 | 10.3 | 10.3 mg/l |
| 28 Jun 2024, 09:42 | 10.5 | 10.5 mg/l |
| 4 Mar 2024, 15:01 | 11.1 | 11.1 mg/l |
| 5 Feb 2024, 12:16 | 11.4 | 11.4 mg/l |
| 9 Jan 2024, 10:30 | 11.9 | 11.9 mg/l |
| 5 Dec 2023, 09:07 | 10.2 | 10.2 mg/l |
| 7 Nov 2023, 09:11 | 11.7 | 11.7 mg/l |
| 4 Oct 2023, 08:42 | 9.41 | 9.41 mg/l |
Water temperature
code 0076 · °C
18.2 °C
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 18.2 | 18.2 °C |
| 13 Aug 2026, 09:44 | 18.3 | 18.3 °C |
| 10 Jul 2026, 09:18 | 18.7 | 18.7 °C |
| 26 Jun 2026, 09:23 | 20.9 | 20.9 °C |
| 11 May 2026, 09:01 | 8.8 | 8.8 °C |
| 16 Apr 2026, 08:48 | 10.8 | 10.8 °C |
| 24 Mar 2026, 12:32 | 10.5 | 10.5 °C |
| 9 Dec 2025, 10:05 | 11.2 | 11.2 °C |
| 21 Nov 2025, 10:58 | 3.1 | 3.1 °C |
| 14 Oct 2025, 09:22 | 12.4 | 12.4 °C |
| 3 Sep 2025, 10:13 | 16.3 | 16.3 °C |
| 12 Aug 2025, 12:28 | 20 | 20 °C |
| 25 Jul 2025, 09:11 | 16.9 | 16.9 °C |
| 24 Jun 2025, 08:47 | 14.9 | 14.9 °C |
| 23 May 2025, 11:43 | 14.4 | 14.4 °C |
| 2 Apr 2025, 13:16 | 9.5 | 9.5 °C |
| 13 Mar 2025, 12:34 | 9.6 | 9.6 °C |
| 17 Feb 2025, 12:17 | 8.1 | 8.1 °C |
| 13 Feb 2025, 14:13 | 8.1 | 8.1 °C |
| 19 Nov 2024, 10:02 | 10.1 | 10.1 °C |
| 18 Oct 2024, 10:53 | 10.7 | 10.7 °C |
| 20 Sep 2024, 09:40 | 14.2 | 14.2 °C |
| 30 Aug 2024, 09:43 | 13.3 | 13.3 °C |
| 17 Jul 2024, 10:39 | 14 | 14 °C |
| 28 Jun 2024, 09:42 | 13.7 | 13.7 °C |
| 4 Mar 2024, 15:01 | 9.6 | 9.6 °C |
| 5 Feb 2024, 12:16 | 10.3 | 10.3 °C |
| 9 Jan 2024, 10:30 | 6.6 | 6.6 °C |
| 5 Dec 2023, 09:07 | 8.4 | 8.4 °C |
| 7 Nov 2023, 09:11 | 8.6 | 8.6 °C |
| 4 Oct 2023, 08:42 | 12.4 | 12.4 °C |
pH
code 0061
8.1
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 8.1 | 8.1 |
| 13 Aug 2026, 09:44 | 8.14 | 8.14 |
| 10 Jul 2026, 09:18 | 8.27 | 8.27 |
| 26 Jun 2026, 09:23 | 8.5 | 8.5 |
| 11 May 2026, 09:01 | 8.22 | 8.22 |
| 16 Apr 2026, 08:48 | 8.26 | 8.26 |
| 24 Mar 2026, 12:32 | 8.24 | 8.24 |
| 9 Dec 2025, 10:05 | 8.23 | 8.23 |
| 21 Nov 2025, 10:58 | 8.42 | 8.42 |
| 14 Oct 2025, 09:22 | 8.05 | 8.05 |
| 3 Sep 2025, 10:13 | 8.12 | 8.12 |
| 12 Aug 2025, 12:28 | 8.37 | 8.37 |
| 25 Jul 2025, 09:11 | 8.2 | 8.2 |
| 24 Jun 2025, 08:47 | 8.09 | 8.09 |
| 23 May 2025, 11:43 | 8.25 | 8.25 |
| 2 Apr 2025, 13:16 | 8.46 | 8.46 |
| 13 Mar 2025, 12:34 | 8.4 | 8.4 |
| 17 Feb 2025, 12:17 | 8.3 | 8.3 |
| 13 Feb 2025, 14:13 | 8.08 | 8.08 |
| 19 Nov 2024, 10:02 | 8.41 | 8.41 |
| 18 Oct 2024, 10:53 | 8.34 | 8.34 |
| 20 Sep 2024, 09:40 | 8.23 | 8.23 |
| 30 Aug 2024, 09:43 | 8.16 | 8.16 |
| 17 Jul 2024, 10:39 | 8.29 | 8.29 |
| 28 Jun 2024, 09:42 | 8.46 | 8.46 |
| 4 Mar 2024, 15:01 | 8.08 | 8.08 |
| 5 Feb 2024, 12:16 | 8.41 | 8.41 |
| 9 Jan 2024, 10:30 | 7.95 | 7.95 |
| 5 Dec 2023, 09:07 | 7.87 | 7.87 |
| 7 Nov 2023, 09:11 | 8.33 | 8.33 |
| 4 Oct 2023, 08:42 | 8.01 | 8.01 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Aug 2026, 09:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2026, 09:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2026, 09:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 May 2026, 09:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2026, 08:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2026, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2025, 10:05 | 0.035 | 0.035 mg/l |
| 21 Nov 2025, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Oct 2025, 09:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2025, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2025, 12:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2025, 09:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2025, 08:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 May 2025, 11:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 13:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2025, 12:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Feb 2025, 12:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2025, 14:13 | 0.045 | 0.045 mg/l |
| 19 Nov 2024, 10:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Sep 2024, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Aug 2024, 09:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 10:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jun 2024, 09:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2024, 15:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2024, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jan 2024, 10:30 | 0.09 | 0.09 mg/l |
| 5 Dec 2023, 09:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2023, 09:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Oct 2023, 08:42 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.2 mg/l
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 3.2 | 3.2 mg/l |
| 13 Aug 2026, 09:44 | 3.3 | 3.3 mg/l |
| 10 Jul 2026, 09:18 | 5.79 | 5.79 mg/l |
| 26 Jun 2026, 09:23 | 6.07 | 6.07 mg/l |
| 11 May 2026, 09:01 | 6.49 | 6.49 mg/l |
| 16 Apr 2026, 08:48 | 6.5 | 6.5 mg/l |
| 24 Mar 2026, 12:32 | 6.69 | 6.69 mg/l |
| 9 Dec 2025, 10:05 | 3.79 | 3.79 mg/l |
| 21 Nov 2025, 10:58 | 5.2 | 5.2 mg/l |
| 14 Oct 2025, 09:22 | 3.4 | 3.4 mg/l |
| 3 Sep 2025, 10:13 | 1.5 | 1.5 mg/l |
| 12 Aug 2025, 12:28 | 2.99 | 2.99 mg/l |
| 25 Jul 2025, 09:11 | 5.39 | 5.39 mg/l |
| 24 Jun 2025, 08:47 | 6.19 | 6.19 mg/l |
| 23 May 2025, 11:43 | 6.28 | 6.28 mg/l |
| 2 Apr 2025, 13:16 | 6.8 | 6.8 mg/l |
| 13 Mar 2025, 12:34 | 6.69 | 6.69 mg/l |
| 17 Feb 2025, 12:17 | 7 | 7 mg/l |
| 13 Feb 2025, 14:13 | 7.09 | 7.09 mg/l |
| 19 Nov 2024, 10:02 | 6.39 | 6.39 mg/l |
| 18 Oct 2024, 10:53 | 6.2 | 6.2 mg/l |
| 20 Sep 2024, 09:40 | 5.79 | 5.79 mg/l |
| 30 Aug 2024, 09:43 | 5.99 | 5.99 mg/l |
| 17 Jul 2024, 10:39 | 6.68 | 6.68 mg/l |
| 28 Jun 2024, 09:42 | 6.69 | 6.69 mg/l |
| 4 Mar 2024, 15:01 | 6.69 | 6.69 mg/l |
| 5 Feb 2024, 12:16 | 6.9 | 6.9 mg/l |
| 9 Jan 2024, 10:30 | 6.99 | 6.99 mg/l |
| 5 Dec 2023, 09:07 | 6.39 | 6.39 mg/l |
| 7 Nov 2023, 09:11 | 6.1 | 6.1 mg/l |
| 4 Oct 2023, 08:42 | 5.49 | 5.49 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.023 mg/l
Sampled 4 Sep 2026, 27 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 0.023 | 0.023 mg/l |
| 13 Aug 2026, 09:44 | 0.018 | 0.018 mg/l |
| 10 Jul 2026, 09:18 | 0.033 | 0.033 mg/l |
| 26 Jun 2026, 09:23 | 0.045 | 0.045 mg/l |
| 11 May 2026, 09:01 | 0.024 | 0.024 mg/l |
| 16 Apr 2026, 08:48 | 0.039 | 0.039 mg/l |
| 24 Mar 2026, 12:32 | 0.065 | 0.065 mg/l |
| 9 Dec 2025, 10:05 | 0.19 | 0.19 mg/l |
| 21 Nov 2025, 10:58 | 0.026 | 0.026 mg/l |
| 14 Oct 2025, 09:22 | 0.017 | 0.017 mg/l |
| 3 Sep 2025, 10:13 | 0.05 | 0.05 mg/l |
| 12 Aug 2025, 12:28 | 0.01 | 0.01 mg/l |
| 25 Jul 2025, 09:11 | 0.018 | 0.018 mg/l |
| 24 Jun 2025, 08:47 | 0.016 | 0.016 mg/l |
| 23 May 2025, 11:43 | 0.027 | 0.027 mg/l |
| 2 Apr 2025, 13:16 | 0.019 | 0.019 mg/l |
| 13 Mar 2025, 12:34 | 0.061 | 0.061 mg/l |
| 17 Feb 2025, 12:17 | 0.055 | 0.055 mg/l |
| 13 Feb 2025, 14:13 | 0.086 | 0.086 mg/l |
| 19 Nov 2024, 10:02 | 0.064 | 0.064 mg/l |
| 18 Oct 2024, 10:53 | 0.044 | 0.044 mg/l |
| 20 Sep 2024, 09:40 | 0.027 | 0.027 mg/l |
| 30 Aug 2024, 09:43 | 0.028 | 0.028 mg/l |
| 17 Jul 2024, 10:39 | 0.029 | 0.029 mg/l |
| 28 Jun 2024, 09:42 | 0.037 | 0.037 mg/l |
| 4 Mar 2024, 15:01 | 0.12 | 0.12 mg/l |
| 9 Jan 2024, 10:30 | 0.17 | 0.17 mg/l |
| 5 Dec 2023, 09:07 | 0.12 | 0.12 mg/l |
| 7 Nov 2023, 09:11 | 0.067 | 0.067 mg/l |
| 4 Oct 2023, 08:42 | 0.025 | 0.025 mg/l |
Turbidity
code 6396 · NTU
2.7 NTU
Sampled 24 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Mar 2026, 12:32 | 2.7 | 2.7 NTU |
| 9 Dec 2025, 10:05 | 35 | 35 NTU |
| 21 Nov 2025, 10:58 | 2 | 2 NTU |
| 14 Oct 2025, 09:22 | <1 | below 1 NTU (not detected above this) |
| 12 Aug 2025, 12:28 | 1.1 | 1.1 NTU |
| 2 Apr 2025, 13:16 | 1 | 1 NTU |
| 4 Mar 2024, 15:01 | 2.4 | 2.4 NTU |
| 5 Feb 2024, 12:16 | 2.4 | 2.4 NTU |
| 9 Jan 2024, 10:30 | 1.5 | 1.5 NTU |
| 5 Dec 2023, 09:07 | 2.1 | 2.1 NTU |
| 7 Nov 2023, 09:11 | 6 | 6 NTU |
| 4 Oct 2023, 08:42 | 3 | 3 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
501 µS/cm
Sampled 4 Sep 2026, 27 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Sep 2026, 10:13 | 501 | 501 µS/cm |
| 13 Aug 2026, 09:44 | 498 | 498 µS/cm |
| 10 Jul 2026, 09:18 | 536 | 536 µS/cm |
| 26 Jun 2026, 09:23 | 843 | 843 µS/cm |
| 11 May 2026, 09:01 | 549 | 549 µS/cm |
| 16 Apr 2026, 08:48 | 558 | 558 µS/cm |
| 24 Mar 2026, 12:32 | 577 | 577 µS/cm |
| 9 Dec 2025, 10:05 | 436 | 436 µS/cm |
| 21 Nov 2025, 10:58 | 553 | 553 µS/cm |
| 14 Oct 2025, 09:22 | 503 | 503 µS/cm |
| 3 Sep 2025, 10:13 | 304 | 304 µS/cm |
| 12 Aug 2025, 12:28 | 540 | 540 µS/cm |
| 25 Jul 2025, 09:11 | 498 | 498 µS/cm |
| 24 Jun 2025, 08:47 | 538 | 538 µS/cm |
| 23 May 2025, 11:43 | 539 | 539 µS/cm |
| 2 Apr 2025, 13:16 | 546 | 546 µS/cm |
| 13 Mar 2025, 12:34 | 567 | 567 µS/cm |
| 17 Feb 2025, 12:17 | 570 | 570 µS/cm |
| 13 Feb 2025, 14:13 | 534 | 534 µS/cm |
| 19 Nov 2024, 10:02 | 569 | 569 µS/cm |
| 18 Oct 2024, 10:53 | 587 | 587 µS/cm |
| 20 Sep 2024, 09:40 | 612 | 612 µS/cm |
| 30 Aug 2024, 09:43 | 549 | 549 µS/cm |
| 17 Jul 2024, 10:39 | 580 | 580 µS/cm |
| 28 Jun 2024, 09:42 | 590 | 590 µS/cm |
| 4 Mar 2024, 15:01 | 579 | 579 µS/cm |
| 5 Feb 2024, 12:16 | 574 | 574 µS/cm |
| 9 Jan 2024, 10:30 | 589 | 589 µS/cm |
| 5 Dec 2023, 09:07 | 573 | 573 µS/cm |
| 7 Nov 2023, 09:11 | 577 | 577 µS/cm |
| 4 Oct 2023, 08:42 | 525 | 525 µS/cm |
Everything measured here
16 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 16 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – Sep 2026 | 94% 4 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – Sep 2026 | 8.84 mg/l 4 Sep 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – Sep 2026 | 18.2 °C 4 Sep 2026 |
| pH 0061 | River water | 31 | Oct 2023 – Sep 2026 | 8.1 4 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | below 0.03 mg/l 4 Sep 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Sep 2026 | 3.2 mg/l 4 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Sep 2026 | 0.023 mg/l 4 Sep 2026 |
| Turbidity 6396 | River water | 12 | Oct 2023 – Mar 2026 | 2.7 NTU 24 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Sep 2026 | 501 µS/cm 4 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Sep 2026 | 220 mg/l 4 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Sep 2026 | below 0.00099 mg/l 4 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.2 mg/l 11 May 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 12 | Oct 2023 – Mar 2026 | 3 µg/l 24 Mar 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Sep 2026 | 0.0041 mg/l 4 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – Sep 2026 | 3.2 mg/l 4 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 13 | Oct 2023 – Mar 2026 | 10 mg/l 24 Mar 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.