River Welland Tidal Sluice
EA name: R.WELLAND TIDAL SLUICE
Environment Agency sampling point AN-WELL570T · 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
- 21 May 2026, 09:564 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 33 since 31 Oct 2024 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 525800, 324100As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Welland
- River, by the map
- River WellandPlaced on the river its name gives, 42 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Deeping St James On the River Welland · 25 km along the riverTallington On the River Welland · 31 km along the river
- Why it was sampled
- Monitoring (national agency policy) (33 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
108.9%
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 108.9 | 108.9% |
| 11 May 2026, 15:40 | 115.9 | 115.9% |
| 24 Apr 2026, 12:06 | 115.4 | 115.4% |
| 9 Apr 2026, 10:33 | 148.8 | 148.8% |
| 27 Mar 2026, 11:59 | 105 | 105% |
| 13 Mar 2026, 13:39 | 98.2 | 98.2% |
| 24 Feb 2026, 10:47 | 91.9 | 91.9% |
| 13 Feb 2026, 13:05 | 89.1 | 89.1% |
| 28 Jan 2026, 13:12 | 87.4 | 87.4% |
| 13 Jan 2026, 13:36 | 95.1 | 95.1% |
| 16 Dec 2025, 12:09 | 87.6 | 87.6% |
| 10 Dec 2025, 10:05 | 90.6 | 90.6% |
| 27 Nov 2025, 10:37 | 86.1 | 86.1% |
| 12 Nov 2025, 13:24 | 84.8 | 84.8% |
| 17 Oct 2025, 12:44 | 84.7 | 84.7% |
| 26 Sep 2025, 12:36 | 67.4 | 67.4% |
| 11 Sep 2025, 12:18 | 51 | 51% |
| 29 Aug 2025, 11:53 | 107.2 | 107.2% |
| 22 Aug 2025, 09:19 | 63 | 63% |
| 14 Aug 2025, 10:02 | 65.4 | 65.4% |
| 25 Jul 2025, 09:08 | 76 | 76% |
| 8 Jul 2025, 13:05 | 100.1 | 100.1% |
| 25 Jun 2025, 11:43 | 111.5 | 111.5% |
| 13 Jun 2025, 08:55 | 95.2 | 95.2% |
| 22 May 2025, 09:33 | 116.2 | 116.2% |
| 21 May 2025, 11:06 | 119.7 | 119.7% |
| 16 Apr 2025, 14:15 | 115.6 | 115.6% |
| 24 Mar 2025, 12:06 | 147.6 | 147.6% |
| 20 Feb 2025, 08:35 | 96.7 | 96.7% |
| 23 Jan 2025, 11:08 | 91.9 | 91.9% |
| 12 Dec 2024, 12:25 | 93.3 | 93.3% |
| 21 Nov 2024, 09:39 | 91.9 | 91.9% |
| 31 Oct 2024, 12:25 | 77.8 | 77.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.9 mg/l
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 10.9 | 10.9 mg/l |
| 11 May 2026, 15:40 | 12 | 12 mg/l |
| 24 Apr 2026, 12:06 | 11.9 | 11.9 mg/l |
| 9 Apr 2026, 10:33 | 15.6 | 15.6 mg/l |
| 27 Mar 2026, 11:59 | 12 | 12 mg/l |
| 13 Mar 2026, 13:39 | 11.3 | 11.3 mg/l |
| 24 Feb 2026, 10:47 | 10.5 | 10.5 mg/l |
| 13 Feb 2026, 13:05 | 10.9 | 10.9 mg/l |
| 28 Jan 2026, 13:12 | 10.9 | 10.9 mg/l |
| 13 Jan 2026, 13:36 | 11.9 | 11.9 mg/l |
| 16 Dec 2025, 12:09 | 10.4 | 10.4 mg/l |
| 10 Dec 2025, 10:05 | 10.5 | 10.5 mg/l |
| 27 Nov 2025, 10:37 | 10.7 | 10.7 mg/l |
| 12 Nov 2025, 13:24 | 9.1 | 9.1 mg/l |
| 17 Oct 2025, 12:44 | 8.96 | 8.96 mg/l |
| 26 Sep 2025, 12:36 | 6.88 | 6.88 mg/l |
| 11 Sep 2025, 12:18 | 5.05 | 5.05 mg/l |
| 29 Aug 2025, 11:53 | 10.2 | 10.2 mg/l |
| 22 Aug 2025, 09:19 | 5.99 | 5.99 mg/l |
| 14 Aug 2025, 10:02 | 5.73 | 5.73 mg/l |
| 25 Jul 2025, 09:08 | 6.98 | 6.98 mg/l |
| 8 Jul 2025, 13:05 | 9.04 | 9.04 mg/l |
| 25 Jun 2025, 11:43 | 9.76 | 9.76 mg/l |
| 13 Jun 2025, 08:55 | 8.79 | 8.79 mg/l |
| 22 May 2025, 09:33 | 11.4 | 11.4 mg/l |
| 21 May 2025, 11:06 | 11.6 | 11.6 mg/l |
| 16 Apr 2025, 14:15 | 12.2 | 12.2 mg/l |
| 24 Mar 2025, 12:06 | 16.8 | 16.8 mg/l |
| 20 Feb 2025, 08:35 | 12.3 | 12.3 mg/l |
| 23 Jan 2025, 11:08 | 11.8 | 11.8 mg/l |
| 12 Dec 2024, 12:25 | 11.4 | 11.4 mg/l |
| 21 Nov 2024, 09:39 | 12.2 | 12.2 mg/l |
| 31 Oct 2024, 12:25 | 8.37 | 8.37 mg/l |
Water temperature
code 0076 · °C
15.1 °C
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 15.1 | 15.1 °C |
| 11 May 2026, 15:40 | 13.8 | 13.8 °C |
| 24 Apr 2026, 12:06 | 13.9 | 13.9 °C |
| 9 Apr 2026, 10:33 | 13 | 13 °C |
| 27 Mar 2026, 11:59 | 9.5 | 9.5 °C |
| 13 Mar 2026, 13:39 | 9.3 | 9.3 °C |
| 24 Feb 2026, 10:47 | 9.5 | 9.5 °C |
| 13 Feb 2026, 13:05 | 6.8 | 6.8 °C |
| 28 Jan 2026, 13:12 | 5.8 | 5.8 °C |
| 13 Jan 2026, 13:36 | 5.7 | 5.7 °C |
| 16 Dec 2025, 12:09 | 8 | 8 °C |
| 10 Dec 2025, 10:05 | 8.9 | 8.9 °C |
| 27 Nov 2025, 10:37 | 6.1 | 6.1 °C |
| 12 Nov 2025, 13:24 | 12.1 | 12.1 °C |
| 17 Oct 2025, 12:44 | 12.7 | 12.7 °C |
| 26 Sep 2025, 12:36 | 14.3 | 14.3 °C |
| 11 Sep 2025, 12:18 | 15.7 | 15.7 °C |
| 29 Aug 2025, 11:53 | 17.5 | 17.5 °C |
| 22 Aug 2025, 09:19 | 17.7 | 17.7 °C |
| 14 Aug 2025, 10:02 | 21.8 | 21.8 °C |
| 25 Jul 2025, 09:08 | 19.4 | 19.4 °C |
| 8 Jul 2025, 13:05 | 20.2 | 20.2 °C |
| 25 Jun 2025, 11:43 | 21.8 | 21.8 °C |
| 13 Jun 2025, 08:55 | 19.1 | 19.1 °C |
| 22 May 2025, 09:33 | 16.1 | 16.1 °C |
| 21 May 2025, 11:06 | 16.7 | 16.7 °C |
| 16 Apr 2025, 14:15 | 13 | 13 °C |
| 24 Mar 2025, 12:06 | 9.6 | 9.6 °C |
| 20 Feb 2025, 08:35 | 5.1 | 5.1 °C |
| 23 Jan 2025, 11:08 | 4.8 | 4.8 °C |
| 12 Dec 2024, 12:25 | 6.6 | 6.6 °C |
| 21 Nov 2024, 09:39 | 3.4 | 3.4 °C |
| 31 Oct 2024, 12:25 | 12 | 12 °C |
pH
code 0061
8.25
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 8.25 | 8.25 |
| 11 May 2026, 15:40 | 8.34 | 8.34 |
| 24 Apr 2026, 12:06 | 8.3 | 8.3 |
| 9 Apr 2026, 10:33 | 8.55 | 8.55 |
| 27 Mar 2026, 11:59 | 8.46 | 8.46 |
| 13 Mar 2026, 13:39 | 8.3 | 8.3 |
| 24 Feb 2026, 10:47 | 8.11 | 8.11 |
| 13 Feb 2026, 13:05 | 7.95 | 7.95 |
| 28 Jan 2026, 13:12 | 7.97 | 7.97 |
| 13 Jan 2026, 13:36 | 7.96 | 7.96 |
| 16 Dec 2025, 12:09 | 8 | 8 |
| 10 Dec 2025, 10:05 | 7.93 | 7.93 |
| 27 Nov 2025, 10:37 | 7.85 | 7.85 |
| 12 Nov 2025, 13:24 | 7.95 | 7.95 |
| 17 Oct 2025, 12:44 | 7.97 | 7.97 |
| 26 Sep 2025, 12:36 | 7.74 | 7.74 |
| 11 Sep 2025, 12:18 | 7.64 | 7.64 |
| 29 Aug 2025, 11:53 | 8.13 | 8.13 |
| 22 Aug 2025, 09:19 | 7.65 | 7.65 |
| 14 Aug 2025, 10:02 | 7.99 | 7.99 |
| 25 Jul 2025, 09:08 | 7.72 | 7.72 |
| 8 Jul 2025, 13:05 | 7.91 | 7.91 |
| 25 Jun 2025, 11:43 | 8.03 | 8.03 |
| 13 Jun 2025, 08:55 | 7.94 | 7.94 |
| 22 May 2025, 09:33 | 8.11 | 8.11 |
| 21 May 2025, 11:06 | 8.12 | 8.12 |
| 16 Apr 2025, 14:15 | 8.58 | 8.58 |
| 24 Mar 2025, 12:06 | 8.48 | 8.48 |
| 20 Feb 2025, 08:35 | 8.16 | 8.16 |
| 23 Jan 2025, 11:08 | 8.01 | 8.01 |
| 12 Dec 2024, 12:25 | 8.12 | 8.12 |
| 21 Nov 2024, 09:39 | 8.12 | 8.12 |
| 31 Oct 2024, 12:25 | 7.86 | 7.86 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.059 mg/l
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 0.059 | 0.059 mg/l |
| 11 May 2026, 15:40 | 0.073 | 0.073 mg/l |
| 24 Apr 2026, 12:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2026, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2026, 11:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Mar 2026, 13:39 | 0.054 | 0.054 mg/l |
| 24 Feb 2026, 10:47 | 0.14 | 0.14 mg/l |
| 13 Feb 2026, 13:05 | 0.06 | 0.06 mg/l |
| 28 Jan 2026, 13:12 | 0.19 | 0.19 mg/l |
| 13 Jan 2026, 13:36 | 0.082 | 0.082 mg/l |
| 16 Dec 2025, 12:09 | 0.077 | 0.077 mg/l |
| 10 Dec 2025, 10:05 | 0.075 | 0.075 mg/l |
| 27 Nov 2025, 10:37 | 0.096 | 0.096 mg/l |
| 12 Nov 2025, 13:24 | 0.73 | 0.73 mg/l |
| 17 Oct 2025, 12:44 | 0.043 | 0.043 mg/l |
| 26 Sep 2025, 12:36 | 0.45 | 0.45 mg/l |
| 11 Sep 2025, 12:18 | 3.4 | 3.4 mg/l |
| 29 Aug 2025, 11:53 | 3.2 | 3.2 mg/l |
| 22 Aug 2025, 09:19 | 2.1 | 2.1 mg/l |
| 14 Aug 2025, 10:02 | 3 | 3 mg/l |
| 25 Jul 2025, 09:08 | 2.2 | 2.2 mg/l |
| 8 Jul 2025, 13:05 | 0.081 | 0.081 mg/l |
| 25 Jun 2025, 11:43 | 0.11 | 0.11 mg/l |
| 13 Jun 2025, 08:55 | 2.2 | 2.2 mg/l |
| 22 May 2025, 09:33 | 0.062 | 0.062 mg/l |
| 21 May 2025, 11:06 | 0.055 | 0.055 mg/l |
| 16 Apr 2025, 14:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2025, 12:06 | 0.045 | 0.045 mg/l |
| 20 Feb 2025, 08:35 | 0.076 | 0.076 mg/l |
| 23 Jan 2025, 11:08 | 0.16 | 0.16 mg/l |
| 12 Dec 2024, 12:25 | 0.042 | 0.042 mg/l |
| 21 Nov 2024, 09:39 | 0.057 | 0.057 mg/l |
| 31 Oct 2024, 12:25 | 0.039 | 0.039 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.75 mg/l
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 4.75 | 4.75 mg/l |
| 11 May 2026, 15:40 | 5.34 | 5.34 mg/l |
| 24 Apr 2026, 12:06 | 7.25 | 7.25 mg/l |
| 9 Apr 2026, 10:33 | 8.56 | 8.56 mg/l |
| 27 Mar 2026, 11:59 | 9.36 | 9.36 mg/l |
| 13 Mar 2026, 13:39 | 8.76 | 8.76 mg/l |
| 24 Feb 2026, 10:47 | 9.26 | 9.26 mg/l |
| 13 Feb 2026, 13:05 | 8.07 | 8.07 mg/l |
| 28 Jan 2026, 13:12 | 10.9 | 10.9 mg/l |
| 13 Jan 2026, 13:36 | 9.06 | 9.06 mg/l |
| 16 Dec 2025, 12:09 | 9.53 | 9.53 mg/l |
| 10 Dec 2025, 10:05 | 9.94 | 9.94 mg/l |
| 27 Nov 2025, 10:37 | 10.9 | 10.9 mg/l |
| 12 Nov 2025, 13:24 | 4.18 | 4.18 mg/l |
| 17 Oct 2025, 12:44 | 1.56 | 1.56 mg/l |
| 26 Sep 2025, 12:36 | 0.677 | 0.677 mg/l |
| 11 Sep 2025, 12:18 | 0.84 | 0.84 mg/l |
| 29 Aug 2025, 11:53 | 1.01 | 1.01 mg/l |
| 22 Aug 2025, 09:19 | 0.56 | 0.56 mg/l |
| 14 Aug 2025, 10:02 | 0.76 | 0.76 mg/l |
| 25 Jul 2025, 09:08 | 0.72 | 0.72 mg/l |
| 8 Jul 2025, 13:05 | 0.601 | 0.601 mg/l |
| 25 Jun 2025, 11:43 | 1.45 | 1.45 mg/l |
| 13 Jun 2025, 08:55 | 2.52 | 2.52 mg/l |
| 22 May 2025, 09:33 | 3.55 | 3.55 mg/l |
| 21 May 2025, 11:06 | 3.65 | 3.65 mg/l |
| 16 Apr 2025, 14:15 | 6.34 | 6.34 mg/l |
| 24 Mar 2025, 12:06 | 7.87 | 7.87 mg/l |
| 20 Feb 2025, 08:35 | 7.46 | 7.46 mg/l |
| 23 Jan 2025, 11:08 | 8.55 | 8.55 mg/l |
| 12 Dec 2024, 12:25 | 6.17 | 6.17 mg/l |
| 21 Nov 2024, 09:39 | 6.44 | 6.44 mg/l |
| 31 Oct 2024, 12:25 | 5.05 | 5.05 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 May 2026, 15:40 | <0.01 | below 0.01 mg/l (not detected above this) |
| 24 Apr 2026, 12:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 9 Apr 2026, 10:33 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Mar 2026, 11:59 | 0.035 | 0.035 mg/l |
| 13 Mar 2026, 13:39 | 0.073 | 0.073 mg/l |
| 24 Feb 2026, 10:47 | 0.066 | 0.066 mg/l |
| 13 Feb 2026, 13:05 | 0.078 | 0.078 mg/l |
| 28 Jan 2026, 13:12 | 0.073 | 0.073 mg/l |
| 13 Jan 2026, 13:36 | 0.11 | 0.11 mg/l |
| 16 Dec 2025, 12:09 | 0.097 | 0.097 mg/l |
| 10 Dec 2025, 10:05 | 0.11 | 0.11 mg/l |
| 27 Nov 2025, 10:37 | 0.12 | 0.12 mg/l |
| 12 Nov 2025, 13:24 | 0.12 | 0.12 mg/l |
| 17 Oct 2025, 12:44 | 0.066 | 0.066 mg/l |
| 26 Sep 2025, 12:36 | 0.035 | 0.035 mg/l |
| 11 Sep 2025, 12:18 | 0.056 | 0.056 mg/l |
| 29 Aug 2025, 11:53 | 0.25 | 0.25 mg/l |
| 22 Aug 2025, 09:19 | 0.099 | 0.099 mg/l |
| 14 Aug 2025, 10:02 | 0.059 | 0.059 mg/l |
| 25 Jul 2025, 09:08 | 0.06 | 0.06 mg/l |
| 8 Jul 2025, 13:05 | 0.012 | 0.012 mg/l |
| 25 Jun 2025, 11:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Jun 2025, 08:55 | 0.13 | 0.13 mg/l |
| 22 May 2025, 09:33 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 May 2025, 11:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Apr 2025, 14:15 | <0.01 | below 0.01 mg/l (not detected above this) |
| 24 Mar 2025, 12:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Feb 2025, 08:35 | 0.064 | 0.064 mg/l |
| 23 Jan 2025, 11:08 | 0.068 | 0.068 mg/l |
| 12 Dec 2024, 12:25 | 0.11 | 0.11 mg/l |
| 21 Nov 2024, 09:39 | 0.089 | 0.089 mg/l |
| 31 Oct 2024, 12:25 | 0.092 | 0.092 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
699 µS/cm
Sampled 21 May 2026, 4 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 09:56 | 699 | 699 µS/cm |
| 11 May 2026, 15:40 | 700 | 700 µS/cm |
| 24 Apr 2026, 12:06 | 764 | 764 µS/cm |
| 9 Apr 2026, 10:33 | 726 | 726 µS/cm |
| 27 Mar 2026, 11:59 | 751 | 751 µS/cm |
| 13 Mar 2026, 13:39 | 717 | 717 µS/cm |
| 24 Feb 2026, 10:47 | 721 | 721 µS/cm |
| 13 Feb 2026, 13:05 | 639 | 639 µS/cm |
| 28 Jan 2026, 13:12 | 992 | 992 µS/cm |
| 13 Jan 2026, 13:36 | 661 | 661 µS/cm |
| 16 Dec 2025, 12:09 | 674 | 674 µS/cm |
| 10 Dec 2025, 10:05 | 687 | 687 µS/cm |
| 27 Nov 2025, 10:37 | 641 | 641 µS/cm |
| 12 Nov 2025, 13:24 | 831 | 831 µS/cm |
| 17 Oct 2025, 12:44 | 827 | 827 µS/cm |
| 26 Sep 2025, 12:36 | 830 | 830 µS/cm |
| 11 Sep 2025, 12:18 | 4509 | 4509 µS/cm |
| 29 Aug 2025, 11:53 | 6747 | 6747 µS/cm |
| 22 Aug 2025, 09:19 | 2265 | 2265 µS/cm |
| 14 Aug 2025, 10:02 | 2222 | 2222 µS/cm |
| 25 Jul 2025, 09:08 | 955 | 955 µS/cm |
| 8 Jul 2025, 13:05 | 604 | 604 µS/cm |
| 25 Jun 2025, 11:43 | 685 | 685 µS/cm |
| 13 Jun 2025, 08:55 | 813 | 813 µS/cm |
| 22 May 2025, 09:33 | 701 | 701 µS/cm |
| 21 May 2025, 11:06 | 750 | 750 µS/cm |
| 16 Apr 2025, 14:15 | 767 | 767 µS/cm |
| 24 Mar 2025, 12:06 | 730 | 730 µS/cm |
| 20 Feb 2025, 08:35 | 934 | 934 µS/cm |
| 23 Jan 2025, 11:08 | 920 | 920 µS/cm |
| 12 Dec 2024, 12:25 | 556 | 556 µS/cm |
| 21 Nov 2024, 09:39 | 694 | 694 µS/cm |
| 31 Oct 2024, 12:25 | 816 | 816 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 | 33 | Oct 2024 – May 2026 | 108.9% 21 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2024 – May 2026 | 10.9 mg/l 21 May 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2024 – May 2026 | 15.1 °C 21 May 2026 |
| pH 0061 | River water | 33 | Oct 2024 – May 2026 | 8.25 21 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 33 | Oct 2024 – May 2026 | 0.059 mg/l 21 May 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2024 – May 2026 | 4.75 mg/l 21 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2024 – May 2026 | below 0.01 mg/l 21 May 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2024 – May 2026 | 699 µS/cm 21 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 33 | Oct 2024 – May 2026 | 170 mg/l 21 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2024 – May 2026 | 0.00156 mg/l 21 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Apr 2025 – May 2026 | 3.1 mg/l 21 May 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2024 – May 2026 | 0.053 mg/l 21 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 33 | Oct 2024 – May 2026 | 4.8 mg/l 21 May 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.