Alconbury Brook Brampton Racecourse Gauge
EA name: ALCONBURY BK.BRAMPTON RACECOURSE GAUGE
Environment Agency sampling point AN-25M01 · 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
- 1 Sep 2026, 09:4830 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 35 since 16 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 520800, 271800As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Alconbury Brook
- River, by the map
- Alconbury BrookPlaced on the river its name gives, 43 m from the line.
- Next gauge downstream
- Houghton On the River Great Ouse · 8.6 km along the riverBeside Brampton Racecourse, BRAMPTON RACECOURSE GS: too close to say above or below.
- Nearest gauge upstream
- Alconbury Weston On the Alconbury Brook · 8.8 km along the river
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Planned investigation (local monitoring) (4 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
18.5%
Sampled 1 Sep 2026, 30 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 18.5 | 18.5% |
| 5 Aug 2026, 08:30 | 38 | 38% |
| 7 Jul 2026, 15:09 | 166 | 166% |
| 8 Jun 2026, 11:21 | 72.3 | 72.3% |
| 18 May 2026, 08:45 | 90.7 | 90.7% |
| 29 Apr 2026, 12:40 | 100.5 | 100.5% |
| 7 Apr 2026, 15:46 | 108.2 | 108.2% |
| 2 Mar 2026, 15:10 | 98.3 | 98.3% |
| 4 Feb 2026, 10:12 | 88.5 | 88.5% |
| 5 Jan 2026, 15:11 | 89.8 | 89.8% |
| 4 Dec 2025, 12:07 | 81.2 | 81.2% |
| 7 Nov 2025, 11:50 | 27 | 27% |
| 8 Oct 2025, 09:37 | 17.3 | 17.3% |
| 10 Jul 2025, 17:13 | 64.3 | 64.3% |
| 8 Apr 2025, 12:52 | 120.8 | 120.8% |
| 2 Apr 2025, 13:19 | 103.9 | 103.9% |
| 3 Mar 2025, 14:58 | 105.1 | 105.1% |
| 5 Feb 2025, 15:24 | 96.1 | 96.1% |
| 20 Jan 2025, 12:32 | 91.8 | 91.8% |
| 2 Dec 2024, 14:59 | 86.8 | 86.8% |
| 18 Nov 2024, 15:03 | 72.4 | 72.4% |
| 14 Oct 2024, 12:56 | 79.9 | 79.9% |
| 18 Sep 2024, 09:26 | 39.7 | 39.7% |
| 19 Aug 2024, 12:22 | 63.4 | 63.4% |
| 17 Jul 2024, 10:45 | 87 | 87% |
| 19 Jun 2024, 11:18 | 108.5 | 108.5% |
| 13 May 2024, 10:49 | 93.2 | 93.2% |
| 16 Apr 2024, 17:02 | 82.1 | 82.1% |
| 18 Mar 2024, 12:08 | 95.2 | 95.2% |
| 22 Feb 2024, 11:15 | 92.8 | 92.8% |
| 16 Jan 2024, 11:09 | 90.3 | 90.3% |
| 4 Dec 2023, 12:23 | 88.3 | 88.3% |
| 20 Nov 2023, 10:48 | 79.7 | 79.7% |
| 16 Oct 2023, 12:25 | 59.4 | 59.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
1.78 mg/l
Sampled 1 Sep 2026, 30 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 1.78 | 1.78 mg/l |
| 5 Aug 2026, 08:30 | 3.52 | 3.52 mg/l |
| 7 Jul 2026, 15:09 | 13.9 | 13.9 mg/l |
| 8 Jun 2026, 11:21 | 7.1 | 7.1 mg/l |
| 18 May 2026, 08:45 | 9.75 | 9.75 mg/l |
| 29 Apr 2026, 12:40 | 10.4 | 10.4 mg/l |
| 7 Apr 2026, 15:46 | 11.5 | 11.5 mg/l |
| 2 Mar 2026, 15:10 | 11 | 11 mg/l |
| 4 Feb 2026, 10:12 | 11.2 | 11.2 mg/l |
| 5 Jan 2026, 15:11 | 12.8 | 12.8 mg/l |
| 4 Dec 2025, 12:07 | 9.94 | 9.94 mg/l |
| 7 Nov 2025, 11:50 | 2.91 | 2.91 mg/l |
| 8 Oct 2025, 09:37 | 1.86 | 1.86 mg/l |
| 10 Jul 2025, 17:13 | 5.97 | 5.97 mg/l |
| 8 Apr 2025, 12:52 | 13 | 13 mg/l |
| 2 Apr 2025, 13:19 | 11.4 | 11.4 mg/l |
| 3 Mar 2025, 14:58 | 13.1 | 13.1 mg/l |
| 5 Feb 2025, 15:24 | 12.1 | 12.1 mg/l |
| 20 Jan 2025, 12:32 | 11.9 | 11.9 mg/l |
| 2 Dec 2024, 14:59 | 10 | 10 mg/l |
| 18 Nov 2024, 15:03 | 8.6 | 8.6 mg/l |
| 14 Oct 2024, 12:56 | 8.98 | 8.98 mg/l |
| 18 Sep 2024, 09:26 | 4.22 | 4.22 mg/l |
| 19 Aug 2024, 12:22 | 6.06 | 6.06 mg/l |
| 17 Jul 2024, 10:45 | 8.4 | 8.4 mg/l |
| 19 Jun 2024, 11:18 | 10.5 | 10.5 mg/l |
| 13 May 2024, 10:49 | 8.66 | 8.66 mg/l |
| 16 Apr 2024, 17:02 | 9.41 | 9.41 mg/l |
| 18 Mar 2024, 12:08 | 10.7 | 10.7 mg/l |
| 22 Feb 2024, 11:15 | 10.9 | 10.9 mg/l |
| 16 Jan 2024, 11:09 | 12.2 | 12.2 mg/l |
| 4 Dec 2023, 12:23 | 11.1 | 11.1 mg/l |
| 20 Nov 2023, 10:48 | 9.07 | 9.07 mg/l |
| 16 Oct 2023, 12:25 | 6.69 | 6.69 mg/l |
Water temperature
code 0076 · °C
17.1 °C
Sampled 1 Sep 2026, 30 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 17.1 | 17.1 °C |
| 5 Aug 2026, 08:30 | 18.9 | 18.9 °C |
| 7 Jul 2026, 15:09 | 24.1 | 24.1 °C |
| 8 Jun 2026, 11:21 | 16.1 | 16.1 °C |
| 18 May 2026, 08:45 | 12 | 12 °C |
| 29 Apr 2026, 12:40 | 13.5 | 13.5 °C |
| 7 Apr 2026, 15:46 | 12.4 | 12.4 °C |
| 2 Mar 2026, 15:10 | 10.3 | 10.3 °C |
| 4 Feb 2026, 10:12 | 5.3 | 5.3 °C |
| 5 Jan 2026, 15:11 | 0.7 | 0.7 °C |
| 4 Dec 2025, 12:07 | 6.6 | 6.6 °C |
| 7 Nov 2025, 11:50 | 11.9 | 11.9 °C |
| 8 Oct 2025, 09:37 | 12.1 | 12.1 °C |
| 10 Jul 2025, 17:13 | 18.8 | 18.8 °C |
| 8 Apr 2025, 12:52 | 11.8 | 11.8 °C |
| 2 Apr 2025, 13:19 | 11.3 | 11.3 °C |
| 3 Mar 2025, 14:58 | 5.8 | 5.8 °C |
| 5 Feb 2025, 15:24 | 5.5 | 5.5 °C |
| 20 Jan 2025, 12:32 | 4.4 | 4.4 °C |
| 2 Dec 2024, 14:59 | 9 | 9 °C |
| 18 Nov 2024, 15:03 | 7.8 | 7.8 °C |
| 14 Oct 2024, 12:56 | 10.1 | 10.1 °C |
| 18 Sep 2024, 09:26 | 12.5 | 12.5 °C |
| 19 Aug 2024, 12:22 | 17.4 | 17.4 °C |
| 17 Jul 2024, 10:45 | 16.9 | 16.9 °C |
| 19 Jun 2024, 11:18 | 16.9 | 16.9 °C |
| 13 May 2024, 10:49 | 18.8 | 18.8 °C |
| 16 Apr 2024, 17:02 | 9.3 | 9.3 °C |
| 18 Mar 2024, 12:08 | 10 | 10 °C |
| 22 Feb 2024, 11:15 | 8.4 | 8.4 °C |
| 16 Jan 2024, 11:09 | 2.9 | 2.9 °C |
| 4 Dec 2023, 12:23 | 5.7 | 5.7 °C |
| 20 Nov 2023, 10:48 | 9.6 | 9.6 °C |
| 16 Oct 2023, 12:25 | 10 | 10 °C |
pH
code 0061
7.24
Sampled 1 Sep 2026, 30 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 7.24 | 7.24 |
| 5 Aug 2026, 08:30 | 7.24 | 7.24 |
| 7 Jul 2026, 15:09 | 8.35 | 8.35 |
| 8 Jun 2026, 11:21 | 7.67 | 7.67 |
| 18 May 2026, 08:45 | 7.77 | 7.77 |
| 29 Apr 2026, 12:40 | 7.89 | 7.89 |
| 7 Apr 2026, 15:46 | 8.08 | 8.08 |
| 2 Mar 2026, 15:10 | 8.16 | 8.16 |
| 4 Feb 2026, 10:12 | 8.06 | 8.06 |
| 5 Jan 2026, 15:11 | 7.9 | 7.9 |
| 4 Dec 2025, 12:07 | 7.91 | 7.91 |
| 7 Nov 2025, 11:50 | 7.35 | 7.35 |
| 8 Oct 2025, 09:37 | 7.24 | 7.24 |
| 10 Jul 2025, 17:13 | 7.53 | 7.53 |
| 8 Apr 2025, 12:52 | 8.18 | 8.18 |
| 2 Apr 2025, 13:19 | 8.14 | 8.14 |
| 3 Mar 2025, 14:58 | 8.27 | 8.27 |
| 5 Feb 2025, 15:24 | 8.19 | 8.19 |
| 20 Jan 2025, 12:32 | 8.12 | 8.12 |
| 2 Dec 2024, 14:59 | 8.02 | 8.02 |
| 18 Nov 2024, 15:03 | 7.86 | 7.86 |
| 14 Oct 2024, 12:56 | 7.88 | 7.88 |
| 18 Sep 2024, 09:26 | 7.37 | 7.37 |
| 19 Aug 2024, 12:22 | 7.58 | 7.58 |
| 17 Jul 2024, 10:45 | 7.86 | 7.86 |
| 19 Jun 2024, 11:18 | 8.05 | 8.05 |
| 13 May 2024, 10:49 | 8.06 | 8.06 |
| 16 Apr 2024, 17:02 | 8.14 | 8.14 |
| 18 Mar 2024, 12:08 | 8.16 | 8.16 |
| 22 Feb 2024, 11:15 | 8.02 | 8.02 |
| 16 Jan 2024, 11:09 | 8.07 | 8.07 |
| 4 Dec 2023, 12:23 | 7.85 | 7.85 |
| 20 Nov 2023, 10:48 | 7.95 | 7.95 |
| 16 Oct 2023, 12:25 | 7.64 | 7.64 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.075 mg/l
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 0.075 | 0.075 mg/l |
| 5 Aug 2026, 08:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2026, 15:09 | 0.035 | 0.035 mg/l |
| 8 Jun 2026, 11:21 | 0.044 | 0.044 mg/l |
| 18 May 2026, 08:45 | 0.082 | 0.082 mg/l |
| 29 Apr 2026, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 15:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 10:12 | 0.07 | 0.07 mg/l |
| 5 Jan 2026, 15:11 | 0.21 | 0.21 mg/l |
| 4 Dec 2025, 12:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 11:50 | 0.049 | 0.049 mg/l |
| 8 Oct 2025, 09:37 | 0.077 | 0.077 mg/l |
| 8 Apr 2025, 12:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 13:19 | 0.059 | 0.059 mg/l |
| 3 Mar 2025, 14:58 | 0.038 | 0.038 mg/l |
| 5 Feb 2025, 15:24 | 0.053 | 0.053 mg/l |
| 20 Jan 2025, 12:32 | 0.13 | 0.13 mg/l |
| 18 Nov 2024, 15:03 | 0.04 | 0.04 mg/l |
| 14 Oct 2024, 12:56 | 0.035 | 0.035 mg/l |
| 18 Sep 2024, 09:26 | 0.046 | 0.046 mg/l |
| 19 Aug 2024, 12:22 | 0.049 | 0.049 mg/l |
| 17 Jul 2024, 10:45 | 0.03 | 0.03 mg/l |
| 19 Jun 2024, 11:18 | 0.039 | 0.039 mg/l |
| 13 May 2024, 10:49 | 0.075 | 0.075 mg/l |
| 16 Apr 2024, 17:02 | 0.067 | 0.067 mg/l |
| 18 Mar 2024, 12:08 | 0.071 | 0.071 mg/l |
| 22 Feb 2024, 11:15 | 0.04 | 0.04 mg/l |
| 16 Jan 2024, 11:09 | 0.12 | 0.12 mg/l |
| 4 Dec 2023, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2023, 10:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 12:25 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 1 Sep 2026, 30 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | <0.196 | below 0.196 mg/l (not detected above this) |
| 5 Aug 2026, 08:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 7 Jul 2026, 15:09 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 Jun 2026, 11:21 | 2.93 | 2.93 mg/l |
| 18 May 2026, 08:45 | 4.14 | 4.14 mg/l |
| 29 Apr 2026, 12:40 | 3.66 | 3.66 mg/l |
| 2 Mar 2026, 15:10 | 11 | 11 mg/l |
| 4 Feb 2026, 10:12 | 16 | 16 mg/l |
| 5 Jan 2026, 15:11 | 17.9 | 17.9 mg/l |
| 4 Dec 2025, 12:07 | 26 | 26 mg/l |
| 7 Nov 2025, 11:50 | 4.48 | 4.48 mg/l |
| 8 Oct 2025, 09:37 | 5.88 | 5.88 mg/l |
| 8 Apr 2025, 12:52 | 7.05 | 7.05 mg/l |
| 2 Apr 2025, 13:19 | 7.92 | 7.92 mg/l |
| 3 Mar 2025, 14:58 | 12 | 12 mg/l |
| 5 Feb 2025, 15:24 | 13 | 13 mg/l |
| 20 Jan 2025, 12:32 | 12 | 12 mg/l |
| 2 Dec 2024, 14:59 | 15 | 15 mg/l |
| 18 Nov 2024, 15:03 | 8.27 | 8.27 mg/l |
| 14 Oct 2024, 12:56 | 15 | 15 mg/l |
| 18 Sep 2024, 09:26 | 4.65 | 4.65 mg/l |
| 19 Aug 2024, 12:22 | 3.24 | 3.24 mg/l |
| 17 Jul 2024, 10:45 | 4.02 | 4.02 mg/l |
| 19 Jun 2024, 11:18 | 3.96 | 3.96 mg/l |
| 13 May 2024, 10:49 | 5.82 | 5.82 mg/l |
| 16 Apr 2024, 17:02 | 6.16 | 6.16 mg/l |
| 18 Mar 2024, 12:08 | 6.86 | 6.86 mg/l |
| 22 Feb 2024, 11:15 | 7.68 | 7.68 mg/l |
| 16 Jan 2024, 11:09 | 9.07 | 9.07 mg/l |
| 4 Dec 2023, 12:23 | 12 | 12 mg/l |
| 20 Nov 2023, 10:48 | 17 | 17 mg/l |
| 16 Oct 2023, 12:25 | 12.9 | 12.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.64 mg/l
Sampled 1 Sep 2026, 30 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 0.64 | 0.64 mg/l |
| 7 Jul 2026, 15:09 | 0.24 | 0.24 mg/l |
| 8 Jun 2026, 11:21 | 0.22 | 0.22 mg/l |
| 18 May 2026, 08:45 | 0.3 | 0.3 mg/l |
| 29 Apr 2026, 12:40 | 0.16 | 0.16 mg/l |
| 2 Mar 2026, 15:10 | 0.059 | 0.059 mg/l |
| 4 Feb 2026, 10:12 | 0.064 | 0.064 mg/l |
| 5 Jan 2026, 15:11 | 0.14 | 0.14 mg/l |
| 4 Dec 2025, 12:07 | 0.097 | 0.097 mg/l |
| 7 Nov 2025, 11:50 | 0.49 | 0.49 mg/l |
| 8 Oct 2025, 09:37 | 0.48 | 0.48 mg/l |
| 8 Apr 2025, 12:52 | 0.15 | 0.15 mg/l |
| 2 Apr 2025, 13:19 | 0.14 | 0.14 mg/l |
| 3 Mar 2025, 14:58 | 0.052 | 0.052 mg/l |
| 5 Feb 2025, 15:24 | 0.078 | 0.078 mg/l |
| 20 Jan 2025, 12:32 | 0.11 | 0.11 mg/l |
| 2 Dec 2024, 14:59 | 0.076 | 0.076 mg/l |
| 18 Nov 2024, 15:03 | 0.26 | 0.26 mg/l |
| 14 Oct 2024, 12:56 | 0.1 | 0.1 mg/l |
| 18 Sep 2024, 09:26 | 0.63 | 0.63 mg/l |
| 19 Aug 2024, 12:22 | 0.42 | 0.42 mg/l |
| 17 Jul 2024, 10:45 | 0.34 | 0.34 mg/l |
| 19 Jun 2024, 11:18 | 0.23 | 0.23 mg/l |
| 13 May 2024, 10:49 | 0.12 | 0.12 mg/l |
| 16 Apr 2024, 17:02 | 0.089 | 0.089 mg/l |
| 18 Mar 2024, 12:08 | 0.076 | 0.076 mg/l |
| 22 Feb 2024, 11:15 | 0.064 | 0.064 mg/l |
| 16 Jan 2024, 11:09 | 0.083 | 0.083 mg/l |
| 4 Dec 2023, 12:23 | 0.11 | 0.11 mg/l |
| 20 Nov 2023, 10:48 | 0.084 | 0.084 mg/l |
| 16 Oct 2023, 12:25 | 0.2 | 0.2 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
887 µS/cm
Sampled 1 Sep 2026, 30 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:48 | 887 | 887 µS/cm |
| 5 Aug 2026, 08:30 | 1239 | 1239 µS/cm |
| 7 Jul 2026, 15:09 | 986 | 986 µS/cm |
| 8 Jun 2026, 11:21 | 820 | 820 µS/cm |
| 18 May 2026, 08:45 | 1037 | 1037 µS/cm |
| 29 Apr 2026, 12:40 | 945 | 945 µS/cm |
| 7 Apr 2026, 15:46 | 919 | 919 µS/cm |
| 2 Mar 2026, 15:10 | 691 | 691 µS/cm |
| 4 Feb 2026, 10:12 | 751 | 751 µS/cm |
| 5 Jan 2026, 15:11 | 986 | 986 µS/cm |
| 4 Dec 2025, 12:07 | 835 | 835 µS/cm |
| 7 Nov 2025, 11:50 | 1073 | 1073 µS/cm |
| 8 Oct 2025, 09:37 | 1109 | 1109 µS/cm |
| 10 Jul 2025, 17:13 | 1138 | 1138 µS/cm |
| 8 Apr 2025, 12:52 | 967 | 967 µS/cm |
| 2 Apr 2025, 13:19 | 982 | 982 µS/cm |
| 3 Mar 2025, 14:58 | 885 | 885 µS/cm |
| 5 Feb 2025, 15:24 | 872 | 872 µS/cm |
| 20 Jan 2025, 12:32 | 904 | 904 µS/cm |
| 2 Dec 2024, 14:59 | 835 | 835 µS/cm |
| 18 Nov 2024, 15:03 | 1007 | 1007 µS/cm |
| 14 Oct 2024, 12:56 | 803 | 803 µS/cm |
| 18 Sep 2024, 09:26 | 1006 | 1006 µS/cm |
| 19 Aug 2024, 12:22 | 1089 | 1089 µS/cm |
| 17 Jul 2024, 10:45 | 840 | 840 µS/cm |
| 19 Jun 2024, 11:18 | 949 | 949 µS/cm |
| 13 May 2024, 10:49 | 894 | 894 µS/cm |
| 16 Apr 2024, 17:02 | 840 | 840 µS/cm |
| 18 Mar 2024, 12:08 | 803 | 803 µS/cm |
| 22 Feb 2024, 11:15 | 710 | 710 µS/cm |
| 16 Jan 2024, 11:09 | 798 | 798 µS/cm |
| 4 Dec 2023, 12:23 | 642 | 642 µS/cm |
| 20 Nov 2023, 10:48 | 798 | 798 µS/cm |
| 16 Oct 2023, 12:25 | 777 | 777 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 18.5% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 1.78 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 17.1 °C 1 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 7.24 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | 0.075 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 32 | Oct 2023 – Sep 2026 | below 0.196 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – Sep 2026 | 0.64 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 887 µS/cm 1 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Oct 2023 – Sep 2026 | 190 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Sep 2026 | 0.00041 mg/l 1 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 1.5 mg/l 2 Apr 2025 |
| Iron, Dissolved 6460 | River water | 12 | Oct 2023 – Jul 2026 | 55 µg/l 7 Jul 2026 |
| Nitrite as N 0118 | River water | 32 | Oct 2023 – Sep 2026 | below 0.004 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Oct 2023 – Sep 2026 | below 0.2 mg/l 1 Sep 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.