River Granta Stapleford Bridge
EA name: R.GRANTA STAPLEFORD BRIDGE
Environment Agency sampling point AN-28M07 · 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
- 3 Sep 2026, 10:5328 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 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 547200, 251500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Granta
- River, by the map
- River GrantaPlaced on the river its name gives, 37 m from the line.
- Next gauge downstream
- Cambridge Jesus Lock On the River Cam · 15 km along the river (the path rests on a repair to the map)Beside Stapleford, STAPLEFORD GS: too close to say above or below.
- Nearest gauge upstream
- Babraham On the River Granta · 4.6 km along the riverBABRAHAM GS 4.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
49.6%
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 49.6 | 49.6% |
| 8 Jul 2026, 11:01 | 62.7 | 62.7% |
| 3 Jun 2026, 10:36 | 75.9 | 75.9% |
| 19 May 2026, 10:50 | 84.6 | 84.6% |
| 27 Apr 2026, 10:42 | 100.3 | 100.3% |
| 3 Mar 2026, 08:47 | 95.5 | 95.5% |
| 9 Feb 2026, 11:21 | 95.1 | 95.1% |
| 20 Jan 2026, 10:10 | 94.1 | 94.1% |
| 4 Dec 2025, 09:23 | 81.2 | 81.2% |
| 7 Nov 2025, 11:27 | 59.5 | 59.5% |
| 3 Oct 2025, 10:00 | 79.1 | 79.1% |
| 8 Sep 2025, 11:17 | 66.7 | 66.7% |
| 6 Aug 2025, 12:30 | 77.2 | 77.2% |
| 1 Jul 2025, 09:32 | 36.5 | 36.5% |
| 5 Jun 2025, 09:29 | 77 | 77% |
| 7 May 2025, 12:01 | 110.3 | 110.3% |
| 9 Apr 2025, 08:35 | 96.6 | 96.6% |
| 7 Mar 2025, 10:28 | 105.9 | 105.9% |
| 5 Feb 2025, 12:25 | 101.6 | 101.6% |
| 21 Jan 2025, 11:36 | 88.8 | 88.8% |
| 5 Dec 2024, 10:28 | 89.6 | 89.6% |
| 20 Nov 2024, 10:12 | 93.7 | 93.7% |
| 9 May 2024, 13:45 | 128.5 | 128.5% |
| 15 Apr 2024, 11:58 | 110.9 | 110.9% |
| 20 Mar 2024, 09:29 | 94.8 | 94.8% |
| 20 Feb 2024, 09:01 | 76.5 | 76.5% |
| 15 Jan 2024, 10:58 | 96.1 | 96.1% |
| 7 Dec 2023, 09:42 | 94.3 | 94.3% |
| 20 Nov 2023, 10:42 | 91.4 | 91.4% |
| 16 Oct 2023, 10:03 | 85.7 | 85.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
4.77 mg/l
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 4.77 | 4.77 mg/l |
| 8 Jul 2026, 11:01 | 5.65 | 5.65 mg/l |
| 3 Jun 2026, 10:36 | 7.55 | 7.55 mg/l |
| 19 May 2026, 10:50 | 9.2 | 9.2 mg/l |
| 27 Apr 2026, 10:42 | 10.9 | 10.9 mg/l |
| 3 Mar 2026, 08:47 | 11.2 | 11.2 mg/l |
| 9 Feb 2026, 11:21 | 11.3 | 11.3 mg/l |
| 20 Jan 2026, 10:10 | 11.2 | 11.2 mg/l |
| 4 Dec 2025, 09:23 | 10.1 | 10.1 mg/l |
| 7 Nov 2025, 11:27 | 6.33 | 6.33 mg/l |
| 3 Oct 2025, 10:00 | 8.28 | 8.28 mg/l |
| 8 Sep 2025, 11:17 | 6.5 | 6.5 mg/l |
| 6 Aug 2025, 12:30 | 7.73 | 7.73 mg/l |
| 1 Jul 2025, 09:32 | 3.25 | 3.25 mg/l |
| 5 Jun 2025, 09:29 | 8 | 8 mg/l |
| 7 May 2025, 12:01 | 12.3 | 12.3 mg/l |
| 9 Apr 2025, 08:35 | 11.6 | 11.6 mg/l |
| 7 Mar 2025, 10:28 | 12.4 | 12.4 mg/l |
| 5 Feb 2025, 12:25 | 12.4 | 12.4 mg/l |
| 21 Jan 2025, 11:36 | 11.4 | 11.4 mg/l |
| 5 Dec 2024, 10:28 | 10.4 | 10.4 mg/l |
| 20 Nov 2024, 10:12 | 12.1 | 12.1 mg/l |
| 9 May 2024, 13:45 | 12.8 | 12.8 mg/l |
| 15 Apr 2024, 11:58 | 12.3 | 12.3 mg/l |
| 20 Mar 2024, 09:29 | 10.4 | 10.4 mg/l |
| 20 Feb 2024, 09:01 | 8.96 | 8.96 mg/l |
| 15 Jan 2024, 10:58 | 12.3 | 12.3 mg/l |
| 7 Dec 2023, 09:42 | 11.9 | 11.9 mg/l |
| 20 Nov 2023, 10:42 | 10.3 | 10.3 mg/l |
| 16 Oct 2023, 10:03 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
17.1 °C
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 17.1 | 17.1 °C |
| 8 Jul 2026, 11:01 | 20.3 | 20.3 °C |
| 3 Jun 2026, 10:36 | 15.5 | 15.5 °C |
| 19 May 2026, 10:50 | 11.5 | 11.5 °C |
| 27 Apr 2026, 10:42 | 11.4 | 11.4 °C |
| 3 Mar 2026, 08:47 | 8.3 | 8.3 °C |
| 9 Feb 2026, 11:21 | 7.9 | 7.9 °C |
| 20 Jan 2026, 10:10 | 7.6 | 7.6 °C |
| 4 Dec 2025, 09:23 | 6 | 6 °C |
| 7 Nov 2025, 11:27 | 12.5 | 12.5 °C |
| 3 Oct 2025, 10:00 | 13.2 | 13.2 °C |
| 8 Sep 2025, 11:17 | 16.5 | 16.5 °C |
| 6 Aug 2025, 12:30 | 15.2 | 15.2 °C |
| 1 Jul 2025, 09:32 | 21 | 21 °C |
| 5 Jun 2025, 09:29 | 13.5 | 13.5 °C |
| 7 May 2025, 12:01 | 10.3 | 10.3 °C |
| 9 Apr 2025, 08:35 | 7.3 | 7.3 °C |
| 7 Mar 2025, 10:28 | 8.5 | 8.5 °C |
| 5 Feb 2025, 12:25 | 6.6 | 6.6 °C |
| 21 Jan 2025, 11:36 | 4.9 | 4.9 °C |
| 5 Dec 2024, 10:28 | 8.8 | 8.8 °C |
| 20 Nov 2024, 10:12 | 4.4 | 4.4 °C |
| 9 May 2024, 13:45 | 15.5 | 15.5 °C |
| 15 Apr 2024, 11:58 | 10.6 | 10.6 °C |
| 20 Mar 2024, 09:29 | 11 | 11 °C |
| 20 Feb 2024, 09:01 | 8.4 | 8.4 °C |
| 15 Jan 2024, 10:58 | 5 | 5 °C |
| 7 Dec 2023, 09:42 | 5.5 | 5.5 °C |
| 20 Nov 2023, 10:42 | 9.8 | 9.8 °C |
| 16 Oct 2023, 10:03 | 7.7 | 7.7 °C |
pH
code 0061
7.48
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 7.48 | 7.48 |
| 8 Jul 2026, 11:01 | 7.94 | 7.94 |
| 3 Jun 2026, 10:36 | 8.04 | 8.04 |
| 19 May 2026, 10:50 | 8.07 | 8.07 |
| 27 Apr 2026, 10:42 | 8.2 | 8.2 |
| 3 Mar 2026, 08:47 | 8.23 | 8.23 |
| 9 Feb 2026, 11:21 | 8.32 | 8.32 |
| 20 Jan 2026, 10:10 | 8.31 | 8.31 |
| 4 Dec 2025, 09:23 | 7.89 | 7.89 |
| 7 Nov 2025, 11:27 | 7.73 | 7.73 |
| 3 Oct 2025, 10:00 | 7.98 | 7.98 |
| 8 Sep 2025, 11:17 | 8.02 | 8.02 |
| 6 Aug 2025, 12:30 | 8.1 | 8.1 |
| 1 Jul 2025, 09:32 | 7.72 | 7.72 |
| 5 Jun 2025, 09:29 | 8.12 | 8.12 |
| 7 May 2025, 12:01 | 8.31 | 8.31 |
| 9 Apr 2025, 08:35 | 8.17 | 8.17 |
| 7 Mar 2025, 10:28 | 8.28 | 8.28 |
| 5 Feb 2025, 12:25 | 8.28 | 8.28 |
| 21 Jan 2025, 11:36 | 8.26 | 8.26 |
| 5 Dec 2024, 10:28 | 8.14 | 8.14 |
| 20 Nov 2024, 10:12 | 8.19 | 8.19 |
| 9 May 2024, 13:45 | 8.41 | 8.41 |
| 15 Apr 2024, 11:58 | 8.35 | 8.35 |
| 20 Mar 2024, 09:29 | 8 | 8 |
| 20 Feb 2024, 09:01 | 8.05 | 8.05 |
| 15 Jan 2024, 10:58 | 8.23 | 8.23 |
| 7 Dec 2023, 09:42 | 8.23 | 8.23 |
| 20 Nov 2023, 10:42 | 8.17 | 8.17 |
| 16 Oct 2023, 10:03 | 8 | 8 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2026, 11:01 | 0.031 | 0.031 mg/l |
| 3 Jun 2026, 10:36 | 0.038 | 0.038 mg/l |
| 19 May 2026, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2026, 08:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jan 2026, 10:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 09:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 11:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2025, 10:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Sep 2025, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2025, 12:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2025, 09:32 | 0.13 | 0.13 mg/l |
| 5 Jun 2025, 09:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 May 2025, 12:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2025, 08:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2025, 10:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2025, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2025, 11:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Dec 2024, 10:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2024, 10:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 May 2024, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2024, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2024, 09:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2024, 09:01 | 0.1 | 0.1 mg/l |
| 15 Jan 2024, 10:58 | 0.031 | 0.031 mg/l |
| 7 Dec 2023, 09:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2023, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 10:03 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.27 mg/l
Sampled 3 Sep 2026, 28 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 3.27 | 3.27 mg/l |
| 8 Jul 2026, 11:01 | 8.77 | 8.77 mg/l |
| 3 Jun 2026, 10:36 | 11 | 11 mg/l |
| 19 May 2026, 10:50 | 11 | 11 mg/l |
| 27 Apr 2026, 10:42 | 9.97 | 9.97 mg/l |
| 3 Mar 2026, 08:47 | 11 | 11 mg/l |
| 9 Feb 2026, 11:21 | 11 | 11 mg/l |
| 20 Jan 2026, 10:10 | 14 | 14 mg/l |
| 4 Dec 2025, 09:23 | 11 | 11 mg/l |
| 7 Nov 2025, 11:27 | 10.9 | 10.9 mg/l |
| 3 Oct 2025, 10:00 | 12 | 12 mg/l |
| 8 Sep 2025, 11:17 | 6.09 | 6.09 mg/l |
| 6 Aug 2025, 12:30 | 9.59 | 9.59 mg/l |
| 1 Jul 2025, 09:32 | 7.47 | 7.47 mg/l |
| 5 Jun 2025, 09:29 | 11 | 11 mg/l |
| 7 May 2025, 12:01 | 12 | 12 mg/l |
| 9 Apr 2025, 08:35 | 9.98 | 9.98 mg/l |
| 7 Mar 2025, 10:28 | 11 | 11 mg/l |
| 5 Feb 2025, 12:25 | 12 | 12 mg/l |
| 21 Jan 2025, 11:36 | 12 | 12 mg/l |
| 20 Nov 2024, 10:12 | 9.99 | 9.99 mg/l |
| 9 May 2024, 13:45 | 9.98 | 9.98 mg/l |
| 15 Apr 2024, 11:58 | 9.98 | 9.98 mg/l |
| 20 Mar 2024, 09:29 | 9.78 | 9.78 mg/l |
| 20 Feb 2024, 09:01 | 8.08 | 8.08 mg/l |
| 15 Jan 2024, 10:58 | 11 | 11 mg/l |
| 7 Dec 2023, 09:42 | 11 | 11 mg/l |
| 20 Nov 2023, 10:42 | 12 | 12 mg/l |
| 16 Oct 2023, 10:03 | 11 | 11 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.21 mg/l
Sampled 3 Sep 2026, 28 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 0.21 | 0.21 mg/l |
| 8 Jul 2026, 11:01 | 0.28 | 0.28 mg/l |
| 3 Jun 2026, 10:36 | 0.22 | 0.22 mg/l |
| 19 May 2026, 10:50 | 0.17 | 0.17 mg/l |
| 27 Apr 2026, 10:42 | 0.039 | 0.039 mg/l |
| 3 Mar 2026, 08:47 | 0.085 | 0.085 mg/l |
| 9 Feb 2026, 11:21 | 0.079 | 0.079 mg/l |
| 20 Jan 2026, 10:10 | 0.11 | 0.11 mg/l |
| 4 Dec 2025, 09:23 | 0.25 | 0.25 mg/l |
| 7 Nov 2025, 11:27 | 0.48 | 0.48 mg/l |
| 3 Oct 2025, 10:00 | 0.38 | 0.38 mg/l |
| 8 Sep 2025, 11:17 | 0.23 | 0.23 mg/l |
| 6 Aug 2025, 12:30 | 0.19 | 0.19 mg/l |
| 1 Jul 2025, 09:32 | 0.32 | 0.32 mg/l |
| 5 Jun 2025, 09:29 | 0.19 | 0.19 mg/l |
| 7 May 2025, 12:01 | 0.12 | 0.12 mg/l |
| 9 Apr 2025, 08:35 | 0.037 | 0.037 mg/l |
| 7 Mar 2025, 10:28 | 0.1 | 0.1 mg/l |
| 5 Feb 2025, 12:25 | 0.11 | 0.11 mg/l |
| 21 Jan 2025, 11:36 | 0.13 | 0.13 mg/l |
| 20 Nov 2024, 10:12 | 0.17 | 0.17 mg/l |
| 9 May 2024, 13:45 | 0.33 | 0.33 mg/l |
| 15 Apr 2024, 11:58 | 0.21 | 0.21 mg/l |
| 20 Mar 2024, 09:29 | 0.22 | 0.22 mg/l |
| 20 Feb 2024, 09:01 | 0.12 | 0.12 mg/l |
| 15 Jan 2024, 10:58 | 0.25 | 0.25 mg/l |
| 7 Dec 2023, 09:42 | 0.094 | 0.094 mg/l |
| 20 Nov 2023, 10:42 | 0.09 | 0.09 mg/l |
| 16 Oct 2023, 10:03 | 0.37 | 0.37 mg/l |
Turbidity
code 6396 · NTU
6.4 NTU
Sampled 3 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Mar 2026, 08:47 | 6.4 | 6.4 NTU |
| 9 Feb 2026, 11:21 | 12 | 12 NTU |
| 20 Jan 2026, 10:10 | 6.7 | 6.7 NTU |
| 4 Dec 2025, 09:23 | 3.6 | 3.6 NTU |
| 7 Nov 2025, 11:27 | 11 | 11 NTU |
| 3 Oct 2025, 10:00 | 7.7 | 7.7 NTU |
| 8 Sep 2025, 11:17 | 13 | 13 NTU |
| 6 Aug 2025, 12:30 | 11 | 11 NTU |
| 9 Apr 2025, 08:35 | 4.3 | 4.3 NTU |
| 7 Mar 2025, 10:28 | 4.3 | 4.3 NTU |
| 5 Feb 2025, 12:25 | 4.9 | 4.9 NTU |
| 21 Jan 2025, 11:36 | 3.3 | 3.3 NTU |
| 5 Dec 2024, 10:28 | 4.5 | 4.5 NTU |
| 20 Nov 2024, 10:12 | 2.5 | 2.5 NTU |
| 20 Mar 2024, 09:29 | 4.6 | 4.6 NTU |
| 20 Feb 2024, 09:01 | 21 | 21 NTU |
| 15 Jan 2024, 10:58 | 4.1 | 4.1 NTU |
| 7 Dec 2023, 09:42 | 8.8 | 8.8 NTU |
| 20 Nov 2023, 10:42 | 8.3 | 8.3 NTU |
| 16 Oct 2023, 10:03 | 14 | 14 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
781 µS/cm
Sampled 3 Sep 2026, 28 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:53 | 781 | 781 µS/cm |
| 8 Jul 2026, 11:01 | 995 | 995 µS/cm |
| 3 Jun 2026, 10:36 | 924 | 924 µS/cm |
| 19 May 2026, 10:50 | 938 | 938 µS/cm |
| 27 Apr 2026, 10:42 | 821 | 821 µS/cm |
| 3 Mar 2026, 08:47 | 804 | 804 µS/cm |
| 9 Feb 2026, 11:21 | 706 | 706 µS/cm |
| 20 Jan 2026, 10:10 | 808 | 808 µS/cm |
| 4 Dec 2025, 09:23 | 1069 | 1069 µS/cm |
| 7 Nov 2025, 11:27 | 1354 | 1354 µS/cm |
| 3 Oct 2025, 10:00 | 1256 | 1256 µS/cm |
| 8 Sep 2025, 11:17 | 849 | 849 µS/cm |
| 6 Aug 2025, 12:30 | 1030 | 1030 µS/cm |
| 1 Jul 2025, 09:32 | 1096 | 1096 µS/cm |
| 5 Jun 2025, 09:29 | 925 | 925 µS/cm |
| 7 May 2025, 12:01 | 880 | 880 µS/cm |
| 9 Apr 2025, 08:35 | 796 | 796 µS/cm |
| 7 Mar 2025, 10:28 | 848 | 848 µS/cm |
| 5 Feb 2025, 12:25 | 855 | 855 µS/cm |
| 21 Jan 2025, 11:36 | 845 | 845 µS/cm |
| 5 Dec 2024, 10:28 | 802 | 802 µS/cm |
| 20 Nov 2024, 10:12 | 814 | 814 µS/cm |
| 9 May 2024, 13:45 | 819 | 819 µS/cm |
| 15 Apr 2024, 11:58 | 824 | 824 µS/cm |
| 20 Mar 2024, 09:29 | 834 | 834 µS/cm |
| 20 Feb 2024, 09:01 | 699 | 699 µS/cm |
| 15 Jan 2024, 10:58 | 855 | 855 µS/cm |
| 7 Dec 2023, 09:42 | 797 | 797 µS/cm |
| 20 Nov 2023, 10:42 | 754 | 754 µS/cm |
| 16 Oct 2023, 10:03 | 751 | 751 µS/cm |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Oct 2023 – Sep 2026 | 49.6% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Sep 2026 | 4.77 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Sep 2026 | 17.1 °C 3 Sep 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Sep 2026 | 7.48 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Sep 2026 | below 0.03 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – Sep 2026 | 3.27 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Sep 2026 | 0.21 mg/l 3 Sep 2026 |
| Turbidity 6396 | River water | 20 | Oct 2023 – Mar 2026 | 6.4 NTU 3 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Sep 2026 | 781 µS/cm 3 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Sep 2026 | 210 mg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Sep 2026 | below 0.00028 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 7 | Feb 2024 – Jan 2025 | below 1 mg/l 21 Jan 2025 |
| Chlorophyll : Acetone Extract 7887 | River water | 18 | Oct 2023 – Mar 2026 | 2 µg/l 3 Mar 2026 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Sep 2026 | 0.027 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – Sep 2026 | 3.3 mg/l 3 Sep 2026 |
| No flow /No sample 7668 | River water | 1 | Aug 2026 – Aug 2026 | No flow/discharge at sampling point 7 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 20 | Oct 2023 – Mar 2026 | 16 mg/l 3 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.