River Nar Castle Acre Road Bridge
EA name: R.NAR CASTLE ACRE RD.BR.
Environment Agency sampling point AN-58M05 · 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 Aug 2026, 11:2059 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 30 since 6 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 581900, 314800As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Nar
- River, by the map
- River NarPlaced on the river its name gives, 11 m from the line.
- Next gauge downstream
- Marham On the River Nar · 13 km along the river
- Why it was sampled
- Monitoring (national agency policy) (30 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74.7%
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 74.7 | 74.7% |
| 10 Jul 2026, 13:34 | 92.5 | 92.5% |
| 24 Jun 2026, 08:26 | 74.3 | 74.3% |
| 12 May 2026, 13:42 | 107.6 | 107.6% |
| 7 Apr 2026, 10:14 | 102 | 102% |
| 9 Mar 2026, 12:57 | 96.9 | 96.9% |
| 2 Feb 2026, 09:49 | 87.1 | 87.1% |
| 2 Jan 2026, 11:51 | 86.2 | 86.2% |
| 10 Dec 2025, 08:50 | 77.3 | 77.3% |
| 4 Nov 2025, 10:17 | 83.6 | 83.6% |
| 2 Oct 2025, 10:49 | 81.7 | 81.7% |
| 4 Sep 2025, 11:40 | 87.8 | 87.8% |
| 1 Aug 2025, 09:13 | 76.3 | 76.3% |
| 2 Apr 2025, 09:38 | 99.5 | 99.5% |
| 4 Mar 2025, 10:08 | 93.7 | 93.7% |
| 4 Feb 2025, 10:33 | 92.3 | 92.3% |
| 9 Jan 2025, 09:41 | 91.5 | 91.5% |
| 5 Dec 2024, 10:32 | 84 | 84% |
| 8 Nov 2024, 11:20 | 80.5 | 80.5% |
| 7 Oct 2024, 12:35 | 83.2 | 83.2% |
| 2 Sep 2024, 11:38 | 80.2 | 80.2% |
| 2 Aug 2024, 12:46 | 87.6 | 87.6% |
| 2 Jul 2024, 10:50 | 87.3 | 87.3% |
| 12 Jun 2024, 09:27 | 84.9 | 84.9% |
| 5 Mar 2024, 12:42 | 100.3 | 100.3% |
| 1 Feb 2024, 11:03 | 92.5 | 92.5% |
| 3 Jan 2024, 09:40 | 81.4 | 81.4% |
| 1 Dec 2023, 10:18 | 86.7 | 86.7% |
| 6 Nov 2023, 10:13 | 75.6 | 75.6% |
| 6 Oct 2023, 10:53 | 79.7 | 79.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.6 mg/l
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 7.6 | 7.6 mg/l |
| 10 Jul 2026, 13:34 | 9.01 | 9.01 mg/l |
| 24 Jun 2026, 08:26 | 7.44 | 7.44 mg/l |
| 12 May 2026, 13:42 | 11.8 | 11.8 mg/l |
| 7 Apr 2026, 10:14 | 11.5 | 11.5 mg/l |
| 9 Mar 2026, 12:57 | 10.9 | 10.9 mg/l |
| 2 Feb 2026, 09:49 | 10.2 | 10.2 mg/l |
| 2 Jan 2026, 11:51 | 10.8 | 10.8 mg/l |
| 10 Dec 2025, 08:50 | 8.88 | 8.88 mg/l |
| 4 Nov 2025, 10:17 | 9.16 | 9.16 mg/l |
| 2 Oct 2025, 10:49 | 8.99 | 8.99 mg/l |
| 4 Sep 2025, 11:40 | 9.17 | 9.17 mg/l |
| 1 Aug 2025, 09:13 | 7.93 | 7.93 mg/l |
| 2 Apr 2025, 09:38 | 11.3 | 11.3 mg/l |
| 4 Mar 2025, 10:08 | 11.2 | 11.2 mg/l |
| 4 Feb 2025, 10:33 | 11 | 11 mg/l |
| 9 Jan 2025, 09:41 | 11.8 | 11.8 mg/l |
| 5 Dec 2024, 10:32 | 9.62 | 9.62 mg/l |
| 8 Nov 2024, 11:20 | 9.03 | 9.03 mg/l |
| 7 Oct 2024, 12:35 | 8.86 | 8.86 mg/l |
| 2 Sep 2024, 11:38 | 8.19 | 8.19 mg/l |
| 2 Aug 2024, 12:46 | 8.77 | 8.77 mg/l |
| 2 Jul 2024, 10:50 | 9.3 | 9.3 mg/l |
| 12 Jun 2024, 09:27 | 9.32 | 9.32 mg/l |
| 5 Mar 2024, 12:42 | 11.6 | 11.6 mg/l |
| 1 Feb 2024, 11:03 | 11 | 11 mg/l |
| 3 Jan 2024, 09:40 | 9.63 | 9.63 mg/l |
| 1 Dec 2023, 10:18 | 10.9 | 10.9 mg/l |
| 6 Nov 2023, 10:13 | 8.7 | 8.7 mg/l |
| 6 Oct 2023, 10:53 | 8.49 | 8.49 mg/l |
Water temperature
code 0076 · °C
14.5 °C
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 14.5 | 14.5 °C |
| 10 Jul 2026, 13:34 | 16.5 | 16.5 °C |
| 24 Jun 2026, 08:26 | 15.2 | 15.2 °C |
| 12 May 2026, 13:42 | 11.1 | 11.1 °C |
| 7 Apr 2026, 10:14 | 10.1 | 10.1 °C |
| 9 Mar 2026, 12:57 | 10 | 10 °C |
| 2 Feb 2026, 09:49 | 8.3 | 8.3 °C |
| 2 Jan 2026, 11:51 | 5.7 | 5.7 °C |
| 10 Dec 2025, 08:50 | 9.2 | 9.2 °C |
| 4 Nov 2025, 10:17 | 11.2 | 11.2 °C |
| 2 Oct 2025, 10:49 | 11 | 11 °C |
| 4 Sep 2025, 11:40 | 13.3 | 13.3 °C |
| 1 Aug 2025, 09:13 | 13.5 | 13.5 °C |
| 2 Apr 2025, 09:38 | 9.5 | 9.5 °C |
| 4 Mar 2025, 10:08 | 7.4 | 7.4 °C |
| 4 Feb 2025, 10:33 | 7.6 | 7.6 °C |
| 9 Jan 2025, 09:41 | 4.6 | 4.6 °C |
| 5 Dec 2024, 10:32 | 9.3 | 9.3 °C |
| 8 Nov 2024, 11:20 | 10.2 | 10.2 °C |
| 7 Oct 2024, 12:35 | 12.4 | 12.4 °C |
| 2 Sep 2024, 11:38 | 14.3 | 14.3 °C |
| 2 Aug 2024, 12:46 | 15.2 | 15.2 °C |
| 2 Jul 2024, 10:50 | 12.4 | 12.4 °C |
| 12 Jun 2024, 09:27 | 11.1 | 11.1 °C |
| 5 Mar 2024, 12:42 | 8.9 | 8.9 °C |
| 1 Feb 2024, 11:03 | 7.7 | 7.7 °C |
| 3 Jan 2024, 09:40 | 8 | 8 °C |
| 1 Dec 2023, 10:18 | 5.5 | 5.5 °C |
| 6 Nov 2023, 10:13 | 9.1 | 9.1 °C |
| 6 Oct 2023, 10:53 | 12.4 | 12.4 °C |
pH
code 0061
7.33
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 7.33 | 7.33 |
| 10 Jul 2026, 13:34 | 7.48 | 7.48 |
| 24 Jun 2026, 08:26 | 7.53 | 7.53 |
| 12 May 2026, 13:42 | 7.73 | 7.73 |
| 7 Apr 2026, 10:14 | 7.71 | 7.71 |
| 9 Mar 2026, 12:57 | 7.73 | 7.73 |
| 2 Feb 2026, 09:49 | 7.63 | 7.63 |
| 2 Jan 2026, 11:51 | 7.61 | 7.61 |
| 10 Dec 2025, 08:50 | 7.49 | 7.49 |
| 4 Nov 2025, 10:17 | 7.62 | 7.62 |
| 2 Oct 2025, 10:49 | 7.53 | 7.53 |
| 4 Sep 2025, 11:40 | 7.54 | 7.54 |
| 1 Aug 2025, 09:13 | 7.43 | 7.43 |
| 2 Apr 2025, 09:38 | 7.69 | 7.69 |
| 4 Mar 2025, 10:08 | 7.68 | 7.68 |
| 4 Feb 2025, 10:33 | 7.76 | 7.76 |
| 9 Jan 2025, 09:41 | 7.84 | 7.84 |
| 5 Dec 2024, 10:32 | 7.53 | 7.53 |
| 8 Nov 2024, 11:20 | 7.53 | 7.53 |
| 7 Oct 2024, 12:35 | 7.53 | 7.53 |
| 2 Sep 2024, 11:38 | 7.4 | 7.4 |
| 2 Aug 2024, 12:46 | 7.59 | 7.59 |
| 2 Jul 2024, 10:50 | 7.65 | 7.65 |
| 12 Jun 2024, 09:27 | 7.58 | 7.58 |
| 5 Mar 2024, 12:42 | 7.73 | 7.73 |
| 1 Feb 2024, 11:03 | 7.54 | 7.54 |
| 3 Jan 2024, 09:40 | 7.61 | 7.61 |
| 1 Dec 2023, 10:18 | 7.47 | 7.47 |
| 6 Nov 2023, 10:13 | 7.63 | 7.63 |
| 6 Oct 2023, 10:53 | 7.53 | 7.53 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jul 2026, 13:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2026, 08:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 May 2026, 13:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2026, 10:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Mar 2026, 12:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 09:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2026, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Dec 2025, 08:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Nov 2025, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2025, 10:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 11:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2025, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 09:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2025, 10:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2025, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jan 2025, 09:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Dec 2024, 10:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Nov 2024, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Oct 2024, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2024, 11:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Aug 2024, 12:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jul 2024, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jun 2024, 09:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2024, 12:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Feb 2024, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2024, 09:40 | 0.037 | 0.037 mg/l |
| 1 Dec 2023, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2023, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2023, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
11 mg/l
Sampled 3 Aug 2026, 59 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 11 | 11 mg/l |
| 10 Jul 2026, 13:34 | 9.89 | 9.89 mg/l |
| 24 Jun 2026, 08:26 | 9.58 | 9.58 mg/l |
| 12 May 2026, 13:42 | 9.99 | 9.99 mg/l |
| 7 Apr 2026, 10:14 | 11 | 11 mg/l |
| 9 Mar 2026, 12:57 | 9.99 | 9.99 mg/l |
| 2 Feb 2026, 09:49 | 9.88 | 9.88 mg/l |
| 2 Jan 2026, 11:51 | 11 | 11 mg/l |
| 10 Dec 2025, 08:50 | 8.38 | 8.38 mg/l |
| 4 Nov 2025, 10:17 | 9.99 | 9.99 mg/l |
| 2 Oct 2025, 10:49 | 11 | 11 mg/l |
| 4 Sep 2025, 11:40 | 9.99 | 9.99 mg/l |
| 1 Aug 2025, 09:13 | 9.98 | 9.98 mg/l |
| 2 Apr 2025, 09:38 | 9.99 | 9.99 mg/l |
| 4 Mar 2025, 10:08 | 9.99 | 9.99 mg/l |
| 4 Feb 2025, 10:33 | 11 | 11 mg/l |
| 9 Jan 2025, 09:41 | 9.78 | 9.78 mg/l |
| 8 Nov 2024, 11:20 | 9.99 | 9.99 mg/l |
| 7 Oct 2024, 12:35 | 9.59 | 9.59 mg/l |
| 2 Sep 2024, 11:38 | 9.89 | 9.89 mg/l |
| 2 Aug 2024, 12:46 | 9.98 | 9.98 mg/l |
| 2 Jul 2024, 10:50 | 9.78 | 9.78 mg/l |
| 12 Jun 2024, 09:27 | 8.39 | 8.39 mg/l |
| 5 Mar 2024, 12:42 | 9.19 | 9.19 mg/l |
| 1 Feb 2024, 11:03 | 9.98 | 9.98 mg/l |
| 3 Jan 2024, 09:40 | 4.38 | 4.38 mg/l |
| 1 Dec 2023, 10:18 | 9.38 | 9.38 mg/l |
| 6 Nov 2023, 10:13 | 6.79 | 6.79 mg/l |
| 6 Oct 2023, 10:53 | 8.69 | 8.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.031 mg/l
Sampled 3 Aug 2026, 59 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 0.031 | 0.031 mg/l |
| 10 Jul 2026, 13:34 | 0.033 | 0.033 mg/l |
| 24 Jun 2026, 08:26 | 0.039 | 0.039 mg/l |
| 12 May 2026, 13:42 | 0.035 | 0.035 mg/l |
| 7 Apr 2026, 10:14 | 0.035 | 0.035 mg/l |
| 9 Mar 2026, 12:57 | 0.053 | 0.053 mg/l |
| 2 Feb 2026, 09:49 | 0.06 | 0.06 mg/l |
| 2 Jan 2026, 11:51 | 0.063 | 0.063 mg/l |
| 10 Dec 2025, 08:50 | 0.091 | 0.091 mg/l |
| 4 Nov 2025, 10:17 | 0.048 | 0.048 mg/l |
| 2 Oct 2025, 10:49 | 0.044 | 0.044 mg/l |
| 4 Sep 2025, 11:40 | 0.048 | 0.048 mg/l |
| 1 Aug 2025, 09:13 | 0.037 | 0.037 mg/l |
| 2 Apr 2025, 09:38 | 0.034 | 0.034 mg/l |
| 4 Mar 2025, 10:08 | 0.047 | 0.047 mg/l |
| 4 Feb 2025, 10:33 | 0.06 | 0.06 mg/l |
| 9 Jan 2025, 09:41 | 0.063 | 0.063 mg/l |
| 8 Nov 2024, 11:20 | 0.048 | 0.048 mg/l |
| 7 Oct 2024, 12:35 | 0.05 | 0.05 mg/l |
| 2 Sep 2024, 11:38 | 0.036 | 0.036 mg/l |
| 2 Aug 2024, 12:46 | 0.035 | 0.035 mg/l |
| 2 Jul 2024, 10:50 | 0.041 | 0.041 mg/l |
| 12 Jun 2024, 09:27 | 0.042 | 0.042 mg/l |
| 5 Mar 2024, 12:42 | 0.072 | 0.072 mg/l |
| 1 Feb 2024, 11:03 | 0.062 | 0.062 mg/l |
| 3 Jan 2024, 09:40 | 0.085 | 0.085 mg/l |
| 1 Dec 2023, 10:18 | 0.059 | 0.059 mg/l |
| 6 Nov 2023, 10:13 | 0.076 | 0.076 mg/l |
| 6 Oct 2023, 10:53 | 0.064 | 0.064 mg/l |
Turbidity
code 6396 · NTU
below 1 NTU (not detected above this)
Sampled 3 Aug 2026, 59 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | <1 | below 1 NTU (not detected above this) |
| 10 Jul 2026, 13:34 | <1 | below 1 NTU (not detected above this) |
| 24 Jun 2026, 08:26 | <1 | below 1 NTU (not detected above this) |
| 12 May 2026, 13:42 | <1 | below 1 NTU (not detected above this) |
| 7 Apr 2026, 10:14 | <1 | below 1 NTU (not detected above this) |
| 9 Mar 2026, 12:57 | 1.1 | 1.1 NTU |
| 2 Feb 2026, 09:49 | 1.6 | 1.6 NTU |
| 2 Jan 2026, 11:51 | 1.6 | 1.6 NTU |
| 10 Dec 2025, 08:50 | 6.4 | 6.4 NTU |
| 4 Nov 2025, 10:17 | <1 | below 1 NTU (not detected above this) |
| 2 Oct 2025, 10:49 | <1 | below 1 NTU (not detected above this) |
| 1 Aug 2025, 09:13 | <1 | below 1 NTU (not detected above this) |
| 2 Apr 2025, 09:38 | <1 | below 1 NTU (not detected above this) |
| 4 Mar 2025, 10:08 | 2.8 | 2.8 NTU |
| 4 Feb 2025, 10:33 | 2.9 | 2.9 NTU |
| 9 Jan 2025, 09:41 | 4 | 4 NTU |
| 5 Dec 2024, 10:32 | 2.9 | 2.9 NTU |
| 8 Nov 2024, 11:20 | <1 | below 1 NTU (not detected above this) |
| 7 Oct 2024, 12:35 | <1 | below 1 NTU (not detected above this) |
| 2 Sep 2024, 11:38 | <1 | below 1 NTU (not detected above this) |
| 2 Aug 2024, 12:46 | 1.4 | 1.4 NTU |
| 2 Jul 2024, 10:50 | <1 | below 1 NTU (not detected above this) |
| 12 Jun 2024, 09:27 | <1 | below 1 NTU (not detected above this) |
| 5 Mar 2024, 12:42 | 2.9 | 2.9 NTU |
| 1 Feb 2024, 11:03 | 2.8 | 2.8 NTU |
| 3 Jan 2024, 09:40 | 52 | 52 NTU |
| 1 Dec 2023, 10:18 | 1.9 | 1.9 NTU |
| 6 Nov 2023, 10:13 | 3.8 | 3.8 NTU |
| 6 Oct 2023, 10:53 | 1.2 | 1.2 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
762 µS/cm
Sampled 3 Aug 2026, 59 days ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Aug 2026, 11:20 | 762 | 762 µS/cm |
| 10 Jul 2026, 13:34 | 768 | 768 µS/cm |
| 24 Jun 2026, 08:26 | 750 | 750 µS/cm |
| 12 May 2026, 13:42 | 748 | 748 µS/cm |
| 7 Apr 2026, 10:14 | 761 | 761 µS/cm |
| 9 Mar 2026, 12:57 | 752 | 752 µS/cm |
| 2 Feb 2026, 09:49 | 750 | 750 µS/cm |
| 2 Jan 2026, 11:51 | 772 | 772 µS/cm |
| 10 Dec 2025, 08:50 | 668 | 668 µS/cm |
| 4 Nov 2025, 10:17 | 769 | 769 µS/cm |
| 2 Oct 2025, 10:49 | 769 | 769 µS/cm |
| 4 Sep 2025, 11:40 | 754 | 754 µS/cm |
| 1 Aug 2025, 09:13 | 753 | 753 µS/cm |
| 2 Apr 2025, 09:38 | 749 | 749 µS/cm |
| 4 Mar 2025, 10:08 | 742 | 742 µS/cm |
| 4 Feb 2025, 10:33 | 745 | 745 µS/cm |
| 9 Jan 2025, 09:41 | 722 | 722 µS/cm |
| 5 Dec 2024, 10:32 | 747 | 747 µS/cm |
| 8 Nov 2024, 11:20 | 767 | 767 µS/cm |
| 7 Oct 2024, 12:35 | 754 | 754 µS/cm |
| 2 Sep 2024, 11:38 | 767 | 767 µS/cm |
| 2 Aug 2024, 12:46 | 750 | 750 µS/cm |
| 2 Jul 2024, 10:50 | 756 | 756 µS/cm |
| 12 Jun 2024, 09:27 | 722 | 722 µS/cm |
| 5 Mar 2024, 12:42 | 724 | 724 µS/cm |
| 1 Feb 2024, 11:03 | 759 | 759 µS/cm |
| 3 Jan 2024, 09:40 | 456 | 456 µS/cm |
| 1 Dec 2023, 10:18 | 743 | 743 µS/cm |
| 6 Nov 2023, 10:13 | 668 | 668 µS/cm |
| 6 Oct 2023, 10:53 | 727 | 727 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 30 | Oct 2023 – Aug 2026 | 74.7% 3 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – Aug 2026 | 7.6 mg/l 3 Aug 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – Aug 2026 | 14.5 °C 3 Aug 2026 |
| pH 0061 | River water | 30 | Oct 2023 – Aug 2026 | 7.33 3 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Aug 2026 | below 0.03 mg/l 3 Aug 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – Aug 2026 | 11 mg/l 3 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Aug 2026 | 0.031 mg/l 3 Aug 2026 |
| Turbidity 6396 | River water | 29 | Oct 2023 – Aug 2026 | below 1 NTU 3 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – Aug 2026 | 762 µS/cm 3 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Aug 2026 | 270 mg/l 3 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Aug 2026 | below 0.00017 mg/l 3 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 28 | Oct 2023 – Aug 2026 | 1.8 µg/l 3 Aug 2026 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Aug 2026 | 0.013 mg/l 3 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – Aug 2026 | 11 mg/l 3 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 30 | Oct 2023 – Aug 2026 | below 3 mg/l 3 Aug 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.