River Lark A134 Sicklesmere Road Bridge
EA name: R.LARK A134 SICKLESMERE RD.BR.
Environment Agency sampling point AN-37M04 · 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
- 14 Sep 2026, 11:3417 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 5 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 587700, 260700As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Lark
- River, by the map
- River LarkPlaced on the river its name gives, 52 m from the line.
- Next gauge downstream
- Fornham St Martin On the River Lark · 8.4 km along the riverBeside Sicklesmere: too close to say above or below.
- Why it was sampled
- Monitoring (national agency policy) (34 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
66.7%
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 66.7 | 66.7% |
| 6 Aug 2026, 12:35 | 69.4 | 69.4% |
| 14 Jul 2026, 10:25 | 62.9 | 62.9% |
| 8 Jun 2026, 12:52 | 61.2 | 61.2% |
| 1 May 2026, 12:33 | 90.3 | 90.3% |
| 10 Apr 2026, 12:04 | 99 | 99% |
| 6 Mar 2026, 15:01 | 98.6 | 98.6% |
| 3 Feb 2026, 10:50 | 95.1 | 95.1% |
| 6 Jan 2026, 14:19 | 92.7 | 92.7% |
| 4 Dec 2025, 10:27 | 85.3 | 85.3% |
| 5 Nov 2025, 09:54 | 51.2 | 51.2% |
| 13 Oct 2025, 13:46 | 61.1 | 61.1% |
| 22 Sep 2025, 14:19 | 64 | 64% |
| 1 Aug 2025, 11:35 | 15.1 | 15.1% |
| 4 Jul 2025, 11:21 | 75.1 | 75.1% |
| 3 Jun 2025, 14:49 | 70 | 70% |
| 9 May 2025, 10:47 | 79.8 | 79.8% |
| 3 Apr 2025, 12:59 | 102.7 | 102.7% |
| 3 Mar 2025, 12:03 | 98.3 | 98.3% |
| 10 Feb 2025, 14:09 | 95.5 | 95.5% |
| 9 Jan 2025, 11:00 | 97.1 | 97.1% |
| 2 Dec 2024, 13:23 | 86.4 | 86.4% |
| 4 Nov 2024, 12:51 | 71.2 | 71.2% |
| 11 Oct 2024, 13:54 | 86.2 | 86.2% |
| 3 Sep 2024, 12:26 | 70.1 | 70.1% |
| 12 Aug 2024, 12:20 | 75.6 | 75.6% |
| 1 Jul 2024, 11:22 | 76.8 | 76.8% |
| 3 Jun 2024, 11:27 | 91.7 | 91.7% |
| 4 Mar 2024, 12:05 | 98.2 | 98.2% |
| 4 Jan 2024, 12:33 | 92 | 92% |
| 7 Dec 2023, 13:22 | 93.9 | 93.9% |
| 1 Nov 2023, 10:54 | 89.4 | 89.4% |
| 5 Oct 2023, 12:15 | 66.4 | 66.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.57 mg/l
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 6.57 | 6.57 mg/l |
| 6 Aug 2026, 12:35 | 6.82 | 6.82 mg/l |
| 14 Jul 2026, 10:25 | 6.1 | 6.1 mg/l |
| 8 Jun 2026, 12:52 | 6.25 | 6.25 mg/l |
| 1 May 2026, 12:33 | 9.89 | 9.89 mg/l |
| 10 Apr 2026, 12:04 | 11.3 | 11.3 mg/l |
| 6 Mar 2026, 15:01 | 11.5 | 11.5 mg/l |
| 3 Feb 2026, 10:50 | 11.9 | 11.9 mg/l |
| 6 Jan 2026, 14:19 | 13.4 | 13.4 mg/l |
| 4 Dec 2025, 10:27 | 10.3 | 10.3 mg/l |
| 5 Nov 2025, 09:54 | 5.49 | 5.49 mg/l |
| 13 Oct 2025, 13:46 | 6.5 | 6.5 mg/l |
| 22 Sep 2025, 14:19 | 6.93 | 6.93 mg/l |
| 1 Aug 2025, 11:35 | 1.52 | 1.52 mg/l |
| 4 Jul 2025, 11:21 | 7.59 | 7.59 mg/l |
| 3 Jun 2025, 14:49 | 7.29 | 7.29 mg/l |
| 9 May 2025, 10:47 | 9.01 | 9.01 mg/l |
| 3 Apr 2025, 12:59 | 11.7 | 11.7 mg/l |
| 3 Mar 2025, 12:03 | 12.6 | 12.6 mg/l |
| 10 Feb 2025, 14:09 | 12.1 | 12.1 mg/l |
| 9 Jan 2025, 11:00 | 12.7 | 12.7 mg/l |
| 2 Dec 2024, 13:23 | 9.97 | 9.97 mg/l |
| 4 Nov 2024, 12:51 | 7.82 | 7.82 mg/l |
| 11 Oct 2024, 13:54 | 9.92 | 9.92 mg/l |
| 3 Sep 2024, 12:26 | 6.92 | 6.92 mg/l |
| 12 Aug 2024, 12:20 | 7.23 | 7.23 mg/l |
| 1 Jul 2024, 11:22 | 7.93 | 7.93 mg/l |
| 3 Jun 2024, 11:27 | 9.55 | 9.55 mg/l |
| 4 Mar 2024, 12:05 | 12.1 | 12.1 mg/l |
| 4 Jan 2024, 12:33 | 10.9 | 10.9 mg/l |
| 7 Dec 2023, 13:22 | 11.7 | 11.7 mg/l |
| 1 Nov 2023, 10:54 | 9.72 | 9.72 mg/l |
| 5 Oct 2023, 12:15 | 6.95 | 6.95 mg/l |
Water temperature
code 0076 · °C
16 °C
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 16 | 16 °C |
| 6 Aug 2026, 12:35 | 16.1 | 16.1 °C |
| 14 Jul 2026, 10:25 | 16.7 | 16.7 °C |
| 8 Jun 2026, 12:52 | 14.3 | 14.3 °C |
| 1 May 2026, 12:33 | 11.2 | 11.2 °C |
| 10 Apr 2026, 12:04 | 9.5 | 9.5 °C |
| 6 Mar 2026, 15:01 | 8.4 | 8.4 °C |
| 3 Feb 2026, 10:50 | 5.7 | 5.7 °C |
| 6 Jan 2026, 14:19 | 0.3 | 0.3 °C |
| 4 Dec 2025, 10:27 | 7 | 7 °C |
| 5 Nov 2025, 09:54 | 12.1 | 12.1 °C |
| 13 Oct 2025, 13:46 | 12.5 | 12.5 °C |
| 22 Sep 2025, 14:19 | 11.7 | 11.7 °C |
| 1 Aug 2025, 11:35 | 15.1 | 15.1 °C |
| 4 Jul 2025, 11:21 | 14.8 | 14.8 °C |
| 3 Jun 2025, 14:49 | 13.4 | 13.4 °C |
| 9 May 2025, 10:47 | 9.9 | 9.9 °C |
| 3 Apr 2025, 12:59 | 9.6 | 9.6 °C |
| 3 Mar 2025, 12:03 | 4.7 | 4.7 °C |
| 10 Feb 2025, 14:09 | 5.1 | 5.1 °C |
| 9 Jan 2025, 11:00 | 3.9 | 3.9 °C |
| 2 Dec 2024, 13:23 | 9 | 9 °C |
| 4 Nov 2024, 12:51 | 11.1 | 11.1 °C |
| 11 Oct 2024, 13:54 | 9.1 | 9.1 °C |
| 3 Sep 2024, 12:26 | 15.9 | 15.9 °C |
| 12 Aug 2024, 12:20 | 17.4 | 17.4 °C |
| 1 Jul 2024, 11:22 | 13.8 | 13.8 °C |
| 3 Jun 2024, 11:27 | 13.4 | 13.4 °C |
| 4 Mar 2024, 12:05 | 6.4 | 6.4 °C |
| 1 Feb 2024, 13:25 | 6.4 | 6.4 °C |
| 4 Jan 2024, 12:33 | 7.9 | 7.9 °C |
| 7 Dec 2023, 13:22 | 5.9 | 5.9 °C |
| 1 Nov 2023, 10:54 | 11.5 | 11.5 °C |
| 5 Oct 2023, 12:15 | 13.2 | 13.2 °C |
pH
code 0061
7.67
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 7.67 | 7.67 |
| 6 Aug 2026, 12:35 | 7.78 | 7.78 |
| 14 Jul 2026, 10:25 | 7.77 | 7.77 |
| 8 Jun 2026, 12:52 | 7.74 | 7.74 |
| 1 May 2026, 12:33 | 7.91 | 7.91 |
| 10 Apr 2026, 12:04 | 8.12 | 8.12 |
| 6 Mar 2026, 15:01 | 8.25 | 8.25 |
| 3 Feb 2026, 10:50 | 8.22 | 8.22 |
| 6 Jan 2026, 14:19 | 8.02 | 8.02 |
| 4 Dec 2025, 10:27 | 7.81 | 7.81 |
| 5 Nov 2025, 09:54 | 7.62 | 7.62 |
| 13 Oct 2025, 13:46 | 7.65 | 7.65 |
| 22 Sep 2025, 14:19 | 7.73 | 7.73 |
| 1 Aug 2025, 11:35 | 7.73 | 7.73 |
| 4 Jul 2025, 11:21 | 7.68 | 7.68 |
| 3 Jun 2025, 14:49 | 7.8 | 7.8 |
| 9 May 2025, 10:47 | 8.41 | 8.41 |
| 3 Apr 2025, 12:59 | 8.17 | 8.17 |
| 3 Mar 2025, 12:03 | 8.33 | 8.33 |
| 10 Feb 2025, 14:09 | 8.13 | 8.13 |
| 9 Jan 2025, 11:00 | 8.13 | 8.13 |
| 2 Dec 2024, 13:23 | 8.09 | 8.09 |
| 4 Nov 2024, 12:51 | 7.76 | 7.76 |
| 11 Oct 2024, 13:54 | 7.98 | 7.98 |
| 3 Sep 2024, 12:26 | 7.61 | 7.61 |
| 12 Aug 2024, 12:20 | 7.82 | 7.82 |
| 1 Jul 2024, 11:22 | 7.9 | 7.9 |
| 4 Mar 2024, 12:05 | 8.19 | 8.19 |
| 1 Feb 2024, 13:25 | 8.2 | 8.2 |
| 4 Jan 2024, 12:33 | 8.03 | 8.03 |
| 7 Dec 2023, 13:22 | 8.09 | 8.09 |
| 1 Nov 2023, 10:54 | 8.17 | 8.17 |
| 5 Oct 2023, 12:15 | 7.69 | 7.69 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.037 mg/l
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 0.037 | 0.037 mg/l |
| 6 Aug 2026, 12:35 | 0.043 | 0.043 mg/l |
| 14 Jul 2026, 10:25 | 0.044 | 0.044 mg/l |
| 8 Jun 2026, 12:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 May 2026, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2026, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2026, 15:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2026, 10:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2026, 14:19 | 0.078 | 0.078 mg/l |
| 4 Dec 2025, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2025, 09:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Oct 2025, 13:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Sep 2025, 14:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2025, 11:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jul 2025, 11:21 | 0.041 | 0.041 mg/l |
| 3 Jun 2025, 14:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 May 2025, 10:47 | 0.035 | 0.035 mg/l |
| 3 Apr 2025, 12:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 12:03 | 0.064 | 0.064 mg/l |
| 10 Feb 2025, 14:09 | 0.11 | 0.11 mg/l |
| 9 Jan 2025, 11:00 | 0.077 | 0.077 mg/l |
| 2 Dec 2024, 13:23 | 0.035 | 0.035 mg/l |
| 4 Nov 2024, 12:51 | 0.16 | 0.16 mg/l |
| 11 Oct 2024, 13:54 | 0.12 | 0.12 mg/l |
| 3 Sep 2024, 12:26 | 0.039 | 0.039 mg/l |
| 12 Aug 2024, 12:20 | 0.034 | 0.034 mg/l |
| 1 Jul 2024, 11:22 | 0.044 | 0.044 mg/l |
| 3 Jun 2024, 11:27 | 0.037 | 0.037 mg/l |
| 4 Mar 2024, 12:05 | 0.093 | 0.093 mg/l |
| 1 Feb 2024, 13:25 | 0.085 | 0.085 mg/l |
| 4 Jan 2024, 12:33 | 0.032 | 0.032 mg/l |
| 7 Dec 2023, 13:22 | 0.068 | 0.068 mg/l |
| 1 Nov 2023, 10:54 | 0.067 | 0.067 mg/l |
| 5 Oct 2023, 12:15 | 0.059 | 0.059 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.94 mg/l
Sampled 14 Sep 2026, 17 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 9.94 | 9.94 mg/l |
| 6 Aug 2026, 12:35 | 11 | 11 mg/l |
| 14 Jul 2026, 10:25 | 9.95 | 9.95 mg/l |
| 8 Jun 2026, 12:52 | 6.42 | 6.42 mg/l |
| 1 May 2026, 12:33 | 12 | 12 mg/l |
| 10 Apr 2026, 12:04 | 12 | 12 mg/l |
| 6 Mar 2026, 15:01 | 13 | 13 mg/l |
| 3 Feb 2026, 10:50 | 16 | 16 mg/l |
| 6 Jan 2026, 14:19 | 13 | 13 mg/l |
| 4 Dec 2025, 10:27 | 16 | 16 mg/l |
| 5 Nov 2025, 09:54 | 8.32 | 8.32 mg/l |
| 13 Oct 2025, 13:46 | 9 | 9 mg/l |
| 22 Sep 2025, 14:19 | 8.67 | 8.67 mg/l |
| 1 Aug 2025, 11:35 | 9.08 | 9.08 mg/l |
| 4 Jul 2025, 11:21 | 9.97 | 9.97 mg/l |
| 3 Jun 2025, 14:49 | 4.93 | 4.93 mg/l |
| 9 May 2025, 10:47 | 7.56 | 7.56 mg/l |
| 3 Apr 2025, 12:59 | 9.98 | 9.98 mg/l |
| 3 Mar 2025, 12:03 | 11 | 11 mg/l |
| 10 Feb 2025, 14:09 | 9.94 | 9.94 mg/l |
| 9 Jan 2025, 11:00 | 12 | 12 mg/l |
| 4 Nov 2024, 12:51 | 5.73 | 5.73 mg/l |
| 11 Oct 2024, 13:54 | 9.16 | 9.16 mg/l |
| 3 Sep 2024, 12:26 | 5.67 | 5.67 mg/l |
| 12 Aug 2024, 12:20 | 7.07 | 7.07 mg/l |
| 1 Jul 2024, 11:22 | 7.27 | 7.27 mg/l |
| 3 Jun 2024, 11:27 | 8.63 | 8.63 mg/l |
| 4 Mar 2024, 12:05 | 9.77 | 9.77 mg/l |
| 1 Feb 2024, 13:25 | 9.93 | 9.93 mg/l |
| 4 Jan 2024, 12:33 | 9.88 | 9.88 mg/l |
| 7 Dec 2023, 13:22 | 11 | 11 mg/l |
| 1 Nov 2023, 10:54 | 12 | 12 mg/l |
| 5 Oct 2023, 12:15 | 5.63 | 5.63 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.067 mg/l
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 0.067 | 0.067 mg/l |
| 6 Aug 2026, 12:35 | 0.11 | 0.11 mg/l |
| 14 Jul 2026, 10:25 | 0.11 | 0.11 mg/l |
| 8 Jun 2026, 12:52 | 0.099 | 0.099 mg/l |
| 1 May 2026, 12:33 | 0.054 | 0.054 mg/l |
| 10 Apr 2026, 12:04 | 0.045 | 0.045 mg/l |
| 6 Mar 2026, 15:01 | 0.045 | 0.045 mg/l |
| 3 Feb 2026, 10:50 | 0.043 | 0.043 mg/l |
| 6 Jan 2026, 14:19 | 0.073 | 0.073 mg/l |
| 4 Dec 2025, 10:27 | 0.061 | 0.061 mg/l |
| 5 Nov 2025, 09:54 | 0.059 | 0.059 mg/l |
| 13 Oct 2025, 13:46 | 0.05 | 0.05 mg/l |
| 22 Sep 2025, 14:19 | 0.077 | 0.077 mg/l |
| 1 Aug 2025, 11:35 | 0.062 | 0.062 mg/l |
| 4 Jul 2025, 11:21 | 0.072 | 0.072 mg/l |
| 3 Jun 2025, 14:49 | 0.093 | 0.093 mg/l |
| 9 May 2025, 10:47 | 0.064 | 0.064 mg/l |
| 3 Apr 2025, 12:59 | 0.059 | 0.059 mg/l |
| 3 Mar 2025, 12:03 | 0.043 | 0.043 mg/l |
| 10 Feb 2025, 14:09 | 0.052 | 0.052 mg/l |
| 9 Jan 2025, 11:00 | 0.044 | 0.044 mg/l |
| 2 Dec 2024, 13:23 | 0.058 | 0.058 mg/l |
| 4 Nov 2024, 12:51 | 0.14 | 0.14 mg/l |
| 11 Oct 2024, 13:54 | 0.14 | 0.14 mg/l |
| 3 Sep 2024, 12:26 | 0.094 | 0.094 mg/l |
| 12 Aug 2024, 12:20 | 0.09 | 0.09 mg/l |
| 1 Jul 2024, 11:22 | 0.12 | 0.12 mg/l |
| 3 Jun 2024, 11:27 | 0.13 | 0.13 mg/l |
| 4 Mar 2024, 12:05 | 0.062 | 0.062 mg/l |
| 1 Feb 2024, 13:25 | 0.099 | 0.099 mg/l |
| 4 Jan 2024, 12:33 | 0.055 | 0.055 mg/l |
| 7 Dec 2023, 13:22 | 0.063 | 0.063 mg/l |
| 1 Nov 2023, 10:54 | 0.089 | 0.089 mg/l |
| 5 Oct 2023, 12:15 | 0.1 | 0.1 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
836 µS/cm
Sampled 14 Sep 2026, 17 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 11:34 | 836 | 836 µS/cm |
| 6 Aug 2026, 12:35 | 885 | 885 µS/cm |
| 14 Jul 2026, 10:25 | 869 | 869 µS/cm |
| 8 Jun 2026, 12:52 | 814 | 814 µS/cm |
| 1 May 2026, 12:33 | 854 | 854 µS/cm |
| 10 Apr 2026, 12:04 | 805 | 805 µS/cm |
| 6 Mar 2026, 15:01 | 781 | 781 µS/cm |
| 3 Feb 2026, 10:50 | 729 | 729 µS/cm |
| 6 Jan 2026, 14:19 | 858 | 858 µS/cm |
| 4 Dec 2025, 10:27 | 834 | 834 µS/cm |
| 5 Nov 2025, 09:54 | 923 | 923 µS/cm |
| 13 Oct 2025, 13:46 | 881 | 881 µS/cm |
| 22 Sep 2025, 14:19 | 826 | 826 µS/cm |
| 1 Aug 2025, 11:35 | 834 | 834 µS/cm |
| 4 Jul 2025, 11:21 | 862 | 862 µS/cm |
| 3 Jun 2025, 14:49 | 794 | 794 µS/cm |
| 9 May 2025, 10:47 | 809 | 809 µS/cm |
| 3 Apr 2025, 12:59 | 797 | 797 µS/cm |
| 3 Mar 2025, 12:03 | 751 | 751 µS/cm |
| 10 Feb 2025, 14:09 | 806 | 806 µS/cm |
| 9 Jan 2025, 11:00 | 735 | 735 µS/cm |
| 2 Dec 2024, 13:23 | 759 | 759 µS/cm |
| 4 Nov 2024, 12:51 | 844 | 844 µS/cm |
| 11 Oct 2024, 13:54 | 786 | 786 µS/cm |
| 3 Sep 2024, 12:26 | 804 | 804 µS/cm |
| 12 Aug 2024, 12:20 | 843 | 843 µS/cm |
| 1 Jul 2024, 11:22 | 828 | 828 µS/cm |
| 3 Jun 2024, 11:27 | 799 | 799 µS/cm |
| 4 Mar 2024, 12:05 | 740 | 740 µS/cm |
| 1 Feb 2024, 13:25 | 799 | 799 µS/cm |
| 4 Jan 2024, 12:33 | 692 | 692 µS/cm |
| 7 Dec 2023, 13:22 | 771 | 771 µS/cm |
| 1 Nov 2023, 10:54 | 734 | 734 µS/cm |
| 5 Oct 2023, 12:15 | 850 | 850 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Sep 2026 | 66.7% 14 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Oct 2023 – Sep 2026 | 6.57 mg/l 14 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 16 °C 14 Sep 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Sep 2026 | 7.67 14 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 34 | Oct 2023 – Sep 2026 | 0.037 mg/l 14 Sep 2026 |
| Nitrate as N 0117 | River water | 33 | Oct 2023 – Sep 2026 | 9.94 mg/l 14 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 34 | Oct 2023 – Sep 2026 | 0.067 mg/l 14 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 836 µS/cm 14 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 34 | Oct 2023 – Sep 2026 | 240 mg/l 14 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 33 | Oct 2023 – Sep 2026 | 0.0005 mg/l 14 Sep 2026 |
| Nitrite as N 0118 | River water | 33 | Oct 2023 – Sep 2026 | 0.06 mg/l 14 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Sep 2026 | 10 mg/l 14 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.