River Lark Tollgate Road Bridge
EA name: R.LARK TOLLGATE RD.BR.
Environment Agency sampling point AN-37M07 · 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
- 7 Sep 2026, 13:1824 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 36 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 585200, 266100As 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, 40 m from the line.
- Next gauge downstream
- Fornham St Martin On the River Lark · 1.3 km along the river
- Nearest gauge upstream
- Sicklesmere On the River Lark · 7.0 km along the river
- Why it was sampled
- Monitoring (national agency policy) (34 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.2%
Sampled 7 Sep 2026, 24 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 87.2 | 87.2% |
| 6 Aug 2026, 14:16 | 104.9 | 104.9% |
| 7 Jul 2026, 10:51 | 86.9 | 86.9% |
| 8 Jun 2026, 13:53 | 72.6 | 72.6% |
| 11 May 2026, 13:56 | 122.3 | 122.3% |
| 10 Apr 2026, 13:43 | 150 | 150% |
| 2 Mar 2026, 10:51 | 103.4 | 103.4% |
| 3 Feb 2026, 12:39 | 92.5 | 92.5% |
| 5 Jan 2026, 12:45 | 90.9 | 90.9% |
| 4 Dec 2025, 12:28 | 84.1 | 84.1% |
| 6 Nov 2025, 13:47 | 62.2 | 62.2% |
| 13 Oct 2025, 14:54 | 85.4 | 85.4% |
| 22 Sep 2025, 15:21 | 98.1 | 98.1% |
| 12 Aug 2025, 13:10 | 131.6 | 131.6% |
| 4 Jul 2025, 13:06 | 128.2 | 128.2% |
| 3 Jun 2025, 15:45 | 86.2 | 86.2% |
| 9 May 2025, 12:08 | 99.2 | 99.2% |
| 3 Apr 2025, 14:56 | 148.5 | 148.5% |
| 3 Mar 2025, 14:04 | 99 | 99% |
| 10 Feb 2025, 14:38 | 92.1 | 92.1% |
| 20 Jan 2025, 11:13 | 91.4 | 91.4% |
| 3 Dec 2024, 14:05 | 81.8 | 81.8% |
| 18 Nov 2024, 11:12 | 70.2 | 70.2% |
| 18 Oct 2024, 11:16 | 81.2 | 81.2% |
| 16 Sep 2024, 13:00 | 97.2 | 97.2% |
| 22 Aug 2024, 13:38 | 103.5 | 103.5% |
| 15 Jul 2024, 10:28 | 83.4 | 83.4% |
| 18 Jun 2024, 11:25 | 101.2 | 101.2% |
| 16 May 2024, 15:28 | 80.9 | 80.9% |
| 15 Apr 2024, 11:52 | 92.9 | 92.9% |
| 18 Mar 2024, 10:42 | 108.1 | 108.1% |
| 19 Feb 2024, 10:50 | 87.8 | 87.8% |
| 17 Jan 2024, 14:03 | 86.8 | 86.8% |
| 1 Dec 2023, 11:08 | 80.9 | 80.9% |
| 16 Nov 2023, 12:19 | 90.4 | 90.4% |
| 16 Oct 2023, 11:02 | 85.7 | 85.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.34 mg/l
Sampled 7 Sep 2026, 24 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 8.34 | 8.34 mg/l |
| 6 Aug 2026, 14:16 | 10.3 | 10.3 mg/l |
| 7 Jul 2026, 10:51 | 8.39 | 8.39 mg/l |
| 8 Jun 2026, 13:53 | 7.33 | 7.33 mg/l |
| 11 May 2026, 13:56 | 13.3 | 13.3 mg/l |
| 10 Apr 2026, 13:43 | 16.2 | 16.2 mg/l |
| 2 Mar 2026, 10:51 | 11.8 | 11.8 mg/l |
| 3 Feb 2026, 12:39 | 11.4 | 11.4 mg/l |
| 5 Jan 2026, 12:45 | 12.2 | 12.2 mg/l |
| 4 Dec 2025, 12:28 | 9.9 | 9.9 mg/l |
| 6 Nov 2025, 13:47 | 6.44 | 6.44 mg/l |
| 13 Oct 2025, 14:54 | 8.94 | 8.94 mg/l |
| 22 Sep 2025, 15:21 | 10.3 | 10.3 mg/l |
| 12 Aug 2025, 13:10 | 12.1 | 12.1 mg/l |
| 4 Jul 2025, 13:06 | 12.6 | 12.6 mg/l |
| 3 Jun 2025, 15:45 | 8.76 | 8.76 mg/l |
| 9 May 2025, 12:08 | 10.6 | 10.6 mg/l |
| 3 Apr 2025, 14:56 | 15.7 | 15.7 mg/l |
| 3 Mar 2025, 14:04 | 12.2 | 12.2 mg/l |
| 10 Feb 2025, 14:38 | 11.3 | 11.3 mg/l |
| 20 Jan 2025, 11:13 | 11.2 | 11.2 mg/l |
| 3 Dec 2024, 14:05 | 9.6 | 9.6 mg/l |
| 18 Nov 2024, 11:12 | 8.04 | 8.04 mg/l |
| 18 Oct 2024, 11:16 | 8.71 | 8.71 mg/l |
| 16 Sep 2024, 13:00 | 9.67 | 9.67 mg/l |
| 22 Aug 2024, 13:38 | 10.3 | 10.3 mg/l |
| 15 Jul 2024, 10:28 | 8.55 | 8.55 mg/l |
| 18 Jun 2024, 11:25 | 10.2 | 10.2 mg/l |
| 16 May 2024, 15:28 | 8.3 | 8.3 mg/l |
| 15 Apr 2024, 11:52 | 10.4 | 10.4 mg/l |
| 18 Mar 2024, 10:42 | 12.1 | 12.1 mg/l |
| 19 Feb 2024, 10:50 | 10.1 | 10.1 mg/l |
| 17 Jan 2024, 14:03 | 11 | 11 mg/l |
| 1 Dec 2023, 11:08 | 10.3 | 10.3 mg/l |
| 16 Nov 2023, 12:19 | 10.5 | 10.5 mg/l |
| 16 Oct 2023, 11:02 | 9.77 | 9.77 mg/l |
Water temperature
code 0076 · °C
17.4 °C
Sampled 7 Sep 2026, 24 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 17.4 | 17.4 °C |
| 6 Aug 2026, 14:16 | 16.1 | 16.1 °C |
| 7 Jul 2026, 10:51 | 16.9 | 16.9 °C |
| 8 Jun 2026, 13:53 | 14.8 | 14.8 °C |
| 11 May 2026, 13:56 | 11.5 | 11.5 °C |
| 10 Apr 2026, 13:43 | 11.8 | 11.8 °C |
| 2 Mar 2026, 10:51 | 9.5 | 9.5 °C |
| 3 Feb 2026, 12:39 | 6.3 | 6.3 °C |
| 5 Jan 2026, 12:45 | 3 | 3 °C |
| 4 Dec 2025, 12:28 | 8.2 | 8.2 °C |
| 6 Nov 2025, 13:47 | 13.7 | 13.7 °C |
| 13 Oct 2025, 14:54 | 13.2 | 13.2 °C |
| 22 Sep 2025, 15:21 | 12.9 | 12.9 °C |
| 12 Aug 2025, 13:10 | 19.2 | 19.2 °C |
| 4 Jul 2025, 13:06 | 16.1 | 16.1 °C |
| 3 Jun 2025, 15:45 | 14.5 | 14.5 °C |
| 9 May 2025, 12:08 | 12.4 | 12.4 °C |
| 3 Apr 2025, 14:56 | 12.8 | 12.8 °C |
| 3 Mar 2025, 14:04 | 6.5 | 6.5 °C |
| 10 Feb 2025, 14:38 | 6.5 | 6.5 °C |
| 20 Jan 2025, 11:13 | 6.5 | 6.5 °C |
| 3 Dec 2024, 14:05 | 8.3 | 8.3 °C |
| 18 Nov 2024, 11:12 | 9.3 | 9.3 °C |
| 18 Oct 2024, 11:16 | 12.1 | 12.1 °C |
| 16 Sep 2024, 13:00 | 15.5 | 15.5 °C |
| 22 Aug 2024, 13:38 | 15.3 | 15.3 °C |
| 15 Jul 2024, 10:28 | 14.1 | 14.1 °C |
| 18 Jun 2024, 11:25 | 14.8 | 14.8 °C |
| 16 May 2024, 15:28 | 14.1 | 14.1 °C |
| 15 Apr 2024, 11:52 | 10.1 | 10.1 °C |
| 18 Mar 2024, 10:42 | 10.4 | 10.4 °C |
| 19 Feb 2024, 10:50 | 9.2 | 9.2 °C |
| 17 Jan 2024, 14:03 | 5.4 | 5.4 °C |
| 1 Dec 2023, 11:08 | 5 | 5 °C |
| 16 Nov 2023, 12:19 | 8.7 | 8.7 °C |
| 16 Oct 2023, 11:02 | 9.5 | 9.5 °C |
pH
code 0061
7.62
Sampled 7 Sep 2026, 24 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 7.62 | 7.62 |
| 6 Aug 2026, 14:16 | 7.85 | 7.85 |
| 7 Jul 2026, 10:51 | 7.66 | 7.66 |
| 8 Jun 2026, 13:53 | 7.41 | 7.41 |
| 11 May 2026, 13:56 | 7.77 | 7.77 |
| 10 Apr 2026, 13:43 | 8 | 8 |
| 2 Mar 2026, 10:51 | 7.96 | 7.96 |
| 3 Feb 2026, 12:39 | 8.03 | 8.03 |
| 5 Jan 2026, 12:45 | 7.69 | 7.69 |
| 4 Dec 2025, 12:28 | 7.55 | 7.55 |
| 6 Nov 2025, 13:47 | 7.53 | 7.53 |
| 13 Oct 2025, 14:54 | 7.73 | 7.73 |
| 22 Sep 2025, 15:21 | 7.82 | 7.82 |
| 12 Aug 2025, 13:10 | 7.88 | 7.88 |
| 4 Jul 2025, 13:06 | 7.74 | 7.74 |
| 3 Jun 2025, 15:45 | 7.63 | 7.63 |
| 9 May 2025, 12:08 | 8.39 | 8.39 |
| 3 Apr 2025, 14:56 | 8.07 | 8.07 |
| 3 Mar 2025, 14:04 | 7.88 | 7.88 |
| 10 Feb 2025, 14:38 | 7.78 | 7.78 |
| 20 Jan 2025, 11:13 | 7.75 | 7.75 |
| 3 Dec 2024, 14:05 | 7.8 | 7.8 |
| 18 Nov 2024, 11:12 | 7.6 | 7.6 |
| 18 Oct 2024, 11:16 | 7.6 | 7.6 |
| 16 Sep 2024, 13:00 | 7.7 | 7.7 |
| 22 Aug 2024, 13:38 | 7.62 | 7.62 |
| 15 Jul 2024, 10:28 | 7.66 | 7.66 |
| 18 Jun 2024, 11:25 | 7.57 | 7.57 |
| 16 May 2024, 15:28 | 7.67 | 7.67 |
| 15 Apr 2024, 11:52 | 7.56 | 7.56 |
| 18 Mar 2024, 10:42 | 7.78 | 7.78 |
| 19 Feb 2024, 10:50 | 7.9 | 7.9 |
| 17 Jan 2024, 14:03 | 7.66 | 7.66 |
| 1 Dec 2023, 11:08 | 7.72 | 7.72 |
| 16 Nov 2023, 12:19 | 7.86 | 7.86 |
| 16 Oct 2023, 11:02 | 7.62 | 7.62 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.07 mg/l
Sampled 7 Sep 2026, 24 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 0.07 | 0.07 mg/l |
| 6 Aug 2026, 14:16 | 0.078 | 0.078 mg/l |
| 7 Jul 2026, 10:51 | 0.14 | 0.14 mg/l |
| 8 Jun 2026, 13:53 | 0.21 | 0.21 mg/l |
| 11 May 2026, 13:56 | 0.07 | 0.07 mg/l |
| 10 Apr 2026, 13:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 10:51 | 0.041 | 0.041 mg/l |
| 3 Feb 2026, 12:39 | 0.051 | 0.051 mg/l |
| 5 Jan 2026, 12:45 | 0.16 | 0.16 mg/l |
| 4 Dec 2025, 12:28 | 0.11 | 0.11 mg/l |
| 6 Nov 2025, 13:47 | 0.13 | 0.13 mg/l |
| 13 Oct 2025, 14:54 | 0.038 | 0.038 mg/l |
| 22 Sep 2025, 15:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2025, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jul 2025, 13:06 | 0.043 | 0.043 mg/l |
| 3 Jun 2025, 15:45 | 0.099 | 0.099 mg/l |
| 9 May 2025, 12:08 | 0.14 | 0.14 mg/l |
| 3 Apr 2025, 14:56 | 0.041 | 0.041 mg/l |
| 3 Mar 2025, 14:04 | 0.08 | 0.08 mg/l |
| 10 Feb 2025, 14:38 | 0.11 | 0.11 mg/l |
| 20 Jan 2025, 11:13 | 0.17 | 0.17 mg/l |
| 3 Dec 2024, 14:05 | 0.08 | 0.08 mg/l |
| 18 Nov 2024, 11:12 | 0.33 | 0.33 mg/l |
| 18 Oct 2024, 11:16 | 0.071 | 0.071 mg/l |
| 16 Sep 2024, 13:00 | 0.11 | 0.11 mg/l |
| 22 Aug 2024, 13:38 | 0.094 | 0.094 mg/l |
| 15 Jul 2024, 10:28 | 0.13 | 0.13 mg/l |
| 18 Jun 2024, 11:25 | 0.073 | 0.073 mg/l |
| 16 May 2024, 15:28 | 0.12 | 0.12 mg/l |
| 15 Apr 2024, 11:52 | 0.21 | 0.21 mg/l |
| 18 Mar 2024, 10:42 | 0.049 | 0.049 mg/l |
| 19 Feb 2024, 10:50 | 0.037 | 0.037 mg/l |
| 1 Dec 2023, 11:08 | 0.059 | 0.059 mg/l |
| 16 Nov 2023, 12:19 | 0.048 | 0.048 mg/l |
| 16 Oct 2023, 11:02 | 0.3 | 0.3 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.72 mg/l
Sampled 7 Sep 2026, 24 days ago · 35 results banked
Every result (35)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 4.72 | 4.72 mg/l |
| 6 Aug 2026, 14:16 | 6.93 | 6.93 mg/l |
| 7 Jul 2026, 10:51 | 6.2 | 6.2 mg/l |
| 8 Jun 2026, 13:53 | 3.04 | 3.04 mg/l |
| 11 May 2026, 13:56 | 5.26 | 5.26 mg/l |
| 10 Apr 2026, 13:43 | 7.07 | 7.07 mg/l |
| 2 Mar 2026, 10:51 | 11 | 11 mg/l |
| 3 Feb 2026, 12:39 | 14 | 14 mg/l |
| 5 Jan 2026, 12:45 | 9.15 | 9.15 mg/l |
| 4 Dec 2025, 12:28 | 11 | 11 mg/l |
| 6 Nov 2025, 13:47 | 5.02 | 5.02 mg/l |
| 13 Oct 2025, 14:54 | 6.63 | 6.63 mg/l |
| 22 Sep 2025, 15:21 | 6.63 | 6.63 mg/l |
| 12 Aug 2025, 13:10 | 6.63 | 6.63 mg/l |
| 4 Jul 2025, 13:06 | 6.62 | 6.62 mg/l |
| 3 Jun 2025, 15:45 | 2.36 | 2.36 mg/l |
| 9 May 2025, 12:08 | 6.05 | 6.05 mg/l |
| 3 Apr 2025, 14:56 | 6.78 | 6.78 mg/l |
| 3 Mar 2025, 14:04 | 9.47 | 9.47 mg/l |
| 10 Feb 2025, 14:38 | 8.46 | 8.46 mg/l |
| 20 Jan 2025, 11:13 | 8.15 | 8.15 mg/l |
| 3 Dec 2024, 14:05 | 7.06 | 7.06 mg/l |
| 18 Nov 2024, 11:12 | 3.73 | 3.73 mg/l |
| 18 Oct 2024, 11:16 | 5.87 | 5.87 mg/l |
| 16 Sep 2024, 13:00 | 4.86 | 4.86 mg/l |
| 22 Aug 2024, 13:38 | 4.75 | 4.75 mg/l |
| 15 Jul 2024, 10:28 | 6.06 | 6.06 mg/l |
| 18 Jun 2024, 11:25 | 6.75 | 6.75 mg/l |
| 16 May 2024, 15:28 | 3.76 | 3.76 mg/l |
| 15 Apr 2024, 11:52 | 5.57 | 5.57 mg/l |
| 18 Mar 2024, 10:42 | 7.87 | 7.87 mg/l |
| 19 Feb 2024, 10:50 | 7.58 | 7.58 mg/l |
| 1 Dec 2023, 11:08 | 8.41 | 8.41 mg/l |
| 16 Nov 2023, 12:19 | 8.85 | 8.85 mg/l |
| 16 Oct 2023, 11:02 | 5.53 | 5.53 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.1 mg/l
Sampled 7 Sep 2026, 24 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 0.1 | 0.1 mg/l |
| 6 Aug 2026, 14:16 | 0.081 | 0.081 mg/l |
| 7 Jul 2026, 10:51 | 0.07 | 0.07 mg/l |
| 8 Jun 2026, 13:53 | 0.11 | 0.11 mg/l |
| 11 May 2026, 13:56 | 0.036 | 0.036 mg/l |
| 10 Apr 2026, 13:43 | 0.018 | 0.018 mg/l |
| 2 Mar 2026, 10:51 | 0.059 | 0.059 mg/l |
| 3 Feb 2026, 12:39 | 0.067 | 0.067 mg/l |
| 5 Jan 2026, 12:45 | 0.062 | 0.062 mg/l |
| 4 Dec 2025, 12:28 | 0.13 | 0.13 mg/l |
| 6 Nov 2025, 13:47 | 0.094 | 0.094 mg/l |
| 13 Oct 2025, 14:54 | 0.073 | 0.073 mg/l |
| 22 Sep 2025, 15:21 | 0.071 | 0.071 mg/l |
| 12 Aug 2025, 13:10 | 0.058 | 0.058 mg/l |
| 4 Jul 2025, 13:06 | 0.045 | 0.045 mg/l |
| 3 Jun 2025, 15:45 | 0.11 | 0.11 mg/l |
| 9 May 2025, 12:08 | 0.058 | 0.058 mg/l |
| 3 Apr 2025, 14:56 | 0.026 | 0.026 mg/l |
| 3 Mar 2025, 14:04 | 0.061 | 0.061 mg/l |
| 10 Feb 2025, 14:38 | 0.08 | 0.08 mg/l |
| 20 Jan 2025, 11:13 | 0.084 | 0.084 mg/l |
| 18 Nov 2024, 11:12 | 0.094 | 0.094 mg/l |
| 18 Oct 2024, 11:16 | 0.13 | 0.13 mg/l |
| 16 Sep 2024, 13:00 | 0.077 | 0.077 mg/l |
| 22 Aug 2024, 13:38 | 0.066 | 0.066 mg/l |
| 15 Jul 2024, 10:28 | 0.094 | 0.094 mg/l |
| 18 Jun 2024, 11:25 | 0.082 | 0.082 mg/l |
| 16 May 2024, 15:28 | 0.089 | 0.089 mg/l |
| 15 Apr 2024, 11:52 | 0.084 | 0.084 mg/l |
| 18 Mar 2024, 10:42 | 0.08 | 0.08 mg/l |
| 19 Feb 2024, 10:50 | 0.073 | 0.073 mg/l |
| 1 Dec 2023, 11:08 | 0.075 | 0.075 mg/l |
| 16 Nov 2023, 12:19 | 0.084 | 0.084 mg/l |
| 16 Oct 2023, 11:02 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
728 µS/cm
Sampled 7 Sep 2026, 24 days ago · 36 results banked
Every result (36)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:18 | 728 | 728 µS/cm |
| 6 Aug 2026, 14:16 | 895 | 895 µS/cm |
| 7 Jul 2026, 10:51 | 909 | 909 µS/cm |
| 8 Jun 2026, 13:53 | 615 | 615 µS/cm |
| 11 May 2026, 13:56 | 916 | 916 µS/cm |
| 10 Apr 2026, 13:43 | 894 | 894 µS/cm |
| 2 Mar 2026, 10:51 | 929 | 929 µS/cm |
| 3 Feb 2026, 12:39 | 785 | 785 µS/cm |
| 5 Jan 2026, 12:45 | 1019 | 1019 µS/cm |
| 4 Dec 2025, 12:28 | 875 | 875 µS/cm |
| 6 Nov 2025, 13:47 | 903 | 903 µS/cm |
| 13 Oct 2025, 14:54 | 899 | 899 µS/cm |
| 22 Sep 2025, 15:21 | 884 | 884 µS/cm |
| 12 Aug 2025, 13:10 | 901 | 901 µS/cm |
| 4 Jul 2025, 13:06 | 902 | 902 µS/cm |
| 3 Jun 2025, 15:45 | 816 | 816 µS/cm |
| 9 May 2025, 12:08 | 888 | 888 µS/cm |
| 3 Apr 2025, 14:56 | 850 | 850 µS/cm |
| 3 Mar 2025, 14:04 | 798 | 798 µS/cm |
| 10 Feb 2025, 14:38 | 930 | 930 µS/cm |
| 20 Jan 2025, 11:13 | 943 | 943 µS/cm |
| 3 Dec 2024, 14:05 | 848 | 848 µS/cm |
| 18 Nov 2024, 11:12 | 992 | 992 µS/cm |
| 18 Oct 2024, 11:16 | 819 | 819 µS/cm |
| 16 Sep 2024, 13:00 | 891 | 891 µS/cm |
| 22 Aug 2024, 13:38 | 927 | 927 µS/cm |
| 15 Jul 2024, 10:28 | 906 | 906 µS/cm |
| 18 Jun 2024, 11:25 | 903 | 903 µS/cm |
| 16 May 2024, 15:28 | 530 | 530 µS/cm |
| 15 Apr 2024, 11:52 | 674 | 674 µS/cm |
| 18 Mar 2024, 10:42 | 873 | 873 µS/cm |
| 19 Feb 2024, 10:50 | 576 | 576 µS/cm |
| 17 Jan 2024, 14:03 | 937 | 937 µS/cm |
| 1 Dec 2023, 11:08 | 901 | 901 µS/cm |
| 16 Nov 2023, 12:19 | 789 | 789 µS/cm |
| 16 Oct 2023, 11:02 | 744 | 744 µS/cm |
Everything measured here
74 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 74 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 36 | Oct 2023 – Sep 2026 | 87.2% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 36 | Oct 2023 – Sep 2026 | 8.34 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 36 | Oct 2023 – Sep 2026 | 17.4 °C 7 Sep 2026 |
| pH 0061 | River water | 36 | Oct 2023 – Sep 2026 | 7.62 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 35 | Oct 2023 – Sep 2026 | 0.07 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 35 | Oct 2023 – Sep 2026 | 4.72 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 34 | Oct 2023 – Sep 2026 | 0.1 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 36 | Oct 2023 – Sep 2026 | 728 µS/cm 7 Sep 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 4 Dec 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 4 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 4 Dec 2025 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 4 Dec 2025 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 4 Dec 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 35 | Oct 2023 – Sep 2026 | 250 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 35 | Oct 2023 – Sep 2026 | 0.00093 mg/l 7 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 14 | Feb 2024 – Mar 2025 | 1.6 mg/l 3 Mar 2025 |
| Calcium, Dissolved 0239 | River water | 4 | Dec 2023 – Jul 2026 | 150 mg/l 7 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 3 | Dec 2023 – Jul 2026 | 1.8 mg/l 7 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 3 | Dec 2023 – Jul 2026 | 5.4 µg/l 7 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 4 | Dec 2023 – Jul 2026 | 13 µg/l 7 Jul 2026 |
| Nitrite as N 0118 | River water | 35 | Oct 2023 – Sep 2026 | 0.079 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 35 | Oct 2023 – Sep 2026 | 4.8 mg/l 7 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Dec 2025 – Dec 2025 | 0.0022 µg/l 4 Dec 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Dec 2025 – Dec 2025 | below 0.005 µg/l 4 Dec 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Dec 2025 – Dec 2025 | 0.0018 µg/l 4 Dec 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Dec 2025 – Dec 2025 | 0.001 µg/l 4 Dec 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Dec 2025 – Dec 2025 | 0.0027 µg/l 4 Dec 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Dec 2025 – Dec 2025 | 0.00085 µg/l 4 Dec 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 4 Dec 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Dec 2025 – Dec 2025 | 0.0012 µg/l 4 Dec 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Dec 2025 – Dec 2025 | below 0.006 µg/l 4 Dec 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 4 Dec 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 4 Dec 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 4 Dec 2025 |
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.