River Glen Surfleet A16 Road Bridge
EA name: R.GLEN SURFLEET A16 RD.BR.
Environment Agency sampling point AN-GLEN560S · 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
- 18 Aug 2026, 09:3244 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 40 since 19 Feb 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 525098, 328129As published, to the nearest 1 m. Open in a map
- River, by its own name
- Glen
- River, by the map
- River GlenPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Surfleet Sluice On the River Glen · 3.5 km along the river
- Nearest gauge upstream
- Kates Bridge On the River Glen · 21 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (16 samples)
Monitoring (UK govt policy - not GQA or RE) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
79.5%
Sampled 18 Aug 2026, 44 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 79.5 | 79.5% |
| 16 Jun 2026, 10:13 | 139.6 | 139.6% |
| 22 May 2026, 10:15 | 142.4 | 142.4% |
| 6 May 2026, 13:41 | 112.6 | 112.6% |
| 23 Apr 2026, 12:57 | 133.9 | 133.9% |
| 9 Apr 2026, 11:05 | 130.7 | 130.7% |
| 20 Mar 2026, 09:48 | 120.7 | 120.7% |
| 13 Mar 2026, 09:37 | 95.7 | 95.7% |
| 16 Feb 2026, 11:37 | 84.2 | 84.2% |
| 12 Feb 2026, 10:23 | 83.4 | 83.4% |
| 21 Jan 2026, 09:30 | 95.6 | 95.6% |
| 15 Jan 2026, 10:15 | 88.2 | 88.2% |
| 16 Dec 2025, 11:45 | 81.3 | 81.3% |
| 10 Dec 2025, 08:24 | 84.6 | 84.6% |
| 19 Nov 2025, 08:52 | 82.7 | 82.7% |
| 4 Nov 2025, 09:00 | 99.2 | 99.2% |
| 27 Oct 2025, 09:50 | 93.4 | 93.4% |
| 10 Oct 2025, 11:30 | 93.1 | 93.1% |
| 16 Sep 2025, 09:13 | 82.6 | 82.6% |
| 10 Sep 2025, 10:29 | 105.7 | 105.7% |
| 22 Aug 2025, 09:44 | 98.8 | 98.8% |
| 14 Aug 2025, 09:35 | 110.9 | 110.9% |
| 15 Jul 2025, 12:46 | 76.1 | 76.1% |
| 8 Jul 2025, 12:25 | 104.1 | 104.1% |
| 25 Jun 2025, 12:15 | 128.3 | 128.3% |
| 19 Jun 2025, 09:47 | 142.7 | 142.7% |
| 27 May 2025, 10:01 | 105.5 | 105.5% |
| 21 May 2025, 11:32 | 107.9 | 107.9% |
| 8 May 2025, 11:19 | 117.4 | 117.4% |
| 16 Apr 2025, 14:33 | 120.8 | 120.8% |
| 11 Apr 2025, 11:45 | 148.6 | 148.6% |
| 18 Mar 2024, 09:24 | 93.1 | 93.1% |
| 19 Feb 2024, 09:25 | 88.6 | 88.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.07 mg/l
Sampled 18 Aug 2026, 44 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 7.07 | 7.07 mg/l |
| 16 Jun 2026, 10:13 | 13.3 | 13.3 mg/l |
| 22 May 2026, 10:15 | 13.7 | 13.7 mg/l |
| 6 May 2026, 13:41 | 11.3 | 11.3 mg/l |
| 23 Apr 2026, 12:57 | 14 | 14 mg/l |
| 9 Apr 2026, 11:05 | 13.6 | 13.6 mg/l |
| 20 Mar 2026, 09:48 | 13.3 | 13.3 mg/l |
| 13 Mar 2026, 09:37 | 11.2 | 11.2 mg/l |
| 16 Feb 2026, 11:37 | 10.7 | 10.7 mg/l |
| 12 Feb 2026, 10:23 | 9.74 | 9.74 mg/l |
| 21 Jan 2026, 09:30 | 11.7 | 11.7 mg/l |
| 15 Jan 2026, 10:15 | 11 | 11 mg/l |
| 16 Dec 2025, 11:45 | 9.4 | 9.4 mg/l |
| 10 Dec 2025, 08:24 | 9.69 | 9.69 mg/l |
| 19 Nov 2025, 08:52 | 10.2 | 10.2 mg/l |
| 4 Nov 2025, 09:00 | 11 | 11 mg/l |
| 27 Oct 2025, 09:50 | 10.8 | 10.8 mg/l |
| 10 Oct 2025, 11:30 | 9.68 | 9.68 mg/l |
| 16 Sep 2025, 09:13 | 8.51 | 8.51 mg/l |
| 10 Sep 2025, 10:29 | 10.2 | 10.2 mg/l |
| 22 Aug 2025, 09:44 | 9.46 | 9.46 mg/l |
| 14 Aug 2025, 09:35 | 9.86 | 9.86 mg/l |
| 15 Jul 2025, 12:46 | 6.85 | 6.85 mg/l |
| 8 Jul 2025, 12:25 | 9.48 | 9.48 mg/l |
| 25 Jun 2025, 12:15 | 11.3 | 11.3 mg/l |
| 19 Jun 2025, 09:47 | 12.7 | 12.7 mg/l |
| 27 May 2025, 10:01 | 10.4 | 10.4 mg/l |
| 21 May 2025, 11:32 | 10.3 | 10.3 mg/l |
| 8 May 2025, 11:19 | 12.2 | 12.2 mg/l |
| 16 Apr 2025, 14:33 | 12.7 | 12.7 mg/l |
| 11 Apr 2025, 11:45 | 15.4 | 15.4 mg/l |
| 18 Mar 2024, 09:24 | 10.5 | 10.5 mg/l |
| 19 Feb 2024, 09:25 | 10 | 10 mg/l |
Water temperature
code 0076 · °C
21 °C
Sampled 18 Aug 2026, 44 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 21 | 21 °C |
| 16 Jun 2026, 10:13 | 17.5 | 17.5 °C |
| 22 May 2026, 10:15 | 17.1 | 17.1 °C |
| 6 May 2026, 13:41 | 15.2 | 15.2 °C |
| 23 Apr 2026, 12:57 | 13.1 | 13.1 °C |
| 9 Apr 2026, 11:05 | 13.5 | 13.5 °C |
| 20 Mar 2026, 09:48 | 11 | 11 °C |
| 13 Mar 2026, 09:37 | 8.3 | 8.3 °C |
| 16 Feb 2026, 11:37 | 5.3 | 5.3 °C |
| 12 Feb 2026, 10:23 | 8.5 | 8.5 °C |
| 21 Jan 2026, 09:30 | 6.6 | 6.6 °C |
| 15 Jan 2026, 10:15 | 5.8 | 5.8 °C |
| 16 Dec 2025, 11:45 | 8.9 | 8.9 °C |
| 10 Dec 2025, 08:24 | 9.3 | 9.3 °C |
| 19 Nov 2025, 08:52 | 6.3 | 6.3 °C |
| 4 Nov 2025, 09:00 | 10.7 | 10.7 °C |
| 27 Oct 2025, 09:50 | 9 | 9 °C |
| 10 Oct 2025, 11:30 | 13.5 | 13.5 °C |
| 16 Sep 2025, 09:13 | 13.9 | 13.9 °C |
| 10 Sep 2025, 10:29 | 17.1 | 17.1 °C |
| 22 Aug 2025, 09:44 | 17.3 | 17.3 °C |
| 14 Aug 2025, 09:35 | 21 | 21 °C |
| 15 Jul 2025, 12:46 | 20.4 | 20.4 °C |
| 8 Jul 2025, 12:25 | 19.8 | 19.8 °C |
| 25 Jun 2025, 12:15 | 21.5 | 21.5 °C |
| 19 Jun 2025, 09:47 | 21.1 | 21.1 °C |
| 27 May 2025, 10:01 | 16.1 | 16.1 °C |
| 21 May 2025, 11:32 | 17.3 | 17.3 °C |
| 8 May 2025, 11:19 | 13.5 | 13.5 °C |
| 16 Apr 2025, 14:33 | 13.1 | 13.1 °C |
| 11 Apr 2025, 11:45 | 13.7 | 13.7 °C |
| 18 Mar 2024, 09:24 | 10.1 | 10.1 °C |
| 19 Feb 2024, 09:25 | 9.9 | 9.9 °C |
pH
code 0061
7.82
Sampled 18 Aug 2026, 44 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 7.82 | 7.82 |
| 16 Jun 2026, 10:13 | 8.24 | 8.24 |
| 22 May 2026, 10:15 | 8.45 | 8.45 |
| 6 May 2026, 13:41 | 8.16 | 8.16 |
| 23 Apr 2026, 12:57 | 8.27 | 8.27 |
| 9 Apr 2026, 11:05 | 8.33 | 8.33 |
| 20 Mar 2026, 09:48 | 8.27 | 8.27 |
| 13 Mar 2026, 09:37 | 8.19 | 8.19 |
| 16 Feb 2026, 11:37 | 7.8 | 7.8 |
| 12 Feb 2026, 10:23 | 7.81 | 7.81 |
| 21 Jan 2026, 09:30 | 7.88 | 7.88 |
| 15 Jan 2026, 10:15 | 8.1 | 8.1 |
| 16 Dec 2025, 11:45 | 7.9 | 7.9 |
| 10 Dec 2025, 08:24 | 7.8 | 7.8 |
| 19 Nov 2025, 08:52 | 7.73 | 7.73 |
| 4 Nov 2025, 09:00 | 8.36 | 8.36 |
| 27 Oct 2025, 09:50 | 8.3 | 8.3 |
| 10 Oct 2025, 11:30 | 8.19 | 8.19 |
| 16 Sep 2025, 09:13 | 8.25 | 8.25 |
| 10 Sep 2025, 10:29 | 8.41 | 8.41 |
| 22 Aug 2025, 09:44 | 8.11 | 8.11 |
| 14 Aug 2025, 09:35 | 8.24 | 8.24 |
| 15 Jul 2025, 12:46 | 7.64 | 7.64 |
| 8 Jul 2025, 12:25 | 7.96 | 7.96 |
| 25 Jun 2025, 12:15 | 8.27 | 8.27 |
| 19 Jun 2025, 09:47 | 7.99 | 7.99 |
| 27 May 2025, 10:01 | 8.02 | 8.02 |
| 21 May 2025, 11:32 | 7.86 | 7.86 |
| 8 May 2025, 11:19 | 8.09 | 8.09 |
| 16 Apr 2025, 14:33 | 8.46 | 8.46 |
| 11 Apr 2025, 11:45 | 8.05 | 8.05 |
| 18 Mar 2024, 09:24 | 8 | 8 |
| 19 Feb 2024, 09:25 | 7.78 | 7.78 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.032 mg/l
Sampled 18 Aug 2026, 44 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 0.032 | 0.032 mg/l |
| 16 Jun 2026, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 May 2026, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2026, 13:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Apr 2026, 12:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Apr 2026, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2026, 09:48 | 0.22 | 0.22 mg/l |
| 13 Mar 2026, 09:37 | 0.3 | 0.3 mg/l |
| 16 Feb 2026, 11:37 | 0.41 | 0.41 mg/l |
| 12 Feb 2026, 10:23 | 0.49 | 0.49 mg/l |
| 21 Jan 2026, 09:30 | 0.77 | 0.77 mg/l |
| 15 Jan 2026, 10:15 | 0.059 | 0.059 mg/l |
| 16 Dec 2025, 11:45 | 0.74 | 0.74 mg/l |
| 10 Dec 2025, 08:24 | 0.56 | 0.56 mg/l |
| 19 Nov 2025, 08:52 | 0.46 | 0.46 mg/l |
| 4 Nov 2025, 09:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Oct 2025, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Oct 2025, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2025, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2025, 09:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2025, 09:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jul 2025, 12:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2025, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jun 2025, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2025, 09:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 May 2025, 10:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 May 2025, 11:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 May 2025, 11:19 | 0.047 | 0.047 mg/l |
| 16 Apr 2025, 14:33 | 0.041 | 0.041 mg/l |
| 11 Apr 2025, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2024, 09:24 | 0.41 | 0.41 mg/l |
| 19 Feb 2024, 09:25 | 0.23 | 0.23 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 18 Aug 2026, 44 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Jun 2026, 10:13 | 0.923 | 0.923 mg/l |
| 22 May 2026, 10:15 | 2.88 | 2.88 mg/l |
| 6 May 2026, 13:41 | 4.17 | 4.17 mg/l |
| 23 Apr 2026, 12:57 | 4.67 | 4.67 mg/l |
| 9 Apr 2026, 11:05 | 4.97 | 4.97 mg/l |
| 20 Mar 2026, 09:48 | 6.75 | 6.75 mg/l |
| 13 Mar 2026, 09:37 | 7.76 | 7.76 mg/l |
| 16 Feb 2026, 11:37 | 7.18 | 7.18 mg/l |
| 12 Feb 2026, 10:23 | 8.55 | 8.55 mg/l |
| 21 Jan 2026, 09:30 | 9.63 | 9.63 mg/l |
| 15 Jan 2026, 10:15 | 8.67 | 8.67 mg/l |
| 16 Dec 2025, 11:45 | 9.44 | 9.44 mg/l |
| 10 Dec 2025, 08:24 | 11.9 | 11.9 mg/l |
| 19 Nov 2025, 08:52 | 14.8 | 14.8 mg/l |
| 4 Nov 2025, 09:00 | 0.189 | 0.189 mg/l |
| 27 Oct 2025, 09:50 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Oct 2025, 11:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Sep 2025, 09:13 | <0.196 | below 0.196 mg/l (not detected above this) |
| 22 Aug 2025, 09:44 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 Aug 2025, 09:35 | <0.196 | below 0.196 mg/l (not detected above this) |
| 15 Jul 2025, 12:46 | <0.196 | below 0.196 mg/l (not detected above this) |
| 8 Jul 2025, 12:25 | <0.196 | below 0.196 mg/l (not detected above this) |
| 25 Jun 2025, 12:15 | 0.283 | 0.283 mg/l |
| 19 Jun 2025, 09:47 | 0.956 | 0.956 mg/l |
| 27 May 2025, 10:01 | 2.76 | 2.76 mg/l |
| 21 May 2025, 11:32 | 2.75 | 2.75 mg/l |
| 8 May 2025, 11:19 | 3.17 | 3.17 mg/l |
| 16 Apr 2025, 14:33 | 4.28 | 4.28 mg/l |
| 11 Apr 2025, 11:45 | 4.39 | 4.39 mg/l |
| 18 Mar 2024, 09:24 | 6.94 | 6.94 mg/l |
| 19 Feb 2024, 09:25 | 5.66 | 5.66 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.15 mg/l
Sampled 18 Aug 2026, 44 days ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 0.15 | 0.15 mg/l |
| 16 Jun 2026, 10:13 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 May 2026, 10:15 | 0.013 | 0.013 mg/l |
| 6 May 2026, 13:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 23 Apr 2026, 12:57 | 0.01 | 0.01 mg/l |
| 9 Apr 2026, 11:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Mar 2026, 09:48 | 0.012 | 0.012 mg/l |
| 13 Mar 2026, 09:37 | 0.014 | 0.014 mg/l |
| 16 Feb 2026, 11:37 | 0.044 | 0.044 mg/l |
| 12 Feb 2026, 10:23 | 0.048 | 0.048 mg/l |
| 21 Jan 2026, 09:30 | 0.034 | 0.034 mg/l |
| 15 Jan 2026, 10:15 | 0.035 | 0.035 mg/l |
| 16 Dec 2025, 11:45 | 0.045 | 0.045 mg/l |
| 10 Dec 2025, 08:24 | 0.048 | 0.048 mg/l |
| 19 Nov 2025, 08:52 | 0.055 | 0.055 mg/l |
| 4 Nov 2025, 09:00 | 0.063 | 0.063 mg/l |
| 27 Oct 2025, 09:50 | 0.043 | 0.043 mg/l |
| 10 Oct 2025, 11:30 | 0.033 | 0.033 mg/l |
| 16 Sep 2025, 09:13 | 0.057 | 0.057 mg/l |
| 22 Aug 2025, 09:44 | 0.013 | 0.013 mg/l |
| 14 Aug 2025, 09:35 | 0.014 | 0.014 mg/l |
| 15 Jul 2025, 12:46 | 0.033 | 0.033 mg/l |
| 8 Jul 2025, 12:25 | 0.014 | 0.014 mg/l |
| 25 Jun 2025, 12:15 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Jun 2025, 09:47 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 May 2025, 10:01 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 May 2025, 11:32 | 0.017 | 0.017 mg/l |
| 8 May 2025, 11:19 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Apr 2025, 14:33 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Apr 2025, 11:45 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Mar 2024, 09:24 | 0.034 | 0.034 mg/l |
| 19 Feb 2024, 09:25 | 0.033 | 0.033 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
846 µS/cm
Sampled 18 Aug 2026, 44 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 09:32 | 846 | 846 µS/cm |
| 16 Jun 2026, 10:13 | 712 | 712 µS/cm |
| 22 May 2026, 10:15 | 747 | 747 µS/cm |
| 6 May 2026, 13:41 | 895 | 895 µS/cm |
| 23 Apr 2026, 12:57 | 743 | 743 µS/cm |
| 9 Apr 2026, 11:05 | 817 | 817 µS/cm |
| 20 Mar 2026, 09:48 | 858 | 858 µS/cm |
| 13 Mar 2026, 09:37 | 825 | 825 µS/cm |
| 16 Feb 2026, 11:37 | 651 | 651 µS/cm |
| 12 Feb 2026, 10:23 | 744 | 744 µS/cm |
| 21 Jan 2026, 09:30 | 903 | 903 µS/cm |
| 15 Jan 2026, 10:15 | 780 | 780 µS/cm |
| 16 Dec 2025, 11:45 | 981 | 981 µS/cm |
| 10 Dec 2025, 08:24 | 840 | 840 µS/cm |
| 19 Nov 2025, 08:52 | 759 | 759 µS/cm |
| 4 Nov 2025, 09:00 | 996 | 996 µS/cm |
| 27 Oct 2025, 09:50 | 956 | 956 µS/cm |
| 10 Oct 2025, 11:30 | 869 | 869 µS/cm |
| 16 Sep 2025, 09:13 | 936 | 936 µS/cm |
| 10 Sep 2025, 10:29 | 900 | 900 µS/cm |
| 22 Aug 2025, 09:44 | 740 | 740 µS/cm |
| 14 Aug 2025, 09:35 | 714 | 714 µS/cm |
| 15 Jul 2025, 12:46 | 758 | 758 µS/cm |
| 8 Jul 2025, 12:25 | 610 | 610 µS/cm |
| 25 Jun 2025, 12:15 | 611 | 611 µS/cm |
| 19 Jun 2025, 09:47 | 694 | 694 µS/cm |
| 27 May 2025, 10:01 | 771 | 771 µS/cm |
| 21 May 2025, 11:32 | 743 | 743 µS/cm |
| 8 May 2025, 11:19 | 736 | 736 µS/cm |
| 16 Apr 2025, 14:33 | 736 | 736 µS/cm |
| 11 Apr 2025, 11:45 | 788 | 788 µS/cm |
| 18 Mar 2024, 09:24 | 878 | 878 µS/cm |
| 19 Feb 2024, 09:25 | 575 | 575 µS/cm |
Everything measured here
95 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 141 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Feb 2024 – Aug 2026 | 79.5% 18 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 33 | Feb 2024 – Aug 2026 | 7.07 mg/l 18 Aug 2026 |
| Temperature of Water 0076 | River water | 33 | Feb 2024 – Aug 2026 | 21 °C 18 Aug 2026 |
| pH 0061 | River water | 33 | Feb 2024 – Aug 2026 | 7.82 18 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 32 | Feb 2024 – Aug 2026 | 0.032 mg/l 18 Aug 2026 |
| Nitrate as N 0117 | River water | 32 | Feb 2024 – Aug 2026 | below 0.196 mg/l 18 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 32 | Feb 2024 – Aug 2026 | 0.15 mg/l 18 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Feb 2024 – Aug 2026 | 846 µS/cm 18 Aug 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 1 | Apr 2026 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Apr 2026 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 6 | Apr 2024 – Sep 2024 | below 0.001 µg/l 3 Sep 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Apr 2026 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 7 | Apr 2024 – Apr 2026 | below 0.004 µg/l 9 Apr 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Apr 2026 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Apr 2026 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Apr 2026 – Apr 2026 | below 0.004 µg/l 9 Apr 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 1 | Apr 2026 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Apr 2026 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 1 | Apr 2026 – Apr 2026 | below 0.01 µg/l 9 Apr 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Apr 2026 – Apr 2026 | below 0.004 µg/l 9 Apr 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Apr 2026 – Apr 2026 | below 0.01 µg/l 9 Apr 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Apr 2026 – Apr 2026 | below 0.004 µg/l 9 Apr 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Apr 2026 – Apr 2026 | below 0.01 µg/l 9 Apr 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 32 | Feb 2024 – Aug 2026 | 210 mg/l 18 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 32 | Feb 2024 – Aug 2026 | 0.00087 mg/l 18 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 26 | Feb 2024 – May 2026 | 1.4 mg/l 22 May 2026 |
| Cadmium 0108 | River water | 18 | Feb 2024 – Aug 2026 | below 0.01 µg/l 18 Aug 2026 |
| Copper 6452 | River water | 18 | Feb 2024 – Aug 2026 | 0.4 µg/l 18 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 2 | Jun 2026 – Aug 2026 | 1 text result 18 Aug 2026 |
| HCH -gamma :- {Lindane} 0499 | River water | 18 | Feb 2024 – Aug 2026 | below 0.003 µg/l 18 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Apr 2026 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Lead 0050 | River water | 18 | Feb 2024 – Aug 2026 | below 0.1 µg/l 18 Aug 2026 |
| Mercury 0105 | River water | 17 | Feb 2024 – Aug 2026 | below 0.01 µg/l 18 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 7 | Apr 2024 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 7 | Apr 2024 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| Nickel 6462 | River water | 18 | Feb 2024 – Aug 2026 | 1.8 µg/l 18 Aug 2026 |
| Nitrite as N 0118 | River water | 32 | Feb 2024 – Aug 2026 | below 0.004 mg/l 18 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 13 | Feb 2024 – Aug 2026 | 0.56 mg/l 18 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 32 | Feb 2024 – Aug 2026 | below 0.2 mg/l 18 Aug 2026 |
| PCB - 028 9768 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 052 9769 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 101 9770 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 118 9771 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 138 9772 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 153 9773 | River water | 18 | Feb 2024 – Aug 2026 | below 0.001 µg/l 18 Aug 2026 |
| PCB - 180 9774 | River water | 18 | Feb 2024 – Aug 2026 | below 0.002 µg/l 18 Aug 2026 |
| PCB : Total 0753 | River water | 18 | Feb 2024 – Aug 2026 | below 0.008 µg/l 18 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorobutanoic acid 2995 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorodecanoic acid 8892 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 7 | Apr 2024 – Apr 2026 | below 0.005 µg/l 9 Apr 2026 |
| Perfluorododecanoic acid 8894 | River water | 7 | Apr 2024 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoroheptanoic acid 8889 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Apr 2026 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 7 | Apr 2024 – Apr 2026 | 0.0011 µg/l 9 Apr 2026 |
| Perfluorohexanoic acid 8888 | River water | 7 | Apr 2024 – Apr 2026 | 0.0012 µg/l 9 Apr 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorononanoic acid 8891 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 7 | Apr 2024 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 7 | Apr 2024 – Apr 2026 | 0.00058 µg/l 9 Apr 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Apr 2026 – Apr 2026 | 0.001 µg/l 9 Apr 2026 |
| Perfluorooctanoic acid 8890 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 7 | Apr 2024 – Apr 2026 | below 0.0005 µg/l 9 Apr 2026 |
| Perfluoropentanoic acid 8887 | River water | 7 | Apr 2024 – Apr 2026 | 0.0019 µg/l 9 Apr 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 7 | Apr 2024 – Apr 2026 | below 0.006 µg/l 9 Apr 2026 |
| Perfluorotridecanoic acid 2955 | River water | 7 | Apr 2024 – Apr 2026 | below 0.002 µg/l 9 Apr 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 7 | Apr 2024 – Apr 2026 | below 0.004 µg/l 9 Apr 2026 |
| Perfluoroundecanoic acid 8893 | River water | 7 | Apr 2024 – Apr 2026 | below 0.001 µg/l 9 Apr 2026 |
| Phosphorus, Total as P 0348 | River water | 13 | Feb 2024 – Aug 2026 | 0.17 mg/l 18 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 13 | Feb 2024 – Aug 2026 | below 3 mg/l 18 Aug 2026 |
| Zinc 6455 | River water | 18 | Feb 2024 – Aug 2026 | 1.1 µg/l 18 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.004 µg/l 19 Feb 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.005 µg/l 19 Feb 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | Groundwater | 1 | Feb 2024 – Feb 2024 | 0.0012 µg/l 19 Feb 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.02 µg/l 19 Feb 2024 |
| N-methylperfluorooctanesulfonamide 2975 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.02 µg/l 19 Feb 2024 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorobutanesulfonic acid 2972 | Groundwater | 1 | Feb 2024 – Feb 2024 | 0.001 µg/l 19 Feb 2024 |
| Perfluorobutanoic acid 2995 | Groundwater | 1 | Feb 2024 – Feb 2024 | 0.0035 µg/l 19 Feb 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorodecanesulfonic acid 2969 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
| Perfluorodecanoic acid 8892 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
| Perfluorododecane sulfonic acid 2968 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.005 µg/l 19 Feb 2024 |
| Perfluorododecanoic acid 8894 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
| Perfluoroheptanesulfonic acid 2967 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluoroheptanoic acid 8889 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| Perfluorohexanesulfonamide 2965 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorohexanoic acid 8888 | Groundwater | 1 | Feb 2024 – Feb 2024 | 0.0011 µg/l 19 Feb 2024 |
| Perfluorononanesulfonic acid 2963 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorononanoic acid 8891 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| Perfluorooctadecanoic acid 2962 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
| Perfluorooctanesulfonamide 2961 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluorooctanoic acid 8890 | Groundwater | 1 | Feb 2024 – Feb 2024 | 0.0009 µg/l 19 Feb 2024 |
| Perfluoropentanesulfonic acid 2957 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.0005 µg/l 19 Feb 2024 |
| Perfluoropentanoic acid 8887 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.001 µg/l 19 Feb 2024 |
| Perfluorotetradecanoic acid 8895 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.005 µg/l 19 Feb 2024 |
| Perfluorotridecanoic acid 2955 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.005 µg/l 19 Feb 2024 |
| Perfluoroundecane sulfonic acid 2953 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.004 µg/l 19 Feb 2024 |
| Perfluoroundecanoic acid 8893 | Groundwater | 1 | Feb 2024 – Feb 2024 | below 0.002 µg/l 19 Feb 2024 |
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.