Stort at Burnt Mill
EA name: STORT AT BURNT MILL
Environment Agency sampling point TH-PLER0144 · 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
- 21 Sep 2026, 12:5310 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 2 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) · results completed 23 Sep 2026
- Where
- National Grid 544605, 211322As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stort
- River, by the map
- River StortPlaced on the river its name gives, 14 m from the line.
- Next gauge downstream
- Roydon, Glen Faba On the River Stort · 7.3 km along the river (the path rests on a repair to the map)
- Nearest gauge upstream
- Harlow Mill On the River Stort · 3.4 km along the river
- Why it was sampled
- Monitoring (national agency policy) (28 samples)
Planned investigation (local monitoring) (6 samples)
Results here were completed a median of 3 days after the sample was taken (2 to 91 days, 13 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
128.4%
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 128.4 | 128.4% |
| 6 Aug 2026, 11:45 | 81.5 | 81.5% |
| 7 Jul 2026, 11:13 | 119.8 | 119.8% |
| 5 Jun 2026, 08:58 | 79.4 | 79.4% |
| 14 May 2026, 10:43 | 110.8 | 110.8% |
| 8 Apr 2026, 12:44 | 122.4 | 122.4% |
| 2 Mar 2026, 12:14 | 99.7 | 99.7% |
| 4 Feb 2026, 10:53 | 96.3 | 96.3% |
| 12 Jan 2026, 13:49 | 98.8 | 98.8% |
| 3 Dec 2025, 13:14 | 84.9 | 84.9% |
| 6 Nov 2025, 09:50 | 74.1 | 74.1% |
| 9 Oct 2025, 08:12 | 66.6 | 66.6% |
| 5 Sep 2025, 13:23 | 84.8 | 84.8% |
| 21 Aug 2025, 11:17 | 54 | 54% |
| 17 Jul 2025, 12:03 | 92.9 | 92.9% |
| 16 Jun 2025, 12:52 | 114.9 | 114.9% |
| 21 May 2025, 10:27 | 113 | 113% |
| 24 Apr 2025, 11:06 | 102.1 | 102.1% |
| 5 Mar 2025, 11:25 | 95.8 | 95.8% |
| 4 Feb 2025, 11:18 | 94.5 | 94.5% |
| 8 Jan 2025, 11:05 | 96.8 | 96.8% |
| 3 Dec 2024, 11:26 | 90.5 | 90.5% |
| 14 Nov 2024, 08:47 | 77.8 | 77.8% |
| 3 Oct 2024, 14:30 | 93.3 | 93.3% |
| 4 Sep 2024, 14:35 | 93.9 | 93.9% |
| 6 Aug 2024, 11:37 | 102.4 | 102.4% |
| 3 Jul 2024, 13:50 | 109.6 | 109.6% |
| 4 Jun 2024, 12:15 | 93.4 | 93.4% |
| 5 Mar 2024, 11:09 | 98.3 | 98.3% |
| 7 Feb 2024, 08:36 | 94.6 | 94.6% |
| 3 Jan 2024, 14:49 | 91.3 | 91.3% |
| 7 Dec 2023, 13:59 | 93.7 | 93.7% |
| 1 Nov 2023, 11:13 | 88.5 | 88.5% |
| 2 Oct 2023, 11:21 | 76 | 76% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.4 mg/l
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 12.4 | 12.4 mg/l |
| 6 Aug 2026, 11:45 | 7.44 | 7.44 mg/l |
| 7 Jul 2026, 11:13 | 10.4 | 10.4 mg/l |
| 5 Jun 2026, 08:58 | 7.77 | 7.77 mg/l |
| 14 May 2026, 10:43 | 12 | 12 mg/l |
| 8 Apr 2026, 12:44 | 12.4 | 12.4 mg/l |
| 2 Mar 2026, 12:14 | 11.2 | 11.2 mg/l |
| 4 Feb 2026, 10:53 | 11.8 | 11.8 mg/l |
| 12 Jan 2026, 13:49 | 11.9 | 11.9 mg/l |
| 3 Dec 2025, 13:14 | 10.2 | 10.2 mg/l |
| 6 Nov 2025, 09:50 | 7.74 | 7.74 mg/l |
| 9 Oct 2025, 08:12 | 7.11 | 7.11 mg/l |
| 5 Sep 2025, 13:23 | 8.12 | 8.12 mg/l |
| 21 Aug 2025, 11:17 | 5.09 | 5.09 mg/l |
| 17 Jul 2025, 12:03 | 8.41 | 8.41 mg/l |
| 16 Jun 2025, 12:52 | 10.3 | 10.3 mg/l |
| 21 May 2025, 10:27 | 11.1 | 11.1 mg/l |
| 24 Apr 2025, 11:06 | 10.8 | 10.8 mg/l |
| 5 Mar 2025, 11:25 | 12 | 12 mg/l |
| 4 Feb 2025, 11:18 | 12 | 12 mg/l |
| 8 Jan 2025, 11:05 | 12.7 | 12.7 mg/l |
| 3 Dec 2024, 11:26 | 10.6 | 10.6 mg/l |
| 14 Nov 2024, 08:47 | 8.98 | 8.98 mg/l |
| 3 Oct 2024, 14:30 | 9.72 | 9.72 mg/l |
| 4 Sep 2024, 14:35 | 8.78 | 8.78 mg/l |
| 6 Aug 2024, 11:37 | 9.23 | 9.23 mg/l |
| 3 Jul 2024, 13:50 | 10.5 | 10.5 mg/l |
| 4 Jun 2024, 12:15 | 9.1 | 9.1 mg/l |
| 5 Mar 2024, 11:09 | 11.8 | 11.8 mg/l |
| 7 Feb 2024, 08:36 | 11 | 11 mg/l |
| 3 Jan 2024, 14:49 | 10.7 | 10.7 mg/l |
| 7 Dec 2023, 13:59 | 11.7 | 11.7 mg/l |
| 1 Nov 2023, 11:13 | 9.69 | 9.69 mg/l |
| 2 Oct 2023, 11:21 | 7.42 | 7.42 mg/l |
Water temperature
code 0076 · °C
16.9 °C
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 16.9 | 16.9 °C |
| 6 Aug 2026, 11:45 | 19.7 | 19.7 °C |
| 7 Jul 2026, 11:13 | 22.3 | 22.3 °C |
| 5 Jun 2026, 08:58 | 16.3 | 16.3 °C |
| 14 May 2026, 10:43 | 11.7 | 11.7 °C |
| 8 Apr 2026, 12:44 | 14.5 | 14.5 °C |
| 2 Mar 2026, 12:14 | 10.1 | 10.1 °C |
| 4 Feb 2026, 10:53 | 6.7 | 6.7 °C |
| 12 Jan 2026, 13:49 | 7.2 | 7.2 °C |
| 3 Dec 2025, 13:14 | 7.5 | 7.5 °C |
| 6 Nov 2025, 09:50 | 13.3 | 13.3 °C |
| 9 Oct 2025, 08:12 | 12.3 | 12.3 °C |
| 5 Sep 2025, 13:23 | 17.3 | 17.3 °C |
| 21 Aug 2025, 11:17 | 18.1 | 18.1 °C |
| 17 Jul 2025, 12:03 | 20.1 | 20.1 °C |
| 16 Jun 2025, 12:52 | 20.8 | 20.8 °C |
| 21 May 2025, 10:27 | 16 | 16 °C |
| 24 Apr 2025, 11:06 | 12.7 | 12.7 °C |
| 5 Mar 2025, 11:25 | 5.6 | 5.6 °C |
| 4 Feb 2025, 11:18 | 5.3 | 5.3 °C |
| 8 Jan 2025, 11:05 | 3.9 | 3.9 °C |
| 3 Dec 2024, 11:26 | 8.3 | 8.3 °C |
| 14 Nov 2024, 08:47 | 9 | 9 °C |
| 3 Oct 2024, 14:30 | 13.4 | 13.4 °C |
| 4 Sep 2024, 14:35 | 18.5 | 18.5 °C |
| 6 Aug 2024, 11:37 | 20.3 | 20.3 °C |
| 3 Jul 2024, 13:50 | 17.3 | 17.3 °C |
| 4 Jun 2024, 12:15 | 16.5 | 16.5 °C |
| 5 Mar 2024, 11:09 | 7.5 | 7.5 °C |
| 7 Feb 2024, 08:36 | 8.6 | 8.6 °C |
| 3 Jan 2024, 14:49 | 8.5 | 8.5 °C |
| 7 Dec 2023, 13:59 | 5.7 | 5.7 °C |
| 1 Nov 2023, 11:13 | 11.2 | 11.2 °C |
| 2 Oct 2023, 11:21 | 16.4 | 16.4 °C |
pH
code 0061
8.34
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 8.34 | 8.34 |
| 6 Aug 2026, 11:45 | 8.15 | 8.15 |
| 7 Jul 2026, 11:13 | 8.36 | 8.36 |
| 5 Jun 2026, 08:58 | 8.03 | 8.03 |
| 14 May 2026, 10:43 | 8.42 | 8.42 |
| 8 Apr 2026, 12:44 | 8.2 | 8.2 |
| 2 Mar 2026, 12:14 | 8.44 | 8.44 |
| 4 Feb 2026, 10:53 | 8.18 | 8.18 |
| 12 Jan 2026, 13:49 | 8.21 | 8.21 |
| 3 Dec 2025, 13:14 | 7.87 | 7.87 |
| 6 Nov 2025, 09:50 | 7.87 | 7.87 |
| 9 Oct 2025, 08:12 | 7.8 | 7.8 |
| 5 Sep 2025, 13:23 | 7.89 | 7.89 |
| 21 Aug 2025, 11:17 | 7.81 | 7.81 |
| 17 Jul 2025, 12:03 | 7.99 | 7.99 |
| 16 Jun 2025, 12:52 | 8.26 | 8.26 |
| 21 May 2025, 10:27 | 8.12 | 8.12 |
| 24 Apr 2025, 11:06 | 8.05 | 8.05 |
| 5 Mar 2025, 11:25 | 8.08 | 8.08 |
| 4 Feb 2025, 11:18 | 8.11 | 8.11 |
| 8 Jan 2025, 11:05 | 8.01 | 8.01 |
| 3 Dec 2024, 11:26 | 8.07 | 8.07 |
| 14 Nov 2024, 08:47 | 7.79 | 7.79 |
| 3 Oct 2024, 14:30 | 7.91 | 7.91 |
| 4 Sep 2024, 14:35 | 8.04 | 8.04 |
| 6 Aug 2024, 11:37 | 8.31 | 8.31 |
| 3 Jul 2024, 13:50 | 8.23 | 8.23 |
| 4 Jun 2024, 12:15 | 8.03 | 8.03 |
| 5 Mar 2024, 11:09 | 8.19 | 8.19 |
| 7 Feb 2024, 08:36 | 8.19 | 8.19 |
| 3 Jan 2024, 14:49 | 8.08 | 8.08 |
| 7 Dec 2023, 13:59 | 8.04 | 8.04 |
| 1 Nov 2023, 11:13 | 7.89 | 7.89 |
| 2 Oct 2023, 11:21 | 7.81 | 7.81 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Aug 2026, 11:45 | 0.033 | 0.033 mg/l |
| 7 Jul 2026, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2026, 08:58 | 0.073 | 0.073 mg/l |
| 14 May 2026, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2026, 12:44 | 0.05 | 0.05 mg/l |
| 2 Mar 2026, 12:14 | 0.072 | 0.072 mg/l |
| 4 Feb 2026, 10:53 | 0.066 | 0.066 mg/l |
| 12 Jan 2026, 13:49 | 0.055 | 0.055 mg/l |
| 3 Dec 2025, 13:14 | 0.047 | 0.047 mg/l |
| 6 Nov 2025, 09:50 | 0.078 | 0.078 mg/l |
| 9 Oct 2025, 08:12 | 0.035 | 0.035 mg/l |
| 5 Sep 2025, 13:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2025, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jun 2025, 12:52 | 0.035 | 0.035 mg/l |
| 21 May 2025, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Apr 2025, 11:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2025, 11:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2025, 11:18 | 0.032 | 0.032 mg/l |
| 8 Jan 2025, 11:05 | 0.038 | 0.038 mg/l |
| 3 Dec 2024, 11:26 | 0.041 | 0.041 mg/l |
| 14 Nov 2024, 08:47 | 0.036 | 0.036 mg/l |
| 3 Oct 2024, 14:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2024, 14:35 | 0.036 | 0.036 mg/l |
| 6 Aug 2024, 11:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2024, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2024, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2024, 11:09 | 0.036 | 0.036 mg/l |
| 7 Feb 2024, 08:36 | 0.056 | 0.056 mg/l |
| 3 Jan 2024, 14:49 | 0.064 | 0.064 mg/l |
| 7 Dec 2023, 13:59 | 0.031 | 0.031 mg/l |
| 1 Nov 2023, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Oct 2023, 11:21 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.58 mg/l
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 7.58 | 7.58 mg/l |
| 6 Aug 2026, 11:45 | 12.9 | 12.9 mg/l |
| 7 Jul 2026, 11:13 | 9.56 | 9.56 mg/l |
| 5 Jun 2026, 08:58 | 7.25 | 7.25 mg/l |
| 14 May 2026, 10:43 | 9.06 | 9.06 mg/l |
| 8 Apr 2026, 12:44 | 12 | 12 mg/l |
| 2 Mar 2026, 12:14 | 9.93 | 9.93 mg/l |
| 4 Feb 2026, 10:53 | 14.9 | 14.9 mg/l |
| 12 Jan 2026, 13:49 | 16 | 16 mg/l |
| 3 Dec 2025, 13:14 | 9.77 | 9.77 mg/l |
| 6 Nov 2025, 09:50 | 8.15 | 8.15 mg/l |
| 9 Oct 2025, 08:12 | 9.94 | 9.94 mg/l |
| 5 Sep 2025, 13:23 | 7.27 | 7.27 mg/l |
| 21 Aug 2025, 11:17 | 9.83 | 9.83 mg/l |
| 17 Jul 2025, 12:03 | 8.92 | 8.92 mg/l |
| 16 Jun 2025, 12:52 | 7.56 | 7.56 mg/l |
| 21 May 2025, 10:27 | 8.91 | 8.91 mg/l |
| 24 Apr 2025, 11:06 | 9.04 | 9.04 mg/l |
| 5 Mar 2025, 11:25 | 11 | 11 mg/l |
| 4 Feb 2025, 11:18 | 13 | 13 mg/l |
| 8 Jan 2025, 11:05 | 12 | 12 mg/l |
| 3 Dec 2024, 11:26 | 11 | 11 mg/l |
| 14 Nov 2024, 08:47 | 11 | 11 mg/l |
| 3 Oct 2024, 14:30 | 14 | 14 mg/l |
| 4 Sep 2024, 14:35 | 11 | 11 mg/l |
| 6 Aug 2024, 11:37 | 9.97 | 9.97 mg/l |
| 3 Jul 2024, 13:50 | 8.27 | 8.27 mg/l |
| 4 Jun 2024, 12:15 | 7.66 | 7.66 mg/l |
| 5 Mar 2024, 11:09 | 8.78 | 8.78 mg/l |
| 7 Feb 2024, 08:36 | 9.97 | 9.97 mg/l |
| 3 Jan 2024, 14:49 | 9.57 | 9.57 mg/l |
| 7 Dec 2023, 13:59 | 13 | 13 mg/l |
| 1 Nov 2023, 11:13 | 11 | 11 mg/l |
| 2 Oct 2023, 11:21 | 8.07 | 8.07 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.38 mg/l
Sampled 21 Sep 2026, 10 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 0.38 | 0.38 mg/l |
| 6 Aug 2026, 11:45 | 0.42 | 0.42 mg/l |
| 7 Jul 2026, 11:13 | 0.56 | 0.56 mg/l |
| 5 Jun 2026, 08:58 | 0.43 | 0.43 mg/l |
| 14 May 2026, 10:43 | 0.41 | 0.41 mg/l |
| 8 Apr 2026, 12:44 | 0.17 | 0.17 mg/l |
| 2 Mar 2026, 12:14 | 0.16 | 0.16 mg/l |
| 4 Feb 2026, 10:53 | 0.092 | 0.092 mg/l |
| 12 Jan 2026, 13:49 | 0.12 | 0.12 mg/l |
| 3 Dec 2025, 13:14 | 0.18 | 0.18 mg/l |
| 6 Nov 2025, 09:50 | 0.24 | 0.24 mg/l |
| 9 Oct 2025, 08:12 | 0.24 | 0.24 mg/l |
| 5 Sep 2025, 13:23 | 0.25 | 0.25 mg/l |
| 21 Aug 2025, 11:17 | 0.27 | 0.27 mg/l |
| 17 Jul 2025, 12:03 | 0.36 | 0.36 mg/l |
| 16 Jun 2025, 12:52 | 0.37 | 0.37 mg/l |
| 21 May 2025, 10:27 | 0.32 | 0.32 mg/l |
| 24 Apr 2025, 11:06 | 0.067 | 0.067 mg/l |
| 5 Mar 2025, 11:25 | 0.076 | 0.076 mg/l |
| 4 Feb 2025, 11:18 | 0.11 | 0.11 mg/l |
| 8 Jan 2025, 11:05 | 0.12 | 0.12 mg/l |
| 3 Dec 2024, 11:26 | 0.17 | 0.17 mg/l |
| 14 Nov 2024, 08:47 | 0.28 | 0.28 mg/l |
| 3 Oct 2024, 14:30 | 0.22 | 0.22 mg/l |
| 4 Sep 2024, 14:35 | 0.33 | 0.33 mg/l |
| 6 Aug 2024, 11:37 | 0.29 | 0.29 mg/l |
| 3 Jul 2024, 13:50 | 0.31 | 0.31 mg/l |
| 4 Jun 2024, 12:15 | 0.24 | 0.24 mg/l |
| 5 Mar 2024, 11:09 | 0.11 | 0.11 mg/l |
| 3 Jan 2024, 14:49 | 0.12 | 0.12 mg/l |
| 7 Dec 2023, 13:59 | 0.14 | 0.14 mg/l |
| 1 Nov 2023, 11:13 | 0.16 | 0.16 mg/l |
| 2 Oct 2023, 11:21 | 0.31 | 0.31 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
846 µS/cm
Sampled 21 Sep 2026, 10 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Sep 2026, 12:53 | 846 | 846 µS/cm |
| 6 Aug 2026, 11:45 | 992 | 992 µS/cm |
| 7 Jul 2026, 11:13 | 949 | 949 µS/cm |
| 5 Jun 2026, 08:58 | 883 | 883 µS/cm |
| 14 May 2026, 10:43 | 894 | 894 µS/cm |
| 8 Apr 2026, 12:44 | 888 | 888 µS/cm |
| 2 Mar 2026, 12:14 | 780 | 780 µS/cm |
| 4 Feb 2026, 10:53 | 815 | 815 µS/cm |
| 12 Jan 2026, 13:49 | 839 | 839 µS/cm |
| 3 Dec 2025, 13:14 | 914 | 914 µS/cm |
| 6 Nov 2025, 09:50 | 896 | 896 µS/cm |
| 9 Oct 2025, 08:12 | 938 | 938 µS/cm |
| 5 Sep 2025, 13:23 | 745 | 745 µS/cm |
| 21 Aug 2025, 11:17 | 963 | 963 µS/cm |
| 17 Jul 2025, 12:03 | 867 | 867 µS/cm |
| 16 Jun 2025, 12:52 | 891 | 891 µS/cm |
| 21 May 2025, 10:27 | 903 | 903 µS/cm |
| 24 Apr 2025, 11:06 | 846 | 846 µS/cm |
| 5 Mar 2025, 11:25 | 891 | 891 µS/cm |
| 4 Feb 2025, 11:18 | 856 | 856 µS/cm |
| 8 Jan 2025, 11:05 | 725 | 725 µS/cm |
| 3 Dec 2024, 11:26 | 793 | 793 µS/cm |
| 14 Nov 2024, 08:47 | 926 | 926 µS/cm |
| 3 Oct 2024, 14:30 | 650 | 650 µS/cm |
| 4 Sep 2024, 14:35 | 889 | 889 µS/cm |
| 6 Aug 2024, 11:37 | 895 | 895 µS/cm |
| 3 Jul 2024, 13:50 | 879 | 879 µS/cm |
| 4 Jun 2024, 12:15 | 840 | 840 µS/cm |
| 5 Mar 2024, 11:09 | 787 | 787 µS/cm |
| 7 Feb 2024, 08:36 | 833 | 833 µS/cm |
| 3 Jan 2024, 14:49 | 621 | 621 µS/cm |
| 7 Dec 2023, 13:59 | 828 | 828 µS/cm |
| 1 Nov 2023, 11:13 | 765 | 765 µS/cm |
| 2 Oct 2023, 11:21 | 822 | 822 µS/cm |
Everything measured here
69 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 69 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 34 | Oct 2023 – Sep 2026 | 128.4% 21 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 34 | Oct 2023 – Sep 2026 | 12.4 mg/l 21 Sep 2026 |
| Temperature of Water 0076 | River water | 34 | Oct 2023 – Sep 2026 | 16.9 °C 21 Sep 2026 |
| pH 0061 | River water | 34 | Oct 2023 – Sep 2026 | 8.34 21 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 34 | Oct 2023 – Sep 2026 | below 0.03 mg/l 21 Sep 2026 |
| Nitrate as N 0117 | River water | 34 | Oct 2023 – Sep 2026 | 7.58 mg/l 21 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 33 | Oct 2023 – Sep 2026 | 0.38 mg/l 21 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 34 | Oct 2023 – Sep 2026 | 846 µS/cm 21 Sep 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 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 3 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 5:3 Fluorotelomer betaine 2886 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 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 3 Dec 2025 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 1 | Dec 2025 – Dec 2025 | 0.007 µg/l 3 Dec 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Dec 2025 – Dec 2025 | 0.0017 µg/l 3 Dec 2025 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 1 | Dec 2025 – Dec 2025 | below 0.01 µg/l 3 Dec 2025 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 34 | Oct 2023 – Sep 2026 | 230 mg/l 21 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 34 | Oct 2023 – Sep 2026 | below 0.0009 mg/l 21 Sep 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Nitrite as N 0118 | River water | 34 | Oct 2023 – Sep 2026 | 0.021 mg/l 21 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 34 | Oct 2023 – Sep 2026 | 7.6 mg/l 21 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Dec 2025 – Dec 2025 | 0.0011 µg/l 3 Dec 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Dec 2025 – Dec 2025 | 0.0049 µg/l 3 Dec 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Dec 2025 – Dec 2025 | 0.0046 µg/l 3 Dec 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Dec 2025 – Dec 2025 | 0.0017 µg/l 3 Dec 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Dec 2025 – Dec 2025 | below 0.005 µg/l 3 Dec 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Dec 2025 – Dec 2025 | 0.0029 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Dec 2025 – Dec 2025 | 0.0011 µg/l 3 Dec 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Dec 2025 – Dec 2025 | 0.0041 µg/l 3 Dec 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Dec 2025 – Dec 2025 | 0.0071 µg/l 3 Dec 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Dec 2025 – Dec 2025 | below 0.0005 µg/l 3 Dec 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 Dec 2025 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 1 | Dec 2025 – Dec 2025 | 0.0066 µg/l 3 Dec 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Dec 2025 – Dec 2025 | 0.0045 µg/l 3 Dec 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Dec 2025 – Dec 2025 | 0.00056 µg/l 3 Dec 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Dec 2025 – Dec 2025 | 0.0088 µg/l 3 Dec 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Dec 2025 – Dec 2025 | below 0.006 µg/l 3 Dec 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Dec 2025 – Dec 2025 | below 0.002 µg/l 3 Dec 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Dec 2025 – Dec 2025 | below 0.004 µg/l 3 Dec 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Dec 2025 – Dec 2025 | below 0.001 µg/l 3 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.