Syresham Stream tributary of Ouse. A43 Road Bridge Kindshl
EA name: SYRESHAM STR.TRIB.OUSE.A43 RD.BR.KINDSHL
Environment Agency sampling point AN-01M02 · 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
- 1 Sep 2026, 12:4530 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 25 Jun 2024 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 463800, 241400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedGrid reference only to 100 m and no line carries the name it gives, so position alone cannot choose. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (29 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
88.2%
Sampled 1 Sep 2026, 30 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 88.2 | 88.2% |
| 3 Aug 2026, 11:43 | 90.1 | 90.1% |
| 6 Jul 2026, 12:33 | 88.2 | 88.2% |
| 3 Jun 2026, 10:25 | 86.2 | 86.2% |
| 7 May 2026, 10:09 | 96.4 | 96.4% |
| 24 Apr 2026, 11:36 | 100.8 | 100.8% |
| 7 Apr 2026, 14:49 | 108.3 | 108.3% |
| 16 Mar 2026, 11:11 | 97.8 | 97.8% |
| 6 Feb 2026, 12:39 | 97.3 | 97.3% |
| 7 Jan 2026, 13:38 | 94.4 | 94.4% |
| 10 Dec 2025, 13:34 | 93.7 | 93.7% |
| 12 Nov 2025, 12:02 | 87.6 | 87.6% |
| 13 Oct 2025, 12:40 | 87.8 | 87.8% |
| 5 Sep 2025, 12:12 | 89.3 | 89.3% |
| 1 Aug 2025, 10:39 | 90.4 | 90.4% |
| 7 Jul 2025, 12:36 | 85.3 | 85.3% |
| 9 Jun 2025, 12:31 | 96.5 | 96.5% |
| 6 May 2025, 14:09 | 103.1 | 103.1% |
| 10 Apr 2025, 11:55 | 102.6 | 102.6% |
| 6 Mar 2025, 09:43 | 93.6 | 93.6% |
| 14 Feb 2025, 13:20 | 95.5 | 95.5% |
| 31 Jan 2025, 11:21 | 94.6 | 94.6% |
| 5 Dec 2024, 13:24 | 94.1 | 94.1% |
| 18 Nov 2024, 14:01 | 88.6 | 88.6% |
| 21 Oct 2024, 14:37 | 91 | 91% |
| 27 Sep 2024, 13:01 | 87.8 | 87.8% |
| 22 Aug 2024, 13:34 | 88.2 | 88.2% |
| 30 Jul 2024, 12:53 | 87.3 | 87.3% |
| 25 Jun 2024, 10:13 | 85.7 | 85.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.97 mg/l
Sampled 1 Sep 2026, 30 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 8.97 | 8.97 mg/l |
| 3 Aug 2026, 11:43 | 8.85 | 8.85 mg/l |
| 6 Jul 2026, 12:33 | 8.4 | 8.4 mg/l |
| 3 Jun 2026, 10:25 | 8.9 | 8.9 mg/l |
| 7 May 2026, 10:09 | 10.9 | 10.9 mg/l |
| 24 Apr 2026, 11:36 | 11.4 | 11.4 mg/l |
| 7 Apr 2026, 14:49 | 11.8 | 11.8 mg/l |
| 16 Mar 2026, 11:11 | 11.7 | 11.7 mg/l |
| 6 Feb 2026, 12:39 | 11.9 | 11.9 mg/l |
| 7 Jan 2026, 13:38 | 12.5 | 12.5 mg/l |
| 10 Dec 2025, 13:34 | 10.8 | 10.8 mg/l |
| 12 Nov 2025, 12:02 | 9.33 | 9.33 mg/l |
| 13 Oct 2025, 12:40 | 9.53 | 9.53 mg/l |
| 5 Sep 2025, 12:12 | 9.12 | 9.12 mg/l |
| 1 Aug 2025, 10:39 | 9.15 | 9.15 mg/l |
| 7 Jul 2025, 12:36 | 8.49 | 8.49 mg/l |
| 9 Jun 2025, 12:31 | 10.1 | 10.1 mg/l |
| 6 May 2025, 14:09 | 11.4 | 11.4 mg/l |
| 10 Apr 2025, 11:55 | 11.9 | 11.9 mg/l |
| 6 Mar 2025, 09:43 | 12 | 12 mg/l |
| 14 Feb 2025, 13:20 | 12.2 | 12.2 mg/l |
| 31 Jan 2025, 11:21 | 12 | 12 mg/l |
| 5 Dec 2024, 13:24 | 10.8 | 10.8 mg/l |
| 18 Nov 2024, 14:01 | 10.3 | 10.3 mg/l |
| 21 Oct 2024, 14:37 | 9.81 | 9.81 mg/l |
| 27 Sep 2024, 13:01 | 9.38 | 9.38 mg/l |
| 22 Aug 2024, 13:34 | 8.91 | 8.91 mg/l |
| 30 Jul 2024, 12:53 | 8.56 | 8.56 mg/l |
| 25 Jun 2024, 10:13 | 8.64 | 8.64 mg/l |
Water temperature
code 0076 · °C
14.5 °C
Sampled 1 Sep 2026, 30 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 14.5 | 14.5 °C |
| 3 Aug 2026, 11:43 | 16.1 | 16.1 °C |
| 6 Jul 2026, 12:33 | 17.6 | 17.6 °C |
| 3 Jun 2026, 10:25 | 13.8 | 13.8 °C |
| 7 May 2026, 10:09 | 9.9 | 9.9 °C |
| 24 Apr 2026, 11:36 | 9.8 | 9.8 °C |
| 7 Apr 2026, 14:49 | 11.5 | 11.5 °C |
| 16 Mar 2026, 11:11 | 7.6 | 7.6 °C |
| 6 Feb 2026, 12:39 | 6.8 | 6.8 °C |
| 7 Jan 2026, 13:38 | 3.5 | 3.5 °C |
| 10 Dec 2025, 13:34 | 9.1 | 9.1 °C |
| 12 Nov 2025, 12:02 | 12.4 | 12.4 °C |
| 13 Oct 2025, 12:40 | 11.6 | 11.6 °C |
| 5 Sep 2025, 12:12 | 14.3 | 14.3 °C |
| 1 Aug 2025, 10:39 | 14.7 | 14.7 °C |
| 7 Jul 2025, 12:36 | 15.5 | 15.5 °C |
| 9 Jun 2025, 12:31 | 13.1 | 13.1 °C |
| 6 May 2025, 14:09 | 10.7 | 10.7 °C |
| 10 Apr 2025, 11:55 | 8.8 | 8.8 °C |
| 6 Mar 2025, 09:43 | 4.8 | 4.8 °C |
| 14 Feb 2025, 13:20 | 4.9 | 4.9 °C |
| 31 Jan 2025, 11:21 | 5.2 | 5.2 °C |
| 5 Dec 2024, 13:24 | 9.4 | 9.4 °C |
| 18 Nov 2024, 14:01 | 8.7 | 8.7 °C |
| 21 Oct 2024, 14:37 | 11.9 | 11.9 °C |
| 27 Sep 2024, 13:01 | 12.3 | 12.3 °C |
| 22 Aug 2024, 13:34 | 14.8 | 14.8 °C |
| 30 Jul 2024, 12:53 | 16.2 | 16.2 °C |
| 25 Jun 2024, 10:13 | 14.9 | 14.9 °C |
pH
code 0061
8.13
Sampled 1 Sep 2026, 30 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 8.13 | 8.13 |
| 3 Aug 2026, 11:43 | 7.88 | 7.88 |
| 6 Jul 2026, 12:33 | 7.86 | 7.86 |
| 3 Jun 2026, 10:25 | 8.04 | 8.04 |
| 7 May 2026, 10:09 | 7.97 | 7.97 |
| 24 Apr 2026, 11:36 | 7.96 | 7.96 |
| 7 Apr 2026, 14:49 | 8.11 | 8.11 |
| 16 Mar 2026, 11:11 | 8.18 | 8.18 |
| 6 Feb 2026, 12:39 | 8.29 | 8.29 |
| 7 Jan 2026, 13:38 | 8.22 | 8.22 |
| 10 Dec 2025, 13:34 | 8.05 | 8.05 |
| 12 Nov 2025, 12:02 | 7.82 | 7.82 |
| 13 Oct 2025, 12:40 | 7.68 | 7.68 |
| 5 Sep 2025, 12:12 | 8.05 | 8.05 |
| 1 Aug 2025, 10:39 | 8.05 | 8.05 |
| 7 Jul 2025, 12:36 | 7.88 | 7.88 |
| 9 Jun 2025, 12:31 | 7.98 | 7.98 |
| 6 May 2025, 14:09 | 8.03 | 8.03 |
| 10 Apr 2025, 11:55 | 8.12 | 8.12 |
| 6 Mar 2025, 09:43 | 8.04 | 8.04 |
| 14 Feb 2025, 13:20 | 8.08 | 8.08 |
| 31 Jan 2025, 11:21 | 7.94 | 7.94 |
| 5 Dec 2024, 13:24 | 7.82 | 7.82 |
| 18 Nov 2024, 14:01 | 7.73 | 7.73 |
| 21 Oct 2024, 14:37 | 7.76 | 7.76 |
| 27 Sep 2024, 13:01 | 7.55 | 7.55 |
| 22 Aug 2024, 13:34 | 7.93 | 7.93 |
| 30 Jul 2024, 12:53 | 7.89 | 7.89 |
| 25 Jun 2024, 10:13 | 7.75 | 7.75 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 1 Sep 2026, 30 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Aug 2026, 11:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jul 2026, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2026, 10:25 | 0.037 | 0.037 mg/l |
| 7 May 2026, 10:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Apr 2026, 11:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Mar 2026, 11:11 | 0.033 | 0.033 mg/l |
| 6 Feb 2026, 12:39 | 0.045 | 0.045 mg/l |
| 7 Jan 2026, 13:38 | 0.2 | 0.2 mg/l |
| 10 Dec 2025, 13:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Nov 2025, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Oct 2025, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Sep 2025, 12:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Aug 2025, 10:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2025, 12:36 | 0.17 | 0.17 mg/l |
| 9 Jun 2025, 12:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 14:09 | 0.13 | 0.13 mg/l |
| 10 Apr 2025, 11:55 | 0.037 | 0.037 mg/l |
| 6 Mar 2025, 09:43 | 0.16 | 0.16 mg/l |
| 14 Feb 2025, 13:20 | 0.039 | 0.039 mg/l |
| 31 Jan 2025, 11:21 | 0.046 | 0.046 mg/l |
| 5 Dec 2024, 13:24 | 0.069 | 0.069 mg/l |
| 18 Nov 2024, 14:01 | 0.062 | 0.062 mg/l |
| 21 Oct 2024, 14:37 | 0.032 | 0.032 mg/l |
| 27 Sep 2024, 13:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2024, 13:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2024, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jun 2024, 10:13 | 0.072 | 0.072 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
7.79 mg/l
Sampled 1 Sep 2026, 30 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 7.79 | 7.79 mg/l |
| 3 Aug 2026, 11:43 | 8.79 | 8.79 mg/l |
| 6 Jul 2026, 12:33 | 8.09 | 8.09 mg/l |
| 3 Jun 2026, 10:25 | 3.78 | 3.78 mg/l |
| 7 May 2026, 10:09 | 7.48 | 7.48 mg/l |
| 24 Apr 2026, 11:36 | 8.07 | 8.07 mg/l |
| 16 Mar 2026, 11:11 | 4.38 | 4.38 mg/l |
| 6 Feb 2026, 12:39 | 1.79 | 1.79 mg/l |
| 7 Jan 2026, 13:38 | 4.86 | 4.86 mg/l |
| 10 Dec 2025, 13:34 | 6.89 | 6.89 mg/l |
| 12 Nov 2025, 12:02 | 1.79 | 1.79 mg/l |
| 13 Oct 2025, 12:40 | 6.19 | 6.19 mg/l |
| 5 Sep 2025, 12:12 | 2.19 | 2.19 mg/l |
| 1 Aug 2025, 10:39 | 4.29 | 4.29 mg/l |
| 7 Jul 2025, 12:36 | 2.24 | 2.24 mg/l |
| 9 Jun 2025, 12:31 | 5.41 | 5.41 mg/l |
| 6 May 2025, 14:09 | 6.42 | 6.42 mg/l |
| 10 Apr 2025, 11:55 | 6.47 | 6.47 mg/l |
| 6 Mar 2025, 09:43 | 4.78 | 4.78 mg/l |
| 14 Feb 2025, 13:20 | 5.07 | 5.07 mg/l |
| 31 Jan 2025, 11:21 | 3.18 | 3.18 mg/l |
| 5 Dec 2024, 13:24 | 3.48 | 3.48 mg/l |
| 18 Nov 2024, 14:01 | 4.45 | 4.45 mg/l |
| 21 Oct 2024, 14:37 | 4.37 | 4.37 mg/l |
| 27 Sep 2024, 13:01 | 5.08 | 5.08 mg/l |
| 22 Aug 2024, 13:34 | 7.97 | 7.97 mg/l |
| 30 Jul 2024, 12:53 | 6.85 | 6.85 mg/l |
| 25 Jun 2024, 10:13 | 7.01 | 7.01 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.044 mg/l
Sampled 1 Sep 2026, 30 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 0.044 | 0.044 mg/l |
| 3 Aug 2026, 11:43 | 0.037 | 0.037 mg/l |
| 6 Jul 2026, 12:33 | 0.05 | 0.05 mg/l |
| 3 Jun 2026, 10:25 | 0.036 | 0.036 mg/l |
| 7 May 2026, 10:09 | 0.036 | 0.036 mg/l |
| 24 Apr 2026, 11:36 | 0.021 | 0.021 mg/l |
| 16 Mar 2026, 11:11 | 0.03 | 0.03 mg/l |
| 6 Feb 2026, 12:39 | 0.098 | 0.098 mg/l |
| 7 Jan 2026, 13:38 | 0.032 | 0.032 mg/l |
| 10 Dec 2025, 13:34 | 0.046 | 0.046 mg/l |
| 12 Nov 2025, 12:02 | 0.046 | 0.046 mg/l |
| 13 Oct 2025, 12:40 | 0.035 | 0.035 mg/l |
| 5 Sep 2025, 12:12 | 0.036 | 0.036 mg/l |
| 1 Aug 2025, 10:39 | 0.044 | 0.044 mg/l |
| 7 Jul 2025, 12:36 | 0.039 | 0.039 mg/l |
| 9 Jun 2025, 12:31 | 0.047 | 0.047 mg/l |
| 6 May 2025, 14:09 | 0.049 | 0.049 mg/l |
| 10 Apr 2025, 11:55 | 0.022 | 0.022 mg/l |
| 6 Mar 2025, 09:43 | 0.036 | 0.036 mg/l |
| 14 Feb 2025, 13:20 | 0.027 | 0.027 mg/l |
| 31 Jan 2025, 11:21 | 0.016 | 0.016 mg/l |
| 5 Dec 2024, 13:24 | 0.044 | 0.044 mg/l |
| 18 Nov 2024, 14:01 | 0.052 | 0.052 mg/l |
| 21 Oct 2024, 14:37 | 0.047 | 0.047 mg/l |
| 27 Sep 2024, 13:01 | 0.11 | 0.11 mg/l |
| 22 Aug 2024, 13:34 | 0.084 | 0.084 mg/l |
| 30 Jul 2024, 12:53 | 0.11 | 0.11 mg/l |
| 25 Jun 2024, 10:13 | 0.071 | 0.071 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
794 µS/cm
Sampled 1 Sep 2026, 30 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 12:45 | 794 | 794 µS/cm |
| 3 Aug 2026, 11:43 | 811 | 811 µS/cm |
| 6 Jul 2026, 12:33 | 811 | 811 µS/cm |
| 3 Jun 2026, 10:25 | 616 | 616 µS/cm |
| 7 May 2026, 10:09 | 779 | 779 µS/cm |
| 24 Apr 2026, 11:36 | 778 | 778 µS/cm |
| 7 Apr 2026, 14:49 | 751 | 751 µS/cm |
| 16 Mar 2026, 11:11 | 682 | 682 µS/cm |
| 6 Feb 2026, 12:39 | 315 | 315 µS/cm |
| 7 Jan 2026, 13:38 | 962 | 962 µS/cm |
| 10 Dec 2025, 13:34 | 568 | 568 µS/cm |
| 12 Nov 2025, 12:02 | 578 | 578 µS/cm |
| 13 Oct 2025, 12:40 | 809 | 809 µS/cm |
| 5 Sep 2025, 12:12 | 554 | 554 µS/cm |
| 1 Aug 2025, 10:39 | 739 | 739 µS/cm |
| 7 Jul 2025, 12:36 | 436 | 436 µS/cm |
| 9 Jun 2025, 12:31 | 767 | 767 µS/cm |
| 6 May 2025, 14:09 | 797 | 797 µS/cm |
| 10 Apr 2025, 11:55 | 782 | 782 µS/cm |
| 6 Mar 2025, 09:43 | 712 | 712 µS/cm |
| 14 Feb 2025, 13:20 | 714 | 714 µS/cm |
| 31 Jan 2025, 11:21 | 603 | 603 µS/cm |
| 5 Dec 2024, 13:24 | 431 | 431 µS/cm |
| 18 Nov 2024, 14:01 | 713 | 713 µS/cm |
| 21 Oct 2024, 14:37 | 577 | 577 µS/cm |
| 27 Sep 2024, 13:01 | 340 | 340 µS/cm |
| 22 Aug 2024, 13:34 | 774 | 774 µS/cm |
| 30 Jul 2024, 12:53 | 784 | 784 µS/cm |
| 25 Jun 2024, 10:13 | 381 | 381 µS/cm |
Everything measured here
59 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 59 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Jun 2024 – Sep 2026 | 88.2% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Jun 2024 – Sep 2026 | 8.97 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 29 | Jun 2024 – Sep 2026 | 14.5 °C 1 Sep 2026 |
| pH 0061 | River water | 29 | Jun 2024 – Sep 2026 | 8.13 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Jun 2024 – Sep 2026 | below 0.03 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 28 | Jun 2024 – Sep 2026 | 7.79 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Jun 2024 – Sep 2026 | 0.044 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Jun 2024 – Sep 2026 | 794 µS/cm 1 Sep 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Jul 2025 – Jul 2025 | below 0.004 µg/l 7 Jul 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Jul 2025 – Jul 2025 | 0.012 µg/l 7 Jul 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Jun 2024 – Sep 2026 | 220 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Jun 2024 – Sep 2026 | below 0.00076 mg/l 1 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Jun 2024 – May 2026 | below 4 mg/l 7 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Jul 2025 – Jul 2025 | below 0.002 µg/l 7 Jul 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Jul 2025 – Jul 2025 | below 0.002 µg/l 7 Jul 2025 |
| Nitrite as N 0118 | River water | 28 | Jun 2024 – Sep 2026 | 0.012 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Jun 2024 – Sep 2026 | 7.8 mg/l 1 Sep 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jul 2025 – Jul 2025 | 0.0023 µg/l 7 Jul 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jul 2025 – Jul 2025 | 0.019 µg/l 7 Jul 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Jul 2025 – Jul 2025 | 0.0012 µg/l 7 Jul 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Jul 2025 – Jul 2025 | below 0.005 µg/l 7 Jul 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Jul 2025 – Jul 2025 | below 0.002 µg/l 7 Jul 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jul 2025 – Jul 2025 | 0.0079 µg/l 7 Jul 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Jul 2025 – Jul 2025 | 0.00059 µg/l 7 Jul 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Jul 2025 – Jul 2025 | 0.00085 µg/l 7 Jul 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jul 2025 – Jul 2025 | 0.0045 µg/l 7 Jul 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Jul 2025 – Jul 2025 | 0.022 µg/l 7 Jul 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Jul 2025 – Jul 2025 | below 0.002 µg/l 7 Jul 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jul 2025 – Jul 2025 | 0.0039 µg/l 7 Jul 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jul 2025 – Jul 2025 | 0.013 µg/l 7 Jul 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Jul 2025 – Jul 2025 | 0.0042 µg/l 7 Jul 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Jul 2025 – Jul 2025 | below 0.0005 µg/l 7 Jul 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jul 2025 – Jul 2025 | 0.025 µg/l 7 Jul 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Jul 2025 – Jul 2025 | below 0.006 µg/l 7 Jul 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Jul 2025 – Jul 2025 | below 0.002 µg/l 7 Jul 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Jul 2025 – Jul 2025 | below 0.004 µg/l 7 Jul 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Jul 2025 – Jul 2025 | below 0.001 µg/l 7 Jul 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.