200 m downstream of Tadmarton Road, Bloxham
EA name: 200M D/S TADMARTON ROAD, BLOXHAM (also listed as “RSN1746 200M D/S TADMARTON ROAD, BLOXHAM”)
Environment Agency sampling point TH-RSN1746 · 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, 14:0544 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 17 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 442740, 235753As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Bloxham BrookPlaced by position alone (the only river line close by), 3 m from the line.
- Next gauge downstream
- Heyford Bridge On the River Cherwell · 24 km along the river
- Nearest gauge upstream
- Bloxham On the Bloxham Brook · 0.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (27 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
92.2%
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 92.2 | 92.2% |
| 28 Jul 2026, 11:45 | 91.7 | 91.7% |
| 25 Jun 2026, 10:26 | 92.6 | 92.6% |
| 26 May 2026, 10:57 | 94 | 94% |
| 15 Apr 2026, 11:30 | 98.6 | 98.6% |
| 3 Mar 2026, 10:52 | 93.3 | 93.3% |
| 6 Feb 2026, 11:50 | 93.3 | 93.3% |
| 12 Jan 2026, 11:10 | 95.6 | 95.6% |
| 15 Dec 2025, 11:32 | 91.9 | 91.9% |
| 10 Mar 2025, 09:57 | 95.5 | 95.5% |
| 12 Feb 2025, 11:27 | 96.8 | 96.8% |
| 20 Jan 2025, 11:55 | 96.8 | 96.8% |
| 16 Dec 2024, 12:29 | 96.1 | 96.1% |
| 29 Nov 2024, 11:34 | 93.7 | 93.7% |
| 18 Oct 2024, 10:30 | 88.3 | 88.3% |
| 16 Sep 2024, 12:04 | 88.3 | 88.3% |
| 23 Aug 2024, 09:40 | 91.6 | 91.6% |
| 16 Jul 2024, 10:42 | 94.2 | 94.2% |
| 17 Jun 2024, 10:05 | 94.3 | 94.3% |
| 13 May 2024, 13:43 | 96.5 | 96.5% |
| 18 Apr 2024, 11:15 | 96 | 96% |
| 22 Mar 2024, 11:19 | 98.6 | 98.6% |
| 22 Feb 2024, 12:54 | 95.3 | 95.3% |
| 15 Jan 2024, 08:59 | 93 | 93% |
| 6 Dec 2023, 14:21 | 92.8 | 92.8% |
| 20 Nov 2023, 11:05 | 92 | 92% |
| 17 Oct 2023, 10:58 | 94.4 | 94.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.05 mg/l
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 9.05 | 9.05 mg/l |
| 28 Jul 2026, 11:45 | 9.22 | 9.22 mg/l |
| 25 Jun 2026, 10:26 | 8.9 | 8.9 mg/l |
| 26 May 2026, 10:57 | 9.35 | 9.35 mg/l |
| 15 Apr 2026, 11:30 | 10.7 | 10.7 mg/l |
| 3 Mar 2026, 10:52 | 10.7 | 10.7 mg/l |
| 6 Feb 2026, 11:50 | 11.3 | 11.3 mg/l |
| 12 Jan 2026, 11:10 | 11.5 | 11.5 mg/l |
| 15 Dec 2025, 11:32 | 10.4 | 10.4 mg/l |
| 10 Mar 2025, 09:57 | 11.1 | 11.1 mg/l |
| 12 Feb 2025, 11:27 | 11.8 | 11.8 mg/l |
| 20 Jan 2025, 11:55 | 11.7 | 11.7 mg/l |
| 16 Dec 2024, 12:29 | 11 | 11 mg/l |
| 29 Nov 2024, 11:34 | 11.2 | 11.2 mg/l |
| 18 Oct 2024, 10:30 | 9.58 | 9.58 mg/l |
| 16 Sep 2024, 12:04 | 9.24 | 9.24 mg/l |
| 23 Aug 2024, 09:40 | 9.4 | 9.4 mg/l |
| 16 Jul 2024, 10:42 | 9.79 | 9.79 mg/l |
| 17 Jun 2024, 10:05 | 10.1 | 10.1 mg/l |
| 13 May 2024, 13:43 | 10.1 | 10.1 mg/l |
| 18 Apr 2024, 11:15 | 10.9 | 10.9 mg/l |
| 22 Mar 2024, 11:19 | 11 | 11 mg/l |
| 22 Feb 2024, 12:54 | 11.3 | 11.3 mg/l |
| 15 Jan 2024, 08:59 | 11.7 | 11.7 mg/l |
| 6 Dec 2023, 14:21 | 11.2 | 11.2 mg/l |
| 20 Nov 2023, 11:05 | 10.3 | 10.3 mg/l |
| 17 Oct 2023, 10:58 | 10.5 | 10.5 mg/l |
Water temperature
code 0076 · °C
16.1 °C
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 16.1 | 16.1 °C |
| 28 Jul 2026, 11:45 | 15 | 15 °C |
| 25 Jun 2026, 10:26 | 17.1 | 17.1 °C |
| 26 May 2026, 10:57 | 15.5 | 15.5 °C |
| 15 Apr 2026, 11:30 | 11.7 | 11.7 °C |
| 3 Mar 2026, 10:52 | 9.3 | 9.3 °C |
| 6 Feb 2026, 11:50 | 7 | 7 °C |
| 12 Jan 2026, 11:10 | 7.4 | 7.4 °C |
| 15 Dec 2025, 11:32 | 10 | 10 °C |
| 10 Mar 2025, 09:57 | 8.7 | 8.7 °C |
| 12 Feb 2025, 11:27 | 6.7 | 6.7 °C |
| 20 Jan 2025, 11:55 | 7 | 7 °C |
| 16 Dec 2024, 12:29 | 9.5 | 9.5 °C |
| 29 Nov 2024, 11:34 | 7.7 | 7.7 °C |
| 18 Oct 2024, 10:30 | 11.6 | 11.6 °C |
| 16 Sep 2024, 12:04 | 13.2 | 13.2 °C |
| 23 Aug 2024, 09:40 | 14.1 | 14.1 °C |
| 16 Jul 2024, 10:42 | 13.5 | 13.5 °C |
| 17 Jun 2024, 10:05 | 12.1 | 12.1 °C |
| 13 May 2024, 13:43 | 13.1 | 13.1 °C |
| 18 Apr 2024, 11:15 | 9.8 | 9.8 °C |
| 22 Mar 2024, 11:19 | 10.3 | 10.3 °C |
| 22 Feb 2024, 12:54 | 8 | 8 °C |
| 15 Jan 2024, 08:59 | 5.7 | 5.7 °C |
| 6 Dec 2023, 14:21 | 7 | 7 °C |
| 20 Nov 2023, 11:05 | 10.2 | 10.2 °C |
| 17 Oct 2023, 10:58 | 10.7 | 10.7 °C |
pH
code 0061
8.11
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 8.11 | 8.11 |
| 28 Jul 2026, 11:45 | 8.05 | 8.05 |
| 25 Jun 2026, 10:26 | 7.96 | 7.96 |
| 26 May 2026, 10:57 | 7.92 | 7.92 |
| 15 Apr 2026, 11:30 | 8 | 8 |
| 3 Mar 2026, 10:52 | 7.75 | 7.75 |
| 6 Feb 2026, 11:50 | 7.56 | 7.56 |
| 12 Jan 2026, 11:10 | 7.79 | 7.79 |
| 15 Dec 2025, 11:32 | 7.78 | 7.78 |
| 10 Mar 2025, 09:57 | 7.84 | 7.84 |
| 12 Feb 2025, 11:27 | 7.82 | 7.82 |
| 20 Jan 2025, 11:55 | 7.91 | 7.91 |
| 16 Dec 2024, 12:29 | 7.8 | 7.8 |
| 29 Nov 2024, 11:34 | 7.68 | 7.68 |
| 18 Oct 2024, 10:30 | 7.74 | 7.74 |
| 16 Sep 2024, 12:04 | 7.82 | 7.82 |
| 23 Aug 2024, 09:40 | 7.85 | 7.85 |
| 16 Jul 2024, 10:42 | 7.87 | 7.87 |
| 17 Jun 2024, 10:05 | 7.82 | 7.82 |
| 13 May 2024, 13:43 | 7.81 | 7.81 |
| 18 Apr 2024, 11:15 | 8.01 | 8.01 |
| 22 Mar 2024, 11:19 | 7.91 | 7.91 |
| 22 Feb 2024, 12:54 | 7.54 | 7.54 |
| 15 Jan 2024, 08:59 | 7.87 | 7.87 |
| 6 Dec 2023, 14:21 | 7.7 | 7.7 |
| 20 Nov 2023, 11:05 | 7.73 | 7.73 |
| 17 Oct 2023, 10:58 | 7.96 | 7.96 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jul 2026, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jun 2026, 10:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 May 2026, 10:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Apr 2026, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2026, 10:52 | 0.062 | 0.062 mg/l |
| 6 Feb 2026, 11:50 | 0.043 | 0.043 mg/l |
| 12 Jan 2026, 11:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Dec 2025, 11:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2025, 09:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Feb 2025, 11:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jan 2025, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Dec 2024, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Nov 2024, 11:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 10:30 | 0.53 | 0.53 mg/l |
| 16 Sep 2024, 12:04 | 0.62 | 0.62 mg/l |
| 23 Aug 2024, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 10:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 13:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Apr 2024, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Mar 2024, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Feb 2024, 12:54 | 0.038 | 0.038 mg/l |
| 15 Jan 2024, 08:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Dec 2023, 14:21 | 0.037 | 0.037 mg/l |
| 20 Nov 2023, 11:05 | 0.052 | 0.052 mg/l |
| 17 Oct 2023, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.1 mg/l
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 4.1 | 4.1 mg/l |
| 28 Jul 2026, 11:45 | 4.2 | 4.2 mg/l |
| 25 Jun 2026, 10:26 | 4.19 | 4.19 mg/l |
| 26 May 2026, 10:57 | 4.19 | 4.19 mg/l |
| 15 Apr 2026, 11:30 | 4.59 | 4.59 mg/l |
| 3 Mar 2026, 10:52 | 5.49 | 5.49 mg/l |
| 6 Feb 2026, 11:50 | 3.39 | 3.39 mg/l |
| 12 Jan 2026, 11:10 | 6.27 | 6.27 mg/l |
| 15 Dec 2025, 11:32 | 6.58 | 6.58 mg/l |
| 10 Mar 2025, 09:57 | 4.5 | 4.5 mg/l |
| 12 Feb 2025, 11:27 | 4.2 | 4.2 mg/l |
| 20 Jan 2025, 11:55 | 4.7 | 4.7 mg/l |
| 16 Dec 2024, 12:29 | 4.59 | 4.59 mg/l |
| 29 Nov 2024, 11:34 | 4.39 | 4.39 mg/l |
| 18 Oct 2024, 10:30 | 6.29 | 6.29 mg/l |
| 16 Sep 2024, 12:04 | 3.65 | 3.65 mg/l |
| 23 Aug 2024, 09:40 | 4.1 | 4.1 mg/l |
| 16 Jul 2024, 10:42 | 3.49 | 3.49 mg/l |
| 17 Jun 2024, 10:05 | 3.89 | 3.89 mg/l |
| 13 May 2024, 13:43 | 4.59 | 4.59 mg/l |
| 18 Apr 2024, 11:15 | 5.19 | 5.19 mg/l |
| 22 Mar 2024, 11:19 | 4.89 | 4.89 mg/l |
| 22 Feb 2024, 12:54 | 2.19 | 2.19 mg/l |
| 15 Jan 2024, 08:59 | 6.1 | 6.1 mg/l |
| 6 Dec 2023, 14:21 | 4.59 | 4.59 mg/l |
| 20 Nov 2023, 11:05 | 4.59 | 4.59 mg/l |
| 17 Oct 2023, 10:58 | 4 | 4 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.015 mg/l
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 0.015 | 0.015 mg/l |
| 28 Jul 2026, 11:45 | <0.01 | below 0.01 mg/l (not detected above this) |
| 25 Jun 2026, 10:26 | 0.024 | 0.024 mg/l |
| 26 May 2026, 10:57 | 0.03 | 0.03 mg/l |
| 15 Apr 2026, 11:30 | 0.013 | 0.013 mg/l |
| 3 Mar 2026, 10:52 | 0.023 | 0.023 mg/l |
| 6 Feb 2026, 11:50 | 0.078 | 0.078 mg/l |
| 12 Jan 2026, 11:10 | 0.028 | 0.028 mg/l |
| 15 Dec 2025, 11:32 | 0.016 | 0.016 mg/l |
| 10 Mar 2025, 09:57 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Feb 2025, 11:27 | 0.013 | 0.013 mg/l |
| 20 Jan 2025, 11:55 | 0.013 | 0.013 mg/l |
| 16 Dec 2024, 12:29 | 0.014 | 0.014 mg/l |
| 29 Nov 2024, 11:34 | 0.029 | 0.029 mg/l |
| 18 Oct 2024, 10:30 | 0.051 | 0.051 mg/l |
| 16 Sep 2024, 12:04 | 0.087 | 0.087 mg/l |
| 23 Aug 2024, 09:40 | 0.031 | 0.031 mg/l |
| 16 Jul 2024, 10:42 | 0.022 | 0.022 mg/l |
| 17 Jun 2024, 10:05 | 0.018 | 0.018 mg/l |
| 13 May 2024, 13:43 | 0.017 | 0.017 mg/l |
| 18 Apr 2024, 11:15 | 0.011 | 0.011 mg/l |
| 22 Mar 2024, 11:19 | 0.012 | 0.012 mg/l |
| 22 Feb 2024, 12:54 | 0.055 | 0.055 mg/l |
| 15 Jan 2024, 08:59 | 0.024 | 0.024 mg/l |
| 6 Dec 2023, 14:21 | 0.027 | 0.027 mg/l |
| 20 Nov 2023, 11:05 | 0.032 | 0.032 mg/l |
| 17 Oct 2023, 10:58 | 0.017 | 0.017 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
782 µS/cm
Sampled 18 Aug 2026, 44 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Aug 2026, 14:05 | 782 | 782 µS/cm |
| 28 Jul 2026, 11:45 | 770 | 770 µS/cm |
| 25 Jun 2026, 10:26 | 756 | 756 µS/cm |
| 26 May 2026, 10:57 | 757 | 757 µS/cm |
| 15 Apr 2026, 11:30 | 735 | 735 µS/cm |
| 3 Mar 2026, 10:52 | 617 | 617 µS/cm |
| 6 Feb 2026, 11:50 | 327 | 327 µS/cm |
| 12 Jan 2026, 11:10 | 538 | 538 µS/cm |
| 15 Dec 2025, 11:32 | 686 | 686 µS/cm |
| 10 Mar 2025, 09:57 | 702 | 702 µS/cm |
| 12 Feb 2025, 11:27 | 650 | 650 µS/cm |
| 20 Jan 2025, 11:55 | 684 | 684 µS/cm |
| 16 Dec 2024, 12:29 | 655 | 655 µS/cm |
| 29 Nov 2024, 11:34 | 576 | 576 µS/cm |
| 18 Oct 2024, 10:30 | 637 | 637 µS/cm |
| 16 Sep 2024, 12:04 | 790 | 790 µS/cm |
| 23 Aug 2024, 09:40 | 769 | 769 µS/cm |
| 16 Jul 2024, 10:42 | 692 | 692 µS/cm |
| 17 Jun 2024, 10:05 | 707 | 707 µS/cm |
| 13 May 2024, 13:43 | 714 | 714 µS/cm |
| 18 Apr 2024, 11:15 | 688 | 688 µS/cm |
| 22 Mar 2024, 11:19 | 646 | 646 µS/cm |
| 22 Feb 2024, 12:54 | 290 | 290 µS/cm |
| 15 Jan 2024, 08:59 | 699 | 699 µS/cm |
| 6 Dec 2023, 14:21 | 587 | 587 µS/cm |
| 20 Nov 2023, 11:05 | 644 | 644 µS/cm |
| 17 Oct 2023, 10:58 | 770 | 770 µS/cm |
Everything measured here
68 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 68 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 27 | Oct 2023 – Aug 2026 | 92.2% 18 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Oct 2023 – Aug 2026 | 9.05 mg/l 18 Aug 2026 |
| Temperature of Water 0076 | River water | 27 | Oct 2023 – Aug 2026 | 16.1 °C 18 Aug 2026 |
| pH 0061 | River water | 27 | Oct 2023 – Aug 2026 | 8.11 18 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Aug 2026 | below 0.03 mg/l 18 Aug 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Aug 2026 | 4.1 mg/l 18 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Aug 2026 | 0.015 mg/l 18 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Oct 2023 – Aug 2026 | 782 µS/cm 18 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | May 2024 – Feb 2025 | below 0.004 µg/l 12 Feb 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | May 2024 – Feb 2025 | below 0.005 µg/l 12 Feb 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Oct 2023 – Aug 2026 | 290 mg/l 18 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Oct 2023 – Aug 2026 | below 0.00085 mg/l 18 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 20 | Feb 2024 – May 2026 | below 1 mg/l 26 May 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 8 | Jan 2026 – Aug 2026 | 1.3 mg/l 18 Aug 2026 |
| Chloride 0172 | River water | 8 | Jan 2026 – Aug 2026 | 38 mg/l 18 Aug 2026 |
| Flow Type 2896 | River water | 8 | Jan 2026 – Aug 2026 | Low Flow 18 Aug 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 2 | Mar 2026 – Jun 2026 | 1 text result 25 Jun 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Nitrite as N 0118 | River water | 27 | Oct 2023 – Aug 2026 | below 0.004 mg/l 18 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 8 | Jan 2026 – Aug 2026 | 4.3 mg/l 18 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Aug 2026 | 4.1 mg/l 18 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | May 2024 – Feb 2025 | 0.0021 µg/l 12 Feb 2025 |
| Perfluorobutanoic acid 2995 | River water | 4 | May 2024 – Feb 2025 | 0.0012 µg/l 12 Feb 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | May 2024 – Feb 2025 | 0.00076 µg/l 12 Feb 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Perfluorodecanoic acid 8892 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | May 2024 – Feb 2025 | below 0.005 µg/l 12 Feb 2025 |
| Perfluorododecanoic acid 8894 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoroheptanoic acid 8889 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorohexanoic acid 8888 | River water | 4 | May 2024 – Feb 2025 | below 0.0008 µg/l 12 Feb 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorononanoic acid 8891 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluorooctanoic acid 8890 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | May 2024 – Feb 2025 | below 0.0005 µg/l 12 Feb 2025 |
| Perfluoropentanoic acid 8887 | River water | 4 | May 2024 – Feb 2025 | below 0.001 µg/l 12 Feb 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | May 2024 – Feb 2025 | below 0.006 µg/l 12 Feb 2025 |
| Perfluorotridecanoic acid 2955 | River water | 4 | May 2024 – Feb 2025 | below 0.005 µg/l 12 Feb 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | May 2024 – Feb 2025 | below 0.004 µg/l 12 Feb 2025 |
| Perfluoroundecanoic acid 8893 | River water | 4 | May 2024 – Feb 2025 | below 0.002 µg/l 12 Feb 2025 |
| Phosphorus, Total as P 0348 | River water | 8 | Jan 2026 – Aug 2026 | 0.019 mg/l 18 Aug 2026 |
| Silica, reactive as SiO2 0182 | River water | 8 | Jan 2026 – Aug 2026 | 10 mg/l 18 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 8 | Jan 2026 – Aug 2026 | 3.9 mg/l 18 Aug 2026 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.