River Tern Track to Stoke Grange
EA name: RIVER TERN TRACK TO STOKE GRANGE (also listed as “RIVER TERN TRACK TO STOKE GRANGE, TERNHILL”)
Environment Agency sampling point MD-26953660 · 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
- 24 Aug 2026, 13:2738 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 26 since 10 May 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 363140, 331450As published, to the nearest 10 m. Open in a map
- River, by its own name
- Tern Track To Stoke Grange
- River, by the map
- River TernPlaced on the river its name gives, 15 m from the line.
- Next gauge downstream
- Ternhill On the River Tern · 0.3 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (14 samples)
Monitoring (national agency policy) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.2%
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 95.2 | 95.2% |
| 30 Jul 2026, 14:24 | 94.7 | 94.7% |
| 29 Jun 2026, 13:22 | 98.3 | 98.3% |
| 20 May 2026, 15:10 | 100.5 | 100.5% |
| 29 Apr 2026, 12:10 | 110.6 | 110.6% |
| 27 Mar 2026, 09:45 | 94.8 | 94.8% |
| 24 Feb 2026, 10:10 | 94.3 | 94.3% |
| 2 Jan 2026, 10:50 | 94.1 | 94.1% |
| 9 Dec 2025, 09:40 | 89.5 | 89.5% |
| 20 Nov 2025, 09:34 | 94.8 | 94.8% |
| 31 Oct 2025, 11:45 | 91.8 | 91.8% |
| 7 Aug 2025, 10:41 | 96.2 | 96.2% |
| 21 Jul 2025, 09:56 | 87.1 | 87.1% |
| 18 Jun 2025, 09:16 | 87.4 | 87.4% |
| 2 May 2025, 12:12 | 104.6 | 104.6% |
| 10 Apr 2025, 10:27 | 101.4 | 101.4% |
| 17 Mar 2025, 10:55 | 97.7 | 97.7% |
| 11 Feb 2025, 11:43 | 94.8 | 94.8% |
| 23 Jan 2025, 11:00 | 94.2 | 94.2% |
| 5 Dec 2024, 11:39 | 93.3 | 93.3% |
| 18 Nov 2024, 12:46 | 93.4 | 93.4% |
| 19 Sep 2024, 11:00 | 92.5 | 92.5% |
| 29 Aug 2024, 11:42 | 95.9 | 95.9% |
| 16 Jul 2024, 11:26 | 81.6 | 81.6% |
| 24 Jun 2024, 11:15 | 95.5 | 95.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.41 mg/l
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 9.41 | 9.41 mg/l |
| 30 Jul 2026, 14:24 | 8.92 | 8.92 mg/l |
| 29 Jun 2026, 13:22 | 9.34 | 9.34 mg/l |
| 20 May 2026, 15:10 | 10.3 | 10.3 mg/l |
| 29 Apr 2026, 12:10 | 11.9 | 11.9 mg/l |
| 27 Mar 2026, 09:45 | 10.7 | 10.7 mg/l |
| 24 Feb 2026, 10:10 | 10.7 | 10.7 mg/l |
| 2 Jan 2026, 10:50 | 11.9 | 11.9 mg/l |
| 9 Dec 2025, 09:40 | 10.1 | 10.1 mg/l |
| 20 Nov 2025, 09:34 | 12.1 | 12.1 mg/l |
| 31 Oct 2025, 11:45 | 10.1 | 10.1 mg/l |
| 7 Aug 2025, 10:41 | 9.51 | 9.51 mg/l |
| 21 Jul 2025, 09:56 | 8.52 | 8.52 mg/l |
| 18 Jun 2025, 09:16 | 8.59 | 8.59 mg/l |
| 2 May 2025, 12:12 | 10.4 | 10.4 mg/l |
| 10 Apr 2025, 10:27 | 11.5 | 11.5 mg/l |
| 17 Mar 2025, 10:55 | 11.7 | 11.7 mg/l |
| 11 Feb 2025, 11:43 | 11.7 | 11.7 mg/l |
| 23 Jan 2025, 11:00 | 11.7 | 11.7 mg/l |
| 5 Dec 2024, 11:39 | 10.8 | 10.8 mg/l |
| 18 Nov 2024, 12:46 | 10.8 | 10.8 mg/l |
| 19 Sep 2024, 11:00 | 9.81 | 9.81 mg/l |
| 29 Aug 2024, 11:42 | 9.73 | 9.73 mg/l |
| 16 Jul 2024, 11:26 | 8.15 | 8.15 mg/l |
| 24 Jun 2024, 11:15 | 9.15 | 9.15 mg/l |
Water temperature
code 0076 · °C
15.8 °C
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 15.8 | 15.8 °C |
| 30 Jul 2026, 14:24 | 18.1 | 18.1 °C |
| 29 Jun 2026, 13:22 | 17.7 | 17.7 °C |
| 20 May 2026, 15:10 | 14 | 14 °C |
| 29 Apr 2026, 12:10 | 12 | 12 °C |
| 27 Mar 2026, 09:45 | 9.8 | 9.8 °C |
| 24 Feb 2026, 10:10 | 9.6 | 9.6 °C |
| 2 Jan 2026, 10:50 | 5.2 | 5.2 °C |
| 9 Dec 2025, 09:40 | 9.8 | 9.8 °C |
| 20 Nov 2025, 09:34 | 5.1 | 5.1 °C |
| 31 Oct 2025, 11:45 | 10.8 | 10.8 °C |
| 7 Aug 2025, 10:41 | 15.8 | 15.8 °C |
| 21 Jul 2025, 09:56 | 16.3 | 16.3 °C |
| 18 Jun 2025, 09:16 | 16.1 | 16.1 °C |
| 2 May 2025, 12:12 | 15.4 | 15.4 °C |
| 10 Apr 2025, 10:27 | 9.9 | 9.9 °C |
| 17 Mar 2025, 10:55 | 7.6 | 7.6 °C |
| 11 Feb 2025, 11:43 | 6.4 | 6.4 °C |
| 23 Jan 2025, 11:00 | 6.1 | 6.1 °C |
| 5 Dec 2024, 11:39 | 8.8 | 8.8 °C |
| 18 Nov 2024, 12:46 | 9 | 9 °C |
| 19 Sep 2024, 11:00 | 12.6 | 12.6 °C |
| 29 Aug 2024, 11:42 | 14.6 | 14.6 °C |
| 16 Jul 2024, 11:26 | 15.3 | 15.3 °C |
| 24 Jun 2024, 11:15 | 17.3 | 17.3 °C |
pH
code 0061
7.95
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 7.95 | 7.95 |
| 30 Jul 2026, 14:24 | 8.15 | 8.15 |
| 29 Jun 2026, 13:22 | 7.99 | 7.99 |
| 20 May 2026, 15:10 | 8.01 | 8.01 |
| 29 Apr 2026, 12:10 | 8.17 | 8.17 |
| 27 Mar 2026, 09:45 | 7.55 | 7.55 |
| 24 Feb 2026, 10:10 | 7.87 | 7.87 |
| 2 Jan 2026, 10:50 | 7.9 | 7.9 |
| 9 Dec 2025, 09:40 | 7.66 | 7.66 |
| 20 Nov 2025, 09:34 | 7.63 | 7.63 |
| 31 Oct 2025, 11:45 | 7.97 | 7.97 |
| 7 Aug 2025, 10:41 | 7.99 | 7.99 |
| 21 Jul 2025, 09:56 | 8.04 | 8.04 |
| 18 Jun 2025, 09:16 | 7.98 | 7.98 |
| 2 May 2025, 12:12 | 8.17 | 8.17 |
| 10 Apr 2025, 10:27 | 8.13 | 8.13 |
| 17 Mar 2025, 10:55 | 8.06 | 8.06 |
| 11 Feb 2025, 11:43 | 7.9 | 7.9 |
| 23 Jan 2025, 11:00 | 7.83 | 7.83 |
| 5 Dec 2024, 11:39 | 7.84 | 7.84 |
| 18 Nov 2024, 12:46 | 7.95 | 7.95 |
| 19 Sep 2024, 11:00 | 7.88 | 7.88 |
| 29 Aug 2024, 11:42 | 8.07 | 8.07 |
| 16 Jul 2024, 11:26 | 7.67 | 7.67 |
| 24 Jun 2024, 11:15 | 7.95 | 7.95 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2026, 14:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jun 2026, 13:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 May 2026, 15:10 | 0.038 | 0.038 mg/l |
| 29 Apr 2026, 12:10 | 0.041 | 0.041 mg/l |
| 27 Mar 2026, 09:45 | 0.19 | 0.19 mg/l |
| 24 Feb 2026, 10:10 | 0.057 | 0.057 mg/l |
| 2 Jan 2026, 10:50 | 0.15 | 0.15 mg/l |
| 9 Dec 2025, 09:40 | 0.086 | 0.086 mg/l |
| 20 Nov 2025, 09:34 | 0.048 | 0.048 mg/l |
| 31 Oct 2025, 11:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 10:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jul 2025, 09:56 | 0.069 | 0.069 mg/l |
| 18 Jun 2025, 09:16 | 0.031 | 0.031 mg/l |
| 2 May 2025, 12:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2025, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2025, 10:55 | 0.039 | 0.039 mg/l |
| 11 Feb 2025, 11:43 | 0.071 | 0.071 mg/l |
| 23 Jan 2025, 11:00 | 0.1 | 0.1 mg/l |
| 5 Dec 2024, 11:39 | 0.078 | 0.078 mg/l |
| 18 Nov 2024, 12:46 | 0.044 | 0.044 mg/l |
| 19 Sep 2024, 11:00 | 0.045 | 0.045 mg/l |
| 29 Aug 2024, 11:42 | 0.051 | 0.051 mg/l |
| 16 Jul 2024, 11:26 | 0.1 | 0.1 mg/l |
| 24 Jun 2024, 11:15 | 0.06 | 0.06 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.99 mg/l
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 9.99 | 9.99 mg/l |
| 30 Jul 2026, 14:24 | 9.99 | 9.99 mg/l |
| 29 Jun 2026, 13:22 | 9.98 | 9.98 mg/l |
| 20 May 2026, 15:10 | 9.57 | 9.57 mg/l |
| 29 Apr 2026, 12:10 | 9.97 | 9.97 mg/l |
| 27 Mar 2026, 09:45 | 9.36 | 9.36 mg/l |
| 24 Feb 2026, 10:10 | 9.06 | 9.06 mg/l |
| 2 Jan 2026, 10:50 | 10.9 | 10.9 mg/l |
| 9 Dec 2025, 09:40 | 9.04 | 9.04 mg/l |
| 20 Nov 2025, 09:34 | 9.34 | 9.34 mg/l |
| 31 Oct 2025, 11:45 | 11 | 11 mg/l |
| 7 Aug 2025, 10:41 | 12 | 12 mg/l |
| 21 Jul 2025, 09:56 | 9.95 | 9.95 mg/l |
| 18 Jun 2025, 09:16 | 11 | 11 mg/l |
| 2 May 2025, 12:12 | 11 | 11 mg/l |
| 10 Apr 2025, 10:27 | 12 | 12 mg/l |
| 17 Mar 2025, 10:55 | 12 | 12 mg/l |
| 11 Feb 2025, 11:43 | 11 | 11 mg/l |
| 23 Jan 2025, 11:00 | 10.9 | 10.9 mg/l |
| 5 Dec 2024, 11:39 | 8.15 | 8.15 mg/l |
| 18 Nov 2024, 12:46 | 9.87 | 9.87 mg/l |
| 19 Sep 2024, 11:00 | 9.97 | 9.97 mg/l |
| 29 Aug 2024, 11:42 | 11 | 11 mg/l |
| 16 Jul 2024, 11:26 | 7.34 | 7.34 mg/l |
| 24 Jun 2024, 11:15 | 9.86 | 9.86 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.16 mg/l
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 0.16 | 0.16 mg/l |
| 30 Jul 2026, 14:24 | 0.14 | 0.14 mg/l |
| 29 Jun 2026, 13:22 | 0.23 | 0.23 mg/l |
| 20 May 2026, 15:10 | 0.17 | 0.17 mg/l |
| 29 Apr 2026, 12:10 | 0.084 | 0.084 mg/l |
| 27 Mar 2026, 09:45 | 0.097 | 0.097 mg/l |
| 24 Feb 2026, 10:10 | 0.1 | 0.1 mg/l |
| 2 Jan 2026, 10:50 | 0.13 | 0.13 mg/l |
| 9 Dec 2025, 09:40 | 0.13 | 0.13 mg/l |
| 20 Nov 2025, 09:34 | 0.1 | 0.1 mg/l |
| 31 Oct 2025, 11:45 | 0.12 | 0.12 mg/l |
| 7 Aug 2025, 10:41 | 0.11 | 0.11 mg/l |
| 21 Jul 2025, 09:56 | 0.14 | 0.14 mg/l |
| 18 Jun 2025, 09:16 | 0.11 | 0.11 mg/l |
| 2 May 2025, 12:12 | 0.086 | 0.086 mg/l |
| 10 Apr 2025, 10:27 | 0.063 | 0.063 mg/l |
| 17 Mar 2025, 10:55 | 0.072 | 0.072 mg/l |
| 11 Feb 2025, 11:43 | 0.18 | 0.18 mg/l |
| 23 Jan 2025, 11:00 | 0.15 | 0.15 mg/l |
| 5 Dec 2024, 11:39 | 0.18 | 0.18 mg/l |
| 18 Nov 2024, 12:46 | 0.12 | 0.12 mg/l |
| 19 Sep 2024, 11:00 | 0.14 | 0.14 mg/l |
| 29 Aug 2024, 11:42 | 0.15 | 0.15 mg/l |
| 16 Jul 2024, 11:26 | 0.25 | 0.25 mg/l |
| 24 Jun 2024, 11:15 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
725 µS/cm
Sampled 24 Aug 2026, 38 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 24 Aug 2026, 13:27 | 725 | 725 µS/cm |
| 30 Jul 2026, 14:24 | 735 | 735 µS/cm |
| 29 Jun 2026, 13:22 | 703 | 703 µS/cm |
| 20 May 2026, 15:10 | 630 | 630 µS/cm |
| 29 Apr 2026, 12:10 | 674 | 674 µS/cm |
| 27 Mar 2026, 09:45 | 603 | 603 µS/cm |
| 24 Feb 2026, 10:10 | 555 | 555 µS/cm |
| 2 Jan 2026, 10:50 | 668 | 668 µS/cm |
| 9 Dec 2025, 09:40 | 556 | 556 µS/cm |
| 20 Nov 2025, 09:34 | 623 | 623 µS/cm |
| 31 Oct 2025, 11:45 | 724 | 724 µS/cm |
| 7 Aug 2025, 10:41 | 740 | 740 µS/cm |
| 21 Jul 2025, 09:56 | 653 | 653 µS/cm |
| 18 Jun 2025, 09:16 | 676 | 676 µS/cm |
| 2 May 2025, 12:12 | 666 | 666 µS/cm |
| 10 Apr 2025, 10:27 | 648 | 648 µS/cm |
| 17 Mar 2025, 10:55 | 629 | 629 µS/cm |
| 11 Feb 2025, 11:43 | 615 | 615 µS/cm |
| 23 Jan 2025, 11:00 | 602 | 602 µS/cm |
| 5 Dec 2024, 11:39 | 551 | 551 µS/cm |
| 18 Nov 2024, 12:46 | 624 | 624 µS/cm |
| 19 Sep 2024, 11:00 | 643 | 643 µS/cm |
| 29 Aug 2024, 11:42 | 679 | 679 µS/cm |
| 16 Jul 2024, 11:26 | 563 | 563 µS/cm |
| 24 Jun 2024, 11:15 | 632 | 632 µS/cm |
Everything measured here
60 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 60 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 25 | Jun 2024 – Aug 2026 | 95.2% 24 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 25 | Jun 2024 – Aug 2026 | 9.41 mg/l 24 Aug 2026 |
| Temperature of Water 0076 | River water | 25 | Jun 2024 – Aug 2026 | 15.8 °C 24 Aug 2026 |
| pH 0061 | River water | 25 | Jun 2024 – Aug 2026 | 7.95 24 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Jun 2024 – Aug 2026 | below 0.03 mg/l 24 Aug 2026 |
| Nitrate as N 0117 | River water | 25 | Jun 2024 – Aug 2026 | 9.99 mg/l 24 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 25 | Jun 2024 – Aug 2026 | 0.16 mg/l 24 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 25 | Jun 2024 – Aug 2026 | 725 µS/cm 24 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | May 2024 – Mar 2025 | below 0.004 µg/l 17 Mar 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | May 2024 – Mar 2025 | below 0.005 µg/l 17 Mar 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | May 2024 – Mar 2025 | 0.005 µg/l 17 Mar 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Jun 2024 – Aug 2026 | 210 mg/l 24 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 25 | Jun 2024 – Aug 2026 | below 0.00075 mg/l 24 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | 1.4 mg/l 20 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| Nitrite as N 0118 | River water | 25 | Jun 2024 – Aug 2026 | 0.012 mg/l 24 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Jun 2024 – Aug 2026 | 10 mg/l 24 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorobutanoic acid 2995 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| Perfluorodecanoic acid 8892 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | May 2024 – Mar 2025 | below 0.005 µg/l 17 Mar 2025 |
| Perfluorododecanoic acid 8894 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoroheptanoic acid 8889 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | May 2024 – Mar 2025 | 0.00051 µg/l 17 Mar 2025 |
| Perfluorohexanoic acid 8888 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorononanoic acid 8891 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluorooctanoic acid 8890 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | May 2024 – Mar 2025 | below 0.0005 µg/l 17 Mar 2025 |
| Perfluoropentanoic acid 8887 | River water | 4 | May 2024 – Mar 2025 | below 0.001 µg/l 17 Mar 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | May 2024 – Mar 2025 | below 0.006 µg/l 17 Mar 2025 |
| Perfluorotridecanoic acid 2955 | River water | 4 | May 2024 – Mar 2025 | below 0.005 µg/l 17 Mar 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | May 2024 – Mar 2025 | below 0.004 µg/l 17 Mar 2025 |
| Perfluoroundecanoic acid 8893 | River water | 4 | May 2024 – Mar 2025 | below 0.002 µg/l 17 Mar 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.