River Avon Mid, Stratford upon Avon
EA name: RIVER AVON MID, STRATFORD UPON AVON (also listed as “RIVER AVON MID, PICNIC AREA, WARWICK ROAD, STRATFORD UPON AVON”)
Environment Agency sampling point MD-04787610 · 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
- 29 May 2026, 11:204 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 21 since 16 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 421042, 255648As published, to the nearest 1 m. Open in a map
- River, by its own name
- Avon Mid
- River, by the map
- River AvonPlaced on a river whose name partly matches its own, 22 m from the line.
- Next gauge downstream
- Stratford On the River Avon · 1.2 km along the river
- Nearest gauge upstream
- Wellesbourne On the River Dene · 9.6 km along the riverWarwick On the River Avon · 23 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (15 samples)
Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
87.7%
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 87.7 | 87.7% |
| 5 Mar 2026, 12:50 | 98.5 | 98.5% |
| 19 Feb 2026, 11:57 | 97.4 | 97.4% |
| 28 Jan 2026, 09:48 | 95.7 | 95.7% |
| 11 Mar 2025, 10:37 | 101.5 | 101.5% |
| 10 Feb 2025, 11:38 | 98.6 | 98.6% |
| 22 Jan 2025, 12:15 | 96.2 | 96.2% |
| 9 Dec 2024, 13:37 | 92.1 | 92.1% |
| 18 Nov 2024, 11:12 | 94.3 | 94.3% |
| 24 Oct 2024, 10:01 | 93.4 | 93.4% |
| 19 Sep 2024, 12:56 | 93.4 | 93.4% |
| 29 Aug 2024, 11:49 | 101.2 | 101.2% |
| 24 Jul 2024, 11:58 | 92.6 | 92.6% |
| 14 May 2024, 10:56 | 94.2 | 94.2% |
| 16 Apr 2024, 11:24 | 106.2 | 106.2% |
| 20 Mar 2024, 12:29 | 99.3 | 99.3% |
| 29 Feb 2024, 09:40 | 98.2 | 98.2% |
| 30 Jan 2024, 10:16 | 93.3 | 93.3% |
| 20 Dec 2023, 11:44 | 94.2 | 94.2% |
| 29 Nov 2023, 11:27 | 98 | 98% |
| 16 Oct 2023, 12:07 | 89.4 | 89.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.07 mg/l
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 8.07 | 8.07 mg/l |
| 5 Mar 2026, 12:50 | 10.9 | 10.9 mg/l |
| 19 Feb 2026, 11:57 | 12.3 | 12.3 mg/l |
| 28 Jan 2026, 09:48 | 12 | 12 mg/l |
| 11 Mar 2025, 10:37 | 11.7 | 11.7 mg/l |
| 10 Feb 2025, 11:38 | 12.3 | 12.3 mg/l |
| 22 Jan 2025, 12:15 | 11.9 | 11.9 mg/l |
| 9 Dec 2024, 13:37 | 11.1 | 11.1 mg/l |
| 18 Nov 2024, 11:12 | 10.8 | 10.8 mg/l |
| 24 Oct 2024, 10:01 | 10 | 10 mg/l |
| 19 Sep 2024, 12:56 | 9.19 | 9.19 mg/l |
| 29 Aug 2024, 11:49 | 9.46 | 9.46 mg/l |
| 24 Jul 2024, 11:58 | 8.4 | 8.4 mg/l |
| 14 May 2024, 10:56 | 9.21 | 9.21 mg/l |
| 16 Apr 2024, 11:24 | 11.5 | 11.5 mg/l |
| 20 Mar 2024, 12:29 | 10.7 | 10.7 mg/l |
| 29 Feb 2024, 09:40 | 11.4 | 11.4 mg/l |
| 30 Jan 2024, 10:16 | 10.9 | 10.9 mg/l |
| 20 Dec 2023, 11:44 | 10.8 | 10.8 mg/l |
| 29 Nov 2023, 11:27 | 11.9 | 11.9 mg/l |
| 16 Oct 2023, 12:07 | 9.79 | 9.79 mg/l |
Water temperature
code 0076 · °C
19.3 °C
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 19.3 | 19.3 °C |
| 5 Mar 2026, 12:50 | 10.6 | 10.6 °C |
| 19 Feb 2026, 11:57 | 5.5 | 5.5 °C |
| 28 Jan 2026, 09:48 | 5.7 | 5.7 °C |
| 11 Mar 2025, 10:37 | 9 | 9 °C |
| 10 Feb 2025, 11:38 | 6 | 6 °C |
| 22 Jan 2025, 12:15 | 6.1 | 6.1 °C |
| 9 Dec 2024, 13:37 | 7.3 | 7.3 °C |
| 18 Nov 2024, 11:12 | 9.3 | 9.3 °C |
| 24 Oct 2024, 10:01 | 12 | 12 °C |
| 19 Sep 2024, 12:56 | 16 | 16 °C |
| 29 Aug 2024, 11:49 | 18.5 | 18.5 °C |
| 24 Jul 2024, 11:58 | 20 | 20 °C |
| 14 May 2024, 10:56 | 16.3 | 16.3 °C |
| 16 Apr 2024, 11:24 | 11.8 | 11.8 °C |
| 20 Mar 2024, 12:29 | 11.9 | 11.9 °C |
| 29 Feb 2024, 09:40 | 8.7 | 8.7 °C |
| 30 Jan 2024, 10:16 | 8.4 | 8.4 °C |
| 20 Dec 2023, 11:44 | 9.1 | 9.1 °C |
| 29 Nov 2023, 11:27 | 7 | 7 °C |
| 16 Oct 2023, 12:07 | 11.2 | 11.2 °C |
pH
code 0061
7.86
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 7.86 | 7.86 |
| 5 Mar 2026, 12:50 | 7.94 | 7.94 |
| 19 Feb 2026, 11:57 | 8.2 | 8.2 |
| 28 Jan 2026, 09:48 | 8.01 | 8.01 |
| 11 Mar 2025, 10:37 | 8.24 | 8.24 |
| 10 Feb 2025, 11:38 | 7.99 | 7.99 |
| 22 Jan 2025, 12:15 | 8.01 | 8.01 |
| 9 Dec 2024, 13:37 | 7.92 | 7.92 |
| 18 Nov 2024, 11:12 | 7.95 | 7.95 |
| 24 Oct 2024, 10:01 | 7.65 | 7.65 |
| 19 Sep 2024, 12:56 | 7.86 | 7.86 |
| 29 Aug 2024, 11:49 | 7.97 | 7.97 |
| 24 Jul 2024, 11:58 | 7.69 | 7.69 |
| 14 May 2024, 10:56 | 8.03 | 8.03 |
| 16 Apr 2024, 11:24 | 8.1 | 8.1 |
| 20 Mar 2024, 12:29 | 8.04 | 8.04 |
| 29 Feb 2024, 09:40 | 8.07 | 8.07 |
| 30 Jan 2024, 10:16 | 7.83 | 7.83 |
| 20 Dec 2023, 11:44 | 7.88 | 7.88 |
| 29 Nov 2023, 11:27 | 7.97 | 7.97 |
| 16 Oct 2023, 12:07 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.05 mg/l
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 0.05 | 0.05 mg/l |
| 5 Mar 2026, 12:50 | 0.11 | 0.11 mg/l |
| 19 Feb 2026, 11:57 | 0.067 | 0.067 mg/l |
| 28 Jan 2026, 09:48 | 0.26 | 0.26 mg/l |
| 11 Mar 2025, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2025, 11:38 | 0.085 | 0.085 mg/l |
| 22 Jan 2025, 12:15 | 0.11 | 0.11 mg/l |
| 9 Dec 2024, 13:37 | 0.16 | 0.16 mg/l |
| 18 Nov 2024, 11:12 | 0.03 | 0.03 mg/l |
| 24 Oct 2024, 10:01 | 0.033 | 0.033 mg/l |
| 19 Sep 2024, 12:56 | 0.051 | 0.051 mg/l |
| 29 Aug 2024, 11:49 | 0.042 | 0.042 mg/l |
| 24 Jul 2024, 11:58 | 0.044 | 0.044 mg/l |
| 14 May 2024, 10:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2024, 11:24 | 0.034 | 0.034 mg/l |
| 20 Mar 2024, 12:29 | 0.075 | 0.075 mg/l |
| 29 Feb 2024, 09:40 | 0.11 | 0.11 mg/l |
| 30 Jan 2024, 10:16 | 0.18 | 0.18 mg/l |
| 20 Dec 2023, 11:44 | 0.13 | 0.13 mg/l |
| 29 Nov 2023, 11:27 | 0.063 | 0.063 mg/l |
| 16 Oct 2023, 12:07 | 0.075 | 0.075 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
12.9 mg/l
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 12.9 | 12.9 mg/l |
| 5 Mar 2026, 12:50 | 7.64 | 7.64 mg/l |
| 19 Feb 2026, 11:57 | 6.97 | 6.97 mg/l |
| 28 Jan 2026, 09:48 | 6.74 | 6.74 mg/l |
| 11 Mar 2025, 10:37 | 11 | 11 mg/l |
| 10 Feb 2025, 11:38 | 10.9 | 10.9 mg/l |
| 22 Jan 2025, 12:15 | 10.9 | 10.9 mg/l |
| 9 Dec 2024, 13:37 | 5.66 | 5.66 mg/l |
| 18 Nov 2024, 11:12 | 13.9 | 13.9 mg/l |
| 24 Oct 2024, 10:01 | 7.76 | 7.76 mg/l |
| 19 Sep 2024, 12:56 | 13 | 13 mg/l |
| 29 Aug 2024, 11:49 | 9.28 | 9.28 mg/l |
| 24 Jul 2024, 11:58 | 11 | 11 mg/l |
| 14 May 2024, 10:56 | 9.98 | 9.98 mg/l |
| 16 Apr 2024, 11:24 | 7.37 | 7.37 mg/l |
| 20 Mar 2024, 12:29 | 5.35 | 5.35 mg/l |
| 29 Feb 2024, 09:40 | 9.13 | 9.13 mg/l |
| 30 Jan 2024, 10:16 | 9.67 | 9.67 mg/l |
| 20 Dec 2023, 11:44 | 6.56 | 6.56 mg/l |
| 29 Nov 2023, 11:27 | 8.61 | 8.61 mg/l |
| 16 Oct 2023, 12:07 | 8.86 | 8.86 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.16 mg/l
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 0.16 | 0.16 mg/l |
| 5 Mar 2026, 12:50 | 0.14 | 0.14 mg/l |
| 19 Feb 2026, 11:57 | 0.12 | 0.12 mg/l |
| 28 Jan 2026, 09:48 | 0.2 | 0.2 mg/l |
| 11 Mar 2025, 10:37 | 0.12 | 0.12 mg/l |
| 10 Feb 2025, 11:38 | 0.11 | 0.11 mg/l |
| 22 Jan 2025, 12:15 | 0.16 | 0.16 mg/l |
| 9 Dec 2024, 13:37 | 0.12 | 0.12 mg/l |
| 18 Nov 2024, 11:12 | 0.12 | 0.12 mg/l |
| 24 Oct 2024, 10:01 | 0.13 | 0.13 mg/l |
| 19 Sep 2024, 12:56 | 0.13 | 0.13 mg/l |
| 29 Aug 2024, 11:49 | 0.13 | 0.13 mg/l |
| 24 Jul 2024, 11:58 | 0.16 | 0.16 mg/l |
| 14 May 2024, 10:56 | 0.087 | 0.087 mg/l |
| 16 Apr 2024, 11:24 | 0.12 | 0.12 mg/l |
| 20 Mar 2024, 12:29 | 0.11 | 0.11 mg/l |
| 29 Feb 2024, 09:40 | 0.12 | 0.12 mg/l |
| 30 Jan 2024, 10:16 | 0.15 | 0.15 mg/l |
| 20 Dec 2023, 11:44 | 0.12 | 0.12 mg/l |
| 29 Nov 2023, 11:27 | 0.18 | 0.18 mg/l |
| 16 Oct 2023, 12:07 | 0.2 | 0.2 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
984 µS/cm
Sampled 29 May 2026, 4 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 May 2026, 11:20 | 984 | 984 µS/cm |
| 5 Mar 2026, 12:50 | 716 | 716 µS/cm |
| 19 Feb 2026, 11:57 | 644 | 644 µS/cm |
| 28 Jan 2026, 09:48 | 548 | 548 µS/cm |
| 11 Mar 2025, 10:37 | 903 | 903 µS/cm |
| 10 Feb 2025, 11:38 | 898 | 898 µS/cm |
| 22 Jan 2025, 12:15 | 892 | 892 µS/cm |
| 9 Dec 2024, 13:37 | 528 | 528 µS/cm |
| 18 Nov 2024, 11:12 | 932 | 932 µS/cm |
| 24 Oct 2024, 10:01 | 670 | 670 µS/cm |
| 19 Sep 2024, 12:56 | 950 | 950 µS/cm |
| 29 Aug 2024, 11:49 | 871 | 871 µS/cm |
| 24 Jul 2024, 11:58 | 828 | 828 µS/cm |
| 14 May 2024, 10:56 | 960 | 960 µS/cm |
| 16 Apr 2024, 11:24 | 828 | 828 µS/cm |
| 20 Mar 2024, 12:29 | 617 | 617 µS/cm |
| 29 Feb 2024, 09:40 | 785 | 785 µS/cm |
| 30 Jan 2024, 10:16 | 874 | 874 µS/cm |
| 20 Dec 2023, 11:44 | 692 | 692 µS/cm |
| 29 Nov 2023, 11:27 | 819 | 819 µS/cm |
| 16 Oct 2023, 12:07 | 704 | 704 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 | 21 | Oct 2023 – May 2026 | 87.7% 29 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Oct 2023 – May 2026 | 8.07 mg/l 29 May 2026 |
| Temperature of Water 0076 | River water | 21 | Oct 2023 – May 2026 | 19.3 °C 29 May 2026 |
| pH 0061 | River water | 21 | Oct 2023 – May 2026 | 7.86 29 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 21 | Oct 2023 – May 2026 | 0.05 mg/l 29 May 2026 |
| Nitrate as N 0117 | River water | 21 | Oct 2023 – May 2026 | 12.9 mg/l 29 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – May 2026 | 0.16 mg/l 29 May 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2023 – May 2026 | 984 µS/cm 29 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Jul 2024 – Jul 2024 | below 0.004 µg/l 24 Jul 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 24 Jul 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Jul 2024 – Jul 2024 | 0.0085 µg/l 24 Jul 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – May 2026 | 160 mg/l 29 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Oct 2023 – May 2026 | 0.00131 mg/l 29 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – May 2026 | 1.2 mg/l 29 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| Nitrite as N 0118 | River water | 21 | Oct 2023 – May 2026 | 0.068 mg/l 29 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Oct 2023 – May 2026 | 13 mg/l 29 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Jul 2024 – Jul 2024 | 0.00065 µg/l 24 Jul 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Jul 2024 – Jul 2024 | 0.0043 µg/l 24 Jul 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jul 2024 – Jul 2024 | 0.005 µg/l 24 Jul 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Jul 2024 – Jul 2024 | 0.00088 µg/l 24 Jul 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 24 Jul 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Jul 2024 – Jul 2024 | 0.003 µg/l 24 Jul 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Jul 2024 – Jul 2024 | 0.00072 µg/l 24 Jul 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Jul 2024 – Jul 2024 | 0.0037 µg/l 24 Jul 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Jul 2024 – Jul 2024 | 0.0068 µg/l 24 Jul 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Jul 2024 – Jul 2024 | below 0.0005 µg/l 24 Jul 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Jul 2024 – Jul 2024 | below 0.001 µg/l 24 Jul 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jul 2024 – Jul 2024 | 0.0026 µg/l 24 Jul 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Jul 2024 – Jul 2024 | 0.0037 µg/l 24 Jul 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Jul 2024 – Jul 2024 | 0.0034 µg/l 24 Jul 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Jul 2024 – Jul 2024 | 0.00055 µg/l 24 Jul 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Jul 2024 – Jul 2024 | 0.0076 µg/l 24 Jul 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Jul 2024 – Jul 2024 | below 0.006 µg/l 24 Jul 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Jul 2024 – Jul 2024 | below 0.005 µg/l 24 Jul 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Jul 2024 – Jul 2024 | below 0.004 µg/l 24 Jul 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Jul 2024 – Jul 2024 | below 0.002 µg/l 24 Jul 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.