River Fowey at Restormel
EA name: RIVER FOWEY AT RESTORMEL
Environment Agency sampling point SW-81520166 · 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
- 11 Aug 2026, 09:5651 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 37 since 11 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (UK govt policy - not GQA or RE)
- Where
- National Grid 210800, 61300As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Fowey
- River, by the map
- River FoweyPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- RESTORMEL 1.6 km along the riverRestormel On the River Fowey · 1.6 km along the river
- Why it was sampled
- Monitoring (UK govt policy - not GQA or RE) (29 samples)
Environmental monitoring statutory (EU directives) (7 samples)
Monitoring (national agency policy) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.1%
Sampled 21 Apr 2026, 5 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Apr 2026, 10:08 | 101.1 | 101.1% |
| 1 Mar 2024, 13:41 | 100.1 | 100.1% |
| 14 Feb 2024, 10:33 | 98.6 | 98.6% |
| 8 Feb 2024, 13:10 | 100.4 | 100.4% |
| 8 Jan 2024, 10:32 | 97.5 | 97.5% |
| 11 Dec 2023, 10:23 | 97.8 | 97.8% |
| 9 Nov 2023, 15:36 | 99.4 | 99.4% |
| 11 Oct 2023, 09:34 | 98.1 | 98.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.6 mg/l
Sampled 21 Apr 2026, 5 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Apr 2026, 10:08 | 11.6 | 11.6 mg/l |
| 1 Mar 2024, 13:41 | 11.8 | 11.8 mg/l |
| 14 Feb 2024, 10:33 | 10.9 | 10.9 mg/l |
| 8 Feb 2024, 13:10 | 11.2 | 11.2 mg/l |
| 8 Jan 2024, 10:32 | 11.8 | 11.8 mg/l |
| 11 Dec 2023, 10:23 | 11 | 11 mg/l |
| 9 Nov 2023, 15:36 | 11.1 | 11.1 mg/l |
| 11 Oct 2023, 09:34 | 10.1 | 10.1 mg/l |
Water temperature
code 0076 · °C
9.2 °C
Sampled 21 Apr 2026, 5 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Apr 2026, 10:08 | 9.2 | 9.2 °C |
| 1 Mar 2024, 13:41 | 8.2 | 8.2 °C |
| 14 Feb 2024, 10:33 | 10.8 | 10.8 °C |
| 8 Feb 2024, 13:10 | 10.6 | 10.6 °C |
| 8 Jan 2024, 10:32 | 7.1 | 7.1 °C |
| 11 Dec 2023, 10:23 | 10.2 | 10.2 °C |
| 9 Nov 2023, 15:36 | 10.4 | 10.4 °C |
| 11 Oct 2023, 09:34 | 14.1 | 14.1 °C |
pH
code 0061
7.27
Sampled 11 Aug 2026, 51 days ago · 37 results banked
Every result (37)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Aug 2026, 09:56 | 7.27 | 7.27 |
| 14 Jul 2026, 13:32 | 7.05 | 7.05 |
| 5 Jun 2026, 15:54 | 7.06 | 7.06 |
| 5 May 2026, 15:12 | 7.2 | 7.2 |
| 21 Apr 2026, 10:08 | 7.25 | 7.25 |
| 21 Apr 2026, 09:59 | 7.3 | 7.3 |
| 3 Mar 2026, 12:05 | 7.21 | 7.21 |
| 10 Feb 2026, 13:42 | 6.97 | 6.97 |
| 19 Jan 2026, 13:18 | 7.16 | 7.16 |
| 11 Dec 2025, 11:46 | 7.13 | 7.13 |
| 17 Nov 2025, 13:03 | 7.16 | 7.16 |
| 9 Oct 2025, 08:37 | 7.02 | 7.02 |
| 15 Sep 2025, 12:51 | 6.97 | 6.97 |
| 5 Aug 2025, 11:59 | 7.42 | 7.42 |
| 8 Jul 2025, 14:45 | 7.35 | 7.35 |
| 27 Jun 2025, 11:48 | 7.21 | 7.21 |
| 6 May 2025, 10:23 | 7.31 | 7.31 |
| 1 Apr 2025, 11:48 | 7.3 | 7.3 |
| 10 Mar 2025, 13:50 | 7.09 | 7.09 |
| 4 Feb 2025, 10:08 | 7.29 | 7.29 |
| 6 Jan 2025, 12:02 | 7.02 | 7.02 |
| 3 Dec 2024, 13:11 | 7.22 | 7.22 |
| 5 Nov 2024, 15:05 | 7.19 | 7.19 |
| 7 Oct 2024, 13:48 | 6.98 | 6.98 |
| 2 Sep 2024, 13:49 | 7.12 | 7.12 |
| 12 Aug 2024, 14:33 | 7.05 | 7.05 |
| 11 Jul 2024, 11:30 | 7.21 | 7.21 |
| 4 Jun 2024, 13:48 | 6.98 | 6.98 |
| 10 May 2024, 10:38 | 7.33 | 7.33 |
| 3 Apr 2024, 11:34 | 7.07 | 7.07 |
| 1 Mar 2024, 13:41 | 6.96 | 6.96 |
| 14 Feb 2024, 10:33 | 6.7 | 6.7 |
| 8 Feb 2024, 13:10 | 7.09 | 7.09 |
| 8 Jan 2024, 10:32 | 7.07 | 7.07 |
| 11 Dec 2023, 10:23 | 7.01 | 7.01 |
| 9 Nov 2023, 15:36 | 6.88 | 6.88 |
| 11 Oct 2023, 09:34 | 7.46 | 7.46 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 11 Aug 2026, 51 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Aug 2026, 09:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jul 2026, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2026, 15:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 May 2026, 15:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Apr 2026, 09:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2026, 12:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 13:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jan 2026, 13:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Dec 2025, 11:46 | 0.048 | 0.048 mg/l |
| 17 Nov 2025, 13:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2025, 08:37 | 0.081 | 0.081 mg/l |
| 1 Apr 2025, 11:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2025, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2025, 10:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2025, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2024, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2024, 15:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Oct 2024, 13:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2024, 13:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2024, 14:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jul 2024, 11:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2024, 13:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Mar 2024, 13:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2024, 10:33 | 0.015 | 0.015 mg/l |
| 8 Feb 2024, 13:10 | 0.021 | 0.021 mg/l |
| 8 Jan 2024, 10:32 | 0.007 | 0.007 mg/l |
| 11 Dec 2023, 10:23 | 0.0061 | 0.0061 mg/l |
| 9 Nov 2023, 15:36 | 0.01 | 0.01 mg/l |
| 11 Oct 2023, 09:34 | 0.0021 | 0.0021 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.626 mg/l
Sampled 11 Aug 2026, 51 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Aug 2026, 09:56 | 0.626 | 0.626 mg/l |
| 14 Jul 2026, 13:32 | 0.786 | 0.786 mg/l |
| 5 Jun 2026, 15:54 | 0.876 | 0.876 mg/l |
| 5 May 2026, 15:12 | 1.1 | 1.1 mg/l |
| 21 Apr 2026, 09:59 | 1.1 | 1.1 mg/l |
| 3 Mar 2026, 12:05 | 1.6 | 1.6 mg/l |
| 10 Feb 2026, 13:42 | 1.8 | 1.8 mg/l |
| 19 Jan 2026, 13:18 | 2 | 2 mg/l |
| 11 Dec 2025, 11:46 | 2.1 | 2.1 mg/l |
| 17 Nov 2025, 13:03 | 2.1 | 2.1 mg/l |
| 9 Oct 2025, 08:37 | 1.4 | 1.4 mg/l |
| 1 Apr 2025, 11:48 | 1.3 | 1.3 mg/l |
| 10 Mar 2025, 13:50 | 1.8 | 1.8 mg/l |
| 4 Feb 2025, 10:08 | 2 | 2 mg/l |
| 6 Jan 2025, 12:02 | 1.7 | 1.7 mg/l |
| 3 Dec 2024, 13:11 | 2 | 2 mg/l |
| 5 Nov 2024, 15:05 | 1.6 | 1.6 mg/l |
| 7 Oct 2024, 13:48 | 1.2 | 1.2 mg/l |
| 2 Sep 2024, 13:49 | 0.706 | 0.706 mg/l |
| 12 Aug 2024, 14:33 | 0.916 | 0.916 mg/l |
| 11 Jul 2024, 11:30 | 0.946 | 0.946 mg/l |
| 4 Jun 2024, 13:48 | 1.3 | 1.3 mg/l |
| 1 Mar 2024, 13:41 | 1.5 | 1.5 mg/l |
| 14 Feb 2024, 10:33 | 1.7 | 1.7 mg/l |
| 8 Feb 2024, 13:10 | 1.4 | 1.4 mg/l |
| 8 Jan 2024, 10:32 | 2.1 | 2.1 mg/l |
| 11 Dec 2023, 10:23 | 2.1 | 2.1 mg/l |
| 9 Nov 2023, 15:36 | 2 | 2 mg/l |
| 11 Oct 2023, 09:34 | 1.5 | 1.5 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.019 mg/l
Sampled 11 Aug 2026, 51 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Aug 2026, 09:56 | 0.019 | 0.019 mg/l |
| 14 Jul 2026, 13:32 | 0.011 | 0.011 mg/l |
| 5 Jun 2026, 15:54 | 0.015 | 0.015 mg/l |
| 5 May 2026, 15:12 | 0.033 | 0.033 mg/l |
| 21 Apr 2026, 09:59 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Mar 2026, 12:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Feb 2026, 13:42 | 0.017 | 0.017 mg/l |
| 19 Jan 2026, 13:18 | 0.018 | 0.018 mg/l |
| 11 Dec 2025, 11:46 | 0.012 | 0.012 mg/l |
| 17 Nov 2025, 13:03 | 0.015 | 0.015 mg/l |
| 9 Oct 2025, 08:37 | 0.06 | 0.06 mg/l |
| 1 Apr 2025, 11:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Mar 2025, 13:50 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Feb 2025, 10:08 | 0.019 | 0.019 mg/l |
| 6 Jan 2025, 12:02 | 0.011 | 0.011 mg/l |
| 3 Dec 2024, 13:11 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Nov 2024, 15:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Oct 2024, 13:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Sep 2024, 13:49 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Aug 2024, 14:33 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Jul 2024, 11:30 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Jun 2024, 13:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 1 Mar 2024, 13:41 | 0.012 | 0.012 mg/l |
| 14 Feb 2024, 10:33 | 0.013 | 0.013 mg/l |
| 8 Feb 2024, 13:10 | 0.014 | 0.014 mg/l |
| 8 Jan 2024, 10:32 | 0.015 | 0.015 mg/l |
| 11 Dec 2023, 10:23 | 0.011 | 0.011 mg/l |
| 9 Nov 2023, 15:36 | 0.013 | 0.013 mg/l |
| 11 Oct 2023, 09:34 | 0.0073 | 0.0073 mg/l |
Turbidity
code 6396 · NTU
6.6 NTU
Sampled 14 Feb 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Feb 2024, 10:33 | 6.6 | 6.6 NTU |
| 8 Feb 2024, 13:10 | 9 | 9 NTU |
| 8 Jan 2024, 10:32 | 2.2 | 2.2 NTU |
| 11 Dec 2023, 10:23 | 3.6 | 3.6 NTU |
| 9 Nov 2023, 15:36 | 3.7 | 3.7 NTU |
| 11 Oct 2023, 09:34 | <1 | below 1 NTU (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
100 µS/cm
Sampled 21 Apr 2026, 5 months ago · 8 results banked
Every result (8)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Apr 2026, 10:08 | 100 | 100 µS/cm |
| 1 Mar 2024, 13:41 | 113 | 113 µS/cm |
| 14 Feb 2024, 10:33 | 110 | 110 µS/cm |
| 8 Feb 2024, 13:10 | 94 | 94 µS/cm |
| 8 Jan 2024, 10:32 | 117 | 117 µS/cm |
| 11 Dec 2023, 10:23 | 120 | 120 µS/cm |
| 9 Nov 2023, 15:36 | 120 | 120 µS/cm |
| 11 Oct 2023, 09:34 | 116 | 116 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
220 per 100 ml
Sampled 11 Dec 2023, 2.8 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Dec 2023, 10:23 | 220 | 220 per 100 ml |
| 9 Nov 2023, 15:36 | 1500 | 1500 per 100 ml |
| 11 Oct 2023, 09:34 | 350 | 350 per 100 ml |
Everything measured here
113 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 113 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 8 | Oct 2023 – Apr 2026 | 101.1% 21 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 8 | Oct 2023 – Apr 2026 | 11.6 mg/l 21 Apr 2026 |
| Temperature of Water 0076 | River water | 8 | Oct 2023 – Apr 2026 | 9.2 °C 21 Apr 2026 |
| pH 0061 | River water | 37 | Oct 2023 – Aug 2026 | 7.27 11 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – Aug 2026 | below 0.03 mg/l 11 Aug 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – Aug 2026 | 0.626 mg/l 11 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Aug 2026 | 0.019 mg/l 11 Aug 2026 |
| Turbidity 6396 | River water | 6 | Oct 2023 – Feb 2024 | 6.6 NTU 14 Feb 2024 |
| Conductivity at 25 C 0077 | River water | 8 | Oct 2023 – Apr 2026 | 100 µS/cm 21 Apr 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 3 | Oct 2023 – Dec 2023 | 220 per 100 ml 11 Dec 2023 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 2 | Oct 2025 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 2 | Oct 2025 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 2 | Oct 2025 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 17 | Oct 2023 – Jan 2026 | below 0.004 µg/l 19 Jan 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 2 | Oct 2025 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 2 | Oct 2025 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 2 | Oct 2025 – Jan 2026 | below 0.004 µg/l 19 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 2 | Oct 2025 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 2 | Oct 2025 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 2 | Oct 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 2 | Oct 2025 – Jan 2026 | below 0.004 µg/l 19 Jan 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 2 | Oct 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 2 | Oct 2025 – Jan 2026 | below 0.004 µg/l 19 Jan 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 2 | Oct 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 7 | Oct 2023 – Mar 2024 | 9 mg/l 1 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 7 | Oct 2023 – Mar 2024 | below 0.00004 mg/l 1 Mar 2024 |
| Cadmium 0108 | River water | 36 | Oct 2023 – Aug 2026 | 0.015 µg/l 11 Aug 2026 |
| Calcium 0241 | River water | 13 | Oct 2023 – Jul 2026 | 4.2 mg/l 14 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 36 | Oct 2023 – Aug 2026 | 3.9 mg/l 11 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 36 | Oct 2023 – Aug 2026 | 2.8 mg/l 11 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 6 | Oct 2023 – Feb 2024 | 2.2 µg/l 14 Feb 2024 |
| Copper 6452 | River water | 36 | Oct 2023 – Aug 2026 | 1.5 µg/l 11 Aug 2026 |
| Copper : BLM Bioavailable 4821 | River water | 13 | Oct 2023 – Jul 2026 | 0.16 µg/l 14 Jul 2026 |
| Copper, Dissolved 6450 | River water | 13 | Oct 2023 – Jul 2026 | 1.6 µg/l 14 Jul 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 3 | Oct 2023 – Dec 2023 | 110 colony forming units / 100ml 11 Dec 2023 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 3 | Oct 2023 – Dec 2023 | 120 colony forming units / 100ml 11 Dec 2023 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 5 | Apr 2026 – Aug 2026 | 1 text result 11 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 13 | Oct 2023 – Jul 2026 | 18 mg/l 14 Jul 2026 |
| HCH -gamma :- {Lindane} 0499 | River water | 35 | Oct 2023 – Aug 2026 | below 0.003 µg/l 11 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 2 | Oct 2025 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Iron, Dissolved 6460 | River water | 13 | Oct 2023 – Jul 2026 | 91 µg/l 14 Jul 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 1 | Jun 2026 – Jun 2026 | 1 text result 5 Jun 2026 |
| Lead 0050 | River water | 36 | Oct 2023 – Aug 2026 | 0.14 µg/l 11 Aug 2026 |
| Lead : BLM Bioavailable 3377 | River water | 36 | Oct 2023 – Aug 2026 | 0.02 µg/l 11 Aug 2026 |
| Lead, Dissolved 0052 | River water | 36 | Oct 2023 – Aug 2026 | below 0.1 µg/l 11 Aug 2026 |
| Magnesium 0237 | River water | 13 | Oct 2023 – Jul 2026 | 1.7 mg/l 14 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 13 | Oct 2023 – Jul 2026 | 1.7 mg/l 14 Jul 2026 |
| Mercury 0105 | River water | 36 | Oct 2023 – Aug 2026 | below 0.01 µg/l 11 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 17 | Oct 2023 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 17 | Oct 2023 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| Nickel 6462 | River water | 31 | Feb 2024 – Aug 2026 | below 0.5 µg/l 11 Aug 2026 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – Aug 2026 | below 0.004 mg/l 11 Aug 2026 |
| Nitrogen, Total as N 9686 | River water | 29 | Oct 2023 – Aug 2026 | 0.88 mg/l 11 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – Aug 2026 | 0.63 mg/l 11 Aug 2026 |
| PCB - 028 9768 | River water | 34 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 052 9769 | River water | 35 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 101 9770 | River water | 35 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 118 9771 | River water | 35 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 138 9772 | River water | 35 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 153 9773 | River water | 35 | Oct 2023 – Aug 2026 | below 0.001 µg/l 11 Aug 2026 |
| PCB - 180 9774 | River water | 35 | Oct 2023 – Aug 2026 | below 0.002 µg/l 11 Aug 2026 |
| PCB : Total 0753 | River water | 34 | Oct 2023 – Aug 2026 | below 0.008 µg/l 11 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 16 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorobutanoic acid 2995 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorodecanoic acid 8892 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 16 | Oct 2023 – Jan 2026 | below 0.005 µg/l 19 Jan 2026 |
| Perfluorododecanoic acid 8894 | River water | 17 | Oct 2023 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoroheptanoic acid 8889 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 1 | Jan 2026 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorohexanoic acid 8888 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorononanoic acid 8891 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 17 | Oct 2023 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 2 | Oct 2025 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorooctanoic acid 8890 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 17 | Oct 2023 – Jan 2026 | below 0.0005 µg/l 19 Jan 2026 |
| Perfluoropentanoic acid 8887 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 17 | Oct 2023 – Jan 2026 | below 0.006 µg/l 19 Jan 2026 |
| Perfluorotridecanoic acid 2955 | River water | 16 | Oct 2023 – Jan 2026 | below 0.002 µg/l 19 Jan 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 17 | Oct 2023 – Jan 2026 | below 0.004 µg/l 19 Jan 2026 |
| Perfluoroundecanoic acid 8893 | River water | 17 | Oct 2023 – Jan 2026 | below 0.001 µg/l 19 Jan 2026 |
| Phosphorus, Total as P 0348 | River water | 29 | Oct 2023 – Aug 2026 | 0.022 mg/l 11 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 31 | Oct 2023 – Aug 2026 | below 3 mg/l 11 Aug 2026 |
| Trifluoroacetic acid 2872 | River water | 2 | Oct 2025 – Jan 2026 | 0.4 µg/l 19 Jan 2026 |
| Zinc 6455 | River water | 36 | Oct 2023 – Aug 2026 | 3 µg/l 11 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 13 | Oct 2023 – Jul 2026 | 3.6 µg/l 14 Jul 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.