Crooked Bank
EA name: CROOKED BANK (also listed as “CROOKED BANK UPSTREAM WISBECH”)
Environment Agency sampling point AN-CROOKEDB · 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
- 19 Aug 2026, 10:3243 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 25 since 2 May 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 543536, 305903As published, to the nearest 1 m. Open in a map
- River, by its own name
- Crooked Bank
- River, by the map
- Not placedNearest line is 495 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Planned investigation (local monitoring) (24 samples)
Monitoring (national agency policy) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
4.8%
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 4.8 | 4.8% |
| 15 Jul 2026, 07:57 | 16.1 | 16.1% |
| 19 Jun 2026, 10:03 | 34.8 | 34.8% |
| 27 May 2026, 09:51 | 39.9 | 39.9% |
| 22 Apr 2026, 10:55 | 72.7 | 72.7% |
| 13 Feb 2026, 15:07 | 79.3 | 79.3% |
| 13 Jan 2026, 08:28 | 71.6 | 71.6% |
| 8 Dec 2025, 14:26 | 61.5 | 61.5% |
| 26 Nov 2025, 10:10 | 61.2 | 61.2% |
| 27 Oct 2025, 13:12 | 42.6 | 42.6% |
| 1 Apr 2025, 12:54 | 111.8 | 111.8% |
| 11 Mar 2025, 15:49 | 111.7 | 111.7% |
| 20 Feb 2025, 10:22 | 79.3 | 79.3% |
| 14 Jan 2025, 14:01 | 75 | 75% |
| 9 Dec 2024, 11:29 | 69.2 | 69.2% |
| 21 Oct 2024, 11:13 | 29.7 | 29.7% |
| 17 Sep 2024, 13:38 | 28.1 | 28.1% |
| 9 Aug 2024, 09:21 | 50.9 | 50.9% |
| 9 Jul 2024, 13:11 | 21.6 | 21.6% |
| 10 Jun 2024, 12:41 | 61.6 | 61.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
0.45 mg/l
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 0.45 | 0.45 mg/l |
| 15 Jul 2026, 07:57 | 1.49 | 1.49 mg/l |
| 19 Jun 2026, 10:03 | 3.16 | 3.16 mg/l |
| 27 May 2026, 09:51 | 3.56 | 3.56 mg/l |
| 22 Apr 2026, 10:55 | 7.75 | 7.75 mg/l |
| 13 Feb 2026, 15:07 | 9.76 | 9.76 mg/l |
| 13 Jan 2026, 08:28 | 8.86 | 8.86 mg/l |
| 8 Dec 2025, 14:26 | 7.08 | 7.08 mg/l |
| 26 Nov 2025, 10:10 | 8.01 | 8.01 mg/l |
| 27 Oct 2025, 13:12 | 5.03 | 5.03 mg/l |
| 1 Apr 2025, 12:54 | 12.3 | 12.3 mg/l |
| 11 Mar 2025, 15:49 | 13.2 | 13.2 mg/l |
| 20 Feb 2025, 10:22 | 9.83 | 9.83 mg/l |
| 14 Jan 2025, 14:01 | 9.49 | 9.49 mg/l |
| 9 Dec 2024, 11:29 | 8.24 | 8.24 mg/l |
| 21 Oct 2024, 11:13 | 3.22 | 3.22 mg/l |
| 17 Sep 2024, 13:38 | 2.93 | 2.93 mg/l |
| 9 Aug 2024, 09:21 | 4.85 | 4.85 mg/l |
| 9 Jul 2024, 13:11 | 2.09 | 2.09 mg/l |
| 10 Jun 2024, 12:41 | 6.21 | 6.21 mg/l |
Water temperature
code 0076 · °C
18.4 °C
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 18.4 | 18.4 °C |
| 15 Jul 2026, 07:57 | 19.1 | 19.1 °C |
| 19 Jun 2026, 10:03 | 19.9 | 19.9 °C |
| 27 May 2026, 09:51 | 20.8 | 20.8 °C |
| 22 Apr 2026, 10:55 | 12.4 | 12.4 °C |
| 13 Feb 2026, 15:07 | 6.4 | 6.4 °C |
| 13 Jan 2026, 08:28 | 6.2 | 6.2 °C |
| 8 Dec 2025, 14:26 | 9.1 | 9.1 °C |
| 26 Nov 2025, 10:10 | 4 | 4 °C |
| 27 Oct 2025, 13:12 | 8.1 | 8.1 °C |
| 1 Apr 2025, 12:54 | 11.1 | 11.1 °C |
| 11 Mar 2025, 15:49 | 8.1 | 8.1 °C |
| 20 Feb 2025, 10:22 | 6.1 | 6.1 °C |
| 14 Jan 2025, 14:01 | 5.3 | 5.3 °C |
| 9 Dec 2024, 11:29 | 7.7 | 7.7 °C |
| 21 Oct 2024, 11:13 | 11.7 | 11.7 °C |
| 17 Sep 2024, 13:38 | 13.3 | 13.3 °C |
| 9 Aug 2024, 09:21 | 17.6 | 17.6 °C |
| 9 Jul 2024, 13:11 | 16.9 | 16.9 °C |
| 10 Jun 2024, 12:41 | 14.9 | 14.9 °C |
pH
code 0061
7.33
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 7.33 | 7.33 |
| 15 Jul 2026, 07:57 | 7.56 | 7.56 |
| 19 Jun 2026, 10:03 | 7.6 | 7.6 |
| 27 May 2026, 09:51 | 7.67 | 7.67 |
| 22 Apr 2026, 10:55 | 7.86 | 7.86 |
| 13 Feb 2026, 15:07 | 7.47 | 7.47 |
| 13 Jan 2026, 08:28 | 7.53 | 7.53 |
| 8 Dec 2025, 14:26 | 7.26 | 7.26 |
| 26 Nov 2025, 10:10 | 7.32 | 7.32 |
| 27 Oct 2025, 13:12 | 7.51 | 7.51 |
| 1 Apr 2025, 12:54 | 7.96 | 7.96 |
| 11 Mar 2025, 15:49 | 7.88 | 7.88 |
| 20 Feb 2025, 10:22 | 7.68 | 7.68 |
| 14 Jan 2025, 14:01 | 7.61 | 7.61 |
| 9 Dec 2024, 11:29 | 7.47 | 7.47 |
| 21 Oct 2024, 11:13 | 7.35 | 7.35 |
| 17 Sep 2024, 13:38 | 7.32 | 7.32 |
| 9 Aug 2024, 09:21 | 7.57 | 7.57 |
| 9 Jul 2024, 13:11 | 7.37 | 7.37 |
| 10 Jun 2024, 12:41 | 7.68 | 7.68 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
1.3 mg/l
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 1.3 | 1.3 mg/l |
| 15 Jul 2026, 07:57 | 0.12 | 0.12 mg/l |
| 19 Jun 2026, 10:03 | 1.5 | 1.5 mg/l |
| 27 May 2026, 09:51 | 0.55 | 0.55 mg/l |
| 22 Apr 2026, 10:55 | 0.38 | 0.38 mg/l |
| 13 Feb 2026, 15:07 | 0.14 | 0.14 mg/l |
| 13 Jan 2026, 08:28 | 0.28 | 0.28 mg/l |
| 8 Dec 2025, 14:26 | 0.36 | 0.36 mg/l |
| 26 Nov 2025, 10:10 | 0.63 | 0.63 mg/l |
| 27 Oct 2025, 13:12 | 1.9 | 1.9 mg/l |
| 1 Apr 2025, 12:54 | 0.039 | 0.039 mg/l |
| 11 Mar 2025, 15:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2025, 10:22 | 0.076 | 0.076 mg/l |
| 14 Jan 2025, 14:01 | 0.092 | 0.092 mg/l |
| 9 Dec 2024, 11:29 | 0.064 | 0.064 mg/l |
| 21 Oct 2024, 11:13 | 0.31 | 0.31 mg/l |
| 17 Sep 2024, 13:38 | 0.92 | 0.92 mg/l |
| 9 Aug 2024, 09:21 | 0.23 | 0.23 mg/l |
| 9 Jul 2024, 13:11 | 0.12 | 0.12 mg/l |
| 10 Jun 2024, 12:41 | 0.11 | 0.11 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | <0.196 | below 0.196 mg/l (not detected above this) |
| 15 Jul 2026, 07:57 | <0.196 | below 0.196 mg/l (not detected above this) |
| 19 Jun 2026, 10:03 | 0.77 | 0.77 mg/l |
| 27 May 2026, 09:51 | 0.178 | 0.178 mg/l |
| 22 Apr 2026, 10:55 | 2.24 | 2.24 mg/l |
| 13 Feb 2026, 15:07 | 6.07 | 6.07 mg/l |
| 13 Jan 2026, 08:28 | 6.06 | 6.06 mg/l |
| 8 Dec 2025, 14:26 | 5.92 | 5.92 mg/l |
| 26 Nov 2025, 10:10 | 4.3 | 4.3 mg/l |
| 27 Oct 2025, 13:12 | 1.76 | 1.76 mg/l |
| 1 Apr 2025, 12:54 | 1.39 | 1.39 mg/l |
| 11 Mar 2025, 15:49 | 1.88 | 1.88 mg/l |
| 20 Feb 2025, 10:22 | 2.69 | 2.69 mg/l |
| 14 Jan 2025, 14:01 | 4.08 | 4.08 mg/l |
| 9 Dec 2024, 11:29 | 5.78 | 5.78 mg/l |
| 21 Oct 2024, 11:13 | 1.23 | 1.23 mg/l |
| 17 Sep 2024, 13:38 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Aug 2024, 09:21 | <0.196 | below 0.196 mg/l (not detected above this) |
| 9 Jul 2024, 13:11 | 0.288 | 0.288 mg/l |
| 10 Jun 2024, 12:41 | 0.174 | 0.174 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
6.6 mg/l
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 6.6 | 6.6 mg/l |
| 15 Jul 2026, 07:57 | 1.9 | 1.9 mg/l |
| 19 Jun 2026, 10:03 | 0.53 | 0.53 mg/l |
| 27 May 2026, 09:51 | 0.12 | 0.12 mg/l |
| 22 Apr 2026, 10:55 | 0.2 | 0.2 mg/l |
| 13 Feb 2026, 15:07 | 0.12 | 0.12 mg/l |
| 13 Jan 2026, 08:28 | 0.14 | 0.14 mg/l |
| 8 Dec 2025, 14:26 | 0.18 | 0.18 mg/l |
| 26 Nov 2025, 10:10 | 0.19 | 0.19 mg/l |
| 27 Oct 2025, 13:12 | 0.38 | 0.38 mg/l |
| 1 Apr 2025, 12:54 | 0.084 | 0.084 mg/l |
| 11 Mar 2025, 15:49 | 0.048 | 0.048 mg/l |
| 20 Feb 2025, 10:22 | 0.089 | 0.089 mg/l |
| 14 Jan 2025, 14:01 | 0.096 | 0.096 mg/l |
| 9 Dec 2024, 11:29 | 0.058 | 0.058 mg/l |
| 21 Oct 2024, 11:13 | 0.27 | 0.27 mg/l |
| 17 Sep 2024, 13:38 | 0.67 | 0.67 mg/l |
| 9 Aug 2024, 09:21 | 1.3 | 1.3 mg/l |
| 9 Jul 2024, 13:11 | 0.32 | 0.32 mg/l |
| 10 Jun 2024, 12:41 | 0.1 | 0.1 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
4076 µS/cm
Sampled 19 Aug 2026, 43 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 4076 | 4076 µS/cm |
| 15 Jul 2026, 07:57 | 4861 | 4861 µS/cm |
| 19 Jun 2026, 10:03 | 3135 | 3135 µS/cm |
| 27 May 2026, 09:51 | 6014 | 6014 µS/cm |
| 22 Apr 2026, 10:55 | 4204 | 4204 µS/cm |
| 13 Feb 2026, 15:07 | 2803 | 2803 µS/cm |
| 13 Jan 2026, 08:28 | 3315 | 3315 µS/cm |
| 8 Dec 2025, 14:26 | 2570 | 2570 µS/cm |
| 26 Nov 2025, 10:10 | 2475 | 2475 µS/cm |
| 27 Oct 2025, 13:12 | 1665 | 1665 µS/cm |
| 1 Apr 2025, 12:54 | 4566 | 4566 µS/cm |
| 11 Mar 2025, 15:49 | 3640 | 3640 µS/cm |
| 20 Feb 2025, 10:22 | 3681 | 3681 µS/cm |
| 14 Jan 2025, 14:01 | 3237 | 3237 µS/cm |
| 9 Dec 2024, 11:29 | 1987 | 1987 µS/cm |
| 21 Oct 2024, 11:13 | 2666 | 2666 µS/cm |
| 17 Sep 2024, 13:38 | 2452 | 2452 µS/cm |
| 9 Aug 2024, 09:21 | 5394 | 5394 µS/cm |
| 9 Jul 2024, 13:11 | 1564 | 1564 µS/cm |
| 10 Jun 2024, 12:41 | 4231 | 4231 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
1500 per 100 ml
Sampled 19 Aug 2026, 43 days ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 10:32 | 1500 | 1500 per 100 ml |
| 15 Jul 2026, 07:57 | 63 | 63 per 100 ml |
| 19 Jun 2026, 10:03 | 510 | 510 per 100 ml |
| 27 May 2026, 09:51 | 210 | 210 per 100 ml |
| 22 Apr 2026, 10:55 | 63 | 63 per 100 ml |
| 13 Feb 2026, 15:07 | 420 | 420 per 100 ml |
| 13 Jan 2026, 08:28 | 190 | 190 per 100 ml |
| 8 Dec 2025, 14:26 | 350 | 350 per 100 ml |
| 26 Nov 2025, 10:10 | 18 | 18 per 100 ml |
| 27 Oct 2025, 13:12 | 63 | 63 per 100 ml |
| 4 Sep 2025, 14:12 | 10000 | 10000 per 100 ml |
| 6 Aug 2025, 15:34 | 3100 | 3100 per 100 ml |
| 12 Jun 2025, 10:01 | 1400 | 1400 per 100 ml |
| 29 May 2025, 11:19 | 1400 | 1400 per 100 ml |
| 1 Apr 2025, 12:54 | <10 | below 10 per 100 ml (not detected above this) |
| 11 Mar 2025, 15:49 | 36 | 36 per 100 ml |
| 20 Feb 2025, 10:22 | 54 | 54 per 100 ml |
| 14 Jan 2025, 14:01 | <10 | below 10 per 100 ml (not detected above this) |
| 9 Dec 2024, 11:29 | 400 | 400 per 100 ml |
| 21 Oct 2024, 11:13 | 260 | 260 per 100 ml |
| 17 Sep 2024, 13:38 | 250 | 250 per 100 ml |
| 9 Aug 2024, 09:21 | 72 | 72 per 100 ml |
| 9 Jul 2024, 13:11 | 81 | 81 per 100 ml |
| 10 Jun 2024, 12:41 | 140 | 140 per 100 ml |
| 2 May 2024, 14:44 | <10 | below 10 per 100 ml (not detected above this) |
Everything measured here
64 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 64 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 20 | Jun 2024 – Aug 2026 | 4.8% 19 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Jun 2024 – Aug 2026 | 0.45 mg/l 19 Aug 2026 |
| Temperature of Water 0076 | River water | 20 | Jun 2024 – Aug 2026 | 18.4 °C 19 Aug 2026 |
| pH 0061 | River water | 20 | Jun 2024 – Aug 2026 | 7.33 19 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Jun 2024 – Aug 2026 | 1.3 mg/l 19 Aug 2026 |
| Nitrate as N 0117 | River water | 20 | Jun 2024 – Aug 2026 | below 0.196 mg/l 19 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Jun 2024 – Aug 2026 | 6.6 mg/l 19 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Jun 2024 – Aug 2026 | 4076 µS/cm 19 Aug 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 25 | May 2024 – Aug 2026 | 1500 per 100 ml 19 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | May 2024 – May 2024 | below 0.004 µg/l 2 May 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 2 May 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Jun 2024 – Aug 2026 | 470 mg/l 19 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Jun 2024 – Aug 2026 | 0.00959 mg/l 19 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 19 | Jun 2024 – Aug 2026 | 9.1 mg/l 19 Aug 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 25 | May 2024 – Aug 2026 | 2000 colony forming units / 100ml 19 Aug 2026 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 25 | May 2024 – Aug 2026 | 2000 colony forming units / 100ml 19 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Nitrite as N 0118 | River water | 20 | Jun 2024 – Aug 2026 | below 0.004 mg/l 19 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Jun 2024 – Aug 2026 | below 0.2 mg/l 19 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | May 2024 – May 2024 | 0.0012 µg/l 2 May 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | May 2024 – May 2024 | 0.0043 µg/l 2 May 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 2 May 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | May 2024 – May 2024 | 0.0015 µg/l 2 May 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | May 2024 – May 2024 | 0.0025 µg/l 2 May 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | May 2024 – May 2024 | below 0.001 µg/l 2 May 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | May 2024 – May 2024 | 0.00087 µg/l 2 May 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | May 2024 – May 2024 | 0.00073 µg/l 2 May 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | May 2024 – May 2024 | 0.00071 µg/l 2 May 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | May 2024 – May 2024 | below 0.0005 µg/l 2 May 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | May 2024 – May 2024 | 0.0023 µg/l 2 May 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | May 2024 – May 2024 | below 0.006 µg/l 2 May 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | May 2024 – May 2024 | below 0.005 µg/l 2 May 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | May 2024 – May 2024 | below 0.004 µg/l 2 May 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | May 2024 – May 2024 | below 0.002 µg/l 2 May 2024 |
| Solids, Suspended at 105 C 0135 | River water | 21 | May 2024 – Aug 2026 | 17 mg/l 19 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.