Crimple Beck at Blackstones
EA name: CRIMPLE BECK AT BLACKSTONES
Environment Agency sampling point NE-49800213 · 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
- 9 Oct 2025, 11:2012 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
- 26 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 Environmental monitoring statutory (EU directives)
- Where
- National Grid 440102, 453007As published, to the nearest 1 m. Open in a map
- River, by its own name
- Crimple Beck
- River, by the map
- Crimple BeckPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Blackstones Farm On the River Crimple · 0.1 km along the river
- Nearest gauge upstream
- Burn Bridge On the River Crimple · 20 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (17 samples)
Monitoring (national agency policy) (9 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
88.6%
Sampled 9 Oct 2025, 12 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 88.6 | 88.6% |
| 3 Sep 2025, 12:40 | 87.9 | 87.9% |
| 1 Aug 2025, 14:20 | 98.1 | 98.1% |
| 7 Jul 2025, 08:41 | 86.9 | 86.9% |
| 10 Jun 2025, 12:05 | 94 | 94% |
| 21 May 2025, 09:55 | 83.9 | 83.9% |
| 4 Apr 2025, 10:45 | 117.8 | 117.8% |
| 5 Mar 2025, 11:28 | 103.2 | 103.2% |
| 5 Feb 2025, 14:32 | 97.6 | 97.6% |
| 22 Jan 2025, 13:53 | 95.4 | 95.4% |
| 4 Dec 2024, 11:46 | 96.2 | 96.2% |
| 20 Nov 2024, 11:57 | 95.8 | 95.8% |
| 23 Oct 2024, 11:09 | 96.3 | 96.3% |
| 17 Sep 2024, 12:07 | 81.5 | 81.5% |
| 21 Aug 2024, 13:47 | 97.1 | 97.1% |
| 17 Jul 2024, 11:37 | 90.5 | 90.5% |
| 17 Jun 2024, 10:45 | 93.7 | 93.7% |
| 14 May 2024, 11:22 | 94.6 | 94.6% |
| 24 Apr 2024, 11:57 | 100.7 | 100.7% |
| 20 Mar 2024, 12:04 | 93.6 | 93.6% |
| 22 Feb 2024, 12:57 | 96.2 | 96.2% |
| 16 Jan 2024, 12:49 | 95.4 | 95.4% |
| 11 Dec 2023, 14:49 | 93.8 | 93.8% |
| 27 Nov 2023, 13:57 | 94.4 | 94.4% |
| 20 Nov 2023, 12:22 | 94.6 | 94.6% |
| 16 Oct 2023, 12:59 | 93.3 | 93.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.25 mg/l
Sampled 9 Oct 2025, 12 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 9.25 | 9.25 mg/l |
| 3 Sep 2025, 12:40 | 8.51 | 8.51 mg/l |
| 1 Aug 2025, 14:20 | 9.42 | 9.42 mg/l |
| 7 Jul 2025, 08:41 | 8.63 | 8.63 mg/l |
| 10 Jun 2025, 12:05 | 9.33 | 9.33 mg/l |
| 21 May 2025, 09:55 | 8.72 | 8.72 mg/l |
| 4 Apr 2025, 10:45 | 13.3 | 13.3 mg/l |
| 5 Mar 2025, 11:28 | 12.5 | 12.5 mg/l |
| 5 Feb 2025, 14:32 | 11.9 | 11.9 mg/l |
| 22 Jan 2025, 13:53 | 11.9 | 11.9 mg/l |
| 4 Dec 2024, 11:46 | 11.9 | 11.9 mg/l |
| 20 Nov 2024, 11:57 | 12.2 | 12.2 mg/l |
| 23 Oct 2024, 11:09 | 11 | 11 mg/l |
| 17 Sep 2024, 12:07 | 8.34 | 8.34 mg/l |
| 21 Aug 2024, 13:47 | 9.7 | 9.7 mg/l |
| 17 Jul 2024, 11:37 | 8.99 | 8.99 mg/l |
| 17 Jun 2024, 10:45 | 9.74 | 9.74 mg/l |
| 14 May 2024, 11:22 | 9.51 | 9.51 mg/l |
| 24 Apr 2024, 11:57 | 11.7 | 11.7 mg/l |
| 20 Mar 2024, 12:04 | 10.5 | 10.5 mg/l |
| 22 Feb 2024, 12:57 | 11.6 | 11.6 mg/l |
| 16 Jan 2024, 12:49 | 12.6 | 12.6 mg/l |
| 11 Dec 2023, 14:49 | 11.5 | 11.5 mg/l |
| 27 Nov 2023, 13:57 | 11.6 | 11.6 mg/l |
| 20 Nov 2023, 12:22 | 10.6 | 10.6 mg/l |
| 16 Oct 2023, 12:59 | 10.7 | 10.7 mg/l |
Water temperature
code 0076 · °C
13.3 °C
Sampled 9 Oct 2025, 12 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 13.3 | 13.3 °C |
| 3 Sep 2025, 12:40 | 16.8 | 16.8 °C |
| 1 Aug 2025, 14:20 | 17.2 | 17.2 °C |
| 7 Jul 2025, 08:41 | 15.6 | 15.6 °C |
| 10 Jun 2025, 12:05 | 15.6 | 15.6 °C |
| 21 May 2025, 09:55 | 13.5 | 13.5 °C |
| 4 Apr 2025, 10:45 | 9.9 | 9.9 °C |
| 5 Mar 2025, 11:28 | 7.1 | 7.1 °C |
| 5 Feb 2025, 14:32 | 6.7 | 6.7 °C |
| 22 Jan 2025, 13:53 | 6 | 6 °C |
| 4 Dec 2024, 11:46 | 6.1 | 6.1 °C |
| 20 Nov 2024, 11:57 | 5.1 | 5.1 °C |
| 23 Oct 2024, 11:09 | 9.3 | 9.3 °C |
| 17 Sep 2024, 12:07 | 14.2 | 14.2 °C |
| 21 Aug 2024, 13:47 | 15.3 | 15.3 °C |
| 17 Jul 2024, 11:37 | 15.6 | 15.6 °C |
| 17 Jun 2024, 10:45 | 13.5 | 13.5 °C |
| 14 May 2024, 11:22 | 15 | 15 °C |
| 24 Apr 2024, 11:57 | 8.7 | 8.7 °C |
| 20 Mar 2024, 12:04 | 10.1 | 10.1 °C |
| 22 Feb 2024, 12:57 | 7.3 | 7.3 °C |
| 16 Jan 2024, 12:49 | 3.7 | 3.7 °C |
| 11 Dec 2023, 14:49 | 6.5 | 6.5 °C |
| 27 Nov 2023, 13:57 | 6.6 | 6.6 °C |
| 20 Nov 2023, 12:22 | 10.2 | 10.2 °C |
| 16 Oct 2023, 12:59 | 9.3 | 9.3 °C |
pH
code 0061
7.71
Sampled 9 Oct 2025, 12 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 7.71 | 7.71 |
| 3 Sep 2025, 12:40 | 7.65 | 7.65 |
| 1 Aug 2025, 14:20 | 8.07 | 8.07 |
| 7 Jul 2025, 08:41 | 7.75 | 7.75 |
| 10 Jun 2025, 12:05 | 7.63 | 7.63 |
| 21 May 2025, 09:55 | 7.76 | 7.76 |
| 4 Apr 2025, 10:45 | 8.24 | 8.24 |
| 5 Mar 2025, 11:28 | 7.97 | 7.97 |
| 5 Feb 2025, 14:32 | 7.96 | 7.96 |
| 22 Jan 2025, 13:53 | 7.84 | 7.84 |
| 4 Dec 2024, 11:46 | 7.71 | 7.71 |
| 20 Nov 2024, 11:57 | 7.94 | 7.94 |
| 23 Oct 2024, 11:09 | 7.68 | 7.68 |
| 17 Sep 2024, 12:07 | 7.4 | 7.4 |
| 21 Aug 2024, 13:47 | 7.96 | 7.96 |
| 17 Jul 2024, 11:37 | 7.77 | 7.77 |
| 17 Jun 2024, 10:45 | 7.87 | 7.87 |
| 14 May 2024, 11:22 | 7.85 | 7.85 |
| 24 Apr 2024, 11:57 | 8 | 8 |
| 20 Mar 2024, 12:04 | 7.74 | 7.74 |
| 22 Feb 2024, 12:57 | 7.55 | 7.55 |
| 16 Jan 2024, 12:49 | 7.92 | 7.92 |
| 11 Dec 2023, 14:49 | 7.49 | 7.49 |
| 27 Nov 2023, 13:57 | 7.65 | 7.65 |
| 20 Nov 2023, 12:22 | 7.64 | 7.64 |
| 16 Oct 2023, 12:59 | 7.84 | 7.84 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 9 Oct 2025, 12 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2025, 12:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2025, 08:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Jun 2025, 12:05 | 0.37 | 0.37 mg/l |
| 21 May 2025, 09:55 | 0.053 | 0.053 mg/l |
| 4 Apr 2025, 10:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2025, 11:28 | 0.033 | 0.033 mg/l |
| 5 Feb 2025, 14:32 | 0.039 | 0.039 mg/l |
| 22 Jan 2025, 13:53 | 0.057 | 0.057 mg/l |
| 4 Dec 2024, 11:46 | 0.062 | 0.062 mg/l |
| 20 Nov 2024, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Oct 2024, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Sep 2024, 12:07 | 0.81 | 0.81 mg/l |
| 21 Aug 2024, 13:47 | 0.036 | 0.036 mg/l |
| 17 Jul 2024, 11:37 | 0.097 | 0.097 mg/l |
| 17 Jun 2024, 10:45 | 0.042 | 0.042 mg/l |
| 14 May 2024, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Apr 2024, 11:57 | 0.038 | 0.038 mg/l |
| 20 Mar 2024, 12:04 | 0.052 | 0.052 mg/l |
| 22 Feb 2024, 12:57 | 0.26 | 0.26 mg/l |
| 16 Jan 2024, 12:49 | 0.12 | 0.12 mg/l |
| 11 Dec 2023, 14:49 | 0.22 | 0.22 mg/l |
| 27 Nov 2023, 13:57 | 0.47 | 0.47 mg/l |
| 20 Nov 2023, 12:22 | 0.046 | 0.046 mg/l |
| 16 Oct 2023, 12:59 | 0.13 | 0.13 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.99 mg/l
Sampled 9 Oct 2025, 12 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 9.99 | 9.99 mg/l |
| 3 Sep 2025, 12:40 | 18 | 18 mg/l |
| 7 Jul 2025, 08:41 | 16 | 16 mg/l |
| 10 Jun 2025, 12:05 | 13.9 | 13.9 mg/l |
| 21 May 2025, 09:55 | 16.9 | 16.9 mg/l |
| 4 Apr 2025, 10:45 | 13 | 13 mg/l |
| 5 Mar 2025, 11:28 | 8.87 | 8.87 mg/l |
| 5 Feb 2025, 14:32 | 7.67 | 7.67 mg/l |
| 22 Jan 2025, 13:53 | 7.88 | 7.88 mg/l |
| 4 Dec 2024, 11:46 | 5.39 | 5.39 mg/l |
| 20 Nov 2024, 11:57 | 14 | 14 mg/l |
| 23 Oct 2024, 11:09 | 6.48 | 6.48 mg/l |
| 17 Sep 2024, 12:07 | 16.6 | 16.6 mg/l |
| 21 Aug 2024, 13:47 | 12 | 12 mg/l |
| 17 Jul 2024, 11:37 | 8.09 | 8.09 mg/l |
| 17 Jun 2024, 10:45 | 5.08 | 5.08 mg/l |
| 14 May 2024, 11:22 | 9.56 | 9.56 mg/l |
| 24 Apr 2024, 11:57 | 8.47 | 8.47 mg/l |
| 20 Mar 2024, 12:04 | 7.36 | 7.36 mg/l |
| 22 Feb 2024, 12:57 | 1.78 | 1.78 mg/l |
| 16 Jan 2024, 12:49 | 8.65 | 8.65 mg/l |
| 11 Dec 2023, 14:49 | 2.88 | 2.88 mg/l |
| 27 Nov 2023, 13:57 | 3.75 | 3.75 mg/l |
| 20 Nov 2023, 12:22 | 4.88 | 4.88 mg/l |
| 16 Oct 2023, 12:59 | 6.65 | 6.65 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.072 mg/l
Sampled 9 Oct 2025, 12 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 0.072 | 0.072 mg/l |
| 3 Sep 2025, 12:40 | 0.15 | 0.15 mg/l |
| 7 Jul 2025, 08:41 | 0.27 | 0.27 mg/l |
| 10 Jun 2025, 12:05 | 0.22 | 0.22 mg/l |
| 21 May 2025, 09:55 | 0.31 | 0.31 mg/l |
| 4 Apr 2025, 10:45 | 0.17 | 0.17 mg/l |
| 5 Mar 2025, 11:28 | 0.075 | 0.075 mg/l |
| 5 Feb 2025, 14:32 | 0.047 | 0.047 mg/l |
| 22 Jan 2025, 13:53 | 0.051 | 0.051 mg/l |
| 4 Dec 2024, 11:46 | 0.064 | 0.064 mg/l |
| 20 Nov 2024, 11:57 | 0.23 | 0.23 mg/l |
| 23 Oct 2024, 11:09 | 0.37 | 0.37 mg/l |
| 17 Sep 2024, 12:07 | 2.6 | 2.6 mg/l |
| 21 Aug 2024, 13:47 | 1.6 | 1.6 mg/l |
| 17 Jul 2024, 11:37 | 0.9 | 0.9 mg/l |
| 17 Jun 2024, 10:45 | 0.37 | 0.37 mg/l |
| 14 May 2024, 11:22 | 0.92 | 0.92 mg/l |
| 24 Apr 2024, 11:57 | 0.57 | 0.57 mg/l |
| 20 Mar 2024, 12:04 | 0.65 | 0.65 mg/l |
| 22 Feb 2024, 12:57 | 0.11 | 0.11 mg/l |
| 16 Jan 2024, 12:49 | 0.47 | 0.47 mg/l |
| 11 Dec 2023, 14:49 | 0.11 | 0.11 mg/l |
| 27 Nov 2023, 13:57 | 0.22 | 0.22 mg/l |
| 20 Nov 2023, 12:22 | 0.19 | 0.19 mg/l |
| 16 Oct 2023, 12:59 | 0.59 | 0.59 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
605 µS/cm
Sampled 9 Oct 2025, 12 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Oct 2025, 11:20 | 605 | 605 µS/cm |
| 3 Sep 2025, 12:40 | 701 | 701 µS/cm |
| 1 Aug 2025, 14:20 | 750 | 750 µS/cm |
| 7 Jul 2025, 08:41 | 754 | 754 µS/cm |
| 10 Jun 2025, 12:05 | 635 | 635 µS/cm |
| 21 May 2025, 09:55 | 701 | 701 µS/cm |
| 4 Apr 2025, 10:45 | 610 | 610 µS/cm |
| 5 Mar 2025, 11:28 | 532 | 532 µS/cm |
| 5 Feb 2025, 14:32 | 510 | 510 µS/cm |
| 22 Jan 2025, 13:53 | 569 | 569 µS/cm |
| 4 Dec 2024, 11:46 | 463 | 463 µS/cm |
| 20 Nov 2024, 11:57 | 640 | 640 µS/cm |
| 23 Oct 2024, 11:09 | 440 | 440 µS/cm |
| 17 Sep 2024, 12:07 | 607 | 607 µS/cm |
| 21 Aug 2024, 13:47 | 620 | 620 µS/cm |
| 17 Jul 2024, 11:37 | 521 | 521 µS/cm |
| 17 Jun 2024, 10:45 | 417 | 417 µS/cm |
| 14 May 2024, 11:22 | 566 | 566 µS/cm |
| 24 Apr 2024, 11:57 | 523 | 523 µS/cm |
| 20 Mar 2024, 12:04 | 485 | 485 µS/cm |
| 22 Feb 2024, 12:57 | 226 | 226 µS/cm |
| 16 Jan 2024, 12:49 | 507 | 507 µS/cm |
| 11 Dec 2023, 14:49 | 265 | 265 µS/cm |
| 27 Nov 2023, 13:57 | 458 | 458 µS/cm |
| 20 Nov 2023, 12:22 | 378 | 378 µS/cm |
| 16 Oct 2023, 12:59 | 490 | 490 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 | 26 | Oct 2023 – Oct 2025 | 88.6% 9 Oct 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 26 | Oct 2023 – Oct 2025 | 9.25 mg/l 9 Oct 2025 |
| Temperature of Water 0076 | River water | 26 | Oct 2023 – Oct 2025 | 13.3 °C 9 Oct 2025 |
| pH 0061 | River water | 26 | Oct 2023 – Oct 2025 | 7.71 9 Oct 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Oct 2023 – Oct 2025 | below 0.03 mg/l 9 Oct 2025 |
| Nitrate as N 0117 | River water | 25 | Oct 2023 – Oct 2025 | 9.99 mg/l 9 Oct 2025 |
| Orthophosphate, reactive as P 0180 | River water | 25 | Oct 2023 – Oct 2025 | 0.072 mg/l 9 Oct 2025 |
| Conductivity at 25 C 0077 | River water | 26 | Oct 2023 – Oct 2025 | 605 µS/cm 9 Oct 2025 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Oct 2023 – Dec 2024 | below 0.004 µg/l 4 Dec 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Oct 2023 – Dec 2024 | below 0.005 µg/l 4 Dec 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Oct 2023 – Dec 2024 | 0.0053 µg/l 4 Dec 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Oct 2023 – Oct 2025 | 98 mg/l 9 Oct 2025 |
| Ammonia un-ionised as N 0119 | River water | 25 | Oct 2023 – Oct 2025 | below 0.00036 mg/l 9 Oct 2025 |
| BOD : 5 Day ATU 0085 | River water | 14 | Feb 2024 – Mar 2025 | 1.3 mg/l 5 Mar 2025 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| Nitrite as N 0118 | River water | 25 | Oct 2023 – Oct 2025 | 0.014 mg/l 9 Oct 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Oct 2023 – Oct 2025 | 10 mg/l 9 Oct 2025 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Oct 2023 – Feb 2024 | 0.0013 µg/l 22 Feb 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Oct 2023 – Feb 2024 | 0.0048 µg/l 22 Feb 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| Perfluorodecanoic acid 8892 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Oct 2023 – Dec 2024 | below 0.005 µg/l 4 Dec 2024 |
| Perfluorododecanoic acid 8894 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Oct 2023 – Feb 2024 | 0.0029 µg/l 22 Feb 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Oct 2023 – Feb 2024 | 0.00084 µg/l 22 Feb 2024 |
| Perfluorohexanoic acid 8888 | River water | 3 | Oct 2023 – Dec 2024 | 0.0037 µg/l 4 Dec 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluorononanoic acid 8891 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Oct 2023 – Dec 2024 | below 0.001 µg/l 4 Dec 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Oct 2023 – Feb 2024 | 0.0041 µg/l 22 Feb 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 3 | Oct 2023 – Dec 2024 | 0.0015 µg/l 4 Dec 2024 |
| Perfluorooctanoic acid 8890 | River water | 3 | Oct 2023 – Dec 2024 | 0.0083 µg/l 4 Dec 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Oct 2023 – Dec 2024 | below 0.0005 µg/l 4 Dec 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Oct 2023 – Feb 2024 | 0.0052 µg/l 22 Feb 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Feb 2024 – Dec 2024 | below 0.006 µg/l 4 Dec 2024 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Oct 2023 – Dec 2024 | below 0.005 µg/l 4 Dec 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Oct 2023 – Dec 2024 | below 0.004 µg/l 4 Dec 2024 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Oct 2023 – Dec 2024 | below 0.002 µg/l 4 Dec 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.