Crowdundle Beck 50 m upstream of Birk Sike
EA name: CROWDUNDLE BECK 50M U/S BIRK SIKE
Environment Agency sampling point NW-88019870 · 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
- 6 May 2026, 10:015 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
- 25 since 6 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 360850, 528150As published, to the nearest 10 m. Open in a map
- River, by its own name
- Crowdundle Beck
- River, by the map
- Crowdundle BeckPlaced on the river its name gives, 21 m from the line.
- Next gauge downstream
- Great Corby On the River Eden · 41 km along the river
- Why it was sampled
- Monitoring (national agency policy) (25 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.3%
Sampled 6 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 102.3 | 102.3% |
| 2 Mar 2026, 15:51 | 101.9 | 101.9% |
| 4 Feb 2026, 13:58 | 98.8 | 98.8% |
| 6 Jan 2026, 10:30 | 101.3 | 101.3% |
| 9 Dec 2025, 09:33 | 99.9 | 99.9% |
| 5 Nov 2025, 10:20 | 98.1 | 98.1% |
| 3 Oct 2025, 12:15 | 96.5 | 96.5% |
| 17 Sep 2025, 13:25 | 98 | 98% |
| 22 Aug 2025, 09:57 | 93 | 93% |
| 10 Jul 2025, 11:44 | 105.1 | 105.1% |
| 17 Jun 2025, 10:15 | 94 | 94% |
| 1 Apr 2025, 14:20 | 111.9 | 111.9% |
| 13 Mar 2025, 10:57 | 108.6 | 108.6% |
| 17 Feb 2025, 11:15 | 101.8 | 101.8% |
| 20 Jan 2025, 11:42 | 100.8 | 100.8% |
| 2 Dec 2024, 11:39 | 100.5 | 100.5% |
| 18 Nov 2024, 12:12 | 101.2 | 101.2% |
| 23 Oct 2024, 11:39 | 99 | 99% |
| 19 Sep 2024, 13:51 | 101.4 | 101.4% |
| 21 Aug 2024, 11:12 | 100.2 | 100.2% |
| 16 Jul 2024, 14:20 | 100.1 | 100.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.1 mg/l
Sampled 6 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 12.1 | 12.1 mg/l |
| 2 Mar 2026, 15:51 | 12 | 12 mg/l |
| 4 Feb 2026, 13:58 | 12.9 | 12.9 mg/l |
| 6 Jan 2026, 10:30 | 14.6 | 14.6 mg/l |
| 9 Dec 2025, 09:33 | 11.6 | 11.6 mg/l |
| 5 Nov 2025, 10:20 | 10.8 | 10.8 mg/l |
| 3 Oct 2025, 12:15 | 10.5 | 10.5 mg/l |
| 17 Sep 2025, 13:25 | 10.5 | 10.5 mg/l |
| 22 Aug 2025, 09:57 | 9.73 | 9.73 mg/l |
| 10 Jul 2025, 11:44 | 10.3 | 10.3 mg/l |
| 17 Jun 2025, 10:15 | 9.71 | 9.71 mg/l |
| 1 Apr 2025, 14:20 | 12.6 | 12.6 mg/l |
| 13 Mar 2025, 10:57 | 14.1 | 14.1 mg/l |
| 17 Feb 2025, 11:15 | 13.8 | 13.8 mg/l |
| 20 Jan 2025, 11:42 | 13.2 | 13.2 mg/l |
| 2 Dec 2024, 11:39 | 12 | 12 mg/l |
| 18 Nov 2024, 12:12 | 13 | 13 mg/l |
| 23 Oct 2024, 11:39 | 11.2 | 11.2 mg/l |
| 19 Sep 2024, 13:51 | 10.9 | 10.9 mg/l |
| 21 Aug 2024, 11:12 | 10.6 | 10.6 mg/l |
| 16 Jul 2024, 14:20 | 10.1 | 10.1 mg/l |
Water temperature
code 0076 · °C
8.1 °C
Sampled 6 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 8.1 | 8.1 °C |
| 2 Mar 2026, 15:51 | 8 | 8 °C |
| 4 Feb 2026, 13:58 | 4.2 | 4.2 °C |
| 6 Jan 2026, 10:30 | 0.5 | 0.5 °C |
| 9 Dec 2025, 09:33 | 8.7 | 8.7 °C |
| 5 Nov 2025, 10:20 | 10.9 | 10.9 °C |
| 3 Oct 2025, 12:15 | 11.6 | 11.6 °C |
| 17 Sep 2025, 13:25 | 12 | 12 °C |
| 22 Aug 2025, 09:57 | 13.2 | 13.2 °C |
| 10 Jul 2025, 11:44 | 16.1 | 16.1 °C |
| 17 Jun 2025, 10:15 | 13.8 | 13.8 °C |
| 1 Apr 2025, 14:20 | 10.1 | 10.1 °C |
| 13 Mar 2025, 10:57 | 4.4 | 4.4 °C |
| 17 Feb 2025, 11:15 | 2.8 | 2.8 °C |
| 20 Jan 2025, 11:42 | 3.9 | 3.9 °C |
| 2 Dec 2024, 11:39 | 7.5 | 7.5 °C |
| 18 Nov 2024, 12:12 | 4.6 | 4.6 °C |
| 23 Oct 2024, 11:39 | 9.8 | 9.8 °C |
| 19 Sep 2024, 13:51 | 12.2 | 12.2 °C |
| 21 Aug 2024, 11:12 | 12.7 | 12.7 °C |
| 16 Jul 2024, 14:20 | 14.8 | 14.8 °C |
pH
code 0061
8.19
Sampled 6 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 8.19 | 8.19 |
| 2 Mar 2026, 15:51 | 8.07 | 8.07 |
| 4 Feb 2026, 13:58 | 8.31 | 8.31 |
| 6 Jan 2026, 10:30 | 7.96 | 7.96 |
| 9 Dec 2025, 09:33 | 7.79 | 7.79 |
| 5 Nov 2025, 10:20 | 7.77 | 7.77 |
| 3 Oct 2025, 12:15 | 8.23 | 8.23 |
| 17 Sep 2025, 13:25 | 7.97 | 7.97 |
| 22 Aug 2025, 09:57 | 8.06 | 8.06 |
| 10 Jul 2025, 11:44 | 8.32 | 8.32 |
| 17 Jun 2025, 10:15 | 7.91 | 7.91 |
| 1 Apr 2025, 14:20 | 8.67 | 8.67 |
| 13 Mar 2025, 10:57 | 8.45 | 8.45 |
| 17 Feb 2025, 11:15 | 8.12 | 8.12 |
| 20 Jan 2025, 11:42 | 8.05 | 8.05 |
| 2 Dec 2024, 11:39 | 7.98 | 7.98 |
| 18 Nov 2024, 12:12 | 8.04 | 8.04 |
| 23 Oct 2024, 11:39 | 7.96 | 7.96 |
| 19 Sep 2024, 13:51 | 8.16 | 8.16 |
| 21 Aug 2024, 11:12 | 8.12 | 8.12 |
| 16 Jul 2024, 14:20 | 8.09 | 8.09 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.0091 mg/l
Sampled 6 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 0.0091 | 0.0091 mg/l |
| 2 Mar 2026, 15:51 | 0.0075 | 0.0075 mg/l |
| 4 Feb 2026, 13:58 | 0.0061 | 0.0061 mg/l |
| 6 Jan 2026, 10:30 | 0.012 | 0.012 mg/l |
| 9 Dec 2025, 09:33 | 0.047 | 0.047 mg/l |
| 5 Nov 2025, 10:20 | 0.032 | 0.032 mg/l |
| 3 Oct 2025, 12:15 | <0.002 | below 0.002 mg/l (not detected above this) |
| 17 Sep 2025, 13:25 | <0.002 | below 0.002 mg/l (not detected above this) |
| 22 Aug 2025, 09:57 | 0.0066 | 0.0066 mg/l |
| 10 Jul 2025, 11:44 | 0.0058 | 0.0058 mg/l |
| 17 Jun 2025, 10:15 | 0.014 | 0.014 mg/l |
| 1 Apr 2025, 14:20 | 0.014 | 0.014 mg/l |
| 13 Mar 2025, 10:57 | 0.0073 | 0.0073 mg/l |
| 17 Feb 2025, 11:15 | 0.0093 | 0.0093 mg/l |
| 20 Jan 2025, 11:42 | 0.012 | 0.012 mg/l |
| 2 Dec 2024, 11:39 | 0.0066 | 0.0066 mg/l |
| 18 Nov 2024, 12:12 | 0.012 | 0.012 mg/l |
| 23 Oct 2024, 11:39 | 0.0042 | 0.0042 mg/l |
| 19 Sep 2024, 13:51 | 0.0078 | 0.0078 mg/l |
| 21 Aug 2024, 11:12 | 0.0055 | 0.0055 mg/l |
| 16 Jul 2024, 14:20 | 0.013 | 0.013 mg/l |
| 21 Jun 2024, 15:55 | 0.012 | 0.012 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.7 mg/l
Sampled 6 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 1.7 | 1.7 mg/l |
| 2 Mar 2026, 15:51 | 1.4 | 1.4 mg/l |
| 4 Feb 2026, 13:58 | 1.5 | 1.5 mg/l |
| 6 Jan 2026, 10:30 | 2 | 2 mg/l |
| 9 Dec 2025, 09:33 | 1.89 | 1.89 mg/l |
| 5 Nov 2025, 10:20 | 1.3 | 1.3 mg/l |
| 3 Oct 2025, 12:15 | 0.898 | 0.898 mg/l |
| 17 Sep 2025, 13:25 | 0.818 | 0.818 mg/l |
| 22 Aug 2025, 09:57 | 1.6 | 1.6 mg/l |
| 10 Jul 2025, 11:44 | 0.922 | 0.922 mg/l |
| 17 Jun 2025, 10:15 | 0.934 | 0.934 mg/l |
| 1 Apr 2025, 14:20 | 1.49 | 1.49 mg/l |
| 13 Mar 2025, 10:57 | 1.5 | 1.5 mg/l |
| 17 Feb 2025, 11:15 | 1.7 | 1.7 mg/l |
| 20 Jan 2025, 11:42 | 1.6 | 1.6 mg/l |
| 2 Dec 2024, 11:39 | 0.898 | 0.898 mg/l |
| 18 Nov 2024, 12:12 | 1.4 | 1.4 mg/l |
| 23 Oct 2024, 11:39 | 1.3 | 1.3 mg/l |
| 19 Sep 2024, 13:51 | 1.3 | 1.3 mg/l |
| 21 Aug 2024, 11:12 | 1.3 | 1.3 mg/l |
| 16 Jul 2024, 14:20 | 1.1 | 1.1 mg/l |
| 21 Jun 2024, 15:55 | 1.3 | 1.3 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0065 mg/l
Sampled 6 May 2026, 5 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 0.0065 | 0.0065 mg/l |
| 2 Mar 2026, 15:51 | 0.0097 | 0.0097 mg/l |
| 4 Feb 2026, 13:58 | 0.01 | 0.01 mg/l |
| 6 Jan 2026, 10:30 | 0.014 | 0.014 mg/l |
| 9 Dec 2025, 09:33 | 0.028 | 0.028 mg/l |
| 5 Nov 2025, 10:20 | 0.019 | 0.019 mg/l |
| 3 Oct 2025, 12:15 | 0.011 | 0.011 mg/l |
| 17 Sep 2025, 13:25 | 0.011 | 0.011 mg/l |
| 22 Aug 2025, 09:57 | 0.019 | 0.019 mg/l |
| 10 Jul 2025, 11:44 | 0.013 | 0.013 mg/l |
| 17 Jun 2025, 10:15 | 0.018 | 0.018 mg/l |
| 1 Apr 2025, 14:20 | 0.0092 | 0.0092 mg/l |
| 13 Mar 2025, 10:57 | 0.0077 | 0.0077 mg/l |
| 17 Feb 2025, 11:15 | 0.013 | 0.013 mg/l |
| 20 Jan 2025, 11:42 | 0.014 | 0.014 mg/l |
| 2 Dec 2024, 11:39 | 0.013 | 0.013 mg/l |
| 18 Nov 2024, 12:12 | 0.012 | 0.012 mg/l |
| 23 Oct 2024, 11:39 | 0.012 | 0.012 mg/l |
| 19 Sep 2024, 13:51 | 0.016 | 0.016 mg/l |
| 21 Aug 2024, 11:12 | 0.015 | 0.015 mg/l |
| 16 Jul 2024, 14:20 | 0.013 | 0.013 mg/l |
| 21 Jun 2024, 15:55 | 0.012 | 0.012 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
263 µS/cm
Sampled 6 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 May 2026, 10:01 | 263 | 263 µS/cm |
| 2 Mar 2026, 15:51 | 182 | 182 µS/cm |
| 4 Feb 2026, 13:58 | 198 | 198 µS/cm |
| 6 Jan 2026, 10:30 | 263 | 263 µS/cm |
| 9 Dec 2025, 09:33 | 165 | 165 µS/cm |
| 5 Nov 2025, 10:20 | 140 | 140 µS/cm |
| 3 Oct 2025, 12:15 | 193 | 193 µS/cm |
| 17 Sep 2025, 13:25 | 121 | 121 µS/cm |
| 22 Aug 2025, 09:57 | 281 | 281 µS/cm |
| 10 Jul 2025, 11:44 | 214 | 214 µS/cm |
| 17 Jun 2025, 10:15 | 220 | 220 µS/cm |
| 1 Apr 2025, 14:20 | 252 | 252 µS/cm |
| 13 Mar 2025, 10:57 | 234 | 234 µS/cm |
| 17 Feb 2025, 11:15 | 244 | 244 µS/cm |
| 20 Jan 2025, 11:42 | 216 | 216 µS/cm |
| 2 Dec 2024, 11:39 | 152 | 152 µS/cm |
| 18 Nov 2024, 12:12 | 226 | 226 µS/cm |
| 23 Oct 2024, 11:39 | 182 | 182 µS/cm |
| 19 Sep 2024, 13:51 | 233 | 233 µS/cm |
| 21 Aug 2024, 11:12 | 235 | 235 µS/cm |
| 16 Jul 2024, 14:20 | 201 | 201 µS/cm |
Everything measured here
61 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 61 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 21 | Jul 2024 – May 2026 | 102.3% 6 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Jul 2024 – May 2026 | 12.1 mg/l 6 May 2026 |
| Temperature of Water 0076 | River water | 21 | Jul 2024 – May 2026 | 8.1 °C 6 May 2026 |
| pH 0061 | River water | 21 | Jul 2024 – May 2026 | 8.19 6 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Jun 2024 – May 2026 | 0.0091 mg/l 6 May 2026 |
| Nitrate as N 0117 | River water | 22 | Jun 2024 – May 2026 | 1.7 mg/l 6 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Jun 2024 – May 2026 | 0.0065 mg/l 6 May 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Jul 2024 – May 2026 | 263 µS/cm 6 May 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Oct 2023 – Feb 2024 | below 0.004 µg/l 5 Feb 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 6 Oct 2023 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Jun 2024 – May 2026 | 110 mg/l 6 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Jul 2024 – May 2026 | 0.00014 mg/l 6 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.6 mg/l 6 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| Nitrite as N 0118 | River water | 22 | Jun 2024 – May 2026 | 0.0047 mg/l 6 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Jun 2024 – May 2026 | 1.7 mg/l 6 May 2026 |
| No flow /No sample 7668 | River water | 1 | May 2025 – May 2025 | No flow/discharge at sampling point 16 May 2025 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 6 Oct 2023 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| Perfluorodecanoic acid 8892 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Oct 2023 – Feb 2024 | below 0.005 µg/l 5 Feb 2024 |
| Perfluorododecanoic acid 8894 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorohexanoic acid 8888 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorononanoic acid 8891 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluorooctanoic acid 8890 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 5 Feb 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 5 Feb 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Feb 2024 – Feb 2024 | below 0.006 µg/l 5 Feb 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 6 Oct 2023 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Oct 2023 – Feb 2024 | below 0.004 µg/l 5 Feb 2024 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 5 Feb 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.