Pippingford Brook Mardens Hill
EA name: PIPPINGFORD BROOK MARDENS HILL (also listed as “MARDENS HILL PIPPINGFORD BROOK”)
Environment Agency sampling point SO-E0000979 · 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
- 14 Jan 2026, 11:549 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 24 Jan 2024 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 549800, 132500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedGrid reference only to 100 m and no line carries the name it gives, so position alone cannot choose. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (25 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.5%
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 95.5 | 95.5% |
| 3 Dec 2025, 10:10 | 97.7 | 97.7% |
| 11 Nov 2025, 11:14 | 93.4 | 93.4% |
| 27 Oct 2025, 12:53 | 87.4 | 87.4% |
| 19 Sep 2025, 13:23 | 70.2 | 70.2% |
| 14 Aug 2025, 09:28 | 55.7 | 55.7% |
| 17 Jul 2025, 11:35 | 58.6 | 58.6% |
| 30 Jun 2025, 11:37 | 60.1 | 60.1% |
| 16 Jun 2025, 11:06 | 67.6 | 67.6% |
| 19 May 2025, 12:25 | 72.4 | 72.4% |
| 24 Mar 2025, 12:09 | 93.2 | 93.2% |
| 27 Feb 2025, 13:39 | 97.8 | 97.8% |
| 27 Jan 2025, 12:43 | 97.9 | 97.9% |
| 16 Dec 2024, 09:26 | 91.8 | 91.8% |
| 26 Nov 2024, 12:45 | 100.8 | 100.8% |
| 20 Nov 2024, 12:33 | 98.8 | 98.8% |
| 24 Sep 2024, 13:48 | 97.3 | 97.3% |
| 29 Aug 2024, 10:35 | 79.3 | 79.3% |
| 30 Jul 2024, 09:21 | 85.1 | 85.1% |
| 26 Jun 2024, 13:19 | 81.3 | 81.3% |
| 14 May 2024, 11:07 | 92.3 | 92.3% |
| 19 Apr 2024, 12:01 | 95.2 | 95.2% |
| 20 Mar 2024, 14:19 | 100.3 | 100.3% |
| 20 Feb 2024, 16:45 | 97.1 | 97.1% |
| 24 Jan 2024, 14:25 | 96.1 | 96.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.8 mg/l
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 11.8 | 11.8 mg/l |
| 3 Dec 2025, 10:10 | 11.7 | 11.7 mg/l |
| 11 Nov 2025, 11:14 | 10.3 | 10.3 mg/l |
| 27 Oct 2025, 12:53 | 9.89 | 9.89 mg/l |
| 19 Sep 2025, 13:23 | 7.23 | 7.23 mg/l |
| 14 Aug 2025, 09:28 | 5.75 | 5.75 mg/l |
| 17 Jul 2025, 11:35 | 6.04 | 6.04 mg/l |
| 30 Jun 2025, 11:37 | 6.08 | 6.08 mg/l |
| 16 Jun 2025, 11:06 | 7.14 | 7.14 mg/l |
| 19 May 2025, 12:25 | 7.95 | 7.95 mg/l |
| 24 Mar 2025, 12:09 | 10.8 | 10.8 mg/l |
| 27 Feb 2025, 13:39 | 11.9 | 11.9 mg/l |
| 27 Jan 2025, 12:43 | 12 | 12 mg/l |
| 16 Dec 2024, 09:26 | 10.7 | 10.7 mg/l |
| 26 Nov 2024, 12:45 | 11.9 | 11.9 mg/l |
| 20 Nov 2024, 12:33 | 12.2 | 12.2 mg/l |
| 24 Sep 2024, 13:48 | 9.94 | 9.94 mg/l |
| 29 Aug 2024, 10:35 | 8.34 | 8.34 mg/l |
| 30 Jul 2024, 09:21 | 8.79 | 8.79 mg/l |
| 26 Jun 2024, 13:19 | 8.39 | 8.39 mg/l |
| 14 May 2024, 11:07 | 9.79 | 9.79 mg/l |
| 19 Apr 2024, 12:01 | 10.7 | 10.7 mg/l |
| 20 Mar 2024, 14:19 | 10.8 | 10.8 mg/l |
| 20 Feb 2024, 16:45 | 11.1 | 11.1 mg/l |
| 24 Jan 2024, 14:25 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
6.1 °C
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 6.1 | 6.1 °C |
| 3 Dec 2025, 10:10 | 7.5 | 7.5 °C |
| 11 Nov 2025, 11:14 | 11 | 11 °C |
| 27 Oct 2025, 12:53 | 9.8 | 9.8 °C |
| 19 Sep 2025, 13:23 | 13.9 | 13.9 °C |
| 14 Aug 2025, 09:28 | 13.8 | 13.8 °C |
| 17 Jul 2025, 11:35 | 13.9 | 13.9 °C |
| 30 Jun 2025, 11:37 | 14.7 | 14.7 °C |
| 16 Jun 2025, 11:06 | 12.8 | 12.8 °C |
| 19 May 2025, 12:25 | 11.1 | 11.1 °C |
| 24 Mar 2025, 12:09 | 8.7 | 8.7 °C |
| 27 Feb 2025, 13:39 | 6.7 | 6.7 °C |
| 27 Jan 2025, 12:43 | 6.6 | 6.6 °C |
| 16 Dec 2024, 09:26 | 8.7 | 8.7 °C |
| 26 Nov 2024, 12:45 | 8.2 | 8.2 °C |
| 20 Nov 2024, 12:33 | 6.3 | 6.3 °C |
| 24 Sep 2024, 13:48 | 14.3 | 14.3 °C |
| 29 Aug 2024, 10:35 | 13 | 13 °C |
| 30 Jul 2024, 09:21 | 13.8 | 13.8 °C |
| 26 Jun 2024, 13:19 | 13.8 | 13.8 °C |
| 14 May 2024, 11:07 | 12.6 | 12.6 °C |
| 19 Apr 2024, 12:01 | 10.2 | 10.2 °C |
| 20 Mar 2024, 14:19 | 11.9 | 11.9 °C |
| 20 Feb 2024, 16:45 | 9.3 | 9.3 °C |
| 24 Jan 2024, 14:25 | 7.8 | 7.8 °C |
pH
code 0061
7.05
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 7.05 | 7.05 |
| 3 Dec 2025, 10:10 | 6.79 | 6.79 |
| 11 Nov 2025, 11:14 | 6.94 | 6.94 |
| 27 Oct 2025, 12:53 | 6.95 | 6.95 |
| 19 Sep 2025, 13:23 | 6.91 | 6.91 |
| 14 Aug 2025, 09:28 | 6.38 | 6.38 |
| 17 Jul 2025, 11:35 | 6.5 | 6.5 |
| 30 Jun 2025, 11:37 | 6.21 | 6.21 |
| 16 Jun 2025, 11:06 | 6.95 | 6.95 |
| 19 May 2025, 12:25 | 6.51 | 6.51 |
| 24 Mar 2025, 12:09 | 6.78 | 6.78 |
| 27 Feb 2025, 13:39 | 7.44 | 7.44 |
| 27 Jan 2025, 12:43 | 7 | 7 |
| 16 Dec 2024, 09:26 | 6.75 | 6.75 |
| 26 Nov 2024, 12:45 | 7.66 | 7.66 |
| 20 Nov 2024, 12:33 | 6.96 | 6.96 |
| 24 Sep 2024, 13:48 | 7.01 | 7.01 |
| 29 Aug 2024, 10:35 | 6.44 | 6.44 |
| 30 Jul 2024, 09:21 | 7.87 | 7.87 |
| 26 Jun 2024, 13:19 | 6.72 | 6.72 |
| 14 May 2024, 11:07 | 6.72 | 6.72 |
| 19 Apr 2024, 12:01 | 7.16 | 7.16 |
| 20 Mar 2024, 14:19 | 6.93 | 6.93 |
| 20 Feb 2024, 16:45 | 7.02 | 7.02 |
| 24 Jan 2024, 14:25 | 7.07 | 7.07 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2025, 10:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Nov 2025, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Oct 2025, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Sep 2025, 13:23 | 0.046 | 0.046 mg/l |
| 14 Aug 2025, 09:28 | 0.034 | 0.034 mg/l |
| 17 Jul 2025, 11:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jun 2025, 11:37 | 0.043 | 0.043 mg/l |
| 16 Jun 2025, 11:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 May 2025, 12:25 | 0.037 | 0.037 mg/l |
| 24 Mar 2025, 12:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Feb 2025, 13:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jan 2025, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Dec 2024, 09:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Nov 2024, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2024, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Sep 2024, 13:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Aug 2024, 10:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2024, 09:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2024, 13:19 | 0.053 | 0.053 mg/l |
| 14 May 2024, 11:07 | 0.037 | 0.037 mg/l |
| 19 Apr 2024, 12:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Mar 2024, 14:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2024, 16:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jan 2024, 14:25 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.496 mg/l
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 0.496 | 0.496 mg/l |
| 3 Dec 2025, 10:10 | 0.316 | 0.316 mg/l |
| 11 Nov 2025, 11:14 | 0.326 | 0.326 mg/l |
| 27 Oct 2025, 12:53 | 0.316 | 0.316 mg/l |
| 19 Sep 2025, 13:23 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 Aug 2025, 09:28 | <0.196 | below 0.196 mg/l (not detected above this) |
| 17 Jul 2025, 11:35 | 0.346 | 0.346 mg/l |
| 30 Jun 2025, 11:37 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Jun 2025, 11:06 | <0.196 | below 0.196 mg/l (not detected above this) |
| 19 May 2025, 12:25 | <0.196 | below 0.196 mg/l (not detected above this) |
| 24 Mar 2025, 12:09 | 0.386 | 0.386 mg/l |
| 27 Feb 2025, 13:39 | 0.466 | 0.466 mg/l |
| 27 Jan 2025, 12:43 | 0.566 | 0.566 mg/l |
| 16 Dec 2024, 09:26 | 0.406 | 0.406 mg/l |
| 26 Nov 2024, 12:45 | 0.396 | 0.396 mg/l |
| 20 Nov 2024, 12:33 | 0.376 | 0.376 mg/l |
| 24 Sep 2024, 13:48 | 0.346 | 0.346 mg/l |
| 29 Aug 2024, 10:35 | <0.196 | below 0.196 mg/l (not detected above this) |
| 30 Jul 2024, 09:21 | <0.196 | below 0.196 mg/l (not detected above this) |
| 26 Jun 2024, 13:19 | 0.256 | 0.256 mg/l |
| 14 May 2024, 11:07 | 0.576 | 0.576 mg/l |
| 19 Apr 2024, 12:01 | 0.456 | 0.456 mg/l |
| 20 Mar 2024, 14:19 | 0.416 | 0.416 mg/l |
| 20 Feb 2024, 16:45 | 0.426 | 0.426 mg/l |
| 24 Jan 2024, 14:25 | 0.606 | 0.606 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.016 mg/l
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 0.016 | 0.016 mg/l |
| 3 Dec 2025, 10:10 | 0.025 | 0.025 mg/l |
| 11 Nov 2025, 11:14 | 0.017 | 0.017 mg/l |
| 27 Oct 2025, 12:53 | 0.033 | 0.033 mg/l |
| 19 Sep 2025, 13:23 | 0.038 | 0.038 mg/l |
| 14 Aug 2025, 09:28 | 0.033 | 0.033 mg/l |
| 17 Jul 2025, 11:35 | 0.034 | 0.034 mg/l |
| 30 Jun 2025, 11:37 | 0.019 | 0.019 mg/l |
| 16 Jun 2025, 11:06 | 0.026 | 0.026 mg/l |
| 19 May 2025, 12:25 | 0.038 | 0.038 mg/l |
| 24 Mar 2025, 12:09 | 0.015 | 0.015 mg/l |
| 27 Feb 2025, 13:39 | 0.019 | 0.019 mg/l |
| 27 Jan 2025, 12:43 | 0.019 | 0.019 mg/l |
| 16 Dec 2024, 09:26 | 0.016 | 0.016 mg/l |
| 26 Nov 2024, 12:45 | 0.016 | 0.016 mg/l |
| 20 Nov 2024, 12:33 | 0.021 | 0.021 mg/l |
| 24 Sep 2024, 13:48 | 0.029 | 0.029 mg/l |
| 29 Aug 2024, 10:35 | 0.038 | 0.038 mg/l |
| 30 Jul 2024, 09:21 | 0.032 | 0.032 mg/l |
| 26 Jun 2024, 13:19 | 0.022 | 0.022 mg/l |
| 14 May 2024, 11:07 | 0.017 | 0.017 mg/l |
| 19 Apr 2024, 12:01 | 0.02 | 0.02 mg/l |
| 20 Mar 2024, 14:19 | 0.017 | 0.017 mg/l |
| 20 Feb 2024, 16:45 | 0.021 | 0.021 mg/l |
| 24 Jan 2024, 14:25 | 0.019 | 0.019 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
120 µS/cm
Sampled 14 Jan 2026, 9 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jan 2026, 11:54 | 120 | 120 µS/cm |
| 3 Dec 2025, 10:10 | 128 | 128 µS/cm |
| 11 Nov 2025, 11:14 | 136 | 136 µS/cm |
| 27 Oct 2025, 12:53 | 178 | 178 µS/cm |
| 19 Sep 2025, 13:23 | 177 | 177 µS/cm |
| 14 Aug 2025, 09:28 | 171 | 171 µS/cm |
| 17 Jul 2025, 11:35 | 169 | 169 µS/cm |
| 30 Jun 2025, 11:37 | 169 | 169 µS/cm |
| 16 Jun 2025, 11:06 | 165 | 165 µS/cm |
| 19 May 2025, 12:25 | 164 | 164 µS/cm |
| 24 Mar 2025, 12:09 | 148 | 148 µS/cm |
| 27 Feb 2025, 13:39 | 134 | 134 µS/cm |
| 27 Jan 2025, 12:43 | 120 | 120 µS/cm |
| 16 Dec 2024, 09:26 | 134 | 134 µS/cm |
| 26 Nov 2024, 12:45 | 141 | 141 µS/cm |
| 20 Nov 2024, 12:33 | 130 | 130 µS/cm |
| 24 Sep 2024, 13:48 | 105 | 105 µS/cm |
| 29 Aug 2024, 10:35 | 166 | 166 µS/cm |
| 30 Jul 2024, 09:21 | 809 | 809 µS/cm |
| 26 Jun 2024, 13:19 | 155 | 155 µS/cm |
| 14 May 2024, 11:07 | 133 | 133 µS/cm |
| 19 Apr 2024, 12:01 | 158 | 158 µS/cm |
| 20 Mar 2024, 14:19 | 131 | 131 µS/cm |
| 20 Feb 2024, 16:45 | 122 | 122 µS/cm |
| 24 Jan 2024, 14:25 | 171 | 171 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 | 25 | Jan 2024 – Jan 2026 | 95.5% 14 Jan 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 25 | Jan 2024 – Jan 2026 | 11.8 mg/l 14 Jan 2026 |
| Temperature of Water 0076 | River water | 25 | Jan 2024 – Jan 2026 | 6.1 °C 14 Jan 2026 |
| pH 0061 | River water | 25 | Jan 2024 – Jan 2026 | 7.05 14 Jan 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 25 | Jan 2024 – Jan 2026 | below 0.03 mg/l 14 Jan 2026 |
| Nitrate as N 0117 | River water | 25 | Jan 2024 – Jan 2026 | 0.496 mg/l 14 Jan 2026 |
| Orthophosphate, reactive as P 0180 | River water | 25 | Jan 2024 – Jan 2026 | 0.016 mg/l 14 Jan 2026 |
| Conductivity at 25 C 0077 | River water | 25 | Jan 2024 – Jan 2026 | 120 µS/cm 14 Jan 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Nov 2024 – Nov 2024 | below 0.004 µg/l 20 Nov 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 20 Nov 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 25 | Jan 2024 – Jan 2026 | 18 mg/l 14 Jan 2026 |
| Ammonia un-ionised as N 0119 | River water | 25 | Jan 2024 – Jan 2026 | below 0.00005 mg/l 14 Jan 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Feb 2024 – Jan 2026 | below 1 mg/l 14 Jan 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| Nitrite as N 0118 | River water | 25 | Jan 2024 – Jan 2026 | below 0.004 mg/l 14 Jan 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Jan 2024 – Jan 2026 | 0.5 mg/l 14 Jan 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| Perfluorobutanoic acid 2995 | River water | 1 | Nov 2024 – Nov 2024 | 0.0024 µg/l 20 Nov 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| Perfluorodecanoic acid 8892 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 20 Nov 2024 |
| Perfluorododecanoic acid 8894 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorohexanoic acid 8888 | River water | 1 | Nov 2024 – Nov 2024 | 0.00097 µg/l 20 Nov 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluorononanoic acid 8891 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Nov 2024 – Nov 2024 | 0.00064 µg/l 20 Nov 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Nov 2024 – Nov 2024 | 0.00052 µg/l 20 Nov 2024 |
| Perfluorooctanoic acid 8890 | River water | 1 | Nov 2024 – Nov 2024 | 0.001 µg/l 20 Nov 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Nov 2024 – Nov 2024 | below 0.0005 µg/l 20 Nov 2024 |
| Perfluoropentanoic acid 8887 | River water | 1 | Nov 2024 – Nov 2024 | below 0.001 µg/l 20 Nov 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Nov 2024 – Nov 2024 | below 0.006 µg/l 20 Nov 2024 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Nov 2024 – Nov 2024 | below 0.005 µg/l 20 Nov 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Nov 2024 – Nov 2024 | below 0.004 µg/l 20 Nov 2024 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Nov 2024 – Nov 2024 | below 0.002 µg/l 20 Nov 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.