Delaware Farm downstream of River Eden
EA name: DELAWARE FARM D/S R EDEN (also listed as “RIVER EDEN AT DELAWARE FARM”)
Environment Agency sampling point SO-E0000811 · 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
- 7 May 2026, 13:035 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
- 23 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 Monitoring (national agency policy)
- Where
- National Grid 546020, 145950As published, to the nearest 10 m. Open in a map
- River, by its own name
- Eden
- River, by the map
- River EdenPlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Vexour Bridge On the Eden Tributary Medway · 8.0 km along the river
- Nearest gauge upstream
- Edenbridge On the Eden Tributary Medway · 2.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
92.2%
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 92.2 | 92.2% |
| 8 Jan 2026, 13:29 | 96.2 | 96.2% |
| 23 Oct 2025, 10:35 | 82.4 | 82.4% |
| 24 Jul 2025, 09:07 | 84.2 | 84.2% |
| 7 Mar 2025, 08:55 | 95.8 | 95.8% |
| 25 Feb 2025, 11:23 | 82.1 | 82.1% |
| 28 Jan 2025, 08:29 | 84.1 | 84.1% |
| 13 Dec 2024, 13:16 | 92.6 | 92.6% |
| 28 Oct 2024, 09:31 | 92.6 | 92.6% |
| 24 Sep 2024, 13:50 | 62.5 | 62.5% |
| 21 Aug 2024, 16:09 | 95.2 | 95.2% |
| 25 Jul 2024, 15:30 | 40.4 | 40.4% |
| 24 Jun 2024, 12:46 | 90.9 | 90.9% |
| 14 May 2024, 11:55 | 92.3 | 92.3% |
| 29 Apr 2024, 12:47 | 83.6 | 83.6% |
| 20 Mar 2024, 12:58 | 101.3 | 101.3% |
| 20 Feb 2024, 15:00 | 93.3 | 93.3% |
| 16 Jan 2024, 12:13 | 96.2 | 96.2% |
| 7 Dec 2023, 12:09 | 90.6 | 90.6% |
| 28 Nov 2023, 13:10 | 86.6 | 86.6% |
| 16 Oct 2023, 11:52 | 86 | 86% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.54 mg/l
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 9.54 | 9.54 mg/l |
| 8 Jan 2026, 13:29 | 12.8 | 12.8 mg/l |
| 23 Oct 2025, 10:35 | 8.82 | 8.82 mg/l |
| 24 Jul 2025, 09:07 | 7.92 | 7.92 mg/l |
| 7 Mar 2025, 08:55 | 11.7 | 11.7 mg/l |
| 25 Feb 2025, 11:23 | 9.57 | 9.57 mg/l |
| 28 Jan 2025, 08:29 | 10.2 | 10.2 mg/l |
| 13 Dec 2024, 13:16 | 11.1 | 11.1 mg/l |
| 28 Oct 2024, 09:31 | 9.98 | 9.98 mg/l |
| 24 Sep 2024, 13:50 | 6.14 | 6.14 mg/l |
| 21 Aug 2024, 16:09 | 9.1 | 9.1 mg/l |
| 25 Jul 2024, 15:30 | 3.74 | 3.74 mg/l |
| 24 Jun 2024, 12:46 | 8.62 | 8.62 mg/l |
| 14 May 2024, 11:55 | 9.2 | 9.2 mg/l |
| 29 Apr 2024, 12:47 | 9.22 | 9.22 mg/l |
| 20 Mar 2024, 12:58 | 10.9 | 10.9 mg/l |
| 20 Feb 2024, 15:00 | 10.7 | 10.7 mg/l |
| 16 Jan 2024, 12:13 | 13.1 | 13.1 mg/l |
| 7 Dec 2023, 12:09 | 11.2 | 11.2 mg/l |
| 28 Nov 2023, 13:10 | 10.4 | 10.4 mg/l |
| 16 Oct 2023, 11:52 | 9.74 | 9.74 mg/l |
Water temperature
code 0076 · °C
13.7 °C
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 13.7 | 13.7 °C |
| 8 Jan 2026, 13:29 | 3.5 | 3.5 °C |
| 23 Oct 2025, 10:35 | 12.2 | 12.2 °C |
| 24 Jul 2025, 09:07 | 18.2 | 18.2 °C |
| 7 Mar 2025, 08:55 | 6.8 | 6.8 °C |
| 25 Feb 2025, 11:23 | 8.6 | 8.6 °C |
| 28 Jan 2025, 08:29 | 7.1 | 7.1 °C |
| 13 Dec 2024, 13:16 | 7.4 | 7.4 °C |
| 28 Oct 2024, 09:31 | 11.9 | 11.9 °C |
| 24 Sep 2024, 13:50 | 16.1 | 16.1 °C |
| 21 Aug 2024, 16:09 | 17.4 | 17.4 °C |
| 25 Jul 2024, 15:30 | 19 | 19 °C |
| 24 Jun 2024, 12:46 | 17.8 | 17.8 °C |
| 14 May 2024, 11:55 | 15.4 | 15.4 °C |
| 29 Apr 2024, 12:47 | 10.9 | 10.9 °C |
| 20 Mar 2024, 12:58 | 12.1 | 12.1 °C |
| 20 Feb 2024, 15:00 | 9.1 | 9.1 °C |
| 16 Jan 2024, 12:13 | 2.4 | 2.4 °C |
| 7 Dec 2023, 12:09 | 6.2 | 6.2 °C |
| 28 Nov 2023, 13:10 | 7.5 | 7.5 °C |
| 16 Oct 2023, 11:52 | 9.8 | 9.8 °C |
pH
code 0061
7.89
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 7.89 | 7.89 |
| 8 Jan 2026, 13:29 | 7.75 | 7.75 |
| 23 Oct 2025, 10:35 | 7.54 | 7.54 |
| 24 Jul 2025, 09:07 | 7.61 | 7.61 |
| 7 Mar 2025, 08:55 | 7.66 | 7.66 |
| 25 Feb 2025, 11:23 | 7.47 | 7.47 |
| 28 Jan 2025, 08:29 | 7.32 | 7.32 |
| 13 Dec 2024, 13:16 | 7.59 | 7.59 |
| 28 Oct 2024, 09:31 | 7.54 | 7.54 |
| 24 Sep 2024, 13:50 | 7.02 | 7.02 |
| 21 Aug 2024, 16:09 | 7.76 | 7.76 |
| 25 Jul 2024, 15:30 | 7.35 | 7.35 |
| 24 Jun 2024, 12:46 | 7.73 | 7.73 |
| 14 May 2024, 11:55 | 7.68 | 7.68 |
| 29 Apr 2024, 12:47 | 7.29 | 7.29 |
| 20 Mar 2024, 12:58 | 7.78 | 7.78 |
| 20 Feb 2024, 15:00 | 7.55 | 7.55 |
| 16 Jan 2024, 12:13 | 7.72 | 7.72 |
| 7 Dec 2023, 12:09 | 7.57 | 7.57 |
| 28 Nov 2023, 13:10 | 7.44 | 7.44 |
| 16 Oct 2023, 11:52 | 7.93 | 7.93 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.042 mg/l
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 0.042 | 0.042 mg/l |
| 8 Jan 2026, 13:29 | 0.43 | 0.43 mg/l |
| 23 Oct 2025, 10:35 | 0.58 | 0.58 mg/l |
| 24 Jul 2025, 09:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2025, 08:55 | 0.12 | 0.12 mg/l |
| 25 Feb 2025, 11:23 | 0.34 | 0.34 mg/l |
| 28 Jan 2025, 08:29 | 0.1 | 0.1 mg/l |
| 13 Dec 2024, 13:16 | 0.073 | 0.073 mg/l |
| 28 Oct 2024, 09:31 | 0.032 | 0.032 mg/l |
| 24 Sep 2024, 13:50 | 0.042 | 0.042 mg/l |
| 21 Aug 2024, 16:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2024, 15:30 | 0.1 | 0.1 mg/l |
| 24 Jun 2024, 12:46 | 0.034 | 0.034 mg/l |
| 14 May 2024, 11:55 | 0.06 | 0.06 mg/l |
| 29 Apr 2024, 12:47 | 0.09 | 0.09 mg/l |
| 20 Mar 2024, 12:58 | 0.047 | 0.047 mg/l |
| 20 Feb 2024, 15:00 | 0.039 | 0.039 mg/l |
| 16 Jan 2024, 12:13 | 0.22 | 0.22 mg/l |
| 7 Dec 2023, 12:09 | 0.1 | 0.1 mg/l |
| 28 Nov 2023, 13:10 | 0.075 | 0.075 mg/l |
| 16 Oct 2023, 11:52 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
11 mg/l
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 11 | 11 mg/l |
| 8 Jan 2026, 13:29 | 4.54 | 4.54 mg/l |
| 23 Oct 2025, 10:35 | 4.27 | 4.27 mg/l |
| 24 Jul 2025, 09:07 | 6.67 | 6.67 mg/l |
| 7 Mar 2025, 08:55 | 5.35 | 5.35 mg/l |
| 25 Feb 2025, 11:23 | 1.97 | 1.97 mg/l |
| 28 Jan 2025, 08:29 | 2.18 | 2.18 mg/l |
| 13 Dec 2024, 13:16 | 3.75 | 3.75 mg/l |
| 28 Oct 2024, 09:31 | 5.18 | 5.18 mg/l |
| 24 Sep 2024, 13:50 | 4.56 | 4.56 mg/l |
| 21 Aug 2024, 16:09 | 11 | 11 mg/l |
| 25 Jul 2024, 15:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 24 Jun 2024, 12:46 | 9.98 | 9.98 mg/l |
| 14 May 2024, 11:55 | 7.05 | 7.05 mg/l |
| 29 Apr 2024, 12:47 | 2.47 | 2.47 mg/l |
| 20 Mar 2024, 12:58 | 4.36 | 4.36 mg/l |
| 20 Feb 2024, 15:00 | 2.88 | 2.88 mg/l |
| 16 Jan 2024, 12:13 | 5.46 | 5.46 mg/l |
| 7 Dec 2023, 12:09 | 3.84 | 3.84 mg/l |
| 28 Nov 2023, 13:10 | 3.55 | 3.55 mg/l |
| 16 Oct 2023, 11:52 | 6.69 | 6.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.13 mg/l
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 0.13 | 0.13 mg/l |
| 8 Jan 2026, 13:29 | 0.11 | 0.11 mg/l |
| 23 Oct 2025, 10:35 | 0.2 | 0.2 mg/l |
| 24 Jul 2025, 09:07 | 0.11 | 0.11 mg/l |
| 7 Mar 2025, 08:55 | 0.084 | 0.084 mg/l |
| 25 Feb 2025, 11:23 | 0.13 | 0.13 mg/l |
| 28 Jan 2025, 08:29 | 0.088 | 0.088 mg/l |
| 13 Dec 2024, 13:16 | 0.11 | 0.11 mg/l |
| 28 Oct 2024, 09:31 | 0.16 | 0.16 mg/l |
| 24 Sep 2024, 13:50 | 0.23 | 0.23 mg/l |
| 21 Aug 2024, 16:09 | 0.55 | 0.55 mg/l |
| 25 Jul 2024, 15:30 | 0.13 | 0.13 mg/l |
| 24 Jun 2024, 12:46 | 0.32 | 0.32 mg/l |
| 14 May 2024, 11:55 | 0.22 | 0.22 mg/l |
| 29 Apr 2024, 12:47 | 0.09 | 0.09 mg/l |
| 20 Mar 2024, 12:58 | 0.18 | 0.18 mg/l |
| 20 Feb 2024, 15:00 | 0.15 | 0.15 mg/l |
| 16 Jan 2024, 12:13 | 0.17 | 0.17 mg/l |
| 7 Dec 2023, 12:09 | 0.17 | 0.17 mg/l |
| 28 Nov 2023, 13:10 | 0.13 | 0.13 mg/l |
| 16 Oct 2023, 11:52 | 0.34 | 0.34 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
649 µS/cm
Sampled 7 May 2026, 5 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 May 2026, 13:03 | 649 | 649 µS/cm |
| 8 Jan 2026, 13:29 | 534 | 534 µS/cm |
| 23 Oct 2025, 10:35 | 427 | 427 µS/cm |
| 24 Jul 2025, 09:07 | 592 | 592 µS/cm |
| 7 Mar 2025, 08:55 | 486 | 486 µS/cm |
| 25 Feb 2025, 11:23 | 307 | 307 µS/cm |
| 28 Jan 2025, 08:29 | 282 | 282 µS/cm |
| 13 Dec 2024, 13:16 | 396 | 396 µS/cm |
| 28 Oct 2024, 09:31 | 457 | 457 µS/cm |
| 24 Sep 2024, 13:50 | 287 | 287 µS/cm |
| 21 Aug 2024, 16:09 | 644 | 644 µS/cm |
| 25 Jul 2024, 15:30 | 392 | 392 µS/cm |
| 24 Jun 2024, 12:46 | 607 | 607 µS/cm |
| 14 May 2024, 11:55 | 489 | 489 µS/cm |
| 29 Apr 2024, 12:47 | 300 | 300 µS/cm |
| 20 Mar 2024, 12:58 | 427 | 427 µS/cm |
| 20 Feb 2024, 15:00 | 355 | 355 µS/cm |
| 16 Jan 2024, 12:13 | 475 | 475 µS/cm |
| 7 Dec 2023, 12:09 | 390 | 390 µS/cm |
| 28 Nov 2023, 13:10 | 359 | 359 µS/cm |
| 16 Oct 2023, 11:52 | 516 | 516 µS/cm |
Everything measured here
66 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 66 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 21 | Oct 2023 – May 2026 | 92.2% 7 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Oct 2023 – May 2026 | 9.54 mg/l 7 May 2026 |
| Temperature of Water 0076 | River water | 21 | Oct 2023 – May 2026 | 13.7 °C 7 May 2026 |
| pH 0061 | River water | 21 | Oct 2023 – May 2026 | 7.89 7 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 21 | Oct 2023 – May 2026 | 0.042 mg/l 7 May 2026 |
| Nitrate as N 0117 | River water | 21 | Oct 2023 – May 2026 | 11 mg/l 7 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – May 2026 | 0.13 mg/l 7 May 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2023 – May 2026 | 649 µS/cm 7 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 13 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Oct 2023 – Feb 2024 | below 0.004 µg/l 13 Feb 2024 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Oct 2023 – Feb 2024 | below 0.005 µg/l 13 Feb 2024 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – May 2026 | 130 mg/l 7 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Oct 2023 – May 2026 | 0.00078 mg/l 7 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – May 2026 | 1.7 mg/l 7 May 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Nov 2023 – Feb 2024 | 45 mg/l 20 Feb 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Nov 2023 – Feb 2024 | 8.1 mg/l 20 Feb 2024 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Nov 2023 – Feb 2024 | 0.03 µg/l 20 Feb 2024 |
| Lead, Dissolved 0052 | River water | 2 | Nov 2023 – Feb 2024 | 0.22 µg/l 20 Feb 2024 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Nov 2023 – Feb 2024 | 0.91 µg/l 20 Feb 2024 |
| Nickel, Dissolved 3410 | River water | 2 | Nov 2023 – Feb 2024 | 3.4 µg/l 20 Feb 2024 |
| Nitrite as N 0118 | River water | 21 | Oct 2023 – May 2026 | 0.029 mg/l 7 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Oct 2023 – May 2026 | 11 mg/l 7 May 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Oct 2023 – Feb 2024 | 0.0031 µg/l 13 Feb 2024 |
| Perfluorobutanoic acid 2995 | River water | 2 | Oct 2023 – Feb 2024 | 0.0036 µg/l 13 Feb 2024 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| Perfluorodecanoic acid 8892 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Oct 2023 – Feb 2024 | below 0.005 µg/l 13 Feb 2024 |
| Perfluorododecanoic acid 8894 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Oct 2023 – Feb 2024 | 0.0016 µg/l 13 Feb 2024 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Oct 2023 – Feb 2024 | 0.0017 µg/l 13 Feb 2024 |
| Perfluorohexanoic acid 8888 | River water | 2 | Oct 2023 – Feb 2024 | 0.0036 µg/l 13 Feb 2024 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluorononanoic acid 8891 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 Feb 2024 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Oct 2023 – Feb 2024 | below 0.001 µg/l 13 Feb 2024 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 2 | Oct 2023 – Feb 2024 | 0.0019 µg/l 13 Feb 2024 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Oct 2023 – Feb 2024 | 0.0015 µg/l 13 Feb 2024 |
| Perfluorooctanoic acid 8890 | River water | 2 | Oct 2023 – Feb 2024 | 0.0024 µg/l 13 Feb 2024 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Oct 2023 – Feb 2024 | below 0.0005 µg/l 13 Feb 2024 |
| Perfluoropentanoic acid 8887 | River water | 2 | Oct 2023 – Feb 2024 | 0.0026 µg/l 13 Feb 2024 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Oct 2023 – Feb 2024 | below 0.006 µg/l 13 Feb 2024 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Oct 2023 – Feb 2024 | below 0.005 µg/l 13 Feb 2024 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Oct 2023 – Feb 2024 | below 0.004 µg/l 13 Feb 2024 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 13 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.