Burstow Stream at Meathgreen Bridge, Horley
EA name: BURSTOW STREAM AT MEATHGREEN BRIDGE, HOR (also listed as “BURSTOW STREAM AT MEATHGREEN BRIDGE, HORLEY”)
Environment Agency sampling point TH-PMLR0003 · 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
- 5 Aug 2026, 10:2757 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 28 since 12 Jan 2024 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 527510, 145120As published, to the nearest 10 m. Open in a map
- River, by its own name
- Burstow Stream
- River, by the map
- Burstow StreamPlaced on the river its name gives, 8 m from the line.
- Next gauge downstream
- Kinnersley Manor On the River Mole · 3.1 km along the river
- Nearest gauge upstream
- Bonehurst Bridge On the Burstow Stream · 1.4 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (17 samples)
Monitoring (national agency policy) (11 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
68%
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 68 | 68% |
| 20 Jul 2026, 10:35 | 75.9 | 75.9% |
| 24 Jun 2026, 10:35 | 64.4 | 64.4% |
| 6 May 2026, 10:40 | 72.2 | 72.2% |
| 21 Apr 2026, 13:11 | 76.7 | 76.7% |
| 9 Mar 2026, 10:02 | 81.4 | 81.4% |
| 23 Feb 2026, 13:17 | 86.7 | 86.7% |
| 13 Jan 2026, 13:27 | 83.2 | 83.2% |
| 4 Dec 2025, 14:34 | 78.3 | 78.3% |
| 6 Nov 2025, 10:39 | 62.6 | 62.6% |
| 13 Oct 2025, 11:26 | 63.3 | 63.3% |
| 3 Sep 2025, 14:33 | 57 | 57% |
| 13 Aug 2025, 11:24 | 56.7 | 56.7% |
| 11 Jul 2025, 13:06 | 55.4 | 55.4% |
| 12 Jun 2025, 09:14 | 50.6 | 50.6% |
| 27 May 2025, 12:56 | 62.5 | 62.5% |
| 8 Apr 2025, 13:31 | 81 | 81% |
| 11 Mar 2025, 14:38 | 78.9 | 78.9% |
| 25 Feb 2025, 15:53 | 82.4 | 82.4% |
| 28 Jan 2025, 12:36 | 85.2 | 85.2% |
| 12 Dec 2024, 14:11 | 83.1 | 83.1% |
| 26 Nov 2024, 13:44 | 79.8 | 79.8% |
| 24 Oct 2024, 15:13 | 76.6 | 76.6% |
| 24 Sep 2024, 14:30 | 61.3 | 61.3% |
| 30 Aug 2024, 11:51 | 61.3 | 61.3% |
| 19 Jul 2024, 15:04 | 59.5 | 59.5% |
| 17 Jun 2024, 15:47 | 61 | 61% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.28 mg/l
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 6.28 | 6.28 mg/l |
| 20 Jul 2026, 10:35 | 7.46 | 7.46 mg/l |
| 24 Jun 2026, 10:35 | 5.64 | 5.64 mg/l |
| 6 May 2026, 10:40 | 7.54 | 7.54 mg/l |
| 21 Apr 2026, 13:11 | 8.36 | 8.36 mg/l |
| 9 Mar 2026, 10:02 | 9.37 | 9.37 mg/l |
| 23 Feb 2026, 13:17 | 9.96 | 9.96 mg/l |
| 13 Jan 2026, 13:27 | 9.99 | 9.99 mg/l |
| 4 Dec 2025, 14:34 | 9.15 | 9.15 mg/l |
| 6 Nov 2025, 10:39 | 6.52 | 6.52 mg/l |
| 13 Oct 2025, 11:26 | 6.61 | 6.61 mg/l |
| 3 Sep 2025, 14:33 | 5.45 | 5.45 mg/l |
| 13 Aug 2025, 11:24 | 5.24 | 5.24 mg/l |
| 11 Jul 2025, 13:06 | 5.02 | 5.02 mg/l |
| 12 Jun 2025, 09:14 | 4.99 | 4.99 mg/l |
| 27 May 2025, 12:56 | 6.34 | 6.34 mg/l |
| 8 Apr 2025, 13:31 | 8.83 | 8.83 mg/l |
| 11 Mar 2025, 14:38 | 9.06 | 9.06 mg/l |
| 25 Feb 2025, 15:53 | 9.53 | 9.53 mg/l |
| 28 Jan 2025, 12:36 | 10.3 | 10.3 mg/l |
| 12 Dec 2024, 14:11 | 9.92 | 9.92 mg/l |
| 26 Nov 2024, 13:44 | 9.25 | 9.25 mg/l |
| 24 Oct 2024, 15:13 | 8.18 | 8.18 mg/l |
| 24 Sep 2024, 14:30 | 6.03 | 6.03 mg/l |
| 30 Aug 2024, 11:51 | 6.02 | 6.02 mg/l |
| 19 Jul 2024, 15:04 | 5.41 | 5.41 mg/l |
| 17 Jun 2024, 15:47 | 6.06 | 6.06 mg/l |
Water temperature
code 0076 · °C
19.1 °C
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 19.1 | 19.1 °C |
| 20 Jul 2026, 10:35 | 16.1 | 16.1 °C |
| 24 Jun 2026, 10:35 | 21.8 | 21.8 °C |
| 6 May 2026, 10:40 | 13.3 | 13.3 °C |
| 21 Apr 2026, 13:11 | 11.4 | 11.4 °C |
| 9 Mar 2026, 10:02 | 9.1 | 9.1 °C |
| 23 Feb 2026, 13:17 | 9.2 | 9.2 °C |
| 13 Jan 2026, 13:27 | 7.4 | 7.4 °C |
| 4 Dec 2025, 14:34 | 8.5 | 8.5 °C |
| 6 Nov 2025, 10:39 | 13.4 | 13.4 °C |
| 13 Oct 2025, 11:26 | 13.3 | 13.3 °C |
| 3 Sep 2025, 14:33 | 17.4 | 17.4 °C |
| 13 Aug 2025, 11:24 | 19.1 | 19.1 °C |
| 11 Jul 2025, 13:06 | 20 | 20 °C |
| 12 Jun 2025, 09:14 | 15.9 | 15.9 °C |
| 27 May 2025, 12:56 | 14.6 | 14.6 °C |
| 8 Apr 2025, 13:31 | 11.4 | 11.4 °C |
| 11 Mar 2025, 14:38 | 9.2 | 9.2 °C |
| 25 Feb 2025, 15:53 | 8.9 | 8.9 °C |
| 28 Jan 2025, 12:36 | 7.2 | 7.2 °C |
| 12 Dec 2024, 14:11 | 7.6 | 7.6 °C |
| 26 Nov 2024, 13:44 | 8.8 | 8.8 °C |
| 24 Oct 2024, 15:13 | 12.3 | 12.3 °C |
| 24 Sep 2024, 14:30 | 16 | 16 °C |
| 30 Aug 2024, 11:51 | 16.1 | 16.1 °C |
| 19 Jul 2024, 15:04 | 19.9 | 19.9 °C |
| 17 Jun 2024, 15:47 | 15.6 | 15.6 °C |
pH
code 0061
7.43
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 7.43 | 7.43 |
| 20 Jul 2026, 10:35 | 7.51 | 7.51 |
| 24 Jun 2026, 10:35 | 7.36 | 7.36 |
| 6 May 2026, 10:40 | 7.55 | 7.55 |
| 21 Apr 2026, 13:11 | 7.47 | 7.47 |
| 9 Mar 2026, 10:02 | 7.4 | 7.4 |
| 23 Feb 2026, 13:17 | 7.65 | 7.65 |
| 13 Jan 2026, 13:27 | 7.29 | 7.29 |
| 4 Dec 2025, 14:34 | 7.26 | 7.26 |
| 6 Nov 2025, 10:39 | 7.3 | 7.3 |
| 13 Oct 2025, 11:26 | 7.53 | 7.53 |
| 3 Sep 2025, 14:33 | 7.34 | 7.34 |
| 13 Aug 2025, 11:24 | 7.27 | 7.27 |
| 11 Jul 2025, 13:06 | 7.01 | 7.01 |
| 12 Jun 2025, 09:14 | 7.36 | 7.36 |
| 27 May 2025, 12:56 | 7.32 | 7.32 |
| 8 Apr 2025, 13:31 | 7.68 | 7.68 |
| 11 Mar 2025, 14:38 | 7.46 | 7.46 |
| 25 Feb 2025, 15:53 | 7.32 | 7.32 |
| 28 Jan 2025, 12:36 | 7.33 | 7.33 |
| 12 Dec 2024, 14:11 | 7.43 | 7.43 |
| 26 Nov 2024, 13:44 | 7.27 | 7.27 |
| 24 Oct 2024, 15:13 | 7.33 | 7.33 |
| 24 Sep 2024, 14:30 | 7.08 | 7.08 |
| 30 Aug 2024, 11:51 | 7.27 | 7.27 |
| 19 Jul 2024, 15:04 | 7.15 | 7.15 |
| 17 Jun 2024, 15:47 | 7.21 | 7.21 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.05 mg/l
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 0.05 | 0.05 mg/l |
| 20 Jul 2026, 10:35 | 0.04 | 0.04 mg/l |
| 24 Jun 2026, 10:35 | 0.078 | 0.078 mg/l |
| 6 May 2026, 10:40 | 0.1 | 0.1 mg/l |
| 21 Apr 2026, 13:11 | 0.081 | 0.081 mg/l |
| 9 Mar 2026, 10:02 | 0.11 | 0.11 mg/l |
| 23 Feb 2026, 13:17 | 0.14 | 0.14 mg/l |
| 13 Jan 2026, 13:27 | 0.25 | 0.25 mg/l |
| 4 Dec 2025, 14:34 | 0.32 | 0.32 mg/l |
| 6 Nov 2025, 10:39 | 0.05 | 0.05 mg/l |
| 13 Oct 2025, 11:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2025, 14:33 | 0.25 | 0.25 mg/l |
| 13 Aug 2025, 11:24 | 0.046 | 0.046 mg/l |
| 11 Jul 2025, 13:06 | 0.092 | 0.092 mg/l |
| 12 Jun 2025, 09:14 | 0.2 | 0.2 mg/l |
| 27 May 2025, 12:56 | 0.082 | 0.082 mg/l |
| 8 Apr 2025, 13:31 | 0.15 | 0.15 mg/l |
| 11 Mar 2025, 14:38 | 0.29 | 0.29 mg/l |
| 25 Feb 2025, 15:53 | 0.29 | 0.29 mg/l |
| 28 Jan 2025, 12:36 | 0.16 | 0.16 mg/l |
| 12 Dec 2024, 14:11 | 0.14 | 0.14 mg/l |
| 26 Nov 2024, 13:44 | 0.19 | 0.19 mg/l |
| 24 Oct 2024, 15:13 | 0.14 | 0.14 mg/l |
| 24 Sep 2024, 14:30 | 0.17 | 0.17 mg/l |
| 30 Aug 2024, 11:51 | 0.055 | 0.055 mg/l |
| 19 Jul 2024, 15:04 | 0.078 | 0.078 mg/l |
| 17 Jun 2024, 15:47 | 0.13 | 0.13 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
18.9 mg/l
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 18.9 | 18.9 mg/l |
| 20 Jul 2026, 10:35 | 17 | 17 mg/l |
| 24 Jun 2026, 10:35 | 11.9 | 11.9 mg/l |
| 6 May 2026, 10:40 | 9.72 | 9.72 mg/l |
| 21 Apr 2026, 13:11 | 8.25 | 8.25 mg/l |
| 9 Mar 2026, 10:02 | 3.27 | 3.27 mg/l |
| 23 Feb 2026, 13:17 | 2.97 | 2.97 mg/l |
| 13 Jan 2026, 13:27 | 2.68 | 2.68 mg/l |
| 4 Dec 2025, 14:34 | 4.25 | 4.25 mg/l |
| 6 Nov 2025, 10:39 | 6.84 | 6.84 mg/l |
| 13 Oct 2025, 11:26 | 18.9 | 18.9 mg/l |
| 3 Sep 2025, 14:33 | 3.98 | 3.98 mg/l |
| 13 Aug 2025, 11:24 | 18.9 | 18.9 mg/l |
| 11 Jul 2025, 13:06 | 13.9 | 13.9 mg/l |
| 12 Jun 2025, 09:14 | 11.7 | 11.7 mg/l |
| 27 May 2025, 12:56 | 12.9 | 12.9 mg/l |
| 8 Apr 2025, 13:31 | 8.2 | 8.2 mg/l |
| 11 Mar 2025, 14:38 | 3.73 | 3.73 mg/l |
| 25 Feb 2025, 15:53 | 1.47 | 1.47 mg/l |
| 28 Jan 2025, 12:36 | 1.58 | 1.58 mg/l |
| 12 Dec 2024, 14:11 | 2.36 | 2.36 mg/l |
| 26 Nov 2024, 13:44 | 1.96 | 1.96 mg/l |
| 24 Oct 2024, 15:13 | 2.33 | 2.33 mg/l |
| 24 Sep 2024, 14:30 | 2.15 | 2.15 mg/l |
| 30 Aug 2024, 11:51 | 17.9 | 17.9 mg/l |
| 19 Jul 2024, 15:04 | 7.22 | 7.22 mg/l |
| 17 Jun 2024, 15:47 | 6.66 | 6.66 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.24 mg/l
Sampled 20 Jul 2026, 2 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 Jul 2026, 10:35 | 0.24 | 0.24 mg/l |
| 24 Jun 2026, 10:35 | 0.41 | 0.41 mg/l |
| 6 May 2026, 10:40 | 0.18 | 0.18 mg/l |
| 21 Apr 2026, 13:11 | 0.13 | 0.13 mg/l |
| 9 Mar 2026, 10:02 | 0.12 | 0.12 mg/l |
| 23 Feb 2026, 13:17 | 0.095 | 0.095 mg/l |
| 13 Jan 2026, 13:27 | 0.15 | 0.15 mg/l |
| 4 Dec 2025, 14:34 | 0.14 | 0.14 mg/l |
| 6 Nov 2025, 10:39 | 0.23 | 0.23 mg/l |
| 13 Oct 2025, 11:26 | 0.54 | 0.54 mg/l |
| 3 Sep 2025, 14:33 | 0.26 | 0.26 mg/l |
| 13 Aug 2025, 11:24 | 0.69 | 0.69 mg/l |
| 11 Jul 2025, 13:06 | 0.78 | 0.78 mg/l |
| 12 Jun 2025, 09:14 | 0.54 | 0.54 mg/l |
| 27 May 2025, 12:56 | 0.49 | 0.49 mg/l |
| 8 Apr 2025, 13:31 | 0.26 | 0.26 mg/l |
| 11 Mar 2025, 14:38 | 0.16 | 0.16 mg/l |
| 25 Feb 2025, 15:53 | 0.079 | 0.079 mg/l |
| 28 Jan 2025, 12:36 | 0.15 | 0.15 mg/l |
| 12 Dec 2024, 14:11 | 0.11 | 0.11 mg/l |
| 26 Nov 2024, 13:44 | 0.16 | 0.16 mg/l |
| 24 Oct 2024, 15:13 | 0.16 | 0.16 mg/l |
| 24 Sep 2024, 14:30 | 0.19 | 0.19 mg/l |
| 30 Aug 2024, 11:51 | 0.61 | 0.61 mg/l |
| 19 Jul 2024, 15:04 | 0.3 | 0.3 mg/l |
| 17 Jun 2024, 15:47 | 0.29 | 0.29 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
918 µS/cm
Sampled 5 Aug 2026, 57 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Aug 2026, 10:27 | 918 | 918 µS/cm |
| 20 Jul 2026, 10:35 | 821 | 821 µS/cm |
| 24 Jun 2026, 10:35 | 675 | 675 µS/cm |
| 6 May 2026, 10:40 | 528 | 528 µS/cm |
| 21 Apr 2026, 13:11 | 520 | 520 µS/cm |
| 9 Mar 2026, 10:02 | 380 | 380 µS/cm |
| 23 Feb 2026, 13:17 | 367 | 367 µS/cm |
| 13 Jan 2026, 13:27 | 393 | 393 µS/cm |
| 4 Dec 2025, 14:34 | 394 | 394 µS/cm |
| 6 Nov 2025, 10:39 | 528 | 528 µS/cm |
| 13 Oct 2025, 11:26 | 700 | 700 µS/cm |
| 3 Sep 2025, 14:33 | 390 | 390 µS/cm |
| 13 Aug 2025, 11:24 | 805 | 805 µS/cm |
| 11 Jul 2025, 13:06 | 675 | 675 µS/cm |
| 12 Jun 2025, 09:14 | 643 | 643 µS/cm |
| 27 May 2025, 12:56 | 638 | 638 µS/cm |
| 8 Apr 2025, 13:31 | 506 | 506 µS/cm |
| 11 Mar 2025, 14:38 | 408 | 408 µS/cm |
| 25 Feb 2025, 15:53 | 319 | 319 µS/cm |
| 28 Jan 2025, 12:36 | 317 | 317 µS/cm |
| 12 Dec 2024, 14:11 | 348 | 348 µS/cm |
| 26 Nov 2024, 13:44 | 361 | 361 µS/cm |
| 24 Oct 2024, 15:13 | 355 | 355 µS/cm |
| 24 Sep 2024, 14:30 | 312 | 312 µS/cm |
| 30 Aug 2024, 11:51 | 710 | 710 µS/cm |
| 19 Jul 2024, 15:04 | 524 | 524 µS/cm |
| 17 Jun 2024, 15:47 | 437 | 437 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 | 27 | Jun 2024 – Aug 2026 | 68% 5 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jun 2024 – Aug 2026 | 6.28 mg/l 5 Aug 2026 |
| Temperature of Water 0076 | River water | 27 | Jun 2024 – Aug 2026 | 19.1 °C 5 Aug 2026 |
| pH 0061 | River water | 27 | Jun 2024 – Aug 2026 | 7.43 5 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jun 2024 – Aug 2026 | 0.05 mg/l 5 Aug 2026 |
| Nitrate as N 0117 | River water | 27 | Jun 2024 – Aug 2026 | 18.9 mg/l 5 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Jun 2024 – Jul 2026 | 0.24 mg/l 20 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jun 2024 – Aug 2026 | 918 µS/cm 5 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 2 | Jan 2024 – Jan 2025 | below 0.004 µg/l 28 Jan 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 2 | Jan 2024 – Jan 2025 | below 0.005 µg/l 28 Jan 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Aug 2026 | 95 mg/l 5 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Aug 2026 | 0.00049 mg/l 5 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | below 3 mg/l 6 May 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Nitrite as N 0118 | River water | 27 | Jun 2024 – Aug 2026 | 0.088 mg/l 5 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jun 2024 – Aug 2026 | 19 mg/l 5 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Jan 2025 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 2 | Jan 2024 – Jan 2025 | 0.0027 µg/l 28 Jan 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Jan 2025 – Jan 2025 | 0.0052 µg/l 28 Jan 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 2 | Jan 2024 – Jan 2025 | 0.00061 µg/l 28 Jan 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Perfluorodecanoic acid 8892 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 2 | Jan 2024 – Jan 2025 | below 0.005 µg/l 28 Jan 2025 |
| Perfluorododecanoic acid 8894 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoroheptanoic acid 8889 | River water | 2 | Jan 2024 – Jan 2025 | 0.0016 µg/l 28 Jan 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 2 | Jan 2024 – Jan 2025 | 0.0015 µg/l 28 Jan 2025 |
| Perfluorohexanoic acid 8888 | River water | 2 | Jan 2024 – Jan 2025 | 0.0026 µg/l 28 Jan 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Jan 2025 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 2 | Jan 2024 – Jan 2025 | below 0.001 µg/l 28 Jan 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Jan 2025 – Jan 2025 | 0.0018 µg/l 28 Jan 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Jan 2024 – Jan 2025 | 0.0019 µg/l 28 Jan 2025 |
| Perfluorooctanoic acid 8890 | River water | 2 | Jan 2024 – Jan 2025 | 0.003 µg/l 28 Jan 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 2 | Jan 2024 – Jan 2025 | below 0.0005 µg/l 28 Jan 2025 |
| Perfluoropentanoic acid 8887 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 2 | Jan 2024 – Jan 2025 | below 0.006 µg/l 28 Jan 2025 |
| Perfluorotridecanoic acid 2955 | River water | 2 | Jan 2024 – Jan 2025 | below 0.005 µg/l 28 Jan 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 2 | Jan 2024 – Jan 2025 | below 0.004 µg/l 28 Jan 2025 |
| Perfluoroundecanoic acid 8893 | River water | 2 | Jan 2024 – Jan 2025 | below 0.002 µg/l 28 Jan 2025 |
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.