Drain at Hesketh New Marsh - Drain
EA name: DRAIN AT HESKETH NEW MARSH - DRAIN
Environment Agency sampling point NW-SSN0022 · 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
- 29 Jul 2026, 09:272 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 29 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 341929, 424857As published, to the nearest 1 m. Open in a map
- River, by its own name
- Drain
- River, by the map
- Not placedIts name gives Drain; the only line close by, 1 m away, is New Bank Drain West and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (34 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
62.5%
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 62.5 | 62.5% |
| 30 Jun 2026, 12:29 | 2 | 2% |
| 18 May 2026, 09:58 | 124.2 | 124.2% |
| 17 Apr 2026, 11:30 | 90.3 | 90.3% |
| 16 Mar 2026, 14:15 | 108 | 108% |
| 6 Feb 2026, 08:41 | 92.8 | 92.8% |
| 16 Jan 2026, 10:46 | 56.4 | 56.4% |
| 4 Dec 2025, 10:40 | 38.5 | 38.5% |
| 13 Nov 2025, 10:20 | 49.1 | 49.1% |
| 10 Oct 2025, 11:30 | 29.2 | 29.2% |
| 10 Sep 2025, 12:06 | 91.7 | 91.7% |
| 1 Aug 2025, 09:32 | 119.1 | 119.1% |
| 31 Jul 2025, 10:16 | 135.2 | 135.2% |
| 23 Jun 2025, 10:10 | 117.8 | 117.8% |
| 30 May 2025, 12:58 | 132.4 | 132.4% |
| 4 Apr 2025, 09:57 | 70.7 | 70.7% |
| 21 Mar 2025, 12:16 | 141.4 | 141.4% |
| 21 Feb 2025, 09:56 | 86.4 | 86.4% |
| 14 Jan 2025, 10:35 | 51.6 | 51.6% |
| 9 Dec 2024, 11:41 | 81.9 | 81.9% |
| 5 Nov 2024, 11:11 | 40.1 | 40.1% |
| 16 Oct 2024, 12:20 | 76.4 | 76.4% |
| 12 Sep 2024, 13:37 | 48.9 | 48.9% |
| 9 Aug 2024, 09:53 | 83.8 | 83.8% |
| 11 Jul 2024, 15:31 | 115.4 | 115.4% |
| 4 Jun 2024, 12:12 | 148.2 | 148.2% |
| 20 May 2024, 12:24 | 194.6 | 194.6% |
| 5 Apr 2024, 11:18 | 87.4 | 87.4% |
| 8 Mar 2024, 11:15 | 84 | 84% |
| 13 Feb 2024, 10:26 | 55.1 | 55.1% |
| 29 Jan 2024, 11:44 | 60 | 60% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.39 mg/l
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 5.39 | 5.39 mg/l |
| 30 Jun 2026, 12:29 | 0.17 | 0.17 mg/l |
| 18 May 2026, 09:58 | 12.9 | 12.9 mg/l |
| 17 Apr 2026, 11:30 | 9.31 | 9.31 mg/l |
| 16 Mar 2026, 14:15 | 12.5 | 12.5 mg/l |
| 6 Feb 2026, 08:41 | 12.1 | 12.1 mg/l |
| 16 Jan 2026, 10:46 | 7.29 | 7.29 mg/l |
| 4 Dec 2025, 10:40 | 4.58 | 4.58 mg/l |
| 13 Nov 2025, 10:20 | 5.33 | 5.33 mg/l |
| 10 Oct 2025, 11:30 | 3 | 3 mg/l |
| 10 Sep 2025, 12:06 | 8.83 | 8.83 mg/l |
| 1 Aug 2025, 09:32 | 11.1 | 11.1 mg/l |
| 31 Jul 2025, 10:16 | 12.2 | 12.2 mg/l |
| 23 Jun 2025, 10:10 | 11.2 | 11.2 mg/l |
| 30 May 2025, 12:58 | 11.7 | 11.7 mg/l |
| 4 Apr 2025, 09:57 | 7.85 | 7.85 mg/l |
| 21 Mar 2025, 12:16 | 15.9 | 15.9 mg/l |
| 21 Feb 2025, 09:56 | 9.83 | 9.83 mg/l |
| 14 Jan 2025, 10:35 | 6.59 | 6.59 mg/l |
| 9 Dec 2024, 11:41 | 10.4 | 10.4 mg/l |
| 5 Nov 2024, 11:11 | 4.43 | 4.43 mg/l |
| 16 Oct 2024, 12:20 | 7.79 | 7.79 mg/l |
| 12 Sep 2024, 13:37 | 4.99 | 4.99 mg/l |
| 9 Aug 2024, 09:53 | 7.74 | 7.74 mg/l |
| 11 Jul 2024, 15:31 | 11 | 11 mg/l |
| 4 Jun 2024, 12:12 | 13.9 | 13.9 mg/l |
| 20 May 2024, 12:24 | 17.5 | 17.5 mg/l |
| 5 Apr 2024, 11:18 | 9.5 | 9.5 mg/l |
| 8 Mar 2024, 11:15 | 10.1 | 10.1 mg/l |
| 13 Feb 2024, 10:26 | 6.74 | 6.74 mg/l |
| 29 Jan 2024, 11:44 | 7.24 | 7.24 mg/l |
Water temperature
code 0076 · °C
19 °C
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 19 | 19 °C |
| 30 Jun 2026, 12:29 | 20 | 20 °C |
| 18 May 2026, 09:58 | 11.9 | 11.9 °C |
| 17 Apr 2026, 11:30 | 12.4 | 12.4 °C |
| 16 Mar 2026, 14:15 | 8.2 | 8.2 °C |
| 6 Feb 2026, 08:41 | 3.8 | 3.8 °C |
| 16 Jan 2026, 10:46 | 4.3 | 4.3 °C |
| 4 Dec 2025, 10:40 | 7.5 | 7.5 °C |
| 13 Nov 2025, 10:20 | 11.6 | 11.6 °C |
| 10 Oct 2025, 11:30 | 13.3 | 13.3 °C |
| 10 Sep 2025, 12:06 | 15.6 | 15.6 °C |
| 1 Aug 2025, 09:32 | 16.7 | 16.7 °C |
| 31 Jul 2025, 10:16 | 18.1 | 18.1 °C |
| 23 Jun 2025, 10:10 | 16.7 | 16.7 °C |
| 30 May 2025, 12:58 | 18.9 | 18.9 °C |
| 4 Apr 2025, 09:57 | 9.1 | 9.1 °C |
| 21 Mar 2025, 12:16 | 9.3 | 9.3 °C |
| 21 Feb 2025, 09:56 | 9.2 | 9.2 °C |
| 14 Jan 2025, 10:35 | 4.9 | 4.9 °C |
| 9 Dec 2024, 11:41 | 5 | 5 °C |
| 5 Nov 2024, 11:11 | 10.6 | 10.6 °C |
| 16 Oct 2024, 12:20 | 14.1 | 14.1 °C |
| 12 Sep 2024, 13:37 | 14.2 | 14.2 °C |
| 9 Aug 2024, 09:53 | 17.4 | 17.4 °C |
| 11 Jul 2024, 15:31 | 16.4 | 16.4 °C |
| 4 Jun 2024, 12:12 | 17.2 | 17.2 °C |
| 20 May 2024, 12:24 | 18.6 | 18.6 °C |
| 5 Apr 2024, 11:18 | 11.3 | 11.3 °C |
| 8 Mar 2024, 11:15 | 6.8 | 6.8 °C |
| 13 Feb 2024, 10:26 | 6.3 | 6.3 °C |
| 29 Jan 2024, 11:44 | 6.8 | 6.8 °C |
pH
code 0061
7.69
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 7.69 | 7.69 |
| 30 Jun 2026, 12:29 | 7.37 | 7.37 |
| 18 May 2026, 09:58 | 7.97 | 7.97 |
| 17 Apr 2026, 11:30 | 7.26 | 7.26 |
| 16 Mar 2026, 14:15 | 7.31 | 7.31 |
| 6 Feb 2026, 08:41 | 8.02 | 8.02 |
| 16 Jan 2026, 10:46 | 7.32 | 7.32 |
| 4 Dec 2025, 10:40 | 7.16 | 7.16 |
| 13 Nov 2025, 10:20 | 7.44 | 7.44 |
| 10 Oct 2025, 11:30 | 7.09 | 7.09 |
| 10 Sep 2025, 12:06 | 7.43 | 7.43 |
| 1 Aug 2025, 09:32 | 7.3 | 7.3 |
| 31 Jul 2025, 10:16 | 7.34 | 7.34 |
| 23 Jun 2025, 10:10 | 7.88 | 7.88 |
| 30 May 2025, 12:58 | 7.13 | 7.13 |
| 4 Apr 2025, 09:57 | 7.27 | 7.27 |
| 21 Mar 2025, 12:16 | 7.85 | 7.85 |
| 21 Feb 2025, 09:56 | 7.35 | 7.35 |
| 14 Jan 2025, 10:35 | 7.33 | 7.33 |
| 9 Dec 2024, 11:41 | 7.82 | 7.82 |
| 5 Nov 2024, 11:11 | 7.54 | 7.54 |
| 16 Oct 2024, 12:20 | 7.33 | 7.33 |
| 12 Sep 2024, 13:37 | 7.3 | 7.3 |
| 9 Aug 2024, 09:53 | 7.29 | 7.29 |
| 11 Jul 2024, 15:31 | 7.41 | 7.41 |
| 4 Jun 2024, 12:12 | 7.2 | 7.2 |
| 20 May 2024, 12:24 | 7.39 | 7.39 |
| 5 Apr 2024, 11:18 | 7.55 | 7.55 |
| 8 Mar 2024, 11:15 | 7.7 | 7.7 |
| 13 Feb 2024, 10:26 | 7.25 | 7.25 |
| 29 Jan 2024, 11:44 | 7.45 | 7.45 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.41 mg/l
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 0.41 | 0.41 mg/l |
| 30 Jun 2026, 12:29 | 1.1 | 1.1 mg/l |
| 18 May 2026, 09:58 | 0.082 | 0.082 mg/l |
| 17 Apr 2026, 11:30 | 0.16 | 0.16 mg/l |
| 16 Mar 2026, 14:15 | 0.32 | 0.32 mg/l |
| 6 Feb 2026, 08:41 | 0.14 | 0.14 mg/l |
| 16 Jan 2026, 10:46 | 0.16 | 0.16 mg/l |
| 4 Dec 2025, 10:40 | 0.84 | 0.84 mg/l |
| 13 Nov 2025, 10:20 | 0.33 | 0.33 mg/l |
| 10 Oct 2025, 11:30 | 0.8 | 0.8 mg/l |
| 10 Sep 2025, 12:06 | 1.1 | 1.1 mg/l |
| 1 Aug 2025, 09:32 | 0.25 | 0.25 mg/l |
| 31 Jul 2025, 10:16 | 0.28 | 0.28 mg/l |
| 23 Jun 2025, 10:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 May 2025, 12:58 | 0.69 | 0.69 mg/l |
| 4 Apr 2025, 09:57 | 1.2 | 1.2 mg/l |
| 21 Mar 2025, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Feb 2025, 09:56 | 0.17 | 0.17 mg/l |
| 14 Jan 2025, 10:35 | 1.4 | 1.4 mg/l |
| 9 Dec 2024, 11:41 | 0.17 | 0.17 mg/l |
| 5 Nov 2024, 11:11 | 1.2 | 1.2 mg/l |
| 16 Oct 2024, 12:20 | 0.29 | 0.29 mg/l |
| 12 Sep 2024, 13:37 | 0.79 | 0.79 mg/l |
| 9 Aug 2024, 09:53 | 0.1 | 0.1 mg/l |
| 11 Jul 2024, 15:31 | 0.089 | 0.089 mg/l |
| 4 Jun 2024, 12:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 May 2024, 12:24 | 0.13 | 0.13 mg/l |
| 5 Apr 2024, 11:18 | 0.086 | 0.086 mg/l |
| 8 Mar 2024, 11:15 | 0.28 | 0.28 mg/l |
| 13 Feb 2024, 10:26 | 0.43 | 0.43 mg/l |
| 29 Jan 2024, 11:44 | 0.5 | 0.5 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | <0.196 | below 0.196 mg/l (not detected above this) |
| 30 Jun 2026, 12:29 | <0.196 | below 0.196 mg/l (not detected above this) |
| 18 May 2026, 09:58 | <0.196 | below 0.196 mg/l (not detected above this) |
| 17 Apr 2026, 11:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Mar 2026, 14:15 | 1.28 | 1.28 mg/l |
| 6 Feb 2026, 08:41 | 1.49 | 1.49 mg/l |
| 16 Jan 2026, 10:46 | 2.95 | 2.95 mg/l |
| 4 Dec 2025, 10:40 | 1.19 | 1.19 mg/l |
| 13 Nov 2025, 10:20 | 0.195 | 0.195 mg/l |
| 10 Oct 2025, 11:30 | 0.505 | 0.505 mg/l |
| 10 Sep 2025, 12:06 | 0.583 | 0.583 mg/l |
| 1 Aug 2025, 09:32 | <0.196 | below 0.196 mg/l (not detected above this) |
| 31 Jul 2025, 10:16 | <0.196 | below 0.196 mg/l (not detected above this) |
| 23 Jun 2025, 10:10 | <0.196 | below 0.196 mg/l (not detected above this) |
| 30 May 2025, 12:58 | 0.185 | 0.185 mg/l |
| 4 Apr 2025, 09:57 | 0.206 | 0.206 mg/l |
| 21 Mar 2025, 12:16 | <0.196 | below 0.196 mg/l (not detected above this) |
| 21 Feb 2025, 09:56 | <0.196 | below 0.196 mg/l (not detected above this) |
| 14 Jan 2025, 10:35 | 0.371 | 0.371 mg/l |
| 9 Dec 2024, 11:41 | 0.193 | 0.193 mg/l |
| 5 Nov 2024, 11:11 | 0.176 | 0.176 mg/l |
| 16 Oct 2024, 12:20 | 0.194 | 0.194 mg/l |
| 12 Sep 2024, 13:37 | 0.448 | 0.448 mg/l |
| 9 Aug 2024, 09:53 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Jul 2024, 15:31 | <0.196 | below 0.196 mg/l (not detected above this) |
| 4 Jun 2024, 12:12 | <0.196 | below 0.196 mg/l (not detected above this) |
| 20 May 2024, 12:24 | <0.196 | below 0.196 mg/l (not detected above this) |
| 5 Apr 2024, 11:18 | 0.605 | 0.605 mg/l |
| 8 Mar 2024, 11:15 | 1.28 | 1.28 mg/l |
| 13 Feb 2024, 10:26 | 0.906 | 0.906 mg/l |
| 29 Jan 2024, 11:44 | 1.38 | 1.38 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | <0.01 | below 0.01 mg/l (not detected above this) |
| 30 Jun 2026, 12:29 | 0.027 | 0.027 mg/l |
| 18 May 2026, 09:58 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Apr 2026, 11:30 | 0.025 | 0.025 mg/l |
| 16 Mar 2026, 14:15 | 0.021 | 0.021 mg/l |
| 6 Feb 2026, 08:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Jan 2026, 10:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Dec 2025, 10:40 | 0.056 | 0.056 mg/l |
| 13 Nov 2025, 10:20 | 0.092 | 0.092 mg/l |
| 10 Oct 2025, 11:30 | 0.024 | 0.024 mg/l |
| 10 Sep 2025, 12:06 | 0.01 | 0.01 mg/l |
| 1 Aug 2025, 09:32 | <0.01 | below 0.01 mg/l (not detected above this) |
| 31 Jul 2025, 10:16 | 0.018 | 0.018 mg/l |
| 23 Jun 2025, 10:10 | 0.017 | 0.017 mg/l |
| 30 May 2025, 12:58 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Apr 2025, 09:57 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Mar 2025, 12:16 | 0.014 | 0.014 mg/l |
| 21 Feb 2025, 09:56 | 0.021 | 0.021 mg/l |
| 14 Jan 2025, 10:35 | 0.028 | 0.028 mg/l |
| 9 Dec 2024, 11:41 | 0.034 | 0.034 mg/l |
| 5 Nov 2024, 11:11 | 0.087 | 0.087 mg/l |
| 16 Oct 2024, 12:20 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Sep 2024, 13:37 | 0.044 | 0.044 mg/l |
| 9 Aug 2024, 09:53 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Jul 2024, 15:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Jun 2024, 12:12 | 0.011 | 0.011 mg/l |
| 20 May 2024, 12:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Apr 2024, 11:18 | 0.011 | 0.011 mg/l |
| 8 Mar 2024, 11:15 | 0.018 | 0.018 mg/l |
| 13 Feb 2024, 10:26 | <0.01 | below 0.01 mg/l (not detected above this) |
| 29 Jan 2024, 11:44 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
19817 µS/cm
Sampled 29 Jul 2026, 2 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 09:27 | 19817 | 19817 µS/cm |
| 30 Jun 2026, 12:29 | 18624 | 18624 µS/cm |
| 18 May 2026, 09:58 | 12446 | 12446 µS/cm |
| 17 Apr 2026, 11:30 | 10814 | 10814 µS/cm |
| 16 Mar 2026, 14:15 | 6472 | 6472 µS/cm |
| 6 Feb 2026, 08:41 | 4394 | 4394 µS/cm |
| 16 Jan 2026, 10:46 | 2314 | 2314 µS/cm |
| 4 Dec 2025, 10:40 | 2860 | 2860 µS/cm |
| 13 Nov 2025, 10:20 | 546 | 546 µS/cm |
| 10 Oct 2025, 11:30 | 7579 | 7579 µS/cm |
| 10 Sep 2025, 12:06 | 10840 | 10840 µS/cm |
| 1 Aug 2025, 09:32 | 16445 | 16445 µS/cm |
| 31 Jul 2025, 10:16 | 15503 | 15503 µS/cm |
| 23 Jun 2025, 10:10 | 8813 | 8813 µS/cm |
| 30 May 2025, 12:58 | 15241 | 15241 µS/cm |
| 4 Apr 2025, 09:57 | 12151 | 12151 µS/cm |
| 21 Mar 2025, 12:16 | 7663 | 7663 µS/cm |
| 21 Feb 2025, 09:56 | 3701 | 3701 µS/cm |
| 14 Jan 2025, 10:35 | 1101 | 1101 µS/cm |
| 9 Dec 2024, 11:41 | 373 | 373 µS/cm |
| 5 Nov 2024, 11:11 | 2401 | 2401 µS/cm |
| 16 Oct 2024, 12:20 | 2364 | 2364 µS/cm |
| 12 Sep 2024, 13:37 | 9646 | 9646 µS/cm |
| 9 Aug 2024, 09:53 | 11996 | 11996 µS/cm |
| 11 Jul 2024, 15:31 | 8793 | 8793 µS/cm |
| 4 Jun 2024, 12:12 | 8950 | 8950 µS/cm |
| 20 May 2024, 12:24 | 11859 | 11859 µS/cm |
| 5 Apr 2024, 11:18 | 2323 | 2323 µS/cm |
| 8 Mar 2024, 11:15 | 5909 | 5909 µS/cm |
| 13 Feb 2024, 10:26 | 3426 | 3426 µS/cm |
| 29 Jan 2024, 11:44 | 3866 | 3866 µS/cm |
Everything measured here
116 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 116 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Jan 2024 – Jul 2026 | 62.5% 29 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Jan 2024 – Jul 2026 | 5.39 mg/l 29 Jul 2026 |
| Temperature of Water 0076 | River water | 31 | Jan 2024 – Jul 2026 | 19 °C 29 Jul 2026 |
| pH 0061 | River water | 31 | Jan 2024 – Jul 2026 | 7.69 29 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Jan 2024 – Jul 2026 | 0.41 mg/l 29 Jul 2026 |
| Nitrate as N 0117 | River water | 31 | Jan 2024 – Jul 2026 | below 0.196 mg/l 29 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Jan 2024 – Jul 2026 | below 0.01 mg/l 29 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Jan 2024 – Jul 2026 | 19817 µS/cm 29 Jul 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 2 | Jan 2026 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 2 | Jan 2026 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Jun 2025 – Jan 2026 | below 0.001 µg/l 16 Jan 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 2 | Jan 2026 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 4 | Jun 2025 – Mar 2026 | below 0.004 µg/l 16 Mar 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 2 | Jan 2026 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 2 | Jan 2026 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 2 | Jan 2026 – Mar 2026 | below 0.004 µg/l 16 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 2 | Jan 2026 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 2 | Jan 2026 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 2 | Jan 2026 – Mar 2026 | below 0.01 µg/l 16 Mar 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 2 | Jan 2026 – Mar 2026 | below 0.004 µg/l 16 Mar 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 2 | Jan 2026 – Mar 2026 | below 0.01 µg/l 16 Mar 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 2 | Jan 2026 – Mar 2026 | below 0.004 µg/l 16 Mar 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 2 | Jan 2026 – Mar 2026 | below 0.01 µg/l 16 Mar 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Jan 2024 – Jul 2026 | 320 mg/l 29 Jul 2026 |
| Aluminium, Dissolved 6037 | River water | 8 | Apr 2025 – Jul 2026 | below 20 µg/l 29 Jul 2026 |
| Aminomethylphosphonic acid 7125 | River water | 13 | Apr 2025 – Jul 2026 | below 0.5 µg/l 29 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Jan 2024 – Jul 2026 | 0.00717 mg/l 29 Jul 2026 |
| Barium, Dissolved 9446 | River water | 8 | Apr 2025 – Jul 2026 | 180 µg/l 29 Jul 2026 |
| Boron, Dissolved 9447 | River water | 8 | Apr 2025 – Jul 2026 | 1200 µg/l 29 Jul 2026 |
| Cadmium, Dissolved 0106 | River water | 8 | Apr 2025 – Jul 2026 | below 0.01 µg/l 29 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 8 | Apr 2025 – Jul 2026 | 440 mg/l 29 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 23 | Jul 2024 – Jul 2026 | 11 mg/l 29 Jul 2026 |
| Chloride 0172 | River water | 31 | Jan 2024 – Jul 2026 | 7100 mg/l 29 Jul 2026 |
| Chromium, Dissolved 3409 | River water | 8 | Apr 2025 – Jul 2026 | below 0.5 µg/l 29 Jul 2026 |
| Copper : BLM Bioavailable 4821 | River water | 7 | Apr 2025 – Jul 2026 | 0.01 µg/l 29 Jul 2026 |
| Copper, Dissolved 6450 | River water | 8 | Apr 2025 – Jul 2026 | 0.51 µg/l 29 Jul 2026 |
| eDNA Report 3047 | River water | 3 | Aug 2024 – Jan 2025 | 1 text result 2 Jan 2025 |
| Environmental DNA Filtration 3064 | River water | 2 | Aug 2024 – Oct 2024 | DNA Analysis not required 16 Oct 2024 |
| Flow Type 2896 | River water | 29 | Jan 2024 – Jul 2026 | Ponded / Still 29 Jul 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 2 | Apr 2026 – Jul 2026 | 1 text result 29 Jul 2026 |
| Glyphosate 3007 | River water | 15 | Apr 2025 – Jul 2026 | below 0.5 µg/l 29 Jul 2026 |
| Hardness, Calcium 0163 | River water | 8 | Apr 2025 – Jul 2026 | 1100 mg/l 29 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 8 | Apr 2025 – Jul 2026 | 2830 mg/l 29 Jul 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 2 | Jan 2026 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Iron, Dissolved 6460 | River water | 8 | Apr 2025 – Jul 2026 | 46 µg/l 29 Jul 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 9 | Jul 2025 – Jul 2026 | 1 text result 29 Jul 2026 |
| Lead : BLM Bioavailable 3377 | River water | 7 | Apr 2025 – Jul 2026 | 0 µg/l 29 Jul 2026 |
| Lead, Dissolved 0052 | River water | 8 | Apr 2025 – Jul 2026 | below 0.1 µg/l 29 Jul 2026 |
| Lithium, Dissolved 4201 | River water | 8 | Apr 2025 – Jul 2026 | below 100 µg/l 29 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 8 | Apr 2025 – Jul 2026 | 420 mg/l 29 Jul 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 7 | Apr 2025 – Jul 2026 | 170 µg/l 29 Jul 2026 |
| Manganese, Dissolved 6458 | River water | 8 | Apr 2025 – Jul 2026 | 550 µg/l 29 Jul 2026 |
| Mitochondrial marker : Fish 12S 2857 | River water | 3 | Aug 2024 – Jan 2025 | Not found 2 Jan 2025 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 4 | Jun 2025 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 4 | Jun 2025 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| Nickel : BLM Bioavailable 3878 | River water | 7 | Apr 2025 – Jul 2026 | 0.17 µg/l 29 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 8 | Apr 2025 – Jul 2026 | 0.95 µg/l 29 Jul 2026 |
| Nitrite as N 0118 | River water | 31 | Jan 2024 – Jul 2026 | below 0.004 mg/l 29 Jul 2026 |
| Nitrogen, Total as N 9686 | River water | 30 | Jan 2024 – Jul 2026 | 2.7 mg/l 29 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Jan 2024 – Jul 2026 | below 0.2 mg/l 29 Jul 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 4 | Jun 2025 – Mar 2026 | 0.0051 µg/l 16 Mar 2026 |
| Perfluorobutanoic acid 2995 | River water | 4 | Jun 2025 – Mar 2026 | 0.003 µg/l 16 Mar 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 4 | Jun 2025 – Mar 2026 | 0.00091 µg/l 16 Mar 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorodecanoic acid 8892 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 4 | Jun 2025 – Mar 2026 | below 0.005 µg/l 16 Mar 2026 |
| Perfluorododecanoic acid 8894 | River water | 4 | Jun 2025 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoroheptanoic acid 8889 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 2 | Jan 2026 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorohexanoic acid 8888 | River water | 4 | Jun 2025 – Mar 2026 | 0.0012 µg/l 16 Mar 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorononanoic acid 8891 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 4 | Jun 2025 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 2 | Jan 2026 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Perfluorooctanoic acid 8890 | River water | 4 | Jun 2025 – Mar 2026 | 0.0032 µg/l 16 Mar 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 4 | Jun 2025 – Mar 2026 | below 0.0005 µg/l 16 Mar 2026 |
| Perfluoropentanoic acid 8887 | River water | 4 | Jun 2025 – Mar 2026 | 0.0048 µg/l 16 Mar 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 4 | Jun 2025 – Mar 2026 | below 0.006 µg/l 16 Mar 2026 |
| Perfluorotridecanoic acid 2955 | River water | 4 | Jun 2025 – Mar 2026 | below 0.002 µg/l 16 Mar 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 4 | Jun 2025 – Mar 2026 | below 0.005 µg/l 16 Mar 2026 |
| Perfluoroundecanoic acid 8893 | River water | 4 | Jun 2025 – Mar 2026 | below 0.001 µg/l 16 Mar 2026 |
| Phosphorus, Total as P 0348 | River water | 30 | Jan 2024 – Jul 2026 | 0.18 mg/l 29 Jul 2026 |
| Potassium, Dissolved 0209 | River water | 8 | Apr 2025 – Jul 2026 | 130 mg/l 29 Jul 2026 |
| Preparation: DNA 5923 | River water | 2 | Aug 2024 – Oct 2024 | Done 16 Oct 2024 |
| Silica, reactive as SiO2 0182 | River water | 31 | Jan 2024 – Jul 2026 | 6.5 mg/l 29 Jul 2026 |
| Sodium, Dissolved 0205 | River water | 8 | Apr 2025 – Jul 2026 | 3300 mg/l 29 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 31 | Jan 2024 – Jul 2026 | 38 mg/l 29 Jul 2026 |
| Strontium, Filtered 6693 | River water | 8 | Apr 2025 – Jul 2026 | 4000 µg/l 29 Jul 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 8 | Apr 2025 – Jul 2026 | 840 mg/l 29 Jul 2026 |
| Trifluoroacetic acid 2872 | River water | 1 | Jan 2026 – Jan 2026 | 1.7 µg/l 16 Jan 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 7 | Apr 2025 – Jul 2026 | 0.36 µg/l 29 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 8 | Apr 2025 – Jul 2026 | 1.5 µg/l 29 Jul 2026 |
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.