Cranleigh Waters at Run Common, Wonersh
EA name: CRANLEIGH WATERS AT RUN COMMON, WONERSH
Environment Agency sampling point TH-PWER0006 · 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
- 15 Jul 2026, 15:103 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 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 Environmental monitoring statutory (EU directives)
- Where
- National Grid 503610, 141920As published, to the nearest 10 m. Open in a map
- River, by its own name
- Cranleigh Waters
- River, by the map
- Not placedIts name gives Cranleigh Waters; the only line close by, 6 m away, is Littlebrook and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Environmental monitoring statutory (EU directives) (31 samples)
Monitoring (national agency policy) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
66.3%
Sampled 15 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 66.3 | 66.3% |
| 25 Jun 2026, 12:46 | 64 | 64% |
| 13 May 2026, 13:12 | 70.3 | 70.3% |
| 8 Apr 2026, 13:26 | 84.4 | 84.4% |
| 3 Mar 2026, 13:51 | 92.3 | 92.3% |
| 13 Feb 2026, 13:00 | 89.8 | 89.8% |
| 19 Jan 2026, 10:33 | 88.8 | 88.8% |
| 15 Dec 2025, 11:46 | 85.9 | 85.9% |
| 28 Nov 2025, 15:46 | 87.4 | 87.4% |
| 7 Oct 2025, 15:32 | 69.6 | 69.6% |
| 2 Sep 2025, 13:16 | 74.9 | 74.9% |
| 4 Aug 2025, 12:32 | 65.7 | 65.7% |
| 25 Jul 2025, 15:26 | 77.5 | 77.5% |
| 5 Jun 2025, 12:58 | 70.5 | 70.5% |
| 13 May 2025, 11:58 | 68 | 68% |
| 3 Apr 2025, 12:10 | 85.5 | 85.5% |
| 19 Mar 2025, 13:45 | 89.4 | 89.4% |
| 7 Feb 2025, 11:36 | 89.3 | 89.3% |
| 16 Jan 2025, 12:57 | 91.5 | 91.5% |
| 29 Nov 2024, 16:18 | 88.5 | 88.5% |
| 13 Nov 2024, 13:23 | 76.5 | 76.5% |
| 29 Oct 2024, 12:40 | 79.7 | 79.7% |
| 8 Aug 2024, 09:20 | 68.2 | 68.2% |
| 31 Jul 2024, 11:04 | 67.8 | 67.8% |
| 25 Jun 2024, 14:27 | 81 | 81% |
| 9 May 2024, 16:02 | 96 | 96% |
| 4 Apr 2024, 14:22 | 88.7 | 88.7% |
| 1 Mar 2024, 12:12 | 91.8 | 91.8% |
| 13 Feb 2024, 14:41 | 93.8 | 93.8% |
| 30 Jan 2024, 13:17 | 91.4 | 91.4% |
| 5 Dec 2023, 13:07 | 83.1 | 83.1% |
| 7 Nov 2023, 15:11 | 86.7 | 86.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.87 mg/l
Sampled 15 Jul 2026, 3 months ago · 32 results banked
Every result (32)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 5.87 | 5.87 mg/l |
| 25 Jun 2026, 12:46 | 5.43 | 5.43 mg/l |
| 13 May 2026, 13:12 | 7.58 | 7.58 mg/l |
| 8 Apr 2026, 13:26 | 8.75 | 8.75 mg/l |
| 3 Mar 2026, 13:51 | 10.5 | 10.5 mg/l |
| 13 Feb 2026, 13:00 | 10.6 | 10.6 mg/l |
| 19 Jan 2026, 10:33 | 10.5 | 10.5 mg/l |
| 15 Dec 2025, 11:46 | 10 | 10 mg/l |
| 28 Nov 2025, 15:46 | 9.99 | 9.99 mg/l |
| 7 Oct 2025, 15:32 | 7.28 | 7.28 mg/l |
| 2 Sep 2025, 13:16 | 7.4 | 7.4 mg/l |
| 4 Aug 2025, 12:32 | 6.29 | 6.29 mg/l |
| 25 Jul 2025, 15:26 | 7.2 | 7.2 mg/l |
| 5 Jun 2025, 12:58 | 7.12 | 7.12 mg/l |
| 13 May 2025, 11:58 | 6.68 | 6.68 mg/l |
| 3 Apr 2025, 12:10 | 9.26 | 9.26 mg/l |
| 19 Mar 2025, 13:45 | 10.6 | 10.6 mg/l |
| 7 Feb 2025, 11:36 | 11.4 | 11.4 mg/l |
| 16 Jan 2025, 12:57 | 11.2 | 11.2 mg/l |
| 29 Nov 2024, 16:18 | 10.8 | 10.8 mg/l |
| 13 Nov 2024, 13:23 | 8.6 | 8.6 mg/l |
| 29 Oct 2024, 12:40 | 8.43 | 8.43 mg/l |
| 8 Aug 2024, 09:20 | 6.6 | 6.6 mg/l |
| 31 Jul 2024, 11:04 | 6.14 | 6.14 mg/l |
| 25 Jun 2024, 14:27 | 7.51 | 7.51 mg/l |
| 9 May 2024, 16:02 | 9.63 | 9.63 mg/l |
| 4 Apr 2024, 14:22 | 9.69 | 9.69 mg/l |
| 1 Mar 2024, 12:12 | 11 | 11 mg/l |
| 13 Feb 2024, 14:41 | 11.3 | 11.3 mg/l |
| 30 Jan 2024, 13:17 | 10.9 | 10.9 mg/l |
| 5 Dec 2023, 13:07 | 10.1 | 10.1 mg/l |
| 7 Nov 2023, 15:11 | 9.79 | 9.79 mg/l |
Water temperature
code 0076 · °C
21.2 °C
Sampled 15 Jul 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 21.2 | 21.2 °C |
| 25 Jun 2026, 12:46 | 23.5 | 23.5 °C |
| 13 May 2026, 13:12 | 11.9 | 11.9 °C |
| 8 Apr 2026, 13:26 | 13.6 | 13.6 °C |
| 3 Mar 2026, 13:51 | 9.4 | 9.4 °C |
| 13 Feb 2026, 13:00 | 8.1 | 8.1 °C |
| 19 Jan 2026, 10:33 | 8 | 8 °C |
| 15 Dec 2025, 11:46 | 8.6 | 8.6 °C |
| 28 Nov 2025, 15:46 | 9.4 | 9.4 °C |
| 7 Oct 2025, 15:32 | 13.2 | 13.2 °C |
| 2 Sep 2025, 13:16 | 15.8 | 15.8 °C |
| 4 Aug 2025, 12:32 | 17.3 | 17.3 °C |
| 25 Jul 2025, 15:26 | 18.8 | 18.8 °C |
| 5 Jun 2025, 12:58 | 14.8 | 14.8 °C |
| 13 May 2025, 11:58 | 16.1 | 16.1 °C |
| 3 Apr 2025, 12:10 | 11.7 | 11.7 °C |
| 19 Mar 2025, 13:45 | 7.9 | 7.9 °C |
| 7 Feb 2025, 11:36 | 4.9 | 4.9 °C |
| 16 Jan 2025, 12:57 | 6.5 | 6.5 °C |
| 29 Nov 2024, 16:18 | 6.9 | 6.9 °C |
| 13 Nov 2024, 13:23 | 10.1 | 10.1 °C |
| 29 Oct 2024, 12:40 | 12.7 | 12.7 °C |
| 8 Aug 2024, 09:20 | 16.8 | 16.8 °C |
| 31 Jul 2024, 11:04 | 20.1 | 20.1 °C |
| 25 Jun 2024, 14:27 | 18.9 | 18.9 °C |
| 9 May 2024, 16:02 | 15.1 | 15.1 °C |
| 4 Apr 2024, 14:22 | 11.3 | 11.3 °C |
| 1 Mar 2024, 12:12 | 7.3 | 7.3 °C |
| 13 Feb 2024, 14:41 | 7.3 | 7.3 °C |
| 30 Jan 2024, 13:17 | 7.5 | 7.5 °C |
| 5 Dec 2023, 13:07 | 7 | 7 °C |
| 7 Nov 2023, 15:11 | 9.9 | 9.9 °C |
| 6 Oct 2023, 14:21 | 15.3 | 15.3 °C |
pH
code 0061
6.96
Sampled 15 Jul 2026, 3 months ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 6.96 | 6.96 |
| 25 Jun 2026, 12:46 | 6.99 | 6.99 |
| 13 May 2026, 13:12 | 7.14 | 7.14 |
| 8 Apr 2026, 13:26 | 7.78 | 7.78 |
| 3 Mar 2026, 13:51 | 7.66 | 7.66 |
| 13 Feb 2026, 13:00 | 7.34 | 7.34 |
| 19 Jan 2026, 10:33 | 7.24 | 7.24 |
| 15 Dec 2025, 11:46 | 7.36 | 7.36 |
| 28 Nov 2025, 15:46 | 7.42 | 7.42 |
| 7 Oct 2025, 15:32 | 7.24 | 7.24 |
| 2 Sep 2025, 13:16 | 7.08 | 7.08 |
| 4 Aug 2025, 12:32 | 7.35 | 7.35 |
| 25 Jul 2025, 15:26 | 7.05 | 7.05 |
| 5 Jun 2025, 12:58 | 7.02 | 7.02 |
| 13 May 2025, 11:58 | 7.16 | 7.16 |
| 3 Apr 2025, 12:10 | 7.53 | 7.53 |
| 19 Mar 2025, 13:45 | 7.42 | 7.42 |
| 7 Feb 2025, 11:36 | 7.37 | 7.37 |
| 16 Jan 2025, 12:57 | 7.54 | 7.54 |
| 29 Nov 2024, 16:18 | 7.29 | 7.29 |
| 13 Nov 2024, 13:23 | 7.3 | 7.3 |
| 29 Oct 2024, 12:40 | 7.29 | 7.29 |
| 8 Aug 2024, 09:20 | 7.13 | 7.13 |
| 31 Jul 2024, 11:04 | 7.61 | 7.61 |
| 25 Jun 2024, 14:27 | 8.14 | 8.14 |
| 9 May 2024, 16:02 | 7.53 | 7.53 |
| 4 Apr 2024, 14:22 | 7.45 | 7.45 |
| 1 Mar 2024, 12:12 | 7.18 | 7.18 |
| 13 Feb 2024, 14:41 | 7.4 | 7.4 |
| 30 Jan 2024, 13:17 | 7.44 | 7.44 |
| 5 Dec 2023, 13:07 | 7.3 | 7.3 |
| 7 Nov 2023, 15:11 | 7.25 | 7.25 |
| 6 Oct 2023, 14:21 | 7.16 | 7.16 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.055 mg/l
Sampled 15 Jul 2026, 3 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 0.055 | 0.055 mg/l |
| 25 Jun 2026, 12:46 | 0.068 | 0.068 mg/l |
| 13 May 2026, 13:12 | 0.12 | 0.12 mg/l |
| 8 Apr 2026, 13:26 | 0.056 | 0.056 mg/l |
| 3 Mar 2026, 13:51 | 0.035 | 0.035 mg/l |
| 13 Feb 2026, 13:00 | 0.06 | 0.06 mg/l |
| 19 Jan 2026, 10:33 | 0.056 | 0.056 mg/l |
| 15 Dec 2025, 11:46 | 0.076 | 0.076 mg/l |
| 28 Nov 2025, 15:46 | 0.046 | 0.046 mg/l |
| 7 Oct 2025, 15:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2025, 13:16 | 0.59 | 0.59 mg/l |
| 4 Aug 2025, 12:32 | 0.04 | 0.04 mg/l |
| 25 Jul 2025, 15:26 | 0.041 | 0.041 mg/l |
| 5 Jun 2025, 12:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2025, 11:58 | 0.28 | 0.28 mg/l |
| 19 Mar 2025, 13:45 | 0.44 | 0.44 mg/l |
| 7 Feb 2025, 11:36 | 0.51 | 0.51 mg/l |
| 16 Jan 2025, 12:57 | 0.29 | 0.29 mg/l |
| 29 Nov 2024, 16:18 | 0.1 | 0.1 mg/l |
| 13 Nov 2024, 13:23 | 0.071 | 0.071 mg/l |
| 29 Oct 2024, 12:40 | 0.052 | 0.052 mg/l |
| 8 Aug 2024, 09:20 | 0.049 | 0.049 mg/l |
| 31 Jul 2024, 11:04 | 0.053 | 0.053 mg/l |
| 25 Jun 2024, 14:27 | 0.051 | 0.051 mg/l |
| 1 Mar 2024, 12:12 | 0.17 | 0.17 mg/l |
| 13 Feb 2024, 14:41 | 0.039 | 0.039 mg/l |
| 30 Jan 2024, 13:17 | 0.067 | 0.067 mg/l |
| 5 Dec 2023, 13:07 | 0.042 | 0.042 mg/l |
| 7 Nov 2023, 15:11 | 0.034 | 0.034 mg/l |
| 6 Oct 2023, 14:21 | 0.038 | 0.038 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
25.9 mg/l
Sampled 15 Jul 2026, 3 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 25.9 | 25.9 mg/l |
| 25 Jun 2026, 12:46 | 17.9 | 17.9 mg/l |
| 13 May 2026, 13:12 | 17.8 | 17.8 mg/l |
| 8 Apr 2026, 13:26 | 11.9 | 11.9 mg/l |
| 3 Mar 2026, 13:51 | 2.58 | 2.58 mg/l |
| 13 Feb 2026, 13:00 | 1.89 | 1.89 mg/l |
| 19 Jan 2026, 10:33 | 3.28 | 3.28 mg/l |
| 15 Dec 2025, 11:46 | 5.75 | 5.75 mg/l |
| 28 Nov 2025, 15:46 | 7.55 | 7.55 mg/l |
| 7 Oct 2025, 15:32 | 8.85 | 8.85 mg/l |
| 2 Sep 2025, 13:16 | 12.8 | 12.8 mg/l |
| 4 Aug 2025, 12:32 | 14 | 14 mg/l |
| 25 Jul 2025, 15:26 | 17 | 17 mg/l |
| 5 Jun 2025, 12:58 | 21.9 | 21.9 mg/l |
| 13 May 2025, 11:58 | 15.7 | 15.7 mg/l |
| 19 Mar 2025, 13:45 | 7.7 | 7.7 mg/l |
| 7 Feb 2025, 11:36 | 3.35 | 3.35 mg/l |
| 16 Jan 2025, 12:57 | 3.36 | 3.36 mg/l |
| 29 Nov 2024, 16:18 | 2.68 | 2.68 mg/l |
| 13 Nov 2024, 13:23 | 10.9 | 10.9 mg/l |
| 29 Oct 2024, 12:40 | 5.35 | 5.35 mg/l |
| 8 Aug 2024, 09:20 | 22 | 22 mg/l |
| 31 Jul 2024, 11:04 | 15 | 15 mg/l |
| 25 Jun 2024, 14:27 | 15.9 | 15.9 mg/l |
| 1 Mar 2024, 12:12 | 0.987 | 0.987 mg/l |
| 13 Feb 2024, 14:41 | 2.69 | 2.69 mg/l |
| 30 Jan 2024, 13:17 | 3.07 | 3.07 mg/l |
| 5 Dec 2023, 13:07 | 1.79 | 1.79 mg/l |
| 7 Nov 2023, 15:11 | 3.38 | 3.38 mg/l |
| 6 Oct 2023, 14:21 | 18.9 | 18.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.095 mg/l
Sampled 15 Jul 2026, 3 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 0.095 | 0.095 mg/l |
| 25 Jun 2026, 12:46 | 0.12 | 0.12 mg/l |
| 13 May 2026, 13:12 | 0.12 | 0.12 mg/l |
| 8 Apr 2026, 13:26 | 0.15 | 0.15 mg/l |
| 3 Mar 2026, 13:51 | 0.11 | 0.11 mg/l |
| 13 Feb 2026, 13:00 | 0.089 | 0.089 mg/l |
| 19 Jan 2026, 10:33 | 0.091 | 0.091 mg/l |
| 15 Dec 2025, 11:46 | 0.11 | 0.11 mg/l |
| 28 Nov 2025, 15:46 | 0.092 | 0.092 mg/l |
| 7 Oct 2025, 15:32 | 0.11 | 0.11 mg/l |
| 2 Sep 2025, 13:16 | 0.1 | 0.1 mg/l |
| 4 Aug 2025, 12:32 | 0.1 | 0.1 mg/l |
| 25 Jul 2025, 15:26 | 0.13 | 0.13 mg/l |
| 5 Jun 2025, 12:58 | 0.13 | 0.13 mg/l |
| 13 May 2025, 11:58 | 0.2 | 0.2 mg/l |
| 19 Mar 2025, 13:45 | 0.3 | 0.3 mg/l |
| 7 Feb 2025, 11:36 | 0.11 | 0.11 mg/l |
| 16 Jan 2025, 12:57 | 0.11 | 0.11 mg/l |
| 29 Nov 2024, 16:18 | 0.11 | 0.11 mg/l |
| 13 Nov 2024, 13:23 | 0.089 | 0.089 mg/l |
| 29 Oct 2024, 12:40 | 0.093 | 0.093 mg/l |
| 8 Aug 2024, 09:20 | 0.067 | 0.067 mg/l |
| 31 Jul 2024, 11:04 | 0.076 | 0.076 mg/l |
| 25 Jun 2024, 14:27 | 0.068 | 0.068 mg/l |
| 1 Mar 2024, 12:12 | 0.083 | 0.083 mg/l |
| 13 Feb 2024, 14:41 | 0.1 | 0.1 mg/l |
| 30 Jan 2024, 13:17 | 0.17 | 0.17 mg/l |
| 5 Dec 2023, 13:07 | 0.11 | 0.11 mg/l |
| 7 Nov 2023, 15:11 | 0.1 | 0.1 mg/l |
| 6 Oct 2023, 14:21 | 0.79 | 0.79 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
705 µS/cm
Sampled 15 Jul 2026, 3 months ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Jul 2026, 15:10 | 705 | 705 µS/cm |
| 25 Jun 2026, 12:46 | 609 | 609 µS/cm |
| 13 May 2026, 13:12 | 558 | 558 µS/cm |
| 8 Apr 2026, 13:26 | 488 | 488 µS/cm |
| 3 Mar 2026, 13:51 | 297 | 297 µS/cm |
| 13 Feb 2026, 13:00 | 254 | 254 µS/cm |
| 19 Jan 2026, 10:33 | 287 | 287 µS/cm |
| 15 Dec 2025, 11:46 | 360 | 360 µS/cm |
| 28 Nov 2025, 15:46 | 404 | 404 µS/cm |
| 7 Oct 2025, 15:32 | 473 | 473 µS/cm |
| 2 Sep 2025, 13:16 | 482 | 482 µS/cm |
| 4 Aug 2025, 12:32 | 507 | 507 µS/cm |
| 25 Jul 2025, 15:26 | 573 | 573 µS/cm |
| 5 Jun 2025, 12:58 | 640 | 640 µS/cm |
| 13 May 2025, 11:58 | 582 | 582 µS/cm |
| 3 Apr 2025, 12:10 | 485 | 485 µS/cm |
| 19 Mar 2025, 13:45 | 435 | 435 µS/cm |
| 7 Feb 2025, 11:36 | 326 | 326 µS/cm |
| 16 Jan 2025, 12:57 | 339 | 339 µS/cm |
| 29 Nov 2024, 16:18 | 260 | 260 µS/cm |
| 13 Nov 2024, 13:23 | 471 | 471 µS/cm |
| 29 Oct 2024, 12:40 | 375 | 375 µS/cm |
| 8 Aug 2024, 09:20 | 629 | 629 µS/cm |
| 31 Jul 2024, 11:04 | 644 | 644 µS/cm |
| 25 Jun 2024, 14:27 | 573 | 573 µS/cm |
| 1 Mar 2024, 12:12 | 209 | 209 µS/cm |
| 13 Feb 2024, 14:41 | 278 | 278 µS/cm |
| 30 Jan 2024, 13:17 | 309 | 309 µS/cm |
| 5 Dec 2023, 13:07 | 215 | 215 µS/cm |
| 7 Nov 2023, 15:11 | 283 | 283 µS/cm |
| 6 Oct 2023, 14:21 | 592 | 592 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 32 | Nov 2023 – Jul 2026 | 66.3% 15 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 32 | Nov 2023 – Jul 2026 | 5.87 mg/l 15 Jul 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Jul 2026 | 21.2 °C 15 Jul 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Jul 2026 | 6.96 15 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 30 | Oct 2023 – Jul 2026 | 0.055 mg/l 15 Jul 2026 |
| Nitrate as N 0117 | River water | 30 | Oct 2023 – Jul 2026 | 25.9 mg/l 15 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 30 | Oct 2023 – Jul 2026 | 0.095 mg/l 15 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Jul 2026 | 705 µS/cm 15 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 30 | Oct 2023 – Jul 2026 | 38 mg/l 15 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 30 | Oct 2023 – Jul 2026 | 0.00021 mg/l 15 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Oct 2023 – Mar 2026 | 1.5 mg/l 3 Mar 2026 |
| Nitrite as N 0118 | River water | 30 | Oct 2023 – Jul 2026 | 0.095 mg/l 15 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 30 | Oct 2023 – Jul 2026 | 26 mg/l 15 Jul 2026 |
| Phosphorus, Total as P 0348 | River water | 24 | Jun 2024 – Jul 2026 | 0.12 mg/l 15 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.