War Brook at Minor Road Bridge, Yeaton
EA name: WAR BROOK AT MINOR ROAD BRIDGE, YEATON
Environment Agency sampling point MD-30015185 · 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
- 10 Sep 2026, 09:2121 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 31 since 2 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 343125, 319784As published, to the nearest 1 m. Open in a map
- River, by its own name
- War Brook
- River, by the map
- War BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Yeaton On the River Perry · 1.5 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (18 samples)
Monitoring (national agency policy) (10 samples)
Unplanned reactive monitoring (pollution incidents) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
82.7%
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 82.7 | 82.7% |
| 21 Aug 2026, 13:04 | 80.1 | 80.1% |
| 3 Jul 2026, 09:50 | 88.9 | 88.9% |
| 5 Jun 2026, 12:30 | 84.4 | 84.4% |
| 8 May 2026, 09:53 | 92.2 | 92.2% |
| 7 Apr 2026, 10:26 | 92.4 | 92.4% |
| 8 Jan 2026, 10:14 | 95.2 | 95.2% |
| 15 Dec 2025, 10:50 | 89.4 | 89.4% |
| 10 Nov 2025, 10:43 | 77.9 | 77.9% |
| 8 Oct 2025, 08:41 | 83.6 | 83.6% |
| 3 Sep 2025, 10:39 | 81.2 | 81.2% |
| 15 Aug 2025, 10:33 | 87 | 87% |
| 1 Jul 2025, 12:11 | 88.6 | 88.6% |
| 12 Jun 2025, 10:59 | 87.8 | 87.8% |
| 21 May 2025, 11:46 | 100.5 | 100.5% |
| 4 Apr 2025, 10:03 | 99.7 | 99.7% |
| 11 Mar 2025, 11:34 | 98.1 | 98.1% |
| 14 Feb 2025, 10:57 | 91.7 | 91.7% |
| 20 Jan 2025, 12:23 | 92.8 | 92.8% |
| 13 Dec 2024, 09:37 | 93.3 | 93.3% |
| 20 Nov 2024, 13:56 | 88 | 88% |
| 31 Oct 2024, 09:40 | 85.2 | 85.2% |
| 19 Aug 2024, 13:46 | 82.8 | 82.8% |
| 16 Jul 2024, 14:49 | 84.9 | 84.9% |
| 17 Jun 2024, 13:30 | 96.9 | 96.9% |
| 12 Mar 2024, 13:40 | 91.2 | 91.2% |
| 7 Feb 2024, 09:34 | 91.7 | 91.7% |
| 18 Jan 2024, 14:10 | 87.9 | 87.9% |
| 12 Dec 2023, 14:19 | 85.1 | 85.1% |
| 17 Nov 2023, 12:51 | 90.2 | 90.2% |
| 2 Oct 2023, 12:24 | 79.4 | 79.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.75 mg/l
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 8.75 | 8.75 mg/l |
| 21 Aug 2026, 13:04 | 7.99 | 7.99 mg/l |
| 3 Jul 2026, 09:50 | 8.85 | 8.85 mg/l |
| 5 Jun 2026, 12:30 | 8.62 | 8.62 mg/l |
| 8 May 2026, 09:53 | 10.1 | 10.1 mg/l |
| 7 Apr 2026, 10:26 | 10.5 | 10.5 mg/l |
| 8 Jan 2026, 10:14 | 12.6 | 12.6 mg/l |
| 15 Dec 2025, 10:50 | 10.4 | 10.4 mg/l |
| 10 Nov 2025, 10:43 | 8.73 | 8.73 mg/l |
| 8 Oct 2025, 08:41 | 8.85 | 8.85 mg/l |
| 3 Sep 2025, 10:39 | 7.99 | 7.99 mg/l |
| 15 Aug 2025, 10:33 | 8.07 | 8.07 mg/l |
| 1 Jul 2025, 12:11 | 8 | 8 mg/l |
| 12 Jun 2025, 10:59 | 8.52 | 8.52 mg/l |
| 21 May 2025, 11:46 | 9.83 | 9.83 mg/l |
| 4 Apr 2025, 10:03 | 10.9 | 10.9 mg/l |
| 11 Mar 2025, 11:34 | 11.5 | 11.5 mg/l |
| 14 Feb 2025, 10:57 | 12.1 | 12.1 mg/l |
| 20 Jan 2025, 12:23 | 12.1 | 12.1 mg/l |
| 13 Dec 2024, 09:37 | 11.5 | 11.5 mg/l |
| 20 Nov 2024, 13:56 | 11 | 11 mg/l |
| 31 Oct 2024, 09:40 | 9.22 | 9.22 mg/l |
| 19 Aug 2024, 13:46 | 8.01 | 8.01 mg/l |
| 16 Jul 2024, 14:49 | 8.34 | 8.34 mg/l |
| 17 Jun 2024, 13:30 | 9.75 | 9.75 mg/l |
| 12 Mar 2024, 13:40 | 10.7 | 10.7 mg/l |
| 7 Feb 2024, 09:34 | 11.3 | 11.3 mg/l |
| 18 Jan 2024, 14:10 | 12.1 | 12.1 mg/l |
| 12 Dec 2023, 14:19 | 10.3 | 10.3 mg/l |
| 17 Nov 2023, 12:51 | 10.9 | 10.9 mg/l |
| 2 Oct 2023, 12:24 | 8.13 | 8.13 mg/l |
Water temperature
code 0076 · °C
12.7 °C
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 12.7 | 12.7 °C |
| 21 Aug 2026, 13:04 | 15.4 | 15.4 °C |
| 3 Jul 2026, 09:50 | 15.5 | 15.5 °C |
| 5 Jun 2026, 12:30 | 14.3 | 14.3 °C |
| 8 May 2026, 09:53 | 11 | 11 °C |
| 7 Apr 2026, 10:26 | 9.5 | 9.5 °C |
| 8 Jan 2026, 10:14 | 3.5 | 3.5 °C |
| 15 Dec 2025, 10:50 | 8.6 | 8.6 °C |
| 10 Nov 2025, 10:43 | 10.2 | 10.2 °C |
| 8 Oct 2025, 08:41 | 12.7 | 12.7 °C |
| 3 Sep 2025, 10:39 | 16 | 16 °C |
| 15 Aug 2025, 10:33 | 18.9 | 18.9 °C |
| 1 Jul 2025, 12:11 | 20.2 | 20.2 °C |
| 12 Jun 2025, 10:59 | 16.7 | 16.7 °C |
| 21 May 2025, 11:46 | 16.3 | 16.3 °C |
| 4 Apr 2025, 10:03 | 11.1 | 11.1 °C |
| 11 Mar 2025, 11:34 | 8.5 | 8.5 °C |
| 14 Feb 2025, 10:57 | 3.8 | 3.8 °C |
| 20 Jan 2025, 12:23 | 4.1 | 4.1 °C |
| 13 Dec 2024, 09:37 | 6.3 | 6.3 °C |
| 20 Nov 2024, 13:56 | 5.7 | 5.7 °C |
| 31 Oct 2024, 09:40 | 11.7 | 11.7 °C |
| 19 Aug 2024, 13:46 | 16.8 | 16.8 °C |
| 16 Jul 2024, 14:49 | 16.1 | 16.1 °C |
| 17 Jun 2024, 13:30 | 15 | 15 °C |
| 12 Mar 2024, 13:40 | 8.5 | 8.5 °C |
| 7 Feb 2024, 09:34 | 6.5 | 6.5 °C |
| 18 Jan 2024, 14:10 | 2.2 | 2.2 °C |
| 12 Dec 2023, 14:19 | 7.1 | 7.1 °C |
| 17 Nov 2023, 12:51 | 7 | 7 °C |
| 2 Oct 2023, 12:24 | 14.2 | 14.2 °C |
pH
code 0061
7.97
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 7.97 | 7.97 |
| 21 Aug 2026, 13:04 | 7.88 | 7.88 |
| 3 Jul 2026, 09:50 | 8.11 | 8.11 |
| 5 Jun 2026, 12:30 | 7.96 | 7.96 |
| 8 May 2026, 09:53 | 8.06 | 8.06 |
| 7 Apr 2026, 10:26 | 8.07 | 8.07 |
| 8 Jan 2026, 10:14 | 8.04 | 8.04 |
| 15 Dec 2025, 10:50 | 7.72 | 7.72 |
| 10 Nov 2025, 10:43 | 7.91 | 7.91 |
| 8 Oct 2025, 08:41 | 8.06 | 8.06 |
| 3 Sep 2025, 10:39 | 8.09 | 8.09 |
| 15 Aug 2025, 10:33 | 8.09 | 8.09 |
| 1 Jul 2025, 12:11 | 7.98 | 7.98 |
| 12 Jun 2025, 10:59 | 8 | 8 |
| 21 May 2025, 11:46 | 8.13 | 8.13 |
| 4 Apr 2025, 10:03 | 8.14 | 8.14 |
| 11 Mar 2025, 11:34 | 8 | 8 |
| 14 Feb 2025, 10:57 | 7.84 | 7.84 |
| 20 Jan 2025, 12:23 | 7.62 | 7.62 |
| 13 Dec 2024, 09:37 | 7.72 | 7.72 |
| 20 Nov 2024, 13:56 | 7.69 | 7.69 |
| 31 Oct 2024, 09:40 | 7.63 | 7.63 |
| 19 Aug 2024, 13:46 | 7.83 | 7.83 |
| 16 Jul 2024, 14:49 | 7.94 | 7.94 |
| 17 Jun 2024, 13:30 | 8.24 | 8.24 |
| 12 Mar 2024, 13:40 | 7.62 | 7.62 |
| 7 Feb 2024, 09:34 | 7.44 | 7.44 |
| 18 Jan 2024, 14:10 | 7.68 | 7.68 |
| 12 Dec 2023, 14:19 | 7.42 | 7.42 |
| 17 Nov 2023, 12:51 | 7.38 | 7.38 |
| 2 Oct 2023, 12:24 | 7.56 | 7.56 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2026, 13:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2026, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jun 2026, 12:30 | 0.04 | 0.04 mg/l |
| 8 May 2026, 09:53 | 0.04 | 0.04 mg/l |
| 7 Apr 2026, 10:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2026, 10:14 | 0.085 | 0.085 mg/l |
| 15 Dec 2025, 10:50 | 0.04 | 0.04 mg/l |
| 10 Nov 2025, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 08:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2025, 10:39 | 0.035 | 0.035 mg/l |
| 15 Aug 2025, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2025, 12:11 | 0.039 | 0.039 mg/l |
| 12 Jun 2025, 10:59 | 0.035 | 0.035 mg/l |
| 21 May 2025, 11:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 10:03 | 0.046 | 0.046 mg/l |
| 11 Mar 2025, 11:34 | 0.1 | 0.1 mg/l |
| 14 Feb 2025, 10:57 | 0.13 | 0.13 mg/l |
| 20 Jan 2025, 12:23 | 0.11 | 0.11 mg/l |
| 13 Dec 2024, 09:37 | 0.065 | 0.065 mg/l |
| 20 Nov 2024, 13:56 | 0.17 | 0.17 mg/l |
| 31 Oct 2024, 09:40 | 0.12 | 0.12 mg/l |
| 19 Aug 2024, 13:46 | 0.055 | 0.055 mg/l |
| 16 Jul 2024, 14:49 | 0.23 | 0.23 mg/l |
| 17 Jun 2024, 13:30 | 0.086 | 0.086 mg/l |
| 12 Mar 2024, 13:40 | 0.31 | 0.31 mg/l |
| 7 Feb 2024, 09:34 | 0.16 | 0.16 mg/l |
| 18 Jan 2024, 14:10 | 0.39 | 0.39 mg/l |
| 12 Dec 2023, 14:19 | 0.18 | 0.18 mg/l |
| 17 Nov 2023, 12:51 | 0.13 | 0.13 mg/l |
| 2 Oct 2023, 12:24 | 0.33 | 0.33 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.29 mg/l
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 2.29 | 2.29 mg/l |
| 21 Aug 2026, 13:04 | 3.2 | 3.2 mg/l |
| 3 Jul 2026, 09:50 | 3.09 | 3.09 mg/l |
| 5 Jun 2026, 12:30 | 4.05 | 4.05 mg/l |
| 8 May 2026, 09:53 | 5.35 | 5.35 mg/l |
| 7 Apr 2026, 10:26 | 6.05 | 6.05 mg/l |
| 8 Jan 2026, 10:14 | 8.16 | 8.16 mg/l |
| 15 Dec 2025, 10:50 | 6.36 | 6.36 mg/l |
| 10 Nov 2025, 10:43 | 1.59 | 1.59 mg/l |
| 8 Oct 2025, 08:41 | 1.99 | 1.99 mg/l |
| 3 Sep 2025, 10:39 | 1.68 | 1.68 mg/l |
| 15 Aug 2025, 10:33 | 1.39 | 1.39 mg/l |
| 1 Jul 2025, 12:11 | 1.69 | 1.69 mg/l |
| 12 Jun 2025, 10:59 | 2.57 | 2.57 mg/l |
| 21 May 2025, 11:46 | 3.36 | 3.36 mg/l |
| 4 Apr 2025, 10:03 | 4.67 | 4.67 mg/l |
| 11 Mar 2025, 11:34 | 4.57 | 4.57 mg/l |
| 14 Feb 2025, 10:57 | 4.98 | 4.98 mg/l |
| 20 Jan 2025, 12:23 | 4.48 | 4.48 mg/l |
| 13 Dec 2024, 09:37 | 3.48 | 3.48 mg/l |
| 20 Nov 2024, 13:56 | 6.04 | 6.04 mg/l |
| 31 Oct 2024, 09:40 | 1.95 | 1.95 mg/l |
| 19 Aug 2024, 13:46 | 3.15 | 3.15 mg/l |
| 16 Jul 2024, 14:49 | 2.72 | 2.72 mg/l |
| 17 Jun 2024, 13:30 | 3.82 | 3.82 mg/l |
| 12 Mar 2024, 13:40 | 3.83 | 3.83 mg/l |
| 7 Feb 2024, 09:34 | 4.75 | 4.75 mg/l |
| 18 Jan 2024, 14:10 | 4.67 | 4.67 mg/l |
| 12 Dec 2023, 14:19 | 4.67 | 4.67 mg/l |
| 17 Nov 2023, 12:51 | 4.25 | 4.25 mg/l |
| 2 Oct 2023, 12:24 | 3.9 | 3.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.36 mg/l
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 0.36 | 0.36 mg/l |
| 21 Aug 2026, 13:04 | 0.2 | 0.2 mg/l |
| 3 Jul 2026, 09:50 | 0.24 | 0.24 mg/l |
| 5 Jun 2026, 12:30 | 0.22 | 0.22 mg/l |
| 8 May 2026, 09:53 | 0.12 | 0.12 mg/l |
| 7 Apr 2026, 10:26 | 0.087 | 0.087 mg/l |
| 8 Jan 2026, 10:14 | 0.11 | 0.11 mg/l |
| 15 Dec 2025, 10:50 | 0.12 | 0.12 mg/l |
| 10 Nov 2025, 10:43 | 0.25 | 0.25 mg/l |
| 8 Oct 2025, 08:41 | 0.28 | 0.28 mg/l |
| 3 Sep 2025, 10:39 | 0.24 | 0.24 mg/l |
| 15 Aug 2025, 10:33 | 0.14 | 0.14 mg/l |
| 1 Jul 2025, 12:11 | 0.2 | 0.2 mg/l |
| 12 Jun 2025, 10:59 | 0.16 | 0.16 mg/l |
| 21 May 2025, 11:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Apr 2025, 10:03 | 0.03 | 0.03 mg/l |
| 11 Mar 2025, 11:34 | 0.042 | 0.042 mg/l |
| 14 Feb 2025, 10:57 | 0.14 | 0.14 mg/l |
| 20 Jan 2025, 12:23 | 0.24 | 0.24 mg/l |
| 13 Dec 2024, 09:37 | 0.15 | 0.15 mg/l |
| 20 Nov 2024, 13:56 | 0.19 | 0.19 mg/l |
| 31 Oct 2024, 09:40 | 0.2 | 0.2 mg/l |
| 19 Aug 2024, 13:46 | 0.29 | 0.29 mg/l |
| 16 Jul 2024, 14:49 | 0.23 | 0.23 mg/l |
| 17 Jun 2024, 13:30 | 0.085 | 0.085 mg/l |
| 12 Mar 2024, 13:40 | 0.11 | 0.11 mg/l |
| 7 Feb 2024, 09:34 | 0.37 | 0.37 mg/l |
| 18 Jan 2024, 14:10 | 0.21 | 0.21 mg/l |
| 12 Dec 2023, 14:19 | 0.14 | 0.14 mg/l |
| 17 Nov 2023, 12:51 | 0.5 | 0.5 mg/l |
| 2 Oct 2023, 12:24 | 0.76 | 0.76 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
663 µS/cm
Sampled 10 Sep 2026, 21 days ago · 31 results banked
Every result (31)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Sep 2026, 09:21 | 663 | 663 µS/cm |
| 21 Aug 2026, 13:04 | 686 | 686 µS/cm |
| 3 Jul 2026, 09:50 | 646 | 646 µS/cm |
| 5 Jun 2026, 12:30 | 622 | 622 µS/cm |
| 8 May 2026, 09:53 | 646 | 646 µS/cm |
| 7 Apr 2026, 10:26 | 618 | 618 µS/cm |
| 8 Jan 2026, 10:14 | 541 | 541 µS/cm |
| 15 Dec 2025, 10:50 | 526 | 526 µS/cm |
| 10 Nov 2025, 10:43 | 674 | 674 µS/cm |
| 8 Oct 2025, 08:41 | 649 | 649 µS/cm |
| 3 Sep 2025, 10:39 | 662 | 662 µS/cm |
| 15 Aug 2025, 10:33 | 624 | 624 µS/cm |
| 1 Jul 2025, 12:11 | 607 | 607 µS/cm |
| 12 Jun 2025, 10:59 | 644 | 644 µS/cm |
| 21 May 2025, 11:46 | 623 | 623 µS/cm |
| 4 Apr 2025, 10:03 | 634 | 634 µS/cm |
| 11 Mar 2025, 11:34 | 589 | 589 µS/cm |
| 14 Feb 2025, 10:57 | 568 | 568 µS/cm |
| 20 Jan 2025, 12:23 | 494 | 494 µS/cm |
| 13 Dec 2024, 09:37 | 445 | 445 µS/cm |
| 20 Nov 2024, 13:56 | 459 | 459 µS/cm |
| 31 Oct 2024, 09:40 | 453 | 453 µS/cm |
| 19 Aug 2024, 13:46 | 625 | 625 µS/cm |
| 16 Jul 2024, 14:49 | 593 | 593 µS/cm |
| 17 Jun 2024, 13:30 | 574 | 574 µS/cm |
| 12 Mar 2024, 13:40 | 429 | 429 µS/cm |
| 7 Feb 2024, 09:34 | 413 | 413 µS/cm |
| 18 Jan 2024, 14:10 | 507 | 507 µS/cm |
| 12 Dec 2023, 14:19 | 412 | 412 µS/cm |
| 17 Nov 2023, 12:51 | 443 | 443 µS/cm |
| 2 Oct 2023, 12:24 | 489 | 489 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 31 | Oct 2023 – Sep 2026 | 82.7% 10 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 31 | Oct 2023 – Sep 2026 | 8.75 mg/l 10 Sep 2026 |
| Temperature of Water 0076 | River water | 31 | Oct 2023 – Sep 2026 | 12.7 °C 10 Sep 2026 |
| pH 0061 | River water | 31 | Oct 2023 – Sep 2026 | 7.97 10 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 31 | Oct 2023 – Sep 2026 | below 0.03 mg/l 10 Sep 2026 |
| Nitrate as N 0117 | River water | 31 | Oct 2023 – Sep 2026 | 2.29 mg/l 10 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 31 | Oct 2023 – Sep 2026 | 0.36 mg/l 10 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 31 | Oct 2023 – Sep 2026 | 663 µS/cm 10 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 31 | Oct 2023 – Sep 2026 | 280 mg/l 10 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 31 | Oct 2023 – Sep 2026 | below 0.00062 mg/l 10 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jun 2024 – May 2026 | 1.4 mg/l 8 May 2026 |
| Nitrite as N 0118 | River water | 31 | Oct 2023 – Sep 2026 | 0.0098 mg/l 10 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 31 | Oct 2023 – Sep 2026 | 2.3 mg/l 10 Sep 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.