Langley Brook downstream of Langley sewage treatment works
EA name: LANGLEY BK DS LANGLEY STW (also listed as “LANGLEY BROOK OFF DORDON ROAD DS LANGLEY STW”)
Environment Agency sampling point MD-61080250 · 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
- 18 May 2026, 11:484 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
- 33 since 9 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 416053, 296882As published, to the nearest 1 m. Open in a map
- River, by its own name
- Langley Brook
- River, by the map
- Langley BrookPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Tamworth On the River Tame · 11 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Environmental monitoring statutory (EU directives) (2 samples)
3 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95%
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 95 | 95% |
| 15 May 2026, 10:10 | 96.2 | 96.2% |
| 13 Apr 2026, 08:35 | 99.3 | 99.3% |
| 8 Apr 2026, 08:07 | 94.1 | 94.1% |
| 25 Mar 2026, 15:38 | 99.1 | 99.1% |
| 12 Mar 2026, 16:01 | 97 | 97% |
| 23 Feb 2026, 09:58 | 98.1 | 98.1% |
| 2 Feb 2026, 10:55 | 97.3 | 97.3% |
| 28 Jan 2026, 16:08 | 96.2 | 96.2% |
| 7 Jan 2026, 08:41 | 96.4 | 96.4% |
| 17 Dec 2025, 10:58 | 95.6 | 95.6% |
| 11 Dec 2025, 11:37 | 99.1 | 99.1% |
| 18 Nov 2025, 09:40 | 96.7 | 96.7% |
| 3 Nov 2025, 11:01 | 92.1 | 92.1% |
| 16 Oct 2025, 10:03 | 85.6 | 85.6% |
| 11 Sep 2025, 09:32 | 91.3 | 91.3% |
| 14 Aug 2025, 10:12 | 88.4 | 88.4% |
| 30 Jul 2025, 11:20 | 93.7 | 93.7% |
| 13 Jun 2025, 07:46 | 86.3 | 86.3% |
| 6 May 2025, 10:32 | 101.5 | 101.5% |
| 2 Apr 2025, 08:38 | 96.3 | 96.3% |
| 18 Mar 2025, 15:07 | 110.4 | 110.4% |
| 12 Feb 2025, 10:06 | 98.3 | 98.3% |
| 29 Jan 2025, 11:44 | 95.7 | 95.7% |
| 12 Dec 2024, 11:43 | 96.1 | 96.1% |
| 21 Nov 2024, 12:22 | 95 | 95% |
| 14 Oct 2024, 08:32 | 99.4 | 99.4% |
| 30 Jul 2024, 12:19 | 95 | 95% |
| 20 Jun 2024, 07:51 | 91.3 | 91.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.4 mg/l
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 10.4 | 10.4 mg/l |
| 15 May 2026, 10:10 | 10.7 | 10.7 mg/l |
| 13 Apr 2026, 08:35 | 11.9 | 11.9 mg/l |
| 8 Apr 2026, 08:07 | 10.7 | 10.7 mg/l |
| 25 Mar 2026, 15:38 | 11.6 | 11.6 mg/l |
| 12 Mar 2026, 16:01 | 11 | 11 mg/l |
| 23 Feb 2026, 09:58 | 11.6 | 11.6 mg/l |
| 2 Feb 2026, 10:55 | 11.9 | 11.9 mg/l |
| 28 Jan 2026, 16:08 | 11.7 | 11.7 mg/l |
| 7 Jan 2026, 08:41 | 12.8 | 12.8 mg/l |
| 17 Dec 2025, 10:58 | 11.6 | 11.6 mg/l |
| 11 Dec 2025, 11:37 | 11.5 | 11.5 mg/l |
| 18 Nov 2025, 09:40 | 11.6 | 11.6 mg/l |
| 3 Nov 2025, 11:01 | 10.1 | 10.1 mg/l |
| 16 Oct 2025, 10:03 | 9.4 | 9.4 mg/l |
| 11 Sep 2025, 09:32 | 9.41 | 9.41 mg/l |
| 14 Aug 2025, 10:12 | 8.28 | 8.28 mg/l |
| 30 Jul 2025, 11:20 | 8.98 | 8.98 mg/l |
| 13 Jun 2025, 07:46 | 8.61 | 8.61 mg/l |
| 6 May 2025, 10:32 | 11.4 | 11.4 mg/l |
| 2 Apr 2025, 08:38 | 11.4 | 11.4 mg/l |
| 18 Mar 2025, 15:07 | 12.8 | 12.8 mg/l |
| 12 Feb 2025, 10:06 | 12.6 | 12.6 mg/l |
| 29 Jan 2025, 11:44 | 12 | 12 mg/l |
| 12 Dec 2024, 11:43 | 11.6 | 11.6 mg/l |
| 21 Nov 2024, 12:22 | 11.9 | 11.9 mg/l |
| 14 Oct 2024, 08:32 | 11.5 | 11.5 mg/l |
| 30 Jul 2024, 12:19 | 8.77 | 8.77 mg/l |
| 20 Jun 2024, 07:51 | 9.49 | 9.49 mg/l |
Water temperature
code 0076 · °C
11.2 °C
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 11.2 | 11.2 °C |
| 15 May 2026, 10:10 | 10.4 | 10.4 °C |
| 13 Apr 2026, 08:35 | 7.5 | 7.5 °C |
| 8 Apr 2026, 08:07 | 9.8 | 9.8 °C |
| 25 Mar 2026, 15:38 | 8.5 | 8.5 °C |
| 12 Mar 2026, 16:01 | 9.6 | 9.6 °C |
| 23 Feb 2026, 09:58 | 8 | 8 °C |
| 2 Feb 2026, 10:55 | 6.7 | 6.7 °C |
| 28 Jan 2026, 16:08 | 6.8 | 6.8 °C |
| 7 Jan 2026, 08:41 | 3.6 | 3.6 °C |
| 17 Dec 2025, 10:58 | 7.1 | 7.1 °C |
| 11 Dec 2025, 11:37 | 8.6 | 8.6 °C |
| 18 Nov 2025, 09:40 | 7.3 | 7.3 °C |
| 3 Nov 2025, 11:01 | 11.3 | 11.3 °C |
| 16 Oct 2025, 10:03 | 11.1 | 11.1 °C |
| 11 Sep 2025, 09:32 | 13.9 | 13.9 °C |
| 14 Aug 2025, 10:12 | 18.4 | 18.4 °C |
| 30 Jul 2025, 11:20 | 17.3 | 17.3 °C |
| 13 Jun 2025, 07:46 | 15.4 | 15.4 °C |
| 6 May 2025, 10:32 | 10.3 | 10.3 °C |
| 2 Apr 2025, 08:38 | 8 | 8 °C |
| 18 Mar 2025, 15:07 | 8.7 | 8.7 °C |
| 12 Feb 2025, 10:06 | 4.9 | 4.9 °C |
| 29 Jan 2025, 11:44 | 5.8 | 5.8 °C |
| 12 Dec 2024, 11:43 | 7.3 | 7.3 °C |
| 21 Nov 2024, 12:22 | 5.7 | 5.7 °C |
| 14 Oct 2024, 08:32 | 8.9 | 8.9 °C |
| 30 Jul 2024, 12:19 | 19.1 | 19.1 °C |
| 20 Jun 2024, 07:51 | 13.5 | 13.5 °C |
pH
code 0061
8.02
Sampled 18 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 8.02 | 8.02 |
| 15 May 2026, 10:10 | 8.13 | 8.13 |
| 13 Apr 2026, 08:35 | 8.25 | 8.25 |
| 8 Apr 2026, 08:07 | 8.1 | 8.1 |
| 25 Mar 2026, 15:38 | 8.16 | 8.16 |
| 12 Mar 2026, 16:01 | 8.16 | 8.16 |
| 23 Feb 2026, 09:58 | 8.11 | 8.11 |
| 2 Feb 2026, 10:55 | 8 | 8 |
| 28 Jan 2026, 16:08 | 8.28 | 8.28 |
| 7 Jan 2026, 08:41 | 8.01 | 8.01 |
| 17 Dec 2025, 10:58 | 7.94 | 7.94 |
| 11 Dec 2025, 11:37 | 7.97 | 7.97 |
| 18 Nov 2025, 09:40 | 7.62 | 7.62 |
| 3 Nov 2025, 11:01 | 7.63 | 7.63 |
| 16 Oct 2025, 10:03 | 7.91 | 7.91 |
| 11 Sep 2025, 09:32 | 7.77 | 7.77 |
| 14 Aug 2025, 10:12 | 8.09 | 8.09 |
| 30 Jul 2025, 11:20 | 8.18 | 8.18 |
| 13 Jun 2025, 07:46 | 8.05 | 8.05 |
| 6 May 2025, 10:32 | 8.21 | 8.21 |
| 2 Apr 2025, 08:38 | 8.36 | 8.36 |
| 18 Mar 2025, 15:07 | 8.43 | 8.43 |
| 12 Feb 2025, 10:06 | 8.17 | 8.17 |
| 29 Jan 2025, 11:44 | 7.89 | 7.89 |
| 12 Dec 2024, 11:43 | 8.07 | 8.07 |
| 21 Nov 2024, 12:22 | 8 | 8 |
| 14 Oct 2024, 08:32 | 8.05 | 8.05 |
| 30 Jul 2024, 12:19 | 8.18 | 8.18 |
| 20 Jun 2024, 07:51 | 8.18 | 8.18 |
| 8 Jan 2024, 12:14 | 8.11 | 8.11 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 May 2026, 10:10 | 0.044 | 0.044 mg/l |
| 13 Apr 2026, 08:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2026, 08:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Mar 2026, 15:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2026, 16:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Feb 2026, 09:58 | 0.069 | 0.069 mg/l |
| 2 Feb 2026, 10:55 | 0.062 | 0.062 mg/l |
| 28 Jan 2026, 16:08 | 0.069 | 0.069 mg/l |
| 7 Jan 2026, 08:41 | 0.073 | 0.073 mg/l |
| 17 Dec 2025, 10:58 | 0.034 | 0.034 mg/l |
| 11 Dec 2025, 11:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2025, 09:40 | 0.053 | 0.053 mg/l |
| 3 Nov 2025, 11:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2025, 10:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Sep 2025, 09:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2025, 10:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2025, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Jun 2025, 07:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 10:32 | 0.047 | 0.047 mg/l |
| 2 Apr 2025, 08:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Mar 2025, 15:07 | 0.039 | 0.039 mg/l |
| 12 Feb 2025, 10:06 | 0.053 | 0.053 mg/l |
| 29 Jan 2025, 11:44 | 0.047 | 0.047 mg/l |
| 12 Dec 2024, 11:43 | 0.069 | 0.069 mg/l |
| 21 Nov 2024, 12:22 | 0.052 | 0.052 mg/l |
| 14 Oct 2024, 08:32 | 0.075 | 0.075 mg/l |
| 30 Jul 2024, 12:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Jun 2024, 07:51 | 0.26 | 0.26 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.07 mg/l
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 4.07 | 4.07 mg/l |
| 15 May 2026, 10:10 | 4.56 | 4.56 mg/l |
| 13 Apr 2026, 08:35 | 4.77 | 4.77 mg/l |
| 8 Apr 2026, 08:07 | 5.18 | 5.18 mg/l |
| 25 Mar 2026, 15:38 | 3.68 | 3.68 mg/l |
| 12 Mar 2026, 16:01 | 6.48 | 6.48 mg/l |
| 23 Feb 2026, 09:58 | 5.78 | 5.78 mg/l |
| 2 Feb 2026, 10:55 | 6.28 | 6.28 mg/l |
| 28 Jan 2026, 16:08 | 5.79 | 5.79 mg/l |
| 7 Jan 2026, 08:41 | 5.97 | 5.97 mg/l |
| 17 Dec 2025, 10:58 | 7.68 | 7.68 mg/l |
| 11 Dec 2025, 11:37 | 8.17 | 8.17 mg/l |
| 18 Nov 2025, 09:40 | 8.66 | 8.66 mg/l |
| 3 Nov 2025, 11:01 | 2.97 | 2.97 mg/l |
| 16 Oct 2025, 10:03 | 2.97 | 2.97 mg/l |
| 11 Sep 2025, 09:32 | 1.69 | 1.69 mg/l |
| 14 Aug 2025, 10:12 | 3.79 | 3.79 mg/l |
| 30 Jul 2025, 11:20 | 2.69 | 2.69 mg/l |
| 13 Jun 2025, 07:46 | 3.27 | 3.27 mg/l |
| 6 May 2025, 10:32 | 5.46 | 5.46 mg/l |
| 2 Apr 2025, 08:38 | 6.77 | 6.77 mg/l |
| 18 Mar 2025, 15:07 | 8.07 | 8.07 mg/l |
| 12 Feb 2025, 10:06 | 7.87 | 7.87 mg/l |
| 29 Jan 2025, 11:44 | 6.78 | 6.78 mg/l |
| 12 Dec 2024, 11:43 | 6.96 | 6.96 mg/l |
| 21 Nov 2024, 12:22 | 7.07 | 7.07 mg/l |
| 14 Oct 2024, 08:32 | 6.33 | 6.33 mg/l |
| 30 Jul 2024, 12:19 | 4.48 | 4.48 mg/l |
| 20 Jun 2024, 07:51 | 5.06 | 5.06 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.08 mg/l
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 0.08 | 0.08 mg/l |
| 15 May 2026, 10:10 | 0.075 | 0.075 mg/l |
| 13 Apr 2026, 08:35 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 Apr 2026, 08:07 | 0.017 | 0.017 mg/l |
| 25 Mar 2026, 15:38 | 0.015 | 0.015 mg/l |
| 12 Mar 2026, 16:01 | 0.072 | 0.072 mg/l |
| 23 Feb 2026, 09:58 | 0.073 | 0.073 mg/l |
| 2 Feb 2026, 10:55 | 0.071 | 0.071 mg/l |
| 28 Jan 2026, 16:08 | 0.083 | 0.083 mg/l |
| 7 Jan 2026, 08:41 | 0.093 | 0.093 mg/l |
| 17 Dec 2025, 10:58 | 0.08 | 0.08 mg/l |
| 11 Dec 2025, 11:37 | 0.08 | 0.08 mg/l |
| 18 Nov 2025, 09:40 | 0.084 | 0.084 mg/l |
| 3 Nov 2025, 11:01 | 0.13 | 0.13 mg/l |
| 16 Oct 2025, 10:03 | 0.18 | 0.18 mg/l |
| 11 Sep 2025, 09:32 | 0.11 | 0.11 mg/l |
| 14 Aug 2025, 10:12 | 0.19 | 0.19 mg/l |
| 30 Jul 2025, 11:20 | 0.2 | 0.2 mg/l |
| 13 Jun 2025, 07:46 | 0.14 | 0.14 mg/l |
| 6 May 2025, 10:32 | 0.082 | 0.082 mg/l |
| 2 Apr 2025, 08:38 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Mar 2025, 15:07 | 0.038 | 0.038 mg/l |
| 12 Feb 2025, 10:06 | 0.077 | 0.077 mg/l |
| 29 Jan 2025, 11:44 | 0.11 | 0.11 mg/l |
| 12 Dec 2024, 11:43 | 0.084 | 0.084 mg/l |
| 21 Nov 2024, 12:22 | 0.093 | 0.093 mg/l |
| 14 Oct 2024, 08:32 | 0.096 | 0.096 mg/l |
| 30 Jul 2024, 12:19 | 0.17 | 0.17 mg/l |
| 20 Jun 2024, 07:51 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
624 µS/cm
Sampled 18 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 May 2026, 11:48 | 624 | 624 µS/cm |
| 15 May 2026, 10:10 | 677 | 677 µS/cm |
| 13 Apr 2026, 08:35 | 661 | 661 µS/cm |
| 8 Apr 2026, 08:07 | 725 | 725 µS/cm |
| 25 Mar 2026, 15:38 | 597 | 597 µS/cm |
| 12 Mar 2026, 16:01 | 728 | 728 µS/cm |
| 23 Feb 2026, 09:58 | 606 | 606 µS/cm |
| 2 Feb 2026, 10:55 | 598 | 598 µS/cm |
| 28 Jan 2026, 16:08 | 538 | 538 µS/cm |
| 7 Jan 2026, 08:41 | 1374 | 1374 µS/cm |
| 17 Dec 2025, 10:58 | 578 | 578 µS/cm |
| 11 Dec 2025, 11:37 | 629 | 629 µS/cm |
| 18 Nov 2025, 09:40 | 631 | 631 µS/cm |
| 3 Nov 2025, 11:01 | 689 | 689 µS/cm |
| 16 Oct 2025, 10:03 | 658 | 658 µS/cm |
| 11 Sep 2025, 09:32 | 556 | 556 µS/cm |
| 14 Aug 2025, 10:12 | 693 | 693 µS/cm |
| 30 Jul 2025, 11:20 | 663 | 663 µS/cm |
| 13 Jun 2025, 07:46 | 727 | 727 µS/cm |
| 6 May 2025, 10:32 | 751 | 751 µS/cm |
| 2 Apr 2025, 08:38 | 770 | 770 µS/cm |
| 18 Mar 2025, 15:07 | 956 | 956 µS/cm |
| 12 Feb 2025, 10:06 | 730 | 730 µS/cm |
| 29 Jan 2025, 11:44 | 618 | 618 µS/cm |
| 12 Dec 2024, 11:43 | 655 | 655 µS/cm |
| 21 Nov 2024, 12:22 | 702 | 702 µS/cm |
| 14 Oct 2024, 08:32 | 693 | 693 µS/cm |
| 30 Jul 2024, 12:19 | 644 | 644 µS/cm |
| 20 Jun 2024, 07:51 | 739 | 739 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Jun 2024 – May 2026 | 95% 18 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Jun 2024 – May 2026 | 10.4 mg/l 18 May 2026 |
| Temperature of Water 0076 | River water | 29 | Jun 2024 – May 2026 | 11.2 °C 18 May 2026 |
| pH 0061 | River water | 30 | Jan 2024 – May 2026 | 8.02 18 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Jun 2024 – May 2026 | below 0.03 mg/l 18 May 2026 |
| Nitrate as N 0117 | River water | 29 | Jun 2024 – May 2026 | 4.07 mg/l 18 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Jun 2024 – May 2026 | 0.08 mg/l 18 May 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Jun 2024 – May 2026 | 624 µS/cm 18 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 29 | Jun 2024 – May 2026 | 170 mg/l 18 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Jun 2024 – May 2026 | below 0.0006 mg/l 18 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 27 | Jul 2024 – May 2026 | 1.4 mg/l 18 May 2026 |
| Calcium, Dissolved 0239 | River water | 1 | Jan 2024 – Jan 2024 | 82 mg/l 8 Jan 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 1 | Jan 2024 – Jan 2024 | 7.8 mg/l 8 Jan 2024 |
| Copper : BLM Bioavailable 4821 | River water | 1 | Jan 2024 – Jan 2024 | 0.28 µg/l 8 Jan 2024 |
| Copper, Dissolved 6450 | River water | 1 | Jan 2024 – Jan 2024 | 6.3 µg/l 8 Jan 2024 |
| Iron, Dissolved 6460 | River water | 1 | Jan 2024 – Jan 2024 | 43 µg/l 8 Jan 2024 |
| Magnesium, Dissolved 0235 | River water | 1 | Jan 2024 – Jan 2024 | 22 mg/l 8 Jan 2024 |
| Nitrite as N 0118 | River water | 29 | Jun 2024 – May 2026 | 0.028 mg/l 18 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Jun 2024 – May 2026 | 4.1 mg/l 18 May 2026 |
| No flow /No sample 7668 | River water | 3 | Oct 2023 – Sep 2024 | No flow/discharge at sampling point 16 Sep 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.