West Beck at Snakeholm Pastures

EA name: WEST BECK AT SNAKEHOLM PASTURES (also listed as “RSN2224 WEST BECK AT SNAKEHOLM PASTURES”)
Environment Agency sampling point NE-RSN2224 · 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
4 Dec 2025, 11:1210 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
22 since 26 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 506733, 455406As published, to the nearest 1 m. Open in a map
River, by its own name
West Beck
River, by the map
West BeckPlaced on the river its name gives, 0 m from the line.
Next gauge downstream
Scurf Dyke On the River Hull · 7.8 km along the river
Nearest gauge upstream
Wansford Snakeholm Lock On the West Beck · 0.2 km along the river
Why it was sampled
Monitoring (national agency policy) (22 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

96.6%

Sampled 4 Dec 2025, 10 months ago · 22 results banked

8090100110120%20242025202626 Jan 2024, 10:34: 94.5%9 Feb 2024, 11:49: 90.3%1 Mar 2024, 11:30: 100.5%29 Apr 2024, 11:55: 110.2%16 May 2024, 12:06: 111.7%8 Aug 2024, 13:14: 116.9%16 Sep 2024, 12:21: 102.7%3 Oct 2024, 10:16: 86%29 Nov 2024, 10:11: 97.2%16 Dec 2024, 12:14: 93.4%14 Jan 2025, 11:47: 100%7 Feb 2025, 11:36: 98.9%13 Mar 2025, 11:54: 103.9%2 Apr 2025, 10:34: 102.9%9 May 2025, 10:58: 108.5%3 Jun 2025, 12:07: 104.9%2 Jul 2025, 11:30: 88.9%7 Aug 2025, 09:54: 93.4%29 Sep 2025, 13:05: 103.9%23 Oct 2025, 10:52: 86.6%10 Nov 2025, 10:58: 94.3%4 Dec 2025, 11:12: 96.6%
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:1296.6 96.6%
10 Nov 2025, 10:5894.3 94.3%
23 Oct 2025, 10:5286.6 86.6%
29 Sep 2025, 13:05103.9 103.9%
7 Aug 2025, 09:5493.4 93.4%
2 Jul 2025, 11:3088.9 88.9%
3 Jun 2025, 12:07104.9 104.9%
9 May 2025, 10:58108.5 108.5%
2 Apr 2025, 10:34102.9 102.9%
13 Mar 2025, 11:54103.9 103.9%
7 Feb 2025, 11:3698.9 98.9%
14 Jan 2025, 11:47100 100%
16 Dec 2024, 12:1493.4 93.4%
29 Nov 2024, 10:1197.2 97.2%
3 Oct 2024, 10:1686 86%
16 Sep 2024, 12:21102.7 102.7%
8 Aug 2024, 13:14116.9 116.9%
16 May 2024, 12:06111.7 111.7%
29 Apr 2024, 11:55110.2 110.2%
1 Mar 2024, 11:30100.5 100.5%
9 Feb 2024, 11:4990.3 90.3%
26 Jan 2024, 10:3494.5 94.5%

Dissolved oxygen

as O2 · code 9924 · mg/l

11.4 mg/l

Sampled 4 Dec 2025, 10 months ago · 22 results banked

8910111213mg/l20242025202626 Jan 2024, 10:34: 11.1 mg/l9 Feb 2024, 11:49: 10.8 mg/l1 Mar 2024, 11:30: 11.9 mg/l29 Apr 2024, 11:55: 12.5 mg/l16 May 2024, 12:06: 12.1 mg/l8 Aug 2024, 13:14: 12 mg/l16 Sep 2024, 12:21: 11 mg/l3 Oct 2024, 10:16: 9.29 mg/l29 Nov 2024, 10:11: 11.8 mg/l16 Dec 2024, 12:14: 10.6 mg/l14 Jan 2025, 11:47: 11.6 mg/l7 Feb 2025, 11:36: 11.8 mg/l13 Mar 2025, 11:54: 12.1 mg/l2 Apr 2025, 10:34: 11.7 mg/l9 May 2025, 10:58: 11.9 mg/l3 Jun 2025, 12:07: 10.9 mg/l2 Jul 2025, 11:30: 8.77 mg/l7 Aug 2025, 09:54: 9.35 mg/l29 Sep 2025, 13:05: 11.1 mg/l23 Oct 2025, 10:52: 9.68 mg/l10 Nov 2025, 10:58: 10.3 mg/l4 Dec 2025, 11:12: 11.4 mg/l
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:1211.4 11.4 mg/l
10 Nov 2025, 10:5810.3 10.3 mg/l
23 Oct 2025, 10:529.68 9.68 mg/l
29 Sep 2025, 13:0511.1 11.1 mg/l
7 Aug 2025, 09:549.35 9.35 mg/l
2 Jul 2025, 11:308.77 8.77 mg/l
3 Jun 2025, 12:0710.9 10.9 mg/l
9 May 2025, 10:5811.9 11.9 mg/l
2 Apr 2025, 10:3411.7 11.7 mg/l
13 Mar 2025, 11:5412.1 12.1 mg/l
7 Feb 2025, 11:3611.8 11.8 mg/l
14 Jan 2025, 11:4711.6 11.6 mg/l
16 Dec 2024, 12:1410.6 10.6 mg/l
29 Nov 2024, 10:1111.8 11.8 mg/l
3 Oct 2024, 10:169.29 9.29 mg/l
16 Sep 2024, 12:2111 11 mg/l
8 Aug 2024, 13:1412 12 mg/l
16 May 2024, 12:0612.1 12.1 mg/l
29 Apr 2024, 11:5512.5 12.5 mg/l
1 Mar 2024, 11:3011.9 11.9 mg/l
9 Feb 2024, 11:4910.8 10.8 mg/l
26 Jan 2024, 10:3411.1 11.1 mg/l

Water temperature

code 0076 · °C

8.2 °C

Sampled 4 Dec 2025, 10 months ago · 22 results banked

57.51012.51517.5°C20242025202626 Jan 2024, 10:34: 8.3 °C9 Feb 2024, 11:49: 7.5 °C1 Mar 2024, 11:30: 7.9 °C29 Apr 2024, 11:55: 9.7 °C16 May 2024, 12:06: 11.5 °C8 Aug 2024, 13:14: 14 °C16 Sep 2024, 12:21: 12.1 °C3 Oct 2024, 10:16: 11.8 °C29 Nov 2024, 10:11: 6.8 °C16 Dec 2024, 12:14: 9.5 °C14 Jan 2025, 11:47: 8.7 °C7 Feb 2025, 11:36: 7.6 °C13 Mar 2025, 11:54: 8.6 °C2 Apr 2025, 10:34: 9.6 °C9 May 2025, 10:58: 11.1 °C3 Jun 2025, 12:07: 13.7 °C2 Jul 2025, 11:30: 15.9 °C7 Aug 2025, 09:54: 15.2 °C29 Sep 2025, 13:05: 12.4 °C23 Oct 2025, 10:52: 10.3 °C10 Nov 2025, 10:58: 11.3 °C4 Dec 2025, 11:12: 8.2 °C
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:128.2 8.2 °C
10 Nov 2025, 10:5811.3 11.3 °C
23 Oct 2025, 10:5210.3 10.3 °C
29 Sep 2025, 13:0512.4 12.4 °C
7 Aug 2025, 09:5415.2 15.2 °C
2 Jul 2025, 11:3015.9 15.9 °C
3 Jun 2025, 12:0713.7 13.7 °C
9 May 2025, 10:5811.1 11.1 °C
2 Apr 2025, 10:349.6 9.6 °C
13 Mar 2025, 11:548.6 8.6 °C
7 Feb 2025, 11:367.6 7.6 °C
14 Jan 2025, 11:478.7 8.7 °C
16 Dec 2024, 12:149.5 9.5 °C
29 Nov 2024, 10:116.8 6.8 °C
3 Oct 2024, 10:1611.8 11.8 °C
16 Sep 2024, 12:2112.1 12.1 °C
8 Aug 2024, 13:1414 14 °C
16 May 2024, 12:0611.5 11.5 °C
29 Apr 2024, 11:559.7 9.7 °C
1 Mar 2024, 11:307.9 7.9 °C
9 Feb 2024, 11:497.5 7.5 °C
26 Jan 2024, 10:348.3 8.3 °C

pH

code 0061

8.06

Sampled 4 Dec 2025, 10 months ago · 22 results banked

7.47.67.888.28.420242025202626 Jan 2024, 10:34: 7.739 Feb 2024, 11:49: 7.491 Mar 2024, 11:30: 8.0229 Apr 2024, 11:55: 8.0816 May 2024, 12:06: 8.098 Aug 2024, 13:14: 8.1716 Sep 2024, 12:21: 8.143 Oct 2024, 10:16: 7.8929 Nov 2024, 10:11: 8.0216 Dec 2024, 12:14: 7.8814 Jan 2025, 11:47: 7.927 Feb 2025, 11:36: 8.0113 Mar 2025, 11:54: 8.142 Apr 2025, 10:34: 8.079 May 2025, 10:58: 8.183 Jun 2025, 12:07: 8.232 Jul 2025, 11:30: 8.217 Aug 2025, 09:54: 7.9729 Sep 2025, 13:05: 8.0623 Oct 2025, 10:52: 7.9710 Nov 2025, 10:58: 8.064 Dec 2025, 11:12: 8.06
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:128.06 8.06
10 Nov 2025, 10:588.06 8.06
23 Oct 2025, 10:527.97 7.97
29 Sep 2025, 13:058.06 8.06
7 Aug 2025, 09:547.97 7.97
2 Jul 2025, 11:308.21 8.21
3 Jun 2025, 12:078.23 8.23
9 May 2025, 10:588.18 8.18
2 Apr 2025, 10:348.07 8.07
13 Mar 2025, 11:548.14 8.14
7 Feb 2025, 11:368.01 8.01
14 Jan 2025, 11:477.92 7.92
16 Dec 2024, 12:147.88 7.88
29 Nov 2024, 10:118.02 8.02
3 Oct 2024, 10:167.89 7.89
16 Sep 2024, 12:218.14 8.14
8 Aug 2024, 13:148.17 8.17
16 May 2024, 12:068.09 8.09
29 Apr 2024, 11:558.08 8.08
1 Mar 2024, 11:308.02 8.02
9 Feb 2024, 11:497.49 7.49
26 Jan 2024, 10:347.73 7.73

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.018 mg/l

Sampled 4 Dec 2025, 10 months ago · 22 results banked

00.10.20.30.4mg/l20242025202626 Jan 2024, 10:34: 0.028 mg/l9 Feb 2024, 11:49: 0.34 mg/l1 Mar 2024, 11:30: 0.015 mg/l29 Apr 2024, 11:55: 0.019 mg/l16 May 2024, 12:06: 0.025 mg/l8 Aug 2024, 13:14: 0.025 mg/l16 Sep 2024, 12:21: 0.02 mg/l3 Oct 2024, 10:16: 0.026 mg/l29 Nov 2024, 10:11: 0.044 mg/l16 Dec 2024, 12:14: 0.025 mg/l14 Jan 2025, 11:47: 0.016 mg/l7 Feb 2025, 11:36: 0.018 mg/l13 Mar 2025, 11:54: 0.025 mg/l2 Apr 2025, 10:34: 0.023 mg/l9 May 2025, 10:58: 0.024 mg/l3 Jun 2025, 12:07: 0.074 mg/l2 Jul 2025, 11:30: 0.063 mg/l7 Aug 2025, 09:54: 0.045 mg/l29 Sep 2025, 13:05: 0.053 mg/l23 Oct 2025, 10:52: 0.056 mg/l10 Nov 2025, 10:58: 0.051 mg/l4 Dec 2025, 11:12: 0.018 mg/l
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:120.018 0.018 mg/l
10 Nov 2025, 10:580.051 0.051 mg/l
23 Oct 2025, 10:520.056 0.056 mg/l
29 Sep 2025, 13:050.053 0.053 mg/l
7 Aug 2025, 09:540.045 0.045 mg/l
2 Jul 2025, 11:300.063 0.063 mg/l
3 Jun 2025, 12:070.074 0.074 mg/l
9 May 2025, 10:580.024 0.024 mg/l
2 Apr 2025, 10:340.023 0.023 mg/l
13 Mar 2025, 11:540.025 0.025 mg/l
7 Feb 2025, 11:360.018 0.018 mg/l
14 Jan 2025, 11:470.016 0.016 mg/l
16 Dec 2024, 12:140.025 0.025 mg/l
29 Nov 2024, 10:110.044 0.044 mg/l
3 Oct 2024, 10:160.026 0.026 mg/l
16 Sep 2024, 12:210.02 0.02 mg/l
8 Aug 2024, 13:140.025 0.025 mg/l
16 May 2024, 12:060.025 0.025 mg/l
29 Apr 2024, 11:550.019 0.019 mg/l
1 Mar 2024, 11:300.015 0.015 mg/l
9 Feb 2024, 11:490.34 0.34 mg/l
26 Jan 2024, 10:340.028 0.028 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

12 mg/l

Sampled 4 Dec 2025, 10 months ago · 22 results banked

68101214mg/l20242025202626 Jan 2024, 10:34: 13 mg/l9 Feb 2024, 11:49: 6.86 mg/l1 Mar 2024, 11:30: 13 mg/l29 Apr 2024, 11:55: 12 mg/l16 May 2024, 12:06: 12 mg/l8 Aug 2024, 13:14: 11 mg/l16 Sep 2024, 12:21: 10.9 mg/l3 Oct 2024, 10:16: 12.9 mg/l29 Nov 2024, 10:11: 12 mg/l16 Dec 2024, 12:14: 13 mg/l14 Jan 2025, 11:47: 13 mg/l7 Feb 2025, 11:36: 13 mg/l13 Mar 2025, 11:54: 13 mg/l2 Apr 2025, 10:34: 13 mg/l9 May 2025, 10:58: 12 mg/l3 Jun 2025, 12:07: 11.9 mg/l2 Jul 2025, 11:30: 10.9 mg/l7 Aug 2025, 09:54: 10.9 mg/l29 Sep 2025, 13:05: 10.9 mg/l23 Oct 2025, 10:52: 9.32 mg/l10 Nov 2025, 10:58: 9.71 mg/l4 Dec 2025, 11:12: 12 mg/l
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:1212 12 mg/l
10 Nov 2025, 10:589.71 9.71 mg/l
23 Oct 2025, 10:529.32 9.32 mg/l
29 Sep 2025, 13:0510.9 10.9 mg/l
7 Aug 2025, 09:5410.9 10.9 mg/l
2 Jul 2025, 11:3010.9 10.9 mg/l
3 Jun 2025, 12:0711.9 11.9 mg/l
9 May 2025, 10:5812 12 mg/l
2 Apr 2025, 10:3413 13 mg/l
13 Mar 2025, 11:5413 13 mg/l
7 Feb 2025, 11:3613 13 mg/l
14 Jan 2025, 11:4713 13 mg/l
16 Dec 2024, 12:1413 13 mg/l
29 Nov 2024, 10:1112 12 mg/l
3 Oct 2024, 10:1612.9 12.9 mg/l
16 Sep 2024, 12:2110.9 10.9 mg/l
8 Aug 2024, 13:1411 11 mg/l
16 May 2024, 12:0612 12 mg/l
29 Apr 2024, 11:5512 12 mg/l
1 Mar 2024, 11:3013 13 mg/l
9 Feb 2024, 11:496.86 6.86 mg/l
26 Jan 2024, 10:3413 13 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.021 mg/l

Sampled 4 Dec 2025, 10 months ago · 22 results banked

00.050.10.150.2mg/l20242025202626 Jan 2024, 10:34: 0.021 mg/l9 Feb 2024, 11:49: 0.17 mg/l1 Mar 2024, 11:30: 0.015 mg/l29 Apr 2024, 11:55: 0.012 mg/l16 May 2024, 12:06: 0.0071 mg/l8 Aug 2024, 13:14: 0.0092 mg/l16 Sep 2024, 12:21: 0.016 mg/l3 Oct 2024, 10:16: 0.034 mg/l29 Nov 2024, 10:11: 0.049 mg/l16 Dec 2024, 12:14: 0.021 mg/l14 Jan 2025, 11:47: 0.017 mg/l7 Feb 2025, 11:36: 0.015 mg/l13 Mar 2025, 11:54: 0.015 mg/l2 Apr 2025, 10:34: 0.0061 mg/l9 May 2025, 10:58: 0.0052 mg/l3 Jun 2025, 12:07: 0.0083 mg/l2 Jul 2025, 11:30: 0.011 mg/l7 Aug 2025, 09:54: 0.0056 mg/l29 Sep 2025, 13:05: 0.013 mg/l23 Oct 2025, 10:52: 0.027 mg/l10 Nov 2025, 10:58: 0.031 mg/l4 Dec 2025, 11:12: 0.021 mg/l
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:120.021 0.021 mg/l
10 Nov 2025, 10:580.031 0.031 mg/l
23 Oct 2025, 10:520.027 0.027 mg/l
29 Sep 2025, 13:050.013 0.013 mg/l
7 Aug 2025, 09:540.0056 0.0056 mg/l
2 Jul 2025, 11:300.011 0.011 mg/l
3 Jun 2025, 12:070.0083 0.0083 mg/l
9 May 2025, 10:580.0052 0.0052 mg/l
2 Apr 2025, 10:340.0061 0.0061 mg/l
13 Mar 2025, 11:540.015 0.015 mg/l
7 Feb 2025, 11:360.015 0.015 mg/l
14 Jan 2025, 11:470.017 0.017 mg/l
16 Dec 2024, 12:140.021 0.021 mg/l
29 Nov 2024, 10:110.049 0.049 mg/l
3 Oct 2024, 10:160.034 0.034 mg/l
16 Sep 2024, 12:210.016 0.016 mg/l
8 Aug 2024, 13:140.0092 0.0092 mg/l
16 May 2024, 12:060.0071 0.0071 mg/l
29 Apr 2024, 11:550.012 0.012 mg/l
1 Mar 2024, 11:300.015 0.015 mg/l
9 Feb 2024, 11:490.17 0.17 mg/l
26 Jan 2024, 10:340.021 0.021 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

601 µS/cm

Sampled 4 Dec 2025, 10 months ago · 22 results banked

450500550600650µS/cm20242025202626 Jan 2024, 10:34: 607 µS/cm9 Feb 2024, 11:49: 454 µS/cm1 Mar 2024, 11:30: 598 µS/cm29 Apr 2024, 11:55: 590 µS/cm16 May 2024, 12:06: 595 µS/cm8 Aug 2024, 13:14: 584 µS/cm16 Sep 2024, 12:21: 589 µS/cm3 Oct 2024, 10:16: 605 µS/cm29 Nov 2024, 10:11: 607 µS/cm16 Dec 2024, 12:14: 599 µS/cm14 Jan 2025, 11:47: 613 µS/cm7 Feb 2025, 11:36: 600 µS/cm13 Mar 2025, 11:54: 595 µS/cm2 Apr 2025, 10:34: 598 µS/cm9 May 2025, 10:58: 587 µS/cm3 Jun 2025, 12:07: 580 µS/cm2 Jul 2025, 11:30: 581 µS/cm7 Aug 2025, 09:54: 556 µS/cm29 Sep 2025, 13:05: 581 µS/cm23 Oct 2025, 10:52: 566 µS/cm10 Nov 2025, 10:58: 572 µS/cm4 Dec 2025, 11:12: 601 µS/cm
Every result (22)
SampledResult as publishedReads as
4 Dec 2025, 11:12601 601 µS/cm
10 Nov 2025, 10:58572 572 µS/cm
23 Oct 2025, 10:52566 566 µS/cm
29 Sep 2025, 13:05581 581 µS/cm
7 Aug 2025, 09:54556 556 µS/cm
2 Jul 2025, 11:30581 581 µS/cm
3 Jun 2025, 12:07580 580 µS/cm
9 May 2025, 10:58587 587 µS/cm
2 Apr 2025, 10:34598 598 µS/cm
13 Mar 2025, 11:54595 595 µS/cm
7 Feb 2025, 11:36600 600 µS/cm
14 Jan 2025, 11:47613 613 µS/cm
16 Dec 2024, 12:14599 599 µS/cm
29 Nov 2024, 10:11607 607 µS/cm
3 Oct 2024, 10:16605 605 µS/cm
16 Sep 2024, 12:21589 589 µS/cm
8 Aug 2024, 13:14584 584 µS/cm
16 May 2024, 12:06595 595 µS/cm
29 Apr 2024, 11:55590 590 µS/cm
1 Mar 2024, 11:30598 598 µS/cm
9 Feb 2024, 11:49454 454 µS/cm
26 Jan 2024, 10:34607 607 µS/cm

Everything measured here

18 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 18 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 22 Jan 2024 – Dec 2025 96.6% 4 Dec 2025
Oxygen, Dissolved as O2 9924 River water 22 Jan 2024 – Dec 2025 11.4 mg/l 4 Dec 2025
Temperature of Water 0076 River water 22 Jan 2024 – Dec 2025 8.2 °C 4 Dec 2025
pH 0061 River water 22 Jan 2024 – Dec 2025 8.06 4 Dec 2025
Ammoniacal Nitrogen as N 0111 River water 22 Jan 2024 – Dec 2025 0.018 mg/l 4 Dec 2025
Nitrate as N 0117 River water 22 Jan 2024 – Dec 2025 12 mg/l 4 Dec 2025
Orthophosphate, reactive as P 0180 River water 22 Jan 2024 – Dec 2025 0.021 mg/l 4 Dec 2025
Conductivity at 25 C 0077 River water 22 Jan 2024 – Dec 2025 601 µS/cm 4 Dec 2025
Alkalinity to pH 4.5 as CaCO3 0162 River water 22 Jan 2024 – Dec 2025 200 mg/l 4 Dec 2025
Ammonia un-ionised as N 0119 River water 22 Jan 2024 – Dec 2025 0.00029 mg/l 4 Dec 2025
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 22 Jan 2024 – Dec 2025 1.3 mg/l 4 Dec 2025
Chloride 0172 River water 22 Jan 2024 – Dec 2025 26 mg/l 4 Dec 2025
Flow Type 2896 River water 16 Aug 2024 – Dec 2025 High Flow 4 Dec 2025
Nitrite as N 0118 River water 22 Jan 2024 – Dec 2025 0.013 mg/l 4 Dec 2025
Nitrogen, Total Oxidised as N 0116 River water 22 Jan 2024 – Dec 2025 12 mg/l 4 Dec 2025
Phosphorus, Total as P 0348 River water 22 Jan 2024 – Dec 2025 0.048 mg/l 4 Dec 2025
Silica, reactive as SiO2 0182 River water 22 Jan 2024 – Dec 2025 8 mg/l 4 Dec 2025
Solids, Suspended at 105 C 0135 River water 1 Dec 2025 – Dec 2025 16 mg/l 4 Dec 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.