Alwin at Clennell

EA name: ALWIN AT CLENNELL
Environment Agency sampling point NE-42300073 · 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
14 Sep 2026, 08:5117 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
38 since 3 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Planned investigation (local monitoring)
Where
National Grid 392805, 607060As published, to the nearest 1 m. Open in a map
River, by its own name
Alwin
River, by the map
River AlwinPlaced on the river its name gives, 0 m from the line.
Next gauge downstream
Alwinton Bridge On the River Coquet · 2.0 km along the river
Why it was sampled
Planned investigation (local monitoring) (38 samples)

Main measurements, river water

Water temperature

code 0076 · °C

13.2 °C

Sampled 14 Sep 2026, 17 days ago · 38 results banked

05101520°C2024202520263 Oct 2023, 08:56: 9.7 °C16 Oct 2023, 09:36: 6.4 °C2 Nov 2023, 09:46: 8.1 °C22 Nov 2023, 10:11: 8 °C4 Dec 2023, 09:47: 3.7 °C18 Dec 2023, 09:31: 8.9 °C3 Jan 2024, 09:12: 5.9 °C15 Jan 2024, 09:44: 0.5 °C7 Feb 2024, 09:24: 2.9 °C19 Feb 2024, 09:23: 6.4 °C4 Mar 2024, 09:06: 2.5 °C20 Mar 2024, 09:12: 7 °C7 Apr 2025, 09:39: 5.6 °C16 Apr 2025, 10:41: 7.3 °C6 Oct 2025, 08:57: 10.8 °C20 Oct 2025, 09:32: 9.4 °C5 Nov 2025, 09:32: 9.9 °C17 Nov 2025, 11:24: 5.7 °C5 Dec 2025, 11:24: 6.4 °C15 Dec 2025, 11:14: 7.8 °C6 Jan 2026, 10:37: 0.2 °C20 Jan 2026, 09:19: 5.9 °C6 Feb 2026, 08:52: 4.5 °C16 Feb 2026, 11:10: 4.2 °C5 Mar 2026, 08:48: 4.9 °C16 Mar 2026, 12:02: 5.7 °C9 Apr 2026, 08:56: 9.2 °C13 Apr 2026, 11:22: 8.2 °C6 May 2026, 08:30: 6.8 °C20 May 2026, 10:13: 12.5 °C8 Jun 2026, 12:00: 15.5 °C17 Jun 2026, 08:53: 13 °C8 Jul 2026, 07:24: 15.4 °C13 Jul 2026, 11:01: 19.1 °C13 Aug 2026, 08:12: 16.3 °C20 Aug 2026, 11:12: 14.7 °C8 Sep 2026, 10:44: 12.9 °C14 Sep 2026, 08:51: 13.2 °C
Every result (38)
SampledResult as publishedReads as
14 Sep 2026, 08:5113.2 13.2 °C
8 Sep 2026, 10:4412.9 12.9 °C
20 Aug 2026, 11:1214.7 14.7 °C
13 Aug 2026, 08:1216.3 16.3 °C
13 Jul 2026, 11:0119.1 19.1 °C
8 Jul 2026, 07:2415.4 15.4 °C
17 Jun 2026, 08:5313 13 °C
8 Jun 2026, 12:0015.5 15.5 °C
20 May 2026, 10:1312.5 12.5 °C
6 May 2026, 08:306.8 6.8 °C
13 Apr 2026, 11:228.2 8.2 °C
9 Apr 2026, 08:569.2 9.2 °C
16 Mar 2026, 12:025.7 5.7 °C
5 Mar 2026, 08:484.9 4.9 °C
16 Feb 2026, 11:104.2 4.2 °C
6 Feb 2026, 08:524.5 4.5 °C
20 Jan 2026, 09:195.9 5.9 °C
6 Jan 2026, 10:370.2 0.2 °C
15 Dec 2025, 11:147.8 7.8 °C
5 Dec 2025, 11:246.4 6.4 °C
17 Nov 2025, 11:245.7 5.7 °C
5 Nov 2025, 09:329.9 9.9 °C
20 Oct 2025, 09:329.4 9.4 °C
6 Oct 2025, 08:5710.8 10.8 °C
16 Apr 2025, 10:417.3 7.3 °C
7 Apr 2025, 09:395.6 5.6 °C
20 Mar 2024, 09:127 7 °C
4 Mar 2024, 09:062.5 2.5 °C
19 Feb 2024, 09:236.4 6.4 °C
7 Feb 2024, 09:242.9 2.9 °C
15 Jan 2024, 09:440.5 0.5 °C
3 Jan 2024, 09:125.9 5.9 °C
18 Dec 2023, 09:318.9 8.9 °C
4 Dec 2023, 09:473.7 3.7 °C
22 Nov 2023, 10:118 8 °C
2 Nov 2023, 09:468.1 8.1 °C
16 Oct 2023, 09:366.4 6.4 °C
3 Oct 2023, 08:569.7 9.7 °C

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 14 Sep 2026, 17 days ago · 38 results banked

0.030.040.050.06mg/l2024202520263 Oct 2023, 08:56: below 0.03 mg/l (not detected above this)16 Oct 2023, 09:36: below 0.03 mg/l (not detected above this)2 Nov 2023, 09:46: below 0.03 mg/l (not detected above this)22 Nov 2023, 10:11: below 0.03 mg/l (not detected above this)4 Dec 2023, 09:47: below 0.03 mg/l (not detected above this)18 Dec 2023, 09:31: below 0.03 mg/l (not detected above this)3 Jan 2024, 09:12: below 0.03 mg/l (not detected above this)15 Jan 2024, 09:44: below 0.03 mg/l (not detected above this)7 Feb 2024, 09:24: below 0.03 mg/l (not detected above this)19 Feb 2024, 09:23: below 0.03 mg/l (not detected above this)4 Mar 2024, 09:06: below 0.03 mg/l (not detected above this)20 Mar 2024, 09:12: below 0.03 mg/l (not detected above this)7 Apr 2025, 09:39: below 0.03 mg/l (not detected above this)16 Apr 2025, 10:41: below 0.03 mg/l (not detected above this)6 Oct 2025, 08:57: below 0.03 mg/l (not detected above this)20 Oct 2025, 09:32: below 0.03 mg/l (not detected above this)5 Nov 2025, 09:32: below 0.03 mg/l (not detected above this)17 Nov 2025, 11:24: below 0.03 mg/l (not detected above this)5 Dec 2025, 11:24: below 0.03 mg/l (not detected above this)15 Dec 2025, 11:14: below 0.03 mg/l (not detected above this)6 Jan 2026, 10:37: below 0.03 mg/l (not detected above this)20 Jan 2026, 09:19: below 0.03 mg/l (not detected above this)6 Feb 2026, 08:52: below 0.03 mg/l (not detected above this)16 Feb 2026, 11:10: below 0.03 mg/l (not detected above this)5 Mar 2026, 08:48: below 0.03 mg/l (not detected above this)16 Mar 2026, 12:02: below 0.03 mg/l (not detected above this)9 Apr 2026, 08:56: below 0.03 mg/l (not detected above this)13 Apr 2026, 11:22: below 0.03 mg/l (not detected above this)6 May 2026, 08:30: below 0.03 mg/l (not detected above this)20 May 2026, 10:13: 0.051 mg/l8 Jun 2026, 12:00: 0.047 mg/l17 Jun 2026, 08:53: 0.034 mg/l8 Jul 2026, 07:24: below 0.03 mg/l (not detected above this)13 Jul 2026, 11:01: below 0.03 mg/l (not detected above this)13 Aug 2026, 08:12: below 0.03 mg/l (not detected above this)20 Aug 2026, 11:12: below 0.03 mg/l (not detected above this)8 Sep 2026, 10:44: below 0.03 mg/l (not detected above this)14 Sep 2026, 08:51: below 0.03 mg/l (not detected above this)
Every result (38)
SampledResult as publishedReads as
14 Sep 2026, 08:51<0.03 below 0.03 mg/l (not detected above this)
8 Sep 2026, 10:44<0.03 below 0.03 mg/l (not detected above this)
20 Aug 2026, 11:12<0.03 below 0.03 mg/l (not detected above this)
13 Aug 2026, 08:12<0.03 below 0.03 mg/l (not detected above this)
13 Jul 2026, 11:01<0.03 below 0.03 mg/l (not detected above this)
8 Jul 2026, 07:24<0.03 below 0.03 mg/l (not detected above this)
17 Jun 2026, 08:530.034 0.034 mg/l
8 Jun 2026, 12:000.047 0.047 mg/l
20 May 2026, 10:130.051 0.051 mg/l
6 May 2026, 08:30<0.03 below 0.03 mg/l (not detected above this)
13 Apr 2026, 11:22<0.03 below 0.03 mg/l (not detected above this)
9 Apr 2026, 08:56<0.03 below 0.03 mg/l (not detected above this)
16 Mar 2026, 12:02<0.03 below 0.03 mg/l (not detected above this)
5 Mar 2026, 08:48<0.03 below 0.03 mg/l (not detected above this)
16 Feb 2026, 11:10<0.03 below 0.03 mg/l (not detected above this)
6 Feb 2026, 08:52<0.03 below 0.03 mg/l (not detected above this)
20 Jan 2026, 09:19<0.03 below 0.03 mg/l (not detected above this)
6 Jan 2026, 10:37<0.03 below 0.03 mg/l (not detected above this)
15 Dec 2025, 11:14<0.03 below 0.03 mg/l (not detected above this)
5 Dec 2025, 11:24<0.03 below 0.03 mg/l (not detected above this)
17 Nov 2025, 11:24<0.03 below 0.03 mg/l (not detected above this)
5 Nov 2025, 09:32<0.03 below 0.03 mg/l (not detected above this)
20 Oct 2025, 09:32<0.03 below 0.03 mg/l (not detected above this)
6 Oct 2025, 08:57<0.03 below 0.03 mg/l (not detected above this)
16 Apr 2025, 10:41<0.03 below 0.03 mg/l (not detected above this)
7 Apr 2025, 09:39<0.03 below 0.03 mg/l (not detected above this)
20 Mar 2024, 09:12<0.03 below 0.03 mg/l (not detected above this)
4 Mar 2024, 09:06<0.03 below 0.03 mg/l (not detected above this)
19 Feb 2024, 09:23<0.03 below 0.03 mg/l (not detected above this)
7 Feb 2024, 09:24<0.03 below 0.03 mg/l (not detected above this)
15 Jan 2024, 09:44<0.03 below 0.03 mg/l (not detected above this)
3 Jan 2024, 09:12<0.03 below 0.03 mg/l (not detected above this)
18 Dec 2023, 09:31<0.03 below 0.03 mg/l (not detected above this)
4 Dec 2023, 09:47<0.03 below 0.03 mg/l (not detected above this)
22 Nov 2023, 10:11<0.03 below 0.03 mg/l (not detected above this)
2 Nov 2023, 09:46<0.03 below 0.03 mg/l (not detected above this)
16 Oct 2023, 09:36<0.03 below 0.03 mg/l (not detected above this)
3 Oct 2023, 08:56<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

0.226 mg/l

Sampled 14 Sep 2026, 17 days ago · 38 results banked

00.511.5mg/l2024202520263 Oct 2023, 08:56: 0.616 mg/l16 Oct 2023, 09:36: 0.846 mg/l2 Nov 2023, 09:46: 0.896 mg/l22 Nov 2023, 10:11: 0.866 mg/l4 Dec 2023, 09:47: 0.936 mg/l18 Dec 2023, 09:31: 0.776 mg/l3 Jan 2024, 09:12: 0.796 mg/l15 Jan 2024, 09:44: 0.866 mg/l7 Feb 2024, 09:24: 0.836 mg/l19 Feb 2024, 09:23: 0.776 mg/l4 Mar 2024, 09:06: 0.646 mg/l20 Mar 2024, 09:12: 0.606 mg/l7 Apr 2025, 09:39: 0.406 mg/l16 Apr 2025, 10:41: 0.386 mg/l6 Oct 2025, 08:57: 0.806 mg/l20 Oct 2025, 09:32: 0.506 mg/l5 Nov 2025, 09:32: 0.766 mg/l17 Nov 2025, 11:24: 1.2 mg/l5 Dec 2025, 11:24: 1.4 mg/l15 Dec 2025, 11:14: 0.996 mg/l6 Jan 2026, 10:37: 1.1 mg/l20 Jan 2026, 09:19: 1.1 mg/l6 Feb 2026, 08:52: 1.4 mg/l16 Feb 2026, 11:10: 1.3 mg/l5 Mar 2026, 08:48: 0.906 mg/l16 Mar 2026, 12:02: 0.736 mg/l9 Apr 2026, 08:56: 0.396 mg/l13 Apr 2026, 11:22: 0.316 mg/l6 May 2026, 08:30: 0.316 mg/l20 May 2026, 10:13: 0.296 mg/l8 Jun 2026, 12:00: 0.366 mg/l17 Jun 2026, 08:53: 0.516 mg/l8 Jul 2026, 07:24: 0.436 mg/l13 Jul 2026, 11:01: 0.236 mg/l13 Aug 2026, 08:12: below 0.196 mg/l (not detected above this)20 Aug 2026, 11:12: 0.346 mg/l8 Sep 2026, 10:44: 0.306 mg/l14 Sep 2026, 08:51: 0.226 mg/l
Every result (38)
SampledResult as publishedReads as
14 Sep 2026, 08:510.226 0.226 mg/l
8 Sep 2026, 10:440.306 0.306 mg/l
20 Aug 2026, 11:120.346 0.346 mg/l
13 Aug 2026, 08:12<0.196 below 0.196 mg/l (not detected above this)
13 Jul 2026, 11:010.236 0.236 mg/l
8 Jul 2026, 07:240.436 0.436 mg/l
17 Jun 2026, 08:530.516 0.516 mg/l
8 Jun 2026, 12:000.366 0.366 mg/l
20 May 2026, 10:130.296 0.296 mg/l
6 May 2026, 08:300.316 0.316 mg/l
13 Apr 2026, 11:220.316 0.316 mg/l
9 Apr 2026, 08:560.396 0.396 mg/l
16 Mar 2026, 12:020.736 0.736 mg/l
5 Mar 2026, 08:480.906 0.906 mg/l
16 Feb 2026, 11:101.3 1.3 mg/l
6 Feb 2026, 08:521.4 1.4 mg/l
20 Jan 2026, 09:191.1 1.1 mg/l
6 Jan 2026, 10:371.1 1.1 mg/l
15 Dec 2025, 11:140.996 0.996 mg/l
5 Dec 2025, 11:241.4 1.4 mg/l
17 Nov 2025, 11:241.2 1.2 mg/l
5 Nov 2025, 09:320.766 0.766 mg/l
20 Oct 2025, 09:320.506 0.506 mg/l
6 Oct 2025, 08:570.806 0.806 mg/l
16 Apr 2025, 10:410.386 0.386 mg/l
7 Apr 2025, 09:390.406 0.406 mg/l
20 Mar 2024, 09:120.606 0.606 mg/l
4 Mar 2024, 09:060.646 0.646 mg/l
19 Feb 2024, 09:230.776 0.776 mg/l
7 Feb 2024, 09:240.836 0.836 mg/l
15 Jan 2024, 09:440.866 0.866 mg/l
3 Jan 2024, 09:120.796 0.796 mg/l
18 Dec 2023, 09:310.776 0.776 mg/l
4 Dec 2023, 09:470.936 0.936 mg/l
22 Nov 2023, 10:110.866 0.866 mg/l
2 Nov 2023, 09:460.896 0.896 mg/l
16 Oct 2023, 09:360.846 0.846 mg/l
3 Oct 2023, 08:560.616 0.616 mg/l

Phosphate

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

0.0024 mg/l

Sampled 14 Sep 2026, 17 days ago · 38 results banked

00.010.020.03mg/l2024202520263 Oct 2023, 08:56: below 0.01 mg/l (not detected above this)16 Oct 2023, 09:36: below 0.01 mg/l (not detected above this)2 Nov 2023, 09:46: 0.011 mg/l22 Nov 2023, 10:11: below 0.01 mg/l (not detected above this)4 Dec 2023, 09:47: 0.011 mg/l18 Dec 2023, 09:31: 0.013 mg/l3 Jan 2024, 09:12: 0.017 mg/l15 Jan 2024, 09:44: 0.013 mg/l7 Feb 2024, 09:24: 0.012 mg/l19 Feb 2024, 09:23: 0.012 mg/l4 Mar 2024, 09:06: below 0.01 mg/l (not detected above this)20 Mar 2024, 09:12: 0.027 mg/l7 Apr 2025, 09:39: 0.0018 mg/l16 Apr 2025, 10:41: below 0.001 mg/l (not detected above this)6 Oct 2025, 08:57: 0.0055 mg/l20 Oct 2025, 09:32: 0.013 mg/l5 Nov 2025, 09:32: 0.013 mg/l17 Nov 2025, 11:24: 0.014 mg/l5 Dec 2025, 11:24: 0.02 mg/l15 Dec 2025, 11:14: 0.016 mg/l6 Jan 2026, 10:37: 0.013 mg/l20 Jan 2026, 09:19: 0.015 mg/l6 Feb 2026, 08:52: 0.019 mg/l16 Feb 2026, 11:10: 0.016 mg/l5 Mar 2026, 08:48: 0.011 mg/l16 Mar 2026, 12:02: 0.0091 mg/l9 Apr 2026, 08:56: below 0.001 mg/l (not detected above this)13 Apr 2026, 11:22: below 0.001 mg/l (not detected above this)6 May 2026, 08:30: 0.0014 mg/l20 May 2026, 10:13: 0.0084 mg/l8 Jun 2026, 12:00: below 0.001 mg/l (not detected above this)17 Jun 2026, 08:53: 0.0084 mg/l8 Jul 2026, 07:24: 0.0085 mg/l13 Jul 2026, 11:01: 0.0044 mg/l13 Aug 2026, 08:12: 0.0019 mg/l20 Aug 2026, 11:12: below 0.001 mg/l (not detected above this)8 Sep 2026, 10:44: 0.0033 mg/l14 Sep 2026, 08:51: 0.0024 mg/l
Every result (38)
SampledResult as publishedReads as
14 Sep 2026, 08:510.0024 0.0024 mg/l
8 Sep 2026, 10:440.0033 0.0033 mg/l
20 Aug 2026, 11:12<0.001 below 0.001 mg/l (not detected above this)
13 Aug 2026, 08:120.0019 0.0019 mg/l
13 Jul 2026, 11:010.0044 0.0044 mg/l
8 Jul 2026, 07:240.0085 0.0085 mg/l
17 Jun 2026, 08:530.0084 0.0084 mg/l
8 Jun 2026, 12:00<0.001 below 0.001 mg/l (not detected above this)
20 May 2026, 10:130.0084 0.0084 mg/l
6 May 2026, 08:300.0014 0.0014 mg/l
13 Apr 2026, 11:22<0.001 below 0.001 mg/l (not detected above this)
9 Apr 2026, 08:56<0.001 below 0.001 mg/l (not detected above this)
16 Mar 2026, 12:020.0091 0.0091 mg/l
5 Mar 2026, 08:480.011 0.011 mg/l
16 Feb 2026, 11:100.016 0.016 mg/l
6 Feb 2026, 08:520.019 0.019 mg/l
20 Jan 2026, 09:190.015 0.015 mg/l
6 Jan 2026, 10:370.013 0.013 mg/l
15 Dec 2025, 11:140.016 0.016 mg/l
5 Dec 2025, 11:240.02 0.02 mg/l
17 Nov 2025, 11:240.014 0.014 mg/l
5 Nov 2025, 09:320.013 0.013 mg/l
20 Oct 2025, 09:320.013 0.013 mg/l
6 Oct 2025, 08:570.0055 0.0055 mg/l
16 Apr 2025, 10:41<0.001 below 0.001 mg/l (not detected above this)
7 Apr 2025, 09:390.0018 0.0018 mg/l
20 Mar 2024, 09:120.027 0.027 mg/l
4 Mar 2024, 09:06<0.01 below 0.01 mg/l (not detected above this)
19 Feb 2024, 09:230.012 0.012 mg/l
7 Feb 2024, 09:240.012 0.012 mg/l
15 Jan 2024, 09:440.013 0.013 mg/l
3 Jan 2024, 09:120.017 0.017 mg/l
18 Dec 2023, 09:310.013 0.013 mg/l
4 Dec 2023, 09:470.011 0.011 mg/l
22 Nov 2023, 10:11<0.01 below 0.01 mg/l (not detected above this)
2 Nov 2023, 09:460.011 0.011 mg/l
16 Oct 2023, 09:36<0.01 below 0.01 mg/l (not detected above this)
3 Oct 2023, 08:56<0.01 below 0.01 mg/l (not detected above this)

Everything measured here

12 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 12 rows
DeterminandMaterialResults First – lastLatest result
Temperature of Water 0076 River water 38 Oct 2023 – Sep 2026 13.2 °C 14 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 38 Oct 2023 – Sep 2026 below 0.03 mg/l 14 Sep 2026
Nitrate as N 0117 River water 38 Oct 2023 – Sep 2026 0.226 mg/l 14 Sep 2026
Orthophosphate, reactive as P 0180 River water 38 Oct 2023 – Sep 2026 0.0024 mg/l 14 Sep 2026
Nitrite as N 0118 River water 38 Oct 2023 – Sep 2026 below 0.004 mg/l 14 Sep 2026
Nitrogen, Kjeldahl as N 0114 River water 38 Oct 2023 – Sep 2026 0.19 mg/l 14 Sep 2026
Nitrogen, Organic as N 0113 River water 38 Oct 2023 – Sep 2026 0.16 mg/l 14 Sep 2026
Nitrogen, Total as N 9686 River water 38 Oct 2023 – Sep 2026 0.42 mg/l 14 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 38 Oct 2023 – Sep 2026 0.23 mg/l 14 Sep 2026
Phosphate :- {TIP} 0192 River water 38 Oct 2023 – Sep 2026 below 0.02 mg/l 14 Sep 2026
Phosphorus, Total as P 0348 River water 38 Oct 2023 – Sep 2026 below 0.01 mg/l 14 Sep 2026
Solids, Suspended at 105 C 0135 River water 38 Oct 2023 – Sep 2026 below 3 mg/l 14 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.