Gayle Beck at Gayle

EA name: GAYLE BECK AT GAYLE
Environment Agency sampling point NE-49105198 · 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 Mar 2025, 12:3819 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
18 since 16 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 387118, 489270As published, to the nearest 1 m. Open in a map
River, by its own name
Gayle Beck
River, by the map
Gayle BeckPlaced on the river its name gives, 6 m from the line.
Next gauge downstream
Bainbridge On the River Ure · 8.5 km along the river
Why it was sampled
Monitoring (national agency policy) (18 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

109.1%

Sampled 4 Mar 2025, 19 months ago · 18 results banked

100102104106108110%202420252026no sample published after Mar 202516 Oct 2023, 09:17: 106.9%20 Nov 2023, 10:35: 105.6%7 Dec 2023, 14:06: 101.9%16 Jan 2024, 09:34: 105.1%19 Feb 2024, 09:30: 103.2%18 Mar 2024, 10:38: 102.7%15 Apr 2024, 10:52: 102.6%13 May 2024, 11:46: 105%19 Jun 2024, 09:34: 104.9%25 Jul 2024, 11:26: 109.3%22 Aug 2024, 09:36: 108.4%16 Sep 2024, 10:36: 104%17 Oct 2024, 12:26: 103.1%18 Nov 2024, 09:31: 104.6%4 Dec 2024, 10:13: 103.9%21 Jan 2025, 08:58: 102.9%6 Feb 2025, 09:28: 103.7%4 Mar 2025, 12:38: 109.1%
Every result (18)
SampledResult as publishedReads as
4 Mar 2025, 12:38109.1 109.1%
6 Feb 2025, 09:28103.7 103.7%
21 Jan 2025, 08:58102.9 102.9%
4 Dec 2024, 10:13103.9 103.9%
18 Nov 2024, 09:31104.6 104.6%
17 Oct 2024, 12:26103.1 103.1%
16 Sep 2024, 10:36104 104%
22 Aug 2024, 09:36108.4 108.4%
25 Jul 2024, 11:26109.3 109.3%
19 Jun 2024, 09:34104.9 104.9%
13 May 2024, 11:46105 105%
15 Apr 2024, 10:52102.6 102.6%
18 Mar 2024, 10:38102.7 102.7%
19 Feb 2024, 09:30103.2 103.2%
16 Jan 2024, 09:34105.1 105.1%
7 Dec 2023, 14:06101.9 101.9%
20 Nov 2023, 10:35105.6 105.6%
16 Oct 2023, 09:17106.9 106.9%

Dissolved oxygen

as O2 · code 9924 · mg/l

13.5 mg/l

Sampled 4 Mar 2025, 19 months ago · 18 results banked

10121416mg/l202420252026no sample published after Mar 202516 Oct 2023, 09:17: 13.4 mg/l20 Nov 2023, 10:35: 12.3 mg/l7 Dec 2023, 14:06: 13.1 mg/l16 Jan 2024, 09:34: 13.9 mg/l19 Feb 2024, 09:30: 12.4 mg/l18 Mar 2024, 10:38: 12 mg/l15 Apr 2024, 10:52: 12.4 mg/l13 May 2024, 11:46: 10.3 mg/l19 Jun 2024, 09:34: 11.3 mg/l25 Jul 2024, 11:26: 10.6 mg/l22 Aug 2024, 09:36: 11.2 mg/l16 Sep 2024, 10:36: 11.7 mg/l17 Oct 2024, 12:26: 11.4 mg/l18 Nov 2024, 09:31: 14.4 mg/l4 Dec 2024, 10:13: 13.4 mg/l21 Jan 2025, 08:58: 13.3 mg/l6 Feb 2025, 09:28: 14.5 mg/l4 Mar 2025, 12:38: 13.5 mg/l
Every result (18)
SampledResult as publishedReads as
4 Mar 2025, 12:3813.5 13.5 mg/l
6 Feb 2025, 09:2814.5 14.5 mg/l
21 Jan 2025, 08:5813.3 13.3 mg/l
4 Dec 2024, 10:1313.4 13.4 mg/l
18 Nov 2024, 09:3114.4 14.4 mg/l
17 Oct 2024, 12:2611.4 11.4 mg/l
16 Sep 2024, 10:3611.7 11.7 mg/l
22 Aug 2024, 09:3611.2 11.2 mg/l
25 Jul 2024, 11:2610.6 10.6 mg/l
19 Jun 2024, 09:3411.3 11.3 mg/l
13 May 2024, 11:4610.3 10.3 mg/l
15 Apr 2024, 10:5212.4 12.4 mg/l
18 Mar 2024, 10:3812 12 mg/l
19 Feb 2024, 09:3012.4 12.4 mg/l
16 Jan 2024, 09:3413.9 13.9 mg/l
7 Dec 2023, 14:0613.1 13.1 mg/l
20 Nov 2023, 10:3512.3 12.3 mg/l
16 Oct 2023, 09:1713.4 13.4 mg/l

Water temperature

code 0076 · °C

6.3 °C

Sampled 4 Mar 2025, 19 months ago · 18 results banked

05101520°C202420252026no sample published after Mar 202516 Oct 2023, 09:17: 5.8 °C20 Nov 2023, 10:35: 8.6 °C7 Dec 2023, 14:06: 4.6 °C16 Jan 2024, 09:34: 3.7 °C19 Feb 2024, 09:30: 7.3 °C18 Mar 2024, 10:38: 8.4 °C15 Apr 2024, 10:52: 7 °C13 May 2024, 11:46: 16.2 °C19 Jun 2024, 09:34: 11.9 °C25 Jul 2024, 11:26: 16.5 °C22 Aug 2024, 09:36: 13.6 °C16 Sep 2024, 10:36: 10.2 °C17 Oct 2024, 12:26: 10.9 °C18 Nov 2024, 09:31: 2.2 °C4 Dec 2024, 10:13: 4.5 °C21 Jan 2025, 08:58: 4.6 °C6 Feb 2025, 09:28: 1.5 °C4 Mar 2025, 12:38: 6.3 °C
Every result (18)
SampledResult as publishedReads as
4 Mar 2025, 12:386.3 6.3 °C
6 Feb 2025, 09:281.5 1.5 °C
21 Jan 2025, 08:584.6 4.6 °C
4 Dec 2024, 10:134.5 4.5 °C
18 Nov 2024, 09:312.2 2.2 °C
17 Oct 2024, 12:2610.9 10.9 °C
16 Sep 2024, 10:3610.2 10.2 °C
22 Aug 2024, 09:3613.6 13.6 °C
25 Jul 2024, 11:2616.5 16.5 °C
19 Jun 2024, 09:3411.9 11.9 °C
13 May 2024, 11:4616.2 16.2 °C
15 Apr 2024, 10:527 7 °C
18 Mar 2024, 10:388.4 8.4 °C
19 Feb 2024, 09:307.3 7.3 °C
16 Jan 2024, 09:343.7 3.7 °C
7 Dec 2023, 14:064.6 4.6 °C
20 Nov 2023, 10:358.6 8.6 °C
16 Oct 2023, 09:175.8 5.8 °C

pH

code 0061

9.26

Sampled 4 Mar 2025, 19 months ago · 18 results banked

88.599.5202420252026no sample published after Mar 202516 Oct 2023, 09:17: 8.4720 Nov 2023, 10:35: 8.147 Dec 2023, 14:06: 8.0616 Jan 2024, 09:34: 8.2719 Feb 2024, 09:30: 8.2418 Mar 2024, 10:38: 8.3915 Apr 2024, 10:52: 8.0713 May 2024, 11:46: 8.719 Jun 2024, 09:34: 8.9725 Jul 2024, 11:26: 9.0222 Aug 2024, 09:36: 8.1216 Sep 2024, 10:36: 8.7317 Oct 2024, 12:26: 8.9418 Nov 2024, 09:31: 8.54 Dec 2024, 10:13: 8.4121 Jan 2025, 08:58: 8.266 Feb 2025, 09:28: 8.274 Mar 2025, 12:38: 9.26
Every result (18)
SampledResult as publishedReads as
4 Mar 2025, 12:389.26 9.26
6 Feb 2025, 09:288.27 8.27
21 Jan 2025, 08:588.26 8.26
4 Dec 2024, 10:138.41 8.41
18 Nov 2024, 09:318.5 8.5
17 Oct 2024, 12:268.94 8.94
16 Sep 2024, 10:368.73 8.73
22 Aug 2024, 09:368.12 8.12
25 Jul 2024, 11:269.02 9.02
19 Jun 2024, 09:348.97 8.97
13 May 2024, 11:468.7 8.7
15 Apr 2024, 10:528.07 8.07
18 Mar 2024, 10:388.39 8.39
19 Feb 2024, 09:308.24 8.24
16 Jan 2024, 09:348.27 8.27
7 Dec 2023, 14:068.06 8.06
20 Nov 2023, 10:358.14 8.14
16 Oct 2023, 09:178.47 8.47

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 4 Mar 2025, 19 months ago · 17 results banked

0.020.040.060.08mg/l202420252026no sample published after Mar 202516 Oct 2023, 09:17: below 0.03 mg/l (not detected above this)20 Nov 2023, 10:35: below 0.03 mg/l (not detected above this)7 Dec 2023, 14:06: below 0.03 mg/l (not detected above this)16 Jan 2024, 09:34: below 0.03 mg/l (not detected above this)19 Feb 2024, 09:30: below 0.03 mg/l (not detected above this)18 Mar 2024, 10:38: below 0.03 mg/l (not detected above this)15 Apr 2024, 10:52: below 0.03 mg/l (not detected above this)13 May 2024, 11:46: below 0.03 mg/l (not detected above this)19 Jun 2024, 09:34: below 0.03 mg/l (not detected above this)25 Jul 2024, 11:26: below 0.03 mg/l (not detected above this)22 Aug 2024, 09:36: below 0.03 mg/l (not detected above this)16 Sep 2024, 10:36: below 0.03 mg/l (not detected above this)17 Oct 2024, 12:26: below 0.03 mg/l (not detected above this)18 Nov 2024, 09:31: 0.077 mg/l21 Jan 2025, 08:58: below 0.03 mg/l (not detected above this)6 Feb 2025, 09:28: below 0.03 mg/l (not detected above this)4 Mar 2025, 12:38: below 0.03 mg/l (not detected above this)
Every result (17)
SampledResult as publishedReads as
4 Mar 2025, 12:38<0.03 below 0.03 mg/l (not detected above this)
6 Feb 2025, 09:28<0.03 below 0.03 mg/l (not detected above this)
21 Jan 2025, 08:58<0.03 below 0.03 mg/l (not detected above this)
18 Nov 2024, 09:310.077 0.077 mg/l
17 Oct 2024, 12:26<0.03 below 0.03 mg/l (not detected above this)
16 Sep 2024, 10:36<0.03 below 0.03 mg/l (not detected above this)
22 Aug 2024, 09:36<0.03 below 0.03 mg/l (not detected above this)
25 Jul 2024, 11:26<0.03 below 0.03 mg/l (not detected above this)
19 Jun 2024, 09:34<0.03 below 0.03 mg/l (not detected above this)
13 May 2024, 11:46<0.03 below 0.03 mg/l (not detected above this)
15 Apr 2024, 10:52<0.03 below 0.03 mg/l (not detected above this)
18 Mar 2024, 10:38<0.03 below 0.03 mg/l (not detected above this)
19 Feb 2024, 09:30<0.03 below 0.03 mg/l (not detected above this)
16 Jan 2024, 09:34<0.03 below 0.03 mg/l (not detected above this)
7 Dec 2023, 14:06<0.03 below 0.03 mg/l (not detected above this)
20 Nov 2023, 10:35<0.03 below 0.03 mg/l (not detected above this)
16 Oct 2023, 09:17<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

0.216 mg/l

Sampled 4 Mar 2025, 19 months ago · 17 results banked

0.10.20.30.40.50.6mg/l202420252026no sample published after Mar 202516 Oct 2023, 09:17: 0.206 mg/l20 Nov 2023, 10:35: 0.456 mg/l7 Dec 2023, 14:06: 0.546 mg/l16 Jan 2024, 09:34: 0.426 mg/l19 Feb 2024, 09:30: 0.406 mg/l18 Mar 2024, 10:38: 0.246 mg/l15 Apr 2024, 10:52: below 0.196 mg/l (not detected above this)13 May 2024, 11:46: 0.216 mg/l19 Jun 2024, 09:34: below 0.196 mg/l (not detected above this)25 Jul 2024, 11:26: below 0.196 mg/l (not detected above this)22 Aug 2024, 09:36: below 0.196 mg/l (not detected above this)16 Sep 2024, 10:36: below 0.196 mg/l (not detected above this)17 Oct 2024, 12:26: 0.266 mg/l18 Nov 2024, 09:31: 0.256 mg/l21 Jan 2025, 08:58: 0.486 mg/l6 Feb 2025, 09:28: 0.556 mg/l4 Mar 2025, 12:38: 0.216 mg/l
Every result (17)
SampledResult as publishedReads as
4 Mar 2025, 12:380.216 0.216 mg/l
6 Feb 2025, 09:280.556 0.556 mg/l
21 Jan 2025, 08:580.486 0.486 mg/l
18 Nov 2024, 09:310.256 0.256 mg/l
17 Oct 2024, 12:260.266 0.266 mg/l
16 Sep 2024, 10:36<0.196 below 0.196 mg/l (not detected above this)
22 Aug 2024, 09:36<0.196 below 0.196 mg/l (not detected above this)
25 Jul 2024, 11:26<0.196 below 0.196 mg/l (not detected above this)
19 Jun 2024, 09:34<0.196 below 0.196 mg/l (not detected above this)
13 May 2024, 11:460.216 0.216 mg/l
15 Apr 2024, 10:52<0.196 below 0.196 mg/l (not detected above this)
18 Mar 2024, 10:380.246 0.246 mg/l
19 Feb 2024, 09:300.406 0.406 mg/l
16 Jan 2024, 09:340.426 0.426 mg/l
7 Dec 2023, 14:060.546 0.546 mg/l
20 Nov 2023, 10:350.456 0.456 mg/l
16 Oct 2023, 09:170.206 0.206 mg/l

Phosphate

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

below 0.01 mg/l (not detected above this)

Sampled 4 Mar 2025, 19 months ago · 17 results banked

0.010.0150.020.0250.03mg/l202420252026no sample published after Mar 202516 Oct 2023, 09:17: below 0.01 mg/l (not detected above this)20 Nov 2023, 10:35: 0.011 mg/l7 Dec 2023, 14:06: below 0.01 mg/l (not detected above this)16 Jan 2024, 09:34: below 0.01 mg/l (not detected above this)19 Feb 2024, 09:30: below 0.01 mg/l (not detected above this)18 Mar 2024, 10:38: below 0.01 mg/l (not detected above this)15 Apr 2024, 10:52: 0.012 mg/l13 May 2024, 11:46: below 0.01 mg/l (not detected above this)19 Jun 2024, 09:34: below 0.01 mg/l (not detected above this)25 Jul 2024, 11:26: below 0.01 mg/l (not detected above this)22 Aug 2024, 09:36: 0.028 mg/l16 Sep 2024, 10:36: below 0.01 mg/l (not detected above this)17 Oct 2024, 12:26: 0.011 mg/l18 Nov 2024, 09:31: below 0.01 mg/l (not detected above this)21 Jan 2025, 08:58: below 0.01 mg/l (not detected above this)6 Feb 2025, 09:28: below 0.01 mg/l (not detected above this)4 Mar 2025, 12:38: below 0.01 mg/l (not detected above this)
Every result (17)
SampledResult as publishedReads as
4 Mar 2025, 12:38<0.01 below 0.01 mg/l (not detected above this)
6 Feb 2025, 09:28<0.01 below 0.01 mg/l (not detected above this)
21 Jan 2025, 08:58<0.01 below 0.01 mg/l (not detected above this)
18 Nov 2024, 09:31<0.01 below 0.01 mg/l (not detected above this)
17 Oct 2024, 12:260.011 0.011 mg/l
16 Sep 2024, 10:36<0.01 below 0.01 mg/l (not detected above this)
22 Aug 2024, 09:360.028 0.028 mg/l
25 Jul 2024, 11:26<0.01 below 0.01 mg/l (not detected above this)
19 Jun 2024, 09:34<0.01 below 0.01 mg/l (not detected above this)
13 May 2024, 11:46<0.01 below 0.01 mg/l (not detected above this)
15 Apr 2024, 10:520.012 0.012 mg/l
18 Mar 2024, 10:38<0.01 below 0.01 mg/l (not detected above this)
19 Feb 2024, 09:30<0.01 below 0.01 mg/l (not detected above this)
16 Jan 2024, 09:34<0.01 below 0.01 mg/l (not detected above this)
7 Dec 2023, 14:06<0.01 below 0.01 mg/l (not detected above this)
20 Nov 2023, 10:350.011 0.011 mg/l
16 Oct 2023, 09:17<0.01 below 0.01 mg/l (not detected above this)

Conductivity

at 25 °C · code 0077 · µS/cm

238 µS/cm

Sampled 4 Mar 2025, 19 months ago · 18 results banked

0100200300400500µS/cm202420252026no sample published after Mar 202516 Oct 2023, 09:17: 219 µS/cm20 Nov 2023, 10:35: 138 µS/cm7 Dec 2023, 14:06: 224 µS/cm16 Jan 2024, 09:34: 224 µS/cm19 Feb 2024, 09:30: 155 µS/cm18 Mar 2024, 10:38: 142 µS/cm15 Apr 2024, 10:52: 94 µS/cm13 May 2024, 11:46: 176 µS/cm19 Jun 2024, 09:34: 408 µS/cm25 Jul 2024, 11:26: 246 µS/cm22 Aug 2024, 09:36: 121 µS/cm16 Sep 2024, 10:36: 199 µS/cm17 Oct 2024, 12:26: 161 µS/cm18 Nov 2024, 09:31: 239 µS/cm4 Dec 2024, 10:13: 197 µS/cm21 Jan 2025, 08:58: 289 µS/cm6 Feb 2025, 09:28: 211 µS/cm4 Mar 2025, 12:38: 238 µS/cm
Every result (18)
SampledResult as publishedReads as
4 Mar 2025, 12:38238 238 µS/cm
6 Feb 2025, 09:28211 211 µS/cm
21 Jan 2025, 08:58289 289 µS/cm
4 Dec 2024, 10:13197 197 µS/cm
18 Nov 2024, 09:31239 239 µS/cm
17 Oct 2024, 12:26161 161 µS/cm
16 Sep 2024, 10:36199 199 µS/cm
22 Aug 2024, 09:36121 121 µS/cm
25 Jul 2024, 11:26246 246 µS/cm
19 Jun 2024, 09:34408 408 µS/cm
13 May 2024, 11:46176 176 µS/cm
15 Apr 2024, 10:5294 94 µS/cm
18 Mar 2024, 10:38142 142 µS/cm
19 Feb 2024, 09:30155 155 µS/cm
16 Jan 2024, 09:34224 224 µS/cm
7 Dec 2023, 14:06224 224 µS/cm
20 Nov 2023, 10:35138 138 µS/cm
16 Oct 2023, 09:17219 219 µS/cm

Everything measured here

60 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 60 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 18 Oct 2023 – Mar 2025 109.1% 4 Mar 2025
Oxygen, Dissolved as O2 9924 River water 18 Oct 2023 – Mar 2025 13.5 mg/l 4 Mar 2025
Temperature of Water 0076 River water 18 Oct 2023 – Mar 2025 6.3 °C 4 Mar 2025
pH 0061 River water 18 Oct 2023 – Mar 2025 9.26 4 Mar 2025
Ammoniacal Nitrogen as N 0111 River water 17 Oct 2023 – Mar 2025 below 0.03 mg/l 4 Mar 2025
Nitrate as N 0117 River water 17 Oct 2023 – Mar 2025 0.216 mg/l 4 Mar 2025
Orthophosphate, reactive as P 0180 River water 17 Oct 2023 – Mar 2025 below 0.01 mg/l 4 Mar 2025
Conductivity at 25 C 0077 River water 18 Oct 2023 – Mar 2025 238 µS/cm 4 Mar 2025
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
3-Perfluoroheptylpropanoic acid 2925 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
3:3 Fluorotelomer carboxylic acid 2926 River water 3 Oct 2023 – Feb 2025 below 0.004 µg/l 6 Feb 2025
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 3 Oct 2023 – Feb 2025 below 0.005 µg/l 6 Feb 2025
4:2 Fluorotelomer sulfonic acid 2987 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
6:2 Fluorotelomer sulfonic acid 2984 River water 3 Oct 2023 – Feb 2025 0.0038 µg/l 6 Feb 2025
8:2 Fluorotelomer sulfonic acid 2983 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Alkalinity to pH 4.5 as CaCO3 0162 River water 17 Oct 2023 – Mar 2025 90 mg/l 4 Mar 2025
Ammonia un-ionised as N 0119 River water 17 Oct 2023 – Mar 2025 below 0.00042 mg/l 4 Mar 2025
BOD : 5 Day ATU 0085 River water 14 Feb 2024 – Mar 2025 1.6 mg/l 4 Mar 2025
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
N-Ethylperfluorooctanesulfonamide 2977 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
N-methylperfluorooctanesulfonamide 2975 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
Nitrite as N 0118 River water 17 Oct 2023 – Mar 2025 below 0.004 mg/l 4 Mar 2025
Nitrogen, Total Oxidised as N 0116 River water 17 Oct 2023 – Mar 2025 0.22 mg/l 4 Mar 2025
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoro(4-methoxybutanoic) acid 2923 River water 2 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoro-3-methoxypropanoic acid 2921 River water 2 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorobutanesulfonic acid 2972 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorobutanoic acid 2995 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorodecanesulfonic acid 2969 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
Perfluorodecanoic acid 8892 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
Perfluorododecane sulfonic acid 2968 River water 3 Oct 2023 – Feb 2025 below 0.005 µg/l 6 Feb 2025
Perfluorododecanoic acid 8894 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
Perfluoroheptanesulfonic acid 2967 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoroheptanoic acid 8889 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorohexanesulfonamide 2965 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorohexanesulfonic acid (B) 2944 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorohexanesulfonic acid (L) 2964 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorohexanoic acid 8888 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorononanesulfonic acid 2963 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorononanoic acid 8891 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorooctadecanoic acid 2962 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 2025
Perfluorooctanesulfonamide 2961 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorooctanesulfonic acid (branched) 2960 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorooctanesulfonic acid (linear) 2959 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluorooctanoic acid 8890 River water 3 Oct 2023 – Feb 2025 0.00086 µg/l 6 Feb 2025
Perfluoropentanesulfonic acid 2957 River water 3 Oct 2023 – Feb 2025 below 0.0005 µg/l 6 Feb 2025
Perfluoropentanoic acid 8887 River water 3 Oct 2023 – Feb 2025 below 0.001 µg/l 6 Feb 2025
Perfluorotetradecanoic acid 8895 River water 2 Feb 2024 – Feb 2025 below 0.006 µg/l 6 Feb 2025
Perfluorotridecanoic acid 2955 River water 3 Oct 2023 – Feb 2025 below 0.005 µg/l 6 Feb 2025
Perfluoroundecane sulfonic acid 2953 River water 3 Oct 2023 – Feb 2025 below 0.004 µg/l 6 Feb 2025
Perfluoroundecanoic acid 8893 River water 3 Oct 2023 – Feb 2025 below 0.002 µg/l 6 Feb 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.