Lonco Brook at Whitleyford Bridge

EA name: LONCO BROOK AT WHITLEYFORD BRIDGE (also listed as “LONCO BROOK AT WHITLEYFOED BRIDGE”)
Environment Agency sampling point MD-28512180 · 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, 11:244 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 25 Jun 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 374652, 323862As published, to the nearest 1 m. Open in a map
River, by its own name
Lonco Brook
River, by the map
Lonco BrookPlaced on the river its name gives, 3 m from the line.
Next gauge downstream
Tibberton On the River Meese · 16 km along the river (the path rests on a repair to the map)Beside Whitleyford Bridge: too close to say above or below.
Why it was sampled
Monitoring (national agency policy) (12 samples)
Environmental monitoring statutory (EU directives) (10 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

98.3%

Sampled 18 May 2026, 4 months ago · 22 results banked

859095100105%20242025202625 Jun 2024, 13:34: 99.8%16 Jul 2024, 09:44: 89%29 Aug 2024, 13:20: 97.4%17 Sep 2024, 14:24: 93.2%21 Oct 2024, 13:57: 90.7%28 Nov 2024, 14:53: 93.7%6 Dec 2024, 09:12: 90.4%31 Jan 2025, 10:30: 97.5%26 Feb 2025, 11:30: 99.4%5 Mar 2025, 10:34: 98.8%16 Apr 2025, 11:08: 97.3%19 May 2025, 11:00: 98.2%5 Jun 2025, 13:36: 97.8%17 Jul 2025, 08:27: 89.6%7 Aug 2025, 10:00: 95.3%10 Sep 2025, 11:46: 94.1%3 Oct 2025, 13:40: 89.2%28 Nov 2025, 09:22: 96.7%18 Dec 2025, 12:02: 91.2%23 Feb 2026, 10:01: 98.4%11 Mar 2026, 11:21: 100.3%18 May 2026, 11:24: 98.3%
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:2498.3 98.3%
11 Mar 2026, 11:21100.3 100.3%
23 Feb 2026, 10:0198.4 98.4%
18 Dec 2025, 12:0291.2 91.2%
28 Nov 2025, 09:2296.7 96.7%
3 Oct 2025, 13:4089.2 89.2%
10 Sep 2025, 11:4694.1 94.1%
7 Aug 2025, 10:0095.3 95.3%
17 Jul 2025, 08:2789.6 89.6%
5 Jun 2025, 13:3697.8 97.8%
19 May 2025, 11:0098.2 98.2%
16 Apr 2025, 11:0897.3 97.3%
5 Mar 2025, 10:3498.8 98.8%
26 Feb 2025, 11:3099.4 99.4%
31 Jan 2025, 10:3097.5 97.5%
6 Dec 2024, 09:1290.4 90.4%
28 Nov 2024, 14:5393.7 93.7%
21 Oct 2024, 13:5790.7 90.7%
17 Sep 2024, 14:2493.2 93.2%
29 Aug 2024, 13:2097.4 97.4%
16 Jul 2024, 09:4489 89%
25 Jun 2024, 13:3499.8 99.8%

Dissolved oxygen

as O2 · code 9924 · mg/l

10.8 mg/l

Sampled 18 May 2026, 4 months ago · 22 results banked

8910111213mg/l20242025202625 Jun 2024, 13:34: 9.58 mg/l16 Jul 2024, 09:44: 8.89 mg/l29 Aug 2024, 13:20: 9.93 mg/l17 Sep 2024, 14:24: 9.73 mg/l21 Oct 2024, 13:57: 9.87 mg/l28 Nov 2024, 14:53: 12 mg/l6 Dec 2024, 09:12: 10.9 mg/l31 Jan 2025, 10:30: 12.3 mg/l26 Feb 2025, 11:30: 12 mg/l5 Mar 2025, 10:34: 12.3 mg/l16 Apr 2025, 11:08: 11.3 mg/l19 May 2025, 11:00: 10.7 mg/l5 Jun 2025, 13:36: 10.2 mg/l17 Jul 2025, 08:27: 8.93 mg/l7 Aug 2025, 10:00: 9.71 mg/l10 Sep 2025, 11:46: 9.74 mg/l3 Oct 2025, 13:40: 9.27 mg/l28 Nov 2025, 09:22: 11.5 mg/l18 Dec 2025, 12:02: 10.8 mg/l23 Feb 2026, 10:01: 11.7 mg/l11 Mar 2026, 11:21: 11.5 mg/l18 May 2026, 11:24: 10.8 mg/l
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:2410.8 10.8 mg/l
11 Mar 2026, 11:2111.5 11.5 mg/l
23 Feb 2026, 10:0111.7 11.7 mg/l
18 Dec 2025, 12:0210.8 10.8 mg/l
28 Nov 2025, 09:2211.5 11.5 mg/l
3 Oct 2025, 13:409.27 9.27 mg/l
10 Sep 2025, 11:469.74 9.74 mg/l
7 Aug 2025, 10:009.71 9.71 mg/l
17 Jul 2025, 08:278.93 8.93 mg/l
5 Jun 2025, 13:3610.2 10.2 mg/l
19 May 2025, 11:0010.7 10.7 mg/l
16 Apr 2025, 11:0811.3 11.3 mg/l
5 Mar 2025, 10:3412.3 12.3 mg/l
26 Feb 2025, 11:3012 12 mg/l
31 Jan 2025, 10:3012.3 12.3 mg/l
6 Dec 2024, 09:1210.9 10.9 mg/l
28 Nov 2024, 14:5312 12 mg/l
21 Oct 2024, 13:579.87 9.87 mg/l
17 Sep 2024, 14:249.73 9.73 mg/l
29 Aug 2024, 13:209.93 9.93 mg/l
16 Jul 2024, 09:448.89 8.89 mg/l
25 Jun 2024, 13:349.58 9.58 mg/l

Water temperature

code 0076 · °C

11 °C

Sampled 18 May 2026, 4 months ago · 22 results banked

05101520°C20242025202625 Jun 2024, 13:34: 17.2 °C16 Jul 2024, 09:44: 15.3 °C29 Aug 2024, 13:20: 14.4 °C17 Sep 2024, 14:24: 13.3 °C21 Oct 2024, 13:57: 11.5 °C28 Nov 2024, 14:53: 4.7 °C6 Dec 2024, 09:12: 7.1 °C31 Jan 2025, 10:30: 5.5 °C26 Feb 2025, 11:30: 7 °C5 Mar 2025, 10:34: 6 °C16 Apr 2025, 11:08: 8.7 °C19 May 2025, 11:00: 11.4 °C5 Jun 2025, 13:36: 13.5 °C17 Jul 2025, 08:27: 15.4 °C7 Aug 2025, 10:00: 14.4 °C10 Sep 2025, 11:46: 13.7 °C3 Oct 2025, 13:40: 13.5 °C28 Nov 2025, 09:22: 7.9 °C18 Dec 2025, 12:02: 8.1 °C23 Feb 2026, 10:01: 7.8 °C11 Mar 2026, 11:21: 9.2 °C18 May 2026, 11:24: 11 °C
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:2411 11 °C
11 Mar 2026, 11:219.2 9.2 °C
23 Feb 2026, 10:017.8 7.8 °C
18 Dec 2025, 12:028.1 8.1 °C
28 Nov 2025, 09:227.9 7.9 °C
3 Oct 2025, 13:4013.5 13.5 °C
10 Sep 2025, 11:4613.7 13.7 °C
7 Aug 2025, 10:0014.4 14.4 °C
17 Jul 2025, 08:2715.4 15.4 °C
5 Jun 2025, 13:3613.5 13.5 °C
19 May 2025, 11:0011.4 11.4 °C
16 Apr 2025, 11:088.7 8.7 °C
5 Mar 2025, 10:346 6 °C
26 Feb 2025, 11:307 7 °C
31 Jan 2025, 10:305.5 5.5 °C
6 Dec 2024, 09:127.1 7.1 °C
28 Nov 2024, 14:534.7 4.7 °C
21 Oct 2024, 13:5711.5 11.5 °C
17 Sep 2024, 14:2413.3 13.3 °C
29 Aug 2024, 13:2014.4 14.4 °C
16 Jul 2024, 09:4415.3 15.3 °C
25 Jun 2024, 13:3417.2 17.2 °C

pH

code 0061

8.11

Sampled 18 May 2026, 4 months ago · 22 results banked

7.67.888.28.420242025202625 Jun 2024, 13:34: 8.1416 Jul 2024, 09:44: 7.8729 Aug 2024, 13:20: 8.2617 Sep 2024, 14:24: 8.3321 Oct 2024, 13:57: 7.8328 Nov 2024, 14:53: 7.956 Dec 2024, 09:12: 7.6931 Jan 2025, 10:30: 8.0426 Feb 2025, 11:30: 7.875 Mar 2025, 10:34: 8.2116 Apr 2025, 11:08: 8.1419 May 2025, 11:00: 8.195 Jun 2025, 13:36: 8.117 Jul 2025, 08:27: 8.067 Aug 2025, 10:00: 8.110 Sep 2025, 11:46: 8.153 Oct 2025, 13:40: 8.3128 Nov 2025, 09:22: 7.8118 Dec 2025, 12:02: 7.6423 Feb 2026, 10:01: 7.9911 Mar 2026, 11:21: 7.9518 May 2026, 11:24: 8.11
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:248.11 8.11
11 Mar 2026, 11:217.95 7.95
23 Feb 2026, 10:017.99 7.99
18 Dec 2025, 12:027.64 7.64
28 Nov 2025, 09:227.81 7.81
3 Oct 2025, 13:408.31 8.31
10 Sep 2025, 11:468.15 8.15
7 Aug 2025, 10:008.1 8.1
17 Jul 2025, 08:278.06 8.06
5 Jun 2025, 13:368.1 8.1
19 May 2025, 11:008.19 8.19
16 Apr 2025, 11:088.14 8.14
5 Mar 2025, 10:348.21 8.21
26 Feb 2025, 11:307.87 7.87
31 Jan 2025, 10:308.04 8.04
6 Dec 2024, 09:127.69 7.69
28 Nov 2024, 14:537.95 7.95
21 Oct 2024, 13:577.83 7.83
17 Sep 2024, 14:248.33 8.33
29 Aug 2024, 13:208.26 8.26
16 Jul 2024, 09:447.87 7.87
25 Jun 2024, 13:348.14 8.14

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 · 22 results banked

00.050.10.150.2mg/l20242025202625 Jun 2024, 13:34: below 0.03 mg/l (not detected above this)16 Jul 2024, 09:44: below 0.03 mg/l (not detected above this)29 Aug 2024, 13:20: below 0.03 mg/l (not detected above this)17 Sep 2024, 14:24: below 0.03 mg/l (not detected above this)21 Oct 2024, 13:57: 0.03 mg/l28 Nov 2024, 14:53: 0.11 mg/l6 Dec 2024, 09:12: 0.19 mg/l31 Jan 2025, 10:30: 0.056 mg/l26 Feb 2025, 11:30: 0.041 mg/l5 Mar 2025, 10:34: below 0.03 mg/l (not detected above this)16 Apr 2025, 11:08: below 0.03 mg/l (not detected above this)19 May 2025, 11:00: below 0.03 mg/l (not detected above this)5 Jun 2025, 13:36: 0.035 mg/l17 Jul 2025, 08:27: below 0.03 mg/l (not detected above this)7 Aug 2025, 10:00: below 0.03 mg/l (not detected above this)10 Sep 2025, 11:46: below 0.03 mg/l (not detected above this)3 Oct 2025, 13:40: below 0.03 mg/l (not detected above this)28 Nov 2025, 09:22: below 0.03 mg/l (not detected above this)18 Dec 2025, 12:02: 0.039 mg/l23 Feb 2026, 10:01: below 0.03 mg/l (not detected above this)11 Mar 2026, 11:21: below 0.03 mg/l (not detected above this)18 May 2026, 11:24: below 0.03 mg/l (not detected above this)
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:24<0.03 below 0.03 mg/l (not detected above this)
11 Mar 2026, 11:21<0.03 below 0.03 mg/l (not detected above this)
23 Feb 2026, 10:01<0.03 below 0.03 mg/l (not detected above this)
18 Dec 2025, 12:020.039 0.039 mg/l
28 Nov 2025, 09:22<0.03 below 0.03 mg/l (not detected above this)
3 Oct 2025, 13:40<0.03 below 0.03 mg/l (not detected above this)
10 Sep 2025, 11:46<0.03 below 0.03 mg/l (not detected above this)
7 Aug 2025, 10:00<0.03 below 0.03 mg/l (not detected above this)
17 Jul 2025, 08:27<0.03 below 0.03 mg/l (not detected above this)
5 Jun 2025, 13:360.035 0.035 mg/l
19 May 2025, 11:00<0.03 below 0.03 mg/l (not detected above this)
16 Apr 2025, 11:08<0.03 below 0.03 mg/l (not detected above this)
5 Mar 2025, 10:34<0.03 below 0.03 mg/l (not detected above this)
26 Feb 2025, 11:300.041 0.041 mg/l
31 Jan 2025, 10:300.056 0.056 mg/l
6 Dec 2024, 09:120.19 0.19 mg/l
28 Nov 2024, 14:530.11 0.11 mg/l
21 Oct 2024, 13:570.03 0.03 mg/l
17 Sep 2024, 14:24<0.03 below 0.03 mg/l (not detected above this)
29 Aug 2024, 13:20<0.03 below 0.03 mg/l (not detected above this)
16 Jul 2024, 09:44<0.03 below 0.03 mg/l (not detected above this)
25 Jun 2024, 13:34<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

11 mg/l

Sampled 18 May 2026, 4 months ago · 22 results banked

68101214mg/l20242025202625 Jun 2024, 13:34: 11 mg/l16 Jul 2024, 09:44: 7.18 mg/l29 Aug 2024, 13:20: 11 mg/l17 Sep 2024, 14:24: 9.98 mg/l21 Oct 2024, 13:57: 7.37 mg/l28 Nov 2024, 14:53: 9.15 mg/l6 Dec 2024, 09:12: 7.84 mg/l31 Jan 2025, 10:30: 9.27 mg/l26 Feb 2025, 11:30: 9.77 mg/l5 Mar 2025, 10:34: 11 mg/l16 Apr 2025, 11:08: 12 mg/l19 May 2025, 11:00: 12 mg/l5 Jun 2025, 13:36: 11 mg/l17 Jul 2025, 08:27: 11 mg/l7 Aug 2025, 10:00: 12 mg/l10 Sep 2025, 11:46: 11 mg/l3 Oct 2025, 13:40: 12 mg/l28 Nov 2025, 09:22: 13 mg/l18 Dec 2025, 12:02: 13 mg/l23 Feb 2026, 10:01: 9.48 mg/l11 Mar 2026, 11:21: 9.98 mg/l18 May 2026, 11:24: 11 mg/l
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:2411 11 mg/l
11 Mar 2026, 11:219.98 9.98 mg/l
23 Feb 2026, 10:019.48 9.48 mg/l
18 Dec 2025, 12:0213 13 mg/l
28 Nov 2025, 09:2213 13 mg/l
3 Oct 2025, 13:4012 12 mg/l
10 Sep 2025, 11:4611 11 mg/l
7 Aug 2025, 10:0012 12 mg/l
17 Jul 2025, 08:2711 11 mg/l
5 Jun 2025, 13:3611 11 mg/l
19 May 2025, 11:0012 12 mg/l
16 Apr 2025, 11:0812 12 mg/l
5 Mar 2025, 10:3411 11 mg/l
26 Feb 2025, 11:309.77 9.77 mg/l
31 Jan 2025, 10:309.27 9.27 mg/l
6 Dec 2024, 09:127.84 7.84 mg/l
28 Nov 2024, 14:539.15 9.15 mg/l
21 Oct 2024, 13:577.37 7.37 mg/l
17 Sep 2024, 14:249.98 9.98 mg/l
29 Aug 2024, 13:2011 11 mg/l
16 Jul 2024, 09:447.18 7.18 mg/l
25 Jun 2024, 13:3411 11 mg/l

Phosphate

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

0.32 mg/l

Sampled 18 May 2026, 4 months ago · 21 results banked

00.10.20.30.40.5mg/l20242025202625 Jun 2024, 13:34: 0.2 mg/l16 Jul 2024, 09:44: 0.46 mg/l29 Aug 2024, 13:20: 0.25 mg/l17 Sep 2024, 14:24: 0.24 mg/l21 Oct 2024, 13:57: 0.19 mg/l28 Nov 2024, 14:53: 0.14 mg/l31 Jan 2025, 10:30: 0.15 mg/l26 Feb 2025, 11:30: 0.23 mg/l5 Mar 2025, 10:34: 0.063 mg/l16 Apr 2025, 11:08: 0.074 mg/l19 May 2025, 11:00: 0.13 mg/l5 Jun 2025, 13:36: 0.18 mg/l17 Jul 2025, 08:27: 0.19 mg/l7 Aug 2025, 10:00: 0.16 mg/l10 Sep 2025, 11:46: 0.16 mg/l3 Oct 2025, 13:40: 0.13 mg/l28 Nov 2025, 09:22: 0.14 mg/l18 Dec 2025, 12:02: 0.13 mg/l23 Feb 2026, 10:01: 0.08 mg/l11 Mar 2026, 11:21: 0.089 mg/l18 May 2026, 11:24: 0.32 mg/l
Every result (21)
SampledResult as publishedReads as
18 May 2026, 11:240.32 0.32 mg/l
11 Mar 2026, 11:210.089 0.089 mg/l
23 Feb 2026, 10:010.08 0.08 mg/l
18 Dec 2025, 12:020.13 0.13 mg/l
28 Nov 2025, 09:220.14 0.14 mg/l
3 Oct 2025, 13:400.13 0.13 mg/l
10 Sep 2025, 11:460.16 0.16 mg/l
7 Aug 2025, 10:000.16 0.16 mg/l
17 Jul 2025, 08:270.19 0.19 mg/l
5 Jun 2025, 13:360.18 0.18 mg/l
19 May 2025, 11:000.13 0.13 mg/l
16 Apr 2025, 11:080.074 0.074 mg/l
5 Mar 2025, 10:340.063 0.063 mg/l
26 Feb 2025, 11:300.23 0.23 mg/l
31 Jan 2025, 10:300.15 0.15 mg/l
28 Nov 2024, 14:530.14 0.14 mg/l
21 Oct 2024, 13:570.19 0.19 mg/l
17 Sep 2024, 14:240.24 0.24 mg/l
29 Aug 2024, 13:200.25 0.25 mg/l
16 Jul 2024, 09:440.46 0.46 mg/l
25 Jun 2024, 13:340.2 0.2 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

662 µS/cm

Sampled 18 May 2026, 4 months ago · 22 results banked

400500600700800µS/cm20242025202625 Jun 2024, 13:34: 702 µS/cm16 Jul 2024, 09:44: 610 µS/cm29 Aug 2024, 13:20: 714 µS/cm17 Sep 2024, 14:24: 666 µS/cm21 Oct 2024, 13:57: 481 µS/cm28 Nov 2024, 14:53: 527 µS/cm6 Dec 2024, 09:12: 454 µS/cm31 Jan 2025, 10:30: 568 µS/cm26 Feb 2025, 11:30: 603 µS/cm5 Mar 2025, 10:34: 669 µS/cm16 Apr 2025, 11:08: 684 µS/cm19 May 2025, 11:00: 693 µS/cm5 Jun 2025, 13:36: 674 µS/cm17 Jul 2025, 08:27: 685 µS/cm7 Aug 2025, 10:00: 669 µS/cm10 Sep 2025, 11:46: 672 µS/cm3 Oct 2025, 13:40: 685 µS/cm28 Nov 2025, 09:22: 694 µS/cm18 Dec 2025, 12:02: 522 µS/cm23 Feb 2026, 10:01: 553 µS/cm11 Mar 2026, 11:21: 611 µS/cm18 May 2026, 11:24: 662 µS/cm
Every result (22)
SampledResult as publishedReads as
18 May 2026, 11:24662 662 µS/cm
11 Mar 2026, 11:21611 611 µS/cm
23 Feb 2026, 10:01553 553 µS/cm
18 Dec 2025, 12:02522 522 µS/cm
28 Nov 2025, 09:22694 694 µS/cm
3 Oct 2025, 13:40685 685 µS/cm
10 Sep 2025, 11:46672 672 µS/cm
7 Aug 2025, 10:00669 669 µS/cm
17 Jul 2025, 08:27685 685 µS/cm
5 Jun 2025, 13:36674 674 µS/cm
19 May 2025, 11:00693 693 µS/cm
16 Apr 2025, 11:08684 684 µS/cm
5 Mar 2025, 10:34669 669 µS/cm
26 Feb 2025, 11:30603 603 µS/cm
31 Jan 2025, 10:30568 568 µS/cm
6 Dec 2024, 09:12454 454 µS/cm
28 Nov 2024, 14:53527 527 µS/cm
21 Oct 2024, 13:57481 481 µS/cm
17 Sep 2024, 14:24666 666 µS/cm
29 Aug 2024, 13:20714 714 µS/cm
16 Jul 2024, 09:44610 610 µS/cm
25 Jun 2024, 13:34702 702 µS/cm

Everything measured here

59 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 59 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 22 Jun 2024 – May 2026 98.3% 18 May 2026
Oxygen, Dissolved as O2 9924 River water 22 Jun 2024 – May 2026 10.8 mg/l 18 May 2026
Temperature of Water 0076 River water 22 Jun 2024 – May 2026 11 °C 18 May 2026
pH 0061 River water 22 Jun 2024 – May 2026 8.11 18 May 2026
Ammoniacal Nitrogen as N 0111 River water 22 Jun 2024 – May 2026 below 0.03 mg/l 18 May 2026
Nitrate as N 0117 River water 22 Jun 2024 – May 2026 11 mg/l 18 May 2026
Orthophosphate, reactive as P 0180 River water 21 Jun 2024 – May 2026 0.32 mg/l 18 May 2026
Conductivity at 25 C 0077 River water 22 Jun 2024 – May 2026 662 µS/cm 18 May 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
3-Perfluoroheptylpropanoic acid 2925 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 1 Nov 2024 – Nov 2024 below 0.004 µg/l 28 Nov 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 1 Nov 2024 – Nov 2024 below 0.005 µg/l 28 Nov 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 22 Jun 2024 – May 2026 230 mg/l 18 May 2026
Ammonia un-ionised as N 0119 River water 22 Jun 2024 – May 2026 below 0.00059 mg/l 18 May 2026
BOD : 5 Day ATU 0085 River water 20 Jun 2024 – May 2026 1.3 mg/l 18 May 2026
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
N-methylperfluorooctanesulfonamide 2975 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
Nitrite as N 0118 River water 22 Jun 2024 – May 2026 0.021 mg/l 18 May 2026
Nitrogen, Total Oxidised as N 0116 River water 22 Jun 2024 – May 2026 11 mg/l 18 May 2026
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorobutanesulfonic acid 2972 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
Perfluorobutanoic acid 2995 River water 1 Nov 2024 – Nov 2024 0.0021 µg/l 28 Nov 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorodecanesulfonic acid 2969 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
Perfluorodecanoic acid 8892 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
Perfluorododecane sulfonic acid 2968 River water 1 Nov 2024 – Nov 2024 below 0.005 µg/l 28 Nov 2024
Perfluorododecanoic acid 8894 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
Perfluoroheptanesulfonic acid 2967 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoroheptanoic acid 8889 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
Perfluorohexanesulfonamide 2965 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorohexanesulfonic acid (B) 2944 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorohexanesulfonic acid (L) 2964 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorohexanoic acid 8888 River water 1 Nov 2024 – Nov 2024 0.00083 µg/l 28 Nov 2024
Perfluorononanesulfonic acid 2963 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorononanoic acid 8891 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
Perfluorooctadecanoic acid 2962 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 2024
Perfluorooctanesulfonamide 2961 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoropentanesulfonic acid 2957 River water 1 Nov 2024 – Nov 2024 below 0.0005 µg/l 28 Nov 2024
Perfluoropentanoic acid 8887 River water 1 Nov 2024 – Nov 2024 below 0.001 µg/l 28 Nov 2024
Perfluorotetradecanoic acid 8895 River water 1 Nov 2024 – Nov 2024 below 0.006 µg/l 28 Nov 2024
Perfluorotridecanoic acid 2955 River water 1 Nov 2024 – Nov 2024 below 0.005 µg/l 28 Nov 2024
Perfluoroundecane sulfonic acid 2953 River water 1 Nov 2024 – Nov 2024 below 0.004 µg/l 28 Nov 2024
Perfluoroundecanoic acid 8893 River water 1 Nov 2024 – Nov 2024 below 0.002 µg/l 28 Nov 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.