Swale at Thornton Bridge - Brafferton

EA name: SWALE AT THORNTON BRIDGE - BRAFFERTON
Environment Agency sampling point NE-49900177 · 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
7 Mar 2025, 09:0819 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 16 Oct 2026 and had nothing newer.
Samples banked
18 since 17 Oct 2023 Imported periods: 1 Oct 2023 – 16 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy)
Where
National Grid 443292, 471411As published, to the nearest 1 m. Open in a map
River, by its own name
Swale
River, by the map
River SwalePlaced on the river its name gives, 2 m from the line.
Next gauge downstream
Myton-On-Swale On the River Swale · 7.0 km along the river
Nearest gauge upstream
Bat Bridge On the Cundall Beck · 3.4 km along the riverCrakehill On the River Swale · 3.6 km along the river
Why it was sampled
Monitoring (national agency policy) (18 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

99.1%

Sampled 7 Mar 2025, 19 months ago · 18 results banked

9092949698100%202420252026no sample published after Mar 202517 Oct 2023, 11:02: 98.1%24 Nov 2023, 13:50: 94.2%13 Dec 2023, 11:12: 91.5%16 Jan 2024, 11:39: 96.2%19 Feb 2024, 09:41: 96.5%22 Mar 2024, 12:17: 97%16 Apr 2024, 12:42: 95.6%17 May 2024, 10:28: 93.7%21 Jun 2024, 11:44: 94.6%19 Jul 2024, 08:58: 95.8%21 Aug 2024, 09:42: 92.8%26 Sep 2024, 10:04: 96.4%18 Oct 2024, 11:45: 92.5%20 Nov 2024, 13:05: 93.8%4 Dec 2024, 11:28: 94.5%22 Jan 2025, 12:45: 97.5%5 Feb 2025, 14:28: 96.9%7 Mar 2025, 09:08: 99.1%
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:0899.1 99.1%
5 Feb 2025, 14:2896.9 96.9%
22 Jan 2025, 12:4597.5 97.5%
4 Dec 2024, 11:2894.5 94.5%
20 Nov 2024, 13:0593.8 93.8%
18 Oct 2024, 11:4592.5 92.5%
26 Sep 2024, 10:0496.4 96.4%
21 Aug 2024, 09:4292.8 92.8%
19 Jul 2024, 08:5895.8 95.8%
21 Jun 2024, 11:4494.6 94.6%
17 May 2024, 10:2893.7 93.7%
16 Apr 2024, 12:4295.6 95.6%
22 Mar 2024, 12:1797 97%
19 Feb 2024, 09:4196.5 96.5%
16 Jan 2024, 11:3996.2 96.2%
13 Dec 2023, 11:1291.5 91.5%
24 Nov 2023, 13:5094.2 94.2%
17 Oct 2023, 11:0298.1 98.1%

Dissolved oxygen

as O2 · code 9924 · mg/l

11.7 mg/l

Sampled 7 Mar 2025, 19 months ago · 18 results banked

8101214mg/l202420252026no sample published after Mar 202517 Oct 2023, 11:02: 11.7 mg/l24 Nov 2023, 13:50: 11 mg/l13 Dec 2023, 11:12: 11.3 mg/l16 Jan 2024, 11:39: 12.9 mg/l19 Feb 2024, 09:41: 11.2 mg/l22 Mar 2024, 12:17: 11.2 mg/l16 Apr 2024, 12:42: 11.1 mg/l17 May 2024, 10:28: 9.47 mg/l21 Jun 2024, 11:44: 9.14 mg/l19 Jul 2024, 08:58: 8.81 mg/l21 Aug 2024, 09:42: 9.35 mg/l26 Sep 2024, 10:04: 10.3 mg/l18 Oct 2024, 11:45: 10.1 mg/l20 Nov 2024, 13:05: 12.2 mg/l4 Dec 2024, 11:28: 11.8 mg/l22 Jan 2025, 12:45: 12.5 mg/l5 Feb 2025, 14:28: 12 mg/l7 Mar 2025, 09:08: 11.7 mg/l
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:0811.7 11.7 mg/l
5 Feb 2025, 14:2812 12 mg/l
22 Jan 2025, 12:4512.5 12.5 mg/l
4 Dec 2024, 11:2811.8 11.8 mg/l
20 Nov 2024, 13:0512.2 12.2 mg/l
18 Oct 2024, 11:4510.1 10.1 mg/l
26 Sep 2024, 10:0410.3 10.3 mg/l
21 Aug 2024, 09:429.35 9.35 mg/l
19 Jul 2024, 08:588.81 8.81 mg/l
21 Jun 2024, 11:449.14 9.14 mg/l
17 May 2024, 10:289.47 9.47 mg/l
16 Apr 2024, 12:4211.1 11.1 mg/l
22 Mar 2024, 12:1711.2 11.2 mg/l
19 Feb 2024, 09:4111.2 11.2 mg/l
16 Jan 2024, 11:3912.9 12.9 mg/l
13 Dec 2023, 11:1211.3 11.3 mg/l
24 Nov 2023, 13:5011 11 mg/l
17 Oct 2023, 11:0211.7 11.7 mg/l

Water temperature

code 0076 · °C

7.9 °C

Sampled 7 Mar 2025, 19 months ago · 18 results banked

05101520°C202420252026no sample published after Mar 202517 Oct 2023, 11:02: 7.8 °C24 Nov 2023, 13:50: 8.6 °C13 Dec 2023, 11:12: 6.2 °C16 Jan 2024, 11:39: 3.1 °C19 Feb 2024, 09:41: 8.9 °C22 Mar 2024, 12:17: 9.1 °C16 Apr 2024, 12:42: 8.8 °C17 May 2024, 10:28: 14.8 °C21 Jun 2024, 11:44: 16.9 °C19 Jul 2024, 08:58: 19.3 °C21 Aug 2024, 09:42: 14.9 °C26 Sep 2024, 10:04: 12.2 °C18 Oct 2024, 11:45: 11.5 °C20 Nov 2024, 13:05: 4.3 °C4 Dec 2024, 11:28: 5.9 °C22 Jan 2025, 12:45: 4.8 °C5 Feb 2025, 14:28: 6.3 °C7 Mar 2025, 09:08: 7.9 °C
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:087.9 7.9 °C
5 Feb 2025, 14:286.3 6.3 °C
22 Jan 2025, 12:454.8 4.8 °C
4 Dec 2024, 11:285.9 5.9 °C
20 Nov 2024, 13:054.3 4.3 °C
18 Oct 2024, 11:4511.5 11.5 °C
26 Sep 2024, 10:0412.2 12.2 °C
21 Aug 2024, 09:4214.9 14.9 °C
19 Jul 2024, 08:5819.3 19.3 °C
21 Jun 2024, 11:4416.9 16.9 °C
17 May 2024, 10:2814.8 14.8 °C
16 Apr 2024, 12:428.8 8.8 °C
22 Mar 2024, 12:179.1 9.1 °C
19 Feb 2024, 09:418.9 8.9 °C
16 Jan 2024, 11:393.1 3.1 °C
13 Dec 2023, 11:126.2 6.2 °C
24 Nov 2023, 13:508.6 8.6 °C
17 Oct 2023, 11:027.8 7.8 °C

pH

code 0061

8.2

Sampled 7 Mar 2025, 19 months ago · 18 results banked

7.67.888.28.4202420252026no sample published after Mar 202517 Oct 2023, 11:02: 8.0324 Nov 2023, 13:50: 8.0813 Dec 2023, 11:12: 7.6916 Jan 2024, 11:39: 8.1519 Feb 2024, 09:41: 7.8222 Mar 2024, 12:17: 8.0716 Apr 2024, 12:42: 7.8917 May 2024, 10:28: 8.1321 Jun 2024, 11:44: 8.0619 Jul 2024, 08:58: 7.8921 Aug 2024, 09:42: 8.0326 Sep 2024, 10:04: 7.8618 Oct 2024, 11:45: 7.9720 Nov 2024, 13:05: 8.254 Dec 2024, 11:28: 8.1122 Jan 2025, 12:45: 8.095 Feb 2025, 14:28: 8.187 Mar 2025, 09:08: 8.2
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:088.2 8.2
5 Feb 2025, 14:288.18 8.18
22 Jan 2025, 12:458.09 8.09
4 Dec 2024, 11:288.11 8.11
20 Nov 2024, 13:058.25 8.25
18 Oct 2024, 11:457.97 7.97
26 Sep 2024, 10:047.86 7.86
21 Aug 2024, 09:428.03 8.03
19 Jul 2024, 08:587.89 7.89
21 Jun 2024, 11:448.06 8.06
17 May 2024, 10:288.13 8.13
16 Apr 2024, 12:427.89 7.89
22 Mar 2024, 12:178.07 8.07
19 Feb 2024, 09:417.82 7.82
16 Jan 2024, 11:398.15 8.15
13 Dec 2023, 11:127.69 7.69
24 Nov 2023, 13:508.08 8.08
17 Oct 2023, 11:028.03 8.03

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.058 mg/l

Sampled 7 Mar 2025, 19 months ago · 18 results banked

0.020.040.060.080.1mg/l202420252026no sample published after Mar 202517 Oct 2023, 11:02: below 0.03 mg/l (not detected above this)24 Nov 2023, 13:50: 0.037 mg/l13 Dec 2023, 11:12: 0.072 mg/l16 Jan 2024, 11:39: 0.084 mg/l19 Feb 2024, 09:41: 0.056 mg/l22 Mar 2024, 12:17: 0.051 mg/l16 Apr 2024, 12:42: 0.06 mg/l17 May 2024, 10:28: 0.056 mg/l21 Jun 2024, 11:44: below 0.03 mg/l (not detected above this)19 Jul 2024, 08:58: 0.032 mg/l21 Aug 2024, 09:42: below 0.03 mg/l (not detected above this)26 Sep 2024, 10:04: 0.1 mg/l18 Oct 2024, 11:45: below 0.03 mg/l (not detected above this)20 Nov 2024, 13:05: below 0.03 mg/l (not detected above this)4 Dec 2024, 11:28: 0.035 mg/l22 Jan 2025, 12:45: 0.062 mg/l5 Feb 2025, 14:28: 0.047 mg/l7 Mar 2025, 09:08: 0.058 mg/l
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:080.058 0.058 mg/l
5 Feb 2025, 14:280.047 0.047 mg/l
22 Jan 2025, 12:450.062 0.062 mg/l
4 Dec 2024, 11:280.035 0.035 mg/l
20 Nov 2024, 13:05<0.03 below 0.03 mg/l (not detected above this)
18 Oct 2024, 11:45<0.03 below 0.03 mg/l (not detected above this)
26 Sep 2024, 10:040.1 0.1 mg/l
21 Aug 2024, 09:42<0.03 below 0.03 mg/l (not detected above this)
19 Jul 2024, 08:580.032 0.032 mg/l
21 Jun 2024, 11:44<0.03 below 0.03 mg/l (not detected above this)
17 May 2024, 10:280.056 0.056 mg/l
16 Apr 2024, 12:420.06 0.06 mg/l
22 Mar 2024, 12:170.051 0.051 mg/l
19 Feb 2024, 09:410.056 0.056 mg/l
16 Jan 2024, 11:390.084 0.084 mg/l
13 Dec 2023, 11:120.072 0.072 mg/l
24 Nov 2023, 13:500.037 0.037 mg/l
17 Oct 2023, 11:02<0.03 below 0.03 mg/l (not detected above this)

Nitrate

as nitrogen (N) · code 0117 · mg/l

3.68 mg/l

Sampled 7 Mar 2025, 19 months ago · 17 results banked

12345mg/l202420252026no sample published after Mar 202517 Oct 2023, 11:02: 2.5 mg/l24 Nov 2023, 13:50: 3.88 mg/l13 Dec 2023, 11:12: 3.98 mg/l16 Jan 2024, 11:39: 4.48 mg/l19 Feb 2024, 09:41: 3.68 mg/l22 Mar 2024, 12:17: 2.68 mg/l16 Apr 2024, 12:42: 1.99 mg/l17 May 2024, 10:28: 2.78 mg/l21 Jun 2024, 11:44: 3.08 mg/l19 Jul 2024, 08:58: 1.99 mg/l21 Aug 2024, 09:42: 2.89 mg/l26 Sep 2024, 10:04: 1.79 mg/l18 Oct 2024, 11:45: 1.1 mg/l20 Nov 2024, 13:05: 3.28 mg/l22 Jan 2025, 12:45: 4.08 mg/l5 Feb 2025, 14:28: 4.38 mg/l7 Mar 2025, 09:08: 3.68 mg/l
Every result (17)
SampledResult as publishedReads as
7 Mar 2025, 09:083.68 3.68 mg/l
5 Feb 2025, 14:284.38 4.38 mg/l
22 Jan 2025, 12:454.08 4.08 mg/l
20 Nov 2024, 13:053.28 3.28 mg/l
18 Oct 2024, 11:451.1 1.1 mg/l
26 Sep 2024, 10:041.79 1.79 mg/l
21 Aug 2024, 09:422.89 2.89 mg/l
19 Jul 2024, 08:581.99 1.99 mg/l
21 Jun 2024, 11:443.08 3.08 mg/l
17 May 2024, 10:282.78 2.78 mg/l
16 Apr 2024, 12:421.99 1.99 mg/l
22 Mar 2024, 12:172.68 2.68 mg/l
19 Feb 2024, 09:413.68 3.68 mg/l
16 Jan 2024, 11:394.48 4.48 mg/l
13 Dec 2023, 11:123.98 3.98 mg/l
24 Nov 2023, 13:503.88 3.88 mg/l
17 Oct 2023, 11:022.5 2.5 mg/l

Phosphate

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

0.046 mg/l

Sampled 7 Mar 2025, 19 months ago · 18 results banked

0.020.040.060.080.1mg/l202420252026no sample published after Mar 202517 Oct 2023, 11:02: 0.069 mg/l24 Nov 2023, 13:50: 0.063 mg/l13 Dec 2023, 11:12: 0.056 mg/l16 Jan 2024, 11:39: 0.05 mg/l19 Feb 2024, 09:41: 0.042 mg/l22 Mar 2024, 12:17: 0.04 mg/l16 Apr 2024, 12:42: 0.026 mg/l17 May 2024, 10:28: 0.049 mg/l21 Jun 2024, 11:44: 0.07 mg/l19 Jul 2024, 08:58: 0.066 mg/l21 Aug 2024, 09:42: 0.081 mg/l26 Sep 2024, 10:04: 0.084 mg/l18 Oct 2024, 11:45: 0.04 mg/l20 Nov 2024, 13:05: 0.029 mg/l4 Dec 2024, 11:28: 0.055 mg/l22 Jan 2025, 12:45: 0.048 mg/l5 Feb 2025, 14:28: 0.047 mg/l7 Mar 2025, 09:08: 0.046 mg/l
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:080.046 0.046 mg/l
5 Feb 2025, 14:280.047 0.047 mg/l
22 Jan 2025, 12:450.048 0.048 mg/l
4 Dec 2024, 11:280.055 0.055 mg/l
20 Nov 2024, 13:050.029 0.029 mg/l
18 Oct 2024, 11:450.04 0.04 mg/l
26 Sep 2024, 10:040.084 0.084 mg/l
21 Aug 2024, 09:420.081 0.081 mg/l
19 Jul 2024, 08:580.066 0.066 mg/l
21 Jun 2024, 11:440.07 0.07 mg/l
17 May 2024, 10:280.049 0.049 mg/l
16 Apr 2024, 12:420.026 0.026 mg/l
22 Mar 2024, 12:170.04 0.04 mg/l
19 Feb 2024, 09:410.042 0.042 mg/l
16 Jan 2024, 11:390.05 0.05 mg/l
13 Dec 2023, 11:120.056 0.056 mg/l
24 Nov 2023, 13:500.063 0.063 mg/l
17 Oct 2023, 11:020.069 0.069 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

574 µS/cm

Sampled 7 Mar 2025, 19 months ago · 18 results banked

0200400600µS/cm202420252026no sample published after Mar 202517 Oct 2023, 11:02: 487 µS/cm24 Nov 2023, 13:50: 527 µS/cm13 Dec 2023, 11:12: 431 µS/cm16 Jan 2024, 11:39: 592 µS/cm19 Feb 2024, 09:41: 469 µS/cm22 Mar 2024, 12:17: 460 µS/cm16 Apr 2024, 12:42: 274 µS/cm17 May 2024, 10:28: 499 µS/cm21 Jun 2024, 11:44: 521 µS/cm19 Jul 2024, 08:58: 417 µS/cm21 Aug 2024, 09:42: 559 µS/cm26 Sep 2024, 10:04: 279 µS/cm18 Oct 2024, 11:45: 167 µS/cm20 Nov 2024, 13:05: 594 µS/cm4 Dec 2024, 11:28: 443 µS/cm22 Jan 2025, 12:45: 591 µS/cm5 Feb 2025, 14:28: 592 µS/cm7 Mar 2025, 09:08: 574 µS/cm
Every result (18)
SampledResult as publishedReads as
7 Mar 2025, 09:08574 574 µS/cm
5 Feb 2025, 14:28592 592 µS/cm
22 Jan 2025, 12:45591 591 µS/cm
4 Dec 2024, 11:28443 443 µS/cm
20 Nov 2024, 13:05594 594 µS/cm
18 Oct 2024, 11:45167 167 µS/cm
26 Sep 2024, 10:04279 279 µS/cm
21 Aug 2024, 09:42559 559 µS/cm
19 Jul 2024, 08:58417 417 µS/cm
21 Jun 2024, 11:44521 521 µS/cm
17 May 2024, 10:28499 499 µS/cm
16 Apr 2024, 12:42274 274 µS/cm
22 Mar 2024, 12:17460 460 µS/cm
19 Feb 2024, 09:41469 469 µS/cm
16 Jan 2024, 11:39592 592 µS/cm
13 Dec 2023, 11:12431 431 µS/cm
24 Nov 2023, 13:50527 527 µS/cm
17 Oct 2023, 11:02487 487 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 99.1% 7 Mar 2025
Oxygen, Dissolved as O2 9924 River water 18 Oct 2023 – Mar 2025 11.7 mg/l 7 Mar 2025
Temperature of Water 0076 River water 18 Oct 2023 – Mar 2025 7.9 °C 7 Mar 2025
pH 0061 River water 18 Oct 2023 – Mar 2025 8.2 7 Mar 2025
Ammoniacal Nitrogen as N 0111 River water 18 Oct 2023 – Mar 2025 0.058 mg/l 7 Mar 2025
Nitrate as N 0117 River water 17 Oct 2023 – Mar 2025 3.68 mg/l 7 Mar 2025
Orthophosphate, reactive as P 0180 River water 18 Oct 2023 – Mar 2025 0.046 mg/l 7 Mar 2025
Conductivity at 25 C 0077 River water 18 Oct 2023 – Mar 2025 574 µS/cm 7 Mar 2025
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
3-Perfluoroheptylpropanoic acid 2925 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 3 May 2024 – Sep 2024 below 0.004 µg/l 26 Sep 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 3 May 2024 – Sep 2024 below 0.005 µg/l 26 Sep 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 3 May 2024 – Sep 2024 0.055 µg/l 26 Sep 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 18 Oct 2023 – Mar 2025 200 mg/l 7 Mar 2025
Ammonia un-ionised as N 0119 River water 18 Oct 2023 – Mar 2025 0.00091 mg/l 7 Mar 2025
BOD : 5 Day ATU 0085 River water 14 Feb 2024 – Mar 2025 1.6 mg/l 7 Mar 2025
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
N-methylperfluorooctanesulfonamide 2975 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
Nitrite as N 0118 River water 18 Oct 2023 – Mar 2025 0.02 mg/l 7 Mar 2025
Nitrogen, Total Oxidised as N 0116 River water 17 Oct 2023 – Mar 2025 3.7 mg/l 7 Mar 2025
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorobutanesulfonic acid 2972 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
Perfluorobutanoic acid 2995 River water 2 Aug 2024 – Sep 2024 0.0038 µg/l 26 Sep 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorodecanesulfonic acid 2969 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
Perfluorodecanoic acid 8892 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
Perfluorododecane sulfonic acid 2968 River water 3 May 2024 – Sep 2024 below 0.005 µg/l 26 Sep 2024
Perfluorododecanoic acid 8894 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
Perfluoroheptanesulfonic acid 2967 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoroheptanoic acid 8889 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
Perfluorohexanesulfonamide 2965 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorohexanesulfonic acid (B) 2944 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorohexanesulfonic acid (L) 2964 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorohexanoic acid 8888 River water 3 May 2024 – Sep 2024 0.0012 µg/l 26 Sep 2024
Perfluorononanesulfonic acid 2963 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorononanoic acid 8891 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
Perfluorooctadecanoic acid 2962 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 Sep 2024
Perfluorooctanesulfonamide 2961 River water 3 May 2024 – Sep 2024 below 0.001 µg/l 26 Sep 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 3 May 2024 – Sep 2024 0.00072 µg/l 26 Sep 2024
Perfluorooctanoic acid 8890 River water 3 May 2024 – Sep 2024 0.0017 µg/l 26 Sep 2024
Perfluoropentanesulfonic acid 2957 River water 3 May 2024 – Sep 2024 below 0.0005 µg/l 26 Sep 2024
Perfluoropentanoic acid 8887 River water 3 May 2024 – Sep 2024 0.0017 µg/l 26 Sep 2024
Perfluorotetradecanoic acid 8895 River water 3 May 2024 – Sep 2024 below 0.006 µg/l 26 Sep 2024
Perfluorotridecanoic acid 2955 River water 3 May 2024 – Sep 2024 below 0.005 µg/l 26 Sep 2024
Perfluoroundecane sulfonic acid 2953 River water 3 May 2024 – Sep 2024 below 0.004 µg/l 26 Sep 2024
Perfluoroundecanoic acid 8893 River water 3 May 2024 – Sep 2024 below 0.002 µg/l 26 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.