River Colne Newbridge West Bergholt

EA name: R.COLNE NEWBRIDGE WEST BERGHOLT
Environment Agency sampling point AN-CL0230 · 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
17 Sep 2026, 11:5414 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
25 since 6 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) · results completed 19 Sep 2026
Where
National Grid 595609, 226672As published, to the nearest 1 m. Open in a map
River, by its own name
Colne
River, by the map
River ColnePlaced on the river its name gives, 3 m from the line.
Next gauge downstream
Lexden On the River Colne · 1.0 km along the river
Nearest gauge upstream
Earls Colne On the River Colne · 15 km along the riverEARLS COLNE FGS 15 km along the river
Why it was sampled
Planned investigation (local monitoring) (12 samples)
Monitoring (national agency policy) (10 samples)
Planned investigation (national agency policy) (3 samples)

Results here were completed a median of 7 days after the sample was taken (2 to 319 days, 10 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

58.7%

Sampled 17 Sep 2026, 14 days ago · 18 results banked

406080100120%2024202520263 Apr 2024, 09:42: 92.9%1 May 2024, 12:33: 101.1%14 Jun 2024, 10:20: 78%1 Jul 2024, 12:49: 89.2%15 Aug 2024, 14:59: 94.1%5 Sep 2024, 12:33: 76.3%1 Oct 2024, 14:39: 79%7 Nov 2024, 11:56: 80.1%3 Dec 2024, 11:26: 88.9%2 Jan 2025, 14:42: 92.7%4 Feb 2025, 08:41: 98.9%28 Mar 2025, 14:02: 103.1%27 Apr 2026, 14:38: 101%28 May 2026, 15:23: 96%19 Jun 2026, 13:45: 77.8%13 Jul 2026, 09:23: 60.4%10 Aug 2026, 09:45: 66.1%17 Sep 2026, 11:54: 58.7%
Every result (18)
SampledResult as publishedReads as
17 Sep 2026, 11:5458.7 58.7%
10 Aug 2026, 09:4566.1 66.1%
13 Jul 2026, 09:2360.4 60.4%
19 Jun 2026, 13:4577.8 77.8%
28 May 2026, 15:2396 96%
27 Apr 2026, 14:38101 101%
28 Mar 2025, 14:02103.1 103.1%
4 Feb 2025, 08:4198.9 98.9%
2 Jan 2025, 14:4292.7 92.7%
3 Dec 2024, 11:2688.9 88.9%
7 Nov 2024, 11:5680.1 80.1%
1 Oct 2024, 14:3979 79%
5 Sep 2024, 12:3376.3 76.3%
15 Aug 2024, 14:5994.1 94.1%
1 Jul 2024, 12:4989.2 89.2%
14 Jun 2024, 10:2078 78%
1 May 2024, 12:33101.1 101.1%
3 Apr 2024, 09:4292.9 92.9%

Dissolved oxygen

as O2 · code 9924 · mg/l

5.78 mg/l

Sampled 17 Sep 2026, 14 days ago · 18 results banked

468101214mg/l2024202520263 Apr 2024, 09:42: 10.2 mg/l1 May 2024, 12:33: 10.5 mg/l14 Jun 2024, 10:20: 8.02 mg/l1 Jul 2024, 12:49: 8.56 mg/l15 Aug 2024, 14:59: 8.37 mg/l5 Sep 2024, 12:33: 7.35 mg/l1 Oct 2024, 14:39: 8.3 mg/l7 Nov 2024, 11:56: 8.67 mg/l3 Dec 2024, 11:26: 10.6 mg/l2 Jan 2025, 14:42: 11.4 mg/l4 Feb 2025, 08:41: 12.9 mg/l28 Mar 2025, 14:02: 11.2 mg/l27 Apr 2026, 14:38: 10.3 mg/l28 May 2026, 15:23: 8.52 mg/l19 Jun 2026, 13:45: 7.01 mg/l13 Jul 2026, 09:23: 5.58 mg/l10 Aug 2026, 09:45: 6.37 mg/l17 Sep 2026, 11:54: 5.78 mg/l
Every result (18)
SampledResult as publishedReads as
17 Sep 2026, 11:545.78 5.78 mg/l
10 Aug 2026, 09:456.37 6.37 mg/l
13 Jul 2026, 09:235.58 5.58 mg/l
19 Jun 2026, 13:457.01 7.01 mg/l
28 May 2026, 15:238.52 8.52 mg/l
27 Apr 2026, 14:3810.3 10.3 mg/l
28 Mar 2025, 14:0211.2 11.2 mg/l
4 Feb 2025, 08:4112.9 12.9 mg/l
2 Jan 2025, 14:4211.4 11.4 mg/l
3 Dec 2024, 11:2610.6 10.6 mg/l
7 Nov 2024, 11:568.67 8.67 mg/l
1 Oct 2024, 14:398.3 8.3 mg/l
5 Sep 2024, 12:337.35 7.35 mg/l
15 Aug 2024, 14:598.37 8.37 mg/l
1 Jul 2024, 12:498.56 8.56 mg/l
14 Jun 2024, 10:208.02 8.02 mg/l
1 May 2024, 12:3310.5 10.5 mg/l
3 Apr 2024, 09:4210.2 10.2 mg/l

Water temperature

code 0076 · °C

16 °C

Sampled 17 Sep 2026, 14 days ago · 18 results banked

0510152025°C2024202520263 Apr 2024, 09:42: 10.9 °C1 May 2024, 12:33: 13.7 °C14 Jun 2024, 10:20: 14 °C1 Jul 2024, 12:49: 17.2 °C15 Aug 2024, 14:59: 21 °C5 Sep 2024, 12:33: 17 °C1 Oct 2024, 14:39: 13 °C7 Nov 2024, 11:56: 11.7 °C3 Dec 2024, 11:26: 7.8 °C2 Jan 2025, 14:42: 6.5 °C4 Feb 2025, 08:41: 4 °C28 Mar 2025, 14:02: 11.5 °C27 Apr 2026, 14:38: 14.4 °C28 May 2026, 15:23: 21.1 °C19 Jun 2026, 13:45: 20.3 °C13 Jul 2026, 09:23: 19.1 °C10 Aug 2026, 09:45: 17 °C17 Sep 2026, 11:54: 16 °C
Every result (18)
SampledResult as publishedReads as
17 Sep 2026, 11:5416 16 °C
10 Aug 2026, 09:4517 17 °C
13 Jul 2026, 09:2319.1 19.1 °C
19 Jun 2026, 13:4520.3 20.3 °C
28 May 2026, 15:2321.1 21.1 °C
27 Apr 2026, 14:3814.4 14.4 °C
28 Mar 2025, 14:0211.5 11.5 °C
4 Feb 2025, 08:414 4 °C
2 Jan 2025, 14:426.5 6.5 °C
3 Dec 2024, 11:267.8 7.8 °C
7 Nov 2024, 11:5611.7 11.7 °C
1 Oct 2024, 14:3913 13 °C
5 Sep 2024, 12:3317 17 °C
15 Aug 2024, 14:5921 21 °C
1 Jul 2024, 12:4917.2 17.2 °C
14 Jun 2024, 10:2014 14 °C
1 May 2024, 12:3313.7 13.7 °C
3 Apr 2024, 09:4210.9 10.9 °C

pH

code 0061

7.93

Sampled 17 Sep 2026, 14 days ago · 18 results banked

7.257.57.7588.258.52024202520263 Apr 2024, 09:42: 8.21 May 2024, 12:33: 8.1614 Jun 2024, 10:20: 7.941 Jul 2024, 12:49: 8.0215 Aug 2024, 14:59: 7.95 Sep 2024, 12:33: 7.721 Oct 2024, 14:39: 7.867 Nov 2024, 11:56: 7.873 Dec 2024, 11:26: 8.022 Jan 2025, 14:42: 8.474 Feb 2025, 08:41: 8.2228 Mar 2025, 14:02: 8.2427 Apr 2026, 14:38: 8.1228 May 2026, 15:23: 7.8819 Jun 2026, 13:45: 7.6913 Jul 2026, 09:23: 7.7110 Aug 2026, 09:45: 7.4817 Sep 2026, 11:54: 7.93
Every result (18)
SampledResult as publishedReads as
17 Sep 2026, 11:547.93 7.93
10 Aug 2026, 09:457.48 7.48
13 Jul 2026, 09:237.71 7.71
19 Jun 2026, 13:457.69 7.69
28 May 2026, 15:237.88 7.88
27 Apr 2026, 14:388.12 8.12
28 Mar 2025, 14:028.24 8.24
4 Feb 2025, 08:418.22 8.22
2 Jan 2025, 14:428.47 8.47
3 Dec 2024, 11:268.02 8.02
7 Nov 2024, 11:567.87 7.87
1 Oct 2024, 14:397.86 7.86
5 Sep 2024, 12:337.72 7.72
15 Aug 2024, 14:597.9 7.9
1 Jul 2024, 12:498.02 8.02
14 Jun 2024, 10:207.94 7.94
1 May 2024, 12:338.16 8.16
3 Apr 2024, 09:428.2 8.2

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

below 0.03 mg/l (not detected above this)

Sampled 17 Sep 2026, 14 days ago · 6 results banked

0.020.040.060.080.1mg/l20242025202627 Apr 2026, 14:38: 0.084 mg/l28 May 2026, 15:23: 0.039 mg/l19 Jun 2026, 13:45: below 0.03 mg/l (not detected above this)13 Jul 2026, 09:23: 0.033 mg/l10 Aug 2026, 09:45: below 0.03 mg/l (not detected above this)17 Sep 2026, 11:54: below 0.03 mg/l (not detected above this)
Every result (6)
SampledResult as publishedReads as
17 Sep 2026, 11:54<0.03 below 0.03 mg/l (not detected above this)
10 Aug 2026, 09:45<0.03 below 0.03 mg/l (not detected above this)
13 Jul 2026, 09:230.033 0.033 mg/l
19 Jun 2026, 13:45<0.03 below 0.03 mg/l (not detected above this)
28 May 2026, 15:230.039 0.039 mg/l
27 Apr 2026, 14:380.084 0.084 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

6.39 mg/l

Sampled 17 Sep 2026, 14 days ago · 6 results banked

45678mg/l20242025202627 Apr 2026, 14:38: 7.12 mg/l28 May 2026, 15:23: 4.95 mg/l19 Jun 2026, 13:45: 5.17 mg/l13 Jul 2026, 09:23: 4.49 mg/l10 Aug 2026, 09:45: 4.89 mg/l17 Sep 2026, 11:54: 6.39 mg/l
Every result (6)
SampledResult as publishedReads as
17 Sep 2026, 11:546.39 6.39 mg/l
10 Aug 2026, 09:454.89 4.89 mg/l
13 Jul 2026, 09:234.49 4.49 mg/l
19 Jun 2026, 13:455.17 5.17 mg/l
28 May 2026, 15:234.95 4.95 mg/l
27 Apr 2026, 14:387.12 7.12 mg/l

Phosphate

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

0.16 mg/l

Sampled 17 Sep 2026, 14 days ago · 6 results banked

0.10.150.20.25mg/l20242025202627 Apr 2026, 14:38: 0.11 mg/l28 May 2026, 15:23: 0.2 mg/l19 Jun 2026, 13:45: 0.18 mg/l13 Jul 2026, 09:23: 0.23 mg/l10 Aug 2026, 09:45: 0.17 mg/l17 Sep 2026, 11:54: 0.16 mg/l
Every result (6)
SampledResult as publishedReads as
17 Sep 2026, 11:540.16 0.16 mg/l
10 Aug 2026, 09:450.17 0.17 mg/l
13 Jul 2026, 09:230.23 0.23 mg/l
19 Jun 2026, 13:450.18 0.18 mg/l
28 May 2026, 15:230.2 0.2 mg/l
27 Apr 2026, 14:380.11 0.11 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

998 µS/cm

Sampled 17 Sep 2026, 14 days ago · 18 results banked

70080090010001100µS/cm2024202520263 Apr 2024, 09:42: 769 µS/cm1 May 2024, 12:33: 709 µS/cm14 Jun 2024, 10:20: 826 µS/cm1 Jul 2024, 12:49: 853 µS/cm15 Aug 2024, 14:59: 886 µS/cm5 Sep 2024, 12:33: 879 µS/cm1 Oct 2024, 14:39: 705 µS/cm7 Nov 2024, 11:56: 886 µS/cm3 Dec 2024, 11:26: 792 µS/cm2 Jan 2025, 14:42: 1037 µS/cm4 Feb 2025, 08:41: 776 µS/cm28 Mar 2025, 14:02: 825 µS/cm27 Apr 2026, 14:38: 847 µS/cm28 May 2026, 15:23: 889 µS/cm19 Jun 2026, 13:45: 841 µS/cm13 Jul 2026, 09:23: 972 µS/cm10 Aug 2026, 09:45: 1021 µS/cm17 Sep 2026, 11:54: 998 µS/cm
Every result (18)
SampledResult as publishedReads as
17 Sep 2026, 11:54998 998 µS/cm
10 Aug 2026, 09:451021 1021 µS/cm
13 Jul 2026, 09:23972 972 µS/cm
19 Jun 2026, 13:45841 841 µS/cm
28 May 2026, 15:23889 889 µS/cm
27 Apr 2026, 14:38847 847 µS/cm
28 Mar 2025, 14:02825 825 µS/cm
4 Feb 2025, 08:41776 776 µS/cm
2 Jan 2025, 14:421037 1037 µS/cm
3 Dec 2024, 11:26792 792 µS/cm
7 Nov 2024, 11:56886 886 µS/cm
1 Oct 2024, 14:39705 705 µS/cm
5 Sep 2024, 12:33879 879 µS/cm
15 Aug 2024, 14:59886 886 µS/cm
1 Jul 2024, 12:49853 853 µS/cm
14 Jun 2024, 10:20826 826 µS/cm
1 May 2024, 12:33709 709 µS/cm
3 Apr 2024, 09:42769 769 µS/cm

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

1300 per 100 ml

Sampled 6 Dec 2023, 2.8 years ago · 3 results banked

250500750100012501500per 100 ml202420252026no sample published after Dec 20236 Oct 2023, 12:02: 1300 per 100 ml9 Nov 2023, 13:44: 450 per 100 ml6 Dec 2023, 13:41: 1300 per 100 ml
Every result (3)
SampledResult as publishedReads as
6 Dec 2023, 13:411300 1300 per 100 ml
9 Nov 2023, 13:44450 450 per 100 ml
6 Oct 2023, 12:021300 1300 per 100 ml

Everything measured here

70 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 70 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 18 Apr 2024 – Sep 2026 58.7% 17 Sep 2026
Oxygen, Dissolved as O2 9924 River water 18 Apr 2024 – Sep 2026 5.78 mg/l 17 Sep 2026
Temperature of Water 0076 River water 18 Apr 2024 – Sep 2026 16 °C 17 Sep 2026
pH 0061 River water 18 Apr 2024 – Sep 2026 7.93 17 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 6 Apr 2026 – Sep 2026 below 0.03 mg/l 17 Sep 2026
Nitrate as N 0117 River water 6 Apr 2026 – Sep 2026 6.39 mg/l 17 Sep 2026
Orthophosphate, reactive as P 0180 River water 6 Apr 2026 – Sep 2026 0.16 mg/l 17 Sep 2026
Conductivity at 25 C 0077 River water 18 Apr 2024 – Sep 2026 998 µS/cm 17 Sep 2026
Escherichia coli : Confirmed : MF 2348 River water 3 Oct 2023 – Dec 2023 1300 per 100 ml 6 Dec 2023
Alkalinity to pH 4.5 as CaCO3 0162 River water 6 Apr 2026 – Sep 2026 200 mg/l 17 Sep 2026
Ammonia un-ionised as N 0119 River water 6 Apr 2026 – Sep 2026 below 0.00072 mg/l 17 Sep 2026
Enterococci: Intestinal: Confirmed: MF 3723 River water 3 Oct 2023 – Dec 2023 500 colony forming units / 100ml 6 Dec 2023
Enterococci: Intestinal: Presumptive: MF 3722 River water 3 Oct 2023 – Dec 2023 550 colony forming units / 100ml 6 Dec 2023
Nitrite as N 0118 River water 6 Apr 2026 – Sep 2026 0.011 mg/l 17 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 6 Apr 2026 – Sep 2026 6.4 mg/l 17 Sep 2026
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor): WW 2918 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.007 microgram per kilogram 26 Sep 2025
1H,1H,2H,2H-perfluorooctane sulfonic acid : wet wt 2998 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.4 microgram per kilogram 26 Sep 2025
2-(N-Ethylperfluorooctanesulfonamido)acetic acid - branched 2864 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.01 microgram per kilogram 26 Sep 2025
2-(N-Ethylperfluorooctanesulfonamido)acetic acid - linear 2863 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.02 microgram per kilogram 26 Sep 2025
2-(N-Ethylperfluorooctanesulfonamido)acetic acid: wet wt 2917 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.1 microgram per kilogram 26 Sep 2025
2-(N-Methylperfluorooctanesulfonamido)acetic acid - branched 2866 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.005 microgram per kilogram 26 Sep 2025
2-(N-Methylperfluorooctanesulfonamido)acetic acid - linear 2865 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
2-(N-Methylperfluorooctanesulfonamido)acetic acid: wet wt 2916 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
2H,2H,3H,3H-Perfluorooctanoic acid: wet wt 2915 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.06 microgram per kilogram 26 Sep 2025
3-Perfluoroheptylpropanoic acid: wet wt 2913 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.04 microgram per kilogram 26 Sep 2025
3:3 Fluorotelomer carboxylic acid: wet wt 2914 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.06 microgram per kilogram 26 Sep 2025
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) : wet wt 2912 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.02 microgram per kilogram 26 Sep 2025
4:2 Fluorotelomer sulfonic acid: wet wt 2911 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.041 microgram per kilogram 26 Sep 2025
6:6 Perfluorophosphinic acid: wet wt 2910 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.02 microgram per kilogram 26 Sep 2025
6:8 Perfluorophosphinic acid: wet wt 2909 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.02 microgram per kilogram 26 Sep 2025
8:2 Fluorotelomer sulfonic acid: wet wt 2908 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.03 microgram per kilogram 26 Sep 2025
8:8 Perfluorophosphinic acid: wet wt 2907 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.06 microgram per kilogram 26 Sep 2025
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (F-53B Major): WW 2906 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.008 microgram per kilogram 26 Sep 2025
Anthracene : Wet Wt 8406 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Benzo(a)Pyrene : Wet Wt 8414 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Benzo(b)Fluoranthene : Wet Wt 7223 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Benzo(g,h,i)Perylene : Wet Wt 7225 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Benzo(k)Fluoranthene : Wet Wt 8431 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Dry Matter : % 9905 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 33% 26 Sep 2025
Fluoranthene : Wet Wt 7261 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 0.75 microgram per kilogram 26 Sep 2025
Hexafluoropropylene oxide dimer acid (Gen X): wet wt 2905 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.05 microgram per kilogram 26 Sep 2025
Indeno(1,2,3-cd)pyrene : Wet Wt 0747 Any shellfish (mollusc & crustacean) - whole animal 3 Sep 2025 – Sep 2025 below 0.5 microgram per kilogram 26 Sep 2025
Lipids : Total : Wet Wt 8680 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.85% 26 Sep 2025
Perfluoro(perfluoroethyl)cyclohexanesulfonic acid: wet wt 2904 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.008 microgram per kilogram 26 Sep 2025
Perfluorobutane sulfonic acid : wet wt 3037 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.008 microgram per kilogram 26 Sep 2025
Perfluorobutanoic acid : wet wt 3036 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.06 microgram per kilogram 26 Sep 2025
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) : wet wt 2903 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.17 microgram per kilogram 26 Sep 2025
Perfluorodecane sulphonic acid : wet wt 3035 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.04 microgram per kilogram 26 Sep 2025
Perfluorodecanoic acid : wet wt 3034 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.3 microgram per kilogram 26 Sep 2025
Perfluorododecanoic acid : wet wt 3033 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.56 microgram per kilogram 26 Sep 2025
Perfluoroheptanesulphonic acid : wet wt 3032 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.023 microgram per kilogram 26 Sep 2025
Perfluoroheptanoic acid : wet wt 3031 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.05 microgram per kilogram 26 Sep 2025
Perfluorohexanesulfonamide: wet wt 2902 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.3 microgram per kilogram 26 Sep 2025
Perfluorohexanesulphonic acid - branched 2860 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.3 microgram per kilogram 26 Sep 2025
Perfluorohexanesulphonic acid - linear 2859 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.84 microgram per kilogram 26 Sep 2025
Perfluorohexanesulphonic acid : wet wt 3029 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 1.1 microgram per kilogram 26 Sep 2025
Perfluorohexanoic acid : wet wt 3016 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.01 microgram per kilogram 26 Sep 2025
Perfluorononanesulfonic acid: wet wt 2901 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.03 microgram per kilogram 26 Sep 2025
Perfluorononanoic acid : wet wt 3015 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.11 microgram per kilogram 26 Sep 2025
Perfluorooctane sulphonamide : wet wt 3014 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.03 microgram per kilogram 26 Sep 2025
Perfluorooctanesulphanoate - branched 2862 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.088 microgram per kilogram 26 Sep 2025
Perfluorooctanesulphanoate - linear 2861 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 1.8 microgram per kilogram 26 Sep 2025
Perfluorooctanoic acid : Wet Wt 3376 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.34 microgram per kilogram 26 Sep 2025
Perfluorooctylsulphonate anion : Wet Wt 3375 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 1.9 microgram per kilogram 26 Sep 2025
Perfluoropentane sulphonic acid : wet wt 3012 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 below 0.02 microgram per kilogram 26 Sep 2025
Perfluoropentanoic acid : wet wt 3011 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.039 microgram per kilogram 26 Sep 2025
Perfluorotetradecanoic acid : wet wt 3006 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.41 microgram per kilogram 26 Sep 2025
Perfluorotridecanoic acid : wet wt 3005 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.21 microgram per kilogram 26 Sep 2025
Perfluoroundecanoic acid : wet wt 3003 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 0.12 microgram per kilogram 26 Sep 2025
Sample Preparation 8394 Any shellfish (mollusc & crustacean) - whole animal 4 Sep 2025 – Sep 2025 1 text result 26 Sep 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.