River Exe at Tiverton New Bridge
EA name: RIVER EXE AT TIVERTON NEW BRIDGE
Environment Agency sampling point SW-70550172 · 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
- 23 Mar 2026, 10:377 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 26 Oct 2026 and had nothing newer.
- Samples banked
- 12 since 17 Jul 2025 Imported periods: 1 Oct 2023 – 26 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 295001, 113074As published, to the nearest 1 m. Open in a map
- River, by its own name
- Exe
- River, by the map
- River ExePlaced on the river its name gives, 16 m from the line.
- Next gauge downstream
- Tiverton On the River Exe · 3.3 km along the river
- Nearest gauge upstream
- Stoodleigh On the River Exe · 5.6 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (9 samples)
Monitoring (national agency policy) (3 samples)
Main measurements, river water
Water temperature
code 0076 · °C
8.6 °C
Sampled 23 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 10:37 | 8.6 | 8.6 °C |
| 26 Feb 2026, 10:53 | 10.1 | 10.1 °C |
| 10 Feb 2026, 11:54 | 9.2 | 9.2 °C |
| 19 Jan 2026, 13:28 | 8.1 | 8.1 °C |
| 11 Nov 2025, 10:35 | 10.9 | 10.9 °C |
| 20 Oct 2025, 13:14 | 12.6 | 12.6 °C |
| 9 Sep 2025, 11:04 | 14.4 | 14.4 °C |
| 15 Aug 2025, 10:42 | 18.9 | 18.9 °C |
| 17 Jul 2025, 10:00 | 18.7 | 18.7 °C |
pH
code 0061
7.76
Sampled 23 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 10:37 | 7.76 | 7.76 |
| 26 Feb 2026, 10:53 | 7.59 | 7.59 |
| 10 Feb 2026, 11:54 | 7.52 | 7.52 |
| 19 Jan 2026, 13:28 | 7.61 | 7.61 |
| 11 Nov 2025, 10:35 | 7.63 | 7.63 |
| 20 Oct 2025, 13:14 | 7.76 | 7.76 |
| 9 Sep 2025, 11:04 | 7.89 | 7.89 |
| 15 Aug 2025, 10:42 | 7.78 | 7.78 |
| 17 Jul 2025, 10:00 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 23 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Feb 2026, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jan 2026, 13:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Nov 2025, 10:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Oct 2025, 13:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Sep 2025, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Aug 2025, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 10:00 | <0.03 | below 0.03 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
122 µS/cm
Sampled 23 Mar 2026, 7 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 10:37 | 122 | 122 µS/cm |
| 26 Feb 2026, 10:53 | 114 | 114 µS/cm |
| 10 Feb 2026, 11:54 | 116 | 116 µS/cm |
| 19 Jan 2026, 13:28 | 131 | 131 µS/cm |
| 11 Nov 2025, 10:35 | 114 | 114 µS/cm |
| 20 Oct 2025, 13:14 | 122 | 122 µS/cm |
| 9 Sep 2025, 11:04 | 134 | 134 µS/cm |
| 15 Aug 2025, 10:42 | 136 | 136 µS/cm |
| 17 Jul 2025, 10:00 | 129 | 129 µS/cm |
Everything measured here
139 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 139 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Temperature of Water 0076 | River water | 9 | Jul 2025 – Mar 2026 | 8.6 °C 23 Mar 2026 |
| pH 0061 | River water | 9 | Jul 2025 – Mar 2026 | 7.76 23 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 9 | Jul 2025 – Mar 2026 | below 0.03 mg/l 23 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 9 | Jul 2025 – Mar 2026 | 122 µS/cm 23 Mar 2026 |
| (Perfluorohexanesulfonyl)[3-(trimethylazaniumyl)propyl]azanide 2890 | River water | 2 | Feb 2026 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 1,2,4-Trichlorobenzene 9051 | River water | 2 | Jul 2025 – Oct 2025 | below 0.01 µg/l 20 Oct 2025 |
| 1,2-Dichlorobenzene 9618 | River water | 2 | Jul 2025 – Oct 2025 | below 0.1 µg/l 20 Oct 2025 |
| 1,4-Dichlorobenzene 4049 | River water | 3 | Jul 2025 – Jan 2026 | below 1 µg/l 19 Jan 2026 |
| 10:2 Fluorotelomer sulfonic acid 2994 | River water | 2 | Feb 2026 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 2,4,5-Trichlorophenol 9818 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 2,4,6-Trichlorophenol 9819 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 2,4-Dichlorophenol 9816 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 2,4-Dimethylphenol :- {2,4-Xylenol} 3343 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 2,4-Dinitrotoluene :- {2,4-DNT} 9929 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 2,6-Dinitrotoluene :- {2,6-DNT} 9953 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 2-Chloronapthalene 5302 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 2-Chlorophenol 9814 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 2-Methylnaphthalene 5301 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 2-Methylphenol :- {o-Cresol} 5562 | River water | 2 | Jul 2025 – Oct 2025 | below 0.02 µg/l 20 Oct 2025 |
| 2-Nitrophenol 8661 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 2H-Perfluoro-2-decenoic acid 2888 | River water | 2 | Feb 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 3 | Jul 2025 – Mar 2026 | below 0.004 µg/l 23 Mar 2026 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 4-Bromophenyl phenyl ether 5297 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 4-Chloro-3-methylphenol :- {p-Chloro-m-cresol} 3342 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| 4-Chlorophenyl phenyl ether 5296 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 5:1:2 Fluorotelomer betaine 2887 | River water | 2 | Feb 2026 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 5:3 Fluorotelomer betaine 2886 | River water | 2 | Feb 2026 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| 6:2 Fluorotelomer phosphate diester 2986 | River water | 2 | Feb 2026 – Mar 2026 | below 0.004 µg/l 23 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide amine oxide (6:2 FTNO) (Capstone A) 2841 | River water | 2 | Feb 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 6:2 Fluorotelomer sulfonamide betaine 2985 | River water | 2 | Feb 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 6:2/8:2 Fluorotelomer phosphate diester 2884 | River water | 2 | Feb 2026 – Mar 2026 | below 0.01 µg/l 23 Mar 2026 |
| 6:6 Perfluorophosphinic acid 2883 | River water | 2 | Feb 2026 – Mar 2026 | below 0.004 µg/l 23 Mar 2026 |
| 6:8 Perfluorophosphinic acid 2882 | River water | 2 | Feb 2026 – Mar 2026 | below 0.01 µg/l 23 Mar 2026 |
| 8:2 Fluorotelomer phosphate diester 2880 | River water | 2 | Feb 2026 – Mar 2026 | below 0.004 µg/l 23 Mar 2026 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| 8:8 Perfluorophosphinic acid 2879 | River water | 1 | Feb 2026 – Feb 2026 | below 0.01 µg/l 26 Feb 2026 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Acenaphthene 7395 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Acenaphthylene 8311 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Anthracene 6753 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Antimony 6058 | River water | 9 | Jul 2025 – Mar 2026 | below 1 µg/l 23 Mar 2026 |
| Benzo(a)Anthracene 0772 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Benzo(a)Pyrene 6399 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Benzo(b)Fluoranthene 0731 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Benzo(g,h,i)Perylene 0714 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Benzo(k)Fluoranthene 0733 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Benzyl butyl phthalate 8162 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Bis(2-chloroethoxy)methane 5294 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Bis(2-chloroethyl)ether 5293 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| BOD : 5 Day ATU 0085 | River water | 9 | Jul 2025 – Mar 2026 | 1 mg/l 23 Mar 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 8 | Jul 2025 – Mar 2026 | 1.2 mg/l 23 Mar 2026 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 9 | Jul 2025 – Mar 2026 | below 10 mg/l 23 Mar 2026 |
| Chromium 3164 | River water | 9 | Jul 2025 – Mar 2026 | below 0.5 µg/l 23 Mar 2026 |
| Chromium, Dissolved 3409 | River water | 9 | Jul 2025 – Mar 2026 | below 0.5 µg/l 23 Mar 2026 |
| Chrysene 8310 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Copper 6452 | River water | 9 | Jul 2025 – Mar 2026 | below 1 µg/l 23 Mar 2026 |
| Copper, Dissolved 6450 | River water | 9 | Jul 2025 – Mar 2026 | below 1 µg/l 23 Mar 2026 |
| Detergents, Anionic 0461 | River water | 9 | Jul 2025 – Mar 2026 | below 0.05 mg/l 23 Mar 2026 |
| Detergents, Non-ionic 0463 | River water | 9 | Jul 2025 – Mar 2026 | below 0.0005 mg/l 23 Mar 2026 |
| Di(2-ethylhexyl) phthalate :- {DEHP} 6724 | River water | 3 | Jul 2025 – Jan 2026 | 0.28 µg/l 19 Jan 2026 |
| Di-n-octylphthalate 5236 | River water | 3 | Jul 2025 – Jan 2026 | below 5 µg/l 19 Jan 2026 |
| Dibenzo(a,h)Anthracene 8360 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Dibenzofuran 5291 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Dibutyl Phthalate 6720 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Diethyl Phthalate 7567 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Dimethyl phthalate 6865 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Fluoranthene 0736 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Fluorene 7864 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 1 | Jan 2026 – Jan 2026 | 1 text result 19 Jan 2026 |
| Hexachlorobenzene 0576 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Hexachlorobutadiene 6648 | River water | 2 | Jul 2025 – Oct 2025 | below 0.003 µg/l 20 Oct 2025 |
| Hexachloroethane 5234 | River water | 2 | Jul 2025 – Oct 2025 | below 0.1 µg/l 20 Oct 2025 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Hexafluoropropylene oxide trimer acid 2980 | River water | 1 | Mar 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Hydrocarbon Oils 1066 | River water | 9 | Jul 2025 – Mar 2026 | below 1 mg/l 23 Mar 2026 |
| Indeno(1,2,3-cd)pyrene 0746 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Iron 6051 | River water | 9 | Jul 2025 – Mar 2026 | 120 µg/l 23 Mar 2026 |
| Iron, Dissolved 6460 | River water | 9 | Jul 2025 – Mar 2026 | 55 µg/l 23 Mar 2026 |
| Isophorone 5289 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| LCMS Screen : Semi Quantitative 7299 | River water | 1 | Jan 2026 – Jan 2026 | 1 text result 19 Jan 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 3 | Jul 2025 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 3 | Jul 2025 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| N-nitrosodi-n-propylamine 5288 | River water | 2 | Jul 2025 – Oct 2025 | below 1 µg/l 20 Oct 2025 |
| Nickel 6462 | River water | 9 | Jul 2025 – Mar 2026 | below 1 µg/l 23 Mar 2026 |
| Nickel, Dissolved 3410 | River water | 9 | Jul 2025 – Mar 2026 | below 1 µg/l 23 Mar 2026 |
| Nitrobenzene 6661 | River water | 3 | Jul 2025 – Jan 2026 | below 1 µg/l 19 Jan 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 9 | Jul 2025 – Mar 2026 | 1.2 mg/l 23 Mar 2026 |
| Pentachlorophenol 1085 | River water | 3 | Jul 2025 – Jan 2026 | below 0.02 µg/l 19 Jan 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorobutanesulfonic acid 2972 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorobutanoic acid 2995 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorodecanesulfonic acid 2969 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorodecanoic acid 8892 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorododecane sulfonic acid 2968 | River water | 3 | Jul 2025 – Mar 2026 | below 0.005 µg/l 23 Mar 2026 |
| Perfluorododecanoic acid 8894 | River water | 3 | Jul 2025 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| Perfluoroheptanesulfonic acid 2967 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoroheptanoic acid 8889 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorohexane sulfonamido amine 2874 | River water | 2 | Feb 2026 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorohexanesulfonamide 2965 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorohexanoic acid 8888 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorononanesulfonic acid 2963 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorononanoic acid 8891 | River water | 2 | Feb 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorooctadecanoic acid 2962 | River water | 3 | Jul 2025 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| Perfluorooctanesulfonamide 2961 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 2 | Jul 2025 – Feb 2026 | below 0.0005 µg/l 26 Feb 2026 |
| Perfluorooctanesulfonic acid (total) 2958 | River water | 2 | Feb 2026 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorooctanoic acid 8890 | River water | 2 | Feb 2026 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoropentanesulfonic acid 2957 | River water | 3 | Jul 2025 – Mar 2026 | below 0.0005 µg/l 23 Mar 2026 |
| Perfluoropentanoic acid 8887 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Perfluorotetradecanoic acid 8895 | River water | 3 | Jul 2025 – Mar 2026 | below 0.006 µg/l 23 Mar 2026 |
| Perfluorotridecanoic acid 2955 | River water | 3 | Jul 2025 – Mar 2026 | below 0.002 µg/l 23 Mar 2026 |
| Perfluoroundecane sulfonic acid 2953 | River water | 3 | Jul 2025 – Mar 2026 | below 0.004 µg/l 23 Mar 2026 |
| Perfluoroundecanoic acid 8893 | River water | 3 | Jul 2025 – Mar 2026 | below 0.001 µg/l 23 Mar 2026 |
| Phenanthrene 9671 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Phenol 9522 | River water | 3 | Jul 2025 – Jan 2026 | 0.084 µg/l 19 Jan 2026 |
| Phosphorus, Total as P 0348 | River water | 9 | Jul 2025 – Mar 2026 | 0.019 mg/l 23 Mar 2026 |
| Pyrene 7325 | River water | 3 | Jul 2025 – Jan 2026 | below 0.01 µg/l 19 Jan 2026 |
| Solids, Suspended at 105 C 0135 | River water | 9 | Jul 2025 – Mar 2026 | below 3 mg/l 23 Mar 2026 |
| Sulphide as S 0167 | River water | 9 | Jul 2025 – Mar 2026 | below 0.02 mg/l 23 Mar 2026 |
| Zinc 6455 | River water | 9 | Jul 2025 – Mar 2026 | below 5 µg/l 23 Mar 2026 |
| Zinc, Dissolved 3408 | River water | 9 | Jul 2025 – Mar 2026 | below 5 µg/l 23 Mar 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.