Downstream of B2215

EA name: D/S B2215 (also listed as “RSN1825 D/S B2215”)
Environment Agency sampling point TH-RSN1825 · 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
11 Jan 2024, 12:362.7 years 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
1 since 11 Jan 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 503214, 154352As published, to the nearest 1 m. Open in a map
River, by its own name
Its name does not give one
River, by the map
West Clandon StreamPlaced by position alone (the only river line close by), 4 m from the line.
Next gauge downstream
Brooklands On the River Wey · 12 km along the river
Why it was sampled
Monitoring (national agency policy) (1 samples)

Everything measured here

43 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 43 rows
DeterminandMaterialResults First – lastLatest result
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
3-Perfluoroheptylpropanoic acid 2925 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 1 Jan 2024 – Jan 2024 below 0.004 µg/l 11 Jan 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 1 Jan 2024 – Jan 2024 below 0.005 µg/l 11 Jan 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
N-methylperfluorooctanesulfonamide 2975 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorobutanesulfonic acid 2972 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorodecanesulfonic acid 2969 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
Perfluorodecanoic acid 8892 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
Perfluorododecane sulfonic acid 2968 River water 1 Jan 2024 – Jan 2024 below 0.005 µg/l 11 Jan 2024
Perfluorododecanoic acid 8894 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
Perfluoroheptanesulfonic acid 2967 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluoroheptanoic acid 8889 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
Perfluorohexanesulfonamide 2965 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorohexanesulfonic acid (B) 2944 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorohexanesulfonic acid (L) 2964 River water 1 Jan 2024 – Jan 2024 0.00056 µg/l 11 Jan 2024
Perfluorohexanoic acid 8888 River water 1 Jan 2024 – Jan 2024 0.00077 µg/l 11 Jan 2024
Perfluorononanesulfonic acid 2963 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorooctadecanoic acid 2962 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 2024
Perfluorooctanesulfonamide 2961 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluorooctanoic acid 8890 River water 1 Jan 2024 – Jan 2024 0.0011 µg/l 11 Jan 2024
Perfluoropentanesulfonic acid 2957 River water 1 Jan 2024 – Jan 2024 below 0.0005 µg/l 11 Jan 2024
Perfluoropentanoic acid 8887 River water 1 Jan 2024 – Jan 2024 below 0.001 µg/l 11 Jan 2024
Perfluorotetradecanoic acid 8895 River water 1 Jan 2024 – Jan 2024 below 0.006 µg/l 11 Jan 2024
Perfluorotridecanoic acid 2955 River water 1 Jan 2024 – Jan 2024 below 0.005 µg/l 11 Jan 2024
Perfluoroundecane sulfonic acid 2953 River water 1 Jan 2024 – Jan 2024 below 0.004 µg/l 11 Jan 2024
Perfluoroundecanoic acid 8893 River water 1 Jan 2024 – Jan 2024 below 0.002 µg/l 11 Jan 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.