Tadburn Lake Romsey

EA name: TADBURN LAKE ROMSEY (also listed as “TADBURN LAKE AT ROMSEY BY-PASS”)
Environment Agency sampling point SO-G0004024 · 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 Mar 2026, 13:147 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 8 Oct 2026 and had nothing newer.
Samples banked
8 since 2 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy)
Where
National Grid 435327, 120875As published, to the nearest 1 m. Open in a map
River, by its own name
Tadburn Lake
River, by the map
Tadburn LakePlaced on the river its name gives, 3 m from the line.
Next gauge downstream
Longbridge On the River Test · 3.6 km along the river
Nearest gauge upstream
Romsey Botley Road On the Tadburn Lake · 1.0 km along the river
Why it was sampled
Monitoring (national agency policy) (8 samples)

Everything measured here

3 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 3 rows
DeterminandMaterialResults First – lastLatest result
Non Target Screening : Water 2876 River water 2 Jan 2025 – Mar 2026 1 text result 17 Mar 2026
Perfluorooctanoate anion 9274 River water 7 Oct 2023 – Jan 2025 0.0013 µg/l 7 Jan 2025
Perfluorooctylsulphonate anion 9276 River water 7 Oct 2023 – Jan 2025 0.0031 µg/l 7 Jan 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.