By Brook Fosse

EA name: BY BROOK FOSSE (also listed as “FOSSE BRIDGE”)
Environment Agency sampling point SW-Z4170201 · 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
18 Jun 2024, 10:002.3 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 8 Oct 2026 and had nothing newer.
Samples banked
1 since 18 Jun 2024 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Planned investigation (local monitoring)
Where
National Grid 383604, 178852As published, to the nearest 1 m. Open in a map
River, by its own name
By Brook
River, by the map
By BrookPlaced on the river its name gives, 4 m from the line.
Next gauge downstream
Middlehill On the By Brook · 19 km along the river
Why it was sampled
Planned investigation (local monitoring) (1 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

90.7%

Sampled 18 Jun 2024, 2.3 years ago · 1 result banked

80859095100105%202420252026no sample published after Jun 202418 Jun 2024, 10:00: 90.7%
Every result (1)
SampledResult as publishedReads as
18 Jun 2024, 10:0090.7 90.7%

Water temperature

code 0076 · °C

11.7 °C

Sampled 18 Jun 2024, 2.3 years ago · 1 result banked

1011121314°C202420252026no sample published after Jun 202418 Jun 2024, 10:00: 11.7 °C
Every result (1)
SampledResult as publishedReads as
18 Jun 2024, 10:0011.7 11.7 °C

pH

code 0061

7.48

Sampled 18 Jun 2024, 2.3 years ago · 1 result banked

6789202420252026no sample published after Jun 202418 Jun 2024, 10:00: 7.48
Every result (1)
SampledResult as publishedReads as
18 Jun 2024, 10:007.48 7.48

Conductivity

at 25 °C · code 0077 · µS/cm

673 µS/cm

Sampled 18 Jun 2024, 2.3 years ago · 1 result banked

600650700750µS/cm202420252026no sample published after Jun 202418 Jun 2024, 10:00: 673 µS/cm
Every result (1)
SampledResult as publishedReads as
18 Jun 2024, 10:00673 673 µS/cm

Everything measured here

9 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 9 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 1 Jun 2024 – Jun 2024 90.7% 18 Jun 2024
Temperature of Water 0076 River water 1 Jun 2024 – Jun 2024 11.7 °C 18 Jun 2024
pH 0061 River water 1 Jun 2024 – Jun 2024 7.48 18 Jun 2024
Conductivity at 25 C 0077 River water 1 Jun 2024 – Jun 2024 673 µS/cm 18 Jun 2024
Crayfish plague (Aphanomyces astaci) DNA: Present/Not found 3095 River water 1 Jun 2024 – Jun 2024 Not found 18 Jun 2024
National Grid Reference : Whole : Field report 7434 River water 1 Jun 2024 – Jun 2024 1 unitless value 18 Jun 2024
Preparation: DNA 5923 River water 1 Jun 2024 – Jun 2024 Done 18 Jun 2024
Signal crayfish (Pacifasticus leniusculus) DNA: Present/Not found 3077 River water 1 Jun 2024 – Jun 2024 Not found 18 Jun 2024
White-clawed crayfish (Austropotamobius pallipes) DNA: Present/NF 3069 River water 1 Jun 2024 – Jun 2024 Not found 18 Jun 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.