Datchet Common Brook at Church Lane
EA name: DATCHET COMMON BRK AT CHURCH LN (also listed as “DATCHET COMMON BROOK AT CHURCH LANE”)
Environment Agency sampling point TH-PTHR0472 · 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
- 3 Apr 2025, 12:2918 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 30 Sep 2026 and had nothing newer.
- Samples banked
- 9 since 6 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (national agency policy)
- Where
- National Grid 499504, 181268As published, to the nearest 1 m. Open in a map
- River, by its own name
- Datchet Common Brook
- River, by the map
- Datchet Common BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Old Windsor Lock On the River Thames · 8.4 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Planned investigation (national agency policy) (9 samples)
8 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
29.4%
Sampled 6 Dec 2024, 22 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Dec 2024, 12:16 | 29.4 | 29.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
3.49 mg/l
Sampled 6 Dec 2024, 22 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Dec 2024, 12:16 | 3.49 | 3.49 mg/l |
Water temperature
code 0076 · °C
7.8 °C
Sampled 6 Dec 2024, 22 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Dec 2024, 12:16 | 7.8 | 7.8 °C |
pH
code 0061
7.45
Sampled 6 Dec 2024, 22 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Dec 2024, 12:16 | 7.45 | 7.45 |
Conductivity
at 25 °C · code 0077 · µS/cm
792 µS/cm
Sampled 6 Dec 2024, 22 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Dec 2024, 12:16 | 792 | 792 µS/cm |
Everything measured here
6 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 6 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 1 | Dec 2024 – Dec 2024 | 29.4% 6 Dec 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 1 | Dec 2024 – Dec 2024 | 3.49 mg/l 6 Dec 2024 |
| Temperature of Water 0076 | River water | 1 | Dec 2024 – Dec 2024 | 7.8 °C 6 Dec 2024 |
| pH 0061 | River water | 1 | Dec 2024 – Dec 2024 | 7.45 6 Dec 2024 |
| Conductivity at 25 C 0077 | River water | 1 | Dec 2024 – Dec 2024 | 792 µS/cm 6 Dec 2024 |
| No flow /No sample 7668 | River water | 8 | Jun 2024 – Apr 2025 | No flow/discharge at sampling point 3 Apr 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.