River Gwash Footbridge upstream of Belmesthorpe
EA name: R.GWASH FT.BR.U/S BELMESTHORPE
Environment Agency sampling point AN-GWSH300B · 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 Sep 2026, 10:2252 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 2 since 30 Apr 2026 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy) · results completed 5 Sep 2026
- Where
- National Grid 504200, 310400As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Gwash
- River, by the map
- River GwashPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Tallington On the River Welland · 10 km along the riverBeside BELMESTHORPE GS GSM: too close to say above or below.
- Nearest gauge upstream
- RYHALL PS 0.4 km along the river
- Why it was sampled
- Monitoring (national agency policy) (2 samples)
Results here were completed a median of 2 days after the sample was taken (2 to 2 days, 1 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.4%
Sampled 3 Sep 2026, 52 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:22 | 95.4 | 95.4% |
| 30 Apr 2026, 09:40 | 88.5 | 88.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.29 mg/l
Sampled 3 Sep 2026, 52 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:22 | 9.29 | 9.29 mg/l |
| 30 Apr 2026, 09:40 | 9.69 | 9.69 mg/l |
Water temperature
code 0076 · °C
16.5 °C
Sampled 3 Sep 2026, 52 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:22 | 16.5 | 16.5 °C |
| 30 Apr 2026, 09:40 | 11.2 | 11.2 °C |
pH
code 0061
8.14
Sampled 3 Sep 2026, 52 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:22 | 8.14 | 8.14 |
| 30 Apr 2026, 09:40 | 8.06 | 8.06 |
Conductivity
at 25 °C · code 0077 · µS/cm
793 µS/cm
Sampled 3 Sep 2026, 52 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:22 | 793 | 793 µS/cm |
| 30 Apr 2026, 09:40 | 365 | 365 µS/cm |
Everything measured here
5 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 5 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 2 | Apr 2026 – Sep 2026 | 95.4% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 2 | Apr 2026 – Sep 2026 | 9.29 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 2 | Apr 2026 – Sep 2026 | 16.5 °C 3 Sep 2026 |
| pH 0061 | River water | 2 | Apr 2026 – Sep 2026 | 8.14 3 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 2 | Apr 2026 – Sep 2026 | 793 µS/cm 3 Sep 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.