River Stour downstream of Gillingham sewage treatment works
EA name: RIVER STOUR D/S GILLINGHAM STW (also listed as “RIVER STOUR DOWNSTREAM GILLINGHAM STW”)
Environment Agency sampling point SW-50310187 · 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
- 20 Aug 2026, 11:3142 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 2 Oct 2023 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 380318, 125753As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stour
- River, by the map
- River StourPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Hammoon On the River Stour · 33 km along the river
- Nearest gauge upstream
- Gillingham Le Neubourg Way On the River Stour · 1.3 km along the riverColesbrook On the Shreen Water · 3.3 km along the river
- Why it was sampled
- Monitoring (national agency policy) (27 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
pH
code 0061
8.2
Sampled 14 Mar 2024, 2.5 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2024, 11:36 | 8.2 | 8.2 |
| 27 Feb 2024, 13:04 | 8.13 | 8.13 |
| 30 Jan 2024, 10:56 | 8.2 | 8.2 |
| 6 Dec 2023, 13:40 | 7.82 | 7.82 |
| 13 Nov 2023, 12:15 | 7.68 | 7.68 |
| 2 Oct 2023, 10:59 | 7.91 | 7.91 |
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
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| pH 0061 | River water | 6 | Oct 2023 – Mar 2024 | 8.2 14 Mar 2024 |
| Aluminium, Dissolved 6037 | River water | 33 | Oct 2023 – Aug 2026 | below 20 µg/l 20 Aug 2026 |
| Iron, Dissolved 6460 | River water | 6 | Oct 2023 – Mar 2024 | 54 µg/l 14 Mar 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.