River Madford downstream of Dunkeswell sewage treatment works
EA name: RIVER MADFORD DS DUNKESWELL STW
Environment Agency sampling point SW-70534660 · 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
- 16 Jul 2026, 12:183 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 12 since 4 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 315207, 108634As published, to the nearest 1 m. Open in a map
- River, by its own name
- Madford
- River, by the map
- Madford RiverPlaced on the river its name gives, 9 m from the line.
- Next gauge downstream
- Culmstock On the River Culm · 12 km along the river
- Why it was sampled
- Monitoring (national agency policy) (10 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
pH
code 0061
7.31
Sampled 16 Jul 2026, 3 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Jul 2026, 12:18 | 7.31 | 7.31 |
| 7 May 2026, 14:00 | 7.3 | 7.3 |
| 19 Jan 2026, 13:59 | 7.38 | 7.38 |
| 23 Oct 2025, 11:24 | 7.25 | 7.25 |
| 4 Jul 2025, 10:58 | 7.24 | 7.24 |
| 10 Apr 2025, 12:36 | 7.41 | 7.41 |
| 14 Jan 2025, 12:55 | 7.38 | 7.38 |
| 3 Dec 2024, 15:30 | 7.17 | 7.17 |
| 23 Jul 2024, 11:16 | 7.13 | 7.13 |
| 9 Apr 2024, 09:04 | 7.4 | 7.4 |
| 12 Jan 2024, 10:29 | 7.2 | 7.2 |
| 4 Oct 2023, 08:35 | 7.3 | 7.3 |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| pH 0061 | River water | 12 | Oct 2023 – Jul 2026 | 7.31 16 Jul 2026 |
| Calcium 0241 | River water | 12 | Oct 2023 – Jul 2026 | 15 mg/l 16 Jul 2026 |
| Calcium, Dissolved 0239 | River water | 12 | Oct 2023 – Jul 2026 | 14 mg/l 16 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 12 | Oct 2023 – Jul 2026 | 1.8 mg/l 16 Jul 2026 |
| Copper : BLM Bioavailable 4821 | River water | 12 | Oct 2023 – Jul 2026 | 0.08 µg/l 16 Jul 2026 |
| Copper, Dissolved 6450 | River water | 12 | Oct 2023 – Jul 2026 | 0.58 µg/l 16 Jul 2026 |
| Hardness, Total as CaCO3 0158 | River water | 12 | Oct 2023 – Jul 2026 | 50.2 mg/l 16 Jul 2026 |
| Iron, Dissolved 6460 | River water | 2 | Oct 2023 – Jan 2024 | 160 µg/l 12 Jan 2024 |
| Magnesium 0237 | River water | 12 | Oct 2023 – Jul 2026 | 3.1 mg/l 16 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Oct 2023 – Jan 2024 | 2.7 mg/l 12 Jan 2024 |
| Zinc 6455 | River water | 12 | Oct 2023 – Jul 2026 | below 5 µg/l 16 Jul 2026 |
| Zinc, Dissolved 3408 | River water | 12 | Oct 2023 – Jul 2026 | 3.9 µg/l 16 Jul 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.