Trebarwith Stream upstream the Old Millfloor
EA name: TREBARWITH STREAM U/S THE OLD MILLFLOOR
Environment Agency sampling point SW-82610140 · 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
- 17 May 2025, 13:5016 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
- 23 since 6 May 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 206479, 86330As published, to the nearest 1 m. Open in a map
- River, by its own name
- Trebarwith Stream
- River, by the map
- An unnamed streamPlaced by position alone (the only river line close by), 9 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Why it was sampled
- Planned investigation (local monitoring) (23 samples)
Main measurements, river water
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
18 per 100 ml
Sampled 17 May 2025, 16 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 May 2025, 13:50 | 18 | 18 per 100 ml |
| 2 May 2025, 13:35 | 36 | 36 per 100 ml |
| 16 Sep 2024, 12:13 | 580 | 580 per 100 ml |
| 12 Sep 2024, 15:30 | 360 | 360 per 100 ml |
| 2 Sep 2024, 12:02 | 36 | 36 per 100 ml |
| 29 Aug 2024, 12:19 | <10 | below 10 per 100 ml (not detected above this) |
| 22 Aug 2024, 12:20 | 63 | 63 per 100 ml |
| 13 Aug 2024, 11:13 | 36 | 36 per 100 ml |
| 6 Aug 2024, 11:24 | 130 | 130 per 100 ml |
| 2 Aug 2024, 12:28 | 72 | 72 per 100 ml |
| 26 Jul 2024, 15:12 | 190 | 190 per 100 ml |
| 22 Jul 2024, 11:01 | 90 | 90 per 100 ml |
| 18 Jul 2024, 11:06 | 45 | 45 per 100 ml |
| 12 Jul 2024, 11:24 | 81 | 81 per 100 ml |
| 6 Jul 2024, 12:05 | 18000 | 18000 per 100 ml |
| 28 Jun 2024, 10:40 | 45 | 45 per 100 ml |
| 18 Jun 2024, 12:15 | 54 | 54 per 100 ml |
| 14 Jun 2024, 10:37 | 18 | 18 per 100 ml |
| 3 Jun 2024, 12:59 | <10 | below 10 per 100 ml (not detected above this) |
| 29 May 2024, 13:03 | 99 | 99 per 100 ml |
| 26 May 2024, 11:45 | 110 | 110 per 100 ml |
| 21 May 2024, 11:39 | <10 | below 10 per 100 ml (not detected above this) |
| 6 May 2024, 12:10 | 310 | 310 per 100 ml |
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 |
|---|---|---|---|---|
| Escherichia coli : Confirmed : MF 2348 | River water | 23 | May 2024 – May 2025 | 18 per 100 ml 17 May 2025 |
| Bacteroides HF183 primer 5886 | River water | 1 | Jul 2024 – Jul 2024 | Present / 100ml 6 Jul 2024 |
| Bacteroidetes Marker : Human copy number 3820 | River water | 1 | Jul 2024 – Jul 2024 | 4 log (10) gene copies / 100ml 6 Jul 2024 |
| Bacteroidetes Marker : Ruminant 4906 | River water | 1 | Jul 2024 – Jul 2024 | Present 6 Jul 2024 |
| Bacteroidetes Marker : Ruminant copy number 3819 | River water | 1 | Jul 2024 – Jul 2024 | 7.1 log (10) gene copies / 100ml 6 Jul 2024 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 23 | May 2024 – May 2025 | below 10 colony forming units / 100ml 17 May 2025 |
| Microbial Source Tracking 4876 | River water | 1 | Jul 2024 – Jul 2024 | 1 text result 6 Jul 2024 |
| Mitochondrial Marker : Human 4869 | River water | 1 | Jul 2024 – Jul 2024 | Present 6 Jul 2024 |
| Mitochondrial Marker : Human copy number 3812 | River water | 1 | Jul 2024 – Jul 2024 | below 2 log (10) gene copies / 100ml 6 Jul 2024 |
| MST Filtration 4926 | River water | 23 | May 2024 – May 2025 | DNA Stored 17 May 2025 |
| Preparation: DNA 5923 | River water | 1 | Jul 2024 – Jul 2024 | Done 6 Jul 2024 |
| Volume of Sample Filtered 4865 | River water | 23 | May 2024 – May 2025 | 900 millilitre 17 May 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.