Trebarwith Stream at Mill House Car Park
EA name: TREBARWITH STM @ MILL HOUSE CAR PARK (also listed as “TREBARWITH STREAM AT MILL HOUSE CAR PARK”)
Environment Agency sampling point SW-82610106 · 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 Sep 2026, 13:3615 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 61 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 205794, 86417As 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), 0 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Why it was sampled
- Planned investigation (local monitoring) (60 samples)
Unplanned reactive monitoring (pollution incidents) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.9%
Sampled 17 Jul 2024, 2.2 years ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2024, 10:46 | 98.9 | 98.9% |
Water temperature
code 0076 · °C
13.06 °C
Sampled 17 Jul 2024, 2.2 years ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2024, 10:46 | 13.06 | 13.06 °C |
pH
code 0061
7.72
Sampled 17 Jul 2024, 2.2 years ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2024, 10:46 | 7.72 | 7.72 |
Conductivity
at 25 °C · code 0077 · µS/cm
224 µS/cm
Sampled 17 Jul 2024, 2.2 years ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jul 2024, 10:46 | 224 | 224 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
81 per 100 ml
Sampled 16 Sep 2026, 15 days ago · 60 results banked
Every result (60)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Sep 2026, 13:36 | 81 | 81 per 100 ml |
| 7 Sep 2026, 12:40 | 120 | 120 per 100 ml |
| 3 Sep 2026, 12:00 | 160 | 160 per 100 ml |
| 28 Aug 2026, 11:15 | 81 | 81 per 100 ml |
| 19 Aug 2026, 12:20 | 660 | 660 per 100 ml |
| 10 Aug 2026, 10:36 | 81 | 81 per 100 ml |
| 3 Aug 2026, 11:49 | 27 | 27 per 100 ml |
| 28 Jul 2026, 12:20 | 90 | 90 per 100 ml |
| 23 Jul 2026, 11:02 | 27 | 27 per 100 ml |
| 16 Jul 2026, 11:47 | 210 | 210 per 100 ml |
| 10 Jul 2026, 11:06 | 36 | 36 per 100 ml |
| 3 Jul 2026, 12:03 | 18 | 18 per 100 ml |
| 25 Jun 2026, 12:43 | 99 | 99 per 100 ml |
| 16 Jun 2026, 14:39 | 160 | 160 per 100 ml |
| 13 Jun 2026, 10:48 | 63 | 63 per 100 ml |
| 30 May 2026, 12:26 | 27 | 27 per 100 ml |
| 24 May 2026, 10:32 | 18 | 18 per 100 ml |
| 19 May 2026, 11:06 | 1500 | 1500 per 100 ml |
| 18 Sep 2025, 11:32 | 260 | 260 per 100 ml |
| 7 Sep 2025, 11:24 | 3700 | 3700 per 100 ml |
| 3 Sep 2025, 11:50 | 220 | 220 per 100 ml |
| 26 Aug 2025, 13:24 | 560 | 560 per 100 ml |
| 22 Aug 2025, 14:06 | 18 | 18 per 100 ml |
| 16 Aug 2025, 15:35 | 13000 | 13000 per 100 ml |
| 4 Aug 2025, 12:00 | 2500 | 2500 per 100 ml |
| 29 Jul 2025, 11:47 | 220 | 220 per 100 ml |
| 23 Jul 2025, 11:45 | 730 | 730 per 100 ml |
| 18 Jul 2025, 11:20 | 280 | 280 per 100 ml |
| 8 Jul 2025, 11:21 | 110 | 110 per 100 ml |
| 4 Jul 2025, 12:25 | 81 | 81 per 100 ml |
| 24 Jun 2025, 11:41 | 130 | 130 per 100 ml |
| 18 Jun 2025, 15:30 | 240 | 240 per 100 ml |
| 13 Jun 2025, 13:25 | 440 | 440 per 100 ml |
| 2 Jun 2025, 11:13 | 1000 | 1000 per 100 ml |
| 27 May 2025, 12:55 | 4500 | 4500 per 100 ml |
| 21 May 2025, 10:32 | 130 | 130 per 100 ml |
| 17 May 2025, 13:38 | 27 | 27 per 100 ml |
| 2 May 2025, 13:24 | 45 | 45 per 100 ml |
| 16 Sep 2024, 12:00 | 340 | 340 per 100 ml |
| 12 Sep 2024, 15:20 | 230 | 230 per 100 ml |
| 2 Sep 2024, 11:55 | 36 | 36 per 100 ml |
| 29 Aug 2024, 12:11 | 18 | 18 per 100 ml |
| 22 Aug 2024, 12:10 | 200 | 200 per 100 ml |
| 13 Aug 2024, 11:00 | 140 | 140 per 100 ml |
| 6 Aug 2024, 11:14 | 350 | 350 per 100 ml |
| 2 Aug 2024, 12:20 | 54 | 54 per 100 ml |
| 26 Jul 2024, 15:04 | 210 | 210 per 100 ml |
| 22 Jul 2024, 11:39 | 130 | 130 per 100 ml |
| 18 Jul 2024, 11:15 | 140 | 140 per 100 ml |
| 17 Jul 2024, 10:46 | 200 | 200 per 100 ml |
| 12 Jul 2024, 11:13 | 270 | 270 per 100 ml |
| 6 Jul 2024, 11:55 | 24000 | 24000 per 100 ml |
| 28 Jun 2024, 10:49 | 81 | 81 per 100 ml |
| 18 Jun 2024, 12:05 | 27 | 27 per 100 ml |
| 14 Jun 2024, 10:26 | 45 | 45 per 100 ml |
| 3 Jun 2024, 12:51 | 120 | 120 per 100 ml |
| 29 May 2024, 12:56 | 99 | 99 per 100 ml |
| 26 May 2024, 11:37 | 330 | 330 per 100 ml |
| 21 May 2024, 11:28 | 27 | 27 per 100 ml |
| 6 May 2024, 12:00 | 90 | 90 per 100 ml |
Everything measured here
16 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 16 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 1 | Jul 2024 – Jul 2024 | 98.9% 17 Jul 2024 |
| Temperature of Water 0076 | River water | 1 | Jul 2024 – Jul 2024 | 13.06 °C 17 Jul 2024 |
| pH 0061 | River water | 1 | Jul 2024 – Jul 2024 | 7.72 17 Jul 2024 |
| Conductivity at 25 C 0077 | River water | 1 | Jul 2024 – Jul 2024 | 224 µS/cm 17 Jul 2024 |
| Escherichia coli : Confirmed : MF 2348 | River water | 60 | May 2024 – Sep 2026 | 81 per 100 ml 16 Sep 2026 |
| 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 | 3.8 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 | 60 | May 2024 – Sep 2026 | 72 colony forming units / 100ml 16 Sep 2026 |
| 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 | Not found 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 | 61 | May 2024 – Sep 2026 | DNA Stored 16 Sep 2026 |
| Preparation: DNA 5923 | River water | 1 | Jul 2024 – Jul 2024 | Done 6 Jul 2024 |
| Volume of Sample Filtered 4865 | River water | 61 | May 2024 – Sep 2026 | 920 millilitre 16 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.