Portreath Stream at Beach
EA name: PORTREATH STREAM AT BEACH (also listed as “PORTREATH BEACH - STREAM A (BEACH SURVEY)”)
Environment Agency sampling point SW-82310901 · 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
- 8 Sep 2026, 10:1523 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 24 since 4 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 165500, 45300As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Portreath Stream
- River, by the map
- Portreath StreamPlaced on the river its name gives, 58 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Why it was sampled
- Planned investigation (local monitoring) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
105.8%
Sampled 4 Jun 2026, 4 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Jun 2026, 13:40 | 105.8 | 105.8% |
Water temperature
code 0076 · °C
14.4 °C
Sampled 4 Jun 2026, 4 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Jun 2026, 13:40 | 14.4 | 14.4 °C |
pH
code 0061
7.9
Sampled 8 Sep 2026, 23 days ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 10:15 | 7.9 | 7.9 |
| 4 Jun 2026, 13:40 | 8.4 | 8.4 |
Conductivity
at 25 °C · code 0077 · µS/cm
447 µS/cm
Sampled 4 Jun 2026, 4 months ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Jun 2026, 13:40 | 447 | 447 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
37000 per 100 ml
Sampled 8 Sep 2026, 23 days ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 10:15 | 37000 | 37000 per 100 ml |
| 4 Jun 2026, 13:40 | 3900 | 3900 per 100 ml |
| 4 May 2025, 11:55 | 140 | 140 per 100 ml |
| 18 Sep 2024, 14:24 | 640 | 640 per 100 ml |
| 13 Sep 2024, 11:05 | 1000 | 1000 per 100 ml |
| 5 Sep 2024, 10:15 | 1600 | 1600 per 100 ml |
| 31 Aug 2024, 11:49 | 1500 | 1500 per 100 ml |
| 19 Aug 2024, 10:25 | 680 | 680 per 100 ml |
| 16 Aug 2024, 10:45 | 770 | 770 per 100 ml |
| 9 Aug 2024, 10:27 | 2000 | 2000 per 100 ml |
| 4 Aug 2024, 12:05 | 430 | 430 per 100 ml |
| 24 Jul 2024, 11:28 | 510 | 510 per 100 ml |
| 17 Jul 2024, 11:06 | 390 | 390 per 100 ml |
| 9 Jul 2024, 10:27 | 840 | 840 per 100 ml |
| 5 Jul 2024, 11:16 | 1700 | 1700 per 100 ml |
| 27 Jun 2024, 10:01 | 440 | 440 per 100 ml |
| 20 Jun 2024, 10:49 | 870 | 870 per 100 ml |
| 12 Jun 2024, 14:10 | 140 | 140 per 100 ml |
| 5 Jun 2024, 11:55 | 300 | 300 per 100 ml |
| 30 May 2024, 13:15 | 1100 | 1100 per 100 ml |
| 24 May 2024, 12:13 | 1300 | 1300 per 100 ml |
| 22 May 2024, 12:29 | 470 | 470 per 100 ml |
| 20 May 2024, 14:22 | 250 | 250 per 100 ml |
| 4 May 2024, 11:45 | 81 | 81 per 100 ml |
Everything measured here
32 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 32 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 1 | Jun 2026 – Jun 2026 | 105.8% 4 Jun 2026 |
| Temperature of Water 0076 | River water | 1 | Jun 2026 – Jun 2026 | 14.4 °C 4 Jun 2026 |
| pH 0061 | River water | 2 | Jun 2026 – Sep 2026 | 7.9 8 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 1 | Jun 2026 – Jun 2026 | 447 µS/cm 4 Jun 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 24 | May 2024 – Sep 2026 | 37000 per 100 ml 8 Sep 2026 |
| Barium, Dissolved 9446 | River water | 1 | Sep 2026 – Sep 2026 | below 10 µg/l 8 Sep 2026 |
| Boron, Dissolved 9447 | River water | 1 | Sep 2026 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Cadmium 0108 | River water | 1 | Sep 2026 – Sep 2026 | 0.1 µg/l 8 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 1 | Sep 2026 – Sep 2026 | below 0.1 µg/l 8 Sep 2026 |
| Calcium, Dissolved 0239 | River water | 1 | Sep 2026 – Sep 2026 | 36 mg/l 8 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 1 | Sep 2026 – Sep 2026 | 5.7 mg/l 8 Sep 2026 |
| Copper 6452 | River water | 1 | Sep 2026 – Sep 2026 | 8.7 µg/l 8 Sep 2026 |
| Copper, Dissolved 6450 | River water | 1 | Sep 2026 – Sep 2026 | 6.2 µg/l 8 Sep 2026 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 24 | May 2024 – Sep 2026 | 37000 colony forming units / 100ml 8 Sep 2026 |
| Hardness, Total as CaCO3 0158 | River water | 1 | Sep 2026 – Sep 2026 | 127 mg/l 8 Sep 2026 |
| Iron, Dissolved 6460 | River water | 1 | Sep 2026 – Sep 2026 | 89 µg/l 8 Sep 2026 |
| Lead 0050 | River water | 1 | Sep 2026 – Sep 2026 | 2.2 µg/l 8 Sep 2026 |
| Lead, Dissolved 0052 | River water | 1 | Sep 2026 – Sep 2026 | below 2 µg/l 8 Sep 2026 |
| Lithium, Dissolved 4201 | River water | 1 | Sep 2026 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 1 | Sep 2026 – Sep 2026 | 9.1 mg/l 8 Sep 2026 |
| Manganese, Dissolved 6458 | River water | 1 | Sep 2026 – Sep 2026 | 21 µg/l 8 Sep 2026 |
| MST Filtration 4926 | River water | 24 | May 2024 – Sep 2026 | DNA Stored 8 Sep 2026 |
| Nickel 6462 | River water | 1 | Sep 2026 – Sep 2026 | 1.1 µg/l 8 Sep 2026 |
| Nickel, Dissolved 3410 | River water | 1 | Sep 2026 – Sep 2026 | below 1 µg/l 8 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 1 | Sep 2026 – Sep 2026 | 5 mg/l 8 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 1 | Sep 2026 – Sep 2026 | 26 mg/l 8 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Sep 2026 – Sep 2026 | 15 mg/l 8 Sep 2026 |
| Strontium, Filtered 6693 | River water | 1 | Sep 2026 – Sep 2026 | 150 µg/l 8 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 1 | Sep 2026 – Sep 2026 | 36 mg/l 8 Sep 2026 |
| Volume of Sample Filtered 4865 | River water | 24 | May 2024 – Sep 2026 | 510 millilitre 8 Sep 2026 |
| Zinc 6455 | River water | 1 | Sep 2026 – Sep 2026 | 50 µg/l 8 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 1 | Sep 2026 – Sep 2026 | 32 µg/l 8 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.