Mullion Brook at Polurrian Cove Beach

EA name: MULLION BROOK AT POLURRIAN COVE BEACH (also listed as “POLURRIAN COVE STREAM A”)
Environment Agency sampling point SW-81917910 · 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 Sep 2025, 13:0212 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: 31 since 11 Jun 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 166850, 18840As published, to the nearest 10 m. Open in a map
River, by its own name: Mullion Brook
River, by the map: Not placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
Next gauge downstream: Not known
Why it was sampled: Planned investigation (local monitoring) (31 samples)

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

220 per 100 ml

Sampled 17 Sep 2025, 12 months ago · 31 results banked

Every result (31)

Sampled	Result as published	Reads as
17 Sep 2025, 13:02	220	220 per 100 ml
14 Sep 2025, 13:03	20000	20000 per 100 ml
4 Sep 2025, 11:13	620	620 per 100 ml
28 Aug 2025, 11:46	18000	18000 per 100 ml
19 Aug 2025, 11:13	130	130 per 100 ml
15 Aug 2025, 11:40	54	54 per 100 ml
5 Aug 2025, 11:15	200	200 per 100 ml
31 Jul 2025, 12:11	14000	14000 per 100 ml
21 Jul 2025, 11:22	150	150 per 100 ml
15 Jul 2025, 13:27	320	320 per 100 ml
11 Jul 2025, 11:09	200	200 per 100 ml
2 Jul 2025, 13:20	480	480 per 100 ml
27 Jun 2025, 10:51	210	210 per 100 ml
21 Jun 2025, 11:35	3400	3400 per 100 ml
9 Jun 2025, 13:01	210	210 per 100 ml
4 Jun 2025, 12:21	150	150 per 100 ml
28 May 2025, 13:18	110	110 per 100 ml
22 May 2025, 10:02	120	120 per 100 ml
19 May 2025, 11:45	72	72 per 100 ml
3 May 2025, 11:36	140	140 per 100 ml
11 Sep 2024, 11:18	350	350 per 100 ml
26 Aug 2024, 13:10	130	130 per 100 ml
11 Aug 2024, 11:15	1500	1500 per 100 ml
29 Jul 2024, 11:09	260	260 per 100 ml
26 Jul 2024, 10:40	620	620 per 100 ml
19 Jul 2024, 12:05	380	380 per 100 ml
9 Jul 2024, 11:55	2500	2500 per 100 ml
1 Jul 2024, 12:04	510	510 per 100 ml
27 Jun 2024, 11:18	190	190 per 100 ml
21 Jun 2024, 13:10	450	450 per 100 ml
11 Jun 2024, 13:40	150	150 per 100 ml

Everything measured here

5 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 5 rows

Determinand	Material	Results	First – last	Latest result
Escherichia coli : Confirmed : MF 2348	River water	31	Jun 2024 – Sep 2025	220 per 100 ml 17 Sep 2025
Enterococci: Intestinal: Confirmed: MF 3723	River water	30	Jun 2024 – Sep 2025	230 colony forming units / 100ml 17 Sep 2025
Enterococci: Intestinal: Presumptive: MF 3722	River water	30	Jun 2024 – Sep 2025	230 colony forming units / 100ml 17 Sep 2025
MST Filtration 4926	River water	30	Jun 2024 – Sep 2025	DNA Stored 17 Sep 2025
Volume of Sample Filtered 4865	River water	30	Jun 2024 – Sep 2025	840 millilitre 17 Sep 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.