Porthpean water quality

GREEN

designated bathing water · · South West Water

Porthpean is a designated bathing water in Cornwall, currently rated GREEN for swimming — No recent overflow, low rainfall, no high samples. Its latest Environment Agency classification is excellent (2025), and 198 storm-overflow spills were recorded nearby in 2025. Below: live risk, recent spills, official samples, rainfall, tides and nearby reports.

Safe to swim right now?

Looking good right now

No recent overflow, low rainfall, no high samples.

Do not rely solely on this website for health decisions. Check official alerts and use your own judgement. Seek medical advice if you are unwell.

Current status

Risk: GREEN No recent overflow, low rainfall, no high samples.

Active overflows nearby: 0
Recent overflows (48h): 0
Rainfall (48h): 1.2 mm

Official EA classification

excellent (2025)

Latest official sample

2026-06-20 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

1.2 mm

Rainfall 48h

2.0 mm

Rainfall 7d

Outfalls within 5 km

198

Spills (2025, official)

Spills 2026 so far (live)

Spills last 30d

falling 1.08m

Tide now

Recent storm overflows nearby (30 days)

In the news nearby

Devon County Council prepares historic lawsuit against South West Water · 2026-06-27
South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
Welsh Water to pay £44 . 7m over sewage spills after seriou failures · 2026-06-05
River Lim Action Group blast sewage discharges in Lyme Regis | Bridport and Lyme Regis News · 2026-06-11
South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
South West Water owner says firm must rebuild trust after parasite outbreak | East London and West Essex Guardian Series · 2026-06-10

Storm-overflow spills near here, by year (EDM)

Recent spills near here (precise, SWW)

spill, 2 min2026-06-10 · ~3.5 km
spill, 2 min2026-06-10 · ~3.5 km
spill, 228 min2026-06-06 · ~2.1 km
spill, 228 min2026-06-06 · ~2.1 km
spill, 13 min2026-06-03 · ~0.9 km
spill, 13 min2026-06-03 · ~0.9 km
spill, 2 min2026-05-21 · ~3.2 km
spill, 2 min2026-05-21 · ~3.2 km

Full spill history near Porthpean

Download CSV

Every storm-overflow discharge Glanmor has recorded within 5 km of Porthpean, newest first.

10 discharge events

Start	End	Outfall	Distance
2026-06-10 09:35	2026-06-10 09:38	TRIBUTARY OF WHITE RIVER	~3.5 km
2026-06-06 07:57	2026-06-06 11:45	ST AUSTELL RIVER	~2.1 km
2026-06-03 19:53	2026-06-03 20:06	ST AUSTELL BAY (C)	~0.9 km
2026-05-21 09:48	2026-05-21 09:51	POLGOOTH STREAM	~3.2 km
2026-05-15 09:24	2026-05-15 09:25	ST AUSTELL RIVER(S)	~2.6 km
2026-05-01 09:15	2026-05-01 09:18	winWINSFORD SPST_PSCSOEO_WINSFORD	~0.8 km
2026-02-18 19:40	2026-02-18 20:00	SANDY RIVER	~1.8 km
2026-02-01 04:16	2026-02-01 04:35	(C) ST AUSTELL BAY	~3.4 km
2025-12-20 18:38	2025-12-20 18:46	ST AUSTELL RIVER (S)	~3.7 km
2025-10-23 07:41	2025-10-23 07:42	ST AUSTELL BAY (C)	~0.2 km

22 precise spill records (duration & volume)

When	Detail	Distance
2026-06-10 09:35	spill, 2 min	~3.5 km
2026-06-10 09:35	spill, 2 min	~3.5 km
2026-06-06 07:57	spill, 228 min	~2.1 km
2026-06-06 07:57	spill, 228 min	~2.1 km
2026-06-03 19:53	spill, 13 min	~0.9 km
2026-06-03 19:53	spill, 13 min	~0.9 km
2026-05-21 09:48	spill, 2 min	~3.2 km
2026-05-21 09:48	spill, 2 min	~3.2 km
2026-05-15 09:24	spill, 1 min	~2.6 km
2026-05-15 09:24	spill, 1 min	~2.6 km
2026-05-01 09:15	spill, 2 min	~0.8 km
2026-05-01 09:15	spill, 2 min	~0.8 km
2026-02-18 19:40	spill, 21 min	~1.8 km
2026-02-18 19:40	spill, 21 min	~1.8 km
2026-02-01 04:16	spill, 20 min	~3.4 km
2026-02-01 04:16	spill, 20 min	~3.4 km
2026-01-08 11:29	spill, 2 min	~4.5 km
2026-01-08 11:29	spill, 2 min	~4.5 km
2025-12-20 18:38	spill, 8 min	~3.7 km
2025-12-20 18:38	spill, 8 min	~3.7 km
2025-10-23 07:41	spill, 1 min	~0.2 km
2025-10-23 07:41	spill, 1 min	~0.2 km

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Water quality trend

Porthpean — frequently asked questions

Is it safe to swim at Porthpean today?

Porthpean is currently rated GREEN: No recent overflow, low rainfall, no high samples. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Porthpean?

198 storm-overflow spills were recorded near Porthpean in 2025 (EA Event Duration Monitoring), and 8 spill events have been logged nearby so far this year.

What is Porthpean's bathing water classification?

Porthpean is classified excellent for 2025 by the Environment Agency.

Data & provenance

Last updated: 3 h ago (2026-06-29 14:00 UTC)
Sources: Environment Agency (samples & classification), South West Water (overflows), EA EDM (annual spills), Open-Meteo (rainfall & tide). Full list on about.
Confidence: High — official classification, 10 outfalls monitored within 5 km.
Risk model: v0.3
Download: Sample timeline (JSON) · All beaches (CSV)

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