Perranporth water quality

RED

designated bathing water · · South West Water

Perranporth is a designated bathing water in Cornwall, currently rated RED for swimming — Storm overflow discharging within 5 km right now. Incoming/high tide may carry discharge closer to shore. Its latest Environment Agency classification is good (2025), and 223 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?

Avoid — pollution risk

Storm overflow discharging within 5 km right now. Incoming/high tide may carry discharge closer to shore.

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: RED Storm overflow discharging within 5 km right now. Incoming/high tide may carry discharge closer to shore.

Active overflows nearby: 4
Recent overflows (48h): 12
Rainfall (48h): 27.7 mm

Official EA classification

good (2025)

Latest official sample

2026-09-24 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

27.7 mm

Rainfall 48h

60.4 mm

Rainfall 7d

Outfalls within 5 km

223

Spills (2025, official)

Spills 2026 so far (live)

Spills last 30d

high 2.71m

Tide now

Recent storm overflows nearby (30 days)

In the news nearby

No recent local news matched.

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

Recent spills near here (precise, SWW)

spill, 211 min2026-10-24 · ~2.7 km
spill, 231 min2026-10-24 · ~2.7 km
spill, 12 min2026-10-23 · ~4.7 km
spill, 425 min2026-10-23 · ~2.7 km
spill, 58 min2026-10-22 · ~2.7 km
spill, 82 min2026-10-22 · ~2.7 km
spill, 20 min2026-10-22 · ~4.7 km
spill, 1616 min2026-10-22 · ~2.7 km

Full spill history near Perranporth

Download CSV

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

68 discharge events

Start	End	Outfall	Distance
2026-10-24 11:15	ongoing	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-24 11:00	ongoing	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-24 10:58	ongoing	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-24 10:39	ongoing	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-23 06:45	2026-10-23 07:30	TREVAUNANCE STREAM(S)	~4.7 km
2026-10-23 06:22	2026-10-23 06:34	TREVAUNANCE STREAM(S)	~4.7 km
2026-10-23 01:45	2026-10-23 09:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-23 01:26	2026-10-23 08:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-23 00:00	2026-10-23 00:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-22 21:33	2026-10-22 22:55	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-22 19:32	2026-10-22 19:46	TREVAUNANCE STREAM(S)	~4.7 km
2026-10-22 19:13	2026-10-22 19:33	TREVAUNANCE STREAM(S)	~4.7 km
2026-10-22 18:45	2026-10-23 22:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-22 18:45	2026-10-22 23:30	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-22 18:29	2026-10-23 22:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-22 18:11	2026-10-22 23:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-21 00:45	2026-10-21 03:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-21 00:29	2026-10-21 03:02	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-20 23:45	2026-10-21 00:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-20 23:33	2026-10-20 23:54	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-15 22:15	2026-10-16 03:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-15 22:02	2026-10-16 02:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-15 21:45	2026-10-15 22:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-15 21:28	2026-10-15 21:57	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-10-06 11:53	2026-10-06 11:54	TREVAUNANCE STREAM(S)	~4.7 km
2026-09-29 20:45	2026-09-30 01:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-29 20:27	2026-09-30 01:27	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-29 20:15	2026-09-30 03:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-29 19:54	2026-09-30 02:58	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-29 11:45	2026-09-29 12:15	STREAM (S)	~3.9 km
2026-09-29 11:23	2026-09-29 11:50	STREAM (S)	~3.9 km
2026-09-27 19:32	2026-09-27 19:34	STREAM (S)	~3.9 km
2026-09-27 11:56	2026-09-27 11:59	STREAM (S)	~3.9 km
2026-09-27 02:15	2026-09-27 02:18	STREAM (S)	~3.9 km
2026-09-22 12:45	2026-09-22 13:00	STREAM (S)	~3.9 km
2026-09-22 12:33	2026-09-22 12:40	STREAM (S)	~3.9 km
2026-09-22 09:58	2026-09-22 10:00	STREAM (S)	~3.9 km
2026-09-22 04:59	2026-09-22 05:02	STREAM (S)	~3.9 km
2026-09-11 21:29	2026-09-11 21:31	STREAM (S)	~3.9 km
2026-09-08 06:34	2026-09-08 09:23	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-08 02:45	2026-09-09 00:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-08 02:00	2026-09-09 00:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-08 01:37	2026-09-08 14:11	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-09-04 19:53	2026-09-04 20:49	STREAM (S)	~3.9 km
2026-08-29 05:15	2026-08-29 06:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-29 04:40	2026-08-29 06:11	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 14:08	2026-08-27 14:10	STREAM (S)	~3.9 km
2026-08-27 04:00	2026-08-27 04:30	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 03:24	2026-08-27 04:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 02:30	2026-08-27 03:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 02:25	2026-08-27 03:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 00:15	2026-08-27 07:00	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-27 00:00	2026-08-27 01:15	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-26 23:50	2026-08-27 06:45	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-08-26 23:31	2026-08-26 23:32	STREAM (S)	~3.9 km
2026-08-25 10:45	2026-08-25 11:15	STREAM (S)	~3.9 km
2026-08-25 10:27	2026-08-25 10:47	STREAM (S)	~3.9 km
2026-08-25 07:30	2026-08-25 07:45	STREAM (S)	~3.9 km
2026-08-25 07:12	2026-08-25 07:19	STREAM (S)	~3.9 km
2026-06-30 20:26	2026-06-30 20:43	STREAM (S)	~3.9 km
2026-06-30 20:00	2026-06-30 21:30	STREAM (S)	~3.9 km
2026-06-30 19:06	2026-06-30 21:15	STREAM (S)	~3.9 km
2026-06-30 17:15	2026-06-30 18:00	STREAM (S)	~3.9 km
2026-06-24 11:44	2026-06-24 11:48	STREAM (S)	~3.9 km
2026-06-10 10:38	2026-06-10 12:46	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-06-10 09:39	2026-06-10 10:38	TRIB OF THE BOLINGEY STREAM	~2.7 km
2026-05-18 01:35	2026-05-18 01:50	TREVAUNANCE STREAM(S)	~4.7 km
2025-07-22 14:24	2025-07-22 14:40	BOLINGEY STREAM	~0.7 km

52 precise spill records (duration & volume)

When	Detail	Distance
2026-10-24 10:58	spill, 211 min	~2.7 km
2026-10-24 10:39	spill, 231 min	~2.7 km
2026-10-23 06:22	spill, 12 min	~4.7 km
2026-10-23 01:26	spill, 425 min	~2.7 km
2026-10-22 23:19	spill, 58 min	~2.7 km
2026-10-22 21:33	spill, 82 min	~2.7 km
2026-10-22 19:13	spill, 20 min	~4.7 km
2026-10-22 18:29	spill, 1616 min	~2.7 km
2026-10-22 18:11	spill, 183 min	~2.7 km
2026-10-21 00:29	spill, 153 min	~2.7 km
2026-10-20 23:33	spill, 21 min	~2.7 km
2026-10-15 22:02	spill, 273 min	~2.7 km
2026-10-15 21:28	spill, 29 min	~2.7 km
2026-10-06 11:53	spill, 1 min	~4.7 km
2026-09-29 20:27	spill, 301 min	~2.7 km
2026-09-29 19:54	spill, 424 min	~2.7 km
2026-09-29 11:23	spill, 27 min	~3.9 km
2026-09-27 19:32	spill, 2 min	~3.9 km
2026-09-27 11:56	spill, 4 min	~3.9 km
2026-09-27 02:15	spill, 3 min	~3.9 km
2026-09-22 12:33	spill, 7 min	~3.9 km
2026-09-22 09:58	spill, 3 min	~3.9 km
2026-09-22 04:59	spill, 3 min	~3.9 km
2026-09-11 21:29	spill, 1 min	~3.9 km
2026-09-08 06:34	spill, 169 min	~2.7 km
2026-09-08 01:37	spill, 754 min	~2.7 km
2026-09-04 19:53	spill, 56 min	~3.9 km
2026-09-02 03:33	spill, 2 min	~3.9 km
2026-08-29 04:40	spill, 91 min	~2.7 km
2026-08-27 14:08	spill, 2 min	~3.9 km
2026-08-27 03:24	spill, 36 min	~2.7 km
2026-08-27 02:25	spill, 19 min	~2.7 km
2026-08-26 23:50	spill, 401 min	~2.7 km
2026-08-26 23:31	spill, 1 min	~3.9 km
2026-08-26 23:13	spill, 103 min	~2.7 km
2026-08-25 10:27	spill, 20 min	~3.9 km
2026-08-25 07:12	spill, 6 min	~3.9 km
2026-06-30 20:26	spill, 17 min	~3.9 km
2026-06-30 19:06	spill, 53 min	~3.9 km
2026-06-30 18:50	spill, 1 min	~3.9 km
2026-06-24 11:44	spill, 3 min	~3.9 km
2026-06-24 11:44	spill, 3 min	~3.9 km
2026-06-10 10:38	spill, 128 min	~2.7 km
2026-06-10 10:38	spill, 128 min	~2.7 km
2026-06-10 09:39	spill, 60 min	~2.7 km
2026-06-10 09:39	spill, 60 min	~2.7 km
2026-05-18 01:35	spill, 15 min	~4.7 km
2026-05-18 01:35	spill, 15 min	~4.7 km
2026-03-07 05:37	spill, 90 min	~4.2 km
2026-03-07 05:37	spill, 90 min	~4.2 km
2025-07-22 14:24	spill, 15 min	~0.7 km
2025-07-22 14:24	spill, 15 min	~0.7 km

Take action — email SWW / your MP Got ill here? Build a report Report pollution

Water quality — 7-year trend

Water quality improved in 2026: average E. coli was 29% lower than 2025.

Year	EA classification	Samples	E. coli (geo-mean)	Enterococci (geo-mean)	High readings
2019	—	12	15 cfu/100ml	17 cfu/100ml	0
2020	—	3	12 cfu/100ml	10 cfu/100ml	0
2021	—	20	19 cfu/100ml	20 cfu/100ml	1 of 20
2022	—	20	15 cfu/100ml	13 cfu/100ml	0
2023	—	21	12 cfu/100ml	16 cfu/100ml	0
2024	—	15	14 cfu/100ml	14 cfu/100ml	1 of 15
2025	good	20	21 cfu/100ml	34 cfu/100ml	2 of 20
2026	—	20	15 cfu/100ml	16 cfu/100ml	1 of 20

Geometric mean of Environment Agency samples per calendar year (the standard bathing-water statistic). "High readings" are samples at or above 500 E. coli or 200 enterococci cfu/100ml.

Perranporth — frequently asked questions

Is it safe to swim at Perranporth today?

Perranporth is currently rated RED: Storm overflow discharging within 5 km right now. Incoming/high tide may carry discharge closer to shore. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Perranporth?

223 storm-overflow spills were recorded near Perranporth in 2025 (EA Event Duration Monitoring), and 67 spill events have been logged nearby so far this year.

What is Perranporth's bathing water classification?

Perranporth is classified good for 2025 by the Environment Agency.

Data & provenance

Last updated: 8 min ago (2026-10-24 15:00 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, 5 outfalls monitored within 5 km.
Risk model: v0.4
Download: Sample timeline (JSON) · All beaches (CSV)

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