Portwrinkle water quality

RED

designated bathing water · · South West Water

Portwrinkle 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 excellent (2025), and 194 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.
South West Water status: Amber · since 2026-10-24 13:45
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: 6
  • Recent overflows (48h): 15
  • Rainfall (48h): 38.7 mm

Official EA classification

excellent (2025)

Latest official sample

2026-09-21 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

38.7 mm
Rainfall 48h
73.6 mm
Rainfall 7d
7
Outfalls within 5 km
194
Spills (2025, official)
54
Spills 2026 so far (live)
32
Spills last 30d
rising 1.80m
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)

Full spill history near Portwrinkle

Download CSV

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

55 discharge events
StartEndOutfallDistance
2026-10-24 14:012026-10-24 14:15WHITSAND BAY (C)~0.3 km
2026-10-24 13:45ongoingENGLISH CHANNEL~3.9 km
2026-10-24 13:24ongoingENGLISH CHANNEL~3.9 km
2026-10-24 12:45ongoingPOLBATHIC LAKE (ESTUARINE)~3.3 km
2026-10-24 12:30ongoingPOLBATHIC LAKE (ESTUARINE)~3.3 km
2026-10-24 11:45ongoingRIVER LYNHER ESTUARY~4.0 km
2026-10-24 11:18ongoingRIVER LYNHER ESTUARY~4.0 km
2026-10-24 11:152026-10-24 11:30RIVER LYNHER ESTUARY~4.0 km
2026-10-24 09:152026-10-24 09:45RIVER LYNHER ESTUARY~4.0 km
2026-10-24 08:502026-10-24 09:20RIVER LYNHER ESTUARY~4.0 km
2026-10-23 06:152026-10-23 06:30RIVER LYNHER ESTUARY~4.0 km
2026-10-23 05:482026-10-23 06:04RIVER LYNHER ESTUARY~4.0 km
2026-10-23 05:432026-10-23 05:45POLBATHIC STREAM(S)~3.3 km
2026-10-23 01:402026-10-23 01:43POLBATHIC STREAM(S)~3.3 km
2026-10-23 01:322026-10-23 01:50RIVER LYNHER ESTUARY~4.0 km
2026-10-22 20:452026-10-22 21:15RIVER LYNHER ESTUARY~4.0 km
2026-10-22 20:352026-10-22 20:39POLBATHIC STREAM(S)~3.3 km
2026-10-22 20:302026-10-22 20:48RIVER LYNHER ESTUARY~4.0 km
2026-10-22 19:452026-10-22 20:00RIVER LYNHER ESTUARY~4.0 km
2026-10-22 18:452026-10-22 19:30RIVER LYNHER ESTUARY~4.0 km
2026-10-22 18:222026-10-22 19:08RIVER LYNHER ESTUARY~4.0 km
2026-10-21 02:302026-10-21 03:00RIVER LYNHER ESTUARY~4.0 km
2026-10-21 02:122026-10-21 02:42RIVER LYNHER ESTUARY~4.0 km
2026-10-21 00:452026-10-21 01:00RIVER LYNHER ESTUARY~4.0 km
2026-10-19 16:152026-10-19 16:30RIVER LYNHER ESTUARY~4.0 km
2026-10-19 15:542026-10-19 16:04RIVER LYNHER ESTUARY~4.0 km
2026-10-15 22:242026-10-15 22:34RIVER LYNHER ESTUARY~4.0 km
2026-10-09 14:002026-10-09 14:15RIVER LYNHER ESTUARY~4.0 km
2026-10-09 13:462026-10-09 13:52RIVER LYNHER ESTUARY~4.0 km
2026-10-01 11:012026-10-01 11:03ENGLISH CHANNEL~3.9 km
2026-09-30 03:002026-09-30 03:15RIVER LYNHER ESTUARY~4.0 km
2026-09-30 02:382026-09-30 02:50RIVER LYNHER ESTUARY~4.0 km
2026-09-17 06:022026-09-17 06:14RIVER LYNHER ESTUARY~4.0 km
2026-09-13 11:402026-09-13 13:32RIVER LYNHER ESTUARY~4.0 km
2026-09-08 05:542026-09-08 06:18RIVER LYNHER ESTUARY~4.0 km
2026-09-08 00:152026-09-08 01:00RIVER LYNHER ESTUARY~4.0 km
2026-08-30 15:152026-08-30 16:30RIVER LYNHER ESTUARY~4.0 km
2026-08-30 15:082026-08-30 16:15RIVER LYNHER ESTUARY~4.0 km
2026-08-29 09:452026-08-29 12:15RIVER LYNHER ESTUARY~4.0 km
2026-08-29 09:182026-08-29 09:34RIVER LYNHER ESTUARY~4.0 km
2026-08-29 05:152026-08-29 05:30RIVER LYNHER ESTUARY~4.0 km
2026-08-27 22:122026-08-27 22:14RIVER LYNHER ESTUARY~4.0 km
2026-08-25 06:482026-08-25 06:52RIVER LYNHER ESTUARY~4.0 km
2026-07-30 10:362026-07-30 10:38RIVER LYNHER~1.8 km
2026-07-24 10:452026-07-24 12:15ENGLISH CHANNEL~3.9 km
2026-07-24 10:342026-07-24 12:00ENGLISH CHANNEL~3.9 km
2026-07-22 16:152026-07-22 16:15RIVER LYNHER~1.8 km
2026-07-15 18:052026-07-15 18:06POLBATHIC STREAM(S)~3.3 km
2026-06-06 07:542026-06-06 08:16RIVER LYNHER ESTUARY~4.0 km
2026-05-28 21:152026-05-28 21:16POLBATHIC STREAM(S)~3.3 km
2026-04-14 11:232026-04-14 11:36ENGLISH CHANNEL~3.9 km
2026-02-27 00:302026-02-27 00:39POLBATHIC LAKE (ESTUARINE)~3.3 km
2026-02-18 15:542026-02-18 16:59WHITSAND BAY (C)~0.3 km
2026-01-29 12:312026-02-01 11:08POLBATHIC LAKE (E)~3.2 km
2025-10-26 21:002025-10-26 21:02RIVER LYNHER~1.8 km
53 precise spill records (duration & volume)
WhenDetailDistance
2026-10-24 13:40spill, 18 min~0.3 km
2026-10-24 13:24spill, 66 min~3.9 km
2026-10-24 12:30spill, 120 min~3.3 km
2026-10-24 11:18spill, 192 min~4.0 km
2026-10-24 10:58spill, 14 min~4.0 km
2026-10-24 10:38spill, 8 min~4.0 km
2026-10-24 08:50spill, 30 min~4.0 km
2026-10-23 05:48spill, 16 min~4.0 km
2026-10-23 05:43spill, 3 min~3.3 km
2026-10-23 01:40spill, 3 min~3.3 km
2026-10-23 01:32spill, 18 min~4.0 km
2026-10-22 20:35spill, 3 min~3.3 km
2026-10-22 20:30spill, 18 min~4.0 km
2026-10-22 19:58spill, 8 min~4.0 km
2026-10-22 19:34spill, 6 min~4.0 km
2026-10-22 18:22spill, 38 min~4.0 km
2026-10-21 02:12spill, 30 min~4.0 km
2026-10-21 00:34spill, 6 min~4.0 km
2026-10-19 15:54spill, 10 min~4.0 km
2026-10-15 22:24spill, 10 min~4.0 km
2026-10-09 13:46spill, 6 min~4.0 km
2026-10-01 11:01spill, 2 min~3.9 km
2026-09-30 02:38spill, 12 min~4.0 km
2026-09-30 00:56spill, 4 min~4.0 km
2026-09-29 21:32spill, 64 min~4.0 km
2026-09-17 06:02spill, 12 min~4.0 km
2026-09-13 11:40spill, 112 min~4.0 km
2026-09-08 05:54spill, 24 min~4.0 km
2026-09-08 00:02spill, 0 min~4.0 km
2026-09-07 23:22spill, 8 min~4.0 km
2026-08-30 15:08spill, 44 min~4.0 km
2026-08-30 13:20spill, 16 min~4.0 km
2026-08-29 09:18spill, 16 min~4.0 km
2026-08-27 22:12spill, 2 min~4.0 km
2026-08-25 06:48spill, 4 min~4.0 km
2026-07-30 10:36spill, 2 min~1.8 km
2026-07-24 10:34spill, 58 min~3.9 km
2026-07-22 16:15spill, 0 min~1.8 km
2026-07-15 18:05spill, 2 min~3.3 km
2026-06-06 07:54spill, 22 min~4.0 km
2026-06-06 07:54spill, 22 min~4.0 km
2026-05-28 21:15spill, 2 min~3.3 km
2026-05-28 21:15spill, 2 min~3.3 km
2026-04-14 11:23spill, 13 min~3.9 km
2026-04-14 11:23spill, 13 min~3.9 km
2026-02-27 00:30spill, 9 min~3.3 km
2026-02-27 00:30spill, 9 min~3.3 km
2026-02-18 15:54spill, 65 min~0.3 km
2026-02-18 15:54spill, 65 min~0.3 km
2026-01-29 12:31spill, 4237 min~3.2 km
2026-01-29 12:31spill, 4237 min~3.2 km
2025-10-26 21:00spill, 2 min~1.8 km
2025-10-26 21:00spill, 2 min~1.8 km
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Water quality — 7-year trend

Water quality in 2026 was broadly level with 2025.

YearEA classificationSamplesE. coli (geo-mean)Enterococci (geo-mean)High readings
2019—310 cfu/100ml10 cfu/100ml0
2021—523 cfu/100ml25 cfu/100ml1 of 5
2022—1011 cfu/100ml11 cfu/100ml0
2023—1010 cfu/100ml10 cfu/100ml0
2024—1011 cfu/100ml10 cfu/100ml0
2025excellent2012 cfu/100ml11 cfu/100ml0
2026—1511 cfu/100ml10 cfu/100ml0

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.

Portwrinkle — frequently asked questions

Is it safe to swim at Portwrinkle today?

Portwrinkle 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 Portwrinkle?

194 storm-overflow spills were recorded near Portwrinkle in 2025 (EA Event Duration Monitoring), and 54 spill events have been logged nearby so far this year.

What is Portwrinkle's bathing water classification?

Portwrinkle is classified excellent for 2025 by the Environment Agency.

Data & provenance

Last updated
7 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, 7 outfalls monitored within 5 km.
Risk model
v0.4
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Sample timeline (JSON) · All beaches (CSV)
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