Portwrinkle water quality
AMBERdesignated bathing water · · South West Water
Portwrinkle is a designated bathing water in Cornwall, currently rated AMBER for swimming — A storm overflow discharged within 5 km in the last 48 hours. 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.
Current status
Risk: AMBER A storm overflow discharged within 5 km in the last 48 hours. Incoming/high tide may carry discharge closer to shore.
- Active overflows nearby: 0
- Recent overflows (48h): 1
- Rainfall (48h): 4.2 mm
Official EA classification
excellent (2025)
Latest official sample
2026-08-05 — E.coli 10, enterococci 10 cfu/100ml
Latest independent sample
None published
Pollution & environment data
Recent storm overflows nearby (30 days)
- 2026-07-30 10:36 · ended~1.8 km
- 2026-08-25 06:48 · ended~4.0 km
In the news nearby
No recent local news matched.
Storm-overflow spills near here, by year (EDM)
Recent spills near here (precise, SWW)
- spill, 4 min2026-08-25 · ~4.0 km
- spill, 2 min2026-07-30 · ~1.8 km
- spill, 58 min2026-07-24 · ~3.9 km
- spill, 0 min2026-07-22 · ~1.8 km
- spill, 2 min2026-07-15 · ~3.3 km
- spill, 22 min2026-06-06 · ~4.0 km
- spill, 22 min2026-06-06 · ~4.0 km
- spill, 2 min2026-05-28 · ~3.3 km
Full spill history near Portwrinkle
Download CSVEvery storm-overflow discharge Glanmor has recorded within 5 km of Portwrinkle, newest first.
13 discharge events
| Start | End | Outfall | Distance |
|---|---|---|---|
| 2026-08-25 06:48 | 2026-08-25 06:52 | RIVER LYNHER ESTUARY | ~4.0 km |
| 2026-07-30 10:36 | 2026-07-30 10:38 | RIVER LYNHER | ~1.8 km |
| 2026-07-24 10:45 | 2026-07-24 12:15 | ENGLISH CHANNEL | ~3.9 km |
| 2026-07-24 10:34 | 2026-07-24 12:00 | ENGLISH CHANNEL | ~3.9 km |
| 2026-07-22 16:15 | 2026-07-22 16:15 | RIVER LYNHER | ~1.8 km |
| 2026-07-15 18:05 | 2026-07-15 18:06 | POLBATHIC STREAM(S) | ~3.3 km |
| 2026-06-06 07:54 | 2026-06-06 08:16 | RIVER LYNHER ESTUARY | ~4.0 km |
| 2026-05-28 21:15 | 2026-05-28 21:16 | POLBATHIC STREAM(S) | ~3.3 km |
| 2026-04-14 11:23 | 2026-04-14 11:36 | ENGLISH CHANNEL | ~3.9 km |
| 2026-02-27 00:30 | 2026-02-27 00:39 | POLBATHIC LAKE (ESTUARINE) | ~3.3 km |
| 2026-02-18 15:54 | 2026-02-18 16:59 | WHITSAND BAY (C) | ~0.3 km |
| 2026-01-29 12:31 | 2026-02-01 11:08 | POLBATHIC LAKE (E) | ~3.2 km |
| 2025-10-26 21:00 | 2025-10-26 21:02 | RIVER LYNHER | ~1.8 km |
19 precise spill records (duration & volume)
| When | Detail | Distance |
|---|---|---|
| 2026-08-25 06:48 | spill, 4 min | ~4.0 km |
| 2026-07-30 10:36 | spill, 2 min | ~1.8 km |
| 2026-07-24 10:34 | spill, 58 min | ~3.9 km |
| 2026-07-22 16:15 | spill, 0 min | ~1.8 km |
| 2026-07-15 18:05 | spill, 2 min | ~3.3 km |
| 2026-06-06 07:54 | spill, 22 min | ~4.0 km |
| 2026-06-06 07:54 | spill, 22 min | ~4.0 km |
| 2026-05-28 21:15 | spill, 2 min | ~3.3 km |
| 2026-05-28 21:15 | spill, 2 min | ~3.3 km |
| 2026-04-14 11:23 | spill, 13 min | ~3.9 km |
| 2026-04-14 11:23 | spill, 13 min | ~3.9 km |
| 2026-02-27 00:30 | spill, 9 min | ~3.3 km |
| 2026-02-27 00:30 | spill, 9 min | ~3.3 km |
| 2026-02-18 15:54 | spill, 65 min | ~0.3 km |
| 2026-02-18 15:54 | spill, 65 min | ~0.3 km |
| 2026-01-29 12:31 | spill, 4237 min | ~3.2 km |
| 2026-01-29 12:31 | spill, 4237 min | ~3.2 km |
| 2025-10-26 21:00 | spill, 2 min | ~1.8 km |
| 2025-10-26 21:00 | spill, 2 min | ~1.8 km |
Water quality — 7-year trend
Water quality in 2026 was broadly level with 2025.
| Year | EA classification | Samples | E. coli (geo-mean) | Enterococci (geo-mean) | High readings |
|---|---|---|---|---|---|
| 2019 | — | 3 | 10 cfu/100ml | 10 cfu/100ml | 0 |
| 2021 | — | 5 | 23 cfu/100ml | 25 cfu/100ml | 1 of 5 |
| 2022 | — | 10 | 11 cfu/100ml | 11 cfu/100ml | 0 |
| 2023 | — | 10 | 10 cfu/100ml | 10 cfu/100ml | 0 |
| 2024 | — | 10 | 11 cfu/100ml | 10 cfu/100ml | 0 |
| 2025 | excellent | 20 | 12 cfu/100ml | 11 cfu/100ml | 0 |
| 2026 | — | 10 | 11 cfu/100ml | 10 cfu/100ml | 0 |
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 AMBER: A storm overflow discharged within 5 km in the last 48 hours. 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 12 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
- 31 min ago (2026-08-26 15:15 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
- Download
- Sample timeline (JSON) · All beaches (CSV)
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