Maenporth water quality

AMBER

designated bathing water · · South West Water

Maenporth is a designated bathing water in Cornwall, currently rated AMBER for swimming — Recent rainfall or recent overflow nearby. Its latest Environment Agency classification is excellent (2025), and 555 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?
Take care
Recent rainfall or recent overflow nearby.
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: AMBER Recent rainfall or recent overflow nearby.

  • Active overflows nearby: 0
  • Recent overflows (48h): 1
  • Rainfall (48h): 0.4 mm

Official EA classification

excellent (2025)

Latest official sample

2026-06-11 — E.coli 10, enterococci 100 cfu/100ml

Latest independent sample

None published

Pollution & environment data

0.4 mm
Rainfall 48h
1.0 mm
Rainfall 7d
19
Outfalls within 5 km
555
Spills (2025, official)
17
Spills 2026 so far (live)
6
Spills last 30d
falling 1.13m
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 Maenporth

Download CSV

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

19 discharge events
StartEndOutfallDistance
2026-06-27 23:482026-06-27 23:56TRIB OF PENRYN RIVER(S)~4.7 km
2026-06-19 23:342026-06-19 23:50THE PENRYN RIVER (E)~4.9 km
2026-06-19 23:242026-06-20 01:21PENRYN RIVER(E)~3.9 km
2026-06-17 19:112026-06-17 19:38PENRYN RIVER (E)~4.4 km
2026-06-08 11:032026-06-08 11:11PENRYN RIVER(E)~4.4 km
2026-06-02 07:382026-06-02 15:35PENRYN RIVER(E)~3.9 km
2026-05-15 10:332026-05-15 10:35THE HELFORD CREEK(E)~4.6 km
2026-05-02 14:042026-05-02 15:19PENRYN RIVER(E)~4.4 km
2026-05-02 13:572026-05-02 15:07PENRYN RIVER~4.4 km
2026-04-22 10:022026-04-22 12:08PENRYN RIVER(E)~3.7 km
2026-03-13 10:282026-03-13 10:29PENRYN RIVER(E)~4.2 km
2026-03-04 10:442026-03-04 10:45PENRYN RIVER~3.9 km
2026-03-02 07:302026-03-02 23:55FALMOUTH BAY/TRIB BICKLAND WAT~1.8 km
2026-02-26 22:072026-02-26 22:23FALMOUTH BAY (E)~2.5 km
2026-02-18 15:572026-02-18 16:33PENRYN RIVER(E)~4.2 km
2026-02-15 13:302026-02-15 13:34PENRYN RIVER(E)~4.5 km
2026-01-20 14:432026-01-20 14:53PENRYN RIVER(E)~4.2 km
2025-11-03 13:252025-11-03 13:27SWANPOOL (S)~2.4 km
2025-02-14 07:332025-02-14 07:36PENRYN RIVER(E)~3.9 km
38 precise spill records (duration & volume)
WhenDetailDistance
2026-06-27 23:48spill, 7 min~4.7 km
2026-06-27 23:48spill, 7 min~4.7 km
2026-06-19 23:34spill, 16 min~4.9 km
2026-06-19 23:34spill, 16 min~4.9 km
2026-06-19 23:24spill, 117 min~3.9 km
2026-06-19 23:24spill, 117 min~3.9 km
2026-06-17 19:11spill, 26 min~4.4 km
2026-06-17 19:11spill, 26 min~4.4 km
2026-06-08 11:03spill, 8 min~4.4 km
2026-06-08 11:03spill, 8 min~4.4 km
2026-06-02 07:38spill, 477 min~3.9 km
2026-06-02 07:38spill, 477 min~3.9 km
2026-05-15 10:33spill, 2 min~4.6 km
2026-05-15 10:33spill, 2 min~4.6 km
2026-05-02 14:04spill, 75 min~4.4 km
2026-05-02 14:04spill, 75 min~4.4 km
2026-05-02 13:57spill, 70 min~4.4 km
2026-05-02 13:57spill, 70 min~4.4 km
2026-04-22 10:02spill, 127 min~3.7 km
2026-04-22 10:02spill, 127 min~3.7 km
2026-03-13 10:28spill, 2 min~4.2 km
2026-03-13 10:28spill, 2 min~4.2 km
2026-03-04 10:44spill, 1 min~3.9 km
2026-03-04 10:44spill, 1 min~3.9 km
2026-03-02 07:30spill, 985 min~1.8 km
2026-03-02 07:30spill, 985 min~1.8 km
2026-02-26 22:07spill, 16 min, ~2 m³~2.5 km
2026-02-26 22:07spill, 16 min, ~2 m³~2.5 km
2026-02-18 15:57spill, 36 min~4.2 km
2026-02-18 15:57spill, 36 min~4.2 km
2026-02-15 13:30spill, 5 min~4.5 km
2026-02-15 13:30spill, 5 min~4.5 km
2026-01-20 14:43spill, 10 min~4.2 km
2026-01-20 14:43spill, 10 min~4.2 km
2025-11-03 13:25spill, 2 min~2.4 km
2025-11-03 13:25spill, 2 min~2.4 km
2025-02-14 07:33spill, 3 min~3.9 km
2025-02-14 07:33spill, 3 min~3.9 km
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Water quality trend

Maenporth — frequently asked questions

Is it safe to swim at Maenporth today?

Maenporth is currently rated AMBER: Recent rainfall or recent overflow nearby. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Maenporth?

555 storm-overflow spills were recorded near Maenporth in 2025 (EA Event Duration Monitoring), and 17 spill events have been logged nearby so far this year.

What is Maenporth's bathing water classification?

Maenporth 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, 19 outfalls monitored within 5 km.
Risk model
v0.3
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Sample timeline (JSON) · All beaches (CSV)
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