Crantock water quality

AMBER

designated bathing water · · South West Water

Crantock 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 good (2025), and 151 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
A storm overflow discharged within 5 km in the last 48 hours. 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: 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): 4
  • Rainfall (48h): 1.4 mm

Official EA classification

good (2025)

Latest official sample

2026-08-11 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

1.4 mm
Rainfall 48h
16.5 mm
Rainfall 7d
8
Outfalls within 5 km
151
Spills (2025, official)
17
Spills 2026 so far (live)
5
Spills last 30d
rising 1.28m
Tide now

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

Recent spills near here (precise, SWW)

Full spill history near Crantock

Download CSV

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

17 discharge events
StartEndOutfallDistance
2026-08-25 10:452026-08-25 11:15STREAM (S)~3.4 km
2026-08-25 10:272026-08-25 10:47STREAM (S)~3.4 km
2026-08-25 07:302026-08-25 07:45STREAM (S)~3.4 km
2026-08-25 07:122026-08-25 07:19STREAM (S)~3.4 km
2026-08-19 04:422026-08-19 05:15UNNAMED DITCH,TRENANCE LAKE(S)~4.9 km
2026-06-30 20:262026-06-30 20:43STREAM (S)~3.4 km
2026-06-30 20:002026-06-30 21:30STREAM (S)~3.4 km
2026-06-30 19:062026-06-30 21:15STREAM (S)~3.4 km
2026-06-30 17:152026-06-30 18:00STREAM (S)~3.4 km
2026-06-24 11:442026-06-24 11:48STREAM (S)~3.4 km
2026-06-19 23:482026-06-19 23:58UNNAMED DITCH,TRENANCE LAKE(S)~4.9 km
2026-06-18 02:262026-06-18 04:19TRIB OF PORTH JOKE~1.8 km
2026-05-22 16:312026-05-22 16:36ATLANTIC OCEAN (C)~1.0 km
2026-05-03 17:292026-05-03 18:59ATLANTIC OCEAN(T)~2.6 km
2026-05-03 13:422026-05-03 14:14RIVER GANNEL (S)~0.5 km
2026-03-03 13:372026-03-03 13:50NEWQUAY BAY (C)~2.7 km
2026-02-01 22:542026-02-01 22:58CRANTOCK BEACH (C)~0.5 km
24 precise spill records (duration & volume)
WhenDetailDistance
2026-08-25 10:27spill, 20 min~3.4 km
2026-08-25 07:12spill, 6 min~3.4 km
2026-08-19 04:42spill, 10 min~4.9 km
2026-06-30 20:26spill, 17 min~3.4 km
2026-06-30 19:06spill, 53 min~3.4 km
2026-06-30 18:50spill, 1 min~3.4 km
2026-06-24 11:44spill, 3 min~3.4 km
2026-06-24 11:44spill, 3 min~3.4 km
2026-06-19 23:48spill, 10 min~4.9 km
2026-06-19 23:48spill, 10 min~4.9 km
2026-06-18 02:26spill, 113 min~1.8 km
2026-06-18 02:26spill, 113 min~1.8 km
2026-05-22 16:31spill, 6 min~1.0 km
2026-05-22 16:31spill, 6 min~1.0 km
2026-05-03 17:29spill, 90 min~2.6 km
2026-05-03 17:29spill, 90 min~2.6 km
2026-05-03 13:42spill, 32 min~0.5 km
2026-05-03 13:42spill, 32 min~0.5 km
2026-03-07 05:37spill, 90 min~2.8 km
2026-03-07 05:37spill, 90 min~2.8 km
2026-03-03 13:37spill, 13 min~2.7 km
2026-03-03 13:37spill, 13 min~2.7 km
2026-02-01 22:54spill, 3 min~0.5 km
2026-02-01 22:54spill, 3 min~0.5 km
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Water quality — 7-year trend

Water quality improved in 2026: average E. coli was 31% lower than 2025.

YearEA classificationSamplesE. coli (geo-mean)Enterococci (geo-mean)High readings
20191215 cfu/100ml17 cfu/100ml0
2020326 cfu/100ml12 cfu/100ml0
20212028 cfu/100ml27 cfu/100ml2 of 20
20222014 cfu/100ml17 cfu/100ml1 of 20
20232220 cfu/100ml20 cfu/100ml2 of 22
20242028 cfu/100ml23 cfu/100ml2 of 20
2025good2025 cfu/100ml19 cfu/100ml2 of 20
20261418 cfu/100ml18 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.

Crantock — frequently asked questions

Is it safe to swim at Crantock today?

Crantock 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 Crantock?

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

What is Crantock's bathing water classification?

Crantock is classified good for 2025 by the Environment Agency.

Data & provenance

Last updated
2 h ago (2026-08-26 11:15 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, 8 outfalls monitored within 5 km.
Risk model
v0.4
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Sample timeline (JSON) · All beaches (CSV)
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