Crantock water quality
AMBERdesignated 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.
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
Recent storm overflows nearby (30 days)
- 2026-08-25 07:12 · ended~3.4 km
- 2026-08-25 07:30 · ended~3.4 km
- 2026-08-25 10:27 · ended~3.4 km
- 2026-08-25 10:45 · ended~3.4 km
- 2026-08-19 04:42 · ended~4.9 km
In the news nearby
- Why some storm overflow alerts may not mean a spill · 2026-08-25
- South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
- South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
- Welsh Water to pay out £44 . 7m over sewage spills after seriou failures · 2026-06-05
- South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
- South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
- South West Water owner says firm must rebuild trust after parasite outbreak | Dumbarton and Vale of Leven Reporter · 2026-06-10
- South West Water owner says firm must rebuild trust after parasite outbreak · 2026-06-10
Storm-overflow spills near here, by year (EDM)
Recent spills near here (precise, SWW)
- spill, 20 min2026-08-25 · ~3.4 km
- spill, 6 min2026-08-25 · ~3.4 km
- spill, 10 min2026-08-19 · ~4.9 km
- spill, 17 min2026-06-30 · ~3.4 km
- spill, 53 min2026-06-30 · ~3.4 km
- spill, 1 min2026-06-30 · ~3.4 km
- spill, 3 min2026-06-24 · ~3.4 km
- spill, 3 min2026-06-24 · ~3.4 km
Full spill history near Crantock
Download CSVEvery storm-overflow discharge Glanmor has recorded within 5 km of Crantock, newest first.
17 discharge events
| Start | End | Outfall | Distance |
|---|---|---|---|
| 2026-08-25 10:45 | 2026-08-25 11:15 | STREAM (S) | ~3.4 km |
| 2026-08-25 10:27 | 2026-08-25 10:47 | STREAM (S) | ~3.4 km |
| 2026-08-25 07:30 | 2026-08-25 07:45 | STREAM (S) | ~3.4 km |
| 2026-08-25 07:12 | 2026-08-25 07:19 | STREAM (S) | ~3.4 km |
| 2026-08-19 04:42 | 2026-08-19 05:15 | UNNAMED DITCH,TRENANCE LAKE(S) | ~4.9 km |
| 2026-06-30 20:26 | 2026-06-30 20:43 | STREAM (S) | ~3.4 km |
| 2026-06-30 20:00 | 2026-06-30 21:30 | STREAM (S) | ~3.4 km |
| 2026-06-30 19:06 | 2026-06-30 21:15 | STREAM (S) | ~3.4 km |
| 2026-06-30 17:15 | 2026-06-30 18:00 | STREAM (S) | ~3.4 km |
| 2026-06-24 11:44 | 2026-06-24 11:48 | STREAM (S) | ~3.4 km |
| 2026-06-19 23:48 | 2026-06-19 23:58 | UNNAMED DITCH,TRENANCE LAKE(S) | ~4.9 km |
| 2026-06-18 02:26 | 2026-06-18 04:19 | TRIB OF PORTH JOKE | ~1.8 km |
| 2026-05-22 16:31 | 2026-05-22 16:36 | ATLANTIC OCEAN (C) | ~1.0 km |
| 2026-05-03 17:29 | 2026-05-03 18:59 | ATLANTIC OCEAN(T) | ~2.6 km |
| 2026-05-03 13:42 | 2026-05-03 14:14 | RIVER GANNEL (S) | ~0.5 km |
| 2026-03-03 13:37 | 2026-03-03 13:50 | NEWQUAY BAY (C) | ~2.7 km |
| 2026-02-01 22:54 | 2026-02-01 22:58 | CRANTOCK BEACH (C) | ~0.5 km |
24 precise spill records (duration & volume)
| When | Detail | Distance |
|---|---|---|
| 2026-08-25 10:27 | spill, 20 min | ~3.4 km |
| 2026-08-25 07:12 | spill, 6 min | ~3.4 km |
| 2026-08-19 04:42 | spill, 10 min | ~4.9 km |
| 2026-06-30 20:26 | spill, 17 min | ~3.4 km |
| 2026-06-30 19:06 | spill, 53 min | ~3.4 km |
| 2026-06-30 18:50 | spill, 1 min | ~3.4 km |
| 2026-06-24 11:44 | spill, 3 min | ~3.4 km |
| 2026-06-24 11:44 | spill, 3 min | ~3.4 km |
| 2026-06-19 23:48 | spill, 10 min | ~4.9 km |
| 2026-06-19 23:48 | spill, 10 min | ~4.9 km |
| 2026-06-18 02:26 | spill, 113 min | ~1.8 km |
| 2026-06-18 02:26 | spill, 113 min | ~1.8 km |
| 2026-05-22 16:31 | spill, 6 min | ~1.0 km |
| 2026-05-22 16:31 | spill, 6 min | ~1.0 km |
| 2026-05-03 17:29 | spill, 90 min | ~2.6 km |
| 2026-05-03 17:29 | spill, 90 min | ~2.6 km |
| 2026-05-03 13:42 | spill, 32 min | ~0.5 km |
| 2026-05-03 13:42 | spill, 32 min | ~0.5 km |
| 2026-03-07 05:37 | spill, 90 min | ~2.8 km |
| 2026-03-07 05:37 | spill, 90 min | ~2.8 km |
| 2026-03-03 13:37 | spill, 13 min | ~2.7 km |
| 2026-03-03 13:37 | spill, 13 min | ~2.7 km |
| 2026-02-01 22:54 | spill, 3 min | ~0.5 km |
| 2026-02-01 22:54 | spill, 3 min | ~0.5 km |
Water quality — 7-year trend
Water quality improved in 2026: average E. coli was 31% 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 | 26 cfu/100ml | 12 cfu/100ml | 0 |
| 2021 | — | 20 | 28 cfu/100ml | 27 cfu/100ml | 2 of 20 |
| 2022 | — | 20 | 14 cfu/100ml | 17 cfu/100ml | 1 of 20 |
| 2023 | — | 22 | 20 cfu/100ml | 20 cfu/100ml | 2 of 22 |
| 2024 | — | 20 | 28 cfu/100ml | 23 cfu/100ml | 2 of 20 |
| 2025 | good | 20 | 25 cfu/100ml | 19 cfu/100ml | 2 of 20 |
| 2026 | — | 14 | 18 cfu/100ml | 18 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.
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
- Download
- Sample timeline (JSON) · All beaches (CSV)
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