Cawsand water quality

GREEN

designated bathing water · · South West Water

Cawsand is a designated bathing water in Cornwall, currently rated GREEN for swimming — No recent overflow, low rainfall, no high samples. Its latest Environment Agency classification is excellent (2025), and 331 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?
Looking good right now
No recent overflow, low rainfall, no high samples.
South West Water status: Maintenance · since 2026-06-27 02:15
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: GREEN No recent overflow, low rainfall, no high samples.

  • Active overflows nearby: 0
  • Recent overflows (48h): 0
  • Rainfall (48h): 0.3 mm

Official EA classification

excellent (2025)

Latest official sample

2026-06-20 — E.coli 36, enterococci 18 cfu/100ml

Latest independent sample

None published

Pollution & environment data

0.3 mm
Rainfall 48h
0.3 mm
Rainfall 7d
17
Outfalls within 5 km
331
Spills (2025, official)
16
Spills 2026 so far (live)
5
Spills last 30d
high 1.22m
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 Cawsand

Download CSV

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

17 discharge events
StartEndOutfallDistance
2026-06-26 00:122026-06-26 00:13CAWSAND BAY (C)~0.3 km
2026-06-06 10:242026-06-06 12:43ST JOHN'S LAKE (ESTUARINE)~4.3 km
2026-06-06 03:232026-06-06 19:37RIVER TAMAR (ESTUARINE)~4.2 km
2026-06-03 09:462026-06-03 10:31RIVER TAMAR (ESTUARINE)~4.7 km
2026-06-02 04:142026-06-02 04:25RIVER TAMAR (ESTUARINE)~4.2 km
2026-05-18 21:222026-05-18 23:13PLYMOUTH SOUND (E)~4.6 km
2026-05-12 09:212026-05-12 09:23RIVER TAMAR (ESTUARINE)~4.8 km
2026-05-12 09:212026-05-12 09:22RIVER TAMAR (ESTUARINE)~4.8 km
2026-05-02 19:362026-05-02 19:38MILLBROOK LAKE~2.1 km
2026-05-02 14:162026-05-02 15:00CAWSAND BAY (C)~0.3 km
2026-05-02 13:472026-05-02 15:35PLYMOUTH SOUND (ESTUARINE)~4.4 km
2026-02-26 23:202026-02-27 03:04CAWSAND BAY ESTAURINE VIA SWS~0.0 km
2026-02-18 11:432026-02-18 11:57RIVER TAMAR (ESTUARINE)~4.2 km
2026-02-13 18:062026-02-13 18:13MILLBROOK VIA SWS~2.2 km
2026-01-29 22:212026-01-29 22:28PLYMOUTH SOUND (ESTUARINE)~4.4 km
2026-01-23 20:402026-01-23 21:34CAWSAND BAY (C)~0.4 km
2025-08-28 23:192025-08-28 23:49HAMOAZE (ESTUARINE)~5.0 km
34 precise spill records (duration & volume)
WhenDetailDistance
2026-06-26 00:12spill, 1 min~0.3 km
2026-06-26 00:12spill, 1 min~0.3 km
2026-06-06 10:24spill, 139 min~4.3 km
2026-06-06 10:24spill, 139 min~4.3 km
2026-06-06 03:23spill, 974 min~4.2 km
2026-06-06 03:23spill, 974 min~4.2 km
2026-06-03 09:46spill, 46 min~4.7 km
2026-06-03 09:46spill, 46 min~4.7 km
2026-06-02 04:14spill, 11 min~4.2 km
2026-06-02 04:14spill, 11 min~4.2 km
2026-05-18 21:22spill, 110 min~4.6 km
2026-05-18 21:22spill, 110 min~4.6 km
2026-05-12 09:21spill, 1 min~4.8 km
2026-05-12 09:21spill, 1 min~4.8 km
2026-05-12 09:21spill, 1 min~4.8 km
2026-05-12 09:21spill, 1 min~4.8 km
2026-05-02 19:36spill, 2 min~2.1 km
2026-05-02 19:36spill, 2 min~2.1 km
2026-05-02 14:16spill, 44 min~0.3 km
2026-05-02 14:16spill, 44 min~0.3 km
2026-05-02 13:47spill, 109 min~4.4 km
2026-05-02 13:47spill, 109 min~4.4 km
2026-02-26 23:20spill, 224 min~0.0 km
2026-02-26 23:20spill, 224 min~0.0 km
2026-02-18 11:43spill, 14 min~4.2 km
2026-02-18 11:43spill, 14 min~4.2 km
2026-02-13 18:06spill, 7 min~2.2 km
2026-02-13 18:06spill, 7 min~2.2 km
2026-01-29 22:21spill, 8 min~4.4 km
2026-01-29 22:21spill, 8 min~4.4 km
2026-01-23 20:40spill, 54 min~0.4 km
2026-01-23 20:40spill, 54 min~0.4 km
2025-08-28 23:19spill, 31 min~5.0 km
2025-08-28 23:19spill, 31 min~5.0 km
Take action — email SWW / your MPGot ill here? Build a reportReport pollution

Water quality trend

Cawsand — frequently asked questions

Is it safe to swim at Cawsand today?

Cawsand is currently rated GREEN: No recent overflow, low rainfall, no high samples. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Cawsand?

331 storm-overflow spills were recorded near Cawsand in 2025 (EA Event Duration Monitoring), and 16 spill events have been logged nearby so far this year.

What is Cawsand's bathing water classification?

Cawsand is classified excellent for 2025 by the Environment Agency.

Data & provenance

Last updated
3 h ago (2026-06-29 14:15 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, 17 outfalls monitored within 5 km.
Risk model
v0.3
Download
Sample timeline (JSON) · All beaches (CSV)
🔗 Embed this beach status on your site

Surf clubs, hotels and councils — paste this into your page to show a live Cawsand status card: