Gyllyngvase water quality

AMBER

designated bathing water · · South West Water

Gyllyngvase is a designated bathing water in Cornwall, currently rated AMBER for swimming — A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore. Its latest Environment Agency classification is excellent (2025), and 763 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. Falling tide may draw discharge along the 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. Falling tide may draw discharge along the shore.

  • Active overflows nearby: 0
  • Recent overflows (48h): 5
  • Rainfall (48h): 21.1 mm

Official EA classification

excellent (2025)

Latest official sample

2026-08-17 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

21.1 mm
Rainfall 48h
24.5 mm
Rainfall 7d
23
Outfalls within 5 km
763
Spills (2025, official)
129
Spills 2026 so far (live)
51
Spills last 30d
falling 1.59m
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 Gyllyngvase

Download CSV

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

131 discharge events
StartEndOutfallDistance
2026-08-27 10:222026-08-27 10:29PENRYN RIVER(E)~1.7 km
2026-08-27 02:092026-08-27 02:30PENRYN RIVER~2.5 km
2026-08-27 01:452026-08-27 04:30PENRYN RIVER(E)~1.3 km
2026-08-27 01:322026-08-27 04:00PENRYN RIVER(E)~1.3 km
2026-08-27 00:152026-08-27 01:00PENRYN RIVER(E)~1.3 km
2026-08-25 14:472026-08-25 14:48PENRYN RIVER(E)~1.7 km
2026-08-25 06:262026-08-25 06:28PENRYN RIVER(E)~1.7 km
2026-08-24 07:292026-08-24 07:30PENRYN RIVER(E)~1.7 km
2026-08-23 13:472026-08-23 13:54TRIB OF PENRYN RIVER(S)~3.4 km
2026-08-23 01:002026-08-23 01:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-08-22 02:002026-08-22 02:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-08-21 08:232026-08-21 08:24PENRYN RIVER(E)~1.7 km
2026-08-19 04:452026-08-19 05:45PENRYN RIVER(E)~1.3 km
2026-08-19 04:312026-08-19 05:28PENRYN RIVER(E)~1.3 km
2026-08-16 07:072026-08-16 07:08PENRYN RIVER(E)~1.7 km
2026-08-15 19:152026-08-15 21:00PENRYN RIVER (E)~1.9 km
2026-08-15 18:552026-08-15 20:00PENRYN RIVER (E)~1.9 km
2026-08-14 18:302026-08-14 19:45PENRYN RIVER (E)~1.9 km
2026-08-14 18:082026-08-14 19:32PENRYN RIVER (E)~1.9 km
2026-08-14 04:172026-08-14 04:23TRIB OF PENRYN RIVER(S)~3.4 km
2026-08-13 18:002026-08-13 19:00PENRYN RIVER (E)~1.9 km
2026-08-13 17:312026-08-13 18:44PENRYN RIVER (E)~1.9 km
2026-08-12 21:112026-08-12 21:13PENRYN RIVER(E)~1.7 km
2026-08-12 18:402026-08-12 18:44PENRYN RIVER(E)~1.7 km
2026-08-10 14:162026-08-10 14:22PENRYN RIVER(E)~1.7 km
2026-08-09 13:302026-08-09 16:45PENRYN RIVER(E)~1.7 km
2026-08-09 12:002026-08-09 15:45PENRYN RIVER(E)~1.7 km
2026-08-09 10:152026-08-09 10:45PENRYN RIVER(E)~1.7 km
2026-08-09 09:452026-08-09 10:00PENRYN RIVER(E)~1.7 km
2026-08-08 19:272026-08-08 19:31TRIB OF PENRYN RIVER(S)~3.4 km
2026-08-08 18:002026-08-08 18:30PENRYN RIVER(E)~1.7 km
2026-08-08 17:002026-08-08 17:15PENRYN RIVER(E)~1.7 km
2026-08-08 15:452026-08-08 16:45PENRYN RIVER(E)~1.7 km
2026-08-08 08:002026-08-08 08:30PENRYN RIVER(E)~1.7 km
2026-08-08 07:472026-08-08 08:12PENRYN RIVER(E)~1.7 km
2026-08-07 18:302026-08-07 18:45PENRYN RIVER(E)~1.7 km
2026-08-07 18:122026-08-07 18:34PENRYN RIVER(E)~1.7 km
2026-08-07 15:592026-08-07 16:02PENRYN RIVER(E)~1.7 km
2026-08-04 21:582026-08-04 21:58CARRICK ROADS(E)~3.9 km
2026-08-04 19:522026-08-04 19:55PENRYN RIVER(E)~1.7 km
2026-08-04 19:152026-08-04 20:30PENRYN RIVER(E)~1.7 km
2026-08-04 16:452026-08-04 17:00PENRYN RIVER(E)~1.7 km
2026-08-04 11:452026-08-04 12:45PENRYN RIVER(E)~1.3 km
2026-08-04 11:192026-08-04 12:04PENRYN RIVER(E)~1.3 km
2026-07-30 11:002026-07-30 12:00TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-30 10:272026-07-30 12:00PENRYN RIVER(E)~1.3 km
2026-07-30 10:192026-07-30 10:52TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-30 06:152026-07-30 06:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-30 06:022026-07-30 06:35TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-30 05:152026-07-30 06:00TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-29 00:062026-07-29 00:07TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-28 04:452026-07-28 05:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-28 04:332026-07-28 04:41TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-27 22:152026-07-27 22:17TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-27 21:332026-07-27 22:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-27 17:152026-07-27 18:00TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-27 16:482026-07-27 16:54TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-26 22:092026-07-26 22:13TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-24 21:302026-07-24 21:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-24 21:042026-07-24 21:13TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-23 11:112026-07-23 11:12PENRYN RIVER~2.5 km
2026-07-23 10:152026-07-23 10:45PENRYN RIVER~2.5 km
2026-07-23 10:142026-07-23 10:14CARRICK ROADS(E)~3.9 km
2026-07-23 03:482026-07-23 03:57TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 09:452026-07-22 09:48TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 09:302026-07-22 10:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 08:072026-07-22 08:19TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 03:522026-07-22 03:59TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 01:452026-07-22 02:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-22 01:232026-07-22 01:39TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-21 04:002026-07-21 04:02TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-18 20:452026-07-18 23:15PENRYN RIVER (E)~1.9 km
2026-07-18 20:212026-07-18 20:44PENRYN RIVER (E)~1.9 km
2026-07-17 19:452026-07-17 21:15PENRYN RIVER (E)~1.9 km
2026-07-17 19:052026-07-17 20:35PENRYN RIVER (E)~1.9 km
2026-07-17 09:012026-07-17 09:05TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-17 04:152026-07-17 04:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-17 04:022026-07-17 04:33TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 19:282026-07-16 20:02PENRYN RIVER (E)~1.9 km
2026-07-16 18:452026-07-16 20:15PENRYN RIVER (E)~1.9 km
2026-07-16 11:122026-07-16 11:20TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 10:492026-07-16 10:54TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 10:152026-07-16 11:15TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 05:412026-07-16 05:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 05:302026-07-16 06:15TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 04:102026-07-16 04:17TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 03:302026-07-16 04:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 02:302026-07-16 03:00TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-16 00:562026-07-16 01:01TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-15 21:302026-07-15 21:34TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-15 19:452026-07-15 20:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-15 18:152026-07-15 19:15PENRYN RIVER (E)~1.9 km
2026-07-15 17:362026-07-15 19:01PENRYN RIVER (E)~1.9 km
2026-07-14 17:452026-07-14 18:15PENRYN RIVER (E)~1.9 km
2026-07-14 17:132026-07-14 17:47PENRYN RIVER (E)~1.9 km
2026-07-05 15:222026-07-05 15:24PENRYN RIVER~2.5 km
2026-07-03 20:072026-07-03 20:11TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 19:302026-07-03 19:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 18:302026-07-03 18:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 16:302026-07-03 16:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 14:002026-07-03 14:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 13:272026-07-03 13:41TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 10:422026-07-03 10:43TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 10:302026-07-03 10:45TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 09:302026-07-03 09:31TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 09:002026-07-03 09:15TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 05:152026-07-03 07:30TRIB OF PENRYN RIVER(S)~3.4 km
2026-07-03 04:552026-07-03 07:15TRIB OF PENRYN RIVER(S)~3.4 km
2026-06-27 23:482026-06-27 23:56TRIB OF PENRYN RIVER(S)~3.4 km
2026-06-22 14:532026-06-22 15:16MYLOR CREEK (E)~4.4 km
2026-06-19 23:372026-06-19 23:40CARRICK ROADS(E)~3.9 km
2026-06-19 23:342026-06-19 23:50THE PENRYN RIVER (E)~3.5 km
2026-06-19 23:242026-06-20 01:21PENRYN RIVER(E)~1.3 km
2026-06-17 19:112026-06-17 19:38PENRYN RIVER (E)~1.9 km
2026-06-08 11:032026-06-08 11:11PENRYN RIVER(E)~1.7 km
2026-06-02 07:382026-06-02 15:35PENRYN RIVER(E)~1.3 km
2026-05-19 00:502026-05-19 01:59PRAZE STREAM~4.2 km
2026-05-02 14:042026-05-02 15:19PENRYN RIVER(E)~2.5 km
2026-05-02 13:572026-05-02 15:07PENRYN RIVER~2.5 km
2026-04-22 10:022026-04-22 12:08PENRYN RIVER(E)~0.9 km
2026-03-16 18:482026-03-16 19:38MYLOR CREEK~4.8 km
2026-03-13 10:282026-03-13 10:29PENRYN RIVER(E)~1.8 km
2026-03-04 10:442026-03-04 10:45PENRYN RIVER~1.3 km
2026-03-02 07:302026-03-02 23:55FALMOUTH BAY/TRIB BICKLAND WAT~1.2 km
2026-02-26 22:072026-02-26 22:23FALMOUTH BAY (E)~0.4 km
2026-02-26 13:532026-02-26 13:54MYLOR CREEK~4.8 km
2026-02-18 15:572026-02-18 16:33PENRYN RIVER(E)~2.4 km
2026-02-15 13:302026-02-15 13:34PENRYN RIVER(E)~2.3 km
2026-01-20 14:432026-01-20 14:53PENRYN RIVER(E)~2.4 km
2025-11-03 13:252025-11-03 13:27SWANPOOL (S)~0.9 km
2025-02-14 07:332025-02-14 07:36PENRYN RIVER(E)~1.3 km
140 precise spill records (duration & volume)
WhenDetailDistance
2026-08-27 15:38spill, 0 min~1.7 km
2026-08-27 11:19spill, 8 min~1.7 km
2026-08-27 10:44spill, 1 min~1.7 km
2026-08-27 10:22spill, 7 min~1.7 km
2026-08-27 02:09spill, 6 min~2.5 km
2026-08-27 01:32spill, 96 min~1.3 km
2026-08-25 14:47spill, 1 min~1.7 km
2026-08-25 06:26spill, 2 min~1.7 km
2026-08-24 23:11spill, 2 min~1.7 km
2026-08-24 07:29spill, 1 min~1.7 km
2026-08-23 13:47spill, 6 min~3.4 km
2026-08-22 01:43spill, 2 min~3.4 km
2026-08-21 08:23spill, 1 min~1.7 km
2026-08-19 04:31spill, 57 min~1.3 km
2026-08-16 07:07spill, 1 min~1.7 km
2026-08-15 18:55spill, 65 min~1.9 km
2026-08-14 18:08spill, 85 min~1.9 km
2026-08-14 04:17spill, 6 min~3.4 km
2026-08-13 17:31spill, 73 min~1.9 km
2026-08-13 08:56spill, 29 min~3.4 km
2026-08-12 21:11spill, 2 min~1.7 km
2026-08-12 18:40spill, 4 min~1.7 km
2026-08-10 14:16spill, 6 min~1.7 km
2026-08-09 17:56spill, 26 min~1.7 km
2026-08-09 13:30spill, 29 min~1.7 km
2026-08-09 11:37spill, 82 min~1.7 km
2026-08-08 19:27spill, 4 min~3.4 km
2026-08-08 18:04spill, 2 min~1.7 km
2026-08-08 15:35spill, 0 min~1.7 km
2026-08-08 07:47spill, 26 min~1.7 km
2026-08-08 04:10spill, 2 min~1.7 km
2026-08-07 18:12spill, 22 min~1.7 km
2026-08-07 17:19spill, 11 min~1.7 km
2026-08-07 15:59spill, 3 min~1.7 km
2026-08-04 21:58spill, 0 min~3.9 km
2026-08-04 19:52spill, 3 min~1.7 km
2026-08-04 18:34spill, 71 min~1.7 km
2026-08-04 11:19spill, 46 min~1.3 km
2026-07-30 10:27spill, 20 min~1.3 km
2026-07-30 10:19spill, 33 min~3.4 km
2026-07-30 06:02spill, 33 min~3.4 km
2026-07-30 04:54spill, 14 min~3.4 km
2026-07-30 00:18spill, 2 min~3.4 km
2026-07-29 00:06spill, 1 min~3.4 km
2026-07-28 04:33spill, 7 min~3.4 km
2026-07-27 22:15spill, 3 min~3.4 km
2026-07-27 21:33spill, 14 min~3.4 km
2026-07-27 16:48spill, 7 min~3.4 km
2026-07-26 22:09spill, 4 min~3.4 km
2026-07-24 21:04spill, 9 min~3.4 km
2026-07-23 11:11spill, 2 min~2.5 km
2026-07-23 10:14spill, 0 min~3.9 km
2026-07-23 10:08spill, 6 min~2.5 km
2026-07-23 03:48spill, 9 min~3.4 km
2026-07-22 09:45spill, 3 min~3.4 km
2026-07-22 09:27spill, 3 min~3.4 km
2026-07-22 09:00spill, 0 min~3.4 km
2026-07-22 08:07spill, 12 min~3.4 km
2026-07-22 07:43spill, 9 min~3.4 km
2026-07-22 03:52spill, 6 min~3.4 km
2026-07-22 02:47spill, 35 min~3.4 km
2026-07-22 01:23spill, 15 min~3.4 km
2026-07-21 04:00spill, 2 min~3.4 km
2026-07-18 20:21spill, 23 min~1.9 km
2026-07-17 19:05spill, 90 min~1.9 km
2026-07-17 09:01spill, 3 min~3.4 km
2026-07-17 04:02spill, 31 min~3.4 km
2026-07-16 19:28spill, 34 min~1.9 km
2026-07-16 11:12spill, 8 min~3.4 km
2026-07-16 10:49spill, 5 min~3.4 km
2026-07-16 09:53spill, 21 min~3.4 km
2026-07-16 08:45spill, 4 min~3.4 km
2026-07-16 05:41spill, 5 min~3.4 km
2026-07-16 04:49spill, 40 min~3.4 km
2026-07-16 04:10spill, 8 min~3.4 km
2026-07-16 02:53spill, 52 min~3.4 km
2026-07-16 01:57spill, 20 min~3.4 km
2026-07-16 00:56spill, 5 min~3.4 km
2026-07-15 21:30spill, 4 min~3.4 km
2026-07-15 19:34spill, 2 min~3.4 km
2026-07-15 17:36spill, 85 min~1.9 km
2026-07-14 17:13spill, 34 min~1.9 km
2026-07-05 15:22spill, 2 min~2.5 km
2026-07-03 20:07spill, 4 min~3.4 km
2026-07-03 19:40spill, 1 min~3.4 km
2026-07-03 18:36spill, 58 min~3.4 km
2026-07-03 15:52spill, 23 min~3.4 km
2026-07-03 13:27spill, 14 min~3.4 km
2026-07-03 10:42spill, 2 min~3.4 km
2026-07-03 10:00spill, 7 min~3.4 km
2026-07-03 09:30spill, 1 min~3.4 km
2026-07-03 08:32spill, 19 min~3.4 km
2026-07-03 06:43spill, 23 min~3.4 km
2026-07-03 04:55spill, 80 min~3.4 km
2026-06-27 23:48spill, 7 min~3.4 km
2026-06-27 23:48spill, 7 min~3.4 km
2026-06-22 14:53spill, 24 min~4.4 km
2026-06-22 14:53spill, 24 min~4.4 km
2026-06-19 23:37spill, 3 min~3.9 km
2026-06-19 23:37spill, 3 min~3.9 km
2026-06-19 23:34spill, 16 min~3.5 km
2026-06-19 23:34spill, 16 min~3.5 km
2026-06-19 23:24spill, 117 min~1.3 km
2026-06-19 23:24spill, 117 min~1.3 km
2026-06-17 19:11spill, 26 min~1.9 km
2026-06-17 19:11spill, 26 min~1.9 km
2026-06-08 11:03spill, 8 min~1.7 km
2026-06-08 11:03spill, 8 min~1.7 km
2026-06-02 07:38spill, 477 min~1.3 km
2026-06-02 07:38spill, 477 min~1.3 km
2026-05-19 00:50spill, 69 min~4.2 km
2026-05-19 00:50spill, 69 min~4.2 km
2026-05-02 14:04spill, 75 min~2.5 km
2026-05-02 14:04spill, 75 min~2.5 km
2026-05-02 13:57spill, 70 min~2.5 km
2026-05-02 13:57spill, 70 min~2.5 km
2026-04-22 10:02spill, 127 min~0.9 km
2026-04-22 10:02spill, 127 min~0.9 km
2026-03-16 18:48spill, 50 min~4.8 km
2026-03-16 18:48spill, 50 min~4.8 km
2026-03-13 10:28spill, 2 min~1.8 km
2026-03-13 10:28spill, 2 min~1.8 km
2026-03-04 10:44spill, 1 min~1.3 km
2026-03-04 10:44spill, 1 min~1.3 km
2026-03-02 07:30spill, 985 min~1.2 km
2026-03-02 07:30spill, 985 min~1.2 km
2026-02-26 22:07spill, 16 min, ~2 m³~0.4 km
2026-02-26 22:07spill, 16 min, ~2 m³~0.4 km
2026-02-26 13:53spill, 2 min~4.8 km
2026-02-26 13:53spill, 2 min~4.8 km
2026-02-18 15:57spill, 36 min~2.4 km
2026-02-18 15:57spill, 36 min~2.4 km
2026-02-15 13:30spill, 5 min~2.3 km
2026-02-15 13:30spill, 5 min~2.3 km
2026-01-20 14:43spill, 10 min~2.4 km
2026-01-20 14:43spill, 10 min~2.4 km
2025-11-03 13:25spill, 2 min~0.9 km
2025-11-03 13:25spill, 2 min~0.9 km
2025-02-14 07:33spill, 3 min~1.3 km
2025-02-14 07:33spill, 3 min~1.3 km
Take action — email SWW / your MPGot ill here? Build a reportReport pollution

Water quality — 7-year trend

Water quality in 2026 was broadly level with 2025.

YearEA classificationSamplesE. coli (geo-mean)Enterococci (geo-mean)High readings
2019—310 cfu/100ml10 cfu/100ml0
2020—322 cfu/100ml24 cfu/100ml0
2021—634 cfu/100ml23 cfu/100ml0
2022—1011 cfu/100ml11 cfu/100ml0
2023—1014 cfu/100ml12 cfu/100ml0
2024—1011 cfu/100ml10 cfu/100ml0
2025excellent2011 cfu/100ml11 cfu/100ml0
2026—1510 cfu/100ml11 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.

Gyllyngvase — frequently asked questions

Is it safe to swim at Gyllyngvase today?

Gyllyngvase is currently rated AMBER: A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Gyllyngvase?

763 storm-overflow spills were recorded near Gyllyngvase in 2025 (EA Event Duration Monitoring), and 129 spill events have been logged nearby so far this year.

What is Gyllyngvase's bathing water classification?

Gyllyngvase is classified excellent for 2025 by the Environment Agency.

Data & provenance

Last updated
1 h ago (2026-08-27 15:45 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, 23 outfalls monitored within 5 km.
Risk model
v0.4
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 Gyllyngvase status card: