Monthly watchdog
Cornwall sewage report card
October 2026 — recorded storm-overflow activity across Cornwall.
3304
Spill events this month
373
Outfalls that spilled
+148%
vs previous month
1333
Previous month's events
In October 2026, Glanmor recorded 3304 storm-overflow spill events across Cornwall from 373 separate outfalls. That's 148% more than the previous month. Figures are from South West Water's near-real-time monitoring and may be revised.
Worst offenders this month
| # | Outfall / receiving water | Spill events |
|---|---|---|
| 1 | RIVER TORRIDGE | 89 |
| 2 | RIVER KENSEY (S) | 83 |
| 3 | TRIB OF LITTLE MERE RIVER | 60 |
| 4 | TRIBUTARY OF RIVER TORRIDGE(S) | 51 |
| 5 | PLYMOUTH SOUND/PLYM ESTUARY(E) | 44 |
| 6 | ST NEOT RIVER | 40 |
| 7 | STONEHOUSE CREEK VIA SWS (EST) | 37 |
| 8 | TRIB OF RIVER TORRIDGE | 34 |
| 9 | RIVER FOWEY ESTUARY (E) | 32 |
| 10 | SURFACE WATER DRAIN TO CHYANDR | 29 |
See the worst-polluters leaderboard for annual totals, or download the data.
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