For swimmers & paddlers · Wed, 06 May 2026
No sampling points have a recent bacterial reading on record. The Environment Agency tests for E. coli at designated bathing-waters mainly during summer; the inland archive has sparse bacterial coverage. 0 sampling points are scoring verified-safe overall (all-purpose mode), but those don't all have bacteria measurements.
Use the postcode finder above
It checks every overflow within 5 km of your address — even spots without a recent bacterial test still tell you about active spills.
Switch to all-purpose mode
Our main safe-spots register shows 0 sampling points with all-green chemistry — useful for paddlers and anglers even where bacterial coverage is missing.
Check designated bathing waters
The Environment Agency tests E. coli at designated bathing waters more frequently. The EA Bathing Water Profiles cover ~420 sites with full season data.
These are storm overflows currently discharging. Don't swim or paddleboard within 5 km downstream until the discharge has stopped and conditions have settled (typically 48 hours after heavy rain).
Severn Trent Water · SVT01836 · spilling for 6 days
Dwr Cymru Welsh Water · Carmel WwTW Storm Overflow · spilling for 3 days
Dwr Cymru Welsh Water · Llanaelhaearn WwTW Overflow · spilling for 10.7 h
Southern Water · SWS00382 · spilling for 10.4 h
Anglian Water · AWS01149 · spilling for 6.4 h
Yorkshire Water · YWS01460 · spilling for 1.9 h
Dwr Cymru Welsh Water · Flint Mountain Storm Overflow · spilling for 1.4 h
Dwr Cymru Welsh Water · Cwrtnewydd WwTW Storm Overflow · spilling for 1.4 h
United Utilities · UUP01577 · spilling for 1.3 h
Anglian Water · AWS01395 · spilling for 1.2 h
Read the full methodology on the About page.