Click icons to see if there is a CSO affecting beaches near you
Zoom into the map using the + and - buttons
The quality of bathing water on UK beaches is in decline. Panorama has investigated the combined sewer overflow (CSO) pipes which spill a mixture of storm water and sewage into rivers and onto beaches.
Here, Panorama has mapped the UK beaches listed in the Good Beach Guide which are known to have a CSO nearby.
Explore this map to see if there is a CSO near you in Wales.
Combined Sewage Overspill
Panorama: Britain's Dirty Beaches, BBC One, Monday, 7 September at 8.30pm.
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