Water quality at designated bathing water sites in Wales is assessed
by Natural Resources Wales. From May to September, regular assessments measure
current water quality, and at a number of sites daily pollution risk forecasts are issued.
Annual ratings classify each site as excellent, good, sufficient or poor
based on measurements taken over a four year period.
Information about bathing water quality in other countries in the UK
can be found here:
England (EA), or
Northern Ireland (DAERA)