Bathing water quality

Bathing water quality

Check water quality near you.


Bathing water quality in Wales has improved significantly over the past two decades.

It’s our job to work with government, bathing water controllers, local authorities and businesses to maintain and improve bathing water quality in Wales.

How we monitor bathing water quality

There are 103 bathing waters in Wales. In 2016 each one will be tested at least 12 times; immediately before and throughout the season from 15 May to 30 September. The results are used to assess compliance with the directive's standards. As 2015 was the first year that the stricter standards set in the revised directive were applied in Wales, our designated bathing waters must now achieve even tougher water quality targets.

The Bathing Waters classifications became an Official Statistic for Natural Resources Wales in 2016, with the publication of the ‘Bathing Waters in Wales 2015’ report. This report presents the results of the 2015 bathing water monitoring. It discusses situations at individual bathing waters which had an impact on water quality and the improvement actions that can be taken.

Please note that this report was pre-announced on the gov.uk statistics release calendar for publication on the 3rd May 2016, however due to a delay with operational processes, the report was published on the 4th May 2016.

The breach report explaining this delay can be accessed via this link.

What’s the quality of the bathing water near you?

Each bathing water is unique. To help you make an informed decision about where to swim, we have produced a detailed bathing water profile for each bathing water in Wales.

Each bathing water profile includes:

  • a description of the beach and surrounding area
  • rivers and streams feeding into the site
  • details about how we manage pollution at the site

Being in the water at beaches is fun but there are health risks. Health risks may be higher in waters which fail European standards.

Check bathing water quality on our Wales bathing water data explorer

Bathing water information for your website

The Bathing Water Widget Designer allows people to customise a live feed of water quality data for a given bathing water site, or all of the sites in a given area, and display that feed onto their website.

Get the Bathing Water Widget Designer for your website.

What are the top five sources of bathing water pollution?

  1. Pollution from sewage – bacteria from sewage can enter our waters as a result of system failures or overflows or directly from sewage works
  2. Water draining from farms and farmland – manure from livestock or poorly stored slurry can wash into rivers and streams resulting in faecal material entering the sea
  3. Animals and birds on or near beaches - dog, bird and other animal faeces can affect bathing water as they often contain high levels of bacteria (much higher than treated human waste)
  4. Water draining from populated areas - water draining from urban areas following heavy rain can contain pollution from a variety of sources, including animal and bird faeces
  5. Domestic sewage – misconnected drains and poorly located and maintained septic tanks can pollute surface water systems

What are the top five things you can do to improve bathing water?

  1. Check your home or business property is connected to the right drainage system. Wrongly connected plumbing could mean that dirty water from toilets, dishwashers and showers could be going directly into your local river or sea
  2. If you’re a dog owner, obey the dog exclusion zones on beaches and pick up after your dog
  3. If your property is connected to a septic tank, make sure it’s registered, check it’s working correctly and keep it maintained
  4. Don’t drop litter, especially food waste, as it encourages birds
  5. Get involved with local beach clean-ups. Many local and national organisations run regular beach cleans
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