• Twitter
  • Facebook
  • LinkedIn
  • Mail
  • Call Me Back
  • About
  • Knowledge
📞 Call us on 0330 223 31 31
Water Treatment Services
  • Home
  • Water
    • Applications
      • Boiler Water Treatment
      • Cooling Water Treatment
      • Closed Loop Water Treatment
      • Legionella Control
    • Services
      • Cooling Tower Cleaning
      • Cooling Tower Maintenance
      • Chlorine Dioxide Water Treatment
      • Commercial Water Softeners
      • Expert Witness Services
      • Pre-Commission Cleaning
      • Tank Reline & Repair
      • TMV Servicing
      • Water Chlorination & Disinfection
      • Water Leak Detection
      • Water Testing
        • Drinking Water Testing
        • Metals Testing
        • Pool Water Testing
        • BSRIA Closed System Testing
        • SDI Testing & Analysis
        • Trade Effluent Testing
    • Training
      • Water Treatment Training
      • Basic Chemistry of Water
      • Industrial Treatment
      • Pre-Treatment
      • Boiler Treatment
      • Cooling Systems
      • Closed Systems
      • Wastewater Training
      • Advanced Treatments
      • Training Dates 2021
  • Wastewater
    • Metals Testing
    • Trade Effluent Testing
    • Wastewater Training
    • Expert Witness Services
  • Air
    • Ductwork Cleaning
    • Indoor Air Quality
    • Local Exhaust Ventilation Testing
    • Mould Testing
    • Expert Witness Services
  • Energy
  • Legionella
    • Legionella Risk Assessment
    • Legionella Training Courses
      • Legionella Awareness Training
      • Responsible Person Training
      • Water Hygiene Awareness
      • Pseudomonas Training
      • Training Dates 2021
    • Legionella Testing
    • Expert Witness Services
  • Contact
  • Search
  • Menu Menu
You are here: Home1 / Knowledge2 / Environment3 / Managing Recreational Water Quality Standards
Recreational water quality standards

Managing Recreational Water Quality Standards

In this specialist guide the experts at Water Treatment Services look at the management of recreational water quality standards required to ensure the safety of bathers and other people using inland and coastal water sites throughout the UK.

The guide reviews current regulatory standards, identifies typical contaminants and highlights specific indicator bacteria used to evaluate the safety of both fresh and salt water. The guide also considers the need for specialist recreational water testing, the potential health issues caused by contaminated bathing water and additional safety considerations that need to be taken in to account.

What are recreational waters?

Recreational water is a term you’ll often see in government pamphlets, local and seaside water quality reports, and lots of scientific papers. It’s not a term you’ll hear in everyday conversation though, so it’s probably best to start off by giving the proper definition.

Natural or recreational water is any body of water which is used for open water swimming or water sports such as kayaking, water skiing or sailing. Usually it means an inland body of fresh water such as a river, reservoir, lake or pond, but could also refer to coastal waters including estuaries and the open sea.

Many of these natural water bodies are increasingly used for recreational swimming including open water swimming, triathlon and charity swim events. Maintaining good water quality standards to ensure the safety of people using these bodies of water is therefore becoming increasingly important.

Recreational water quality standards

Governments and other official agencies, such as the European Union, draw up legal limits for cleanliness and hygiene for natural and recreational water sites.

Environmental health specialists will give advice on the maximum concentration for types of particular bacteria, microorganisms and other contaminants before the water starts to pose a risk to human health. These limits tend to cover the well-known bacteria such as E .coli, enterococci as well as some lesser known ones.

Legal limits will also cover the levels of contaminants which can be discharged into the air or water courses from industry or agriculture. This covers all sorts of chemicals, including fertilisers and heavy metals such as lead and mercury.

Depending on who draws up the control limits, they might be legally binding or voluntary guidelines. Unlike set legal limits there are usually no fines or other penalties for not following voluntary guidelines.

  • Get your recreational waters professionally tested

Primary and secondary contact with water

Recreational water quality standards are particularly important in areas where people are likely to come in to close contact with water when paddling, open water swimming or boating. Many authorities split these standards further into categories for primary and secondary contact.

Primary contact means that people are going to be putting their heads under the water, either because they are swimming, or there is the potential for falling in from a boat.

Standards for water quality in these types of water are higher than situations where people aren’t swimming or canoeing, but the water is just used for paddling or sailing.

Bathing Water Directive 2006/7/EC

The EU Bathing Water Directive 2006/7/EC is the current standard covering recreational bathing water quality in the UK. It replaced the previous Directive 76/160/EC and deals specifically with natural bathing waters.

It focuses on the presence of two key microbiological parameters, intestinal enterococci and E .coli instead of nineteen set out in the old 76/160/EC Directive. Other parameters are also considered including cyanobacteria or microalgae.

The current Bathing Water Directive calls for the monitoring of bathing waters to be carried out annually with at least four samples taken per season.

The microbiological results can be graded as poor, sufficient, good or excellent, with sufficient being the minimum water quality standard required for swimming. Where the water quality is graded poor, bathing should be prohibited and action taken to improve water quality.

Recreational water testing

It’s important to note that both fresh water and sea water will have a level of naturally occurring bacteria. Most of these bacteria are not damaging to human health, and their presence doesn’t mean that people shouldn’t be swimming in the water.

Similarly, small amounts of certain chemicals in water doesn’t make it unsafe. However, some types of algae including Blue-green algae (Cyanobacteria) might be of concern for human health, and also for pets.

Most tests of natural bathing and recreational water are looking for bacteria and parasites in the water which could indicate faecal contamination. This type of bacteria is only found in the guts of animals, so is a clear indication of sewage in the water. E .coli is the main bacteria of concern in freshwater lakes, rivers, reservoirs and ponds. In salt water, the Enterococci is the main indicator of contamination.

Other common parameters of concern may include Total Coliforms, Faecal Streptocci, Blue-green algae (Cyanobacteria), pH of the water and the presence of metals.

  • Expert laboratory water testing

Additionally, the number of microorganisms in the water is typically affected by a wide range of factors. These include how large the body of water is, and how many people are using it.

Rivers or streams flowing into a lake or the sea might bring contaminants with them. Animals using the water or grazing on surrounding farmland could also be a cause of contamination.

Recommended routine testing for recreational and open water swimming locations would typically include for the following parameters:

  • E .coli

  • Total Coliforms

  • Faecal Streptocci / Intestinal Enterococci

Additionally, other tests may be required for other parameters including:

  • pH

  • Blue-green algae (Cyanobacteria)

  • Metals

Contaminated bathing water can cause illness

People who are swimming or diving into water which is contaminated with high levels of faecal bacteria run a high risk of becoming ill, especially if they swallow some of the water, even if they don’t mean to.

Pollution and bacteria in the water can cause many health conditions including diarrhoea, skin rashes; ear, eye, respiratory and wound infections, along with other diseases.

In mild cases of illness, bathers might develop an upset stomach, with vomiting, diarrhoea or both. On occasion, some people become more seriously ill and can develop conditions such as hepatitis or dysentery.

Anyone has the potential to become ill after contact with contaminated water. However, young children, older people and people with underlying medical problems are more likely to develop illnesses.

Even if people aren’t in the water or swallowing it, there is still the chance they might fall ill. Bacteria and other microorganisms contaminating the water can enter the human body through cuts on the skin or through the nose or ears. Paddling in contaminated water or touching in can also cause skin rashes.

Often, it’s very difficult to measure the presence of bacteria and viruses in larger bodies of water such as lakes, reservoirs or the ocean. If you are aware that sewage is being discharged into a natural body of water however, you can reasonably expect to find potentially nasty bugs such as E .coli, Cryptosporidium, Giardia, Shigella or norovirus.

The testing of natural bathing and recreational water typically involves taking controlled samples of the water and then transporting them to the laboratory for examination by specially trained scientists.

Analysis of the water samples will usually involve using high powered microscopes or growing cultures to try to get an indication of the levels of bacteria present in the water sample.

Testing for indicator bacteria in recreational water

As it’s often difficult to measure and detect some bacteria in natural bathing waters, generally accepted practice is to look for the presence of certain indicator bacteria.

Scientific experience tells us that if we can detect E .coli, coliforms and streptococci bacteria, then these can provide a good general indication of overall bathing water quality and the potential risks to bathers and swimmers. These indicator bacteria include:

  • E .coli
  • Coliforms
  • Streptococci bacteria

Testing methods must take into account the lifespan of any bacteria and other pathogens in the water, given that they will die over time, especially in salt water or under strong sunlight.

  • Expert laboratory water testing

Currently, laboratory water testing takes between 24 and 48 hours, but scientists are working to develop techniques to cut this to under 4 hours. These decreased test times could allow event organisers and managers of recreational bathing water locations to respond even more quickly to problems detected in their water to keep people safe.

So is the water safe to use?

Water which meets recreational water quality standards is generally safe from a bacteriological point of view. It doesn’t necessarily follow however that the water is free from pollution, dirt and other contaminants.

It’s also important to remember that there are often other dangers in natural and open bodies of water such as tides, currents, submerged objects and sudden changes in depth. Water isn’t automatically safe to swim in just because it’s clean.

Monitoring bathing water quality on beaches

In the EU, directives are issued centrally to cover the monitoring and quality of bathing water in all member states, including the United Kingdom (Bathing Water Directive 2006/7/EC).

The aim of the EU guidelines is to monitor the overall quality of the bathing water, and grade the quality and cleanliness. EU member states conduct annual testing of their natural recreational waters, with samples taken four times during the bathing season.

After testing, the quality of the sea water is graded on the following scale:

  • Excellent

  • Good

  • Sufficient

  • Poor

All member states should be striving to meet the “sufficient” classification as a bare minimum for bathing water quality on beaches. If test results indicate that the water quality is poor, then steps should be taken to address this.

Often, that means stopping people from getting into the sea until the quality of the water at the beach has been improved to an acceptable level.

Blue Flag award for beaches

The best known scheme for beaches is the “Blue Flag” awards system. Only beaches where the bathing water is high quality get the right to fly the Blue Flag award.

Beaches wishing to get this accreditation need to not only make sure the sea water quality is good, but must also provide showers, litter bins and stop dog fouling in order to provide as hygienic an experience for bathers and people using the beaches as possible.

Specialist recreational water testing solutions

Water Treatment Services offer a comprehensive range of water testing and laboratory analysis solutions to support owners, operators and managers of natural, open swimming and recreational water sites.

Our experts can provide advice and support to help you identify the most appropriate strategies for the on-going management of your water quality.

Contact Water Treatment Services to find out more about our laboratory water analysis services including microbiological testing, chemical and in-field sampling services.

With offices in London serving the South and South East England, Manchester (North West), Birmingham (Midlands), Bristol (South East England and Wales), Leeds (North and North East) and Glasgow (Scotland), supported by regional teams of specially trained technicians, in-field specialists and consultants we can offer professional, cost effective laboratory analysis solutions across the whole of the UK and internationally.

Contact us today to learn how our expert water management solutions can help you keep your water safe.

Contact Us Today

Further reading…

More information about our expert water quality analysis solutions … here →

REVIEWS

4.8
Rated 4.8 out of 5
Water Treatment Services is rated 4.8 out of 5 stars (based on 97 reviews)

Read our reviews

Submit your review here

Tags: Cryptosporidium, Laboratory water testing, Open Water Swimming, Recreational Water, Swimming Pool Water Testing, Water testing
You might also like
Iron and manganese removal from water supplies Iron & Manganese Removal from Water Supplies
Swimming Pool Water Treatment Guide to Swimming Pool Water Treatment
In-Field Wastewater Testing for Plant Operators In-Field Wastewater Testing for Plant Operators
Blue-green algae testing Blue-Green Algae Testing in Lakes, Ponds & Recreational Waters
Mining wastewater treatment Mining Wastewater Treatment & Water Reuse
How are business water bills and sewerage charges calculated? How are Business Water Bills & Sewerage Charges Calculated?
What is aerobic wastewater treatment? What is Aerobic Wastewater Treatment?
Testing private water supplies Testing Private Water Supplies

Search…

What’s New

  • PWTAG Code of Practice for Pool Water Treatment

    PWTAG Code of Practice for Pool Water Treatment

    In this pool guide the water management experts at …
  • In-Field Wastewater Testing for Plant Operators

    In-Field Wastewater Testing for Plant Operators

    In this article the industrial wastewater specialists at WTS …
  • Guide to Testing Swimming Pools and Hot Tubs

    Guide to Testing Swimming Pools and Hot Tubs

    In this pool guide the water management experts at …
  • How Boiler Water Treatment Affects Performance

    How Boiler Water Treatment Affects Performance

    In this article the industrial steam boiler specialists at …
  • Improving HVAC Energy Efficiency

    Improving HVAC Energy Efficiency

    This article examines how businesses can optimise energy consumption, …
  • What is Waste Acceptance Criteria or WAC Testing?

    What is Waste Acceptance Criteria or WAC Testing?

    In this article the industrial waste specialists at WTS …

REVIEWS

4.8
Rated 4.8 out of 5
Water Treatment Services is rated 4.8 out of 5 stars (based on 97 reviews)
Read our reviews

Free Newsletter

Receive exciting features, news, latest research and special offers! Just add your email address and we'll do the rest.

Contact us

Water Treatment Services

[email protected]

Tel: 0330 223 31 31

© Copyright 2022 - EDG Ltd. Operating as Water Treatment Services
  • Twitter
  • Facebook
  • LinkedIn
  • Mail
  • Home
  • About
  • Careers
  • Privacy
  • Environment
  • Reviews
  • Sitemap
Calculating Trade Effluent Charges Using the Mogden FormulaThe Mogden Formula and trade effluent chargesLegionella in spa poolsControlling Legionella & Other Bacteria in Spa Pools
Scroll to top

This site uses cookies. By continuing to browse the site, you are agreeing to our use of cookies.

OK

Cookie and Privacy Settings



How we use cookies

We may request cookies to be set on your device. We use cookies to let us know when you visit our websites, how you interact with us, to enrich your user experience, and to customize your relationship with our website.

Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.

Essential Website Cookies

These cookies are strictly necessary to provide you with services available through our website and to use some of its features.

Because these cookies are strictly necessary to deliver the website, refusing them will have impact how our site functions. You always can block or delete cookies by changing your browser settings and force blocking all cookies on this website. But this will always prompt you to accept/refuse cookies when revisiting our site.

We fully respect if you want to refuse cookies but to avoid asking you again and again kindly allow us to store a cookie for that. You are free to opt out any time or opt in for other cookies to get a better experience. If you refuse cookies we will remove all set cookies in our domain.

We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.

Google Analytics Cookies

These cookies collect information that is used either in aggregate form to help us understand how our website is being used or how effective our marketing campaigns are, or to help us customize our website and application for you in order to enhance your experience.

If you do not want that we track your visit to our site you can disable tracking in your browser here:

Other external services

We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.

Google Webfont Settings:

Google Map Settings:

Google reCaptcha Settings:

Vimeo and Youtube video embeds:

Other cookies

The following cookies are also needed - You can choose if you want to allow them:

Privacy Policy

You can read about our cookies and privacy settings in detail on our Privacy Policy Page.

Privacy
Accept settingsHide notification only