Drinking water - the most essential ingredient in diets

A functioning drinking water supply is essential for society. Water is the most essential ingredient in diets. With precise analysis and continuous controls, WESSLING ensures that consumable and hygienically perfect drinking water is available.

WESSLING expert checks a wasser sample

It is in the natural interest of municipalities, water suppliers and industry to protect drinking water as the number one ingredient. Our experts support this task with their long-term expertise. As a result, our customers receive detailed and reliable analytical and test reports. After registering for the WESSLING customer portal, they can view and download them online at any time and from anywhere.

Analysis and consulting

Experts take care of suitable samples for the laboratory

On request, our experts will take care of the complete project handling - starting with the selection of the suitable analysis of the samples in our laboratory to the transmission of the test data to the responsible authorities.


  • Extensive spectrum of microbiological and chemical parameters 
  • Legionella management
  • Micropollutants
  • Range of over 350 different herbicides and biocidal products
  • On-call service
  • Evaluation of test results


WESSLING takes a water sample

Drinking water samples are taken by our qualified and experienced specialists. This is essential for effective and reliable analytical results.


  • Use of duly adapted sampling systems (random and direct sampling, stagnation samples, sampling in hot water systems)
  • Sampling of self-sufficient water supply facilities
  • Sampling of bathing water

Equipment and accreditation

In addition to our specialised and interdisciplinary teams, our customers can also rely on the modern equipment of our laboratories. They enable us to provide the complete spectrum of microbiological and chemical parameters of the "order of january the 21st, 2010" (Arrêté du 21 janvier 2010).

These high quality standards are the prerequisite for WESSLING being accredited for the sampling and analysis of drinking water (NF EN ISO/IEC 17025). Our Paris' laboratory is also approved as drinking water testing laboratories in accordance with the "order of january the 21st, 2010" (Arrêté du 21 janvier 2010) from the French Ministery of Health.

Our range of services in the field of drinking water

Consumable drinking water has to meet several criteria: it must be colourless, odourless, free of pathogens and must not be harmful to health. Our range of services meets these requirements - for security of supply and your company's success.

Your contact to us

We will be happy to support you.

Bottom of a pool

Comprehensive analysis and consulting

Legionella management at WESSLING

Our specialists provide the entire spectrum of legionella analysis - for drinking water plants of all sizes as well as for ventilation systems.

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Chimical tests are made

PFAS analysis

We carry out PFAS analyses in our independent laboratories. In particular, we are able to detect the 20 molecules of the European Directive of 16/12/2020.

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