High quality in groundwater: essential for perfect drinking water

With professional sampling and accurate laboratory analysis, our water experts at WESSLING guarantee the continuous control of our groundwater. In this way, we make an important contribution to securing the drinking water supply.

WESSLING analyses groundwater and so makes a contribution to high drinking water quality.

Before groundwater deposits are treated to drinking water, WESSLING checks the quality within the framework of the raw water guidelines of the German federal states. Our experts use the latest analytical techniques and software to be able to reliably detect pollutants such as pesticide metabolites or pharmaceutical residues.

If groundwater contamination is present, they also prepare well-founded assessments and customised remediation strategies.

Accredited* groundwater sampling for companies and authorities

River water that can be tested at WESSLING

WESSLING is accredited* and notified for groundwater sampling. Our qualified samplers are available nationwide for accredited* sampling. With their special equipment, they can take groundwater samples from a depth of up to 150 metres.

All relevant data and parameters are recorded by our online-supported groundwater sampling - for example the course of pH value, electrical conductivity, temperature, lowering of groundwater level and amount of water pumped off.

Our services


  • Use of duly adapted sampling systems with groundwater measuring up to a depth of 150 metres
  • Sampling system with online support
  • Collection and in-situ purification of potentially polluted groundwater by mobile purification units


  • Full spectrum of the microbiological and chemical parameters of the German Drinking Water Ordinance (TrinkwV)
  • Wide-ranging portfolio of micropollutant analysis services
  • Range of over 350 different herbicides and biocidal products
  • Assessment of test findings based on local and national legislation

Find out more about our consulting services in the areas of groundwater monitoring, remediation of polluted groundwater supplies, hydrogeology and data management.

Testing laboratory accredited by DAkkS according to DIN EN ISO/IEC 17025:2018. The accreditation only applies to the scope of accreditation listed in the certificate attachment [D-PL-14162-01-00].

Your contact for groundwater

We will be happy to support you.

Kai Dexheimer
Wasser ist die Lebensgrundlage Nummer 1

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Seminars and training


In our seminars and training courses we pass on our know-how: benefit from the knowledge and experience of our experts.

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Seals and certifications

Let us advise you if you plan the certification of your company according to a recognized quality standard or would like to have your product awarded a seal.

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