Pipeline Commissioning

What we do

Chlorination & De-chlorination

Our mobile chemical dosing units operate on a flow proportional ‘fail safe’ system to ensure a safe method of work. Dosing rates from 0.1 to 80 litres/second.

Project Management

From providing the initial planning and preparation to sampling and certification, we professionally project manage your pipeline commissioning works.


We can supply a variety of swabs for different applications. Using our safe and controlled methods of practice when swabbing ensures accuracy and helps to prevent any delays

Pressure Testing

Adhering to industry standards, our method of pressure testing is safe, precise and fully certificated. Our data loggers are accurate to minimum 0.1m.

Water Quality Sampling

Samples are analysed at UKAS accredited laboratories. In addition, on site measurements can also be taken for other parameters, such as chlorine residuals and turbidity.


A fully detailed certificate with times, volumes and results is issued on completion, providing a clear audit trail for our pipeline commissioning services.

Why Choose WSM Associates?

  • Health and safety is our highest priority.
  • All equipment is fully serviced and calibrated.
  • Our field teams are fully trained, experienced and certified with EUSR water hygiene cards.
  • Risk Assessment Method Statement (RAMS) and details of our insurances, including professional indemnity, is provided before starting on site.
  • We have extensive experience of commissioning pipelines, with over 700 km of mains completed to date, with sizes ranging up to 1800mm diameter and over 17 km in length.
Got a question or require further information?

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Accreditations and Registrations