1-855-869-3783 ( 1-855-TowerTest )



No other testing method can compare to the speed, accuracy and low cost of OnSite Legionella Testing's Water and Surface testing protocols.  

Why Test On Site?

Clear and Present Danger

Legionella bacteria

  • Not all legionella outbreaks reach the media. 7,500 cases were reported in 2017 with an estimate of more than 500,000 as the true number.
  • There has been a 500% increase in reported legionella cases since 2000.
  • More than 30% of all cooling towers are contaminated with legionella.
  • There is a 10% chance of fatality if people get sick from legionella.
  • The average Legionnaires case settlement exceeds $2.5 million.

Rigorous Accurate Testing

Microscope viewing a slide

  • It is important to test water-using systems to ensure biological control.
  • Plate counts suffer from over 60% false negatives due to sample degradation during shipping. 
  • Plate counts can't detect VBNC (Viable But Non Culture-able) forms of legionella which are still capable of causing illness and death.
  • Independent testing assures that your results are accurate and your system stays clean and free of disease.

Fast Inexpensive Results

OnSite Legionella Testing Fast Test Strip

  • Lab / Plate tests take 14 - 21 days to return results and costs $ 150 per test.
  • PCR / Lab Tests take  2 - 4 days and costs $300 per test.
  • PCR tests done on site take 45 minutes and costs $200 per test PLUS $7K investment in PCR equipment.
  • OSLT gives you reliable results in 25 minutes and only costs $100 per test. Recommendations for treatment and a formal report issued within 24 hours with contract for site visit or annual agreement.

OnSite Legionella Testing stands out from the competition.

The Facts

OnSite Legionella Testing has a super simple test that you or your staff can administer and it gives you results in just 25 minutes. That means you can resolve the problem—effectively eliminating risk for your operation, employees and guests—before you'd even get the results from other testing methods.

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OnSite Legionella Testing

1-855-869-3783 ( 1-855-TowerTest )