Legionella in the News: October 30, 2021 – Washington State Ferries (WSDOT) has found elevated levels of Legionella bacteria in water systems on 6 of their vessels. Agency officials said that WSF has begun testing for Legionella because parts of vessel water systems have sat dormant during the COVID-19 pandemic. see more

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

Clear & Present Danger

  • 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.
  • Legionella is common in hot tubs. Even those “treated” with chlorine / UV. Over 200 cases of legionnaires and 5 deaths have been reported in the last 3 months of 2019 alone due to hot tubs

Rigorous Accurate Testing

  • 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

  • OSLT gives you reliable results in 25 minutes and prices start at $125 per test.
  • Recommendations for treatment and a formal report issued within 24 hours with contract for site visit or annual agreement.
  • OSLT gives you reliable results in 25 minutes and prices start at $125 per test.
  • 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.
Passengers and crew on ships are potentially at risk of exposure to Legionella bacteria contaminating water supplies in the same way as guests and staff in a hotel are at risk. Learn more