Why test for Legionella Bateria? The benefits of routine testing for Legionella far outweigh the potential health and legal risks involved in not testing:
- Preventing potential and sometimes fatal outbreaks of Legionnaires Disease.
- Safeguarding the health and well-being of building tenants and visitors.
- Providing documented historical data to protect building owners and managers against litigation in the event of an outbreak.
- Supplementing a comprehensive maintenance program when performing HVAC preventive maintenance.
We offer a comprehensive range of AIHA accredited Legionella testing, sampling and microbiological laboratory analysis services capable of undertaking an extensive range of analyses.
Legionella Culture & Direct Fluorescent Antibody (DFA)
This test provides a total heterotrophic bacterial count and identification of Legionella bacteria, both viable (via culture) and nonviable (via DFA). A screen for Pseudomonas aeruginosa is included free for all decorative fountain, whirlpool, spa, and swimming pool samples.
Turnaround: 7-10 days
*Each sample includes: Risk Summary, Report, & Recommendations
Rapid Legionella Screen* (4 day)
This test provides a total heterotrophic bacterial count and identification of Legionella bacteria, both viable (via culture) and nonviable (via DFA). A screen for Pseudomonas aeruginosa is included for all decorative fountain, whirlpool, spa, and swimming pool samples.
Turnaround: 4 days from receipt
| Method* |
“Gold Standard” - Center for Disease Control (CDC) Elite approved testing procedure for the isolation and confirmation of Legionella bacteria in environmental samples (water or swab)
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| Sample Analysis |
Aerobic Heterotrophic plate count
Viable Legionella detection and confirmation as being:
1. Legionella pneumophila Serogroup 1
2. Legionella pneumophila Serogroup 2-14
3. Legionella Species
DFA Analysis - Indicating presence of living and/or dead Legionella at test site
(indicating site history)
Legionella - Total Bacteria Ratio
(another assessment of resistance to current biocide treatment)
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| Legionella Confirmation |
Legionella isolates confirmed by direct monoclonal antibody stain
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| Laboratory Report |
Interpretations and Recommendations Provided
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| Limit of Sensitivity |
<1 CFU/ml for potable water samples
10 CFU/ml for cooling tower samples
20 CFU/ml for swab samples
(CFU - Colony Forming Unit)
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| Additional Analysis |
Samples may also be analyzed for other bacteria such as Pseudomonas aeroginosa screen or Microbial Corrosion Screen
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