On-Site Risk Assessment & System Mapping
Walk domestic hot/cold water, recirc loops, storage tanks, and cooling towers. Identify hazard points and build the foundation for a Water Management Plan (WMP).
Build a Site-Specific Water Management Plan
Create an ASHRAE 188–aligned program that defines control locations, responsibilities, and verification/validation methods—the core tool for preventing Legionella.
Design Targeted Sampling & Testing
Use the right mix of culture (11–14 days), Legiolert (~7 days), and qPCR (2–48 hours) through certified partner labs; deploy swabs/strips for investigations.
Set Control Limits & Monitoring
Establish temperature and disinfectant residual limits, monitor routinely, and adjust based on data—testing + disinfection + a maintained WMP.
Implement Controls & Remediation
Apply fit-for-purpose methods: chemical disinfection (e.g., chlorine, copper-silver ionization), heat shock where appropriate, and tower hygiene/biocide programs.
Add Point-Of-Use Protection Where Needed
Install validated tap/shower filters as an immediate barrier in high-risk areas; 0.2-micron filtration blocks bacteria at the outlet.
Train, Document, and Support Compliance
Provide clear reports, recordkeeping, and staff education so the program is executable and audit-ready for your facility type.
Trend Results & Continuously Improve
Review data regularly; when positives occur, execute corrective actions (cleaning/disinfection or installing treatment systems) and refine the plan over time.