Cooling Tower Water Treatment and Legionella Inspection Log

Inspection log for cooling tower water chemistry, biocide dosing, and biological testing to support Legionella risk management and routine compliance checks.

Inspection Details

• Inspection date and time recorded
• Cooling tower / asset ID identified
• Inspector name and role recorded
• Weather or operating conditions noted

Water Chemistry Verification

• System pH within site acceptable range
• Conductivity within site acceptable range
• Oxidizing residual measured and within target
• Water appearance acceptable
• Visible scale, corrosion, or fouling observed
• Makeup water and blowdown controls operating normally

Biocide Dosing and Chemical Feed

• Primary biocide dose recorded
• Secondary or alternate biocide dose recorded
• Chemical feed pump operating and primed
• Chemical containers labeled and secured
• SDS available for all treatment chemicals used
• PPE used during chemical handling

Legionella Monitoring and Biological Testing

• Legionella sample collected per site procedure
• Sample date and chain-of-custody documented
• Laboratory result received
• Biofilm, slime, or microbial growth observed
• Legionella control plan reviewed and current

Equipment Condition and Safety

• Access to tower basin, fill, and drift eliminators unobstructed
• Leaks, unusual vibration, or abnormal noise observed
• Guards, covers, and panels in place
• Area free of slip, trip, and electrical hazards