The First Principle can undertake on-site water testing (sampling) for Legionella and TVC (drinking water) using an independent UKAS Accredited Testing Laboratory. We will receive and interpret the laboratory test results and prepare recommendations for remedial action (including emergency reporting of elevated results).
Action levels following Legionella sampling in hot and cold water systems
Legionella bacteria (cfu/l)
Recommended actions
>100 cfu/l and up to 1000
Either:
- if the minority of samples are positive, the system should be resampled. If similar results are found again, a review of the control measures and risk assessment should be carried out to identify any remedial actions necessary or
- if the majority of samples are positive, the system may be colonised, albeit at a low level. An immediate review of the control measures and risk assessment should be carried out to identify any other remedial action required. Disinfection of the system should be considered
>1000 cfu/l
The system should be resampled and an immediate review of the control measures and risk assessment carried out to identify any remedial actions, including possible disinfection of the system. Retesting should take place a few days after disinfection and at a frequent intervals afterwards until a satisfactory level of control is achieved
Investing in our water testing services can provide you with peace of mind, knowing that you and your loved ones or your employees and customers are not exposed to harmful contaminants in your water supply. It can also help you comply with regulations and avoid costly fines and legal issues that can arise from using contaminated water.
Don't take chances with the quality of your water!
Contact us today to learn more about our water testing services and how we can help you ensure the safety and well-being of those who depend on you.