Cooling Tank Water Testing

Hello,

I am curious to hear what other food manufacturers do for testing their cooling tower water. From what I see, the most common testing is Legionella and HPC with limits set by CDC. As it is not food contact, would it be recommended to also do yeast, mold and pathogens? 

Looking forward to your responses. 

Liza H. 

If it is not food contact, what is the concern here? 

Legionnella is a health and safety risk not a food safety risk.  I don't believe any indicator organisms will be required but to be honest this has always been a role for EHS in organisations I've worked in (who often subcontract inspection and testing) so I've never been directly involved.

If it is not food contact, what is the concern here? 

It's required under state regs iirc. I had to test mine annually at a third-party lab, and quarterly in house for pH and..something else. I didn't chime in because it's been over 10 years and I can't remember what the heck I tested it for.

Pretty sure it was state licensing and regulatory affairs that required it, and they had their actual requirements for testing listed. Might want to start there OP.