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Water testing limits for microbiological specifications

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maria_esparza-

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Posted 14 March 2025 - 10:44 PM

Hello there! I tried looking through the forums for a guide, but am still having a hard time navigating IFSQN.

 

I am trying to vamp up our EMP and am stumped. I do not know how to determine microbiological specifications for water testing. I plan to do it annually, since we only use water for cleaning equipment and utensils. This water source comes from two 3 compartment sinks.

 

Floors are from another water source in the facility, should I test this as well?

 

I have the following specifications from my previous company (a previous coworker provided the info), but how do I know if this is correct or if it applies to my current company?

 

Microbiological Specifications
APC: <500 cfu/mL
Yeast & Mold: <100 cfu/mL
Colfiroms: <10 cfu/mL
Salmonella: Negative
E.Coli: Negative
 
Is this universal? Where do I even begin to research this?
 
TIA!

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Slab

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Posted 15 March 2025 - 05:54 AM

Hi Maria,

 

This is a compliance issue established with minimum standards by the EPA, and should never be exceeded:

 

https://www.epa.gov/...gulations#Micro

 

https://www.epa.gov/...ter-regulations

 

Assuming you are on municipal supply most compliance is managed by your local PWS authority. If you are well water it gets a bit more complicated. 3rd parties may want to see point-of-use sampling inside plant distribution as part of a thorough EMP along with backflow management. 


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maria_esparza-

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Posted 14 April 2025 - 03:52 PM

I appreciate your reply! Thank you:)


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