Dairy Water Testing

All water must be of a safe and sanitary quality to be suitable for use in the dairy and plant operations.  Two testing procedures are used by our laboratory:  

MPN-Coliform MPN (Most Probable Number) Test.  This procedure detects the presence of coliform bacteria by the multiple tube fermentation.  

HPC-Heterotrophic plate count.  This method uses the pour plate method.

Water for milkhouse, milking operations and milk plant operations must be of a safe sanitary quality and practically free of microorganisms that could initiate spoilage. A polluted water supply, used in the rinsing of dairy utensils and containers, may be more dangerous than a similar water supply that is used for drinking purposes only. Bacteria grow much faster in the milk than in water because of the nutritional content of milk. Contamination can occur either directly, through product contact with the water itself, or indirectly, by microbes growing on nutrient residues on incompletely cleaned equipment surfaces.

NETPHD is certified by the Texas Department of State Health Services (DSHS) to analyze dairy water and also coolants (glycol, recirculated cooling water) used in the operation of dairy farms and milk plants.

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Methods Used:

Acceptable Limits: