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Item 8r

GRADE "A" DAIRY FARM WATER SUPPLIES

REQUIREMENT: Water for milkhouse and milking operations shall be from a supply
properly located, protected and operated and shall be easily accessible, adequate
and of a safe, sanitary quality.

Public health reason: A dairy farm water supply should be accessible in order to
encourage its use in ample quantity in cleaning operations; it should be adequate so
that cleaning and rinsing will be thorough; and it should be of a safe, sanitary quality
in order to avoid contamination of milk utensils.
A polluted water supply, used in the rinsing of the dairy utensils and containers, may
be more dangerous than a similar water supply which is used for drinking purposes
only. Bacteria grow much faster in milk than in water and the severity of an attack of
a given disease depends largely upon the size of the dose of disease organisms
taken into the system. Therefore, a small number of disease organisms consumed in
a glass of water from a polluted well may possibly result in no harm; whereas, if left
on milk utensil, which has been rinsed with the water, they may after several hours
growth, in the milk, increase in such numbers as to cause disease when consumed.

This item is deemed to be satisfied when:

1. The water supply for the milkhouse and milking operations is approved as
safe by the state water control authority, and in the case of individual water
systems, complies with the specifications outlined in Appendix D and the
bacteriological standards outlined in Appendix G, of the PMO.

2. No cross connections exists between a safe water supply and any unsafe or
questionable water supply, or any other source of pollution.

3. There are no submerged inlets through which a safe water supply may be
contaminated.

4. The well or other source of water is located and constructed in such a manner
that neither underground nor surface contamination from any sewerage
system, privy, or other source of pollution can reach such water supply.

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