By-products to be used for ensilage, preferably should be put into silos, but if stacked in the open at factory, the ground on which the stacks are built shall be tiled so as to draw off all water and seepage to prevent soil pollution.
Minn. R. agency 105, ch. 1550, COMMERCIAL CANNERIES, pt. 1550.2040
Statutory Authority: MS s 31.101; 31.36