Section 213.13. Requirements for sweet corn silage stacks of greater than 150 tons which do not exceed 1200 tons at any one time.

  Sweet corn silage stacks which do not exceed 1200 tons per site at any one time are not required to meet the specifications of s. NR 213.14 if subs. (1) , (2) and (3) are met. This section does not apply to sweet corn silage stacks of less than 150 tons per site at any one time.

(1)   General site criteria. Sites used for stacking of sweet corn silage which do not exceed 1200 tons per site at any one time shall meet the following conditions:

(a) At least 50% of the natural soil in the upper 24 inches passes a No. 200 sieve.

(b) No greater than 5% by weight of the upper 24 inches of the natural soil is retained on a No. 4 sieve.

(c) The plasticity index of the natural soil is equal to or greater than 7.

(d) The stack is located at least 1000 feet from any well serving a community public water supply system and at least 250 feet from any other potable water supply well.

(e) The stack is located at least 500 feet from an inhabited dwelling except that this distance may be reduced with the written permission from the owner and occupants of the residence.

(f) The stack is located at least 5 vertical feet from the groundwater or bedrock.

(g) The base of the stack is located on a site that does not exceed 2% slope.

(h) The stack is located at least 200 feet from the nearest surface water.

(2)   Leachate management. Leachate from the stack shall be collected and landspread in a manner that prevents surface water and groundwater pollution.

(3)   Documentation of compliance. Documentation of compliance with subs. (1) and (2) shall be submitted to the department for review and acceptance prior to use of the site for stacking of sweet corn silage.

History: Cr. Register, June, 1990, No. 414 , eff. 7-1-90.