Lime mining wastes as quarry fill.
Lime mining wastes may be placed in a mined out area of a quarry in order to achieve the approximate original elevation. The operator shall transport, backfill and compact where applicable to ensure stability. The reclaimed surface shall be resoiled with a minimum of four feet of non-toxic earthen material and a minimum of six inches of topsoil unless an alternative plan for cover or treatment is approved by the chief based upon a showing by the applicant that the alternative plan is as effective for protecting water quality and sustaining vegetative growth. The graded surface shall be revegetated in accordance with this chapter. All exposed slopes shall be constructed to eighteen degrees from the top of the fill to the bottom of the quarry floor with the appropriate earthen cover.
Five Year Review (FYR) Dates: 02/26/2015 and 05/15/2020
Promulgated Under: 119.03
Statutory Authority: 1514.08, 1514.081
Rule Amplifies: 1514.02, 1514.081
Prior Effective Dates: 08/01/05