from the fill. To safeguard against leachate infiltration of the ground- 

 water, clay (or a suitable equivalent) should be used to seal the walls 

 and bottom of the prepared fill site [124]. 



In many cases poor landfill or dump siting has created severe water 

 pollution problems because refuse was deposited in the path of surface- 

 water drainage flows. In existing situations of this type, management of 

 surface-water flow is necessary to minimize runoff into and out of the 

 deposited waste. When there is serious existing leakage of contaminant, 

 the polluted groundwater to be treated should be intercepted as near the 

 fill site as possible, before it causes widespread contamination of the 

 aquifer and pollutes the surface bodies that it enters. 



Existing landfills with pollution problems that are not correctable 

 in any practical sense should be identified as nonconforming uses and 

 either removed or sealed up and properly revegetated at the earliest 

 opportunity. 



Other management techniques can lessen the environmental impact of 

 a landfill site. For example, a daily cover of six inches of earth should 

 be applied to reduce odor, windblown debris and hasten the restoration of 

 the landfill site for other uses (see Figure 40). The detoxification and 

 drying of the solid wastes can also be enhanced by planting cover (e.g., 

 pines and suitable brushes) [125]. This is the most rapid way to restore 

 a landfill to productive uses. 



Figure 40. A typical municipal landfill (Source: Reference 125). 



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PORTABLE FENCE TO 

 CATCH BLOWING 

 PAPER 



-ORIGINAL 

 GROUND 



158 



