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Ground Water Contamination <br /> Disturbing 393 acres provides an entry point for contamination of the surface waters and <br /> ground water. Because of fracturing and faulting the surface and ground water are <br /> probably in communication to some degree. Any contaminates could easily permeate the <br /> localized hydrodynamic system. <br /> Lead contamination <br /> • Larsen Well 185659 <br /> o Not potable water source because of lead <br /> 0 1800 feet from North Ridge Excavation <br /> o Removal of 100,000,000 tons of stone provides opportunity for pyrite in <br /> waste rock to oxidize mobilize the lead allowing it to enter and contaminate <br /> surface and ground water <br /> • If well 185659 has a sufficient lead levels to contaminate groundwater to levels <br /> making not potable how can contamination possibly be controlled 1800 feet down <br /> gradient where 100,000,000 bank cubic yards of material are going to be removed? <br /> Equipment leaks and spills <br /> • With the proposed 22 pieces of heavy equipment the opportunity for spills and <br /> leaks of diesel,motor oil,or hydraulic fluid to contaminate the ground water and <br /> surface water are an additional risk to the area's well water quality. <br />