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Page 3 • requires secondary containment. Any new tanks will be properly contained. Staff is proposing that mineral excavation activities remain a minimum of 5 ft. above the seasonally high water table. The groundwater contours in this area are approximately 955 ft. to 960 ft. above mean sea level. The approximate average of the current depth of excavation in this area is 970 ft. above mean sea level. This stipulation will further protect groundwater and is also required by MPCA for the landfill's permit. Lastly, staff is proposing that the excavation permit for this operation excludes any wash operation. Water appropriated from this site could increase the lateral movement of contaminants in the groundwater from the original cell of the landfill. 4. Reclamation The proposed reclamation plan for this mineral excavation operation is to use the property for a sanitary landfill. Details regarding final elevations, ground cover, etc., are contained in the landfill's closure . plan. The contours proposed in the landfill's plan are consistent with the city's Environmental Impact Statement on mineral excavation. 5. Other Conditions Other conditions staff is proposing to place on this operation are basically standard for all mineral excavation operations and can be found in the attached conditional use permit. 6. Mining During In their application, Straightline estimates 20 to 30 years of additional mining. Staff believes a more realistic figure to be 5 to 7 years. Recommendation Staff finds the proposed mineral excavation operation consistent with the City's Mineral Excavation Ordinance, the City's Environmental Impact Statement on Mineral Excavation, the City's Conditional Use Permit Ordinance, and other applicable ordinances. We therefore recommend approval of this request under the terms found in the attached conditional use permit. • pc 12-12/bz/stever