2007-09-11_REVISION - M1997054 (2)

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The limit of disturbance has been established as follows: 100 feet from the toe of Tallahassee Creek's southern embankment, encompassing a majority of the permitted site west of the sand and gravel pit, and tying into the permit boundary on the south. The disturbance limit for the sand and gravel area is proposed to encompass approximately 175 acres. The land within these setbacks will be considered as affected land since it may contain access roads, stockpiles, maintenance/office buildings, or possibly fuel storage areas. The mining limit setbacks have been established as follows: 100 feet from the toe of Tallahassee Creek on the north, and 250 feet from the Right of Way for the UPRR on the south. These limits of disturbance and mining are illustrated on Exhibit C-1. Information in the current permit regarding access roads, drainage swates and ditches, etc. will remain consistent in the proposed mining plan. Topsoil stockpiles were temporarily placed along the south mining boundary for noise abatement to conform to the original Fremont County conditional use permit. Material stockpiles have been placed along the northern boundary adjacent to Tallahassee Creek and on the east side of the southern boundary, directly south of the processing plant. These stockpiles will also be temporary and will remain until the reclamation activities deem removal is necessary. Power lines currently exist within the mining limit. The approved permit states that mining will not take place within 30 feet of the utility poles. As proposed mining progresses to bedrock, mining will be limited to within 70 feet of the utility poles; although it is anticipated that the power lines will be relocated outside the mining area within the next couple years for mining and reclamation purposes. Granite Quarry The limit of disturbance for the granite quarry is only proposed to change along the west boundary to better facilitate the location of the processing facility. The proposed limit of disturbance has been set about 400 feet west of the current limit. The mining limit has been set 50 feet inside the disturbance limit except along this west boundary. Currently, approximately 10 acres of the granite quarry have been disturbed in the southwest comer of the mining azea in preparation for setting up the processing plant, anticipated to be set up next year. Fuel Storage Area The Division has reviewed the applicant's fuel storage plans and refueling plan, which indicates that all equipment will be refueled at the fuel storage area. The fuel storage area is designed to contain approximately 140% of the 10,000-gallon double-walled storage tank capacity in the event of a spill, until it can be cleaned up and disposed of properly. The fuel storage area is located along the southern permit boundary. The office has been established near the site access as shown on Exhibit C-1. Tallahassee Creek and the 100-Yr Floodplain The previous operator planned the operation so that all activities, except the construction of two bridges, would remain outside of riparian habitats. Two bridges were constructed over Tallahassee Creek to carry a road to the sandstone quarry and the rail spur to the granite quarry. The two bridges over Tallahassee Creek were designed and constructed of concrete abutments with steel girders from used railroad bridges providing the spans. The approaches were F~ant Range Aggregates, LLC- Parkdale Quarry DMC 112 PermitAmem9ment Page 11