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M1NiNG PLAN <br />1. General Plan- Mining <br />EXHIBIT D <br />Map C-1 allows the mining that took plane prior to.newsurveyingin the Spring of 2003. T}le <br />gravel zone is approximately 30 feet thick in a alluvial deposit and is overlain by soil 0-6 inches <br />thick. Test holes from Fall of 2003 show increasing overburden to the north and south. These <br />tests also show the gravel to be deeper than the original mining. Another 10-15 feet of grauel can <br />be taken in the existing mining azea. The gravel deposit will be mined to the shale bedrock-layer <br />or to the water table. Mining will stop when ground water is encountered, and all exposed <br />groundwater will be promptly buried using overburden or excess fines from processing. The <br />gravels are Florida gravels of the Pleistocene age underlain by shales and sandstones of the <br />Eocene Age, The permit azea is divided into two pits and the staging azea for all future mining. <br />The North Pit as labeled in Map C-2 will be mined first in 2 phases progressing northwazds. The <br />South Pit will progress towards the west as can be seen in Map C-2. The mining of the deposit <br />will occur to the limits shown on Map C-2 and will be mixed to a slope no steeper than 1H:1 V. <br />The maximum total tonnage sold from the site in any one calendar year will be 360,000 tons, <br />though the expected annual average is 261,000 tons. The expected annual average is based on <br />current Four Corners Materials production rates. Once the Cugnini Pit begins full production the <br />pit will produce a majority of Four Comer's local aggregate demand. The raw material will be <br />processed and then sold in three main products: 3/4" gravel, 3" gravel and Asphalt. A break down <br />of the product tonnages and mined tonnages can be seen in table D-1. No explosives will be used <br />on-site for the mining operation. <br />Avera a Annual Product Distribution <br />roduct Tons Sold % Reject Rate (Naturals) Tons Mined <br />phalt 142,000 46ro/o 262,96 <br />ached Sand and Gravel 76,000 32% 111,76 <br />er Aggregate 43,000 10% 47,77 <br />oral 261 000 36% 422 50 <br />Table D-i <br />Cugnini 12/03 6 <br />