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Operation Methods <br />Once topsoil is stripped using dozers, loaders, scrapers and trucks, overburden is then stripped <br />using the same equipment. The gravel is then pushed down a slope using a dozer to a front end <br />loader. The loader takes the gravel to the processing equipment. The fines that are removed by <br />the screening operation are taken to the stockpiles and also to the valley fills. <br />As shown on Map C-2B, the 2009 amendment permit area is divided into four Mining Areas. <br />Mining Area #1 is basically the northern portion of the permit before the 2009 Amendment Area. <br />Mining Area #2 is primarily the southern portion of the permit before the 2009 Amendment. <br />Mining Area #2 contains a small portion of the Stephenson property at the request of the land <br />owner for aesthetic reasons. Mining Area #3 is the northern portion of the additional area as part <br />of the 2009 Amendment and Mining Area #4 is the southern portion of the additional area. The <br />remainder of Mining Area 1 will be mined first because this is the area with the largest amount <br />of backfill needed. Mining Area 3 will then be mined because it also needs a large amount of <br />backfill to become a center pivot irrigated pasture. The remainder of Mining Area 2 will be <br />mined to allow the gas line to be moved. The last area of mining will be the Mining Area 4 <br />which is west of the Gas Well. The mining of the deposit will occur to the limits shown on Map <br />C-2B and will be mined to a slope no steeper than 2H:1 V in the overburden and near vertical <br />through the gravel. The Cugnini Pit will continue to produce a majority of Four Corner's local <br />aggregate demand. No explosives will be used on-site for the mining operation. The distribution <br />of the acreage and corresponding material amounts for the permit area is shown in Table D-1. <br />One important aspect of the plan is to use excess overburden to fill the two pre-existing steep <br />gullies which will make the land more usable after reclamation. These are called valley Fills #1 <br />and #2. <br />Cugnini Pit, November 2009 D-2