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Alkaline earth carbonates (lime) are high. Magnesium and calcium comprise 94 percent of the <br /> computed base saturation. Reclamation of the pond sediments may include the addition of soil <br /> } amendments such as gypsum or soil sulfur, and the use of soil conditioners such as manures, <br /> composts, or crop residues. If needed, commercial fertilizer will be applied to increase the <br /> levels of nitrogen, phosphorus, potassium, and zinc. The test plots will be planted to annual <br /> li crops adapted to the area. These crops include safflower, dry beans, barley, oats, wheat, and <br /> alfalfa. A typical crop rotation would be oats or barley (winter) and safflower (summer). All <br /> crop residues will be returned to the soil. The yields of these crops will be monitored and <br />'i recorded. This data will be used to guide the reclamation program to its goal. <br /> Reclamation Goal: Reclamation will be considered "attained" when the productivity of the pond <br /> sediments has reached a level comparable to the productivity of the undisturbed soil prior to <br /> mining. <br /> Annual reports will be prepared and submitted to the designated San Joaquin County agency. <br /> In the event that this alternative plan cannot demonstrate that pond sediments can be reclaimed <br /> to a comparable level of agricultural productivity, Brown Sand shall re-evaluate the soil <br /> reclamation plan which may include conservation and stockpiling of topsoil and soil from <br /> selected lower horizons as required to accomplish reclamation of the project. <br /> RECLAMATION ALTERNATIVE B <br /> Soil Removal and Stockpiling - This alternative reclamation plan will stockpile designated soils <br /> as part of the initial phase of mining. This plan removes and stockpiles the uppermost 12 inches <br /> (Ap horizon) of the Zacharias soils. The suitability and depth of the AB horizon to be removed <br /> and stockpiled shall be determined and monitored during the excavation process by a certified <br /> professional agronomist or soil scientist. These soils will be stockpiled separately from the Ap <br /> horizon soils. Stockpiling shall be done in a manner that reduces compaction, controls erosion, <br /> and conserves the natural biota of the soil. No subsurface materials or contaminated soils will <br /> be stockpiled with the surface soils. <br /> The soil to be conserved should be cut in maximum depths per pass in order to minimize <br /> compaction b equipment traffic and to reduce the impact on the soil. Equipment traffic on the <br /> A YP <br /> stockpiles should be minimized. Removal of the soil should not be done under wet conditions. <br /> The moisture content of the soil should be at a level that will minimize dust, but reduce <br /> excessive compaction. <br /> The stockpiled soils will be seeded, as recommended by the certified professional agronomist <br /> or soil scientist, to prevent erosion by wind and water. Water will be applied as needed to <br /> promote germination of the seeds and to maintain a vegetative cover to conserve or enhance the <br /> natural soil biota during the period of time that the soil is stockpiled. <br /> 7 Report Rev.2-0620.95 <br /> AGRO ENVIRONMENTAL SERVICES ■ A Division of Condor Earth Technologies, Inc. Condor <br />