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• WATER INFORMATION EXHIBIT G <br />1. Pre-Mine Surface Water General Discussion <br />The surface water features within and near the permit area are several irrigation ditches. The <br />primary irrigation ditch runs north to south through the alfalfa fields approximately 180' east <br />from 6175 Road. A central ditch runs from an 8" culvert under 6175 Road across the fields to the <br />eastern slope. A ditch also runs along the south side of the property, along LaSalle Road. The <br />north-south running and central east-west ditches will be removed during mining, and the ditch <br />running along LaSalle Road will be rerouted around the property. No new discharges will be <br />installed, and the mining operation will not lead to any discharges, therefore no NPDES <br />discharge permits are required. <br />2. Groundwater <br />• A groundwater seep was identified east of the central portion of the permit. See Maps C-1 and <br />C-2. The mine will operate above the water table, and no groundwater will be encountered <br />throughout the operation. If any water or excessive dampness is encountered, the area will be <br />backfilled and no more mining in this area will occur near these elevations. <br />3. Wdrology and Sediment Control for Mining <br />Runoff will be contained on the site by topsoil berms as discussed in Exhibit D - Mining Plan. <br />All stormwater will be contained within the site and allowed to seep into the ground. Also, <br />mining will not take place below the water table, therefore no sediment pond will be required. <br />• <br />LaSalle Pit, April 09 G-1