2014-01-06_PERMIT FILE - M2014001 (4)

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EXHIBIT G Water Information The proposed permit area is located in Section 21, Township 11 North, Range 67 West of the 6 1 Principal Meridian, Weld County, Colorado. The proposed permit area includes 456.0 acres. Introduction Lone Tree Creek, an ephemeral drainage system, bisects the northern portion of the proposed permit area from northwest to southeast. There are no other surface water resources near the site (see Exhibit C -4, Water Resource Map). The Lone Tree Creek drainage does not have an associated regulatory floodplain within the proposed permit area. Because of the incised nature of the creek, wetland communities appear to be restricted to the channel and immediately adjacent areas, with very steep and rapid transitions to uplands. Several shallow swales and head -cut erosion gullies drain to Lone Tree Creek within the proposed permit area, but no apparent defined channels or wetlands exist within these swales and gullies. Groundwater wells for domestic purposes are within 600 feet of the proposed permit area (see Exhibit C -4, Water Resource Map). However, the proposed mining operation does not anticipate encountering groundwater and no impacts to the surrounding groundwater hydrology are expected. Potential Mining and Reclamation Impacts The proposed mining operation will have no affect on site water resources. Water is primarily used for dust control and is trucked from off -site sources. Water use for washing of product materials is not anticipated. As discussed in previous sections, it is not expected to encounter groundwater during mining and stormwater will not be retained in the active mine pit or in the reclaimed pit area. Water Quality Mining and reclamation operations shall comply with Colorado Department of Public Health and Environment Colorado Discharge Permitting System (CDPS) for stormwater management. A permit will be obtained that includes the continued updating and implementation of a site Stormwater Management Plan designed to prevent the contact and transport of potential contaminants to surface waters by stormwater flows. Due to the absence of large quantities of potential pollutants on site, the mining and reclamation operations will not affect groundwater quality on or off the site. As stated above, mining and reclamation activities shall operate under a CDPS permit and Stormwater Management Plan. The plan provides for regular inspections of potential contaminant areas such as mobile equipment and fuel or lubricant storage locations. Inspections and best management practices are incorporated into the plan to protect both surface and groundwater quality. Connell Carr Pit DBMS 112 Permit Application Page 18