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disturbance.The general small and discontinuous nature of the Project footprint should <br /> not impact surface water runoff from average rainfall or other normal weather events. <br /> Where necessary, Best Management Practices(BMPs)will be used to manage drainage <br /> and sedimentation during precipitation and snow melt(e.g., berm installation, sediment <br /> logs, use of swales and water bars).An example of a BMP installation on a typical drill <br /> pad is illustrate in Attachment 3. <br /> Ground and Surface Waters <br /> Tarsis does not anticipate the disturbance of either surface or groundwater during the <br /> proposed Project based on available public data from the Colorado Department of <br /> Water Resources DWR Well Permit Research interface.The project area does not <br /> contain any known wells or other points of ground or surface water documentation.The <br /> nearest known water wells are along the Highway 141 corridor approximately 2.5 miles <br /> to the northeast.The nearest known surface water is Big Gypsum Creek,approximately <br /> 1 mile to the northeast of the closest drill pad (PDH-S1). <br /> It is highly unlikely that significant groundwater is encountered during the project. It is <br /> important to note that drill holes will be permanently abandoned immediately after <br /> completion and prior to rig mobilization to the next drill pad/hole.The permanent <br /> abandonment process is designed to prevent the comingling or interaction of surface <br /> water and groundwater(e.g., bentonite gel from bottom to within 30ft of surface, <br /> followed by an upper cement cap).The limited window during which a drill hole may <br /> remain open during drilling(approximately 1 week) minimizes the opportunity for <br /> interconnectivity between surface and/or groundwater and dramatically limits risk to <br /> water resources in the area. <br /> Water Monitoring <br /> Ongoing visual inspection of water used during the drilling operations will be conducted <br /> regularly to ensure proper capture and flow into the sump and/or cuttings tanks. Each <br /> exploratory boring will be grouted/cemented and plugged after the completion of <br /> drilling in accordance with State regulations. <br /> IV. Operation and Reclamation Measures <br /> 6. Describe how roads will be reclaimed or returned to their pre-prospecting(or better) <br /> condition): <br /> San Miguel County Roads <br /> Discussions with San Miguel County and operating stipulations provided for approval of <br /> the SMC Special Use Permit(SUP) require the following reclamation considerations with <br /> respect to improvements to SMC managed road ways (CR 23R) and temporary <br /> access/spur junctions: <br />