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adjoining mine. The plan is to then removed the west and south <br /> sides of the permit area so the floor of the site will be approx- <br /> imately 5 feet above the floor of the adjoining mine. This will <br /> leave the building envelope area nearly level and ready for <br /> building. A private road will be built to access the house along <br /> The south side of the permit area. Reclamation Ridge LLC and <br /> Daniel and Donna Hahn have agreed to "day lighting" out the <br /> slopes that would be left on their side of the property line so <br /> an artificial ridge is not left between properties . This will <br /> leave a temporary north facing slope on the Thompson Resource <br /> mine (Hahn property) that would be removed when that area is <br /> mined. The east slope will be graded 3 : 1 and the north undis- <br /> turbed area and slope below the development floor will remain in <br /> its natural state. No blasting will take place in this mine . <br /> A 10-foot mining limit setback line will be established by <br /> grading a ditch parallel to the east permit line . Because of the <br /> way the material will be removed there will be no working face on <br /> the mine. The scrapers will be taking the top of the material <br /> off with each pass so the working area will gradually be lower <br /> with each pass . The east slope will be created as material <br /> removal progresses so that at the end only resoiling and seeding <br /> will be needed on the east slope. <br /> The building envelope (floor) area will have a slight grade <br /> from southeast to the north and west to preserve the historic <br /> drainage pattern across the property. All stormwater on the site <br /> will be directed towards the temporary settlement basin shown on <br /> the Reclamation Map, where it can soak in or be treated before <br /> release. This basin will be removed once reclamation is com- <br /> plete. <br /> The mine will be sloped so all surface water runoff can be <br /> contained on the site until reclamation is complete . The nature <br /> of the material will allow any surface accumulations of water to <br /> soak into the ground. All stormwater on the site will be di- <br /> rected into the active mine area and there will be no discharge <br /> or impounding of water for more then 72 hours . <br /> The hydrologic balance will not be impacted by this grading <br /> operation. Investigation of the ground water table indicates it <br /> is from 8 to 50 feet below the surface depending on the slope of <br /> the land on the property, On the north side near the drainage, in <br /> the area that will not be disturbed, it approximately 8 feet <br /> below the surface as the hillside tapers to the north. On the <br /> southern end at the top of the hill, EH International has a <br /> monitoring well that indicated the groundwater elevation is <br /> approximately 7998 or 12 feet below the proposed floor of the <br /> development envelope. No ground water will be exposed or encoun- <br /> Track 4 Grading Project July 22, 2020 <br /> C-3 <br />