Laserfiche WebLink
0 Feet <br />,; :.:.: <br />10 Feet - ~` ~' ' <br />10 Feet above <br />Static Water Level <br />Static Water Level <br />Concrete <br />Drill Cuttings <br />3/8" Bentonite Chips <br />Bentonite Gel <br />2. The surface plug must be set to ground <br />surface, except in plowed fields, where the <br />plug must be set below plow depth. <br />Total Depth <br />Y <br />w <br />Aquifer <br />Bentonite Gel <br />Coal Bed <br />Bentonite Gel <br />SHALLOW HOLES: (Drilled within <br />stripping Limit) Holes must be backfilled <br />with as many cuttings as possible and surface <br />plug set. <br />DEEP HOLES: (Drilled beyond stripping <br />Limit) All water aquifers and mineable coal <br />beds must be cemented off and surface plugs <br />set. <br />ALL HOLES: <br />1. Stripping Limit is determined by the <br />District Manager. <br />3. Holes must be backfilled with as many <br />cuttings as possible. <br />4. Excess cuttings must be leveled and <br />dispersed evenly over the surface <br />surrounding the hole, or cuttings may be <br />hauled away to an approved disposal site. <br />Note: This diagram is not to scale and actual <br />location of the coal and aquifer may vary <br />greatly. <br />Typical Hole Plugging Diagram <br />