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April 21, 2015 C- 1981- 035/King Coal Mine MLT <br />• The King II sediment pond was nearly dry. All culverts, inlets and ditches were inspected, <br />and were found to be clear. Some material from an earthen berm was found to have spilled <br />over into the west clean water diversion ditch; the material was removed by two workers <br />prior to conclusion of the inspection. <br />• The disturbed area north of the water tanks had been re- graded, and the berm was maintained <br />to prevent runoff from entering the adjacent west clear water ditch (Photo 9). Care should be <br />taken that the earthen berm material does not get pushed over into the channel. <br />• The King I West Pond was dry, but the East Pond held a shallow pool of water. It appeared <br />that the water surface was approximately at the level where clean-out of sediment would be <br />required. Please ensure that the pond retains sufficient capacity at all times to contain the <br />design storm event. <br />• Both King I emergency spillways were clear. For the West Pond, the outlet to the primary <br />spillway pipe was partially clogged with sediment. Mr. Bird cleared what he could at the <br />time, but a shovel will likely be needed to complete the job. <br />TOPSOIL Rule 4.06 <br />Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3; Redistribution <br />4.06.4: <br />• The main topsoil stockpile at King II was covered with vegetation and was also surrounded <br />by a protective berm to prevent any loss of the resource. <br />• Soil substitute is stockpiled at King I in the valley upstream of the refuse pile, and is <br />protected by a berm and ditch. <br />PROCESSING WASTE /COAL MINE WASTE PILES Rule 4.10 and 4.11 <br />Drainage Control; Surface Stabilization; Placement: <br />• Placement and compaction of coal mine waste had occurred since the Mar. 31, 2015 <br />inspection (test results were received by the Division on Apr. 22, 2015). <br />• The slash pile had been removed from the top surface of the refuse pile. <br />SUBSIDENCE Rule 4.20: <br />• Mining at King I was concluded in 2008. Most of the surface overlying the underground <br />workings is owned by either Huntington Ranches or the Crawford family. The landowners <br />monitor their own properties on a regular basis, and will notify the operator if any potential <br />new areas of subsidence are identified. <br />• Dan Huntington met us at the King II office, and drove us to the areas of his property that <br />overlie King I. Portions are irrigated by the Huntington Lateral that comes off the Hay Gulch <br />Irrigation Ditch. Mr. Huntington explained that there are 15 or 16 shareholders on the ditch, <br />and that he is the majority shareholder. Shares fall with three different priorities, with three <br />different classes. Class A shares are dated 1898; Class B are 1915; and Class C have a date <br />of 1965. <br />• The Huntington Lateral is generally an open channel. Over the decades, the ditch has <br />become somewhat incised into the land surface (Photo 10). One segment of the ditch was <br />lined by GCC, perhaps 20 years ago, as a preventative measure to protect the ditch from any <br />Number of Partial Inspection this Fiscal Year: 8 <br />Number of Complete Inspections this Fiscal Year: 4 Page 4 of 13 <br />