312 IAC 25-6-107 Underground mining; coal processing waste; dams and embankments; site preparation

Sec. 107. The following requirements apply before coal processing waste is placed at a dam or embankment site: (1) All trees, shrubs, grasses, and other organic material shall be cleared and grubbed from the site, and all combustibles shall be removed and stockpiled in accordance with sections 70 through 106 of this rule, this section, and sections 108 through 132 of this rule. (2) Surface drainage that may cause erosion to the embankment area or the embankment features, whether during construction or after completion, shall be diverted away from the embankment by diversion ditches that comply with section 78 of this rule. Adequate outlets for discharge from these diversions shall be in accordance with section 82 of this rule. Diversions that are designed to divert drainage from the upstream area away from the impoundment area shall be designed to protect public health and safety and the environment. The diversion shall be maintained to prevent blockage, and the discharge shall be in accordance with section 82 of this rule. Sediment control measures shall be provided at the discharge of each diversion ditch before entry into natural watercourses in accordance with sections 76 through 81 of this rule.