312 IAC 25-6-13 Surface mining; hydrologic balance; water quality standards and effluent limitations

Sec. 13. (a) All surface drainage from the disturbed area shall be controlled through use of a siltation structure, a series of siltation structures, or such alternative techniques as provided in section 16 of this rule before leaving the permit area. (b) Siltation structures and other approved alternate techniques as provided in section 16(b) of this rule shall be operated and maintained to achieve applicable federal and state effluent limitations. (c) For the purposes of this section only, "disturbed area" shall not include those areas in which only diversion ditches, siltation structures, or roads are installed in accordance with sections 5 through 12 of this rule, this section, and sections 14 through 68 of this rule. (d) Siltation structures required by this section shall be constructed in accordance with section 17 of this rule in appropriate locations before beginning any surface mining activities in the drainage area to be affected. (e) Discharges of water from areas disturbed by surface mining activities shall be made in compliance with each of the following: (1) All applicable state and federal water quality laws and regulations. (2) Effluent limitations for coal mining promulgated by the federal United States Environmental Protection Agency set forth in 40 CFR 434.