Coal combustion residuals unit; closure permit, assessments required.

Requires the owner or operator of a coal combustion residuals unit (CCR unit) to identify water pollution and address corrective measures to resolve it, evaluate the clean closure of the CCR unit by recycling the ash for use in cement or moving it to a landfill, and demonstrate the long-term safety of the CCR unit. The bill requires the owner or operator of each CCR unit to transmit its assessment to the Department of Environmental Quality (DEQ) and other agencies or legislative committees by December 1, 2017. The bill requires the Director of DEQ to delay the issuance of a permit to close any CCR unit until May 1, 2018, or the effective date of any legislation adopted during the 2018 Regular Session of the General Assembly that addresses the closure of CCR units, whichever occurs later.