OAR 340-043-0070: Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Purpose

(1) This Division establishes criteria for the design, construction, operation and closure of chemical mining operations and supplements the provisions of OAR 340-043-0000 through 340-043-0060. These criteria are intended to establish the minimum level of environmental protection that is necessary using a combination of performance standards and minimum design criteria. Approval of alternative facilities or methods to achieve an equivalent or better environmental result is allowed as defined in OAR 340-043-0050. (2) Any disapproval of submitted plans or specifications, or imposition of requirements by the Department to improve existing facilities or their operation will be referenced when appropriate, to applicable guidelines or rules.