Oregon Administrative Rules
Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
Division 43 - CHEMICAL MINING
Section 340-043-0140 - Guidelines for Disposal or Storage of Wasterock, Low-Grade Ore and Other Mined Materials
Universal Citation: OR Admin Rules 340-043-0140
Current through Register Vol. 63, No. 3, March 1, 2024
The permittee shall determine the acid-producing and metals-release potential of the wasterock, low-grade ore or other mined materials by acid/base accounting and other appropriate static and dynamic laboratory tests. If the mined materials are shown to be potentially acid forming, or capable of releasing toxic metals, the permittee shall submit a plan for correction and disposal for Department approval prior to permanently placing the materials.
Stat. Auth.:ORS 468.020
Stats. Implemented:ORS 468.020
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