OAR 340-043-0090
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Control of Surface Water Run-On and Run-Off

(1)

Surface water run-on and run-off shall be controlled such that it will not endanger the facility or become contaminated by contact with process materials or loaded with sediment. The control systems shall be designed to accommodate a 100-year, 24-hour storm event, or any other defined climatic event that is more appropriate to the site, and be placed so as to allow for restoration of the natural drainage network, to the maximum extent practicable, upon facility closure.

(2)

All mined materials shall be properly placed and protected from surface water and precipitation so as not to be eroded and contribute sediment to site stormwater run-off or to otherwise contaminate surface water.

Source: Rule 340-043-0090 — Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Control of Surface Water Run-On and Run-Off, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-043-0090.

340‑043‑0000
Purpose and Policies 340‑043‑0010
Definitions 340‑043‑0020
Permit Required 340‑043‑0025
Permit Conditions on Assumption of Liability 340‑043‑0030
Permit Application 340‑043‑0040
Plan and Specifications 340‑043‑0050
Design, Construction, Operation and Closure Requirements 340‑043‑0060
Exemption from State Permit for Hazardous Waste Treatment or Disposal Facilities 340‑043‑0070
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Purpose 340‑043‑0080
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: General Provisions 340‑043‑0090
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Control of Surface Water Run-On and Run-Off 340‑043‑0100
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Physical Stability of Retaining Structures and Emplaced Mine Materials 340‑043‑0110
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Protection of Wildlife 340‑043‑0120
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Design, Construction, and Operation of Heap-Leach Facilities 340‑043‑0130
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Disposal of Mill Tailings 340‑043‑0140
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Disposal or Storage of Wasterock, Low-Grade Ore and Other Mined Materials 340‑043‑0150
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Heap-Leach and Tailings Disposal Facility Closure 340‑043‑0160
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Post-Closure Monitoring 340‑043‑0170
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Land Disposal of Wastewater 340‑043‑0180
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Open-Pit Closure
Last Updated

Jun. 8, 2021

Rule 340-043-0090’s source at or​.us