OAR 340-043-0050
Design, Construction, Operation and Closure Requirements


(1)

All chemical process and waste disposal facilities and facilities for mixing, distribution, and application of chemicals associated with on-site mining operations; ore preparation and beneficiation facilities; and processed ore disposal facilities shall be designed, constructed, operated and closed in accordance with the guidelines contained in this Division.

(2)

Alternative facilities and methods of control of wastes and potential pollutants may be approved by the Department if the permit applicant can demonstrate that the alternate facilities and methods will provide environmental protection that is fully equivalent or better than that achieved by the facilities specified in the guidelines in OAR 340-043-0070 (Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Purpose) to 340-043-0180 (Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Guidelines for Open-Pit Closure). The burden of proof of fully equivalent protection lies with the permit applicant. Written approval of any alternative by the Department shall be evidence of acceptance as equivalent or better level of environmental protection.

(3)

A groundwater monitoring plan shall be submitted to, and be approved by the Department. Monitoring wells shall be installed for detection of groundwater contamination as required by OAR 340, division 40, unless the Department concludes in writing that the hydrogeology of the site or other technical information indicates that an adverse impact on groundwater quality is not likely to occur.

(4)

The Department may, in accordance with a written compliance schedule, grant reasonable time for existing facilities to comply with these rules.

Source: Rule 340-043-0050 — Design, Construction, Operation and Closure Requirements, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-043-0050.

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 340-043-0050’s source at or​.us