OAR 340-043-0170
Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Land Disposal of Wastewater

(1)

To qualify for land disposal of excess wastewater, the permit applicant shall demonstrate to the Department that the process has been designed to minimize the amount of excess wastewater that is produced, through use of water-efficient processes, wastewater treatment and reuse, and reduction by natural evaporation. Excess wastewater that must be released shall be treated and disposed of to land under the conditions specified in the permit.

(2)

A disposal plan shall be submitted as part of the permit application that, at a minimum, includes:

(a)

Wastewater quantity and quality characterization;

(b)

Soils characterization and suitability analysis;

(c)

Drainage and run-off characteristics of the site relative to land application of wastewater;

(d)

Proximity of the disposal site to groundwater and surface water and potential impact;

(e)

Wastewater application schedule and water balance;

(f)

Disposal site assimilative capacity determination;

(g)

Soils, surface water and groundwater monitoring plan;

(h)

Potential impact on wildlife or sensitive plant species.

(3)

The Department will evaluate the disposal plan and set site-specific permit conditions for the wastewater discharge.

Source: Rule 340-043-0170 — Guidelines for the Design, Construction, Operation and Closure of Chemical Mining Operations: Land Disposal of Wastewater, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-043-0170.

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 340-043-0170’s source at or​.us