Idaho Admin. Code r. 20.03.02.111

Current through September 2, 2024
Section 20.03.02.111 - COMPLETION OF PERMANENT CLOSURE
01.Implementation of a Permanent Closure Plan. Unless otherwise specified in the approved permanent closure plan, an operator must begin implementation of the approved permanent closure plan as follows:
a. Within two (2) years of the final addition of new cyanide to the ore process circuit; or
b. If the product recovery phase of the cyanidation facility has been suspended for a period of more than two (2) years.
02.Submittal of a Permanent Closure Report. The operator must submit a permanent closure report to the Department for review and approval. A permanent closure report must be of sufficient detail for the directors of the Department and DEQ to issue a determination that permanent closure, as defined by Subsection 010.15 of these rules, has been achieved. The permanent closure report shall address:
a. The effectiveness of material stabilization;
b. The effectiveness of the water management plan and the adequacy of the monitoring plan;
c. The final configuration of the cyanidation facility and its operational/closure status;
d. The post-closure operation, maintenance, and monitoring requirements, and the estimated reasonable cost to complete those activities;
e. The operational/closure status of any land application site of the cyanidation facilities;
f. Source control systems that have been constructed or implemented to eliminate, mitigate, or contain short- and long-term discharge of pollutants from the cyanidation facility, unless otherwise permitted;
g. The short- and long-term water quality trends in surface and ground water through the statistical analysis of the existing monitoring data pursuant to the ore-processing by cyanidation permit;
h. Ownership and responsibility for the site upon permanent closure during the defined post-closure period;
i. The future beneficial uses of the land, surface and ground waters in and adjacent to the closed cyanidation facilities; and
j. How the permanent closure of the cyanidation facility complies with the Resource Conservation and Recovery Act, Hazardous Waste Management Act, Solid Waste Management Act, and appropriate rules.
03.Review of a Permanent Closure Report. The Department will immediately forward a copy of the permanent closure report to DEQ for their review and comment.

Idaho Admin. Code r. 20.03.02.111

Effective March 18, 2022