147 27 The objective of the NRS Monitoring and Management Plan is to monitor and assess the effects of the Northern Rock Stack on the land, ground and groundwater resources and to trigger the implementation of contingency measures where necessary to ensure the conditions of this consent are achieved. 28 The NRS Monitoring and Management Plan must include, at minimum: a. A risk management plan, as defined in the Australian/New Zealand Standards for Risk Management (AS/NZS 4360:1999) or any subsequent replacement standard. The purposes of the risk management plan shall be to: i. identify and assess the operational risks relating to Northern Rock Stack; ii. develop risk reduction actions where assessed risks are not at an acceptable level; and iii. develop an appropriate monitoring programme. b. A structural integrity monitoring programme for the embankment of Northern Rock Stack. c. Monitoring systems and the measures to be adopted to ensure compliance with General Condition G33, including: i. the details of the monitoring bores to be established in accordance with Condition 21; ii. details of the “scan monitoring” in both shallow and deep aquifer systems in accordance with Condition 23; iii. the trigger levels for pH, conductivity and water levels which are set in accordance with Condition 24; iv. a contingency plan to be actioned in the event a trigger level is breached over two consecutive readings, and which is sufficient to assess the source of the change, and to determine what, if any, mitigation measures should be implemented to ensure that General Condition G33 is complied with; and v. the measurement and monitoring of the liner and cover system integrity (by measuring drainage quality and flow from all underdrainage and surface collection systems) in order to verify the "as built" structure is achieving predicted design performance objectives. In detailing the monitoring programmes the Consent Holder shall provide information on the monitoring methods proposed, the monitoring locations, parameters to be monitored, and the calibration and maintenance of monitoring equipment. In the event of any conflict or inconsistency between the conditions of this consent and the provisions of the NRS Monitoring and Management Plan, then the conditions of this consent shall prevail.
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