B-1 - Area 1, Coromandel Forest Park – Assessment of Environmental Effects 87 o The WRC is provided sufficient information to be able to determine that this is the case. A requirement to prepare, submit and have the Council certify a Mine Area Groundwater Management Strategy before any mining may commence which includes, among other things: o An analysis of all of the data collected in accordance with the Baseline Data Collection Plan; o The detailed strategy, which is supported by numerical modelling, for how mining activities and associated groundwater management will be undertaken in accordance with the principles set out Valenza (2022), in a manner which will ensure compliance with Condition 5, including as a minimum: • Installation of monitoring instruments and hydraulic testing in zones of potential impact in advance of mining occurring in locations which could have an impact on groundwater in those areas (including use of instruments installed prior to or as part of work required by the Baseline Data Collection Plan); • Where necessary to achieve the requirements of Condition 5, predevelopment grouting and depressurisation of the upper sections of proposed stopes or other zones of groundwater connectivity before mining; • Assembling and adhering to suitable Trigger Action Response Plans during pre-development grouting activities so that methods of mitigation to control groundwater ingress occurrences are suitably adapted to address any deviations from expected conditions so that the requirements of Condition 5 are achieved; • Implementing dewatering measures, drainage and depressurisation in mine areas only when pathways are sufficiently sealed; and • Assembling and adhering to suitable Trigger Action Response Plans during mining so that methods of mitigation to control groundwater ingress occurrences are suitably adapted to address any deviations from expected conditions so that the requirements of Condition 5 are achieved, including implementing secondary and tertiary grouting or other mitigation measures where necessary; o A WBM for the Wharekirauponga Catchment which describes the catchments hydrological response to antecedent climatic conditions based on the data collected in accordance with the Baseline Data Collection Plan, including, as a minimum, the probabilistic rainfall / runoff relationship for the surface water monitoring locations outlined in condition 10(b) based on the available baseline surface flow and rainfall data; and
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