SECTION 6 Gladstone Open Pit and TSF C:\D Data\GWS C Drive\GWS\Client Files\1344 OGL - WKP\4 Deliverables\WUG Effects Summary\June 2022\WNP Groundwater Effects Summary_Final_Rev_0.docx 25 Figure 27 Gladstone TSF Section (From GHD 2022) The land discharges have been assessed by GHD with respect to their effects on groundwater and surface water quality and are stated to be within the Receiving Water Quality Criteria (RWQC) at the compliance point in the Ohinemuri River. This is principally due to the high flows in the River having significant dilution potential. Monitoring Monitoring of groundwater levels and quality is proposed as well as surface water flow gaugings and water quality. Specific requirements will be detailed in an overarching Water Monitoring and Contingency Plan. The plan will include requirements for baseline monitoring (for comparative analysis to provide a degree of confidence in the assessment), trigger levels, and contingency measures to manage any potential exceedances.
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