B-2 – Area 2 - Assessment of Environmental Effects 86 Actual or Potential Effect Recommended Mitigation / Management Recommended Monitoring / Future Action Additional Measures Proposed by OGNZL Sediment and contaminant intrusions on Mataura Stream. See erosion and sediment control measures in Surface Water Section above. See Surface Water section. None. Impact on the Mataura Wetland Habitat enhancement planting of the wetland. Monitor the condition of the Mataura wetland vegetation and the hydrological conditions that sustain this wetland prior to and during the proposed activities. Where there have been significant changes in the existing wetland flora or soil moisture levels such that the ecological value or extent of the wetland has been adversely affected: (a) Characterise and assess the source of the change; and (b) Take all necessary measures to ensure that the ecological health and extent of the Mataura wetland is restored to preconstruction baseline conditions. None.
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