www.valenza-engineering.com 381_R_04_Rev 0 OGNZL_WUG_Phase1_Conceptual_Mitigation 42 7.3. ADDITIONAL FIELD PROGRAM The additional fieldwork program required to support the consent process has been developed by OGNZL’s groundwater experts and is detailed in Section 8. The constraints experienced by OGNZL with drill sites and permissions to access the near-stream locations required to fill the knowledge gap suggests the completion of data collection in two phases. This staged approach is made necessary by the following constraints: • Difficulty in achieving access permissions to near-stream locations (shallow piezometers); • Difficulty in achieving access permissions to in-stream locations (streambed conductance measurement); • Greater number of locations of data collection (and collection depths), targeting key zones of interest The phased approach feeds into the wider Exploration Phase and Mining Phase and is detailed in VE memo 381_M05 of 27th May 2022 presented in Appendix H. Phase 1 of the field program includes installations and borehole hydraulic tests within existing monitoring points and additional drillholes from existing drill sites. Phase 2 comprises includes the tests and measurements proposed from near-stream piezometers. The development of a Monitoring Plan will be required to establish monitoring parameters, frequencies, analytes, and testing procedures.
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