SECTION 4 Assessment of Effects C:\D Data\GWS C Drive\GWS\Client Files\1344 OGL - WKP\4 Deliverables\WKP Final Draft Report\June Report\WAI-985-000-REP-LC-0030. Final_Rev_0.docx 37 therefore, the potential that dewatering of the vein systems could depressurize the downgradient groundwater system to the extent that the headwater spring flows become affected. Figure 31 Headwater Spring Discharge Locations and Flow Rates Figure 32 T Stream Geological Section In the case of the Teawaotemutu Stream headwater springs, whether this occurs is dependent on the assumed rockmass permeability and degree of hydraulic connectivity between the western Rhyolite dome and the other vein systems / host rocks. If the surrounding rockmass is of sufficiently low permeability, reductions in flow may not occur. If there is strong hydraulic connectivity a reduction in headwater spring flows could be expected. Based on the
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