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D.1.5. Hydrology and Water Quality Impact 4.8.4 Groundwater extraction associated with the proposed project could lower groundwater levels beyond the project boundaries, causing lower local or regional groundwater levels that are below the current pumping depths of existing private or municipal groundwater supply wells. This would be a less-than-significant impact because groundwater demands would be less than baseline agricultural groundwater usage for the site under pre project conditions. No mitigation is required. (Draft EIR, pp. 4.8-26 to 4.8-29.) Impact 4.8.5 Reuse of excavated overburden containing clay and silts combined with equipment compaction of the reclaimed mine areas could decrease infiltration of surface water and reduce groundwater recharge from the project site throughout the life of the project and after reclamation. This would be a less-than-significant impact because mining and reclamation activities would not significantly change the ability of the soils to infiltrate surface water and contribute to the recharge of the underlying water table. No mitigation is required. (Draft EIR,pp. 4.8-29 to 4.8- 30.) Impact 4.8.7 Mining operations would alter the natural,preferentialflow pathways of surface water resulting in areas of localized onsite flooding. This is a less-than-significant impact because stormwater would be directed to onsite silt ponds and excavated areas and any temporary areas of onsite flooding would be managed onsite. No mitigation is required. (Draft EIR,p. 4.8-33.) D.1.6. Biological Resources Impact 4.9.3 The project will not conflict with any applicable habitat conservation plan or natural community conservation plan. This would be a less-than-significant impact. No mitigation is required. (Draft EIR, p. 4.9-18.) Impact 4.9.4 The project will not have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans,policies, or regulations or by the CDFG or USFWS. This would be a less-than-significant impact. No mitigation is required. (Draft EIR, pp. 4.9-18 to 4.9-19.) Impact 4.9.5 The project will not interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites. This would be a less-than significant impact. No 7