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<br /> <br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 162 <br />3.10 Hydrology and Water Quality <br />ENVIRONMENTAL ISSUES <br />Potentially <br />Significant <br />Impact <br />Less Than <br />Significant <br />with <br />Mitigation <br />Incorporated <br />Less Than <br />Significant <br />Impact <br />No <br />Impact <br />a) Would the project violate any water <br />quality standards or waste <br />discharge requirements or <br />otherwise substantially degrade <br />surface or groundwater quality? <br /> <br />b) Would the project substantially <br />decrease groundwater supplies or <br />interfere substantially with <br />groundwater recharge such that <br />the Proposed Project may impede <br />sustainable groundwater <br />management of the basin? <br /> <br />c) Would the project substantially <br />alter the existing drainage pattern <br />of the site or area, including <br />through the alteration of the <br />course of a stream or river, or <br />through the addition of impervious <br />surfaces, in a manner which <br />would: <br />a. result in substantial erosion <br />or siltation on- or off-site? <br />b. Substantially increase the <br />rate or amount of surface <br />runoff in a manner which would <br />result in flooding on- or <br />offsite? <br />c. Create or contribute runoff <br />water which would exceed the <br />capacity of existing or planned <br />stormwater drainage systems <br />or provide substantial <br />additional sources of polluted <br />runoff; or <br />