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8.A. - Page 84 <br /> Section 4: Evaluation of Environmental Impacts <br /> 4.9 - HYDROLOGY AND WATER QUALITY <br /> Would the project: <br /> Potentially Less Than Less Than No <br /> Significant Significant with Significant Impact <br /> Impact Mitigation Impact <br /> Incorporation <br /> a) Violate any water quality standards or waste ❑ ❑ ® ❑ <br /> discharge requirements? <br /> b) Substantially deplete groundwater supplies or <br /> interfere substantially with groundwater recharge <br /> such that there would be a net deficit in aquifer <br /> volume or a lowering of the local groundwater table ❑ ❑ ® ❑ <br /> level (e.g., the production rate of pre- existing <br /> nearby wells would drop to a level which would not <br /> support existing land uses or planned uses for <br /> which permits have been granted)? <br /> c) Substantially alter the existing drainage pattern of <br /> the site or area, including through the alteration of <br /> the course of a stream or river, in a manner that ❑ ❑ ® ❑ <br /> would result in substantial erosion or siltation on- <br /> or off -site? <br /> d) Substantially alter the existing drainage pattern of <br /> the site or area, including through the alteration of <br /> the course of a stream or river, or substantially ❑ ❑ ® ❑ <br /> increase the rate or amount of surface runoff in a <br /> manner which would result in flooding on- or off - <br /> site? <br /> e) Create or contribute runoff water which would <br /> exceed the capacity of existing or planned ❑ ❑ ® ❑ <br /> stormwater drainage systems or provide <br /> substantial additional sources of polluted runoff? <br /> f) Otherwise substantially degrade water quality? ❑ ❑ ❑ <br /> g) Place housing within a 100 -year flood hazard area <br /> as mapped on a federal Flood Hazard Boundary or ❑ ❑ ® ❑ <br /> Flood Insurance Rate Map or other flood hazard <br /> delineation map? <br /> h) Place within a 100 -year flood hazard area <br /> structures which would impede or redirect flood ❑ ❑ ® ❑ <br /> flows? <br /> i) Expose people or structures to a significant risk of <br /> loss, injury or death involving flooding, including ❑ ❑ ® ❑ <br /> flooding as a result of the failure of a levee or dam? <br /> j) Inundation by seiche, tsunami, or mudflow? ❑ ❑ ® ❑ <br /> Redwood City Housing Element Initial Study 45 <br />