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8.B. - Page 58 <br /> 4.9.2 Environmental Checklist and Discussion of Imnacts <br /> HYDROLOGY AND WATER QUALITY <br /> Less Than <br /> Potentially Significant Less Than <br /> Significant With Significant No Impact Beneficial Information <br /> Impact Mitigation Impact Impact Source(s) <br /> Incorporated <br /> Would the project: <br /> 1) Violate any water quality standards or ❑ ❑ ❑ � ❑ 1,2 <br /> waste discharge requirements? <br /> 2) Substantially deplete groundwater � � � � � 1,2 <br /> supplies or interfere substantially with <br /> groundwater recharge such that there <br /> would be a net deficit in aquifer <br /> volume or a lowering of the local <br /> groundwater table level(e.g.,the <br /> production rate of pre-existing nearby <br /> wells would drop to a level which <br /> would not support existing land uses <br /> or planned uses for which permits <br /> have been granted)? <br /> 3) Substantially alter the existing � � � � � 1,2 <br /> drainage pattern of the site or area, <br /> including through the alteration of <br /> the course of a stream or river,in a <br /> manner which would result in <br /> substantial erosion or siltation on-or <br /> off-site? <br /> 4) Substantially alter the existing � � � � � 1,2 <br /> drainage pattern of the site or area, <br /> including through the alteration of <br /> the course of a stream or river, or <br /> substantially increase the rate or <br /> amount of surface runoff in a <br /> manner which would result in <br /> flooding on-or off-site? <br /> 5) Create or contribute runoff water � � � � � 1,2 <br /> which would exceed the capacity of <br /> existing or planned storm water <br /> drainage systems or provide <br /> substantial additional sources of <br /> polluted runoff? <br /> 6) Otherwise substantially degrade ❑ ❑ � ❑ ❑ 1,2 <br /> water quality? <br /> 7) Place housing within a 100-year � � � � � 1,2,12 <br /> flood hazard area as mapped on a <br /> Federal Flood Hazard Boundary or <br /> Flood Insurance Rate Map or other <br /> flood hazard delineation map? <br /> 8) Place within a 100-year flood � � � � � 1,2,12 <br /> hazard area structures which would <br /> im ede or redirect flood flows? <br /> 1410 Valota Road Residential Project 46 Initial Study <br /> Redwood City January 2012 <br />