Reso13 PC 13-09 2859 Initial Study Mitigated Negative Declaration Kensington

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4.9.2 Environmental Checklist and Discussion of Imnacts HYDROLOGY AND WATER QUALITY Less Than Potentially Significant Less Than Significant With Significant No Impact Beneficial Information Impact Mitigation �p�f �P�f Source(s) Incorporated Would the project: 1) Violate any water quality standards or ❑ ❑ ❑ � ❑ 1,2,3 waste discharge requirements? 2) Substantially deplete groundwater � � � � � 1,2,3 supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level(e.g.,the production rate of pre-e�sting nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? 3) Substantially alter the existing � � � � � 1,2,3 drainage pattem of the site or area, including through the alteration of the course of a stream or river,in a manner which would result in substantial erosion or siltation on-or off-site? 4) Substantially alter the existing � � � � � 1,2,3 drainage pattem of the site or area, including through the alteration of the course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner which would result in flooding on-or off-site? 5) Create or contribute runoff water � � � � � 1,2,3 which would exceed the capacity of existing or planned storm water drainage systems or provide substantial additional sources of polluted runoff? 6) Otherwise substantially degrade ❑ � ❑ ❑ ❑ 1,2,3 water quality? 7) Place housing within a 100-year � � � � � 1,2,3 flood hazard area as mapped on a Federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? 8) Place within a 100-year flood � � � � � 1,2,3 hazard area structures which would im ede or redirect flood flows? Kensington Assisted Living Facility Project 54 Initial Study Redwood City Apri12013