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City of Santa Ana ISSUES: 9 HYDROLOGY AND WATER QUALITY Would the project: a) Violate any water quality standards or waste discharge requirements? ID) Substantially deplete groundwater 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 - existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? c) Substantially alter the existing drainage pattern 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? Ell) Substantially alter the existing drainage pattern 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 in which would result In flooding on- or off- site? e) Create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff? i) Otherwise substantially degrade water quality? III Place housing within a 100 -year flood hazard area as mapped on federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? h) Place within a 100 -year flood hazard area structures which would impede or redirect flood flows? I) Expose people or structures to a significant risk of loss, Injury or death Involving flooding, including flooding as a result of the failure of a levee or dam? Appendix A. Environmental Checklist P ya Ec ER P— g g&� s EPe E� "SSz s J.rc JY�5 i The Met at South Coast Multi- Family Residential Project June 2013 Final Mitigated Negative Declaration— Addendum A -6 75B -73