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SANTA ANA REZONE PROJECT <br /> INITIAL STUDYIMITIGATED NEGATIVE DECLARATION <br /> Less than <br /> Significant <br /> Potentially Impact with Less than <br /> Significant Mitigation Significant <br /> Environmental Issues Impact Incorporated Impact No Impact <br /> 2.10 Hydrology and Water Quality <br /> Would the project: <br /> a) Violate any water quality standards or ❑ ❑ ® ❑ <br /> waste discharge requirements or otherwise <br /> substantially degrade surface or <br /> groundwater quality? <br /> b) Substantially decrease groundwater ❑ ❑ <br /> supplies or interfere substantially with <br /> groundwater recharge such that the project <br /> may impede sustainable groundwater <br /> management of the basin? <br /> c) Substantially alter the existing drainage ❑ ❑ ❑ <br /> pattern of the site or area, including <br /> through the alteration of the course of a <br /> stream or river or through the addition of <br /> impervious surfaces, in a manner which <br /> would: <br /> (i) result in substantial erosion or siltation ❑ ❑ ® ❑ <br /> on-or off-site; <br /> (ii)substantially increase the rate or ❑ ❑ ® ❑ <br /> amount of surface runoff in a manner <br /> which would result in flooding on-or off- <br /> site; <br /> (iii)create or contribute runoff water which ❑ ❑ ® ❑ <br /> would exceed the capacity of existing or <br /> planned stormwater drainage systems <br /> or provide substantial additional <br /> sources of polluted runoff; or <br /> (iv) impede or redirect flood flows? ❑ ❑ ❑ <br /> d) In flood hazard, tsunami, or seiche zones, ❑ ❑ ❑ <br /> risk release of pollutants due to project <br /> inundation? <br /> FCS <br /> Rapsaladecinnovationssbarepofnr.aom/sites/Publications5ire/5hared 65 <br /> 0vcumems/Publi®tions/C9ient(PN.lN)/0327/0327 7/15MN❑/0327IX75antAnaRemeP,.,Qrr iD.. ce No. NS-3092 Page 77 of 118 <br />