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City of Santa Ana Environmental Checklist <br />The Academy Charter High School 3 S4 June 2012 <br />Initial Study /Mitigated Negative Declaration ICF 00914.11 <br />Less-than- <br />Significant <br />Potentially <br />Impact with <br />Less -than- <br />Significant <br />Mitigation <br />Significant No <br />IX. Hydrology and Water Quality <br />Impact <br />Incorporated <br />Impact Impact <br />Would the project: <br />a. <br />Violate any water quality standards or waste <br />❑ <br />❑ <br />® ❑ <br />discharge requirements? <br />b. <br />Substantially deplete groundwater supplies <br />❑ <br />❑ <br />® ❑ <br />or interfere substantially with groundwater <br />recharge, resulting in a net deficit in aquifer <br />volume or a lowering of the local <br />groundwater table level (e.g., the production <br />rate of pre-existing nearby wells would drop <br />to a level that would not support existing <br />land uses or planned uses for which permits <br />have been granted)? <br />C. <br />Substantially alter the existing drainage <br />❑ <br />❑ <br />® ❑ <br />pattern of the site or area, including through <br />the alteration of the course of a stream or <br />river, in a manner that would result in <br />substantial erosion or siltation onsite or <br />offsite? <br />d. <br />Substantially alter the existing drainage <br />❑ <br />❑ <br />® ❑ <br />pattern of the site or area, including through <br />the alteration of the course of a stream or <br />river, or substantially increase the rate or <br />amount of surface runoff in a manner that <br />would result in flooding onsite or offsite? <br />e. <br />Create or contribute runoff water that would <br />❑ <br />❑ <br />® ❑ <br />exceed the capacity of existing or planned <br />storinwater drainage systems or provide <br />substantial additional sources of polluted <br />runoff? <br />f. <br />Otherwise substantially degrade water <br />❑ <br />❑ <br />® ❑ <br />quality? <br />g. <br />Place housing within a 100 -year flood hazard <br />❑ <br />❑ <br />❑ <br />area, as mapped on a federal Flood liazard <br />Boundary or Flood Insurance Rate Map or <br />other flood hazard delineation map? <br />h. <br />Place within a 100 -year flood hazard area <br />❑ <br />❑ <br />❑ <br />structures that would impede or redirect <br />flood flows? <br />i. <br />Expose people or structures to a significant <br />❑ <br />❑ <br />® ❑ <br />risk of loss, injury, or death involving <br />flooding, including flooding as a result of the <br />failure of a levee or darn? <br />j. <br />Contribute to inundation by seiche, tsunami, <br />❑ <br />❑ <br />❑ <br />or mudflow? <br />The Academy Charter High School 3 S4 June 2012 <br />Initial Study /Mitigated Negative Declaration ICF 00914.11 <br />