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Environmental Checklist For CEQA Compliance Issues & Supporting Information Sources C. Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of 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? D. Create or contribute runoff water which would exceed the capacity of existing or planned storm water drainage systems or provide substantial additional sources of polluted run-off? E. Place housing within a 100-year floodplain, as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? F. Place within a 100-year floodplain structures which would impede or redirect flood flows? G. Place housing within a 100-year floodplain, as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? H. 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. I. Result in an increase in pollutant discharge to receiving waters? Consider water quality parameters such as temperature, dissolved oxygen, turbidity and other typical storm water pollutants (e.g. heavy metals, pathogens, petroleum derivatives, synthetic organics, sediment, nutrients, oxygen-demanding substances, and trash). J. Result in significant alterations of receiving water quality during or following construction? K. Could the proposed project result in increased erosion downstream? L. Result in increased impervious surfaces and associated increased runoff? db\forms\environmental checklist Potentially Significant Potentially Unless Less Than Significant Mitigation Significant No Impact Incorporated Impact Impact ^ ~ ^ ^ ^ r~ ^ ^ ^ ~ ^ ^ ^ ^ ^ ~' ^ ^ ^ ~ ^ ^ ^ ~ ^ ~ ^ ^ ^ o~ ^ ^ ^ ~ ^ ^ ^ ~ ^ ^ Page 6 of 11 7~$2