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Appendix C:Initial Study Checklist Former Marley Cooling Tower Company,Stockton,CA <br /> d. Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a <br /> stream or river, or substantially increase the rate or amount of surface runoff in a manner which would result in <br /> flooding on or off-site. <br /> Impact Analysis: No impact is anticipated because existing drainage will not be altered. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> ❑ Less Than Significant Impact <br /> ® No Impact <br /> e. Create or contribute runoff water which would exceed the capacity of existing or planned storm water drainage <br /> systems or provide substantial additional sources of polluted runoff. <br /> Impact Analysis: No change in runoff will occur due to the proposed project. The site currently pumps and treats <br /> all site stormwater. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> ® Less Than Significant Impact <br /> ❑ No Impact <br /> f. Otherwise substantially degrade water quality. <br /> Impact Analysis: Overall, the project proposal should improve water quality by removing soluble chromium from <br /> groundwater forming an insoluble nontoxic trivalent form as evidenced by pilot studies. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> ® Less Than Significant Impact <br /> ❑ No Impact <br /> g. Place within a 100-flood hazard area structures which would impede or redirect flood flows. <br /> Impact Analysis: The project will not impact flood flows. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> ❑ Less Than Significant Impact <br /> ® No Impact <br /> h. Expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result <br /> of the failure of a levee or dam. <br /> Impact Analysis: No Impact is anticipated because flooding is not likely,and levees or dams will not be affected. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> ❑ Less Than Significant Impact <br /> ® No Impact <br /> i. Inundation by sieche, tsunami or mudflow. <br /> Impact Analysis: The project is not expected to result in effects from these events. <br /> Conclusion: <br /> ❑ Potentially Significant Impact <br /> ❑ Potentially Significant Unless Mitigated <br /> Page 16 of 25 <br />