Water Resources <br />. j Special provisions could be made to contain dewatered ground water, ifpre-excavation <br />assessments indicate that the ground water is contaminated. Disposal of contaminated water is <br />regulated by state or local agencies based on contaminant levels. It is anticipated that most or all <br />of the water draining from the site could be discharged to the storm drainage system or into the <br />sanitary sewer system through a city permit. <br />No significant impacts on flood storage in the Willamette River are expected. If any flood <br />storage is lost as a result of the proposed project, the proponent would be required to provide <br />j '' additional storage in the affected system to mitigate the storage loss. <br />Significant Unavoidable Adverse Impacts <br />No significant unavoidable adverse impacts on water resources are anticipated to result from <br />either of the alternatives. <br />New Federal Courthouse 53 Final EIS <br />