Item 17 - Appropriation Adjustments for Bristol Improvement Project Phase 4

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ENVIRONMENTAL IMPACT REPORT ADDENDUM Bristol Street Widening Project Warner Ave to Saint Andrew Place (Phase IV) As shown in Chapter Vf, Resources Element, of the County of Orange General Plan, the project site is not located in an area of paleontological sensitivity. Also, the proposed project would involve only shallow excavation. Furthermore, since the project area is already developed, the potential for discovering paleontological resources during construction is low. Soils occurring in the project area are mostly Quaternary Alluvium. Typically, these deposits are less than 10,000 years old, and not likely to contain important fossils. No greater impacts to paleontological resources than previously analyzed in the 1990 Final EISIEIR would result from project implementation. Mitigation Measures No new additional mitigation measures are required. (d) Disturb any human remains, including those interred outside of formal cemeteries? The project site is located within a fully developed urban area of the City. No formal cemeteries are located within the project area or vicinity. However, in the event that human remains are uncovered during grading or excavation, contractors are required to comply with the procedures and requirements set forth in the California Health and Safety Code Section 7050.5 and Public Resources Code Section 2098.98. The County Coroner and, in the event that the remains are Native American, the Native American Heritage Commission would be notified and, in turn, would notify those persons believed to be most likely descended from the deceased for appropriate disposition of the remains. The proposed project would not result in human remains impact greater than previously analyzed in the 1990 Final EISIEIR. Mitigation Measures No new additional mitigation measures are required. 3.6 Geology and Soils This section corresponds with Section IV, Environmental Consequences and Mitigation Measures, subsections A, Landform Modification, B. Seismic Hazards, C. Erosion Impacts, and F. Water Quality, of the previously approved 1990 FinalEIS/EIR. (a) i Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. The City of Santa Ana is not included in the Alquist-Priolo Earthquake Fault Zoning Map. The project site is not underlain by an active fault and the closest fault, the Newport -Inglewood Fault, is approximately eight miles to the west. The proposed widening would not result in greater impacts than previously analyzed in the 1990 Final EISIEIR. Mitigation Measures No new additional mitigation measures are required. (a) ii Strong seismic ground shaking? The Newport -Inglewood Fault is the closest fault to the project site and is the most likely source of ground shaking impacts. The proposed project is an intersection widening project and would not expose people or structures to adverse ground shaking impact. The proposed widening would not result in greater impacts than previously analyzed in the 1990 Final EISIEIR. ANA 305-194 (PER 02) CSA (AUGUST 2014) 133867 YU 34 75C-50