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City of Santa Ana Addendum to the <br />MainPlace Mall Transformation Proiect Fashion Square Commercial Center Final EIR <br />5.5 ARCHAEOLOGY <br />Summary of Impacts Identified in the 1983 EIR <br />The 1983 EIR describes that an archaeological records search was conducted, which <br />indicated that there are no recorded archaeological sites on the Project site and only <br />one archaeological resource has been recorded within a two -kilometer radius of the site. <br />The 1983 EIR determined that no impacts to archaeological resources would occur from <br />redevelopment of the site and no mitigation measures were required. <br />Summary of Impacts Identified in the 1996 Addendum <br />The 1996 Addendum describes that the site is entirely developed, and no <br />archaeological resources were recorded on the site. The EIR determined that no <br />archaeological resources are anticipated to be present on the site and that no impacts <br />to archaeological resources would occur. <br />Impacts Associated with the Proposed Project <br />No New Impact. Based on review of historic aerial photographs, the site was primarily <br />utilized for agricultural purposes (citrus groves) with several residential structures <br />associated with the agricultural land along Main Street in the eastern portion of the site <br />between approximately 1938 and 1952 (Geo 2019). By approximately 1963, the site <br />was developed with paved surface parking and access roads surrounding a centralized <br />shopping mall, a large building in the southern portion of the site and a small building in <br />the southwestern portion of the site. By approximately 1980, one of the parking <br />structures was constructed in the western portion of the site. Between approximately <br />1980 and 1995, major redevelopment of the onsite structures occurred resulting in <br />development to the site as it exists today (Geo 2019). All of the existing structures on <br />the Project site are modern and no historic resources exist on the site. Because the <br />proposed Project would remove modern structures and redevelop the site with new <br />modern structures, impacts related to historic resources would not occur. <br />As the site is developed, the onsite soils have been previously disturbed. The Geologic <br />and Seismic Hazard Review Study (Geo 2019) describes that artificial fill materials are <br />located onsite. The fill ranges from approximately 5 to 10.5 feet deep and generally <br />consists of brown to dark brown, loose, or soft silty sand and clayey sand with trace <br />amounts of construction debris. The fill materials are likely associated with the existing <br />improvements and initial development of the site (Geo 2019). Due to the extent and <br />depth of previous ground disturbances throughout the site, archaeological resources are <br />not anticipated to be located onsite. Thus, potential impacts related to archaeological <br />resources would be less than significant. No new impact would occur. <br />The Project site is not in an area known for having, or suspected of having, tribal <br />cultural resources or human remains. In the unlikely event that human remains are <br />encountered during earth removal or disturbance activities, the California Health and <br />65 <br />