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Santa Ana East Memory Lane/Town and Country Manor EIR SCOPE OF WORK - Cultural Resources Survey - Cultural Resources Phase I Report -- SB 18 Consultation Support MBA will perform a records check of the project site and surrounding area, and review archival aerial photo to document the known historic and prehistoric conditions. The Native American Heritage Commission (NAHC) will be contacted to obtain a file search and identify any Native American concerns. Background paleontological information will also be solicited from the Natural History Museum of Los Angeles. A complete Phase I cultural resources survey of the site will be performed by an MBA Registered Professional Archaeologist (RPA), The Cultural Resources Phase I Report will meet City and SHPO standards (ARMR format), and will contain at a minimum: Introduction and Setting; Prehistoric and Historic Background; Methods Used in the Investigation; Records Search and Survey Results; and Findings and Recommendations. MBA will support the City in compliance with SB 18 Native American Tribal Consultation requirements through preparation of the consultation form and assistance with City response to any letter from NAHC. ■ Noise. MBA will prepare an acoustical analysis that addresses short-term and long-term noise impacts. Short-term construction noise levels from equipment and trucks will be analyzed. Long-term traffic noise levels will be evaluated based on the Federal Highway Administration Highway Traffic Noise Model (FHWA). Based upon measurements of existing conditions, a comparison of the noise without and with project -generated traffic will be provided at project buildout. Noise modeling will be conducted using the approved FHWA Highway Noise Prediction Model or one of its derivatives (e.g., Sound32). Impacts to proposed land uses on -site (i.e. future residents, workers, and guests) and any existing sensitive land uses in the vicinity will then be compared with the goals of the General Plan Noise Element and restrictions set forth in the Municipal Code. MBA will summarize the noise analysis within the EIR. Design and/or operational mitigation, if necessary, will be proposed for any significant impacts. Residual impact after mitigation will be compared with the impact criteria to assess the adequacy of the proposed mitigation measures. The technical noise data generated to analyze the noise emissions will be included as an appendix to the EIR. ■ Air Quality. A comprehensive air quality analysis would include an evaluation of both localized and regional short-term (construction) and long-term (operation) air quality impacts. The air quality analysis would judge the significance of impacts by comparing them to South Coast Air Quality Management District (SCAQMD) localized and regional significance thresholds. To address these thresholds, the air quality analysis requires the following tasks. - Data Collection. Relevant project and site background information will be collected and reviewed to ensure that all potential emissions are included in the analysis. The traffic study prepared for the project is required for the air quality analysis. MBA will work closely with the traffic engineer to ensure the trip generation rates accurately depict the project. - Regional Analysis. Air pollutant emissions will be estimated using emission factors and methodologies developed by California Air Resources Board (CARE), SCAQMD, and other agencies. The pollutants that will be estimated include the following: . 4_