25A - AGREEMENT ICF INTERNATIONAL 1901 N. FAIRVIEW ST.

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The Academy Charter High School MND I City of Santa Ana Planning Division INCE and has conducted numerous analyses for projects involving re-development and school projects that are adjacent to residential and sensitive uses. Existing residences are located immediately adjacent to the project site, which could be impacted by noise from project construction and/or operation. Additionally, on-site classrooms, outside recreational school uses, and offsite residential land uses adjacent to the local arterial roads are also considered to be noise-sensitive and could be impacted by project traffic. To identify the existing ambient noise environment in the project area, five short-term (10-15 minutes in duration) ambient noise measurements will be conducted at noise-sensitive locations in and around the project site. The noise measurements will be conducted using equipment and methods as proscribed by the American National Standard Institute and consistent with the standards of the practice for community noise analysis. Using the noise measurements as a baseline, potential construction noise impacts on nearby noise-sensitive land uses will be evaluated based on construction equipment data to be provided by the project applicant and noise modeling methods developed by the Federal Highway Administration (FHWA). Long-term (operational) noise effects from the project will also be addressed and will include evaluation of on-site activity noise levels and the ability of the noise to effect surrounding uses. Further, traffic noise will be assessed using the project's traffic volume data and the FHWA Traffic Noise Model version 2.5. The significance of noise impacts resulting from the proposed project will be assessed based on relevant thresholds (city, state and federal). If significant noise impacts are identified, mitigation measures to reduce impacts to a less-than-significant level (where feasible) will be recommended. The results of the noise analysis will be provided in the noise section of the IS/MND. Any technical data or modeling will be provided in an appendix. Cultural Resource Evaluation ICF recommends that a records search, locality search, and assessment report be prepared to evaluate the potential for archeological and paleontological resources to be found on the project site. This evaluation will: ® Conduct a literature and records search at the South Central Coastal Archaeological Information Center of the California Historical Resources Information System at California State University, Fullerton, to determine if any prehistoric or historical cultural resources have been recorded within project area. N Review published geologic and paleontological literature and museum databases, including the Los Angeles County Museum of Natural History database. ® Incoordination with the City, ICF will contact with the Native American Heritage Commission and local Native Americans regarding the project. Because the project area is completely paved and developed, an archaeological field survey will not be conducted. The findings of the cultural and paleontological resource investigations will be used to provide an assessment of the sensitivity of the project area for prehistoric archaeological and paleontological resources. This will be summarized in the Cultural Resource section of the ISIMND. The MND will also provide mitigation measures, if necessary. Traffic Impact Analysis (TIA) As a subconsultant to ICF, Fehr & Peers will prepare a project-specific TIA to evaluate the traffic related impacts of the proposed project. The TIA will be summarized in the traffic section of the ISIMND and included as an appendix. Preparation of the TIA includes the following tasks: N Confirm Traffic Analysis Scope. Fehr & Peers and other members of the project team would meet with the City of to review and approve our approach to preparing the traffic study. Specific Items that would be addressed in this scoping memorandum include: Page 13 25A-25