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C) will be quantified using the URBEMIS-2002 program and modeled emissions would be compared to recommended significance thresholds applied by the SJVAPCD. With this information, MBA will discuss the potential for the combined emissionsfrom the project and cumulative,development in the vicinity to adversely affect air quality. Based on thesite's rural.location; no carbon monoxide modeling (e.g., hot-spot analysis of local intersections) is proposed under this scope of.work. MBA will calculate concentration of diesel particulates near the project'site and truck routes: from heavy-duty diesel trucks using the CARB Hot Spot Analysis and.Reporting Program (HARP) model. SJVAPCD recommends the HARP model for analysis of projects that have fueling operations and/or generates primarily heavy-duty diesel truck trips. Through modeling, MBA will predict the cancer and non-cancer health risks associated with project. generated diesel particulates using the Unit Risk Factor (URF) developed by the CARB's Scientific Review Committee for cancer risk of diesel particulates, and the Reference Exposure Level (REF) for non-cancer health risks of diesel particulates developed by Office of Environmental Health Hazard Assessment (OEHHA). MBA will identify practical, feasible mitigation measures to reduce identified air quality impacts. Additionally, MBA will evaluate whether mitigation measures would reduce the impacts below a level of significance and identify the parties who would be responsible for implementing each measure. Noise The primary noise issues, as identified in the RFP, are the close proximity of existing residences to Brandt Road and the proposed mining excavation and the potential for an increased number of trucks. The purpose of the noise analysis will be to determine the noise impacts of the project on the existing residences near Brandt Road_ In addition, the noise study will analyze alternative routes as identified in the Michael Callahan Memo dated May 15, 2007. The alternative routes will include Clements Road (north and south), Harney Lane and Cord Road. Miller Environmental Consultants, Inc. (MEC)will prepare a stand alone noise study that will be used as the basis for the analysis of noise impacts in the EIR. The noise analysis will use precision, calibrated sound level meters (Metrosonics dB-308s) for all noise measurements. The noise analysis will include simultaneous 48-hour noise measurement (two days) at three locations near the project site to document the existing ambient noise environment, with special emphasis on noise from traffic on Brandt Road. Supplemental short-term measurements will be collected to document the noise environment on the preferred and alternative routes identified above. MEC will describe and discuss existing major noise sources in the vicinity of the project area based on a review of the area. The analysis will describe the existing noise environment on the basis of several short-term noise measurements (typically 5 minutes) at representative areas and long-term (48-hour) noise measurements at three on-site locations, including locations near Brandt Road. The noise analysis will also include 48-hour measurements at four locations on alternative haul routes including: • Clements Road north of Brandt Road; • Clements Road south of Brandt Road; • Harney Road west if Clements Road; and • Cord Road south of SR 12. MEC will evaluate the potential for significant noise impacts based on the estimated change in noise levels at noise-sensitive uses along Brandt Road and the alternative haul routes. This evaluation will include modeling that will be conducted using the Federal Highway Administration's roadway noise prediction model and will include modeling based upon