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05/09/2012 10:20 FAX 559 230 6111 SJVAPCD Outreach & Comm L(ujuvoaiuovu District CEQA Reference No:20120196 Page 2 of 4 ii) Pre- and post-project emissions should be identified. 1b) Nuisance Odors should be discussed as to whether the project would create objectionable odors affecting a substantial number of people. Toxic Air Contaminants (TACs) —are defined as air pollutants that which may cause or contribute to an increase in mortality or serious illness, or which may pose a hazard to human health. The most common source of TACs can be attributed to diesel exhaust fumes that are emitted from both stationary and mobile sources. If the project is located near residential/ sensitive receptors, the proposed project should be evaluated to determine the health impact of TACs to the near-by receptors. If the analysis indicates that TACs are a concern, the District recommends that a Health Risk Assessment (HRA) be performed. If an HRA is to be performed, it is recommended that the project proponent contact the District to review the proposed modeling approach. More information on TACs, prioritizations and HRAs can be obtained by: E-mailing inquiries to: hramodeler@valleyair.org; or Visiting the District's website at: http://www.valleyair.org/busind/pto[Tox_Resources/AirQualityMonitoring.htm. 2) If preliminary review indicates that a Mitigated Negative Declaration should be prepared, in addition to the effects identified above, the document should include: 2a) Mitigation Measures — If preliminary review indicates that with mitigation, the project would have a less than significant adverse impact on air quality, the effectiveness of each mitigation measure incorporated into the project should be discussed. 2b) District's attainment status — The document should include a discussion of whether the project would result in a cumulatively considerable net increase of any criteria pollutant or precursor for which the San Joaquin Valley Air Basin is in non-attainment. Information on the District's attainment status can be found online by visiting the District's website at http://valleyair.org/aqinfo/ attainment.htm. 3) If preliminary review indicates that an Environmental Impact Report (EIR) should be prepared, in addition to the effects identified above, the document should also include the following: 3a) A discussion of the methodology, model assumptions, inputs and results used in characterizing the project's impact on air quality. 3b) A discussion of the components and phases of the project and the associated emission projections, (including ongoing emissions from each previous phase).