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Responses to " "~ Environmental Checklist 1 l For CEQA Compliance D. Expose sensitive receptors to substantial pollutant concentrations? Findin4: Less than Significant Impact. Analvsis: Long-term operation of the proposed sewer lift station is not anticipated to expose sensitive receptors to substantiak pollutant concentrations because sewer lift stations are not identified as a point-source emitter by the SCAQMD (because the primary source of power would be from electricity and not fossil fuels), and because the proposed lift station is intended to replace an existing sewer lift station, such that there would be no net increase in criteria pollutants that could affect nearby sensitive receptors. Sensitive receptors in the project area would include residences located north and south of the proposed lift station, and students at the high school located to the southeast. There are no sensitive receptors located adjacent to the area proposed for demolition within Bristol Street, and as such, demolition activities are not anticipated to expose sensitive receptors to substantial pollutant concentrations. Short-term construction emissions would have the potential to affect sensitive receptors located in the vicinity of the improvement area. Such impacts include fugitive dust and construction equipment emissions. As indicated above under the discussion of Issue III.B, construction activities would be well below the SCAQMD thresholds of significance for all criteria pollutants. Potential air quality impacts to sensitive receptors are therefore dominated by heavier particles that settle out on parked cars, outdoor furniture, landscaping, etc. Large particle emissions thus comprises mare of a soiling nuisance rather than any potentially unhealthful air quality impact. With prevailing daytime southwest to northeast winds, dust soiling potential is likely greatest directly north and east of the project site (i.e., towards the commercial land uses and away from sensitive residential and school uses). While temporary soiling nuisance is considered adverse, it does not constitute a significant air quality impact. E Create objectionable odors affecting a substantial number of people? Finding: Less than Significant Impact. Analvsis: A characterization of potential odor impacts from most sources is difficult because there are no instruments that replicate the unique ability of the human nose to experience a vast variety of odor character and intensity. This sensitivity varies from one individual to another and it varies with gender, age, cultural history, or with a memory of a previous odor experience. Short-term construction activities could result in the generation of odors, such as from asphalt paving, but these odors are not typically objectionable and are not anticipated to affect a substantial number of people. Such odors associated with cons#ruction activity wouid cease to be emitted from the site upon construction of the proposed new Page 39 of 64 75E-43