ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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increased nighttime light and glare in the region and more limited views of the night sky. The cumulative effect of these changes on visual resources from past and planned future projects, as well as the contribution from the project, is considered significant.Although these cumulative impacts can be minimized to a degree through vegetative and topographic screening of structures,use of downward emitting outdoor lighting, appropriate building design, and other measures,the significant cumulative impact cannot be fully mitigated. Therefore,the cumulative change of agricultural and open space views in the project region to urban land uses and the associated increase in nighttime light and glare are considered cumulative significant and unavoidable impacts. In addition, the project's incremental contribution to these impacts is cumulatively considerable. 5.3.3 AIR QUALITY The project would result in a significant and unavoidable cumulative impact related to short-term construction emissions after implementation of mitigation measures identified in Section 4.3, "Air Quality."For future development projects, assuming all related projects identified in Section 5.2.2, "List of Related Local Projects," plus other development in the air basin also implement all feasible construction emission control measures consistent with San Joaquin Valley Air Pollution Control District(SJVAPCD) Guidelines(SJVAPCD 2002), construction emissions on a project-by-project basis could be less than significant. However,the related projects taken in total and combined with the nonattainment status of the San Joaquin Valley Air Basin(SJVAB) for ozone and respirable particulate matter(PMIo)would nonetheless result in a significant and unavoidable cumulative construction-related air quality impact. Therefore,the project's incremental contribution would also be significant and unavoidable. While there is a potential for odors to occur at the WQCF site from operation of WQCF facilities, compliance with industry standard odor control practices and SJVAPCD Rule 4102 (Nuisance)would limit potential odor impacts. It is assumed that other future project would also be required to comply with adopted odor-control requirements. Design of the WQCF would incorporate all feasible odor control technologies to reduce the potential for the exposure of sensitive receptors to odors. However,the project's odor impacts were determined to be significant and unavoidable because it is not possible to determine if odor control technologies would reduce the number of odor complaints to less than one per year on average. Further,no additional odor reduction measures are feasible. While the project would result in a significant and unavoidable odor impact, odor impact issues are site specific. Because other future projects would be expected to comply with adopted odor-control requirements, cumulative odor impacts would be less-than-significant and the project's contribution would not be considerable. The project would generate a trip increase that is less than 1.0%of existing traffic volumes on local area roadways and would not decrease the LOS of these roadways. Therefore,the project would not contribute to CO concentrations that exceed the CAAQS of 9.0 ppm for 8 hours or 20 ppm for 1 hour. As a result, cumulative mobile-source CO concentrations would be less than significant and the project's contribution would not be considerable. The project's contribution to long-term cumulative increases in construction-related equipment or stationary source TAC concentrations would be minor and less than significant because construction emissions would be temporary and would rapidly dissipate with distance from the source and proposed operations would not result in the exceedance of the SJVAPCD's screening criteria for project's resulting in significant TAC emissions. Because all other TAC issues are site specific,the project would not result in a considerable contribution to any regional TAC impacts. Operational emissions of the project would not exceed SJVAPCD's significance thresholds for reactive organic gasses (ROG)and nitrogen oxides(NOx) (10 tons per year). Based on the modeling conducted, operation-related activities would not result in total project-generated emissions of ROG or NOx that exceed SJVAPCD's significance threshold of 10 tpy. Thus,project-generated, operation-related emissions of criteria air pollutants and precursors would not violate or contribute substantially to an existing or projected air quality violation, expose Manteca WQCF and Collection System Master Plans EIR EDAW City of Manteca 5-13 Cumulative Impacts