75A - PH ADOPT RESO FOR WELL 32 IMPROVEMENTS

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City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration EKlm>Y•ll]MESA AIJil2iTel& e1.IIIJAIIII[He1111IIQkiIJ,INEW11*K 4.1 PROJECT IMPACTS An IS has been prepared to assess the Proposed Project's potential impacts on the environment and the significance of those impacts and is incorporated in the MIND. Based on this IS, it has been determined that the Proposed Project would not have any significant impacts on the environment, once all proposed mitigation measures have been implemented. This conclusion is supported by the following findings: • There was no potential for adverse impacts on agricultural and forest resources, land use planning, or mineral resources associated with the Proposed Project. • Potential adverse impacts resulting from the Proposed Project were found to be less than significant in the following areas: aesthetics, energy, greenhouse gas emissions, hazards and hazardous materials, hydrology and water quality, population and housing, public services, recreation, transportation, utilities and service systems, and wildfire. • Full implementation of the proposed mitigation measures included in this MIND would reduce potential project -related adverse impact on air quality, biological resources, cultural resources, geology and soils, noise, and tribal cultural resources to a less than significant level. 4.2 MITIGATION MEASURES The following mitigation measures have been incorporated into the scope of work for the Proposed Project and will be fully implemented by the City to avoid or minimize adverse environmental impacts identified in this IS/MND. These mitigation measures will be included in the Mitigation Monitoring and Reporting Plan prepared for this Project (see Appendix B). Mitigation Measures: AIR-1: The Project will be required to comply with regional rules that assist in reducing air pollutant emissions. South Coast Air Quality Management District (SCAQMD) Rule 403 requires that fugitive dust be controlled with best available control measures so that the presence of such dust does not remain visible in the atmosphere beyond the property line of the emission source. In addition, SCAQMD Rule 402 requires implementing dust suppression techniques to prevent fugitive dust from creating a nuisance off site. Implementing these dust suppression techniques will reduce the fugitive dust generation (and thus PM10 and PM25). Compliance with these rules will reduce impacts on nearby sensitive receptors. Standard requirements and Best Management Practices include the following: • Equipment/vehicles shall not be left idling for periods in excess of five minutes • Engines shall be maintained in good working order to reduce emissions. • Onsite electrical power connections shall be made available where feasible. • Low -sulfur diesel fuel shall be utilized. • Electric and gasoline powered equipment shall be substituted for diesel powered equipment where feasible. • Exposed soils and haul roads shall be watered up to three times per day to reduce fugitive dust during grading/construction activities, if necessary. • Street sweeping shall be conducted when visible soil accumulations occur along site access roadways to remove dirt dropped by construction vehicles. December 2019 75A=-50 Q