2015-004 - Santa Ana-Garden Grove Fixed Guideway Project

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Santa Ana — Garden Grove Fixed Guideway Project Findings and Facts in Support of Findings and Statement of Overriding Considerations collapse or misalignment of at -grade rails, which may cause streetcar derailment. However, City Staff and regulatory agencies are required to review the design plans and approve the appropriate foundation treatment prior to the issuance of building permits to ensure the structure integrity of project facilities. Therefore, a less- than - significant impact related to seismic ground shaking and liquefaction would occur. • The topography of the Study Area is relatively flat with no significant slopes and is not mapped as being in an Earthquake- Induced Landslide Zone. There is no potential for landslides or seismically- induced landslides. Therefore, no impact related to landslides would occur. • The entire length of the alignment and the O & M Facility would be completely paved. The Study Area is in a flat, highly urbanized area, and there is little potential for soil erosion. Therefore, no impact related to soil erosion would occur. • Expansive soils are typically associated with fine - grained clayey soils that have the potential to shrink and swell with repeated changes in the moisture content. It is not anticipated that expansive soils are located near the surface in the Study Area. Therefore, no impact related to expansive soil would occur. • The Study Area is in a flat, highly urbanized area without a unique geologic feature. Therefore, no impact related to unique geologic features would occur. • The Study Area is located in an urbanized area extensively served by existing sewer infrastructure. Implementation of the proposed project would not require the use of septic tanks or alternative wastewater disposal systems. Therefore, no impact related to septic tanks would occur. G. Greenhouse Gas Emissions (page 3 -148 of the EA/DEIR) • Greenhouse gas (GHG) emissions associated with the proposed project would be approximately 1,224 metric tons per year and would not exceed the significance threshold of 10,000 metric tons per year. Therefore, a less- than - significant impact related to GHG emissions would occur. • The proposed project would be designed to reduce vehicle miles traveled - related emissions by encouraging the use of public transit by providing accessibility to activity centers that provide employment and educational opportunities, goods and services. Therefore, a less - than- significant impact related to GHG plans, policies, and regulations would occur. H. Hazards and Hazardous Materials (pages 3 -103 and 3 -193 of the EA/DEIR) • There is a potential for hazardous materials /waste spills to occur at the O & M Facility, which is of importance as this site is located 0.20 mile from John C. Fremont Elementary School at 1930 10th Street and Romero -Cruz Elementary School at 1512 Santa Ana Boulevard. The O & M Facility would store hazardous materials /waste primarily for cleaning and routine maintenance of the streetcars and tracks and would likely house cleaning chemicals, lubrication oils, and hydraulic oils. However, the storage and disposal of hazardous materials /waste would be conducted in accordance with all federal and State regulatory 11 January 2015