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Sequoia Ecological Consulting, Inc. CalVTP Project-Specific Analysis and Addendum Augustin Bernal Community Park Fuel Reduction November 2025 4-94 4.16.1. Discussion 4.16.1.1. Impact WIL-1 The Project would create and maintain a 162-acre reduced fuel zone within and adjacent to Augustin Bernal Community Park on Pleasanton Ridge in Alameda County, California. The Project would reduce ladder fuels within a shaded fuel break and WUI, ranging from 100 to 400 feet wide, creating safer fire road access for first responders and community members. Initial and maintenance treatments would include prescribed burning (pile and broadcast) and mechanical treatments, which could result in temporary risks associated with uncontrolled wildfire, accidental wildfire ignition, or risk of a prescribed fire escaping its control lines. The CalVTP PEIR found wildfire risk during treatment implementation to be a less-than-significant impact because activities are conducted under strict safety protocols and planning that prevent increased fire hazards. The Project is covered under the PEIR because prescribed pile and broadcast burning, along with the use of heavy equipment in vegetated areas, are activities included within its scope. SPRs HAZ-2, HAZ-3, HAZ-4, and AD-3 would be implemented to reduce the risk of exposure to wildfire by requiring spark arrestors on mechanical hand tools, requiring crews to carry one fire extinguisher per chainsaw, prohibiting smoking in vegetated areas, and requiring consistency with local plans, policies, and ordinances. Based on the implementation of the SPRs, the potential to substantially exacerbate fire risk and expose people to uncontrolled spread of wildfire would be less than significant and within the scope of the PEIR. The inclusion of approximately 93 acres of land that is outside the CalVTP treatable landscape in the proposed treatment area constitutes a change to the geographic extent presented in the PEIR. However, within the boundary of the project area, the wildfire risk of the project area is essentially the same within and outside the treatable landscape; therefore, the wildfire impact is also the same, as described above. This determination is consistent with the PEIR and would not constitute a substantially more severe significant impact than covered in the PEIR. 4.16.1.2. Impact WIL-2 Initial and maintenance treatments would include prescribed burning (pile and broadcast), mechanical treatment using motorized equipment, and prescribed herbivory. The CalVTP PEIR found post-fire flooding, erosion, and landslide risks to be a less than significant impact because treatments are designed to reduce fuel loads and are implemented with erosion control measures and site-specific planning that minimize soil disturbance and runoff. The Project is within the scope of the PEIR, as its activities are consistent with those analyzed in the document. Mechanical treatment activities would occur predominantly on slopes below 40 percent grade and along ridges and may occur on slopes greater than 40 percent grade with equipment that can reach target vegetation from existing road infrastructure.