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Sequoia Ecological Consulting, Inc. CalVTP Project-Specific Analysis and Addendum Augustin Bernal Community Park Fuel Reduction November 2025 4-71 SPRs HYD-5, HAZ-5, HAZ-6, and HAZ-7, are described in Impacts HYD-1 through Impact HYD-3. SPR HYD-5 prohibits non-aquatic herbicide formulations from being applied within 50 feet of a waterbody or riparian area and prohibits application during precipitation or within 24 hours of forecasted precipitation. SPRs HAZ-5, HAZ-6, and HAZ-7 ensure that a spill prevention and response plan is implemented, that herbicide application regulations are followed, and that herbicide containers are triple rinsed. These SPRs avoid and minimize the risk of substantial water quality degradation by implementation of herbicide treatment, thereby making the impacts less than significant. The inclusion of approximately 93 acres of land that is outside the CalVTP treatable landscape in the Project constitutes a change to the geographic extent presented in the PEIR. As mentioned in Impact HYD- 1, a few segments of the project treatment areas that are located outside the CalVTP treatable landscape are in close proximity to waterbodies entirely or partially outside the treatable landscape boundary. However, within the boundary of the project area, the existing environmental conditions present in the areas outside the treatable landscape are essentially the same as those within the treatable landscape because they have similar environmental conditions and the same regulatory setting. Potential impacts outside the treatable area are within the scope of the activities and impacts addressed in the PEIR because the methods of herbicide application, transportation, storage, and disposal are consistent with those analyzed in the PEIR with implementation of the same SPRs. This determination is consistent with the PEIR and would not constitute a substantially more severe significant impact than what was covered in the PEIR. 4.10.1.5. Impact HYD-5 Some of the project treatments could cause ground disturbance and minor erosion, which could directly or indirectly modify existing drainage patterns. The PEIR analyzed the potential for treatments to violate water quality standard regulations or degrade water quality, and the impacts were found to be less than significant. As described in the PEIR, these activities would have minor impacts to on-site drainage with implementation of SPRs. The potential impacts are within the scope of the activities and impacts addressed in the PEIR because the use of equipment and treatment activities are consistent with those analyzed in the PEIR. SPRs applicable to this treatment are AD-3, BIO-4, GEO-1 through GEO-7, HYD-1, HYD-2, HYD-4, and HYD-6. All applicable SPRs listed are described in Impacts HYD-1 through HYD-4. These SPRs would avoid and minimize the risk of substantial alteration of the existing drainage pattern, thereby making the impact less than significant. The inclusion of approximately 93 acres of land that is outside the CalVTP treatable landscape constitutes a change to the geographic extent presented in the PEIR. As mentioned in Impact HYD-1, a few segments of the project treatment areas that are located outside the CalVTP treatable landscape are in close proximity to waterbodies entirely or partially not outside the treatable landscape boundary. However, within the boundary of the project area, the existing environmental conditions present in the areas outside