SU0007861 - Laserfiche WebLink

Home Browse Search

Draft Environmental Impact Report Page IV.D-18 Forward Landfill Expansion increase of approximately 6,104 cubic feet per minute of landfill gas generation compared to the maximum estimated generation rate under current permitted conditions. The project includes anew or expanded landfill gas-powered electrical generating plant. If that plant is not built, or until such a time as it is built,landfill gas would be flared. Therefore, the following impact assessment includes both flaring and landfill gas energy Fiplants options. Impact IV.13.1. Initial construction activities for the expansion area associated with development of the project would generate short-term emissions of criteria pollutants, including suspended and inhalable particulate matter (PM,fl) and equipment exhaust emissions. Periodic and temporary construction activities(not specifically related to operations) during the extended life of the landfill would include earthmoving, paving, possible dewatering,various new construction including the new drainage and leachate collection systems, and painting. Preparation of the proposed leachate collection system over the ' top of the existing Austin Road Landfill would require new construction. F M PM,p emissions from construction would vary greatly from day to day depending on the t level of activity,the equipment being operated,the silt content of the soil, and the prevailing weather. Larger diameter dust particles (i.e., greater than 30 microns) generally fall out of the atmosphere within several hundred feet of construction sites, and represent more of a soiling nuisance than a health hazard. Smaller-diameter particles (e.g., PM,J are associated with adverse health effects and generally remain airborne until removed from the atmosphere by moisture. Therefore, unmitigated construction dust emissions I, could result in significant local effects. The SJVAPCD recommends that determination of { significance with respect to construction impacts be based not on quantification of emissions and comparison to thresholds,but upon inclusion of feasible control measures for PM,,)and compliance with Regulation VIII, Rule 8011, of the District's Rules and F Regulations. For all construction projects,implementation of all Regulation VIII fugitive dust control 1 measures are required by law. Based on the size of the construction area and proximity to receptors, additional measures may be required,as described within Mitigation Measure IV.D.1.Implementation of the Regulation VIII fugitive dust control measures and all F1 additional feasible measures would reduce construction PM10 emissions associated with i the project to a less than significant level, based on the short-term exposure of any single sensitive receptor to residual fugitive dust emissions. FConstruction equipment and construction worker commute vehicles would also generate criteria air pollutant emissions. Criteria pollutant emissions of ROG and NOX from these emissions sources would incrementally add to regional atmospheric loading of ozone kipprecursors during the construction period. The SJVAPCD GAMAQI recognizes that construction equipment emits ozone precursors,but indicates that such emissions are not considered to be significant unless the project construction is very large or very intense. r Therefore, this impact would be less than significant. Mitigation Measure IV.D.I: The applicant shall comply with Regulation VIII Rule 8011 Fand implement the following control measures during construction: • The applicant shall submit a Dust Control Plan subject to review and approval of the SJVAPCD at least 30 days prior to the start of any construction activity on a Fsite that includes 40 acres or more of disturbed surface area. 4 I fff