COMPLIANCE INFO_PRE 2019 - Laserfiche WebLink

Home Browse Search

The combined ozone precursor emissions of all the Project components that contribute to emissions of ozone precursors discussed in Impacts 4.1-1 to 4.1-5 of the Draft EIR are presented below. This includes each Project component along with its unmitigated and mitigated emissions. Project emissions of NOx and VOC will exceed thresholds of significance levels of 10 tons per year for each pollutant after mitigation with NOx at 41.93 tpy and VOC of 12:74`tpy. Therefore the Projec woul-d-have a significarif - - --- and unavoidable impact on air quality. Findm The impacts to air quality due to total emissions of ozone precursors (NOx, VOC) are considered significant and unavoidable. All feasible and reasonable changes or alterations have been required in, or incorporated into,the project that substantially lessen the potentially significant effect as identified in the Final EIR. Brief Explanation of the Rationale for the Finding CEQA requires that all feasible and reasonable mitigation measures be applied to the project to reduce the impacts from construction and operation on air quality. Implementation of Mitigation Measures 4.1-1, 4.1-2, 4.1-3, 4.1-4 and 4:1-5, described in detail above, would reduce emissions from criteria pollutants, including NOx and VOC. No other reasonable or feasible mitigation has been identified that will reduce impacts to air quality for the project. Potential Significant Effect Without appropriate mitigation, the project has the potential to significantly impact air quality due to an increase in fugitive particulate matter emissions from offroad disposal activities. Description of Specific Impact Disposal activities result in fugitive dust emissions from activities such as travel on unpaved haul roads, material handling such as loading and unloading of trucks and scrapers with soil overburden from adjacent existing soil overburden stockpiles or waste streams, grading and waste compaction. Fugitive dust emissions from these types of activities were calculated using EPA recommended predictive emission factor equations. Disposal activities also result in windblown dust from disturbed surfaces. Windblown dust emissions were calculated using procedures recommended in EPA AP42, Chapter 13. Local climatology data required for the calculations was obtained from the Bakersfield Meadows Field Station(BFL). Fugitive dust emissions will be controlled using wet suppression on unpaved roads and by complying with SJVAPCD Regulation - VIII. Note that the analysis below is conservative, because it recognized that the baseline case emissions were controlled with wet suppression on unpaved roads to reflect an accurate baseline, as opposed to an inflated one where these reductions were not utilized. This would have reduced the proposed Project's incremental emissions by an inflated amount. 2,000 TPD Case(Disposal Activities) Fugitive dust emissions for the 2,000 tons per day disposal case were calculated by prorating fugitive dust emissions calculated for the baseline disposal rates of 425 tpd. Baseline emissions were prorated using a factor equal to 4.7027 (or 2,000 tpd / 425 tpd). 2,000 tpd case predicted emissions are derived from baseline emissions calculated for disposal of solid waste such as fly ash and should be considered as worst case scenario due to their fine grained nature. -- ------ - - _- __.... ....... . ------ Findings of Fact—Section 15091 March 15,2016 H.M. Holloway Landfill Modification Project Final Board of Supervisors 11