ARCHIVED REPORTS LEC APPLICATION FOR CERTIFICATION

Home Browse Search

5.1 AIR QUALITY 5.1.3.8 Construction Emissions during the construction phase of the project have been estimated,including an assessment of emissions from vehicle and equipment exhaust and the fugitive dust generated from material handling. A detailed analysis of the emissions and ambient impacts is included in Appendix 5.1E. Construction emissions mitigation and/or control techniques proposed for use at the LEC site include but are not limited to the following: • Operational measures,such as limiting time spent with the engine idling by shutting down equipment when not in use; • Regular preventive maintenance to prevent emission increases due to engine problems; • Use of low sulfur and low aromatic fuel meeting California standards for motor vehicle diesel fuel;and • Use of low-emitting gas and diesel engines meeting state and federal emissions standards for construction equipment,including,but not limited to,catalytic converter systems and Diesel particulate filter systems. The following mitigation measures are proposed to control fugitive dust emissions during construction of the project: • Use either water application or chemical dust suppressant application to control dust emissions from onsite unpaved road travel and unpaved parking areas; • Use vacuum sweeping and/or water flushing of paved road surfaces to remove buildup of loose material to control dust emissions from travel on the paved access road (including adjacent public streets impacted by construction activities) and paved parking areas; • Cover all trucks hauling soil,sand,and other loose materials or require all trucks to maintain at least two feet of freeboard; • Limit traffic speeds on all unpaved site areas to 15 mph; • Install sandbags or other erosion control measures to prevent silt runoff to roadways; • Replant vegetation in disturbed areas as quickly as possible; • Use wheel washers or wash off tires of all trucks exiting construction site;and • Mitigate fugitive dust emissions from wind erosion of areas disturbed from construction activities (including storage piles) by application of either water or chemical dust suppressant. The LEC construction site impacts are not unusual in comparison to most construction sites. Construction sites that use good dust suppression techniques and low-emitting vehicles typically do not cause violations of air quality standards. 5.1-30 SAC/371322/082410013(LEC_5.1_AIR_QUALITY.DOC)