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• • Draft Supplemental Environmental Impact Report Page IV.D-19 • Forward Inc. Landfill 2018 Revised Project • Install wind breaks at windward side(s) of construction areas. • • Suspend excavation and grading activity when winds exceed 20 mph. • • Limit area subject to excavation, grading,and other construction activity at any one time. . The applicant shall implement feasible control measures during construction to mitigate NO, and VOC emissions from construction equipment, which may include: • • Require construction equipment used at the site to be equipped with catalysts/particulate traps to reduce particulate emissions. These catalysts/traps require the use of ultra-low sulfur diesel fuel (15 ppm). Currently, CARB has verified a limited . number of these devices for installation in several diesel engine families to reduce + particulate emissions. At the time bids are made, contractors must show that the construction equipment used is equipped with particulate filters and/or catalysts or prove why it is infeasible. • • Use alternative fueled construction equipment, where feasible. • Replace fossil-fueled equipment with electrically driven equivalents (provided they are not run via a portable generator set). • Curtail construction during periods of high ambient pollutant concentrations;this may include ceasing of construction activity during the peak-hour of vehicular traffic on • adjacent roadways. • • Require that all diesel engines be shut off when not in use on the premises for more than • five minutes to reduce the emissions from idling. Impact D.2.The project would result in an increase in operational emissions of criteria air pollutants from onsite emission sources and increase emissions associated with traffic- . related trips (Revises 2013 EIR Impact D.2. and adds CO discussion to replace 2013 EIR S Impact D.3.). The AQIA10 evaluated how the project would increase criteria pollutant emissions from LFG- derived sources under two scenarios: additional LFG is controlled either by additional flare , capacity (flare scenario) or LFG engines at existing and future LFG to energy facilities (LFG • engine scenario). Two Baseline scenarios were evaluated: Current Actual emissions, determined using 2016 and 2017 operational data; and Current Permitted emissions,based on emissions of landfill sources at maximum permitted levels. • Table IV.D-4 presents net project emissions derived from the AQIA. Project unmitigated impacts for VOC, NOw PMI0,PM2.5and CO would be considered potentially significant under almost all of the Project scenarios presented. Additional information regarding the assumptions and methodologies used in the air emission calculations is available in the AQIA by SCS • Engineers (See Appendix F). The flare scenario would result in lower emissions increases of i t0 SCS Engineers,Air Quality Impact Analysis and Air Toxics Risk Assessment for Proposed Landfill Project Forward Landfill Manteca,California,May 2018.