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r r r �r rr r r rr rr r rr r r r r r rr i■r r Draft Supplemental Environmental Impact Report Page II-17 Forward Inc. Landfill 2018 Expansion Project trackout. Enhanced and additional control measures for construction emissions of PM,o shall be implemented where feasible.These measures include: • Limit traffic speeds on unpaved roads to 15 mph by signage and electronic speed monitoring devices. • Install sandbags or other erosion control measures to prevent silt runoff to public roadways from sites with a slope greater than one percent. • Install wheel washers for all exiting trucks, or wash off all trucks and equipment leaving the site. • 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 ROG emissions from construction equipment,which may include: • Require construction equipment used at the site to be equipped with catalysts/particulate traps,or Tier 4 diesel engines to reduce particulate emissions. 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 diesel- fueled construction equipment used is equipped with particulate filters catalysts,or Tier 4 diesel engines,or prove why it is infeasible. • Use alternative fueled construction equipment,where feasible.