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Air Pnmir AOnfiaaoae Jor lore~ctto Can! Comamtr yeaz. This water truck has a 20,000 gallon capacity, six wheels, an average weight of 64 coat, and an average speed of 5 mph. Mileage each day is estimated as 20 miles. Therefore, annual uncontrolled emissions will be: 8.29 lb/mile * 210 days * 20 miles/day = 34,818 lbs/yr = 17.41 tons/yr The watering "as needed" control is not applicable to water trucks because they will only water on days when precipitation has not occurred. The gravel roads emission reduction factor of 50 percent is applicable to the 10,000 gallon water truck only. Therefore, annual controlled emissions will be: 17.41 tons/yr + 38.17 tons/yeaz * .50 = 27.89 tons/yr Lube/Refill Truck Two Mack DM-800 trucks will be used to refuel vehicles and provide maintenance functions. These trucks will drive approximately 12 miles per day for 255 days per year. The precipitation factor of 0.8219 applies to emissions reduction. The average weight is 54 tore, the average speed is 15 mph, and the vehicles have six wheels. Therefore, annual uncontrolled emissions will be: • 18.11 lb/vehicle mile * 2 vehicles * 255 days * 24 miles/day = 221,666 Ibs/yr = 110.83 tons/yr Annual controlled emissions will be reduced by 75 percent with gravel on roads and watering "as needed". Therefore annual controlled emissions will be 110.83 tons/yr * 0.25 = 27.71 tons/yr Supervisors Pick-up Trucks Four 2.5 ton 4X4 vehicles will be used by supervisors. These vehicles will travel approximately 25 miles per day for 255 days per year at an average speed of 25 mph. Therefore, annual uncontrolled emissions will be: 3.51 Ib/vehicle mile ' 4 vehicles * 255 days * 25 miles/day = 89,505 lbs/yr =44.75 tons/yr Annual controlled emissions will be reduced by 75 percent with gravel on roads and watering "as needed". Therefore annual controlled emissions will be 44.75 tons/yr * 0.25 = 11.19 tons/yr. .,,,,s~N~ ~~. ~~, 28