PERMFILE63863

• Permit No: M1980002
• IBM Index Class Name: Permit File
• Doc Date: 1/15/1980
• From: IMPACT
• To: MLR
• Media Type: D
• Archive: No

~~ ~ ~
.8 = factor to account for actual
i truck speed of 15 mph
2.5 = factor to account for 10 sets
of wheels on truck
p = percentage of suspendible particles = .62
(for gravel)
E = 2.5 (.8) (.62) (.81
_ .63 lbs/VMT
7%) (40/30) (3636520)
Emissions based on 100 trips per day (maximum)
2.5 miles per round trip, 260 days per year;
E _ (.63 lbs/VMT) (100 trips/day) (25 miles/trip) (260 days/yr)
(1 ton/2000 lbs)
= 20.5 tons/year
6. Scraper Operation
The scraper is conservatively estimated to operate 8 hours per day.
From reference 3, the emissions factor for a scraper:
EF = 16 lb/scraper hour
Emissions = EF (8 hrs/day) (260 days/year) (1 Ton/2000 lb)
= 16.6 tons/year
Total Uncontrolled Emissions
The total yearly uncontrolled emissions are predicted to be 89.4
tons.
Planned Controls
If conditions warrant, haul roads will be watered to control dust
emissions.