Dust-Control Watering Volume and Truck Trips
Gallons a water truck spreads on a haul road and the trips to keep the fugitive-dust permit satisfied: gallons = area/9 x rate (gal/sy); trips = ceil(gallons / truck capacity). A 2,000 ft x 20 ft road at 0.5 gal/sy is 2,222 gal an application (one 4,000-gal load); at six passes a day that is ~13,300 gal over six trips. The dust plan and AHJ air permit set the rate and frequency; frequency, not area, drives the water budget.
Formula and source
area_sy = length_ft x width_ft / 9; gal_per_app = area_sy x rate_gal_per_sy; trips_per_app = ceil(gal_per_app / truck_cap_gal); daily_gal = gal_per_app x applications_per_day.
Dust-control watering identity by name (gallons = area x rate; trips = ceil(gallons / capacity)); first-principles volume arithmetic.
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