A Type B4 permit shall be required for all commercial hauling activities using county roads when the total amount of material entering or leaving a site is greater than or equal to 10,000 cubic yards; except that commercial hauling in connection with pit and quarry operations conducted pursuant to a county approved conditional use permit may be exempt from needing a Type B4 permit if the conditional use permit so provides. A Type B4 permit may be required for other commercial hauling activities using county roads if the engineer determines that the commercial hauling activity at issue may cause a need for additional maintenance or repair of county roads or portions thereof. For the purposes of this section "additional maintenance" means any grading, reshaping, repair, and/or modification of haul roads in excess of or in addition to the routine maintenance operations performed by the county on such roads on a regular basis. (Added by Amended Ord. 12-001, Feb. 15, 2012, Eff date Feb. 26, 2012).