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r SanJoaquinValley 3 Air PoHufdon Control Distri t COMPLIANCE ASSISTANCE BULLETIN September 2002 (Update from June 2002) Fugitive Dust Control at Construction Sites s Regulation.VIII, Fugitive PM10 Prohibitions, of the District's Rules and Regulations' regulates activities that generate fugitive dust. .Fugitive dust is emitted to theair from open ground or caused by activities such as excavation,transporting bulk materials, or travel on unpaved surfaces. "PM 10" is a term applied to small sized particulate matter-microscopic i dust particles-in the air. The San Joaquin Valley currently exceeds the air quality standards for particulate matter. It is for this reason that the District adopted Regulation VIII in 1993. Significant amendments to-Regulation VIII were adopted in 2001 and became effective May 15, 2002. The following dust control and administrative requirements are applicable at construction sites: Visible Dust Emissions (VDE). Visible dust emissions may not exceed 20% opacity during periods when soil is being disturbed b equipment or wind at an time. Dust may be achieved by means of a � Y control areas, phasing work to limit dust..and setting upwindfences t fore and glimit w1 d bearth work and on traffic Opacity of 20% means the amount of dust that would obstruct the view of blown by 20 0. Soil stabilization. Soil stabilization is required at any construction site after normal working hours and on weekends and holidays. This requirement also applies to inactive f construction areas such as phased projects where disturbed land is left unattended. i plying water to form a visible crust on the soil is an effective method for stabilizing a disturbed surface area Long-term methods include applying dust suppressants or establishing vegetative cover, Restricting vehicle access from the area will help to,maintain a stabilized surface. Information regarding stabilization standards and test methods are in Rule 8011 —General Requirements. Carryout and Trackout: These requirements are hound in Rule 8041 —Carryout and Trackout. Carryout and t n Gkout are materials adhered to vehicle tires and trap sort vehicles carried from a construction site and deposited onto a paved public road pSould carryout and trackout occur, it must be-cleaned up at feast daffy, and immediately if M extends more than 50 feet from the exit point onto a paved road. The recommended dean- up methods include manually sweeping, sufficiently wetting the area prior to mechanical sweeping to limit VDE or using a PM10-efficient street sweeper. A blower device or sweeping with any mechanical device Other than a PMI(?-efficient street sweeper is dry Prohibited. ' Norlfent f�eninn C)Ifrcr .�l:j(7 lCiernarY Avcrnrc', Suifr. !'H! l.:cn�ra!f2c'f;ion (1Flie[a ee,.,r, .. r , - 1990 rar I(;r'frF.. .... Southern Region office.