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San Joaquin County October 23, 2002 PA-0200377 (QX) Page 2 www.,vallevair.org. The attached Compliance Assistance Bulletin highlights many of the requirements contained within Regulation VIII. The Compliance Assistance Bulletin is not meant to be all-inclusive, but it can be a useful compliance aid in the field and office alike. The following list some of the control requirement from Regulation III. • Rule 8011 General Requirements section 3.37 an excavation for a mining operation which, excluding entrances and egresses, is encircled by a "high-wall' at least 10 feet high. A"high wall' is a berm or cut having a slope of at least 1:1. ' • Rule 8031 Table 1 Load all haul trucks such that the freeboard is not less than six (6) inches when material is transported on any paved public access road, and apply water to the top of the load sufficient to limit visible dust emissions to 20% opacity; or cover haul trucks with a tarp or other suitable cover. _ • Rule 8041 section 5.0 An ownerloperator shall sufficiently prevent or cleanup carryout and trackout as specked in section 5.1 through 5.8. Additionally, the following list highlights some effective measures to reducing PM-10 emissions generated by this facility. • The areas disturbed by clearing, earth moving, or excavation activities should be minimized at all times. All inactive portions of the site must be promptly seeded and watered until vegetation has sufficiently grown to cover bare earth. • All materials transported throughout the site (trucks hauling earth, gravel or other materials to and from the project site) shaii be either sufficiently watered or securely covered to prevent excessive amounts of dust. • All topsoil stored on site must be adequately covered with tarps or soil stabilizers or adequately moistened to minimize the generation of fugitive dust. • When heavy equipment leaves the construction site, all excessive dirt accumulations on the equipment should be cleaned. • On-site vehicle speed should be limited to 15 miles per hour. Vehicle speed control can reduce fugitive dust emissions from unpaved roads and construction areas.