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Haul Roads. Dust control is required on all hauFroads'an'tl unpavedwehicle and equipment traffic areas at construction sites, per Rule 8021 Gonstrucfion,.Demohtion;.Excavation; Extraction, and Other Earthmoving Activities Storage Piles and Bulk-Materials. The handling, storage,;and transportation requirements for bulk materials are found in Rule 8031 -BulkFMaterials These requirements include: E apPlying`wateras materials are handled,°stabrlizmg'or covering stored materials,`and installlhg wind barriers to'llmit VDE: Limiting vehicle speed;,°loading haul.trucks with a freeboard six inches or greater, covering haul trucks, ora plying water to the top of the load are options for reducing VDE from vehicle transportation"-of bulks materials. Demolition. Wetting of.the exterior of a building to be demolished is required. Demolition ` debris and the area around the demolition must also'be controlled to liri• it .,.ed. Cleaning f up carryout and trackout must be completed according to Rule 8041. Demolition activities l are also subject'to'the District's asbestos rule,'Rule 4002-NationalEmission Standards for Hazardous'Air Pollutants. Dust Control Plans. For large construction projects, Rule.8021"requires'the owner or contractor to submit a Dust Control Plan to the District for approval at least'30 days prior to commencing construction activities. This requirement applies to projects that include 40 or more acres of disturbed surface area or will involve moving more than 2,500 cubic yards per day of material on at least three days during the project. Record keeping. All sites subject to the regulation that employ dust control measures must keep records for each day any dust controls are used. The District has developed record keeping forms for water application, street sweeping, and for "permanent" controls such as applying long term dust palliatives, vegetation, ground cover materials, paving, or other durable materials. Pursuant to Rule 8011, records must be kept for one year after the end of dust generating activities. Exemptions. Activities in areas above 3,000 feet elevation are exempt from all Regulation VIII requirements. Th following exemptions in Rule 8021 apply to construction activities, • Blasting activities • Maintenance and remodeling of existing buildings if the addition is less than 50% of the size of the existing building or 10,000 square feet. These activities, however, are subject to the District's asbestos rule, Rule 4002. • Additions to single family dwellings • Mowing, disking or other weed control on sites less than %2 acre. Nuisance. Whether or not the construction activity is exempt from the Regulation Vill requirements, any activity that creates fugitive dust must not cause a nuisance, per Rule 4102 - Nuisance. Therefore, it is important to monitor the dust generating activities and, if necessary, plan for and implement the appropriate dust control measures to limit the public's exposure to fugitive dust. This is a basic summary of Regulation VIII as it applies to the construction industry. For more information contact the Compliance Division of the District office nearest to you.