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with applying water to the top of the load, and covering the cargo compartments are effective measures for reducing VDE and carryout from vehicles transporting bulk materials. Demolition activities require the application of water to the exterior of the-buildings and to unpaved surfaces where materials may fall. Consider all structures slated for demolition as possibly being regulated because of asbestos, per District Rule 4002 - National Emission Standards for Hazardous Air Pollutants. Contact the District well before starting because a 10 working day notice will likely be required before a demolition can begin. Dust Control Plans identify the dust sources and describe the dust control measures that will be implemented before, during, and after any dust generating activity for the duration of the project. Owners or operators are required to submit plans to the District if, at anytime, the project involves: • Residential developments of ten or more acres of disturbed surface area. • Non-residential developments of five or more acres of disturbed surface area. - • Relocating more than 2,500 cubic yards per day of materials on at least three days. Construction activities may not commence until the District has approved the Dust Control Plan. Notification by owners or operators of construction projects that are at least one acre in size and where a Dust Control Plan is not required, must provide written notification to the District at least 48 hours in advance of any earthmoving activity. Record Keeping is required to document compliance with the rules and must be kept for each day any dust control measure is used. The District has developed record forms for water application, street sweeping, and "permanent" controls such as applying long term dust palliatives, vegetation, ground cover materials, paving, or other durable materials. Records must be kept for one year after the end of dust generating activities (Title V sources must keep records for five years). Exemptions exist for several activities. Those occurring above 3,000 feet in elevation are exempt from all Regulation VIII requirements and Rule 8021 - Construction, Demolition, Excavation, Extraction, and Other Earthmoving Activities exempts the following construction and earthmoving activities: • Blasting activities permitted by California Division of Industrial Safety. • Maintenance or remodeling of existing buildings provided the addition is less than 50% of the size of the existing building or less than 10,000 square feet (due to asbestos concerns, contact the District at least two weeks ahead of time). • Additions to single family dwellings. • The disking of weeds and vegetation for fire.prevention on sites smaller than % acre. • Spreading of daily landfill cover to preserve public health and safety and to comply with California Integrated Waste Management Board requirements. Nuisances are prohibited at all times because District Rule 4102 - Nuisance applies to all construction sources of fugitive dust, whether or not they are exempt from Regulation VIII. It is important to monitor dust- generating activities and implement appropriate dust control measures to limit the public's exposure to fugitive dust. For more information please contact the Compliance Division of the District office nearest to you. Information on Regulation VIII, where you may obtain copies of record keeping forms, the Dust Control Plan template, and the Construction Notification form, is available on the District's website at: www.valleyair.org