Dust Control Methods Washington

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Publication and Contact Information, This report is available on the Department of Ecology s website at. https fortress wa gov ecy publications summarypages 96433 html. This document was previously published under the title Techniques for Dust Suppression. For more information contact,Hazardous Waste and Toxics Reduction Program. P O Box 47600,Olympia WA 98504 7600,Phone 360 407 6700. Washington State Department of Ecology www ecy wa gov. o Headquarters Olympia 360 407 6000,o Northwest Regional Office Bellevue 425 649 7000. o Southwest Regional Office Olympia 360 407 6300,o Central Regional Office Yakima 509 575 2490.
o Eastern Regional Office Spokane 509 329 3400,Accommodation Requests. To request ADA accommodation including materials in a format for the visually impaired call. the Hazardous Waste and Toxics Reduction Program 360 407 6700 Persons with impaired. hearing may call Washington Relay Service at 711 Persons with speech disability may call. TTY at 877 833 6341,Table of Contents,Why is Dust a Problem 2. Controlling Dust Emissions 3,Chemical Dust Suppression 5. Prepare a Dust Control Plan 7,Cost of Dust Suppression Projects 7. Dust Program Savings and Benefits 8,Washington Regulations Related to Dust Control 8.
Information and Resources 11,Why is Dust a Problem. Dust can contain soil ash soot salts pollen and Dust contributes to. spores and a host of other materials depending,Health and respiratory. on the location and activity causing the dust,For example dust from construction sites. Vehicle accidents from low,industrial areas agricultural operations or. visibility,roadways might contain pesticides heavy.
metals asbestos bacteria fungi and a variety Impacts to fish and other. aquatic life,of other contaminants Dust particles are very. small and easily inhaled Even short term Impacts to soil and. exposure to dust can cause respiratory vegetation, problems and allergic reactions Impacts to water quality. Vehicle and equipment, Dust emissions also contribute to air pollution erosion. significantly Outdoor dust occurs throughout Lowered property values. Washington especially in dry areas like Eastern,Lowered quality of life. Washington At various times of the year dry, weather conditions and wind can cause big dust Complaints from the public.
storms but there are many other common,sources of dust emissions as well. Sources of dust emissions include,Agricultural field operations Storage piles. Parking lots or feed lots Masonry,Rural areas Landscaping. Waste cleanup sites Paved and unpaved roads, Industrial facilities Transportation and track out. Land clearing Activities on vacant land,Construction activities Equipment yards.
Demolition activities,Controlling Dust Emissions, Dust emissions can be prevented or reduced in four basic ways. 1 Limit the creation or presence of dust sized particles. 2 Reduce wind speed at ground level,3 Bind dust particles together. 4 Capture and remove dust from its sources, Some dust control techniques work with many sources of dust. Plant or mulch areas that won t received vehicle traffic. Apply gravel or landscaping rock to areas where planting mulching or paving is. impractical, Construct natural or artificial wind breaks or wind screens Consider restricting. landclearing or earthmoving activities during periods of high winds. Apply water to reduce emissions from temporary sources. Clear vegetation only from areas you will work right away. Surface apply chemical suppressants to non trafficked areas to form a less erodible soil. Other techniques are more specific,Unpaved Trafficked Areas.
Lower speed limits High vehicle speed,increases the amount of dust stirred up. from unpaved roads and lots Lowering,the speed of a vehicle from 45 miles per. hour mph to 35 mph can reduce dust,emissions by up to 22 percent. Restrict the number or type of vehicles that can access the road if possible Restricting use. by tracked vehicles and heavy trucks also helps prevent damage to road surface and base. Paved Trafficked Areas, Improve paved material conditions by reducing the use of skid control sand or salt Use. coarse material that isn t easily crushed into powder during snow and ice season. Vacuum or wet sweep fine dirt and skid control materials from paved roads soon after. winter weather ends and at other times as needed, Reduce vehicle track out fill muddy areas with gravel or other surface material install.
grizzlies or build vehicle tire underbody wash stations near unpaved road junctions. Pave or stablize shoulders of paved roads with gravel and vegetation. Provide for stormwater drainage and construct curbing to prevent water erosion onto. paved roads,Upgrade the Road,Increase surface strength by improving particle. size shape and mineral types that make up the,surface and base materials. Add surface gravel to reduce the source of dust,emission Limit the amount of fine particles. smaller than 075 mm to 10 20 percent,Improve drainage and crown the normal slope. toward the outer edge of a road surface, Use geotextile fabrics to increase the strength of.
new roads or roads undergoing reconstruction, Use alternate paved routes if available Paved surfaces produce up to 90 percent less. dust than unpaved surfaces, Apply chemical dust suppressants by blending the product with the top few inches of. surface material Suppressants may also be applied as surface treatments Chemical. treatment can reduce emissions by 30 to 80 percent. Pave or treat permanent haul roads construction sites and parking or staging areas at. commercial municipal or industrial facilities,Other Specific Sources. Apply load control measures like load covering freeboard bed liners and watering. Require prompt clean up of spills,Cover piles with wind impervious fabric. Limit use of off road recreational vehicles on open land Confine operations to specific. areas require permits or prohibit use, For agricultural fields use strip cropping increase soil surface roughness plant wind.
breaks rotate crops reduce tillage plant cover crops limit burning and apply mulch. For feed lots use sprinkler systems surface amendments manure harvesting and. vegetative barriers to control dust and odor,Chemical Dust Suppression. Chemical dust suppressants are commercially, available for use on many types of emission Don t expect a. sources The performance of a product depends on chemical suppressant. many factors to compensate for, Application method and rate deficiencies in surface. Surface moisture content during application characteristics material. Hydrological conditions like site precipitation composition local site. and drainage or climate factors,Mechanical stability of the surface aggregate. Percent of fines in the aggregate mix,Structure of the base and subgrade.
Keep in mind that most of the products designed for trafficked areas are primarily. intended for medium traffic low cost roads that are typically surfaced with gravel Dust. suppression and periodic unpaved road maintenance are normally combined For. unpaved road applications products applied and mixed into the road surface usually work. better than if simply applied to the surface, Evaluate available products against your own The Department of Ecology. specific emission source site performance and cost does not approve. criteria Review the manufacturer s product recommend or endorse. literature safety data sheet SDS and instructions specific products or service. before purchase and prior to use Consider the risk providers However we. to human health or the environment from hazardous can help you in evaluating. characteristics of product ingredients application the environmental safety of. specific products Contact, practices and the environmental characteristics of. your regional office of,Ecology s Hazardous Waste,and Toxics Reduction. Be aware that during preparation or application Program for assistance and. chemical dust suppressants may exhibit hazardous ask about safer. characteristics such as corrosivity or ignitability alternatives. Some products may produce excessive heat when, mixed with water Others may contain toxic or carcinogenic ingredients or contaminants. Observe all safety precautions and follow the manufacturer s directions when handling. mixing and applying chemical suppressants, Any suppressant product or its ingredients may migrate from a treated site due to.
carelessness in application runoff leaching volatility dusting or adhesion to vehicles. In areas where surface water or groundwater is nearby and where stream flow rates are. low adverse environmental impacts are possible, The burden of proof for product safety lies with the chemical manufacturers distributors. and users Ask the vendor whether their product has characteristics or meets criteria that. would cause it to designate as a Washington State dangerous waste as it is applied to the. ground after drying or curing or as a result of biochemical decay. Washington s Globally Harmonized System for Hazard Communication Chapter 296 901. WAC requires chemical manufacturers to obtain or develop an SDS for each hazardous. chemical they produce All employers must have an SDS at the workplace for each. hazardous chemical they use, Do not use undocumented material for dust control All legitimate products have. manufacturer product literature and an SDS that describe the product s ingredients. characteristics recommended use safety practices and limitations of use If Ecological. information SDS Section 12 is not provided on the SDS obtain and review this. information from the manufacturer before making a purchasing decision. Prepare a Dust Control Plan, A good dust control plan can help reduce negative effects from dust At a minimum a dust. control plan should include,Identification of all fugitive dust sources. A description of the dust control method s to be used for each source. A schedule rate of application calculation or some other means of identifying how. often how much or when the control method is to be used. Provisions for monitoring and recordkeeping, A backup plan in case the first control plan does not work or is insufficient.
The name and phone number of the person responsible for making sure the plan is. implemented and who can be contacted in the event of a dust complaint. Be sure to consult with your local Air Pollution Control agency. Cost of Dust Suppression Projects, Developing an effective and cost efficient dust control program means accurately. identifying and accounting for the true costs and savings of any new alternative compared. to your current practices Using unpaved roads as an example the costs can be grouped. into the categories listed below,Road Improvement Costs. Drainage improvements geometric improvements repairing of failed areas excavation. and removal of substandard material and addition of surface material Note These costs. are not part of dust suppression program costs if they would be required anyway without. dust suppression,Surface Preparation Costs, Addition of select material fines or coarse material breaking up and loosening the road. surface watering shaping and compacting,Product Supply and Application Costs. Material cost transportation cost application cost and contract supervisor cost if a. project supervisor is provided by the contractor,Miscellaneous Costs.
Traffic control detour inspection crew supervision material storage if inventory is. maintained and liability costs,Dust Program Savings and Benefits. Road Maintenance and Repair Savings, Less frequent regrading and less frequent need to add supplementary road materials. accrue savings due to reduced loss of gravel and fines and greater durability of the road. Savings from Non road and Off site Benefits, Savings accrued from dust control program benefits not specifically related to the road. itself such as human health vehicles and equipment and the environment. Washington Regulations Related to Dust Control,The following laws apply in Washington. Chapter 70 94 RCW1 Washington Clean Air Act and Chapter 173 400 WAC2. General Regulations for Air Pollution Sources, These statutes require owners and operators of fugitive dust sources to prevent fugitive.
dust from becoming airborne and to maintain and operate sources to minimize emissions. 1 Revised Code of Washington,2 Washington Administrative Code. Chapter 70 95I RCW Used Oil Recycling, Prohibits the use of used oil as a dust suppressant In fact federal regulation 40 CFR Part. 279 Standards for the Management of Used Oil Subpart I prohibits the use of used oil as. a dust suppressant in all 50 states unless a state petitions EPA If you plan to use a. chemical suppressant verify that it does not contain any used oil Used oil is defined as. a lubricating fluids that have been removed from an engine crankcase transmission. gearbox hydraulic device or differential of an automobile bus truck vessel plane heavy. equipment or machinery powered by an internal combustion engine b any oil that has. been refined from crude oil used and as a result of use has been contaminated with. physical or chemical impurities and c any oil that has been refined from crude oil and. as a consequence of extended storage spillage or contamination is no longer useful to the. Some dust control techniques work with many sources of dust lant or mulch areas that won t received vehicle traffic Apply gravel or landscaping rock to areas where planting mulching or paving is impractical Construct natural or artificial wind breaks or wind screens Consider restricting landclearing or earthmoving activities during periods of high winds Apply water to reduce emissions

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