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n cause air pollution include grain dust, sawdust, coal, gravel, crushed rock, cement, and boil- fly <br /> as .Air emissions can contaminate stormwater. The objective of this BMP is to reduce the st. m- <br /> water •ollutants caused by dust generation and control. <br /> Pollutan ontrol Approach: Prevent dust generation and emissions where feasibl:, regularly <br /> clean-up du that can contaminate stormwater, and convey dust contaminated stor► water to <br /> proper treatme ' . <br /> Applicable B 's: <br /> . Clean, as needed, •owder material handling equipment and vehi► es. <br /> . Regularly sweep dust . cumulation areas that can contamin. e stormwater. Conduct sweep- <br /> ing using vacuum filter eq.ipment to minimize dust genera 'on and to ensure optimal dust <br /> removal. <br /> . Use dust filtration/collection sys : s such as bagh•4 se filters, cyclone separators,etc.to con- <br /> trol vented dust emissions that cou • contaminat: stormwater. Control of zinc dusts in rubber <br /> production is one example. <br /> . Maintain on-site controls to prevent vehic >: rack-out. <br /> . Maintain dust collection devices on a r-gular b:sis. <br /> Recommended BMPs: <br /> . In manufacturing operation ,train employees to handle •owders carefully to prevent gen- <br /> eration of dust. <br /> . Use water spray to fl h dust accumulations to sanitary sewer-where allowed by the local <br /> sewer authority or . other appropriate treatment system. <br /> . Use approve• oust suppressants such as those listed in Methods for.ust Control(Ecology, <br /> 201614 Ap. 'cation of some products may not be appropriate in close p • imity to receiving <br /> waters o conveyances close to receiving waters. For more information ch- k with Ecology or <br /> the to : jurisdiction. <br /> Reco ended Treatment BMPs <br /> In .II sedimentation basins,wet ponds,wet vaults, catch basin filters, vegetated filter strips,o equi- <br /> alent sediment removal BMPs. <br /> S411 BMPs for Landscaping and Lawn / Vegetation <br /> Management <br /> Description of Pollutant Sources: Landscaping can include grading, soil transfer, vegetation <br /> planting, and vegetation removal. Examples include weed control on golf course lawns, access <br /> roads, and utility corridors and during landscaping; and residential lawn/plant care. Proper man- <br /> agement of vegetation can minimize excess nutrients and pesticides. <br /> 2019 Stormwater Management Manual for Western Washington <br /> Volume IV-Chapter 4-Page 523 <br />