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Panera Bread Stormwater Management Report Everett,WA <br /> Required BMPs <br /> 1. Sprinkle or wet down soil or dust with water as long as it does not result in a wastewater <br /> discharge. <br /> 2. Only local and/or state government approved dust suppressant chemicals shall be used, such <br /> as those listed in Ecology publication No. 96-433, "Techniques for Dust Prevention and <br /> Suppression." See BMP C126, Polyacrylamide for Soil Erosion Protection, in Volume II of this <br /> manual. <br /> 3. Avoid excessive and repeated applications of dust suppressant chemicals.Time the <br /> application of dust suppressants to avoid or minimize their wash-off by rainfall or human <br /> activity such as irrigation. <br /> 4. Apply stormwater containment to prevent the conveyance of sediments and or dust <br /> suppressant chemicals into storm drains or receiving waters. <br /> 5.The use of motor oil for dust control is prohibited. Care should be taken when using lignin <br /> derivatives and other high BOD chemicals in excavations or areas easily accessible to surface <br /> water or groundwater. <br /> 6. Consult with the Ecology Northwest Regional Office on discharge permit requirements if the <br /> dust suppression process results in a wastewater discharge to the ground, groundwater, storm <br /> drain, or surface water. <br /> Suggested BMPs for Roadways and Other Trafficked Areas <br /> 1. Consider limiting use of off-road recreational vehicles on dust generating land. <br /> 2. Consider paving unpaved permanent roads and other trafficked areas at municipal, <br /> commercial, and industrial areas. <br /> 3. Consider paving or stabilizing shoulders of paved roads with gravel, vegetation, or City <br /> approved chemicals. <br /> 4. Encourage use of alternate paved routes, if available. <br /> 5.Vacuum or wet sweep fine dirt and skid control materials from paved roads soon after winter <br /> weather ends or when needed. <br /> 6. Consider using traction sand that is prewashed to reduce dust emissions. <br /> Suggested BMPs for Dust Generating Areas <br /> 1. Prepare a dust control plan. Helpful references include: Control of Open Fugitive Dust <br /> Sources (EPA-450/3-88-088) and Fugitive Dust Background Document and Technical <br /> Information Document for Best Available Control Measures (EPA-450/2-92-004). <br /> 2. Limit exposure of soil (dust source) as much as feasible. <br /> 3. Stabilize dust-generating soil by growing and maintaining vegetation, mulching, topsoiling, <br /> and/or applying stone, sand, or gravel. <br /> Core States Group Page 41 <br />