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C F kMILY — SLOPE/DRAINSNEGETATION <br /> Nonlandscaped Chemical Vegetation Control <br /> Environmental Concerns <br /> Discharge of the following materials into the storm <br /> water drainage system or watercourse: <br /> Is + Fuel + Sediment <br /> + Non-storm water + Vehicle fluids <br /> + Pesticides <br /> Mireiauze the use of herbicides <br /> Protect drain inlets and watercourses, <br /> DEFINITION AND This method of vegetation control uses pesticides (e.g., herbicides, pre- <br /> PURPOSE emergents) to eliminate and prevent the growth of undesirable vegetation <br /> within the highway right-of-way. Chemical vegetation controls are used to <br /> Protect preferred vegetation, to provide fire protection and to improve <br /> roadside appearance. The activity includes the operation of support <br /> _ y equipment, mixing and loading chemicals and chemical application to <br /> native vegetation. <br /> APPROPRIATE The following procedures are used to prevent, releases of pesticides, <br /> APPLICATION sediment and equipment fluids to storm water drainage system and <br /> watercourses. <br /> LIMITATIONS Vegetation management can result in reduced erosion control effectiveness. <br /> BMP implementation will depend on traffic, weather, available resources <br /> and safety conditions. <br /> OPERATIONAL + This activity shall not be performed during rain events or prior to <br /> PROCEDURES predicted rain events that produce runoff unless required by emergency <br /> conditions. <br /> + A licensed Agricultural Pest Control Adviser (PCA) should approve the <br /> activities. <br /> + Identify drain inlets and watercourses, both upstream and downstream <br /> of the activity site. Protect the drain inlets, storm water drainage <br /> system and watercourses from discharges of potential pollutants. <br /> + Mixing and loading into spray equipment should be in a containment <br /> area away from drain inlets and watercourses. <br /> + Apply pesticides in compliance with federal, state and local pesticide <br /> use regulations as recommended by the District Annual Vegetation <br /> Control Plan. Apply pesticides only as specified on the "Pesticide Use <br /> Recommendation" on the label and as approved by the PCA. <br /> a �7 <br />