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• • <br />Chapter 4-Site-Specific Industrial Storm Water BMPs <br />• When using curbing for runoff control, facilities should protect the berm by limiting traffic and <br />installing reinforced berms in areas of concern. <br />• <br />U_j <br />Spills of materials that are stored within a curbed area can be tracked outside of that area when <br />personnel and equipment leave the area. This tracking can be minimized by grading within the <br />curbing to direct the spilled materials to a down-slope side of the curbing. This will keep the <br />materials away from personnel and equipment that pass through the area. It will also allow the <br />materials to accumulate in one area making cleanup much easier. <br />Inspections should also be conducted before forecasted rainfall events and immediately after storm <br />events. If spilled or leaked materials are observed, cleanup should start immediately. This will <br />prevent overflows and/or contamination of storm water runoff. In addition, prompt cleanup of <br />materials will prevent dilution by rainwater, which can adversely affect recycling opportunities. <br />Inspection of curbed areas should be conducted regularly, to clear clogging debris. Because <br />curbing is sized to contain small spill volumes, maintenance should also be conducted frequently to <br />prevent overflow of any spilled materials. <br />Advantages of Curbing <br />• Is an excellent method to control runon <br />• Is inexpensive <br />• Is easily installed <br />• Materials spilled within curbed areas can be recycled <br />• Exists as a common industry practice <br />Disadvantages of Curbing <br />• Is not effective for holding large spills <br />• May require more maintenance than diking <br />4-15