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Chapter 4-Site-Specific /ndtiai Storm Water BMPs <br />I What Are They <br />Drip pans are small depressions or pans used to contain very small volumes of leaks, drips, and <br />spills that occur at a facility. Drip pans can be depressions in concrete, asphalt, or other <br />impenetrable materials or they can be made of metals, plastic, or any material that does not react <br />with the dripped chemicals. Drip pans can be temporary or permanent. <br />Drip pans are used to catch drips from valves, pipes, etc. so that the materials or chemicals can be <br />cleaned up easily or recycled before they can contaminate storm water. Although leaks and drips <br />should be repaired and eliminated as part of a preventive maintenance program, drip pans can <br />provide a temporary solution where repair or replacement must be delayed. In addition, drip pans <br />can be an added safeguard when they are positioned beneath areas. where leaks and drips may <br />occur. <br />Use Drip Pans for Leaking Equipment <br />Use Drip Pans in Loading and Unloading Areas <br />FIGURE 4.6 USES FOR DRIP PANS <br />(Modified from Washington State, 1992) <br />I When and Where to Use Them <br />Drip pans can be used at any industry where valves and piping are present and the potential for <br />small volume leakage and dripping exist. <br />• <br />• <br />?J <br />4-16