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RECEIVED LG 166- GUIDELINES FOR TESTING SPILL BUCKETS JUL 9 9 Z ftclosure 1 ENVIRONMENTAL HEALTH owners and operators should submit spill bucket test results(pass or fail)to the local U3JEr TWNT agency within 30 days of the completion of the test. Additionally,UST owners and operators must maintain test results on-site or off-site at a readily available location,if approved by the local UST regulatory agency,for a period of at least three years, as is required by CCR,Title 23, Section 2712(b). Part IV: Management of Hydrostatic Test Fluids A. Classification of Test Fluid.Thorough cleaning of spill buckets prior to testing will minimize contamination of the test fluid. In order to reduce the amount of hazardous waste generated from hydrostatic spill bucket testing,the Department of Toxic Substances Control (DTSC)recommends using new test fluid whenever possible. If the spill bucket is cleaned of all hazardous substance residues prior to the beginning of the test,the test fluid will typically not become hazardous waste. B. Reuse of Test Fluid. If all hazardous substance residue is not cleaned from the spill bucket prior to the beginning of the test, or if the test fluid is used or reused repeatedly and contaminants build up in the test fluid, then the test fluid may become hazardous. Test fluid that is reused is not considered to be waste pursuant to U.S.EPA' s "continued use"policy,provided that the test fluid is not disposed of,burned or incinerated,accumulated speculatively, or reclaimed. The hazardous waste generators shall determine if the test fluid is a hazardous waste. More information regarding hazardous waste determination can be found in CCR,Title 22, Section 66262.11. C. Leakage of Test Fluid.If the test fluid is reused and the test fluid leaks from the spill bucket during a test(i.e.,the test fails), or if it is otherwise accidentally disposed of to the environment,the hazardous waste generator must take all appropriate measures to address the release(e.g.,implement the facility' s emergency response/contingency plan). D. Disposal and Transportation of Test Fluid.If the test fluid is reused,immediately following its final reuse,the generator must classify the test fluid pursuant to CCR,Title 22, Section 66262.11. If the reused test fluid is hazardous waste, it must be managed in accordance with all applicable requirements. Hazardous waste generators may accumulate hazardous wastes in closed tanks or containers, and must complete a Uniform Hazardous Waste Manifest and use a registered hazardous waste transporter to transport the hazardous waste to either a permitted hazardous waste facility or to another location authorized to accept the waste. The disposal of hazardous waste is not allowed without a permit from DTSC. Hazardous waste generators who wish to conduct hazardous waste treatment on-site must first obtain a permit per CCR,Title 22, Section 66270.1 or HSC, Section 25189.5. Note: Hazardous waste may not be disposed of to sewers, storm drains, surface waters, or to the land without a permit from DTSC and the Regional Water Quality Control Board. S A hazardous waste generator is defined in CCR,Title 22,Section 66261.2. 4