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California e=nvironmental Protection Agency Ortment of Toxic Substances Control <br /> VIII. HAZARDOUS WASTE INFORMATION FOR ENTIRE SITE <br /> A. 7 Total number of hazardous waste storage units <br /> Number of storage units under full HW facility permit <br /> 1 Number of storage units under standardized permit <br /> B. Total number of hazardous waste treatment units <br /> Number of treatment units under full HW facility permit <br /> Number of treatment units under standardized permit <br /> Number of treatment units under HW permit by rule <br /> Number of treatment units under HW conditional authorization <br /> i Number of treatment units under HW conditional exemption <br /> C. Briefly describe all hazardous waste treatment and/or storage activities to be conducted at the facility. <br /> Include treatment under a full permit, Permit by Rule, treatment under Conditional Authorization, <br /> treatment under Conditional Exemption, and storage and/or treatment under the Standardized Permit. <br /> Annotate the description of each of the storage/treatment activities as Permit By Rule(PBR),Conditional <br /> Authorization (CA), Conditional Exemption (CE),or Standardized Permit(SP)as appropriate. Note that <br /> detailed unit-specific information forms for each unit that is orwill be authorized under the Standardized <br /> Permit are required attachments to this notification. (Modify the form if more spaces are needed) <br /> Aqueous Water with Metals - Phase Separation ( No authorization required ) <br /> Water from the washing of metal parts is normally within the City of Stockton Discharge limitations <br /> as regards metal concentrations.Allowing the metals to drop overnight and filtering the residue, <br /> produces an improved quality of discharge water. <br /> Reduction of Chrome -C.E.S.Q.T <br /> The addition of Sodium metabisulphite followed by sodium hydroxide results in the reduction and <br /> precipitation of the chrome from solution.The precipitate is removed by use of a filter press <br /> Recycling of Acetone to reuse -C.E.S.Q.T <br /> Used acetone is collected after the cleaning of painting equipment.It is recycled in a recycling machine. <br /> The clean acetone is then used to clean paint equipment and the sludge is sent Hazardous waste. <br /> DTSC 1093A(0812006) DRAFT Page 5 <br />