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Dai, Tricia From: Dai, Tricia Sent: Tuesday, June 4, 2019 12:47 PM To: 'Soua Her' Subject: RE: Sumiden Wire Corp - 1412 EI Pinal Dr - Return to Compliance Status Hello Soua, Thank you for having the lab sun an STLC for Chromium. TTLC and STLC are used when determining the hazardous waste characterization under California State regulations as outlined in Title 22 of the California Code of Regulations (CCR). By rule of thumb if the TTLC results are 10 times the STLC limit STLC analysis should be done. If any substance in the waste analyzed equals or exceeds 10 times the STLC value, it is considered a hazardous waste. C 0 t1Cpc. c'. estlaw.cvin(e31leg5(flDeament/1156C2f2o23A31t PPA64FlfBC4Fd3A46E6?��e1HType=FullTe�[&aci�itiationLunte#=Hoa+mentluc3'lransitiunType=Cat. 'aveltehl&[aril lYData=(SC.C)efaWtl e Hame Tabledf Contents Appendix II 22 GA ADC Appendix II BARCLAYS OFFICIAL CALIFORNIA CODE OF REGULATIONS Barclays Official California Cade of Regulations Currentness. Title z.Sacial Secarity Dh cion 4.5.Encfionmeatal Health standards for the NI-gemeal of Hazardous Waste Chapter u.Identification and Listing of Hazardous Waste Article j.Categories of H—dons Wa_.te 2a CCR Appendix iI Appeudix II Waste Extraction Test(WET)Procedures (a)The Waste Extraction Test(WET)described In this appendix shall be used to determine the amount of extractable substance in:a waste or other material as set forth in section 68261.24(a)(2) (b)Except as provided Iri subdivision(d)of this appendix.the.VVT�T shall be carried out If the total concentration In the waste or other roaterial,of any substance listed in section 66261.24(a)(2)equals or exceeds the STLO value.but does not exceed the TTLC value,given for that substance.The total concentratons of substances is€ed in secflon 66261 24(a)(2)shall he determined by analysis of samples of wastes,or other materials_which have bean prepared,or meet the conditions_tar analysis as set forth in subdivisions(c)and(d)of this appendix Methods used for analysis for total concentrations of substances listed lr section 66261 24(a)(2)shall be those given In the following documents or alternate methods that have been approved by the Ceparimenl pursuant to section 66260.21: For the oily metal fines, you may first test the metal fines for particle size and if it is determined that all fines are larger than 100 microns all we would the EHD would only require the receipt for metal fine recycling. If it is determined that there are metal fines that are less than 100 microns. The fines should be tested for metal content (CAM17) that could possibly make ensure they are not hazardous before they can be disposed of by recycling. Sincerely, Tricia Dai Environmental Health Specialist San Joaquin County Environmental Health Department 1868 E. Hazelton Avenue Stockton, CA 95205-6232 (209) 468-0331 Please note my email address has changed to tdai@sigov.or 1