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Hi Denisse, <br /> The classes are in virtual format, I have not heard of any onsite classes being performed. <br /> For the waste determination for the metal dross, I noticed that only a TCLP (Toxicity Characteristics Leaching Procedure) <br /> test was performed. Were TTLC (Total Threshold Limit Concentration) and STLC (Soluble Threshold Limit Concentration) <br /> test performed as well? <br /> TTLC and STLC are toxicity characteristics test that the state of California adopted, that may offer different results <br /> compared to TCLP. <br /> TCLP is a federally accepted test. <br /> Feel free to contact me if you have any questions. <br /> Thank you, <br /> JASON GAITAN <br /> EHS <br /> San Joaquin County <br /> Environmental Health Department <br /> (209)468-3420-Office <br /> (209)468-3433-Fax <br /> 1868 E. Hazelton Ave. <br /> Stockton, CA 95205 <br /> From:Vignon-Fernandez, Denisse [mailto:DVIGNON@nwpipe.com] <br /> Sent:Thursday, August 27, 2020 9:57 AM <br /> To: Gaitan,Jason [EHD] <jgaitan@sigov.org> <br /> Subject: RE: Closed container Guideline Inquiry <br /> CAUTION:This email is originated from outside of the organization. Do not click links or open attachments unless you recognize the <br /> sender and know the content is safe. <br /> HI Jason, <br /> Thanks for your reply, are you guys still scheduling classes onsite? Or in a virtual format. <br /> Also, I wanted to verify something with you. You will see attached the waste determination as non-haz for the metal <br /> dross we generate in a cutting operation. For disposal purposes, what options will you recommend? <br /> Please advise. <br /> Denisse Vignon Fernandez <br /> Northwest Pipe Company <br /> 209-666-8967 <br /> From: Gaitan,Jason [EHD] <jgaitan@slgov.org> <br /> Sent:Thursday, August 20, 2020 11:06 AM <br /> 3 <br />