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From: Soua Her<souah@sumidenwire.com> <br /> Sent: Monday,June 3, 2019 1:17 PM <br /> To: Dai,Tricia <tdai@sigov.org> <br /> Subject: RE: Sumiden Wire Corp- 1412 EI Pinal Dr- Return to Compliance Status <br /> Hi Tricia, <br /> I'm having the lab run STLC for chromium. For my own knowledge as I was not able to find this information, if <br /> TTLC is 10x STLC but still under TTLC limit, STLC should still be done? <br /> Oily metal fines. Most (95-98) of fines collected are greater than 100 microns. What test are you requiring to provide. <br /> Are you asking for CAM17 of the metal shaving sample collected or lab verification that the shaving are greater than 100 <br /> microns? <br /> Soua Her <br /> Sumiden Wire Products Corporation <br /> Assistant Plant Manager <br /> 1412 EI Pinal Drive <br /> Stockton, CA 95205 <br /> Mobile 209.313.3755 <br /> Desk 209.467.5136 <br /> From: Dai,Tricia [mailto:tdai@sigov.org] <br /> Sent:Thursday, May 30, 2019 2:12 PM <br /> To: Soua Her<souah@sumidenwire.com> <br /> Cc: Backus, Garrett<gbackus@sigov.org> <br /> Subject:Sumiden Wire Corp- 1412 EI Pinal Dr- Return to Compliance Status <br /> Hello Soua, <br /> I would like to let you know that we have closed out all your open violations except for three due to the <br /> following reasons: <br /> Item#102 CCR 66262.11 Failed to determine if a waste is a hazardous waste. Any person who generates a <br /> waste shall determine if the waste is a hazardous waste. Immediately, make a hazardous waste <br /> determination for the following wastes, and manage it according the Title 22 hazardous waste regulations. <br /> i. Use drawing lube need STLC testing because TTLC copper result is more than 10 times the STLC limi <br /> on 4/15/2019 test result. See attached results. <br /> TTLC chromium levels is more than 10 time the STLC limit. STLC testing should be done for the <br /> chromium to demonstrate the used drawing lube is non-hazardous. <br /> j. Parts washer waste in the maintenance shop. The parts washer uses the material <br /> Bio-Circle L which is non-hazardous per SDS. However, when the liquid cleaning agent is no longer <br /> effective and because it has come in contact with oil and. or has become oily water solution, the <br /> liquid is pumped into the oily water container to be process by an authorized facility. <br /> Please provide additional information. Will the oily water solution pumped into an oily water <br /> container, be labeled and disposed of as hazardous waste? <br /> 2 <br />