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From: Garrett Backus[EH] <br /> To: "icreeI(dwildhorses4x4.com";;icreel(alwildhorses4x4.com" <br /> Cc: Elianna Florido <br /> Subject: FW:Wild Horses <br /> Date: Monday,March 11,2019 11:02:00 AM <br /> Attachments: E81-1122.odf <br /> E81-1122 COC.PDF <br /> Title 22 CCR Characteristic of Toxicity.odf <br /> Hi Jim, <br /> To fully characterize the chromium content in your metal fines sample you'll need to have the lab <br /> test by Title (T) 22 California Code of Regulations (CCR) section 66261.24(a)(1). This section <br /> describes the required Toxic Characteristic Leaching Procedure (TCLP)test. This section is attached <br /> to this email. <br /> Your results so far found 920 mg/kg chromium by the Total Threshold Limit Concentration (TTLC) <br /> test (T22 CCR 66261.24(a)(2)). Since 920 mg/kg was found the TCLP (above) and the Soluble <br /> Threshold Limit Concentration (STLC) tests must be done to demonstrate if the waste exceeds the <br /> California and Federal hazardous waste limits or not. The lab found 0.17 mg/kg by the STLC test <br /> which is below the California 5 mg/kg hazardous waste limit. <br /> The TCLP needs to be run to see if the waste exceeds the federal limit for hazardous waste. The <br /> TCLP and STLC are different test procedures and can produce different results, therefore both tests <br /> need to be run. <br /> If the final TCLP test demonstrates the waste to not be hazardous waste then my department will <br /> inactivate the County hazardous waste generator permit. Be aware that when your metal fines <br /> change in composition (you change the metal you are using) they may become hazardous waste and <br /> you'll need to dispose of them as hazardous waste. <br /> Thank you, <br /> Garrett Backus, Ld. Sr. REHS, CUPA programs <br /> San Joaquin County Environmental Health Department <br /> 1868 E Hazelton Ave, Stockton, CA 95205 <br /> (209) 468-2986 (phone) (209) 468-3433 (fax) <br /> gbackus@sjcehd.com http:///www.sjcehd.comJ <br /> This communication and any attachment may contain confidential and privileged information for the use of the designated recipient(s) <br /> named above.Distribution,reproduction or any other use of this transmission by any party other than the intended recipient(s)is <br /> prohibited. If you are not the intended recipient,please contact the sender immediately and permanently delete the original and any <br /> copies of this email and any attachments. <br />