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California Waste Profile Analysis Summary for <br /> TMT Precipitate <br /> • it is a cyanide or sulfide containing California Exclusions <br /> waste which can generate toxic gases, <br /> vapors,or fumes when exposed to pH <br /> conditions between 2 and 12.5; Is the TMT precipitate a California excluded <br /> material by meeting the definition of one of the <br /> • it is capable of detonation or explosive California exclusions? <br /> reaction if it is subjected to a strong <br /> initiating source or if heated under No. <br /> confinement; <br /> Basis jar Determination: <br /> • it is capable of detonation or explosive TMT precipitate does not fulfill the criteria to qualify <br /> decomposition or reaction at standard for any of the California exclusions. <br /> and pressure;or <br /> • it is a forbidden,Class A,or Class B <br /> explosive as defined at 49 CFR Part California Toxicity <br /> 173. Characteristics <br /> On the basis of process knowledge,TMT precipitate <br /> does not exhibit the characteristic of reactivity because Along with the Federal RCRA toxicity characteristic, <br /> it does not satisfy any of the above criteria. California regulations require waste generators to <br /> consider additional factors when making a toxicity <br /> characteristic determination. The California toxicity <br /> Federal RCRA Toxicity characteristics are contained in Sections <br /> 66261.24(a)(2)through 66261.24(a)(8),Article 3, <br /> Characteristic Chapter 11,Division 4.5,Title 22,California Code of <br /> Regulations(22 CCR). In California,a waste exhibits <br /> a California characteristic of toxicity if it exceeds <br /> Is the TMT precipitate hazardous by the Federal specified concentrations of certain metals and organic <br /> RCRA Toxicity Characteristic(TC)? compounds,based on laboratory analysis,or,it <br /> exceeds stated criteria in several biological tests. The <br /> No. status of TMT precipitate with respect to each of the <br /> California toxicity characteristics is discussed below. <br /> Basis for Determination <br /> The Federal RCRA toxicity characteristic is contained <br /> in Section 66261.24(a)(1)(B),Article 3,Chapter 11, - <br /> Division 4.5,Title 22,California Code of Regulations Is the TMT precipitate hazardous due to the <br /> (22 CCR). A waste exhibits the Federal RCRA presence of a non-RCRA inorganic or non-RCRA <br /> characteristic of toxicity if,using the test methods organic persistent and bioaccumulative toxic <br /> prescribed by EPA,the extract from a representative substance? <br /> sample of the waste contains contaminants at levels of <br /> regulatory concern. The test method is called the No. <br /> Toxicity Characteristic Leaching Procedure,or TCLP. <br /> The TCLP tests for 25 organic chemicals,8 Basis for Determination: <br /> inorganics,and 6 insecticides/herbicides. Based on <br /> process knowledge,silver is the only constituent of Sections 66261.24(a)(2)(A)and 66261.24(a)(2)(B), <br /> concern for TMT precipitate. Article 3,Chapter 11,Division 4.5,22 CCR,contain a <br /> list of California regulated constituents and their <br /> Representative samples of TMT precipitate were corresponding total and soluble threshold limit <br /> subjected to TCLP testing at a California state- concentration values,commonly referred to as TTLC <br /> certified laboratory. ATI of the silver TCLP test results and STLC,respectively. Based on process <br /> were below the maximum allowable silver knowledge,silver is the only regulated constituent of <br /> concentration of 5.0 me. concern for TMT precipitate. <br /> August <br />