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(11) <br /> <br />(12) <br /> <br />(13) <br /> <br />(14) <br /> <br />05) <br /> <br />(16) <br /> <br />(17) <br /> <br />(18) <br /> <br />"Lethal Dose Median" ("LDM 50 ") means the dose at which 50 percent of <br />test animals die following exposure. The lethal dose is given in <br />milligrams per kilogram of body weight of the test animals. <br /> <br />"Lethal Dose Low" ("LDLo") means the lowest dose of a chemical at <br />which some test animals died following exposure. <br /> <br />"Material Hazard Index" CMHI") means a numeric value used for ranking <br />of chemical substances (materials) in order to determine the level of <br />controls necessary for regulated materials. MHI is determined by dividing <br />the EVC ora material at 25 degrees C by the LOC for the material, as <br />shown in the following equation: <br /> <br />MHI = EVC (PPM) AT 25 degrees C <br /> LOC (PPM) <br /> <br />"Minimum Threshold Quantity" ("Min. T.Q.") means the aggregate <br />quantity in a control area which, due to the minimal aggregate quantities <br />present, need only comply with specific control requirements established <br />in subsection 89.401(e) of this article, and not with the requirements for <br />Class I, II, or III regulated materials. Min. T.Q. for mixtures shall be <br />based on the aggregate weight (in pounds) of the regulated components. <br />Min. T.Q. = 2 lbs. or less. <br /> <br />Minimum threshold quantity controls are set forth in subsection 89.401 (e) <br />of this article. <br /> <br />"Persons" means an individual, trust, finn, joint stock company, <br />corporation, partnership, association or other business entity, city, county, <br />district, the state, any depar~ent or agency thereof, or the United States, <br />to the extent authorized by law. <br /> <br />"Regulated Materials" means all materials, regardless of form (i.e., liquid, <br />solid or gas) which meet the criteria established by subsection 89.201 (b), <br />below. <br /> <br />"Responsible Persons" or "Persons Responsible" means pennittees under <br />this article, owners, managers and persons responsible for the day-to-day <br />operation of any facility subject to this article. <br /> <br />"Unauthorized Discharge" means releasing spilling, leaking, pumping, <br />pouring, emitting, emptying, injecting, escaping, leaching, dumping or <br />disposing a regulated material into the environment, including any sewer, <br /> 112 <br /> <br /> <br />