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1.2.3 Health Hazards <br />Materials are considered to be health hazards when there is statistically significant <br />evidence based on at least one study conducted in accordance with established <br />scientific principles that acute or chronic health effects may occur in exposed persons. <br />Materials that exhibit health hazards are within the following categories of hazardous <br />materials. <br />Carcinogen is a material known to cause cancer. A material is considered to be <br />a carcinogen if (1) it has been evaluated by the International Agency for <br />Research on Cancer (IARC) and found to be a carcinogen or potential <br />carcinogen; or (2) it is listed as a carcinogen or potential carcinogen in the latest <br />edition of the Annual Report of Carcinogens published by the national Toxicology <br />Program (NTP); or (3) it is regulated by Occupational Safety and Health <br />Administration (OSHA) as a carcinogen. <br />• Corrosive is a chemical that causes visible destruction of, or irreversible <br />lacerations in, living tissue. <br />• Highly Toxic Materials are chemicals or substances classified as "Poison A or <br />B" under Code of Federal Regulations (CFR) 49, or which have been assigned a <br />health hazard rating of 3 or 4 when rated in accordance with Uniform Fire Code <br />(UFC) Standard Number 79.3. <br />• Irritant is a substance other than a corrosive that causes a reversible <br />inflammatory effect on living tissue by chemical action at the site of contact. <br />• Target Organ Toxin is a substance that causes damage (target organ effects) to <br />particular organs or systems. <br />1.2.4 Listed Hazardous Materials <br />There are numerous listings of hazardous materials in the laws and regulations. Two <br />such listings include regulated substances and extremely hazardous substances. A list <br />of chemical names and common names for hazardous wastes and hazardous materials <br />is presented in the CCR, Title 22, Section 66261.126. California regulations can be <br />accessed at California Department of Toxic Substances Control's (DTSC's) web site at <br />http://www.dtsc.ca.gov/. <br />1.3 MANAGEMENT OF HAZARDOUS MATERIALS <br />1.3.1 Separation of Incompatible Chemicals <br />Chemical reactions occur when certain chemicals are mixed together. In uncontrolled <br />circumstances (i.e., spills), chemical that are not compatible with each other may react <br />with one another and produce any of the following hazards: <br />• Heat or pressure <br />• Fire or explosion <br />• Violent reaction <br />• Toxic dust, mists, fumes or gases, or <br />Boretech Hazardous Materials & Hazardous Waste Management Operations Plan Page 14 <br />