ARCHIVED REPORTS LEC APPLICATION FOR CERTIFICATION

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5.1 AIR QUALITY Toxic Air Contaminant Program Authority: H&SC §39650-39675 Purpose:Established in 1983,the Toxic Air Contaminant Identification and Control Act created a two-step process to identify toxic air contaminants and control their emissions. The CARB identifies and prioritizes the pollutants to be considered for identification as toxic air contaminants. The CARB also assesses the potential for human exposure to a substance, while the Office of Environmental Health Hazard Assessment (OEHHA) evaluates the corresponding health effects. Both agencies collaborate in the preparation of a risk assessment report,which concludes whether a substance poses a significant health risk and should be identified as a toxic air contaminant. In 1993, the Legislature amended the program to identify the 187 federal hazardous air pollutants19 as toxic air contaminants. The CARB reviews the emission sources of an identified toxic air contaminant and,if necessary, develops air toxics control measures to reduce the emissions. Nuisance Regulation Authority: CA Health&Safety Code§41700 Purpose:Provides that"no person shall discharge from any source whatsoever such quantities of air contaminants or other material which causes injury, detriment,nuisance, or annoyance to any considerable number of persons or to the public or which endanger the comfort,repose,health,or safety of any such persons or the public, or which cause, or have a natural tendency to cause injury or damage to business or property." Administering Agency:SJVAPCD and CARB Air Toxic "Hot Spots"Act Authority: CA Health&Safety Code §44300-44384; 17 CCR§93300-93347 Purpose:Established in 1987,the Air Toxics "Hot Spots" Information and Assessment Act20 supplements the toxic air contaminant program,by requiring the development of a statewide inventory of air toxics emissions from stationary sources. The program requires affected facilities to prepare (1) an emissions inventory plan that identifies relevant air toxics and sources of air toxics emissions; (2) an emissions inventory report quantifying air toxics emissions;and (3) a health risk assessment,if necessary,to characterize the health risks to the exposed public. Facilities whose air toxics emissions are deemed to pose a significant health risk must issue notices to the exposed population. In 1992,the Legislature amended the program to further require facilities whose air toxics emissions are deemed to pose a significant health risk to implement risk management plans to reduce the associated health risks. This program is implemented at the local level with state oversight. Administering Agency:SJVAPCD,with CARB oversight. CEC and CARB Memorandum of Understanding Authority: CA Pub. Res. Code §25523(a);20 CCR§1752, 1752.5,2300-2309,and Div. 2, Chap. 5,Art. 1,Appendix B, Part (k) 19 The EPA increased the original list of 188 HAPs to 189,and then removed Caprolactam(61 FR30816,June 18, 1996)and methyl ethyl ketone on December 19,2005,reducing the list back to 187. 20 Commonly known as AB 2588. 5.1-48 SAC/371322/082410013(LEC_5.1_AIR_QUALITY.DOC)