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CLIMATE/METEOROLOGY The project has no potential to significantly affect the local microclimate or regional macroclimate. Mitigation is unnecessary. AIR QUALITY REGULATORY AGENCIES Federal - The Environmental Protection Agency (E.P.A.) , acting under t�ie�lean Air Act of 1970 (as amended in 1974 and 1977) , established regulations and programs for achievement and maintenance of the National Ambient Air Quality Standards. Primary standards represent the levels of air quality necessary, with an adequate margin of safety, to protect the public health. Secondary standards state the levels of air quality necessary to protect public welfare from any known or anticipated adverse effect of a pollutant. State - Section 4000 of the California Health and Safety Code states that local and regional authorities have the primary responsibility for control of air pollution from all sources other than emissions from motor vehicles, which are controlled by the California Air Resources Board (C.A.R.B. ). As mandated by California Health and Safety Code, Section 39602, and as required by Section 110 of the Clean Air Act, the C.A.R.B. is responsible for the preparation of the State Implementation Plan (S.I.P. ). The S.I.P. provides for implementation, maintenance and enforcement of primary and secondary air quality standards in each air quality control region within the state. The plan includes emission regulations and schedules for compliance with such regulations. Count - In San Joaquin County, three national ambient air quality standar s NAAQS) are being exceeded. The Clean Air Act Amendments of 1977 required areas that could not meet federal air quality standards by 1982 to prepare air quality plans that show how the standards would be met as expeditiously as possible before or by December 31, 1987. The San Joaquin County Board of Supervisors has been designated the lead planning agency for attaining two of these air pollution standards, namely those for ozone and carbon monoxide. Planning a reduction program for the third air pollutant, total suspended particulates, is a responsibility of the C.A.R.B. [8]. The major focus of the San Joaquin County 1982 Air Quality Management Plan (AQMP) is to show plans and specific tactics which reduce reactive organic gases (ROG) . ROG, or reactive hydrocarbons, are the principal precursors in photochemical reactions which create ozone. Nitrogen oxides (NO ) are also significant ozone precursors, however, control of NO emisitions in San Joaquin County beyond control of motor vehicle emissions would do little to reduce overall ozone levels. s 35