George Heinen, Supervising Air Quality Engineer Joven Nazareno, Senior Air Quality Engineer Mike Buss, Senior Air Quality Engineer

A. Reasons for Rule Development and Implementation In terms of state and federal standards, the California Air Resources Board (ARB) and United States Environmental Protection Agency (EPA) classified the San Joaquin Valley Air Basin (SJVAB) as a non-attainment area for ozone. The District is classified as a serious non-attainment area for the federal 8-hour ozone National Ambient Air Quality Standards (NAAQS). It is anticipated that attainment of the eight-hour standard will require the control measures cited in the District’s Extreme Ozone Attainment Demonstration Plan (Ozone Plan), which includes a control measure for composting/biosolids operations. Since Revised Proposed New Rule 4565 is a control measure in the District’s Ozone Plan, it is subject to Federal Register, Clean Air Act (CAA), and California Health and Safety Code (CH&SC) requirements. Additionally, anti-backsliding provisions commit the District to develop all control measures listed in the Ozone Plan (Federal Register Volumes 69 and 70). This rulemaking project is intended to satisfy the attainment goal listed in the Ozone Plan. Additionally, the rulemaking project will seek to obtain as much VOC emissions reduction from the source category a