Arizona State and Local Government Documents Collection

This inventory includes emissions of coarse particulate matter <10 µm in diameter (PM10), fine particulate matter < 2.5 µm (PM2.5), nitrogen oxides, sulfur oxides, and ammonia. Emissions are calculated for both Maricopa County and the PM10 nonattaiment area. Annual totals as well as typical daily emissions are provided for all source categories.

These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through September 2013.

These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through January 2011.

The purpose of this handbook is to provide a practical guide offering a comprehensive overview of the
department’s policies and interpretations of Rule 310. The intent is that this guide will be useful and used. The handbook is organized to respond to topical questions and it is structured to provide answers to the most commonly encountered compliance challenges.

The purpose of the ambient air monitoring network is to sample air pollution in a variety of settings, assess the health and welfare effects, and assist in determining sources of air pollution. In general, six basic monitoring objectives and five measuring scales are used to determine the network design. Since it is physically and fiscally impossible to monitor the air in every location, representative samples must be obtained. These samples are determined by using the monitoring objectives and the spatial measurement scales. The network must be dynamic enough to maintain a current representative sample of the air quality. Air quality issues such as eight-hour ozone non-attainment boundaries and permits for new sources are diverse and controversial subjects for the citizens of Maricopa County. With its robust air monitoring network and mobile monitoring tools, the department strives to provide the most reliable and relevant air monitoring data to the public.

This document is designed to improve compliance with Maricopa County air pollution rules and regulations, with particular emphasis on Rule 310, which deals with fugitive dust sources, a major source of PM-10. It also describes control measures and work strategies that will assist in ensuring compliance with Rule 310. Also included in this report is a glossary of terms, a brief summary of applicable County air pollution regulations, and detailed information on the requirements for implementation of dust control practices.

In fiscal year 2011, Chino Valley Unified School District’s student achievement was similar to peer district and state averages, and its operational efficiencies were mixed with some costs higher and some costs lower than peer districts’ averages. The District’s per-pupil administrative costs were slightly higher than peer districts’ because the District employed more administrative positions per pupil. The District’s plant operations, food service, and transportation programs operated reasonably efficiently, with cost measures such as cost per square foot, cost per meal, and cost per mile that were similar to or lower than peer districts’ averages. However, the District needs to improve controls over access to critical information systems and strengthen controls over its fuel purchase cards.

In fiscal year 2011, Elfrida Elementary School District’s student AIMS scores for reading and writing were similar to the peer districts’ averages, and its math scores were lower. The District’s operational efficiencies compared favorably to peer district averages in most areas. All of the District’s nonclassroom areas operated with lower per pupil costs than peer districts’ averages and were reasonably efficient overall considering the District’s small size. However, the District’s transportation cost per mile was 59 percent higher than the peer districts’ average, partly because of slightly higher staffing levels. Providing transportation services cooperatively with neighboring districts could help bring costs closer to the peer district average. Further, the District needs to strengthen its accounting and computer controls.