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.

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.

The focus of this sub-regional study is the roadway system in an area of southern Navajo and Apache Counties bounded by the Town of Pinetop-Lakeside in the south, the Town of Snowflake in the north, Pulp Mill Road to the west, and the Concho area in Apache County to the east.

The Arizona Department of Transportation and the Maricopa Association of Governments are cooperating in the designation of a specific route for the CANAMEX Corridor in the Maricopa Region. Kimley-Horn and Associates, under contract to ADOT, provided technical assistance to ADOT and MAG in support of the high-level evaluation of route alternatives. The purpose of this study is to provide technical assistance, not to evaluate or select a preferred route alternative.

The Planning Assistance for Rural Areas program is sponsored by the Arizona Department of Transportation Multimodal Planning Division, and provides federal funds for the purpose of conducting transportation planning studies. Lake Havasu City first participated in another ADOT program for local governments, the Small Area Transportation Study program, in 1991. Under the SATS program the Lake Havasu City government successfully developed a citywide roadway plan, and then took part in the SATS program to update the plan in 1997 and 2005. The PARA program is flexible and allows for studies of neighborhoods or sub-areas within jurisdictions. The subarea program provision made it possible for the City to apply for and receive PARA funding for the North Havasu Study Area.

The Graham County, Safford, Thatcher, Pima Small Area Transportation Study was initiated by Graham County, in conjunction with the Arizona Department of Transportation, to develop a countywide, long-range multimodal transportation plan for this growing rural Arizona community. The project sponsors selected the PB Americas team to conduct this study under the direction of a Technical Advisory Committee, which included representatives from Graham County, City of Safford, Town of Thatcher, Town of Pima, Southeastern Arizona Governments Organization, and ADOT.

In 1992, Graham County conducted a transportation study for the Gila Valley Region. This study prepared a long-range transportation plan and a transportation improvement program. Many of the improvements have been completed. The purpose of this study is to update the 1992 transportation plan and to address the current issues within the area.

The Flagstaff Regional Plan 2030: Place Matters (Regional Plan) updated the Flagstaff Area Regional Land Use and Transportation Plan (2001). The vision and goals for the Regional Plan are directed toward creating a cohesive and sustainable land use and development pattern resulting in a contextsensitive and efficient transportation system that supports economic development, multimodal transportation, and improved safety and accessibility.