In a rule published July 2, 2002, EPA found the Arizona Department of Environmental Quality’s "Plan for Attainment of the 24-Hour PM10 Standard – Maricopa County PM10 Nonattainment Area" (May 1997), inadequate to achieve attainment of the 24-hour National Ambient Air Quality Standards for particulate matter 10 microns or fewer in aerodynamic diameter (PM10) at the Salt River monitoring site. The 1997 ADEQ SIP revision included attainment and Reasonable Further Progress demonstrations for the 24-hour NAAQS at the Salt River air quality monitoring site of the Maricopa County PM10 Serious Nonattainment Area, as well as at three other monitoring sites in the Phoenix area, - the Maryvale, Gilbert, and West Chandler sites. On August 4, 1997, EPA approved ADEQ’s attainment and RFP demonstrations for the Salt River monitoring area, which showed that the 24-hour PM10 NAAQS would reach attainment in the area by May 1998. Due to continuing violations of the 24-hour PM10 NAAQS at the Salt River air quality monitoring site since May 1998, EPA subsequently required Arizona to submit a revision to correct SIP inadequacies. This document consists of Arizona’s revisions to the state implementation plan for the Maricopa County PM10 Serious Nonattainment Area as described by EPA in its Federal Register notice of disapproval.

This study will prepare an updated Tribal Long Range Transportation Plan and a strategic plan for improvements over five-, 10-, and 20-year periods, incorporating both roadway and multimodal needs. Some key focus areas of the Plan are road maintenance and safety programs, as well as improvement plans for bicycle, pedestrian, and transit systems. It also Identifies updates to the Tribal Transportation Inventory and functional classification systems will assist in expanding the level and types of funding available for transportation projects.

This study is funded by the Arizona Department of Transportation Multimodal Planning Division Planning Assistance for Rural Areas (PARA) program. The purpose of this study was to evaluate pedestrian safety concerns and evaluate pedestrian infrastructure needs on the Gila River Indian Community and recommend a program of multimodal enhancements to address the identified needs.

Landscaping planted after January 1, 1987 within publicly owned rights-of-way and irrigated with groundwater may be planted only with plants listed on the ADWR Low Water Use/ Drought Tolerant Plant List for the Tucson AMA. The director may waive this requirement under special circumstances. This list can also be used as a resource for residents and businesses that are interested in conserving water. The list provides a wide array of plants to accomplish a variety of low wateruse landscape designs.

This document consists of the attainment demonstration, maintenance plan, and redesignation to attainment request for the Ajo Sulfur Dioxide (SO2) nonattainment area. The purpose of this document is to demonstrate how the area has met the National Ambient Air Quality Standards for SO2 and intends to maintain compliance with the NAAQS. Air quality standards are divided into two types: primary standards based on health effects and secondary standards based on environmental effects such as damage to property, plants, visibility, etc. Both standards are established by Environmental Protection Agency for criteria air pollutants such as sulfur dioxide.

The Office Air Quality, acting for the Director of the Department of Environmental Quality, is responsible for determining each regulated air pollution source’s capability and continuing ability to comply with air pollution source's emission rules; and any terms of conditional permits issued by the Arizona Air Pollution Control Hearing Board. This applies to all sources under the jurisdiction of the Department in matters of air pollution control. Performance tests, and/or visible emissions observations by agency personnel, are required to assure that sources are compliant with all applicable emission limitations at all major emission points before air pollution source operating permit are issued or renewed.

The Five-Year Consolidated Plan provides the framework for implementation of both City and County missions and is designed to guide HUD-funded housing, homeless and community development policies and programs over the five-year period beginning July 1, 2010 and ending June 30, 2014. The plan provides a comprehensive overview of federal, state and local programs in those program areas. It describes needs, resources, goals, strategies, and objectives.