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.

The Water Infrastructure Finance Authority of Arizona is an independent entity authorized to finance the construction, rehabilitation and/or improvement of drinking water, waste water, waste water reclamation, and other water quality facilities/projects. As a “Bond Bank”, WIFA is authorized to issue water quality bonds on behalf of communities for basic water infrastructure. Generally, WIFA offers borrowers below market interest rates on loans for 100% of eligible project costs.

The Water Infrastructure Finance Authority of Arizona implements three types of technical assistance:
1. Project Technical Assistance – Planning and Design Assistance Grants assist an individual drinking water or wastewater system to conceive, plan, design, or develop an infrastructure project.
2. Policy Technical Assistance – Policy TA includes studies, surveys and other types of reports that provide benefit to a range of drinking water and wastewater systems statewide.
3. Operational Technical Assistance – The Arizona Department of Environmental Quality manages this program to provide assistance to individual drinking water and wastewater systems to improve facility operations.

The Drinking Water State Revolving Fund IUP describes WIFA’s plan to utilize various sources of funds to finance drinking water infrastructure and support related program activities during the State FY funding cycle from July 1 through June 30. This plan is a required element of the grant application documentation to obtain the grant award. Arizona herewith submits its IUP for the funds available to Arizona for the purposes of continuing the development, implementation and administration of the DWSRF program in Arizona.

The Intended Use Plan describes WIFA’s plan to utilize various sources of funds to finance clean water infrastructure and support related activities during the State FY funding cycle from July 1 through June 30. This plan is a required element of the grant application documentation to obtain the grant award for the purposes of continuing the development, implementation and administration of the Clean Water State Revolving Fund program in Arizona.

The Water Infrastructure Finance Authority of Arizona is an independent agency of the state of Arizona established to finance the construction, rehabilitation, and improvement of drinking water, wastewater, wastewater reclamation, and other water quality projects. WIFA operates as a “bond bank” and has the authority to issue bonds on behalf of communities for basic water infrastructure.

The Clean Air Act states that an area can be redesignated to attainment if specific conditions are met. This document demonstrates that all CAA requirements for attainment have been met, summarizes the progress of the area in attaining the PM10 standard, demonstrates that the Bullhead City area qualifies for EPA’s Clean Data Policy and Limited Maintenance Plan option, and includes a maintenance plan to assure continued attainment for ten years after the redesignation. This document includes a formal request to the U.S. Environmental Protection Agency to redesignate the Bullhead City, Arizona PM10 nonattainment area to attainment for the health-based 24-hour average and annual average PM10 National Ambient Air Quality Standard.

In addition, this document includes a formal request to revise the nonattainment area boundary, as currently defined in 40 CFR 81.303, to exclude three townships (108 square miles) in the east and south of the nonattainment area. The rationale for eliminating the three townships is that the land contains undisturbed desert terrain. The majority of the three townships is federal land managed by the Bureau of Land Management and state land managed by the Arizona State Land Department. Analyses included in this document show that ambient air quality measurements have remained below the NAAQS for PM10, and both the 24-hour average design value and annual average PM10 design value are below EPA’s LMP allowable limits. This document also demonstrates that the emission reduction control measures responsible for the air quality improvement are both permanent and enforceable.

This document consists of the attainment demonstration, maintenance plan, and redesignation to attainment request for the Douglas Sulfur Dioxide (SO2) Nonattainment Area. The purpose of this document is to demonstrate how the State of Arizona has met the National Ambient Air Quality Standards for SO2 and intends to maintain compliance with the NAAQS in the Douglas area. 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 EPA for criteria air pollutants such as sulfur dioxide.