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Created2005-06
Description

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 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.

ContributorsYuma (Ariz.) (Author)
Created2012-06-06
Description

A policy document and guide for the growth and development of the city of Yuma in the next 10-20 years.

ContributorsYuma (Ariz.) (Author)
Created2002 to 2017
Description

A report on Yuma's financial position and activity, including a complete set of independently audited financial statements.

ContributorsYuma (Ariz.) (Author)
Created2008 to 2017
Description

A report of water quality tests performed in Yuma, to show compliance with state and Federal standards. Also discusses issues related to the supply of drinking water in Yuma.

ContributorsYuma (Ariz.) (Author)
Created2003 to 2017
Description

Provides a statement of the city of Yuma's fiscal priorities and policies, and details of its expenditures and revenues.

Created2002 to 2009
Description

Numerous agencies, companies, individuals, and organizations have collected the ambient air quality monitoring data presented in this report. The Arizona Department of Environmental Quality publishes data from these various sources to provide a picture, which is as complete as possible, of air quality conditions throughout Arizona.

Created2007 to 2015
Description

States are required to complete and submit to the U.S. Environmental Protection Agency an annual network monitoring plan. This plan informs the EPA of the monitoring activities ADEQ has implemented each year.

Created2013 to 2017
Description

The Arizona Early Childhood Development & Health Board, also known as First Things First, was established to help provide greater opportunities for all children birth through five in Arizona to grown up healthy and ready to succeed.

Created2006-10-10
Description

The Hydrology Division of the Arizona Department of Water Resources has been in the process over the last two years of updating the geology used in the Department’s Salt River Valley Regional Groundwater Flow Model. The geology update is the first phase of an overall plan to update the model’s

The Hydrology Division of the Arizona Department of Water Resources has been in the process over the last two years of updating the geology used in the Department’s Salt River Valley Regional Groundwater Flow Model. The geology update is the first phase of an overall plan to update the model’s geologic structure, numerical grid and extend the model’s steady-state and transient calibration periods. Releasing the provisional geologic report at this time allows us to provide the new data and analysis to water providers and other model users prior to the completion of the overall model update. Please be advised that the geologic data and interpretations that are included in this report and accompanying database are provisional at this time and subject to revision.

Created2009 to 2010
Description

As a result of high growth rates, physically and legally limited water supplies, drought, economic constraints, and relatively little comprehensive water resource planning and management, water supplies are stressed in some parts of Arizona. The Arizona Department of Water Resources has collected and synthesized currently available water-related information for the

As a result of high growth rates, physically and legally limited water supplies, drought, economic constraints, and relatively little comprehensive water resource planning and management, water supplies are stressed in some parts of Arizona. The Arizona Department of Water Resources has collected and synthesized currently available water-related information for the State of Arizona into a “water atlas,” organized by planning area.