The Arizona Legislature established ADEQ as the state’s environmental regulatory agency under the Environmental Quality Act of 1986. Its mission is to protect and enhance public health and the environment in Arizona. The department achieves this mission by administering our state’s environmental laws and delegated federal programs to prevent pollution of our air, water and land, and to clean up such pollution when it occurs. The department’s organizational structure is composed of four programmatic divisions that fulfill our environmental protection mission in the areas of air quality, water quality, waste programs, and tank programs.

This research study addresses the collection, preparation, and use of traffic data required for pavement design by the Arizona Department of Transportation, focusing on data required as inputs for the American Association of State Highway and Transportation Officials "Mechanistic-Empirical Pavement Design Guide" design procedures. ADOT’s current traffic data collection and preparation processes are not adequate to meet the needs of the MEPDG procedure, and improvements are needed. These improvements include enhanced volume, classification, and weight data collection for vehicles, processing data and performing quality assurance checks, and the preparation/analysis of the data for use in the MEPDG. Use of the MEPDG in Arizona will require (1) an annual flow of updated key traffic data and (2) the ability to collect on-site (MEPDG Level 1) data in a timely manner for key projects.

In the mid‐1990s, the Arizona Department of Transportation initiated the Maintenance Cost Effectiveness study (SPR 371) with the development of plans and an experiment design to evaluate the effectiveness of a variety of asphalt pavement maintenance treatments. During 1999 and 2001, ADOT oversaw the construction of hundreds of experimental sections throughout the state under the Phase I, Wearing Course Experiment (nine treatments and 82 sections at three sites), and the Phase II, Preventive Maintenance Experiment (24 treatments and 137 sections at four sites). Work continued in 2006 and 2007 under the Evaluation of Maintenance Strategies study (SPR 628) for ADOT with a yearlong program of pavement performance monitoring involving manual pavement distress surveys and automated skid, friction, and surface texture measurements at all the experimental sites. The project culminated with a detailed analysis of key pavement performance data to compare the performance of the individual treatments and determine their overall effectiveness. This report documents the independent findings of both the Phase I and II experiments.

The Upper Hassayampa groundwater basin covers approximately 787 square miles within Maricopa and Yavapai counties and is located about 60 miles northwest of Phoenix. The basin is characterized by mid-elevation mountains and had an estimated population of 10,479 in 2000. The largest population center is the Town of Wickenburg. Other communities include Congress and Groom Creek. Low-intensity livestock grazing is the predominant land use and most ranches have limited acreages of irrigated pasture to raise additional animal feed. There are no surface water diversions or impoundments besides small stock ponds within the basin. Groundwater is the only source for public water supply, domestic, irrigation and industrial purposes. Public water supply uses the most groundwater in the basin.

The Aravaipa Canyon groundwater basin covers approximately 517 square miles in southeastern Arizona within Graham and Pinal counties. Largely undeveloped, the remote basin has an estimated 135 residents and includes the community of Klondyke. Low-intensity livestock grazing is the predominant land use although there are some irrigated fields and orchards along Aravaipa Creek. Historic mining activity resulted in the creation of the Klondyke Tailings Water Quality Assurance Revolving Fund site in 1998. Groundwater is used for all domestic purposes within the basin as well as most irrigation and stock water supplies. Irrigation uses the most groundwater in the basin.

The purpose of this study was to conduct an evaluation of the Maryvale Weed and Seed Coalition. First, a process evaluation was conducted to examine the implementation of policies, goals, and planned activities by Maryvale Weed and Seed. Afterwards, an impact evaluation was conducted to assess the efficacy of Maryvale Weed and Seed in combating crime and disorder in the designated program area. The sections below outline both the characteristics of the affected site and the methodology used to conduct the process and impact evaluations.

The purpose of the present study was to conduct an evaluation of the Kino Weed and Seed Coalition, using both qualitative and quantitative data to conduct process and impact evaluations. The process evaluation relied on official documents detailing site activities and focus group interviews with key stakeholders. The impact evaluation relied on call for service data from the Tucson Police Department from 1999 through 2005, divided into two categories represented by a three-year “pre-test” and four-year “post-test”. The results of the process evaluation indicated that the Kino Weed and Seed Coalition was actively engaged in activities pursuant of their original site goals, and adapting them as the site developed. The impact evaluation indicated that the rates of calls for service in the Kino Weed and Seed area declined significantly during the four years of official programmatic activities when compared to the three years prior for calls related to violent, property, drugs, and total crimes. Quality of life, or disorder, issues did have a slight increase during the implementation years compared to the pre-test years, but the change was not significant.

The purpose of the present study was to conduct an evaluation of the Canyon Corridor Weed and Seed, using both qualitative and quantitative data to conduct process and impact evaluations. The process evaluation relied on official documents detailing site activities and interviews with key stakeholders. The impact evaluation relied on Uniform Crime Report (UCR) and call for service (CFS) data from the Phoenix Police Department (PPD) from 2002 through 2007, divided into two categories represented by a four-year “pre-test” and two-year “post-test”. The results of the process evaluation indicated that the Canyon Corridor Weed and Seed was actively engaged in activities pursuant of their original site goals, and adapting them as the site developed. The impact evaluation indicated that the crime rates in the Canyon Corridor Weed and Seed area experienced mixed declines and increases during the past two years of official programmatic activities when compared to the four years prior for crimes related to violent, property, drugs, and total crimes.