Cleanup of leaking underground storage tank (LUST) sites has been a priority for the United States of America (USA) for more than 20 years due to the large number of sites, the potential harmful health affects associated with gasoline components and the fact that single owners may not have the ability to pay for cleanup of these sites. In June 2006, the US Environmental Protection Agency (EPA) reported that of the 459,637 confirmed releases from USTs that had occurred previously, 342,688 had been remediated, which leaves 116,949 sites yet to be completed across the USA. Petroleum cleanup programs tend to be managed at the State level; however, there are wide variations among State programs in terms of information access, risk perception and funding availability. While each of the Federal and State UST programs has evolved to meet specific requirements, there has not been a comprehensive comparison of the individual State programs.In this thesis, State petroleum cleanup programs across the USA are evaluated to determine similarities and differences in an effort to identify factors that affect petroleum cleanup progress. Many parameters enter the equation in determining petroleum cleanup effectiveness. Not only are the parameters of the State program operation important, but also the characteristics of each State, including drinking water source and perceived risk associated with petroleum contamination, factor into the determination.A representative group of States and State petroleum cleanup programs were evaluated and the characteristics of States were compared to cleanup progress to determine factors affecting efficiency. Based on trend analysis the cleanup levels for toluene, ethylbenzene and total xylenes correlate directly to the cost of LUST site cleanup. For States with less perceived risk from petroleum contamination, the cleanup goals are less stringent; therefore, fewer resources and less time are required to complete site cleanup. Consequently, petroleum cleanup in States with less-stringent goals is achieved more efficiently. The knowledge of these drivers of efficient petroleum cleanup can be used to expeditiously pursue completion of the thousands of sites remaining across the USA.

This thesis explored standardized assessment practices and analyzed accommodations commonly provided to address the unique needs of students with a sensory impairment. Current assessment practices in Indiana result in well below average scores on the Indiana Statewide Testing for Educational Progress - Plus (ISTEP+) and the Graduation Qualifying Examination (GQE) for students who have a sensory impairment. Using a mixed-method of qualitative and quantitative processes, the researcher postulated that if assessment processes were equitable for this population of students, their scores should approximate the normal distribution seen in the overall state totals for the total school population; albeit with a slightly lower trajectory. Reasoning being that the overall population of students with a sensory impairment spans from students with high ability to students with multiple disabilities. Through a literature review and meta-analysis on the topic of assessment, surveys and discussions with varied local experts, and interviews with state and national experts in the sensory areas represented, this study sought to establish a framework for accommodating this population of students on standardized assessments. Using descriptive analysis procedures, the various data sets brought forth 25 qualities or practices that the diverse experts agreed should be in place when assessing this population of students. The data reflected a high level of consensus among parents, teachers, state, and national experts regardless of region of state represented. The data also reflected consensus across sensory subgroups (blind, deaf, deafblind, hard of hearing/cochlear implant, and low vision). The research concluded with a modified confirmatory factor analysis of the 25 qualities with the state-dictated permissible accommodations published in the test guidance manual. This analysis revealed less than half of the perceived best practices were in place for the current state-mandated assessment system. Suggestions for improving accommodation options on future assessment procedures and the prospective for further research were offered. / Department of Special Education