Three methods to determine the bioavailability of polycyclic aromatic hydrocarbons were modified and developed for application to polychlorinated biphenyls (PCBs). Water/XAD desorption and selective supercritical fluid extraction methods were developed to determine the rapidly-released fraction of PCBs from contaminated soils and sediments. A method to determine PCBs in sediment pore water based on solid-phase microextraction was also developed that is capable of determining low pg/mL concentrations with water samples as small as 1.5 mL.

An Indonesian, Colombian, and Russian coal were tested in the Energy & Environmental Research Center's combustion test facility for their performance and an evaluation of mercury release and capture with selected additives in both electrostatic precipitator and baghouse configurations. Sorbents included the carbon-based materials NORIT DARCO Hg, Sorbent Technologies B-PAC and B-PAC LC, STI Rejects provided by Constellation Energy, and Envergex e-Sorb, along with ChemMod's high-temperature additive. Each coal was evaluated over several days and compared. Ash-fouling tests were conducted, and mercury levels were monitored using continuous mercury monitors (CMMs). The Ontario Hydro mercury sampling method was also utilized. The Indonesian coal had the lowest ash content, lowest sulfur content, and lowest energy content of the three coals tested. The Colombian coal had the highest mercury content and did contain a significant level of selenium which can interfere with the ability of a CMM to monitor mercury in the gas stream. All sorbents displayed very favorable results. In most cases, mercury removal greater than 86% could be obtained. The Indonesian coal displayed the best mercury removal with sorbent addition. A maximum removal of 97% was measured with this coal using Envergex's carbon-based sorbent at a rate of 4 lb/Macf across …

In March of 2005, U.S. Environmental Protection Agency (EPA) promulgated the Clean Air Mercury Rule (CAMR). Mercury from coal-fired power plants was to be reduced from the current 48 to 38 tons/yr by 2010 and then 15 tons/yr by 2018. It is expected that the first phase reduction of {approx}21% will be achieved by cobenefits that will occur as a result of installing additional selective catalytic reduction (SCR) and flue gas desulfurization (FGD) systems to meet the new Clean Air Interstate Rule (CAIR). Detroit Edison (DTE) is installing SCR at all four units at its Monroe Station and will eventually install wet-FGD systems. As such, the Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and DTE have contracted with the Energy & Environmental Research Center (EERC) to determine the extent of mercury oxidation that occurs at Monroe Station. The EERC originally did mercury speciation sampling at Monroe Station in 2004 and then went back in 2005 to determine if any changes occurred as a result of catalyst aging. During the second test, in addition to measuring the mercury speciation at the inlet and outlet of the SCR, the EERC also completed sampling at a location between the …

Summary describing the work completed at Louisiana State University Center for Energy Studies for 'Profitability of Offshore Petroleum Ventures and Operations: Empirical Evidence from Oil and Gas Lease Sales and Development on the Gulf of Mexico OCS, 1983-1999.' It includes background information on the project funding and sponsorship, goals, methodology, and findings.

This is the summary report of the third annual Optical Networking Testbed Workshop (ONT3), which brought together leading members of the international advanced research community to address major challenges in creating next generation communication services and technologies. Networking research and development (R&D) communities throughout the world continue to discover new methods and technologies that are enabling breakthroughs in advanced communications. These discoveries are keystones for building the foundation of the future economy, which requires the sophisticated management of extremely large qualities of digital information through high performance communications. This innovation is made possible by basic research and experiments within laboratories and on specialized testbeds. Initial network research and development initiatives are driven by diverse motives, including attempts to solve existing complex problems, the desire to create powerful new technologies that do not exist using traditional methods, and the need to create tools to address specific challenges, including those mandated by large scale science or government agency mission agendas. Many new discoveries related to communications technologies transition to wide-spread deployment through standards organizations and commercialization. These transition paths allow for new communications capabilities that drive many sectors of the digital economy. In the last few years, networking R&D has increasingly focused …

A review of the understanding of the deepwater physical oceanography of the Gulf of Mexico.

In July 2004, the Department of Energy (DOE) allocated funds in support of the development of A Data Exchange Format for Biological Pathway Databases (BioPAX). The primary objective of the BioPAX initiative is the development of a standard data exchange format for biological pathway data. This standard will significantly ease the analysis of biological pathways in the life sciences. Support from the DOE has enabled BioPAX to make significant progress towards its objective. We were able to build a very active community of pathway data and software tool providers. Work is continuing on the BioPAX standard with meetings, input and feedback provided for Level 3 of the standard and beyond.

The tuft coral Lophelia pertusa is a deep-water coral that is very slow to develop and fragile, which makes recovery from any type of damage a very slow process. Current fishing practices and oil drilling are destructive processes that effect these coral systems. The goal of this paper is to learn more about the Lophelia pertusa and determine how best to protect these deep-water systems.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Effect of constable’s constructive resignation prior to the county’s redistricting that abolished the constable’s precinct (RQ-0554-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether a justice of the peace may continue to administer polygraph examinations, for the criminal district attorney’s office, to criminal defendants subsequent to “arraignment” and setting of bail (RQ-0558-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether a county may own or operate a medical clinic in an adjacent county without the adjacent county’s consent (RQ-0560-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether a county may constitutionally contract under Local Government Code section 351.061 to provide a nongovernmental association with a constable office’s law-enforcement services provided the contract (1) allows the constable to retain control and supervision of the constable’s officers and (2) does not obligate the constable to assign officers to devote any portion of their working time to the nongovernmental association (RQ-0559-GA)

This edition of Alert by the EPA looks at excessive flow valves.

Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Commerce's U.S. Census Bureau (Bureau) seeks updated information on the addresses and maps of housing units from state, local, and tribal governments through the Local Update of Census Addresses (LUCA) program. This testimony discusses (1) the status of the LUCA program, and (2) the Bureau's response to prior issues raised by GAO as well as new challenges related to the program. The testimony is based on a GAO report issued on June 14, 2007. GAO reviewed LUCA program documents, met with and surveyed participants in the LUCA Dress Rehearsal, and interviewed Bureau officials and local officials."

Testimony issued by the Government Accountability Office with an abstract that begins "In May 2006, the President called for comprehensive immigration reform that included strengthening control of the country's borders by, among other things, adding 6,000 new agents to the U.S. Border Patrol by the end of December 2008. This unprecedented 48 percent increase over 2 years raises concerns about the ability of the Border Patrol's basic training program to train these new agents. This testimony is based on a recent report for the ranking member of this subcommittee on the content, quality, and cost of the Border Patrol's basic training program for new agents and addresses (1) the extent to which the Border Patrol's basic training program exhibits the attributes of an effective training program and the changes to the program since September 11, 2001; (2) the cost to train a new agent and how this compares to the costs of other similar law enforcement basic training programs; and (3) any plans the Border Patrol has developed or considered to improve the efficiency of its basic training program. To address these issues, GAO reviewed relevant documents; observed classroom training and exercises at the Border Patrol Academy in Artesia, New …

Correspondence issued by the Government Accountability Office with an abstract that begins "In connection with fulfilling our requirement to audit the financial statements of the U.S. government, we audited and reported on the Schedules of Federal Debt Managed by the Bureau of the Public Debt (BPD) for the fiscal years ended September 30, 2006 and 2005. As part of these audits, we performed a review of the general and application information security controls over key BPD financial systems. In our audit report on the Schedules of Federal Debt for the fiscal years ended September 30, 2006 and 2005, we concluded that BPD maintained, in all material respects, effective internal control relevant to the Schedule of Federal Debt related to financial reporting and compliance with applicable laws and regulations as of September 30, 2006, that provided reasonable assurance that misstatements, losses, or noncompliance material in relation to the Schedule of Federal Debt would be prevented or detected on a timely basis. We found matters involving information security controls that we do not consider to be reportable conditions but that nevertheless warrant BPD management's attention and action. BPD mitigated the potential effect of such issues with physical security measures, a program of …

Testimony issued by the Government Accountability Office with an abstract that begins "The purpose of this testimony is to assist the Committees in monitoring progress on the Capitol Visitor Center (CVC) project. This testimony will focus on (1) the Architect of the Capitol's (AOC) construction progress since the last CVC hearing on April 24, 2007; and (2) the project's expected cost at completion and funding status. GAO's remarks are based on our review of schedules and financial reports for the CVC project and related records maintained by AOC and its construction management contractor, Gilbane Building Company; our observations on the progress of work at the CVC construction site; and our discussions with the CVC team (AOC and its major CVC contractors), AOC's Chief Fire Marshal, and representatives from the U.S. Capitol Police. We also reviewed AOC's construction management contractor's periodic schedule assessments, potential change order log, and weekly reports on the progress of interior wall and floor stonework. In addition, we reviewed the contract modifications made to date."

Testimony issued by the Government Accountability Office with an abstract that begins "The U.S. Dept. of Agriculture's (USDA) Risk Management Agency (RMA) administers the federal crop insurance program in partnership with private insurers. In 2006, the program cost $3.5 billion, including millions in losses from fraud, waste, and abuse, according to USDA. The Agricultural Risk Protection Act of 2000 granted RMA authority to renegotiate the terms of RMA's standard reinsurance agreement with companies once over 5 years. This testimony is based on GAO's 2005 report, Crop Insurance: Actions Needed to Reduce Program's Vulnerability to Fraud, Waste, and Abuse, and May 2007 testimony, Crop Insurance: Continuing Efforts Are Needed to Improve Program Integrity and Ensure Program Costs Are Reasonable. GAO discusses (1) USDA's processes to address fraud, waste, and abuse; (2) extent the program's design makes it vulnerable to abuse; and (3) reasonableness of underwriting gains and other expenses. USDA agreed with most of GAO's 2005 recommendations to improve program integrity."

Testimony issued by the Government Accountability Office with an abstract that begins "In the early 1980s, volatile organic compounds (VOC) were discovered in some of the water systems serving housing areas on Marine Corps Base Camp Lejeune. Exposure to certain VOCs may cause adverse health effects, including cancer. Since 1991, the Department of Health and Human Services' Agency for Toxic Substances and Disease Registry (ATSDR) has been examining whether individuals who were exposed to the contaminated drinking water are likely to have adverse health effects. ATSDR's current study is examining whether individuals who were exposed in utero are more likely to have developed certain childhood cancers or birth defects. GAO was asked to testify on its May 11, 2007 report: Defense Health Care: Activities Related to Past Drinking Water Contamination at Marine Corps Base Camp Lejeune (GAO-07-276). This testimony summarizes findings from the report about (1) efforts to identify and address the past drinking water contamination, (2) the provision of funding and information from the Department of Defense (DOD) to ATSDR, and (3) an assessment of the design of the current ATSDR study. GAO reviewed documents, interviewed officials and former residents, and contracted with the National Academy of Sciences to …

Testimony issued by the Government Accountability Office with an abstract that begins "In recent years, a number of reports and newspaper articles have cited concerns regarding the level of protection and the available amounts of body armor to protect deployed service members. As part of GAO's efforts to monitor the Department of Defense's (DOD) and the services' action to protect ground forces, GAO reviewed the Army and Marine Corps's actions to address these concerns. On April 26, 2007, GAO issued a report regarding the Army and the Marine Corps's individual body armor systems. Today's testimony summarizes the report's findings regarding the extent to which the Army and Marine Corps (1) have met the theater requirements for body armor, (2) have the controls in place to assure that the manufacturing and fielding of body armor meet requirements, and (3) have shared information regarding their efforts on body armor ballistic requirements and testing. The report also included additional information concerning whether contractors or non-DOD civilians obtain body armor in the same way as U.S. forces and DOD civilians given the number of contractors and non-DOD civilians in Central Command's (CENTCOM) area of operation. GAO did not make recommendations in the report. DOD …

Testimony issued by the Government Accountability Office with an abstract that begins "In fiscal year 2006, the Department of Homeland Security (DHS) obligated $15.6 billion to support its broad and complex acquisition portfolio. Since it was tasked with integrating 22 separate federal agencies and organizations into one cabinet-level department, DHS has been working to create an integrated acquisition organization while addressing its ongoing mission requirements and responding to natural disasters and other emergencies. Due to the enormity of this challenge, GAO designated the establishment of the department and its transformation as high-risk in January 2003. This testimony discusses DHS's (1) challenges to creating an integrated acquisition function; (2) investment review process; and (3) reliance on contracting for critical needs. This testimony is based primarily on prior GAO reports and testimonies."

Testimony issued by the Government Accountability Office with an abstract that begins "The opportunity for employment is one of the most powerful magnets attracting illegal immigration to the United States. The Immigration Reform and Control Act of 1986 established an employment eligibility verification process, but immigration experts state that a more reliable verification system is needed. In 1996, the former U.S. Immigration and Naturalization Service, now within the Department of Homeland Security (DHS), and the Social Security Administration (SSA) began operating a voluntary pilot program, called the Employment Eligibility Verification (EEV) program, to provide participating employers with a means for electronically verifying employees' work eligibility. Congress is considering various immigration reform proposals, some of which would require all employers to electronically verify the work authorization status of their employees at the time of hire. In this testimony GAO provides observations on the EEV system's capacity, data reliability, ability to detect fraudulent documents and identity theft, and vulnerability to employer fraud as well as challenges to making the program mandatory for all employers. This testimony is based on our previous work regarding the employment eligibility verification process and updated information obtained from DHS and SSA."

Testimony issued by the Government Accountability Office with an abstract that begins "GAO provided to Congress, as requested, a statement for the record on Medicare payments for certain drugs provided to patients with end-stage renal disease (ESRD), a condition of permanent kidney failure. Through Medicare's ESRD benefit, patients receive a treatment known as dialysis, which removes excess fluids and toxins from the bloodstream. Patients also receive items and services related to their dialysis treatments, including drugs to treat conditions resulting from the loss of kidney function, such as anemia and low blood calcium. Detailed information on the prudence of bundling payments for all ESRD items and services and a recommendation to establish a bundled payment system as soon as possible are included in our report entitled End-Stage Renal Disease: Bundling Medicare's Payment for Drugs with Payment for All ESRD Services Would Promote Efficiency and Clinical Flexibility. This report, along with a testimony statement, was released at a December 6, 2006, hearing of the full Committee on Ways and Means. Today's statement highlights the information in that report and refers to information other witnesses presented at the hearing."

Correspondence issued by the Government Accountability Office with an abstract that begins "Anticipating the expiration of the Federal Aviation Administration's (FAA) current authorization at the end of fiscal year 2007, the administration submitted a proposal on February 14, 2007, for reauthorizing FAA and the excise taxes that fund most of its budget. This proposal would introduce cost-based charges for commercial users of air traffic control services, eliminate many current taxes, substantially raise fuel taxes for general aviation users to pay for their use of air traffic control services, and charge commercial and general aviation users a fuel tax to pay primarily for airport capital improvements. In January 2007, FAA released the results of a recently completed cost allocation study in support of the administration's proposal for transitioning to user fees. FAA and the administration used this study to determine the factors that drive the costs of providing air traffic control services, allocate these costs to various users of air traffic control services, and support the development of alternative methods to recover those costs. On March 21, 2007, we testified before the House Subcommittee on Aviation, providing our observations on selected changes to FAA's funding and budget structure contained in the …