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Report to Congressional Requesters: 

March 2006: 

Environmental Liabilities: 

Long-Term Fiscal Planning Hampered by Control Weaknesses and 
Uncertainties in the Federal Government's Estimates: 

GAO-06-427: 

GAO Highlights: 

Highlights of GAO-06-427, a report to congressional requesters: 

Why GAO Did This Study: 

The nation’s military installations and nuclear weapons production 
facilities have accumulated many types of waste and contamination over 
the years. The federal government estimated its environmental liability 
to clean up this waste at $249 billion in fiscal year 2004, 
representing the federal government’s third largest reported liability. 
It represents a significant future outflow of funds at the same time as 
many other competing demands for federal dollars, but is currently not 
auditable. GAO was asked to address (1) the nature and extent of the 
government’s environmental liabilities, (2) the extent to which 
Energy’s and Defense’s processes and controls were designed to estimate 
and report environmental liabilities in accordance with federal 
accounting standards, and (3) the nature and types of uncertainties 
that are currently not estimable but could affect the cost of cleanup. 

What GAO Found: 

The federal government’s environmental liability reflects the estimated 
cost to clean up and dispose of environmental contamination in every 
state in the nation. The Departments of Energy and Defense report about 
99 percent of this liability. Energy’s reported liability of $182 
billion relates primarily to the cleanup and disposal of nuclear waste, 
contamination, and by-products that resulted from decades of nuclear 
weapons production. Defense’s reported liability of $64 billion is 
primarily for the cleanup of hazardous wastes at training ranges, 
military bases, and former defense sites; disposal of nuclear ships and 
submarines; and disposal of chemical weapons. 

While the design of Energy’s internal controls have enabled its 
auditors to determine that Energy’s financial statements were presented 
fairly and in accordance with federal accounting principles, 
significant weaknesses in Defense’s controls have hindered it from 
producing auditable environmental liability estimates. Specifically, 
Defense’s outdated and incomplete accounting guidance for developing 
and reporting its environmental liability estimates led to errors in 
financial reporting; its policies and procedures for determining, 
reporting, and documenting environmental liability estimates were not 
consistently followed; and none of the military services had adequate 
controls in place to help ensure that all identified contaminated sites 
were included in their environmental liability cost estimates. These 
weaknesses not only affected the reliability of Defense’s environmental 
liability estimate, but also that of the federal government as a whole. 

Even if Defense resolved its internal control weaknesses, uncertainties 
exist for both Energy and Defense—the effect of which cannot currently 
be estimated—that could increase the government’s environmental 
liabilities beyond the currently recorded amounts. These uncertainties 
involve the lack of feasible or proven remediation technologies, 
regulatory impediments and legal challenges, and uncertainties with the 
agencies’ abilities to meet their current cost and schedule targets. It 
is important to understand the nature and extent of these uncertainties 
because they have the potential to materially impact the ultimate cost 
and timing of cleanup activities. 

Craters Left as a Result of Underground Nuclear Testing at the Nevada 
Test Site: 

[See PDF for image] 

[End of figure] 

What GAO Recommends: 

GAO is making eight recommendations to help Defense improve its 
internal controls over its environmental liabilities by improving its 
financial management guidance and processes. We are also making a 
recommendation to help Energy improve its process for ensuring all 
litigation for potential disclosure is documented. Both Defense and 
Energy concurred with the recommendations, and described corrective 
actions being taken to address them. 

www.gao.gov/cgi-bin/getrpt?GAO-06-427. 

To view the full product, including the scope and methodology, click on 
the link above. For more information, contact Linda Calbom at (202) 512-
9508 or calboml@gao.gov. 

[End of section] 

Contents: 

Letter: 

Results in Brief: 

Background: 

The Federal Government's Environmental Liabilities Are Significant, 
Widespread, and Complex: 

Energy's Processes and Controls Allowed It to Produce Estimates in 
Accordance with Federal Accounting Standards; Defense's Did Not: 

Major Uncertainties Will Affect Future Cleanup Costs and Funding 
Demands: 

Conclusions: 

Recommendations For Executive Action: 

Agency Comments and Our Evaluation: 

Appendixes: 

Appendix I: Scope and Methodology: 

Appendix II: Comments from the Department of Defense: 

Appendix III: GAO Contact and Staff Acknowledgments: 

Related GAO Reports: 

Tables: 

Table 1: Primary Categories of Environmental Waste and Byproducts: 

Table 2: Accounting Requirements for Recording or Disclosing a 
Liability in the Federal Financial Statements: 

Figures: 

Figure 1: The Federal Government's Reported Fiscal Year 2004 
Environmental Liabilities by Agency: 

Figure 2: Energy's Cleanup Locations and Waste Repositories as of 
September 30, 2004: 

Figure 3: Number of Defense's Reported Cleanup Locations by State: 

Figure 4: Energy's Reported Fiscal Year 2004 Environmental Liabilities 
by Type: 

Figure 5: Waste Drum Being Opened and Contents Processed through a 
Remote-Handled Waste Facility: 

Figure 6: Defense's Reported Fiscal Year 2004 Environmental Liabilities 
by Type: 

Figure 7: Aerial View of the Waste Treatment Plant under Construction 
at Hanford: 

Figure 8: Craters Left As A Result Of Underground Nuclear Testing At 
The Nevada Test Site: 

Figure 9: View of an Exploratory Tunnel at Yucca Mountain: 

Figure 10: An Excavator Removes Buried Transuranic Waste at Energy's 
Idaho Cleanup Location: 

Letter March 31, 2006: 

The Honorable Todd R. Platts: 
Chairman: 
Subcommittee on Government Management, Finance, and Accountability: 
Committee on Government Reform: 
House of Representatives: 

The Honorable Darrell E. Issa: 
Chairman: 
Subcommittee on Energy and Resources: 
Committee on Government Reform: 
House of Representatives: 

The nation's military installations and nuclear weapons production 
facilities have accumulated many types of waste and contamination over 
the years. This material, which includes radioactive byproducts from 
nuclear weapons production, nonradioactive but hazardous chemicals such 
as polychlorinated biphenyls (PCB), and unexploded ordnance such as 
bombs and missiles at military ranges, poses a potential threat to the 
public's health and well-being.[Footnote 1] Various federal laws, 
agreements with states, and court decisions require the government to 
clean up these environmental hazards. Federal accounting standards 
require agencies responsible for cleaning up this waste and 
contamination to estimate the cleanup and disposal cost and report it 
in their financial statements as environmental liabilities.[Footnote 2] 
In the federal government's fiscal year 2004 consolidated financial 
statements, these environmental liabilities were estimated at $249 
billion--the third largest reported liability facing the federal 
government.[Footnote 3] This amount is currently unauditable and likely 
misstated given the problems we discuss later in this report with the 
Department of Defense's (Defense) controls over its estimation 
processes. Paying for this liability will require a significant future 
outflow of funds at the same time that the federal government will be 
facing many other competing demands for its limited dollars, such as 
escalating health care costs and growing Social Security obligations. 

Given that the inability to estimate total environmental liabilities 
has contributed to our disclaimer of opinion on the U.S. government's 
consolidated financial statements, and that the ultimate cost of 
cleanup and disposal activities will affect the long-term fiscal 
outlook of the federal government, you asked us to review the 
government's financial reporting of its environmental 
liabilities.[Footnote 4] We focused our work on the two federal 
agencies primarily responsible for those efforts--the Department of 
Energy (Energy), which oversees the nation's nuclear weapons 
facilities, and Defense, which oversees the nation's military 
installations and weapons systems. Together, these two agencies 
comprised 99 percent of the cleanup and disposal cost estimates 
reported in the federal government's fiscal year 2004 consolidated 
financial statements. In response to your request, our report 
addresses: 

* the nature and extent of the environmental cleanup and disposal cost 
liabilities as reported in the federal government's financial 
statements, 

* the extent to which Energy's and Defense's processes and controls are 
adequately designed to estimate and report environmental liabilities in 
accordance with related federal accounting standards, and: 

* the nature and types of uncertainties that are currently not 
estimable but could affect the ultimate cost of Energy's and Defense's 
environmental cleanup efforts. 

In performing our work, we focused our review on Energy's and Defense's 
Performance and Accountability Reports for fiscal year 2004, the most 
recent completed fiscal year at the time we began our review, to 
determine what the agencies recorded and reported in their financial 
statements with respect to their environmental liabilities.[Footnote 5] 
We interviewed Energy and Defense officials, visited various sites, and 
reviewed policies and other documentation to obtain a better 
understanding of each agency's cleanup responsibilities and the cleanup 
and disposal issues being addressed by each agency, their internal 
controls and procedures for developing their environmental liability 
estimates, and the uncertainties that could affect the ultimate cost of 
cleanup and disposal. In reviewing both agencies' internal controls, we 
did not review or test detailed contractor estimates but instead 
focused on each agency's procedures for compiling and developing its 
environmental liability amounts. 

Because an independent public accounting firm audited Energy's fiscal 
year 2004 financial statements and found them to be fairly stated, we 
reviewed those statements, traced and verified environmental 
liabilities amounts to supporting schedules, and reviewed audit 
workpapers where available. We otherwise relied on the work performed 
by the independent auditors and did not perform additional audit 
procedures to verify the completeness or accuracy of the amounts 
reported. Because Defense has acknowledged serious data reliability 
problems related to its financial systems and information, including 
those involved in the reporting of its environmental liabilities, 
auditors did not attempt to perform audit procedures and disclaimed an 
opinion on Defense's fiscal year 2004 financial statements. Therefore, 
it was not our objective to--and we did not--audit the completeness or 
accuracy of Defense's reported environmental liabilities amounts. 
Although we have previously reported on the potential for Defense to 
incur costs in voluntary restoration initiatives in conjunction with 
returning overseas Defense facilities to host nations, these activities 
are not reported as environmental liabilities in its financial 
statements, and we did not review their international operations or 
processes.[Footnote 6] Since Defense's reported amounts are not 
reliable, we are providing them in this report for informational 
purposes only. 

We also reviewed Energy's and Defense's fiscal year 2005 Performance 
and Accountability Reports primarily to determine whether any 
significant new issues had arisen subsequent to the issuance of the 
fiscal year 2004 financial statements. We performed our work from 
October 2004 through January 2006 in accordance with generally accepted 
government auditing standards. Appendix I provides further details on 
our scope and methodology. 

Results in Brief: 

The environmental liability amount reported in the federal government's 
consolidated financial statements reflects an estimate of the cost to 
clean up and dispose of environmental contamination in every state in 
the nation. Of the $249 billion reported for fiscal year 2004, Energy's 
recorded liability was $182 billion, the largest of any agency, and was 
related primarily to the cleanup of nuclear waste and contamination at 
about 50 Energy locations around the country. Over 40 percent of 
Energy's total liability relates to cleanup at three locations in 
Washington, South Carolina, and Idaho where most of the nation's 
nuclear weapons production activities occurred during World War II and 
the subsequent Cold War. The estimated cleanup costs relate to the 
treatment and disposal of millions of gallons of radioactive byproducts 
from making plutonium and other nuclear materials, decontamination and 
demolition of facilities used for decades in nuclear materials 
production, and the cleanup of contaminated soil and groundwater at 
these locations. Energy's recorded environmental liabilities also 
include estimates for the future cleanup of its current, or "active," 
facilities; long-term stewardship and monitoring at sites after they 
are cleaned up; and disposal of high-level waste, used ("spent") 
nuclear fuel, and excess special nuclear material. The radioactivity of 
most of Energy's waste makes its cleanup effort technically difficult, 
costly, and subject to significant legal challenges. 

Defense's unaudited cleanup cost estimate, reported at $64 billion in 
fiscal year 2004, accounted for the bulk of the government's remaining 
reported environmental liability balance. Its cleanup responsibilities 
include treatment and disposal of many types of hazardous wastes 
associated with military operations; disposal of weapons systems 
including nuclear ships and submarines; storage and disposal of highly 
toxic chemical weapons such as nerve agents and sulfur mustard blister 
agents; and environmental cleanup at military installations affected by 
base realignment and closures. Defense has identified about 600 
military locations and over 1,700 formerly used defense locations 
requiring remediation in all 50 states. 

Energy's processes and internal controls over the financial reporting 
of its environmental liabilities have enabled it to produce an estimate 
of its environmental liabilities in accordance with federal accounting 
standards for several years; however, Defense's have not. Key 
components of Energy's environmental liability estimation process 
include the issuance of internal control guidance to its field 
locations for the development and annual update of environmental 
liability estimates, independent reviews of selected projects, and 
establishment of a requirement that project work scope changes and cost 
increases be approved by a control board. Another key part of Energy's 
financial reporting process is its "contingency estimate," which is 
used to take into account the inherent uncertainties in estimating the 
cost of environmental cleanup activities. Adding this component to the 
liability helped Energy achieve a clean financial statement audit 
opinion in fiscal year 1999 and in subsequent years. 

In contrast, numerous weaknesses in the design of Defense's processes 
and internal controls for estimating and reporting environmental 
liabilities have precluded it from producing an auditable estimate of 
its environmental liabilities. While some progress has been made over 
the years, we found that (1) Defense's outdated and incomplete 
accounting guidance for developing and reporting its environmental 
liabilities estimates led to errors in financial reporting; (2) its 
policies and procedures for determining, reporting, and documenting 
environmental liability estimates were not consistently followed; and 
(3) none of the military services had adequate controls in place to 
help ensure that all identified contaminated sites were included in 
their reported environmental liability estimates. These weaknesses not 
only impacted the reliability of Defense's environmental liability 
estimate, but also that of the federal government as a whole. 

Even if Defense resolves all of its control deficiencies and reports 
cost estimates that meet all federal accounting standards, 
nonquantifiable uncertainties currently exist for both Energy and 
Defense that could increase the eventual cost of the cleanup beyond the 
estimated amounts recorded in the federal government's consolidated 
financial statements. While not quantifiable, these, like the 
quantified environmental liabilities, add to the fiscal exposures of 
the federal government and will affect the long-term fiscal outlook. 
For example, various regulatory requirements and legal challenges have 
caused multiple delays in the licensing and design of the nation's 
planned high-level waste repository at Yucca Mountain, Nevada, and many 
of the environmental liability cost estimates are predicated upon Yucca 
Mountain opening and accepting this waste by certain milestone dates. 
Further delays could cause construction, interim storage, and other 
costs to increase, but Energy has not yet committed to a new target 
date for opening the repository. These uncertainties do not affect the 
auditability of the liability because under current federal accounting 
standards a potential liability that cannot be estimated but is 
considered at least reasonably possible to occur is not required to be 
recorded, only disclosed. Both Energy and Defense currently disclose 
these types of uncertainties in the notes to their financial 
statements, although improvements in their disclosures are warranted at 
both agencies. 

Given these uncertainties and the extensive internal control weaknesses 
at Defense, the ultimate cost and funding requirements of cleanup and 
disposal of the federal government's environmental contamination cannot 
be fully determined. Improving Defense's financial management processes 
and controls are critical to ensuring that environmental liability 
estimates are as reliable as possible under current circumstances. We 
are making eight recommendations to Defense that, if properly 
implemented, will improve internal controls at Defense to help ensure 
that its environmental liabilities estimates are adequately supported 
and properly reported. We are also making a recommendation to Energy to 
help improve disclosure in the notes to the financial statements of 
uncertainties that could have a significant impact on ultimate cleanup 
costs. We provided Energy and Defense with a draft of applicable 
sections of this report for their review and comment. We received 
verbal comments from Energy, and written comments from Defense that are 
reprinted in appendix II. Each concurred with the respective 
recommendations made to them and described the corrective actions they 
were taking to address them. 

Background: 

Federal agencies' responsibilities for environmental cleanup are set 
forth in a number of different laws, regulations, and agreements. For 
example, many of Energy's and Defense's cleanup activities are governed 
by the Resource, Conservation, and Recovery Act of 1976, as 
amended,[Footnote 7] and the Comprehensive Environmental Response, 
Compensation, and Liability Act of 1980, as amended.[Footnote 8] 
Additionally, the Nuclear Waste Policy Act of 1982, as 
amended,[Footnote 9] established a program for the development of a 
geologic repository (a permanent deep disposal system) for disposing of 
high-level radioactive waste and spent nuclear fuel; the Waste 
Isolation Pilot Plant Land Withdrawal Act[Footnote 10] provided for the 
establishment of a repository for transuranic wastes. Furthermore, 10 
U.S.C. §§ 2701-2709 established the Defense Environmental Restoration 
Program to identify, investigate, and clean up properties contaminated 
by Defense's activities. Table 1 describes the primary categories of 
waste and materials that the government is faced with cleaning up. 

Table 1: Primary Categories of Environmental Waste and Byproducts: 

Type: Spent nuclear fuel; 
Description: Fuel elements and irradiated targets that have been 
removed from nuclear reactors. These spent fuels are highly radioactive 
and must be stored in special facilities that shield and cool the 
materials. 

Type: High-level waste; 
Description: Highly radioactive liquid left over when spent nuclear 
fuel is reprocessed to recover reusable uranium or plutonium. Most of 
Energy's high-level waste came from the production of plutonium. This 
designation is also applied to solids made when liquid high-level waste 
is treated. This waste typically contains highly radioactive, short-
lived fission products as well as long-lived isotopes, hazardous 
chemicals, and toxic heavy metals. High-level waste must be isolated 
from the environment for thousands of years. 

Type: Transuranic waste; 
Description: Waste contaminated with transuranic elements at a 
concentration higher than 100 nanocuries per gram. This includes soil 
and chemicals as well as contaminated tools, equipment, and clothing. 
Transuranic waste is generated during nuclear weapons production and 
other activities involving long-lived transuranic elements, such as 
plutonium. Some of these isotopes have half-lives of tens of thousands 
of years, thus requiring long-term isolation. 

Type: Low-level waste; 
Description: Any radioactive waste that does not fall into one of the 
above categories regardless of content, activity level, or longevity. 
Most low-level waste contains small amounts of radioactivity in large 
volumes of material. 

Type: Hazardous waste; 
Description: Hazardous wastes are chemical wastes containing substances 
defined as hazardous by law. These are capable of causing illness, 
death, or some other harm to humans and other life forms when 
mismanaged or released into the environment. 

Type: Mixed waste; 
Description: Waste that contains both radioactive and chemically 
hazardous materials. Some high-level, transuranic, and low-level wastes 
are also hazardous and thus are also considered mixed waste. 

Source: GAO. 

[End of table] 

In our report on major challenges facing the nation in the 21st 
century, we pointed out that progress in cleaning up sites frequently 
does not meet expected time frames and the costs dramatically exceed 
available funding levels.[Footnote 11] Furthermore, the current 
approaches to cleaning up the various sites are not consistent and, in 
some cases, not especially efficient or effective. Such issues are some 
of the reasons we have designated aspects of Energy's and Defense's 
operations as high-risk areas for the federal government.[Footnote 12] 
We have also previously reported on shortcomings with the federal 
budgeting process for environmental liabilities.[Footnote 13] 
Specifically, we reported that because the federal budget is primarily 
calculated on a cash basis, the full costs of a program that will have 
cleanup costs are not recognized in the budget, nor are estimates of 
these future costs provided elsewhere in budget documents. 
Consequently, the budget itself does not provide policymakers the 
information to compare the full costs of certain programs and thus, the 
long-term fiscal exposures. We have previously suggested to the 
Congress that budget process mechanisms be developed to prompt more 
deliberations about such fiscal exposures while recognizing the 
uncertainty inherent in estimating some long-term costs.[Footnote 14] 

Meeting these cleanup responsibilities carries a financial cost, and 
federal accounting standards require the costs associated with the 
federal government's environmental cleanup responsibilities to be 
reported in the respective agencies' financial statements as well as 
the federal government's consolidated financial statements. The Federal 
Accounting Standards Advisory Board's Statement of Federal Financial 
Accounting Standards (SFFAS) No. 5, Accounting for Liabilities of the 
Federal Government, requires the recognition of a liability when there 
has been a past government-related event and there is both a probable 
and a reasonably estimable future outflow or sacrifice of 
resources.[Footnote 15] If a future outflow of resources is probable 
but the amount is not reasonably estimable, then SFFAS No. 5 requires 
the disclosure of a liability in the notes to the financial statements 
with a statement that the amount of the liability cannot be estimated. 
If a future outflow of resources is not considered probable but there 
is at least a reasonable possibility that a loss or future expenditure 
may be incurred, SFFAS No. 5 requires disclosure of the possible 
liability in the notes to the financial statements. Table 2 explains in 
more detail the accounting criteria for determining when to record a 
liability in the federal financial statements, disclose it in the notes 
to the financial statements, or not disclose it at all.[Footnote 16] 

Table 2: Accounting Requirements for Recording or Disclosing a 
Liability in the Federal Financial Statements: 

Likelihood of future outflow or other sacrifice of resources: Probable: 
Future confirming event(s) are more likely to occur than not[A]; 
Degree to which loss can be measured: Loss amount can be reasonably 
measured: Record a liability (reported on balance sheet and statement 
of net cost); 
Degree to which loss can be measured: Loss range can be reasonably 
measured: Record a liability for best estimate or minimum amount in 
loss range if there is no best estimate, and disclose nature and range 
of estimated liability; 
Degree to which loss can be measured: Loss amount or range cannot be 
reasonably measured: Disclose nature of liability and include a 
statement that an estimate cannot be made. 

Likelihood of future outflow or other sacrifice of resources: 
Reasonably possible: Possibility of future confirming event(s) 
occurring is more than remote and less than likely; 
Degree to which loss can be measured: Loss amount can be reasonably 
measured: Disclose nature of possible liability and estimated loss 
amount; 
Degree to which loss can be measured: Loss range can be reasonably 
measured: Disclose nature of possible liability and estimated loss 
range; 
Degree to which loss can be measured: Loss amount or range cannot be 
reasonably measured: Disclose nature of possible liability and include 
a statement that an estimate cannot be made. 

Likelihood of future outflow or other sacrifice of resources: Remote: 
Possibility of future event(s) occurring is slight; 
Degree to which loss can be measured: Loss amount can be reasonably 
measured: No disclosure; 
Degree to which loss can be measured: Loss range can be reasonably 
measured: No disclosure; 
Degree to which loss can be measured: Loss amount or range cannot be 
reasonably measured: No disclosure. 

Source: Statement of Federal Financial Accounting Standards, No. 5. 

[A] For liabilities related to litigation, probable is defined as a 
future confirming event(s) that is likely to occur. 

[End of table] 

Federal agencies are also obligated to establish and maintain effective 
internal control. We issue the standards for internal control in the 
federal government, which provide the overall framework for 
establishing and maintaining internal control and for identifying and 
addressing major performance and management challenges and areas at 
greatest risk of fraud, waste, abuse, and mismanagement.[Footnote 17] 
According to the standards, internal control is an integral component 
of an organization's management that provides reasonable assurance that 
agency objectives--such as the reliability of financial reporting and 
the effectiveness and efficiency of operations--are being met. These 
standards define the minimum level of quality acceptable for internal 
control in government and provide the basis against which internal 
control is to be evaluated. 

The Federal Government's Environmental Liabilities Are Significant, 
Widespread, and Complex: 

For fiscal year 2004, the estimated cost for environmental cleanup 
reported in the federal government's consolidated financial statements 
was $249.2 billion--the third largest reported liability. The 
government's responsibility for cleanup extends to locations in every 
state of the nation, with Energy and Defense showing marked differences 
in the nature of these locations and the types of cleanup 
needed.[Footnote 18] Energy's liability is primarily for the cleanup of 
waste resulting from the nation's nuclear weapons complex, and the 
number of these locations is considerably fewer than the locations for 
which Defense is responsible. Although concentrated at fewer locations, 
the radioactivity associated with much of Energy's cleanup work make 
the efforts technically difficult and costly. Defense's liability is 
for contamination from current and past military activities at over 
2,300 locations across the country, creating difficult management 
challenges. While cleanup at many of these locations may not carry the 
same technical challenges as those associated with Energy's nuclear 
cleanup responsibilities, some Defense locations have chemical weapons 
or hazardous waste that carry considerable challenges of their own. 

The Federal Government's Cleanup Responsibilities Are Vast and Span the 
Nation: 

The federal government's reported environmental liability is an 
estimated amount, stated in current dollars. As illustrated in figure 
1, Energy and Defense together made up $246 billion (99 percent) of the 
federal government's total reported environmental liability at the end 
of fiscal year 2004. The remaining $3 billion (1 percent) of the 
reported 2004 liability represented the estimated environmental cleanup 
costs of 12 other federal agencies, with the three largest being the 
Department of Transportation ($1.1 billion), National Aeronautics and 
Space Administration ($987 million), and the Department of Veterans 
Affairs ($339 million). 

Figure 1: The Federal Government's Reported Fiscal Year 2004 
Environmental Liabilities by Agency: 

[See PDF for image] 

[End of figure] 

The size of the overall estimate makes the environmental liability 
amount the third largest reported liability that the federal government 
faces, behind federal debt securities held by the public with their 
related accrued interest and federal employee and veteran benefits 
payable.[Footnote 19] As such, management of the environmental 
liability represents one of the federal government's major challenges 
from both financial and environmental perspectives. 

The majority of Energy's environmental liability, reported at $182 
billion as of September 30, 2004, comes from nuclear weapons production 
during World War II and the Cold War. During this period, the United 
States built a massive industrial complex to research, produce, and 
test nuclear weapons. At all locations where these activities took 
place, environmental contamination of buildings, soil, surface water, 
and groundwater occurred. This environmental legacy of nuclear weapons 
production also produced large volumes of radioactive and chemical 
waste requiring treatment, stabilization, and disposal. Collectively, 
the waste remaining from the development and production of nuclear 
weapons is referred to as legacy waste. Energy is also responsible for 
stabilizing and disposing of waste from ongoing operations at active 
facilities, such as at its national laboratories, which carry out 
scientific research for national and defense purposes.[Footnote 20] 
Additionally, Energy is tasked with disposing of radioactive special 
nuclear materials and depleted uranium surplus from our national 
defense needs, including the nation's surplus plutonium and highly 
enriched uranium used in nuclear weapons. Energy has about 50 locations 
nationwide for which it is responsible for cleaning up, stabilizing, 
and disposing of hazardous and radioactive wastes and materials 
resulting from past and current operations.[Footnote 21] Figure 2 shows 
major Energy locations where legacy and active facility wastes require 
cleanup either currently or in the future. Although Energy's legacy and 
active facility waste cleanup and disposal locations are dispersed 
throughout the United States, over 40 percent of Energy's total 
environmental liabilities estimate pertains to cleanup and related long-
term monitoring at just three locations: Hanford near Richland, 
Washington; Savannah River near Aiken, South Carolina; and Idaho 
National Laboratory near Idaho Falls, Idaho. 

Figure 2: Energy's Cleanup Locations and Waste Repositories as of 
September 30, 2004: 

[See PDF for image] 

Note: Map locations not drawn to scale. 

[End of figure] 

In contrast to Energy, Defense reports a need to clean up over 2,300 
locations around the country. This includes about 600 current and base 
realignment and closure (BRAC) military locations and over 1,700 
formerly used defense locations in every state in the country.[Footnote 
22] Defense is required to clean up contamination resulting from past 
and current waste disposal practices, leaks, spills, and other 
activities that have created a public health or environmental risk. 
Defense is also responsible for costs of (1) closure and monitoring 
associated with the transportation, storage, and disposal of hazardous 
wastes, (2) disposal of weapons systems such as nuclear ships and 
submarines and their associated spent nuclear fuel, (3) storage and 
disposal of highly toxic chemical weapons, and (4) environmental 
cleanup related to base realignments and closures. As figure 3 shows, 
every state has at least one such Defense cleanup location, and 14 
states have more than 100. 

Figure 3: Number of Defense's Reported Cleanup Locations by State: 

[See PDF for image] 

Note: Map does not reflect the locations of chemical weapons and 
nuclear ships and submarines. The number of states reflected in the 
legend includes the District of Columbia. 

[End of figure] 

Cleanup Efforts Pose Diverse Challenges: 

As shown in figure 4, about $130 billion (72 percent) of Energy's 
reported fiscal year 2004 environmental liability relates primarily to 
the cleanup and long-term stewardship of legacy waste at sites where 
weapons research, production, and testing took place. By comparison, 
Energy's 2004 liability for the estimated cost of cleaning up its 
active facilities when current operations cease was only $30 billion, 
17 percent of the total. Energy's plan is to dispose of its high-level 
waste and spent nuclear fuel in a deep geologic repository that will 
also be used for the disposal of such waste from other federal agencies 
and commercial nuclear generators. Energy's allocated share of the 
disposal cost at the repository is $15 billion, 8 percent of its 
reported environmental liability.[Footnote 23] The remaining $6 
billion, 3 percent of the liability, primarily relates to the disposal 
of special nuclear material in excess of national defense needs. 

Figure 4: Energy's Reported Fiscal Year 2004 Environmental Liabilities 
by Type: 

[See PDF for image] 

[End of figure] 

Energy's cleanup and disposal efforts involve difficult and costly 
technical challenges. The physical characteristics and radioactivity of 
its wastes affect the handling requirements, treatment, and disposal 
methods, and thus the cost of cleanup. For example, Energy's cleanup 
efforts involve large amounts of radioactive waste from nuclear weapons 
production. While the level of radioactivity varies, some waste--such 
as waste contaminated with plutonium--will stay radioactive for 
thousands of years. As a result, some wastes must be remotely handled 
with special robotic machines sealed in heavily shielded rooms because 
they are too dangerous for workers to physically handle. This further 
adds to the cost of cleanup. 

Figure 5: Waste Drum Being Opened and Contents Processed through a 
Remote-Handled Waste Facility: 

[See PDF for image] 

[End of figure] 

Furthermore, Energy is developing and testing technologies and methods 
of treatment for certain types of waste because there are currently no 
proven methods for cleaning them up. As discussed later in this report, 
some of these treatment methods have proved unsuccessful, requiring 
Energy to pursue new methods. This lack of treatment technology means 
that the cost to treat these wastes will likely increase. Also, the 
hazardous and long-lived nature of much of Energy's waste has resulted 
in contention between interested parties as to the best way and extent 
to which cleanup should occur. As discussed later in this report, this 
has at times resulted in legal challenges, which can also increase the 
extent and cost of cleanup. 

The Defense portion of the federal government's environmental 
liabilities also poses significant challenges. Defense's environmental 
liabilities, shown in figure 6, consist primarily of (1) hazardous 
waste disposal and cleanup on training ranges, including removal of 
unexploded ordnance, (2) disposal of nuclear ships and submarines, and 
(3) disposal of chemical weapons. The "other" category includes cleanup 
of hazardous wastes (such as petroleum products and PCBs) at military 
bases and formerly used defense sites. 

Figure 6: Defense's Reported Fiscal Year 2004 Environmental Liabilities 
by Type: 

[See PDF for image] 

[End of figure] 

Although the technical processes for dealing with Defense's cleanup may 
be more clearly defined and understood at this point than the processes 
for dealing with some of Energy's cleanup of high-level radioactive 
wastes, many of Defense's cleanup efforts are nonetheless significant 
and challenging. Not only are Defense's cleanup efforts spread across 
the nation, but estimating the future costs of disposing of nuclear 
ships and submarines is complicated by the uncertainty surrounding the 
final disposal location of spent nuclear fuel, as discussed more fully 
later in this report. Further, Defense has responsibility for 
safeguarding the environment and human life from the extreme risks 
inherent in storing the nation's stockpile of deadly chemical weapons-
-including highly toxic nerve agents and sulfur mustard blister agents-
-while working to develop alternative methods for their disposal. 

Energy's Processes and Controls Allowed It to Produce Estimates in 
Accordance with Federal Accounting Standards; Defense's Did Not: 

Energy's processes and internal controls for developing its overall 
environmental liability estimate have evolved and improved over time to 
the point where, for fiscal years 1999 through 2004, its auditors 
determined that the financial statements that reported the estimated 
environmental liabilities were presented fairly and in accordance with 
federal accounting principles.[Footnote 24] Key components of Energy's 
environmental liability estimation process include the issuance of 
internal control guidance to its field locations for the development 
and annual update of environmental liability estimates; independent 
reviews of selected projects; and establishment of a requirement that 
project work scope changes and cost increases be approved by a control 
board. Another key part of Energy's financial reporting process is its 
"contingency estimate," which is used to take into account the inherent 
uncertainties in estimating the cost of environmental cleanup 
activities. Adding this component to the liability estimate helped 
Energy achieve a clean financial statement audit opinion in fiscal year 
1999 and subsequent years. While Energy's auditors identified some 
issues related to the environmental liability reporting process that 
require corrective action, none of these were significant enough to 
materially impact the reasonableness of the overall liability estimate. 

Defense has made some improvements to its controls in recent years, 
such as issuing management guidance for reporting environmental cleanup 
costs that are not funded under the Defense Environmental Restoration 
Program. However, there remain significant weaknesses in Defense's 
processes and internal controls that have hindered it from producing 
auditable estimates of its environmental liabilities. Specifically, 
Defense's outdated and incomplete accounting guidance for developing 
and reporting its environmental liabilities estimates led to errors in 
financial reporting; its policies and procedures for determining, 
reporting, and documenting environmental liability estimates were not 
consistently followed; and none of the military services had adequate 
controls in place to help ensure that all identified contaminated sites 
were included in their environmental liability cost estimates. These 
weaknesses not only impacted the reliability of Defense's environmental 
liability estimate, but also that of the federal government as a whole. 

Auditors Found Energy's Processes and Controls Sufficient to Produce 
Reliable Environmental Liability Estimates in Accordance with Federal 
Accounting Standards: 

Over the years, the design of Energy's processes and internal controls 
for developing its overall environmental liability estimate has evolved 
and improved, which enabled its auditors to determine that Energy's 
financial statements that reported these estimates were presented 
fairly and in accordance with federal accounting principles from fiscal 
years 1999 through 2004. Beginning in fiscal year 1999, Energy issued 
written internal control guidance to its field offices outlining 
requirements they are to follow in the development and annual update of 
environmental liability estimates, such as assigning responsibilities, 
maintaining supporting documentation, and reviewing and approving the 
estimates. Energy's estimating process for its legacy waste cleanup, 
which represented 62 percent of its fiscal year 2004 environmental 
liability estimate, normally starts with life cycle cost estimates that 
are usually prepared by Energy's contractors based on the extent of 
cleanup, timing of the work, and funding levels. External independent 
reviews are to be conducted each year on selected projects, and 
headquarters management is to perform baseline validation reviews of 
projects before they are put under Energy's configuration control 
process. The configuration control process requires that proposed 
changes to a particular project, such as a change in cost estimate or a 
change in work scope, be approved by Energy's configuration control 
board.[Footnote 25] Energy's second largest environmental liability 
component--the future clean up of its active facilities--represented 17 
percent of its 2004 environmental liability total. Unlike the legacy 
waste component that is managed entirely by Energy's Office of 
Environmental Management, active facilities may be managed by any of 
several different programs, such as Energy's Office of Science or the 
National Nuclear Security Administration (NNSA).[Footnote 26] Energy's 
Office of the Chief Financial Officer developed an approach in 1996 
that uses a cost- estimating model to develop its active facilities 
baseline estimate. With the model, various parameters, such as facility 
type and size, are used to estimate the total cost of cleanup, 
including facility deactivation and decommissioning. Some locations, 
such as the Idaho National Laboratory, have developed their own site-
specific active facilities liability estimates, and thus, are not 
included in the baseline model. Idaho lab officials indicated they 
develop their estimate based on more specific information about their 
facilities than the baseline model requires, which enables them to 
prepare a more detailed active facilities estimate. 

Accounting standards recognize that no one accounting estimate can be 
considered accurate with certainty.[Footnote 27] One of the auditors' 
criticisms of Energy's fiscal year 1998 environmental liability 
estimate was that it did not sufficiently reflect significant 
uncertainties associated with the technical cleanup scope of the 
program. Thus, in fiscal year 1999 Energy began adding an amount--which 
Energy refers to as a contingency estimate--to its environmental 
liabilities baseline amount to help recognize the risks associated with 
its projects, such as the reliance on new technology and complex 
construction projects. In fiscal year 2004, Energy added $33.2 billion 
to its baselines estimates for this contingency estimate, 18.3 percent 
of its total environmental liabilities, which the auditors reviewed as 
part of Energy's annual financial statement audit.[Footnote 28] 

Although the contingency amount is significant, it is not intended to 
estimate all uncertainties. Federal accounting standards require 
recording a liability only when a future outflow of resources is 
considered both probable and measurable. The estimated liability may be 
a specific amount or range of amounts. If the estimate is a range, the 
standards require only the minimum amount in the range to be recognized 
unless some amount within the range is a better estimate. Energy 
developed its contingency methodology to derive its best estimate 
within the range. For each project, the cognizant project manager 
assigns a risk score of one to five to each of three project 
characteristics: project definition, which refers to how well the 
project is defined in terms of its cost, schedule, and scope; 
innovation, which refers to the maturity of technology upon which the 
project is reliant; and complexity, which refers to the difficulty and 
number of processing and treatment steps required. These risk scores 
are then input to a statistical model that predicts the range of total 
life-cycle cleanup costs and the mean within the range. The difference 
between the mean and the current project baseline total is the amount 
that is recorded as the contingency estimate. 

This additional contingency amount is necessary because Energy's 
cleanup cost estimates can and have experienced significant increases. 
For example, Energy is currently constructing a waste treatment plant 
consisting of three treatment facilities, an analytical laboratory, and 
several support structures to attempt to treat over 53 million gallons 
of radioactive and hazardous waste at its Hanford location, but this 
complex project has experienced several cost increases. It was 
originally approved for $4.3 billion in 2000, but later increased to 
$5.8 billion in 2003. Subsequent problems--including required changes 
to the design's seismic criteria after the seismic assumptions were 
found inadequate--resulted in the contractor revising the cost estimate 
in 2005 to $8.0--$8.3 billion, which Energy has not yet approved. The 
Army Corps of Engineers (Corps) reviewed the contractor's revised cost 
estimate under an agreement with Energy, and found that the actual cost 
could be an additional $1.3 billion higher than the revised estimate. 
Although Energy has not yet approved a revised estimate, both the 
contractor's revised estimate and Corps' review of it indicated that 
the final cost will likely be significantly higher than the current 
$5.8 billion estimate. At Energy's request, the contractor subsequently 
submitted a more detailed cost estimate in early fiscal year 2006, 
which the Corps is now reviewing. Because of the uncertainty of the 
project estimate, Energy added both a project-specific contingency 
estimate and included this project in the statistical model calculation 
of its overall contingency estimate in fiscal year 2005. These 
construction cost increases are the types of things for which Energy 
established its contingency amount. Using this overall approach to 
develop its environmental liability estimate, Energy has been able to 
produce an auditable estimate from fiscal years 1999 through 2004. 

Figure 7: Aerial View of the Waste Treatment Plant under Construction 
at Hanford: 

[See PDF for image] 

[End of figure] 

Minor Improvements at Energy Would Help Enhance Reliability of 
Estimates: 

In its audit report on Energy's fiscal year 2004 financial statements, 
Energy's independent auditors did not identify any material weaknesses 
or reportable conditions related to environmental liabilities, but did 
identify two matters related to environmental liabilities that 
warranted communicating to management for corrective action.[Footnote 
29] While not material to the overall estimate, continued attention to 
improvement helps ensure the future auditability of the estimate. The 
following are the issues the auditors identified in fiscal year 2004. 

* As previously discussed, Energy uses a cost-estimating model to 
estimate its environmental liability for the future remediation of 
active facilities. Field location personnel are responsible for 
inputting and verifying certain facility data such as type of facility 
(e.g., office space, laboratory), size, and a general characterization 
of the type of contamination in the facility. The model then uses the 
data to estimate the active facilities' portion of the environmental 
liability estimate. In fiscal year 2004, the auditors tested a 
statistical sample of facilities and structures from each of five 
locations to test the reliability and accuracy of selected facility 
data, and found immaterial errors at two of the five locations. The 
auditors made recommendations to correct the specific errors and to 
improve internal controls for verifying the accuracy of the data. 

* The auditors' review of selected key projects identified two 
instances where the field location did not have adequate supporting 
documentation on file for its cost estimates. For both projects, the 
field location was ultimately able to produce detailed information that 
satisfied the auditors as to the reasonableness of the cost estimates. 
However, the auditors made recommendations to establish procedures to 
ensure that all project cost estimates were adequately supported by 
written documentation and reviewed. 

In fiscal year 2005, the auditors also noted immaterial errors in the 
active facilities' data and supporting documentation tested, although 
the specific locations at which these errors were identified may have 
changed. The auditors made specific recommendations in each instance, 
and indicated that management generally agreed with the findings and 
was responsive to the recommendations. 

In addition, we learned of an instance during our review where the 
estimated cleanup cost of a particular project was erroneously excluded 
from a prior-year environmental liability estimate. Specifically, in 
fiscal year 2003, Energy's Office of Environmental Management recorded 
a liability for the estimated cost of operating the Savannah River 
Site's H Canyon Processing Facility through fiscal year 2007, and 
assumed that NNSA would take over responsibility for the facility and 
record the liability for fiscal years 2008 through 2010. However, NNSA 
never agreed to take over responsibility for this facility and thus did 
not record those costs, which were estimated at $632 million. The 
Office of Environmental Management subsequently included the full 
amount in its fiscal year 2004 estimates. Subsequent to the costs being 
excluded, Energy issued a policy requiring such transfers to be 
formally documented, agreed to by the affected parties, and approved by 
the Secretary of Energy through the Chief Financial Officer. If 
properly implemented, this should help ensure that estimates associated 
with such transfers are not excluded in future estimates. 

While these errors and omissions were not material to the overall 
liability estimate, continued attention and improvements to Energy's 
internal controls would help provide additional assurance that its 
overall environmental liability estimates are reliable and are reported 
in accordance with federal accounting standards. 

Outdated and Incomplete Financial Management Guidance Impeded Defense's 
Ability to Reliably Estimate Environmental Liabilities: 

At the time of our review, the accounting guidance provided by 
Defense's Financial Management Regulations (FMR) had not been updated 
to reflect current federal accounting standards for determining and 
reporting environmental liabilities. This outdated and incomplete 
guidance contributed to financial reporting errors in fiscal years 2004 
and 2005 as follows. 

* Changes in federal accounting standards, which eliminated the asset 
category of National Defense Property, Plant, and Equipment, and 
changed the required accounting for the associated environmental 
liabilities were issued in May 2003.[Footnote 30] Defense's FMR had not 
been timely updated to reflect the effect of these changes for 
recognition of cleanup costs related to nuclear ships and submarines. 
Consequently, the Navy was recording the cleanup cost estimates in full 
at the time the ships and submarines were placed into service rather 
than incrementally over the useful life of the vessels, as the new 
standards required. This could result in an overstatement of the 
estimated environmental liability for the affected vessels. 

* FMR accounting guidance did not completely identify all the budgetary 
cost elements that should be considered when determining the unpaid 
costs required to be included in reported environmental liability 
estimates.[Footnote 31] In certain circumstances, such as for estimates 
of remediation costs on BRAC bases, some Defense component officials 
told us that they were excluding certain cleanup costs once 
appropriations had been received to pay those costs, even though actual 
payments had not yet been made. As a result, certain costs (e.g., 
unsigned contracts) intended to be paid for with prior-year budgetary 
authority were not included in BRAC cleanup cost estimates, even though 
this is required to comply with federal accounting standards. 

Defense Office of Comptroller financial management personnel told us 
that the FMR had not been updated in a timely manner because of 
personnel turnover and inadequate staffing. Subsequent to our 
inquiries, but prior to the release of this report, the FMR was updated 
to address the issues we identified, and to reflect current federal 
accounting standards requirements for measuring and recognizing 
estimated cleanup costs related to environmental liabilities. According 
to Defense component officials, cleanup cost estimates will be reported 
in accordance with the new FMR guidance no later than September 30, 
2006. 

Defense's Existing Policies and Procedures for Determining, Reporting, 
and Documenting Environmental Liability Estimates Were Not Consistently 
Followed: 

In addition to the guidance problems, certain policies and procedures 
included in Defense's FMR related to environmental liabilities are not 
being consistently followed by some military service components. 
Further, there continues to be a lack of adequate documentation 
supporting estimates of environmental liabilities, which precluded 
Defense's management from properly carrying out their oversight 
responsibilities related to the estimation process. This lack of 
documentation also precludes Defense's financial auditors from making a 
determination of the reasonableness of the liability amount recorded in 
the financial statements. These compliance lapses were caused in part 
by a lack of financial management review and oversight of the 
environmental liability estimation process at both the Department of 
Defense and the military services level. We identified several 
instances where the failure to follow established policies and 
procedures resulted in errors in the liability estimates, as follows. 

* The Navy has not been estimating and reporting all costs for 
disposing of spent nuclear fuel produced by its nuclear ships and 
submarines. The Navy's financial reporting and program management 
personnel believed that the Navy's responsibility for estimating costs 
for spent nuclear fuel disposal stopped with the fuel's removal from 
the ship or submarine, since at that point the fuel became the property 
of Energy. The Navy's management assumed, but had not verified, that 
Energy was recording this liability. However, further discussions with 
the Navy's and Energy's financial management confirmed that the 
liability for disposing of nuclear fuel generated by Navy ships and 
submarines was not being estimated and reported by either department. 
Prior to the issuance of this report, Navy financial management assumed 
responsibility for reporting a liability for disposing of spent nuclear 
fuel, which Defense has estimated may be as much as $4 billion, in its 
financial statements beginning in fiscal year 2006. 

* The Navy's financial management was unaware that the Navy had been 
discontinuing the reporting of cost estimates for disposing of nuclear 
ships and submarines when appropriated funds were obligated, which is 
prior to the actual disposal costs being paid, and is contrary to 
federal accounting requirements. Naval Sea Systems, which has 
responsibility for estimating and reporting these disposal liabilities, 
ceased doing so once individual ships or submarines were scheduled for 
inactivation, a contract for disposal was executed with the Puget Sound 
Naval Shipyard, and funds were obligated for the cost of disposal. 
Because it is not unusual for the actual inactivation of a ship or 
submarine to be extended to meet operational demands and for the 
disposal activities to take over a year to accomplish, costs may not be 
paid for months or years after the liability estimate was omitted from 
the reporting process. As a result, the Navy has understated reported 
environmental liabilities by the unpaid costs of ships and submarines 
still in the process of inactivation and disposal. 

* The Air Force has not been including in its environmental liability 
estimates all of the unpaid costs that are required by both Defense's 
FMR and federal accounting standards.[Footnote 32] Personnel at two Air 
Force major commands told us that estimates for completing Defense 
Environmental Restoration Program (DERP) efforts reflected only those 
costs that had not yet been funded. Costs that had been incurred in 
prior years and for which funding had been received but payments had 
not been made were not included in the DERP estimates. These omissions 
were also contrary to Air Force guidance that required estimates to 
include "all anticipated costs required to effect the restoration of 
the site."[Footnote 33] Because Air Force financial management did not 
have a monitoring process in place to ensure that guidance was 
understood and being followed, the Air Force has been understating its 
cost estimates by the amount of incurred but unpaid prior-year costs. 

* The military services are not preparing or retaining documentation 
that supports the consistency and adequacy of their reported 
environmental cleanup and disposal cost estimates. In its annual 
Performance and Accountability Reports for fiscal years 2003 through 
2005, Defense has acknowledged--and independent financial auditors have 
reported--that inadequate supporting documentation for environmental 
liabilities is an ongoing material weakness in the department's system 
of internal control. In addition, in recent audit reports specifically 
targeting environmental liability controls, various military audit 
agencies reported a general lack of adequate documentation to support 
cost estimates in the military services.[Footnote 34] One auditor told 
us that environmental personnel completing or updating environmental 
liability estimates erroneously believed that an electronic file 
created by a cost estimating model was sufficient supporting 
documentation, even though the model did not explain or contain source 
documentation for variables used in the cost calculation, such as 
remaining capacity, usage rates, contractors estimates, or engineering 
studies. According to military service representatives, environmental 
engineers see no need to retain supporting documentation for cost 
estimates since management does not request or review it. Neither 
financial or program management nor auditors will be able to assess the 
reliability of environmental cost estimates until estimators develop 
and retain sufficient documentation to support their calculations. 

Defense's Internal Controls Are Inadequate to Help Ensure That All 
Cleanup Sites Are Included in the Environmental Liability Estimate: 

Even if the guidance and monitoring issues previously discussed are 
remedied, none of the military services have a structured process in 
place and working at the installation level to provide reasonable 
assurance that all known contaminated sites and hazardous operations 
are included in the reported environmental liability cost estimates. 
One example of such a control would be a comparison of the cleanup 
sites and hazardous waste operations actually being reported by 
specific programs on each base to a comprehensive inventory of all 
sites and hazardous waste operations located on each base that was 
prepared without regard to reporting program or Defense component use. 
Defense's FMR requires a reconciliation of environmental and property 
records, and indicates the purpose of the resulting inventory is to 
ensure that all disposal liabilities are recognized.[Footnote 35] The 
FMR stops short of specifically requiring a comparison of the 
reconciled site inventory to sites included in environmental liability 
reporting, and no Army, Navy, or Air Force program or financial 
management personnel we spoke with were aware of any activity at the 
base level making such a comparison. As a result, contaminated sites 
and operations that are not included in a reporting program are at risk 
of not being identified and reported as required, and the related cost 
estimates could be understated. For example, we spoke with Defense 
component personnel who expressed conflicting views about 
responsibility for reporting cleanup costs associated with underground 
storage tanks physically located on a military base that contain fuel 
owned and managed by another Defense component. Thus, the associated 
liability is at risk of not being reported by any Defense component. 
Without a comparison of site lists as described, such an oversight 
would likely go undetected. 

Major Uncertainties Will Affect Future Cleanup Costs and Funding 
Demands: 

Beyond the issues previously discussed that make Defense's and the 
federal government's environmental liability estimates unauditable, the 
ultimate cost of the cleanup will be affected by major uncertainties, 
the impact of which cannot be currently estimated. These uncertainties, 
which primarily involve the lack of feasible or proven remediation 
technologies, regulatory impediments and legal challenges to cleanup 
and disposal, and uncertainties as to the agencies' abilities to meet 
their current cost and schedule targets, do not impact the auditability 
of the liability because under current federal accounting standards a 
potential liability that cannot be estimated but is considered at least 
reasonably possible to occur is not required to be recorded on the face 
of the financial statements, only disclosed in the notes. Both Energy 
and Defense currently disclose various uncertainties in the notes to 
their financial statements, although improvements to their disclosures 
are warranted at both agencies. It is important to understand the 
nature and extent of these uncertainties in assessing future funding 
demands for environmental cleanup because they have the potential to 
materially affect the ultimate cost and timing of cleanup activities. 

Remediation Technologies for Some Sites Are Nonexistent or Uncertain: 

The nature and extent of contamination the federal government must 
clean up is complex and vast, and suitable technologies to address all 
of the waste do not currently exist. As stated in Energy's fiscal year 
2004 Performance and Accountability Report, estimated cleanup costs at 
sites for which there is no current feasible remediation approach would 
be higher if some remediation were assumed for these areas, but because 
Energy has not identified effective remediation technologies for these 
sites, no basis for estimating costs is available. Energy has 
identified 18 significant uncertainties, at various and multiple 
locations, where no currently feasible remediation technology exists or 
the effectiveness of technologies currently being explored remains to 
be seen. An example of a location for which Energy reported that 
cleanup costs were excluded is the nuclear explosion test area at the 
Nevada Test Site. The Nevada Test Site, an area larger than Rhode 
Island, was the site of over 900 atmospheric and underground nuclear 
test explosions that occurred over four decades ending in 1992. These 
nuclear detonations left residual radioactivity, but most of the 
radioactivity is in highly inaccessible underground locations. 
According to Energy, effective, feasible remediation technologies have 
not yet been developed to address this widespread contamination, and 
Energy's fiscal year 2004 environmental liability estimate primarily 
for the Nevada Test Site only included an estimate of approximately 
$3.3 billion for monitoring of groundwater contamination plumes, 
disposal of active facilities, and long-term stewardship. 

Figure 8: Craters Left As A Result Of Underground Nuclear Testing At 
The Nevada Test Site: 

[See PDF for image] 

[End of figure] 

In other cases, potential remediation technologies have been 
identified, but their effectiveness has yet to be successfully 
demonstrated. For example, during operations at Energy's Hanford 
location from 1943 through 1989, Energy generated large volumes of 
hazardous and radioactive waste. Some of this waste was deposited 
directly into the ground, while some of the most hazardous and 
radioactive material was stored in underground tanks that have leaked 
contaminants into the soil. Over time, concern has developed about the 
impact of Hanford's waste moving through the ground and toward the 
Columbia River. As we have previously reported, Energy has used three 
main approaches to treat the groundwater near the river, but has 
experienced problems with all three.[Footnote 36] For example, one 
approach has been to use a chemical barrier near the Columbia River to 
block chromium from entering the river near major fish breeding 
areas.[Footnote 37] The barrier consists of a series of wells where 
Energy injected a chemical into the groundwater that reacts with 
chromium to change it to a less hazardous and less mobile form. 
However, in 2004 Energy reported that the barrier was not fully 
effective, and that the hazardous form of chromium was detected in 
groundwater readings beyond the barrier. Energy is currently evaluating 
alternative approaches to contain the chromium or fix the barrier. 
Until an effective remediation technology can be identified, tested, 
and implemented, the ultimate cost of cleaning up this groundwater 
contamination remains unknown. 

Regulatory Requirements and Legal Challenges Remain Unresolved: 

Various regulatory requirements and legal challenges also affect the 
ultimate cost, extent, and timing of cleanup at several sites. The 
primary uncertainty facing the federal government's cleanup efforts 
relates to the opening of the national geologic repository for high- 
level waste and spent nuclear fuel. The disposal of Energy's and 
Defense's high-level waste and spent nuclear fuel is contingent upon 
the opening of this repository planned for Yucca Mountain. However, 
multiple challenges related to the regulatory and legal requirements it 
must meet have caused several delays in its licensing and design. 
Additionally, the degree of cleanup required by regulations can vary 
from site to site and depend on how the land is expected to be used 
after it has been cleaned up. These decisions must usually be agreed 
upon by various federal and state agencies, with input from interested 
parties, such as community representatives. Even after an agreement has 
been signed, various parties may raise legal challenges to the 
agreement, the outcome of which could affect both the cost and timing 
of cleanup plans. Thus, it can take years to determine the final 
cleanup requirements for some sites. Until these issues are resolved, 
the ultimate cost of cleanup and disposal of the federal government's 
environmental contamination cannot be fully determined. The following 
are examples of current regulatory and legal uncertainties Energy and 
Defense are facing, the resolution of which could significantly impact 
the final cost of cleanup. 

* Over the years, regulatory requirements and legal challenges have 
caused multiple delays in the licensing and design of the Yucca 
Mountain geologic repository, which is intended to be the nation's 
first high-level waste and spent nuclear fuel disposal site. For 
example, Energy reported that it did not meet its goal of submitting a 
license application for the repository to the Nuclear Regulatory 
Commission by the end of calendar year 2004, in part due to a July 2004 
decision by the U.S. Court of Appeals to invalidate the Environmental 
Protection Agency's (EPA) radiation standard, which set a 10,000 year 
time frame in which the amount of radiation that can be released from 
the repository would be limited.[Footnote 38] The court held that EPA 
violated section 801 of the Energy Policy Act of 1992, which required 
the agency to issue standards for Yucca Mountain based upon and 
consistent with findings by the National Academy of Sciences. In August 
2005, EPA issued a proposed standard that extended protection to 1 
million years to be consistent with the Academy's recommendations. 
Because the repository must be designed to comply with the EPA 
standard, approval of a revised standard is critical. Consequently, 
Energy acknowledged that it will not meet its goal of commencing 
disposal operations by 2010 but has not committed to a new target date 
for opening the repository. Energy acknowledged that delays in opening 
the repository could cause project costs to increase, including the 
cost of constructing the repository as well as interim storage and 
other costs, for the Energy and Defense locations that are expected to 
ship waste to Yucca Mountain. For example, officials at Energy's 
Savannah River location estimated that if there was a 5-year delay in 
the opening of the repository, the additional costs incurred for their 
spent nuclear fuel disposal could range anywhere from about $50 million 
to $200 million, depending on how Energy decides to deal with the fuel 
during such a delay. 

Figure 9: View of an Exploratory Tunnel at Yucca Mountain: 

[See PDF for image] 

[End of figure] 

* The 2005 Defense Base Closure and Realignment Commission recommended 
22 major base closures and 33 major base realignments. Although cleanup 
costs for Defense property in prior BRAC rounds are included in 
Defense's environmental liabilities, some of the cleanup costs that 
will result from the 2005 BRAC round have not yet been estimated, such 
as the estimated cleanup cost of currently operational ranges with 
ordnance or other explosive material. In addition, the decision to 
realign or close a base may result in a change to its planned use and 
thus require a change in cleanup estimate based on those plans. For 
example, the cleanup requirements and therefore the cleanup costs are 
less if the property is expected to be used for industrial purposes 
than if it is to be used for residential purposes. But before planned 
use can be decided, Defense must determine who the next owner will be. 
If, as in previous BRAC rounds, most property is transferred to 
nonfederal ownership for economic development and other purposes, 
communities receiving the property transfer will likely want 
contamination removal. Defense may prefer containment to save costs, 
thus, the adopted cleanup plan and final associated costs will often be 
the result of negotiation and agreement among all of the involved 
parties including Defense, EPA, and various community representatives. 
Until all of these significant new decisions are made for each site, 
the cost to remediate excess property as a result of the 2005 BRAC 
round remains uncertain. 

* At the Idaho National Laboratory there is a great deal of controversy 
over how much buried transuranic waste Energy will have to excavate and 
remove from the lab's Subsurface Disposal Area, an 88-acre area where 
radioactive transuranic waste has been buried in shallow pits and 
trenches since 1952. In April 2002, the State of Idaho sued Energy over 
its interpretation of a 1995 settlement agreement concerning the amount 
of transuranic waste that must be removed from the Idaho National 
Laboratory. Specifically, Energy asserted that the agreement requires 
only certain stored waste to be removed, but the state asserted that 
the agreement also applied to all buried transuranic waste. In March 
2003, the District Court of Idaho ruled in favor of the state and 
concluded that Energy was responsible for removing all transuranic 
waste buried or stored at the laboratory. Energy appealed, and in 
December 2004, the court of appeals reversed the decision and sent the 
case back to the district court for further consideration. Energy is 
currently removing selected portions of the buried waste totaling 4 
acres where it has identified the highest concentrations of 
radioactivity and has recorded a corresponding environmental liability 
for this portion of the waste. However, officials indicated that the 
cost to excavate all 88 acres would be extremely costly and cannot be 
estimated. Should the state ultimately prevail, the resulting 
additional costs could be substantial. 

Figure 10: An Excavator Removes Buried Transuranic Waste at Energy's 
Idaho Cleanup Location: 

[See PDF for image] 

[End of figure] 

Ability to Effectively Meet Current Cost and Schedule Targets is 
Uncertain: 

Both Energy's and Defense's environmental liabilities estimates are 
based upon current plans and targets for accomplishing their cleanup 
responsibilities. However, our previous reports have identified project 
management weaknesses at both agencies that could hinder them from 
meeting these goals.[Footnote 39] At Energy, we have previously 
reported that many of its major projects, including environmental 
cleanup projects, have experienced substantial cost overruns and 
delays. For example, our 2002 assessment of Energy's contract reform 
initiatives found that 5 of the 16 major projects we examined had more 
than doubled in cost--for billions of dollars in total cost overruns-- 
and experienced more than 5 years in: 

delays.[Footnote 40] In late 2002, Energy began implementing an 
accelerated cleanup plan to address the uncontrolled cost and schedule 
overruns that had occurred over many years. In describing this plan, 
Energy reported that it would reduce the total cost of the cleanup 
program by an estimated $50 billion and would complete its cleanup 
activities by 2035--35 years earlier than called for in previous plans. 
While Energy has made some progress since it implemented its plan, both 
we and the Energy Inspector General have identified cleanup projects 
and activities that are behind schedule and thus may cost more than 
currently planned.[Footnote 41] Although Energy reevaluates and adjusts 
its environmental liability estimates each year, its history of cost 
and schedule overruns raises additional uncertainties as to what the 
ultimate cost of cleanup will be. 

In addition to the processes and internal control weaknesses discussed 
earlier that have prevented Defense from developing an auditable 
estimate of its environmental liabilities, we have also previously 
reported on program management weaknesses at Defense that add to the 
uncertainty about its current estimates. For example, we previously 
reported that Defense had made limited progress in its program to 
identify, assess, and clean up sites that may be contaminated with 
military munitions, and that its plan to address potentially 
contaminated sites relied on preliminary cost estimates that can change 
significantly because they were developed using incomplete 
information.[Footnote 42] In another report, we found that the U.S. 
Army Corps of Engineers did not have a sound basis for determining that 
about 38 percent of former defense sites--sites now owned by states, 
local governments, and individuals and used for parks, farms, schools, 
and homes--did not need further study or cleanup action.[Footnote 43] 
As a result, the Corps' assessment may not be accurate, and the Corps 
cannot be reasonably certain that it has identified all hazards that 
may require further study or cleanup. These issues raise questions as 
to whether Defense and Energy can effectively perform the necessary 
cleanup work within current cost and schedule targets and thus raise 
additional uncertainties as to the ultimate cost of cleanup. 

Energy's and Defense's Financial Disclosures Acknowledge Uncertainties, 
but Improvements Are Warranted: 

As mentioned earlier in this report, federal accounting standards 
require recording a liability only if the future outflow of resources 
is considered both probable and measurable. If one of the two 
conditions is not met but the future outflow of resources is considered 
at least reasonably possible, then it does not need to be recorded as a 
liability in the financial statements but should be disclosed in the 
notes to the financial statements. Both Energy and Defense disclose in 
the notes to their financial statements various uncertainties that are 
not included in their liability estimates because the events are not 
considered probable or the amount of the liability cannot be reasonably 
estimated. Some examples of Energy's disclosures in its notes to the 
fiscal year 2004 financial statements include the following. 

* "The Department has identified approximately 10,400 potential release 
sites from which contaminants could migrate into the environment. 
Although virtually all of these sites have been at least partially 
characterized, final remedial action and/or regulatory decisions have 
not been made for many sites. Site-specific assumptions regarding the 
amount and type of contamination and the remediation technologies that 
will be utilized were used in estimating the environmental liability 
related to these sites." 

* "Cost estimates for management of the Department's high-level waste 
are predicated upon assumptions as to the timing and rate of acceptance 
of the waste by the first geologic repository. Delays in opening the 
repository could cause EM project costs to increase." 

* "Estimated cleanup costs at sites for which there is no current 
feasible remediation approach are excluded from the baseline estimates, 
although applicable stewardship and monitoring costs for these sites 
are included. The cost estimate would be higher if some remediation 
were assumed for these areas. However, because the Department has not 
identified effective remedial technologies for these sites, no basis 
for estimating costs is available. An example of a site for which 
cleanup costs are excluded is the nuclear explosion test area at the 
Nevada Test Site." 

As noted previously, the State of Idaho is currently in litigation with 
Energy over the amount of transuranic waste that must be removed from 
the Idaho National Laboratory, and in March 2003 the Idaho District 
Court ruled in the state's favor. Energy did not disclose this 
potential liability in the notes to its fiscal year 2004 financial 
statements. We questioned Energy's decision not to disclose this case 
in its fiscal year 2004 financial statements given that it had an 
adverse court ruling at the time that would seem to indicate that there 
was at least a reasonably possible likelihood that Energy would 
ultimately be required to remediate additional acreage. Energy 
officials stated that, at the time, the case was under appeal and they 
thought the likelihood that they would be required to remediate all 
transuranic waste within the 88 acres was remote. However, Energy did 
not document this conclusion, the reasons behind its conclusion, and 
whether its legal counsel concurred with that conclusion in its fiscal 
year 2004 legal representation letter.[Footnote 44] 

Subsequent to the issuance of its fiscal year 2004 financial statements 
on November 15, 2004, the court of appeals reversed the decision and 
sent the case back to the district court for further consideration, 
which is still ongoing. Nonetheless, Energy disclosed this matter in 
the notes to its fiscal year 2005 financial statements. According to 
Energy officials, activities at the site to evaluate the waste in the 
area have indicated that the amount of waste that would have to be 
removed should Idaho prevail would be greater than what Energy 
originally estimated, and thus it documented in its fiscal year 2005 
legal representation letter that there was a reasonably possible 
likelihood of an unfavorable outcome. Energy's fiscal year 2005 
financial statement disclosure noted that the State of Idaho was 
challenging Energy's interpretation of the 1995 settlement agreement 
concerning the shipment of transuranic waste from the Idaho National 
Laboratory. It further disclosed that, should the state prevail, the 
resulting costs could be substantial but Energy had not recorded a 
provision for such costs in its financial statements. 

Because of these and other uncertainties discussed in Energy's 
Performance and Accountability Report, Energy's auditors have included 
an emphasis paragraph with the audit opinion since fiscal year 1999, 
emphasizing that the cost estimates supporting Energy's environmental 
liabilities are based upon assumptions regarding future actions and 
decisions, many of which are beyond Energy's control.[Footnote 45] In 
essence, this highlights the fact that, should circumstances change in 
the future, the effects of such changes could be material. 

Defense disclosed one uncertainty in the notes to its financial 
statements. Defense acknowledged that, because the extent of buried 
chemical munitions and agents is not known, the Army was unable to 
provide a reasonable estimate of its liability to clean up buried 
chemical munitions and agents. 

However, Defense failed to disclose the liability implications of its 
2005 BRAC round. In its September 8, 2005, report to the President, the 
2005 Defense Base Closure and Realignment Commission reported that 
Defense will likely incur additional environmental cleanup and 
restoration costs resulting from these base realignment and closure 
activities. Since the additional costs could be significant, the lack 
of a discussion of the 2005 BRAC round in the notes precludes financial 
statement users from having a full understanding of Defense's 
environmental liability exposures. 

Conclusions: 

The federal government is responsible for cleaning up environmental 
contamination that is both complex and widespread. The estimated cost 
of cleaning up this waste is substantial and will be competing for 
limited federal resources over many years. Therefore, proper reporting 
of the government's environmental liabilities is important to help 
determine priorities for cleanup and disposal activities and to 
appropriately consider future budgetary resources needed to carry out 
these activities. However, weaknesses in Defense's processes and 
internal controls are largely responsible for the federal government's 
inability to reasonably estimate or adequately support the amounts 
reported for its environmental liabilities. Also, significant 
uncertainties at both Energy and Defense surrounding how waste will be 
cleaned up and when it will be disposed of make it inherently 
impossible to fully determine the ultimate cost of cleanup; therefore, 
it is essential that disclosures of such uncertainties help keep 
policymakers informed of potential future resource needs. Without 
adequate policies, processes, and internal controls for identifying, 
estimating, recording, and disclosing its environmental liabilities, 
the federal government does not have sufficient information on the 
potential cost of addressing these liabilities for long-term fiscal 
planning. 

Recommendations For Executive Action: 

To address Defense-related deficiencies, we are making the following 
eight recommendations. To improve internal controls over the 
development and reporting of environmental liabilities and to prevent 
recurrence of the types of problems we identified in our report, we 
recommend that the Secretary of Defense direct the Under Secretary of 
Defense (Comptroller) and the Secretaries of the Army, Navy, and Air 
Force, as appropriate, to: 

* develop, document, and implement a program for financial management 
review, approval, assessment, and monitoring of the estimation and 
reporting processes for environmental liabilities, 

* improve compliance with federal accounting standards and FMR guidance 
and remedy the specific deficiencies we identified by: 

* designing a process and controls at the department level to identify 
new federal accounting standards and to update the FMR for changes and 
additions in a timely manner, 

* reassessing its process for ensuring that all required financial 
statement disclosures are made, and disclosing in the notes to the 
financial statements for the department and for the Army, Navy, and Air 
Force, as appropriate, all significant uncertainties in accordance with 
current federal accounting standards, including the effects of the 2005 
BRAC round on reported environmental liabilities, 

* estimating, updating, and reporting the accrued environmental 
liability for the cost of disposing of the Navy's spent nuclear fuel, 

* implementing revised FMR guidance for recognizing cleanup costs for 
the Navy's nuclear ships and submarines over the estimated lives of 
those assets, 

* including all appropriate budget elements for reporting financial 
liabilities for (1) the Navy's nuclear ships and submarines, (2) the 
Air Force's cleanup and restoration costs, and (3) all costs intended 
to be paid for with prior-year budgetary authority (e.g., unsigned 
contracts) by the Army, Navy, and Air Force, 

* reconciling the Army's, Navy's, and Air Force's installation-level 
environmental records to installation-level property records as 
required and then using the corrected site inventories to determine 
that all sites with cleanup or corrective action costs and all 
hazardous waste operations with cleanup or closure costs are included 
in financial reports of environmental liabilities and all are reported 
by the appropriate Defense component, and: 

* producing and maintaining adequate supporting documentation for Army, 
Navy, and Air Force environmental liabilities at all levels in 
accordance with internal control standards in the federal government. 

To address the deficiency identified with Energy's legal representation 
letters, we recommend that the Secretary of Energy reassess Energy's 
process for ensuring that all litigation is appropriately documented in 
its legal representation letters, including its evaluation of the 
likelihood of an unfavorable outcome, the basis for its conclusion, and 
whether its legal counsel concurred with that conclusion. 

Agency Comments and Our Evaluation: 

We provided a draft of this report to Defense for review and comment. 
In written comments, Defense's Principal Deputy Under Secretary of 
Defense (Comptroller) stated that Defense concurred with all eight 
recommendations in the report and was taking actions to correct the 
noted deficiencies. For example, Defense stated that the military 
departments have been instructed to include steps and milestones in 
their Financial Improvement Plan[Footnote 46] to comply with several of 
the recommendations. Defense also established a workgroup to improve 
the financial reporting of environmental liabilities, and it plans to 
assist the military departments in meeting the key milestones. Defense 
also noted that it was updating the financial statement reporting 
guidance in the FMR to improve its disclosures and would change some of 
its environmental liability accounting procedures to comply with 
applicable federal accounting standards and FMR guidance. Once properly 
implemented, these steps should significantly improve Defense's 
environmental liability reporting. 

We received verbal comments from Energy officials on a draft of this 
report. Energy officials concurred with our recommendation, and stated 
that they will implement procedures to help ensure that all cases are 
appropriately documented in their legal representation letters. 
Specifically, Energy officials said that the headquarters program 
offices will now send the field offices' summary evaluations and backup 
documentation on each case to the office of the Chief Financial Officer 
in addition to the office of General Counsel. Once the office of 
General Counsel prepares the final legal representation letter, staff 
in the office of the Chief Financial Officer are to compare the cases 
listed in the letter with the case summaries received from the field 
offices to help ensure that all cases were appropriately included in 
the letter. If properly implemented, these actions appear responsive to 
the recommendation. 

We are sending copies of this report to other interested congressional 
committees; the Secretary of Energy; the Secretary of Defense; the 
Under Secretary of Defense (Comptroller); and the Secretaries of the 
Army, the Air Force, and the Navy. Copies will be made available to 
others upon request. In addition, this report is available at no charge 
on the GAO Web site at [Hyperlink, http://www.gao.gov]. 

Please contact me at (202) 512-9508 or [Hyperlink, calboml@gao.gov] if 
you or your staffs have any questions about this report. Contact points 
for our Offices of Congressional Relations and Public Affairs may be 
found on the last page of this report. Other GAO contacts and key 
contributors to this report are listed in appendix III. 

Signed by: 

Linda M. Calbom: 
Director: 
Financial Management and Assurance: 

[End of section] 

Appendixes: 

Appendix I: Scope and Methodology: 

To determine the nature and extent of the federal government's reported 
environmental liabilities, we reviewed the Performance and 
Accountability Reports of all federal agencies that reported 
environmental liabilities for fiscal year 2004, the most recent 
completed fiscal year at the time we began our review. Because Energy's 
fiscal year 2004 financial statements were audited by an independent 
public accounting firm and determined to be reliable, we reviewed those 
statements, traced and verified environmental liabilities amounts to 
supporting schedules, and reviewed audit workpapers, where available. 
We otherwise used the work performed by the independent auditors and 
did not perform additional audit procedures to verify the completeness 
or accuracy of the amounts reported. Because Defense has acknowledged 
serious data reliability problems related to its financial systems and 
information, auditors did not attempt to perform audit procedures and 
disclaimed an opinion on Defense's fiscal year 2004 financial 
statements. Therefore, it was not our objective to--and we did not-- 
audit the completeness and accuracy of Defense-reported environmental 
liabilities amounts. Although we have previously reported on the 
potential for Defense to incur costs related to voluntary restoration 
initiatives in conjunction with returning overseas Defense facilities 
to host nations, these activities are not reported as environmental 
liabilities in its financial statements, and we did not review its 
international operations or processes.[Footnote 47] Since Defense- 
reported amounts are not reliable, we are providing them in this report 
for informational purposes only. We also reviewed Energy's and 
Defense's fiscal year 2005 Performance and Accountability Reports 
primarily to determine whether any significant new issues had arisen 
subsequent to the issuance of the fiscal year 2004 statements. 

At Energy and Defense, we interviewed agency officials and performed 
site visits to obtain a better understanding of the types of 
environmental contamination being addressed. We met with officials at 
Energy headquarters and visited its three largest cleanup locations 
(the Hanford nuclear reservation in Washington State, the Savannah 
River location in South Carolina, and the Idaho National Laboratory in 
Idaho). For Defense, we met with program management, financial 
management, and financial reporting officials for the relevant 
environmental programs for each military service. For additional 
background information, we also visited Defense's Puget Sound Naval 
Shipyard in Washington State, which dismantles and disposes of nuclear 
ships and submarines that are being removed from service. 

To determine the extent to which Energy's and Defense's processes and 
internal controls are adequately designed to assure estimating and 
reporting environmental liabilities in accordance with federal 
accounting standards, we interviewed Energy's financial auditors and 
reviewed selected workpapers prepared for its annual financial 
statement audit; interviewed Energy and Defense program and financial 
management officials at agency headquarters and at the field locations 
we visited; and reviewed agency documentation supporting their 
processes. We did not review or test detailed contractor estimates but 
focused on each agency's procedures for compiling and developing its 
environmental liability amounts. We compared Energy's and Defense's 
processes and internal controls to GAO's Standards for Internal Control 
in the Federal Government[Footnote 48] and reviewed applicable federal 
accounting standards and guidance for the recognition and reporting of 
environmental liabilities. 

To determine the nature and types of uncertainties that might affect 
the ultimate cost of Energy's and Defense's environmental cleanup 
efforts, we interviewed Energy and Defense program and financial 
management officials and reviewed supporting documentation. During 
interviews with agency, contractor, and state agency officials, we 
inquired about sites that have not been fully estimated or reported as 
well as other uncertainties that could affect the total cost to the 
federal government of cleaning up the contamination. We also reviewed 
Energy's and Defense's recent Performance and Accountability Reports 
for further information on disclosed uncertainties that are not 
estimated in their environmental liabilities balances, and reviewed our 
relevant prior reports. Our work was conducted from October 2004 
through January 2006 and was performed in accordance with generally 
accepted government auditing standards. 

[End of section] 

Appendix II: Comments from the Department of Defense: 

UNDER SECRETARY OF DEFENSE: 
COMPTROLLER: 
1100 DEFENSE PENTAGON: 
WASHINGTON, DC 20301-1100: 

MAR 15 2006: 

Ms. Linda M. Calbom: 
Director: 
Financial Management and Assurance: 
U.S. Government Accountability Office: 
Washington, DC 20548: 

Dear Ms. Calbom: 

This is the Department of Defense (DoD) response to the Government 
Accountability Office (GAO) draft report, "Environmental Liabilities: 
Long-Term Fiscal Planning Hampered by Control Weaknesses and 
Uncertainties in the Federal Government," dated February 14, 2006 (GAO 
Code 190133/GAO-06-427). The DoD concurs with all eight recommendations 
in the draft report. The Department is already taking actions to 
correct the noted deficiencies. Our detailed response is enclosed. 

The Department appreciates the opportunity to comment on the draft 
report. My staff point of contact is Mr. Phillip Streit. He may be 
reached by email at phillip.streit@osd.mil or by telephone at (703) 697-
0538. 

Sincerely, 

Signed by: 

J. David Patterson: 
Principal Deputy: 

Enclosure: As stated: 

GAO DRAFT REPORT DATED February 14, 2006 GAO-06-427 (GAO CODE 190133): 

ENVIRONMENTAL LIABILITIES: LONG-TERM FISCAL PLANNING HAMPERED BY 
CONTROL WEAKNESSES AND UNCERTAINTIES IN THE FEDERAL GOVERNMENT'S 
ESTIMATES: 

DEPARTMENT OF DEFENSE COMMENTS TO THE GAO RECOMMENDATIONS: 

RECOMMENDATION 1: The GAO recommended that the Secretary of Defense 
direct the Under Secretary of Defense (Comptroller) (USD(C)) and the 
Military Departments, as appropriate to develop, document, and 
implement a program for financial management review, approval, 
assessment, and monitoring the estimation and reporting process for 
environmental liabilities. (p.31/GAO Draft Report): 

DoD Response: Concur. The Department of Defense Financial Improvement 
and Audit Readiness Plan includes key milestones addressing the issues 
of financial management review, approval, and assessment of the 
estimation and reporting process and we will update the plan to include 
a key milestone for developing a program to monitor the estimation and 
reporting process. The USD(C) in conjunction with the Under Secretary 
of Defense (Acquisition Technology & Logistics) established a workgroup 
to improve the financial reporting of environmental liabilities. It is 
a priority of this workgroup to assist the Military Departments in 
meeting the key milestones. The estimated completion date is June 30, 
2008. 

RECOMMENDATION 2: The GAO recommended that the Secretary of Defense 
direct the USD(C) to improve the compliance with financial accounting 
standards and the Department of Defense Financial Management Regulation 
("DoDFMR") guidance and remedy the specific deficiencies by designing 
processes and controls at the Department level to identify new federal 
accounting standards and to timely update the FMR for changes and 
additions. (p.31/GAO Draft Report): 

DoD Response: Concur. The Department's Office of the Deputy Chief 
Financial Officer (DCFO) currently has a published standard operating 
procedure for updating the "DoDFMR" which assigns responsibility for 
each chapter to a policy proponent office. The DCFO will update this 
standard operating procedure to require the policy proponent office to 
monitor the Financial Accounting Standards Advisory Board's publishing 
of proposed and new accounting standards. The policy proponent will be 
required to publish updated guidance by the effective date of the new 
accounting standard or publish a policy letter implementing new 
accounting standards when it is not feasible to update the "DoDFMR" 
before the effective date. The estimated completion date is September 
30, 2006. 

RECOMMENDATION 3. The GAO recommended the Secretary of Defense direct 
the USD(C) and the Military Departments, as appropriate, to improve: 
compliance with federal accounting standards and "DoDFMR" guidance and 
remedy the specific deficiencies by reassessing its process for 
insuring all required financial statement disclosures are made, and 
disclosing in the notes to the financial statements for the Military 
Departments, as appropriate, all significant uncertainties in 
accordance with current federal accounting standards, including the 
effects of the Fiscal Year (FY) 2005 Base Realignment and Closure 
(BRAC) on reported environmental liabilities. (p.31/GAO Draft Report): 

DoD Response: Concur. The "DoDFMR" was updated in October 2005 and 
specifically requires the disclosure of uncertainties in the financial 
statements. We are updating financial statement reporting guidance in 
the "DoDFMR" to specifically require the Military Departments to 
disclose environmental liability uncertainties regarding significant 
specific situations, e.g., the FY 2005 BRAC. We have also instructed 
the Military Departments to include a step in their Financial 
Improvement Plan to ensure they have processes in place to identify and 
disclose uncertainties regarding environmental liabilities for specific 
situations. The estimated completion date for updating the "DoDFMR" is 
August 31, 2006. The estimated completion date for implementation is 
June 30, 2008. 

RECOMMENDATION 4. The GAO recommended that the Secretary of Defense 
direct the Department of the Navy (DON) to improve compliance with 
federal accounting standards and the "DoDFMR" guidance and remedy 
specific deficiencies by estimating, updating, and reporting the 
accrued environmental liabilities for the cost of disposing of spent 
nuclear fuel. (p.31/GAO Draft Report): 

DoD Response: Concur. The DON had not reported the environmental 
liability for disposing of the spent nuclear fuel because they believed 
it was the responsibility of the Department of Energy. The DON has 
since determined that it is their responsibility for reporting the 
liability and is in the process of estimating the cost for disposing of 
the spent nuclear fuel. We have also instructed the DON to include a 
step in their Financial Improvement Plan to track the progress of 
reporting their environmental liabilities for spent nuclear fuel. The 
estimated completion date is March 31, 2006. 

RECOMMENDATION 5. The GAO recommended that the Secretary of Defense 
direct the DON to improve compliance with federal accounting standards 
and the "DoDFMR" guidance and remedy specific deficiencies by 
implementing revised "DoDFMR" guidance for recognizing cleanup cost for 
Navy's nuclear ships and submarines over the estimated lives of these 
assets. (p.31/GAO Draft Report): 

DoD Response: Concur. The DON initiated action to accrue the liability 
for nuclear ships and submarines over the estimated useful lives of 
these assets upon the publishing of the revised "DoDFMR" guidance. For 
Navy ships and submarines placed into service on or after October 1, 
1997, the DON will begin to accrue the environmental disposal liability 
over the life of the ships and submarines when placed into service 
rather than recognizing the full cost. Pie have also instructed the DON 
to include a step in their Financial Improvement Plan to track the 
progress of reporting their environmental liabilities of ships and 
submarines. The estimated completion date is March 31, 2006. 

RECOMMENDATION 6. The GAO recommended that the Secretary of Defense 
direct the Military Departments, as appropriate, to improve compliance 
with federal accounting standards and the "DoDFMR" guidance and remedy 
the specific deficiencies by including all appropriate budget elements 
for reporting financial liabilities for (1) Navy's nuclear ships and 
submarines, (2) Air Force's cleanup and restoration costs, and (3) all 
costs intended to be paid with prior year, budgetary authority (e.g., 
unsigned contracts) by the Military Departments. (p.31/GAO Draft 
Report): 

DoD Response: Concur. We have instructed the Military Departments to 
include a step in their Financial Improvement Plan to comply with this 
recommendation. The estimated completion date is June 30, 2008. 

RECOMMENDATION 7. The GAO recommended that the Secretary of Defense 
direct the Military Departments, as appropriate, to improve compliance 
with federal accounting standards and the "DoDFMR" guidance and remedy 
the specific deficiencies by reconciling the Military Department 
installation level environmental records to installation level property 
records as required and then using the corrected site inventories to 
determine that all sites with cleanup or closure costs are included in 
financial reports of environmental liabilities and all are reported by 
the appropriate Defense Component. (p.32/GAO Draft Report): 

DoD Response: Concur. We have instructed the Military Departments to 
include a step in their Financial Improvement plan to comply with this 
recommendation. The estimated completion date is June 30, 2008. 

RECOMMENDATION 8. The GAO recommended that the Secretary of Defense 
direct the Military Departments, as appropriate, to improve compliance 
with federal accounting standards and the "DoDFMR" guidance and remedy 
the specific deficiencies by producing and maintaining adequate 
supporting documentation for environmental liabilities at all levels in 
accordance with internal control standards in the Federal Government. 
(p.32/GAO Draft Report): 

DoD Response: Concur. We have instructed the Military Departments to 
include a step in their Financial Improvement Plan to comply with this 
recommendation. The estimated completion date is June 30, 2008. 

[End of section] 

Appendix III: GAO Contact and Staff Acknowledgments: 

GAO Contact: 

Linda M. Calbom, (202) 512-9508 or calboml@gao.gov: 

Acknowledgments: 

In addition to the contact named above, Molly Boyle, Assistant 
Director; Doreen Eng, Assistant Director; Stephen Lipscomb, Assistant 
Director; William Bates; Jessica Gray; Mary Ann Hardy; Charles Hodge; 
Nancy Kintner-Meyer; Rick Kusman; Delores Lee; Jenny Li; Tom Perry; 
Bennet Severson; and Stan Stenerson made key contributions to this 
report. 

[End of section] 

Related GAO Reports: 

Nuclear Waste: Better Performance Reporting Needed to Assess DOE's 
Ability to Achieve the Goals of the Accelerated Cleanup Program. GAO- 
05-764. Washington, D.C.: July 29, 2005. 

Securing U.S. Nuclear Materials: DOE Needs to Take Action to Safely 
Consolidate Plutonium. GAO-05-665. Washington, D.C.: July 20, 2005. 

Opportunities Exist to Improve Future Comprehensive Master Plans for 
Changing U.S. Defense Infrastructure Overseas. GAO-05-680R Washington, 
D.C.: June 27, 2005. 

Department of Energy: Further Actions Are Needed to Strengthen Contract 
Management for Major Projects. GAO-05-123. Washington, D.C.: March 18, 
2005. 

Nuclear Waste: Absence of Key Management Reforms on Hanford's Cleanup 
Project Adds to Challenges of Achieving Cost and Schedule Goals. GAO- 
04-611. Washington, D.C.: June 9, 2004. 

DOD Operational Ranges: More Reliable Cleanup Cost Estimates and a 
Proactive Approach to Identifying Contamination Are Needed. GAO-04- 
601. Washington, D.C.: May 28, 2004. 

Yucca Mountain: Persistent Quality Assurance Problems Could Delay 
Repository Licensing and Operation. GAO-04-460. Washington, D.C.: April 
30, 2004. 

Nuclear Waste Cleanup: DOE Has Made Some Progress in Cleaning Up the 
Paducah Site, but Challenges Remain. GAO-04-457. Washington, D.C.: 
April 1, 2004. 

Military Munitions: DOD Needs to Develop a Comprehensive Approach for 
Cleaning Up Contaminated Sites. GAO-04-147. Washington, D.C.: December 
19, 2003. 

Nuclear Waste: Challenges to Achieving Potential Savings in DOE's High- 
Level Waste Cleanup Program. GAO-03-593. Washington, D.C.: June 17, 
2003. 

Environmental Contamination: DOD Has Taken Steps to Improve Cleanup 
Coordination at Former Defense Sites but Clearer Guidance Is Needed to 
Ensure Consistency. GAO-03-146. Washington, D.C.: March 28, 2003. 

Fiscal Exposures: Improving the Budgetary Focus on Long-Term Costs and 
Uncertainties. GAO-03-213. Washington, D.C.: January 24, 2003. 

Long-Term Commitments: Improving the Budgetary Focus on Environmental 
Liabilities. GAO-03-219. Washington, D.C.: January 24, 2003. 

Environmental Contamination: Corps Needs to Reassess Its Determinations 
That Many Former Defense Sites Do Not Need Cleanup. GAO-02-658. 
Washington, D.C.: August 23, 2002. 

Environmental Contamination: Many Uncertainties Affect the Progress of 
the Spring Valley Cleanup. GAO-02-556. Washington, D.C.: June 6, 2002. 

Waste Cleanup: Status and Implications of DOE's Compliance Agreements. 
GAO-02-567. Washington, D.C.: May 30, 2002. 

Nuclear Waste: Technical, Schedule, and Cost Uncertainties of the Yucca 
Mountain Repository Project. GAO-02-191. Washington, D.C.: December 21, 
2001. 

Environmental Liabilities: Cleanup Costs From Certain DOD Operations 
Are Not Being Reported. GAO-02-117. Washington, D.C.: December 14, 
2001. 

Environmental Contamination: Cleanup Actions at Formerly Used Defense 
Sites. GAO-01-557. Washington, D.C.: July 31, 2001. 

Nuclear Cleanup: DOE Should Reevaluate Waste Disposal Options Before 
Building New Facilities. GAO-01-441. Washington, D.C.: May 25, 2001. 

Nuclear Waste: Agreement Among Agencies Responsible for the West Valley 
Site Is Critically Needed. GAO-01-314. Washington, D.C.: May 11, 2001. 

Environmental Liabilities: DOD Training Range Cleanup Cost Estimates 
Are Likely Understated. GAO-01-479. Washington, D.C.: April 11, 2001. 

Nuclear Waste: DOE's Advanced Mixed Waste Treatment Project-- 
Uncertainties May Affect Performance, Schedule, and Price. RCED-00- 
106. Washington, D.C.: April 28, 2000. 

(190133): 

FOOTNOTES 

[1] Polychlorinated biphenyls (PCB) are chemicals once used as coolants 
and lubricants in transformers, capacitors, fluorescent lighting 
fixtures, and other electrical equipment. The manufacture of PCBs was 
banned in the United States in 1977 because of evidence that they build 
up in the environment and cause harmful effects in humans and in 
wildlife. 

[2] Throughout this report, we use the terms cleanup or remediation 
interchangeably to refer to a wide range of activities intended to 
restore the environment, such as stabilizing contaminated soil, 
treating contaminated groundwater, decontaminating and demolishing 
contaminated buildings, and exhuming buried drums of waste. 

[3] In this report, we primarily use environmental liability amounts 
reported as of fiscal year-end 2004. At the time we developed our audit 
approach and began our work, it was the most recent fiscal year for 
which an entire year's data were available. Reported environmental 
liabilities as of fiscal year-end 2005, compiled after our work began, 
totaled $259.8 billion. 

[4] As discussed later in this report, we previously reported on 
shortcomings with the federal budgeting process for environmental 
liabilities. See GAO, Long-Term Commitments: Improving the Budgetary 
Focus on Environmental Liabilities, GAO-03-219 (Washington, D.C.: Jan. 
24, 2003). 

[5] An agency's performance and accountability report contains the 
agency's description of its performance for the year as well as its 
annual financial statements and independent auditor's reports. Fiscal 
year 2004 reports reflect each agency's financial results and positions 
as of and for the year ended September 30, 2004. 

[6] GAO, Opportunities Exist to Improve Future Comprehensive Master 
Plans for Changing U.S. Defense Infrastructure Overseas, GAO-05-680R 
(Washington, D.C.: June 27, 2005). 

[7] 42 U.S.C. §§ 6901-6991k. 

[8] 42 U.S.C. §§ 9601-9675. 

[9] 42 U.S.C. §§ 10101-10270. 

[10] Pub. L. No. 102-579, 106 Stat. 4777 (October 30, 1992), as amended 
by Pub. L. No. 104-201, div. C, title XXXI, §§ 3181-3191, 110 Stat. 
2422, 2851 (September 23, 1996). 

[11] GAO, 21st Century Challenges: Reexamining the Base of the Federal 
Government, GAO-05-325SP (Washington, D.C.: February 2005). 

[12] GAO, High-Risk Series: An Update, GAO-05-207 (Washington, D.C.: 
January 2005). 

[13] GAO, Long-Term Commitments: Improving the Budgetary Focus on 
Environmental Liabilities, GAO-03-219 (Washington, D.C.: Jan. 24, 
2003). 

[14] GAO, Fiscal Exposures: Improving the Budgetary Focus on Long-Term 
Costs and Uncertainties, GAO-03-213 (Washington, D.C.: Jan. 24, 2003). 

[15] Recognition means reporting a dollar amount on the face of the 
financial statements. 

[16] Several other federal accounting standards also apply to 
environmental liability disclosures. The Federal Accounting Standards 
Advisory Board's Federal Financial Accounting and Auditing Technical 
Release No. 2, Determining Probable and Reasonably Estimable for 
Environmental Liabilities in the Federal Government, provides further 
guidance to agencies in recognizing their environmental liabilities. 
SFFAS No. 6, Accounting for Property, Plant, and Equipment, addresses 
cleanup that is deferred until the operation of the associated 
property, plant, or equipment ceases permanently or temporarily. SFFAS 
No. 6 requires the entity to estimate the total cleanup cost when the 
associated property, plant, or equipment is placed into service and to 
recognize a portion of the estimated total cleanup cost as an expense 
during each period the facility is in operation. 

[17] GAO, Standards for Internal Control in the Federal Government, 
GAO/AIMD-00-21.3.1 (Washington, D.C.: November 1999). 

[18] For purposes of this report, we use the term location to refer to 
all of the environmental cleanup at a particular place, such as at 
Energy's Hanford nuclear reservation or Defense's Puget Sound Naval 
Shipyard. We use the term site to refer to the various cleanup projects 
or areas of contamination awaiting cleanup at a location. Thus, a 
particular cleanup location could have many contaminated sites. 

[19] Under federal accounting standards, the reported liability for 
social security is only that amount due and payable at the end of the 
fiscal year, not the estimated amount of future payments. As previously 
mentioned, the environmental liability estimate is likely misstated 
given Defense's internal control weaknesses with its estimation 
processes, discussed later in this report. 

[20] The national laboratories are a system of research facilities 
funded and controlled by Energy to advance science and help promote the 
economic and defensive interests of the country. 

[21] Energy's Office of Environmental Management (EM) has 
responsibility for managing the environmental cleanup of its legacy 
waste. Energy refers to "active facilities" as those facilities 
requiring cleanup that are operated by programs other than EM. The 
Office of Legacy Management has responsibility for long-term 
stewardship after locations are remediated and closed. 

[22] These formerly used defense sites were once owned or controlled by 
Defense but are now owned by states, local governments, and 
individuals. The U.S. Army Corps of Engineers is responsible for 
identifying, investigating, and cleaning up hazardous, toxic, and 
radioactive wastes; ordnance and explosive wastes; and unsafe buildings 
if Defense caused the unsafe condition. 

[23] As discussed later in this report, the estimated target date for 
the opening of the repository, which currently hasn't been constructed, 
has been delayed several times due to various legal and regulatory 
challenges. Due to recent difficulties, Energy has not committed to a 
new target date and thus, there is significant uncertainty as to what 
the final cost of the repository might be. 

[24] Energy's auditors disclaimed an opinion on Energy's fiscal year 
2005 financial statements due to limitations on the scope of work they 
could perform on the overall audit. During 2005, Energy implemented a 
new accounting system and chart of accounts and reorganized its finance 
and accounting services, which resulted in a significant number of 
conversion, posting, reconciliation, and reporting issues that Energy 
was unable to resolve by fiscal year-end. As a result, the auditors 
were not able to perform the work necessary to express an opinion on 
Energy's financial statements for the year. Energy reported 
environmental liabilities of $189.7 billion in its fiscal year 2005 
financial statements. 

[25] The configuration control board is made up of deputy assistant 
secretaries in Energy's Office of Environmental Management. According 
to one board official, the board meets at least monthly to review 
project baselines and proposed baseline changes. Proposed baseline 
changes that result in a decrease in cost estimate do not require the 
configuration control board's approval but do require formal 
notification to the board of the change. 

[26] NNSA is a separate entity within Energy responsible for the 
management and security of the nation's nuclear weapons, 
nonproliferation, and naval reactor programs. 

[27] American Institute of Certified Public Accountants, Statement on 
Auditing Standards No. 57, Auditing Accounting Estimates, AU §342.14. 
This standard became effective for audits of financial statements for 
periods beginning on or after January 1, 1989. 

[28] The $33.2 billion contingency estimate primarily represents the 
contingency amount generated by Energy's contingency model. In some 
cases, specific locations or projects develop their own contingency 
amounts separate from the model. The actual contingency percentages 
generated by the model in fiscal year 2004 ranged from 26.3 percent for 
the legacy waste component to 16.9 percent for the long-term 
stewardship portion of the liability. 

[29] Reportable conditions are significant deficiencies in the design 
or operation of internal control that could adversely affect the 
entity's ability to record, process, summarize, and report financial 
data consistent with the assertions of management in the financial 
statements. A material weakness is a reportable condition in which the 
design or operation of one or more of the internal control components 
does not reduce to a relatively low level the risk that misstatements 
caused by error or fraud in amounts that would be material in relation 
to the financial statements being audited may occur and not be detected 
within a timely period by employees in the normal course of performing 
their assigned functions. 

[30] Statement of Federal Financial Accounting Standards, No. 23, 
Eliminating the Category National Defense Property, Plant, and 
Equipment. 

[31] Department of Defense, Financial Management Regulations (FMR) vol. 
4, ch. 13, Accounting Policy and Procedures, Environmental and 
Nonenvironmental Liabilities (Washington, D.C.: October 2005). 

[32] Department of Defense, Financial Management Regulations (FMR), 
vol. 4, ch. 13, Accounting Policy and Procedures, Environmental and 
Nonenvironmental Liabilities (Washington, D.C.: October 2005) and 
Statement of Federal Financial Accounting Standards, No. 5, Accounting 
for Liabilities of the Federal Government. 

[33] Department of the Air Force, Thirty Year Maximum Combined Remedial 
Action Operation/Long-Term Management Criteria. 

[34] U.S. Department of Defense, Office of Inspector General, Financial 
Management: Environmental Liabilities Required To Be Reported on Annual 
Financial Statements, D-2004-080 (Arlington, VA: May 5, 2004) and 
Department of the Navy, Naval Audit Service, Agreed-Upon Procedures 
Attestation Engagement of Department of the Navy General Fund, Fiscal 
Year 2004 Environmental Liabilities Account, N2005-0050 (Washington, 
D.C.: July 15, 2005). 

[35] Department of Defense, Financial Management Regulations (FMR) vol. 
4, ch. 13, Accounting Policy and Procedures, Environmental and 
Nonenvironmental Liabilities (Washington, D.C.: October 2005). 

[36] GAO, Department of Energy: Preliminary Information on the 
Potential for Columbia River Contamination from the Hanford Site, GAO- 
06-77R (Washington, D.C.: Nov. 4, 2005). 

[37] Chromium is toxic to fish and this portion of the Columbia River 
is a major salmon breeding area. 

[38] Energy is responsible for the construction, management, and 
operation of the intended geologic repository at Yucca Mountain. EPA is 
responsible for developing site-specific standards for Yucca Mountain 
to protect public health and the environment from harmful exposure to 
the radioactive waste that would be stored and disposed of in the 
repository. The Nuclear Regulatory Commission is responsible for 
licensing Energy to construct the repository and to dispose of high- 
level radioactive waste and spent nuclear fuel in the repository, which 
includes determining whether Energy can meet EPA's standards. 

[39] See the Related GAO Reports section of this report. Many of these 
reports identify weaknesses with Energy's and Defense's management of 
their environmental cleanup programs. 

[40] GAO, Contract Reform: DOE Has Made Progress, but Actions Needed to 
Ensure Initiatives Have Improved Results, GAO-02-798 (Washington, D.C.: 
Sept. 13, 2002). 

[41] See for example, U.S. Department of Energy, Office of Inspector 
General, Accelerated Tank Waste Retrieval Activities at the Hanford 
Site, DOE/IG-706 (Washington, D.C.: Oct. 17, 2005); GAO, Nuclear Waste: 
Better Performance Reporting Needed to Assess DOE's Ability to Achieve 
the Goals of the Accelerated Cleanup Program, GAO-05-764 (Washington, 
D.C.: July 29, 2005); and U.S. Department of Energy, Office of 
Inspector General, National Nuclear Security Administration's Pit 
Disassembly and Conversion Facility, DOE/IG-0688 (Washington, D.C.: May 
3, 2005). 

[42] GAO, Military Munitions: DOD Needs to Develop a Comprehensive 
Approach for Cleaning Up Contaminated Sites, GAO-04-147 (Washington, 
D.C.: Dec. 19, 2003). 

[43] GAO, Environmental Contamination: Corps Needs to Reassess Its 
Determinations That Many Former Defense Sites Do Not Need Cleanup, GAO- 
02-658 (Washington, D.C.: Aug. 23, 2002). 

[44] Legal representation letters are generally prepared by the 
agency's general counsel to document its evaluation of the likelihood 
of an unfavorable outcome by categorizing each case as probable, 
reasonably possible, or remote in accordance with federal accounting 
standards. These letters are used to inform the agency's auditor about 
litigation, claims, and assessments to help the auditor determine the 
adequacy of the financial accounting and reporting of such matters in 
the agency's financial statements. Energy uses two kinds of letters 
that collectively contain its legal representations. 

[45] An emphasis paragraph is explanatory and is not construed as a 
qualification of the auditor's opinion. It is intended to highlight 
circumstances of particular importance and to aid in interpreting the 
financial statements. 

[46] According to the written comments, the Department of Defense 
Financial Improvement and Audit Readiness Plan includes key milestones 
addressing the issues of financial management review, approval, and 
assessment of the estimation and reporting process. 

[47] GAO, Opportunities Exist to Improve Future Comprehensive Master 
Plans for Changing U.S. Defense Infrastructure Overseas, GAO-05-680R 
(Washington, D.C.: Jun. 27, 2005). 

[48] GAO, Standards for Internal Control in the Federal Government, 
GAO/AIMD-00-21.3.1 (Washington, D.C.: November 1999). 

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