Hazardous substances (11 - 20 of 29 items)
Nuclear Waste: Hanford Tank Waste Program Needs Cost, Schedule, and Management Changes
RCED-93-99: Published: Mar 8, 1993. Publicly Released: Mar 19, 1993.
Pursuant to a congressional request, GAO reviewed the status of the Hanford waste vitrification plant, focusing on: (1) technical and other issues that affect the Tank Waste Remediation System (TWRS); and (2) the Department of Energy's (DOE) efforts to end interim storage of high-level radioactive waste at the site.GAO found that: (1) DOE has not determined how many samples it will need for waste...
Nuclear Health and Safety: More Can Be Done to Better Control Environmental Restoration Costs
RCED-92-71: Published: Apr 20, 1992. Publicly Released: Jun 4, 1992.
Pursuant to a congressional request, GAO examined the: (1) degree of cost growth associated with the Department of Energy's (DOE) environmental restoration program; and (2) steps DOE can take to better manage and control cost growth.GAO found that: (1) since DOE has not updated or revised its 1988 total cost estimate for completing all environmental restoration work, GAO could not determine the ag...
Connecticut Low-Level Waste
RCED-92-137R: Published: Mar 17, 1992. Publicly Released: Mar 17, 1992.
Pursuant to a congressional request, GAO provided information on states' efforts to implement the Low-Level Radioactive Waste Policy Amendments Act of 1985, focusing on Connecticut's program for developing a disposal facility for commercial low-level radioactive waste. GAO noted that: (1) 13 states, including 8 states that are members of state compacts, plan to develop new disposal facilities; (2)...
Nuclear Weapons Complex: Major Safety, Environmental, and Reconfiguration Issues Facing DOE
T-RCED-92-31: Published: Feb 25, 1992. Publicly Released: Feb 25, 1992.
GAO discussed the: (1) Department of Energy's (DOE) progress in developing and implementing a safety policy and culture; (2) major challenges facing DOE in cleaning up the nuclear weapons complex; and (3) key issues facing DOE in reconfiguring the complex in light of weapons reductions. GAO noted that: (1) although DOE has made strides in promoting safety issues by adopting a nuclear safety policy...
Nuclear Health and Safety: Problems Continue for Rocky Flats Solar Pond Cleanup Program
RCED-92-18: Published: Oct 17, 1991. Publicly Released: Nov 26, 1991.
Pursuant to a congressional request, GAO provided updated information on the Department of Energy's (DOE) progress in cleaning up solar evaporation ponds at its Rocky Flats Nuclear Weapons Plant, focusing on the: (1) estimated cost of the project; (2) status of the detailed plans for conducting and monitoring the program; (3) status of clean-up activities; and (4) specific milestones that DOE has...
Nuclear Waste: Hanford Single-Shell Tank Leaks Greater Than Estimated
RCED-91-177: Published: Aug 5, 1991. Publicly Released: Sep 19, 1991.
Pursuant to a congressional request, GAO determined whether the Department of Energy (DOE) or its Hanford, Washington, site contractor fully disclosed the volume of waste that leaked from the site's underground single-shell storage tanks.GAO found that: (1) DOE estimated that 750,000 gallons of liquid waste leaked from 66 shell tanks, but did not include the volume of cooling water that had been a...
Nuclear Waste: Pretreatment Modifications at DOE Hanford's B Plant Should Be Stopped
RCED-91-165: Published: Jun 12, 1991. Publicly Released: Jul 17, 1991.
Pursuant to a congressional request, GAO reviewed the Department of Energy's (DOE) plans to modify its Hanford Site B Plant in Washington to pretreat mixed high-level radioactive waste before the vitrification process to turn it into glass.GAO found that: (1) although DOE was aware that the plant had not met specific federal or DOE regulations since 1987, it failed to timely discuss the compliance...
Nuclear Waste: Problems and Delays With Characterizing Hanford's Single-Shell Tank Waste
RCED-91-118: Published: Apr 23, 1991. Publicly Released: May 30, 1991.
Pursuant to a congressional request, GAO reviewed the status of Department of Energy (DOE) efforts to characterize single-shell tank wastes at its Hanford, Washington site, focusing on impediments such as: (1) technological limitations; and (2) safety considerations.GAO found that: (1) due to the number of unresolved issues, DOE was unlikely to complete the first-phase characterization of the sing...
Nuclear Health and Safety: More Attention to Health and Safety Needed at Pantex
RCED-91-103: Published: Apr 15, 1991. Publicly Released: May 1, 1991.
Pursuant to a congressional request, GAO examined key safety and health problems at the Department of Energy's (DOE) contractor-operated Pantex Plant to determine its need for external safety oversight.GAO found that: (1) Pantex cited a lack of personnel for its failure to complete more than half of the safety analysis reports (SAR) needed to ensure plant safety; (2) a DOE team of specialists iden...
Nuclear Waste: Issues Affecting Land Withdrawal of DOE's Waste Isolation Pilot Project
T-RCED-91-38: Published: Apr 16, 1991. Publicly Released: Apr 16, 1991.
GAO discussed the Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP). GAO noted that: (1) by fiscal year (FY) 1997, DOE plans to determine whether WIPP meets the Environmental Protection Agency's (EPA) standards for disposal of transuranic waste in repositories and plans to obtain a variance or exception from the Resource Conservation and Recovery Act (RCRA); (2) DOE postponed plans t...