Savannah River Site uses passive system to remove groundwater contaminants

June 8, 2022, 3:00PMNuclear News
SRNS environmental engineers Bryce Garner (left) and Adam Willey (center) ask questions of lead operator Daniel Ferrell (right), from field services contractor Cascade Environmental, as he describes how equipment injects oil and iron into the Savannah River Site’s groundwater. (Photo: DOE)

In this week’s “EM Update,” the Department of Energy’s Office of Environmental Management (EM) reports that its contractor Savannah River Nuclear Solutions (SRNS) has successfully reduced degreasing solvents in the aquifer beneath the Savannah River Site in South Carolina using a technology that injects a form of iron and oil into groundwater.

“The oil attracts the Cold War[–era] cleaning solvents while the iron degrades and neutralizes the contamination,” said Shannan Lucero, SRNS manager for area closure projects.

Remediation of two Kyrgyz uranium legacy sites completed

March 29, 2022, 7:02AMRadwaste Solutions
A view of the village of Min Kush in central Kyrgyzstan. (Photo: EBRD)

The remediation of two former Soviet-era uranium mining sites in Kyrgyzstan has been completed on schedule and below budget, despite difficulties caused by the COVID-19 pandemic, the European Bank for Reconstruction and Development (EBRD) announced on March 28.

Canada’s CNL seeks stakeholder support for Chalk River disposal facility

March 2, 2022, 7:00AMRadwaste Solutions
A rendering of Canadian Nuclear Laboratories’ proposed Near Surface Disposal Facility. (Image: CNL)

Canadian Nuclear Laboratories (CNL) is asking its stakeholders (members of the public, industry, elected officials, and employees) to support a proposal to construct the Near Surface Disposal Facility (NSDF) to dispose of legacy radioactive waste at the Chalk River Laboratories in Ontario.

DOE hires contractor for completion of Moab remediation work

February 7, 2022, 7:02AMRadwaste Solutions
The Moab cleanup site in Utah in 2018. (Photo: DOE)

The Department of Energy’s Office of Environmental Management (DOE-EM) has awarded a cleanup contract to North Wind Portage, Inc. for completion of environmental remediation of a uranium ore processing site near Moab, Utah. North Wind Portage is located in Idaho Falls, Idaho.

More information about the Moab project is available here.

Agreement reached on cleanup of 25-mile Savannah River Site stream corridor

January 31, 2022, 9:30AMRadwaste Solutions
An SRNS subcontractor technician takes radiological readings of soil near Lower Three Runs, part of a major project to complete the cleanup of a contaminated 25-mile-long stream corridor at SRS. (Photo: DOE) (CLICK TO SEE FULL PHOTO)

Savannah River Nuclear Solutions (SRNS), the Department of Energy’s management and operating contractor for the Savannah River Site in South Carolina, has reached an agreement with the state of South Carolina and federal environmental regulators on the final cleanup of a 25-mile-long stream corridor at the site that was radiologically contaminated as a result of operations during the Cold War.

The corridor consists of Par Pond, nine miles of canals adjacent to the pond, and a stream named Lower Three Runs. The stream begins near the center of the site, just above Par Pond, and winds its way southward across SRS.

Machine learning and environmental remediation

January 28, 2022, 9:29AMANS Nuclear CafeAndrew Amann

Due to the large amount of water used by nuclear power plants, measuring the water’s impact on the environment is a huge data processing task. It is impossible to manually measure millions of gallons, along with tracking wildlife and the weather. The data computation needed to understand environmental patterns takes massive amounts of storage and strong algorithms to uncover anomalies.

DOE and EPA agree on further cleanup work at Hanford’s 100-BC Area

October 22, 2021, 7:14AMRadwaste Solutions
The 100-BC Area (in green) within the Hanford Site. (Image: DOE)

Soil and groundwater contamination at the Hanford Site’s 100-BC Area will be treated under a record of decision (ROD) signed by the Department of Energy and the Environmental Protection Agency, with the concurrence of the Washington State Department of Ecology.

IAEA and European Union extend nuclear safety agreement

September 27, 2021, 7:00AMNuclear News
The EU’s Massimo Garribba (left) and the IAEA’s Lydie Evrard met at last week’s 65th IAEA General Conference to extend a 2013 cooperation agreement. (Photo: C./Silva Villareal)

Some of the major achievements of the nuclear safety cooperation agreement between the International Atomic Energy Agency and the European Union (EU) include more than 100 nuclear safety review missions, environmental remediation at former uranium sites in Central Asia, and more effective radioactive waste management in Africa.

Pine forest helps safely disperse tritium at Savannah River Site

September 23, 2021, 9:30AMRadwaste Solutions
U.S. Forest Service employees Secunda Hughes (left) and Andrew Thompson inspect irrigation piping and sprinkler heads, part of a 62-acre pine plantation used to safely disperse tritium at the Savannah River Site.

The Department of Energy’s Office of Environmental Management (EM) is managing the release of tritiated water using a 62-acre plantation of pine trees and other natural resources to limit radioactively contaminated groundwater from reaching waterways on the Savannah River Site in South Carolina.

Nevada’s legacy nuclear propulsion facilities slated for demolition

September 15, 2021, 9:30AMRadwaste Solutions
An archive photo of the Nevada National Security Site’s Test Cell C complex, which is being prepared for demolition and closure. (Photo: DOE)

The Department of Energy is preparing to demolish two large, complex facilities at the Nevada Nuclear Security Site with ties to historical nuclear propulsion rocket development and testing programs. The DOE’s Environmental Management (EM) Nevada Program and its environmental program services contractor, Navarro Research and Engineering, have begun characterization and hazard reduction work on the site’s Engine Maintenance, Assembly, and Disassembly (EMAD) and Test Cell C (TCC) complexes.

SRS makes progress in treating contaminated groundwater

September 13, 2021, 9:30AMRadwaste Solutions
F Area operator Thomas Harman (left) and SRNS scientist Kevin Boerstler check the pumps, sensors, and piping that blend a base concentrate to inject into acidic groundwater at the Savannah River Site. (Photo: DOE)

The Savannah River Site is reducing the flow of hazardous and radioactive metal contaminants to South Carolina’s rivers and streams by injecting a mix of clean water and baking soda into the site’s groundwater. The base mix neutralizes groundwater that has become acidic as a result of SRS’s chemical separations work, helping restrict the flow of contaminants.

ISO deems Savannah River’s environmental program ‘robust’

June 30, 2021, 7:18AMRadwaste Solutions
From left, SRNS mechanic Todd Cockrell, engineer John Bradley, and project manager Joao Cardoso-Neto plan the removal of a vapor extraction unit at the Savannah River Site. (Photo: DOE)

Department of Energy site contractors Savannah River Nuclear Solutions and Savannah River Remediation received high marks from a recent independent audit of their environmental management work at the Savannah River Site in South Carolina.

2021 ANS Virtual Annual Meeting: Better TENORM regulations needed

June 15, 2021, 12:04PMNuclear News

When it comes to technologically enhanced naturally occurring radioactive materials (TENORM) produced by the oil and gas industry, “regulations have not kept up with technology,” said the Environmental Protection Agency’s Philip Egidi during a panel session on the opening day of the 2021 ANS Annual Meeting.

$6.4 billion Idaho cleanup contract awarded to Jacobs-led company

June 1, 2021, 3:00PMRadwaste Solutions
The Snake River Plain Aquifer

The Department of Energy’s Office of Environmental Management will award the Idaho Cleanup Project contract for the Idaho National Laboratory site to Idaho Environmental Coalition (IEC), of Tullahoma, Tenn. The contract has an estimated ceiling of approximately $6.4 billion over 10 years, with cost reimbursement and fixed-price task orders to define the contract performance.

AgCl proves effective in reducing Savannah River’s I-129 contamination

April 30, 2021, 12:00PMRadwaste Solutions
SRNS subcontractors Donald Miles and Richard Mooney drill for soil samples as part of a project to immobilize I-129 in the groundwater and soil at the Savannah River Site. Photo: DOE/SRNS

A silver chloride–based cleanup technology is expected to reduce radioactive iodine-129 contamination found in soil and groundwater near the center of the Department of Energy’s Savannah River Site in South Carolina to levels well below regulatory limits. The I-129 was created during the production of plutonium and tritium at the site throughout the Cold War era.

Solar-powered microblowers remove SRS soil contaminants

April 15, 2021, 3:07PMRadwaste Solutions
SRNS engineers (from left) Will Jolin, John Bradley, and Joao Cardoso-Neto discuss a plan to move and repurpose equipment used at 19 soil cleanup sites. Photo: DOE

A project to passively remove nonradioactive contaminants from the soil and groundwater at the Department of Energy’s Savannah River Site in South Carolina is coming to an end, as workers prepare to remove solar-power “plugs” from 19 soil remediation locations at the site.

Next decade of DOE cleanup outlined in updated strategic vision

April 15, 2021, 9:30AMRadwaste Solutions
A radiological worker surveys the inside of a TRUPACT-II containment lid during waste handling operations at WIPP. Photo: DOE

The Department of Energy’s Office of Environmental Management (EM) has released its Strategic Vision 2021-2031 (hereinafter referred to as the 2021 Strategic Vision), a blueprint to the cleanup program’s anticipated accomplishments over the next decade. The new strategic vision updates EM’s previous report, A Time of Transition and Transformation: EM Vision 2020-2030, released in March of last year.

EPA awards $220 million in uranium mine cleanup contracts

February 22, 2021, 9:29AMRadwaste Solutions

The Environmental Protection Agency has awarded three contracts for cleanup efforts at more than 50 abandoned uranium mine sites in and around the Navajo Nation in the southwestern United States. The Navaho Area Abandoned Mine Remedial Construction and Services Contracts, worth up to $220 million over the next five years, were awarded to the Red Rock Remediation Joint Venture, Environmental Quality Management, and Arrowhead Contracting, the agency announced on February 11.

According to the EPA, the cleanup work is slated to begin later this year, following the completion of assessments in coordination with the Navajo Nation EPA, the tribe’s environmental agency. The sites are in New Mexico’s Grants Mining District and 10 Navajo Nation chapters. The companies selected have experience working on hazardous waste sites across the country, including cleaning up other abandoned mine sites in the Southwest, the EPA said.

DOE to treat groundwater at Santa Susana Field Laboratory

November 17, 2020, 12:24PMRadwaste Solutions

In the November 10 Federal Register, the Department of Energy published a record of decision to begin groundwater remediation at the Santa Susana Field Laboratory site in Ventura County, Calif. The cleanup of groundwater will take place at seven locations within Area IV of the former industrial research and development complex.

Santa Susana’s Area IV contains the Energy Technology Engineering Center (ETEC), which was used for liquid metals research and where 10 nuclear research reactors were built and operated. Under an agreement with the state of California, the DOE is currently removing inactive buildings from the ETEC as part of the site cleanup.